Green Mountain Campground, Oregon Weather
Recreation Area • Central Oregon
Green Mountain Campground is a six-site primitive BLM campground on the slopes of Green Mountain, north of Christmas Valley in northern Lake County. The BLM's Lakeview District runs it as a base for Crack-in-the-Ground and the Four Craters Lava Field, below a fire lookout that is staffed June through October.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Green Mountain Campground weather today and through the year
It's 36°F at Green Mountain Campground right now (feels like 27°F), with 13 mph wind and a comfort score of 29. Saturday's forecast high at Green Mountain Campground is 41°F, 6°F below the mid November normal of 47°F. The best window tomorrow is noon to 3 PM, at about 33°F with a 7 mph wind (comfort 37).
July is the warmest month at Green Mountain Campground, with an average high of 85°F. December is the coldest, with an average low of 20°F. December is the wettest month (1.4 in.), out of about 11.0 in. a year. By typical temperature, wind, cloud, humidity, and precipitation odds, the most comfortable months at Green Mountain Campground are August, June, and September. The best hours are usually 10 AM to 1 PM in August, noon to 3 PM in June, and 1 PM to 4 PM in September.
Green Mountain is a broad volcanic rise above the flat floor of Christmas Valley. It sits at the southeastern edge of Central Oregon's high desert, deep in the rain shadow of the Cascades. That rain shadow is the dry zone east of the mountains, where storms have already dropped most of their moisture. Precipitation is scant and skies are clear most of the year. The campground sits several hundred feet above the valley, with a wide view over lava flows and cinder cones.
Forecast updated November 13, 2026 at 5:02 PM PST. Climate figures come from NOAA 1991-2020 normals. Hourly patterns come from NOAA's HRRR hourly analysis from May 2016 to May 2026.
What to expect at Green Mountain Campground in the next few days
No active National Weather Service alerts for this location.
Best time to go
The best window tomorrow is noon to 3 PM, at about 33°F with a 7 mph wind (comfort 37).
Hiking conditions
No daylight hour in the next week is forecast to be dry, 45 to 80°F, and under 18 mph wind at Green Mountain Campground.
Best day this week
Of the next 7 days, Monday looks best for Green Mountain Campground, with a 41°F high and midday comfort near 39. Today looks weakest (27).
This weekend
This weekend: Saturday 41°F/30°F with a 12% chance of rain, Sunday 43°F/33°F with a 44% chance of rain.
Rain
Next good chance of rain: today (80%, about 0.07 in.).
Snow
Snow is in the forecast: about 0.7 in. over the next week, starting Thursday.
Freezing nights
6 of the next 7 nights are forecast to reach freezing or colder.
Live weather map
Weather around Green Mountain Campground right now
Light rain and 36° at Green Mountain Campground right now.
About the live weather map for Green Mountain Campground
The map centers on Green Mountain Campground and stacks wildfire smoke, satellite clouds, and precipitation radar on one view. Clouds come from the GOES-West satellite and rain from NOAA radar, and both show current conditions.
Dots mark nearby places with their current temperature, colored by comfort score. Use the layer buttons to turn any layer off, or open the full map for every destination in the region.
Nearby Temperature Comparison
Conditions at nearby Central Oregon destinations
Tip: Central Oregon temperatures can change by 20 to 30°F over a short distance because of microclimates.
Green Mountain Campground vs nearby places
Typical summer conditions compared with Green Mountain Campground, from the same NOAA HRRR hourly record. The list shows the closest places, then nearby places whose climate differs the most.
| Place | Distance | Summer afternoons | Morning fog | Afternoon wind | Compared with Green Mountain Campground |
|---|---|---|---|---|---|
| Crack-in-the-Ground | 4.4 mi | +2°F | 1% | 10 mph | a very similar climate |
| Derrick Cave | 11.6 mi | -1°F | 0% | 10 mph | about 30% more precipitation a year |
| Fort Rock State Natural Area | 17.2 mi | +2°F | 1% | 10 mph | a very similar climate |
Places with a climate like Green Mountain Campground's
- La Pine (44 mi away): nearly the same temperatures every month
- Three Rivers South (48 mi away): nearly the same temperatures every month
- La Pine State Park (48 mi away): nearly the same temperatures every month
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Green Mountain Campground climate comparisons mean
These cards compare recent conditions at Green Mountain Campground with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available. Fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.
Positive and negative differences describe how Green Mountain Campground departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.
Green Mountain Campground weather by month
July is the warmest month at Green Mountain Campground, with an average high of 85°F. December is the coldest, with an average low of 20°F. December is the wettest month (1.4 in.), out of about 11.0 in. a year. July has the clearest middays, with clouds covering about 1% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and precipitation odds, the most comfortable months at Green Mountain Campground are August, June, and September. The best hours are usually 10 AM to 1 PM in August, noon to 3 PM in June, and 1 PM to 4 PM in September.
| Month | Avg high | Avg low | Precip | Wet days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 40°F | 21°F | 1.1 in | 6 | 9% | 14% | 11 mph | 9.3 h | 39 |
| Feb | 43°F | 22°F | 0.9 in | 6 | 7% | 16% | 13 mph | 10.4 h | 40 |
| Mar | 49°F | 25°F | 1.2 in | 7 | 5% | 19% | 14 mph | 11.8 h | 35 |
| Apr | 55°F | 28°F | 0.9 in | 6 | 3% | 16% | 13 mph | 13.4 h | 46 |
| May | 65°F | 35°F | 1.4 in | 7 | 2% | 13% | 12 mph | 14.7 h | 59 |
| Jun | 74°F | 40°F | 0.8 in | 5 | 0% | 7% | 12 mph | 15.4 h | 77 |
| Jul | 85°F | 46°F | 0.5 in | 4 | 0% | 1% | 10 mph | 15.1 h | 76 |
| Aug | 83°F | 44°F | 0.4 in | 4 | 0% | 1% | 10 mph | 13.9 h | 78 |
| Sep | 75°F | 38°F | 0.4 in | 4 | 2% | 4% | 10 mph | 12.4 h | 77 |
| Oct | 61°F | 30°F | 1.0 in | 6 | 3% | 8% | 11 mph | 10.9 h | 60 |
| Nov | 47°F | 25°F | 1.1 in | 6 | 7% | 13% | 11 mph | 9.6 h | 45 |
| Dec | 38°F | 20°F | 1.4 in | 7 | 9% | 13% | 10 mph | 9.0 h | 37 |
Morning fog is the share of hours from 6 to 10 AM with fog or low cloud. Midday cloud is the average from 11 AM to 3 PM, and afternoon wind is the average from 1 to 5 PM. The highlighted rows are the most comfortable months.
What makes Green Mountain Campground's weather different
Among the 17 Central Oregon recreation areas we track, Green Mountain Campground has the 2nd-windiest summer afternoons.
- #2of 17
windiest summer afternoonsamong Central Oregon recreation areas
When the wind picks up
noonwhen afternoon wind builds, January–November
From January through November, wind at Green Mountain Campground typically builds after noon. In March it peaks around 4 PM, averaging 14 mph with 45% of those hours windy, while mornings average 8 mph.
Freezing hours
18 hbelow freezing on a typical December night
In December, the average stays at or below freezing for 18 hours of the night and morning.
Daylight
9–15.4 hof daylight, Dec to Jun
Days at Green Mountain Campground range from about 9 hours in December to 15.4 hours in June. In mid-June the sun sets around 8:45 PM, and in mid-December around 4:33 PM.
Wildfire smoke
19 daysof smoky air per fire season (about AQI 75+)
NOAA's HRRR-Smoke model gives the area around Green Mountain Campground an average of 19 smoky days a fire season from 2021 to 2025. On each of those days, smoke held the air quality index at about 75 or higher for at least three hours. About 27 more days a season had lighter smoke.
Snow
24 inof snow per winter (HRRR estimate)
NOAA's HRRR model puts Green Mountain Campground at about 24 inches of snow a winter, falling on about 20 days. That is the average of the 2023-24, 2024-25 and 2025-26 winters.
Seasons at Green Mountain Campground
- Warm seasonJun 24 – Sep 24 · highs 74°F+
The warm season lasts about 3.1 months, from Jun 24 to Sep 24, when the average high is 74°F or warmer. Highs peak around Jul 8 at about 85°F.
- Cool seasonNov 26 – Feb 25 · highs 45°F or lower
The cool season runs from Nov 26 to Feb 25, when the average high is 45°F or lower. The coldest nights come around Dec 8, with an average low near 20°F.
- Freezing nightsOct 4 – May 1 · lows 32°F or colder
Average lows at Green Mountain Campground are at or below freezing from Oct 4 to May 1.
- Wet seasonNov 16 – Mar 31 · 47% of the year's precipitation
The wet season runs from Nov 16 to Mar 31, when a day has at least a 20% chance of measurable precipitation. That stretch brings 47% of the year's precipitation.
The dark line marks today. Season dates come from the smoothed daily NOAA 1991-2020 normals. Counting from Oct. 1, a typical year has its first inch of precipitation by Oct 31 and half of its annual total by Mar 1.
Days per year and extremes (Nov 1, 2024 to Oct 31, 2026)
This record runs from Nov 1, 2024 to Oct 31, 2026. Over this record, Green Mountain Campground averaged 8 days a year at 90°F or hotter and 157 nights a year at or below freezing. It averaged 3 days a year with at least half an inch of precipitation and 29 afternoons with wind of 20 mph or more at 2 PM. About 20 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Aug 7, 2026 (94°F) and the coldest night was Feb 12, 2025 (-8°F). The wettest day was Mar 16, 2025 (1.45 in.), and the strongest 2 PM gust was 64 mph on Dec 18, 2025.
- 8days at 90°F or hotter
- 157nights at or below freezing
- 3days with ½ in. of precipitation or more
- 29afternoons with 20+ mph wind
- 20mornings with 3+ hours of fog or low cloud
- Hottest day94°FAug 7, 2026
- Coldest night-8°FFeb 12, 2025
- Wettest day1.45 inMar 16, 2025
- Strongest 2 PM gust64 mphDec 18, 2025
What shapes Green Mountain Campground's weather
Green Mountain's height and open slopes make the campground one of the windiest in Central Oregon. Wind blows even in the morning here, builds after midday and peaks in mid-afternoon. Spring is the windiest season, and March and April afternoons can be hard enough to flatten a poorly staked tent.
On still nights, cold air drains off the mountain and settles on the valley floor around Christmas Valley and the Crack-in-the-Ground flats below. Even up on the slope, frost is likely from early October to the start of May, and day-to-night swings are large in every season.
Clear, dry air and the distance from town lights make the nights very dark. In late summer, thunderstorms and wildfire smoke are the main weather threats, which is why the lookout on the summit is staffed through the fire season.
Tips for visiting Green Mountain Campground
Bring all your water
There is no drinking water at the campground. Christmas Valley has the nearest stores and fuel.
Bring four-wheel drive
The BLM recommends four-wheel drive, because the rugged dirt access roads can be impassable at times, especially when wet.
Stake tents for wind
Spring and summer afternoons are gusty on the open slope. Use extra stakes and guylines, and park vehicles as a windbreak.
First come, first served
The six sites can't be reserved. Each has a picnic table and fire grate, and there is a vault toilet. Pack out all trash.
Follow the BLM directions
From Christmas Valley, go east about 2 miles on Christmas Valley Highway, then north on Crack-in-the-Ground Road. Turn left on Lava Craters Road and follow it past Crack-in-the-Ground until it becomes Green Mountain Road (BLM Road 6109-00).
Green Mountain Campground through the seasons
- Spring (March–May)
- Spring is the windiest season, with cold nights and roads that can be muddy after storms. Calm mornings are the time to hike.
- Summer (June–August)
- Summer brings hot, dry days and cool nights. The fire lookout is staffed from June, and thunderstorms and smoke are possible.
- Fall (September–November)
- Fall brings calmer, clear days and frosty nights. The lookout is staffed through October.
- Winter (December–February)
- The campground is open all year, but cold nights, light snow and muddy or icy roads limit winter trips.
Activities and the weather that matters
- Stargazing: Dry air and dark skies make clear nights full of stars. Wind usually drops after dark, but dress for cold.
- Exploring Crack-in-the-Ground: The fissure is a short drive back down the road. Its floor stays cool on hot afternoons, making it a good midday outing.
- Four Craters Lava Field: The campground is a base for exploring the lava flows and cinder cones. Go in calm morning hours, since afternoon wind is strong on the open lava.
- Photography: Sunrises and sunsets over the desert are the draw. Clear, smoke-free fall evenings are often best.
Official sources and current conditions
Numbers on this page come from NOAA data. The text draws on the official sources linked above.
Historical Climate Data
Long-term weather patterns and climate data
Data sources: Recent temperature, precipitation, fog, cloud, wind, humidity, and sunshine come from NOAA HRRR, and long-term baselines from NOAA 1991-2020 climate normals.
Climate Overview
Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline
🌟 Best Months to Visit
⚠️ Challenging Months
Monthly Breakdown
| Month | Comfort | High/Low | ☀️ Sun | 🌫️ Fog | 💧 Rain | Perfect |
|---|---|---|---|---|---|---|
| November 2024 | 55 | 40.9° / 26.8° | 5.2h | 2d | 1.32" | 3 |
| December 2024 | 48 | 37.8° / 26.3° | 4.6h | 2d | 2.66" | 0 |
| January 2025 | 56 | 38.2° / 21.1° | 5.9h | 3d | 0.67" | 0 |
| February 2025 | 54 | 36.3° / 19.6° | 5.8h | 5d | 2.17" | 3 |
| March 2025 | 64 | 45.4° / 27.9° | 7h | 2d | 1.83" | 8 |
| April 2025 | 86 | 57.8° / 30.5° | 10.4h | 0d | 0.08" | 25 |
| May 2025 | 89 | 65.8° / 37.7° | 11.8h | 0d | 0.13" | 28 |
| June 2025 | 93 | 75.9° / 45.7° | 12.7h | 0d | 0.51" | 28 |
| July 2025 | 92 | 83.2° / 53° | 12.4h | 0d | 0.47" | 31 |
| August 2025 | 93 | 80.9° / 52.2° | 11h | 0d | 0.18" | 30 |
| September 2025 | 92 | 74.5° / 46.3° | 9.7h | 1d | 0.1" | 27 |
| October 2025 | 79 | 56.1° / 32.5° | 7.6h | 1d | 0.25" | 21 |
| November 2025 | 71 | 50° / 31.2° | 6.4h | 3d | 0.21" | 8 |
| December 2025 | 55 | 44.4° / 30.4° | 5h | 4d | 2.11" | 3 |
| January 2026 | 64 | 42.7° / 24.6° | 6.4h | 1d | 0.16" | 3 |
| February 2026 | 65 | 45.1° / 26.4° | 6.8h | 2d | 1.08" | 6 |
| March 2026 | 78 | 56.2° / 32.9° | 8.8h | 0d | 0.34" | 20 |
| April 2026 | 81 | 56.3° / 30.4° | 9.7h | 0d | 0.32" | 21 |
| May 2026 | 89 | 67.8° / 39° | 12.2h | 1d | 0.55" | 29 |
| June 2026 | 90 | 73.7° / 44.3° | 12.1h | 0d | 0.2" | 29 |
| July 2026 | 88 | 84.5° / 52.7° | 12.1h | 0d | 0.15" | 30 |
| August 2026 | 90 | 83.6° / 51.1° | 11.7h | 0d | 0" | 31 |
| September 2026 | 90 | 67° / 41.3° | 9.5h | 0d | 0.78" | 27 |
| October 2026 | 83 | 61.8° / 35° | 8.3h | 0d | 0.07" | 21 |
Climate Trends
Average Temperature by Month
About the Green Mountain Campground climate charts
The temperature chart compares average monthly highs and lows at Green Mountain Campground, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.
Precipitation shows the total recorded or modeled rainfall for each month at Green Mountain Campground. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.
Snow Depth by Season
0″ on the ground as of Nov 13, compared with an average of 0.7″ on that date.
Now
0″
Typical peak
6.6″
Deepest
18″
2012–13
About this chart and each season's peak
Each gray line is one winter at Green Mountain Campground (5,141 ft), from August through July. The dashed line is the average for each date, and the blue line is this season. Depths come from NOAA's daily SNODAS snow analysis, adjusted for the elevation of this spot, and are updated through Nov 13, 2026.
| Season | Peak depth | Peak date | Days with 1″+ |
|---|---|---|---|
| 2025–26 | 2.2″ | Feb 20 | 9 |
| 2024–25 | 15″ | Feb 5 | 51 |
| 2023–24 | 9.4″ | Jan 14 | 34 |
| 2022–23 | 5.7″ | Dec 31 | 81 |
| 2021–22 | 8.8″ | Jan 4 | 34 |
| 2020–21 | 4.1″ | Nov 15 | 31 |
| 2019–20 | 6.6″ | Jan 17 | 39 |
| 2018–19 | 8.4″ | Feb 27 | 52 |
| 2017–18 | 6.7″ | Mar 4 | 58 |
| 2016–17 | 15″ | Jan 8 | 58 |
| 2015–16 | 14″ | Jan 8 | 53 |
| 2014–15 | 5.8″ | Dec 16 | 19 |
| 2013–14 | 5.7″ | Oct 29 | 24 |
| 2012–13 | 18″ | Jan 29 | 86 |
| 2011–12 | 5.1″ | Jan 20 | 27 |
| 2010–11 | 11″ | Dec 21 | 67 |
| 2009–10 | 5.2″ | Jan 31 | 33 |
| 2008–09 | 7.5″ | Dec 23 | 43 |
| 2007–08 | 7.3″ | Feb 4 | 41 |
| 2006–07 | 3.4″ | Feb 23 | 15 |
| 2005–06 | 4.3″ | Nov 8 | 43 |
| 2004–05 | 2.9″ | Dec 7 | 22 |
| 2003–04 | 5.6″ | Jan 7 | 12 |
Hourly Temperature, Wind, and Cloud Cover Patterns
Average local hour by month from 2016-05-01 to 2026-05-01
- Temperature: At Green Mountain Campground, the warmest typical hour is 4 PM in July (84°F). The coldest is 7 AM in February (24°F).
- Wind: From January through November, wind at Green Mountain Campground typically builds after noon. In March it peaks around 4 PM, averaging 14 mph with 45% of those hours windy, while mornings average 8 mph.
- Cloud Cover: July middays are the clearest at Green Mountain Campground (1% average cloud cover), and March middays are the cloudiest (19%).
How to read the hourly heatmaps for Green Mountain Campground
This heatmap shows how average temperature at Green Mountain Campground changes by hour and month. Read left to right for the seasons and top to bottom for the time of day. Warmer colors mark the usual afternoon peaks, and cooler colors show overnight and winter lows.
This heatmap shows the typical hourly wind pattern at Green Mountain Campground through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.
This heatmap shows average cloud cover at Green Mountain Campground for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.
Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage. The red marker shows the current month and hour.
How recent months compared at Green Mountain Campground
- October 2026 recap: October 2026 at Green Mountain Campground averaged a high of 62°F, 6°F warmer than October 2025 (56°F).
Location Details
Green Mountain Campground weather questions
Everything you need to know about weather and visiting Green Mountain Campground
What is the weather like at Green Mountain Campground today?
It's 36°F at Green Mountain Campground right now, with a comfort score of 29 (poor). Saturday's forecast high at Green Mountain Campground is 41°F, 6°F below the mid November normal of 47°F. The best window tomorrow is noon to 3 PM, at about 33°F with a 7 mph wind (comfort 37).
What is the best month to visit Green Mountain Campground?
By typical temperature, wind, cloud, humidity, and precipitation odds, the most comfortable months at Green Mountain Campground are August, June, and September. The best hours are usually 10 AM to 1 PM in August, noon to 3 PM in June, and 1 PM to 4 PM in September. The warm season lasts about 3.1 months, from Jun 24 to Sep 24, when the average high is 74°F or warmer. Highs peak around Jul 8 at about 85°F.
What are the warmest and coldest months at Green Mountain Campground?
July is the warmest month at Green Mountain Campground, with an average high of 85°F. December is the coldest, with an average low of 20°F. Average lows at Green Mountain Campground are at or below freezing from Oct 4 to May 1.
When is it windiest at Green Mountain Campground?
From January through November, wind at Green Mountain Campground typically builds after noon. In March it peaks around 4 PM, averaging 14 mph with 45% of those hours windy, while mornings average 8 mph.
Does it snow at Green Mountain Campground?
Yes, in most winters. NOAA's HRRR model puts Green Mountain Campground at about 24 inches of snow a winter, falling on about 20 days. That is the average of the 2023-24, 2024-25 and 2025-26 winters.
How much rain and snow does Green Mountain Campground get?
December is the wettest month (1.4 in.), out of about 11.0 in. a year. The wet season runs from Nov 16 to Mar 31, when a day has at least a 20% chance of measurable precipitation. That stretch brings 47% of the year's precipitation.
How smoky does Green Mountain Campground get in fire season?
NOAA's HRRR-Smoke model gives the area around Green Mountain Campground an average of 19 smoky days a fire season from 2021 to 2025. On each of those days, smoke held the air quality index at about 75 or higher for at least three hours. About 27 more days a season had lighter smoke.
What kind of place is Green Mountain Campground?
Green Mountain Campground is a six-site primitive BLM campground on the slopes of Green Mountain, north of Christmas Valley in northern Lake County. The BLM's Lakeview District runs it as a base for Crack-in-the-Ground and the Four Craters Lava Field, below a fire lookout that is staffed June through October.
What is Green Mountain Campground weather like in November?
November at Green Mountain Campground averages a high of 47°F and a low of 25°F, with 1.1 in. of precipitation over about 6 wet days. Afternoon wind averages 11 mph.
More about Green Mountain Campground weather
Guides that explain the weather here and nearby
Data sources and methods
- Monthly temperatures and precipitation: NOAA 1991-2020 normals.
- Fog, cloud, wind, sun, and comfort by hour and month: NOAA's HRRR hourly analysis from May 2016 to May 2026.
- Daily records and recent months: NOAA HRRR analyses, including its hourly precipitation.
- Nearby comparisons and regional rankings use the same hourly HRRR summaries for every destination in the region.
- Alerts: National Weather Service.
- All statements on this page are computed from these datasets, apart from the “What shapes the weather” guide, which cites its sources inline.
- Bureau of Land Management, Green Mountain Campground (accessed 2026-10-29)
- Recreation.gov, Green Mountain Campground (accessed 2026-10-29)
- Bureau of Land Management, Crack-in-the-Ground (accessed 2026-10-29)
Rendered 2026-11-14T01:06:24.031Z.