Updated October 2026
Donner Memorial State Park: Weather by Month and When to Go
Donner Memorial State Park is a state park in California. Average highs range from 39°F in December to 82°F in July.
Average highs sit between 60°F and 80°F in May through June and September through October. They run above 80°F in July and August and below 60°F in November through April. The figures are NOAA climate normals for 1991–2020, measured at a weather station 2.9 miles from the park.
Warmest average high
82°F
July
Coldest average low
17°F
December and January
Most precipitation
6.9 in
December
Longest days
14.8 h
June
Donner Memorial State Park weather by month
| Month | Average high | Average low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 41°F | 17°F | 6.7 in | 40.0 in | 9.5 h |
| February | 43°F | 18°F | 6.6 in | 37.7 in | 10.5 h |
| March | 48°F | 22°F | 6.2 in | 32.9 in | 11.7 h |
| April | 54°F | 26°F | 2.7 in | 15.4 in | 13.0 h |
| May | 63°F | 33°F | 2.1 in | 3.4 in | 14.2 h |
| June | 73°F | 38°F | 0.7 in | 0.5 in | 14.8 h |
| July | 82°F | 44°F | 0.4 in | 0.0 in | 14.5 h |
| August | 81°F | 42°F | 0.4 in | 0.0 in | 13.5 h |
| September | 75°F | 36°F | 0.5 in | 0.0 in | 12.2 h |
| October | 63°F | 29°F | 2.2 in | 2.4 in | 10.9 h |
| November | 49°F | 23°F | 3.6 in | 10.1 in | 9.8 h |
| December | 39°F | 17°F | 6.9 in | 40.5 in | 9.2 h |
Temperature, precipitation and snowfall figures are NOAA climate normals for 1991–2020 from station USC00042467, the nearest station with a complete set of temperature normals, 2.9 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month.
What the averages show
- Temperature. July is the warmest month, with an average high of 82°F and an average low of 44°F. December and January are the coldest months, each with an average low of 17°F.
- Precipitation. December is the wettest month, averaging 6.9 inches of precipitation, and July and August are the driest, at 0.4 inches each. An average year brings about 39.0 inches in total.
- Snowfall. The station averages 182.9 inches of snow a year, with the most in December (40.5 inches).
- Daylight. Days run from about 9.2 hours of daylight in December to 14.8 hours in June.
Camping, trails, maps and fees
Whether Donner Memorial State Park has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
Official Donner Memorial State Park page
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
National Weather Service forecast for Donner Memorial State Park
Where to stay near Donner Memorial State Park
Hotels, cabins and vacation rentals near Donner Memorial State Park, with live availability and prices.
Top-rated places to stay near Donner Memorial State Park
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Frequently Asked Questions
July is the warmest month, with an average high of 82°F and an average low of 44°F. December and January are the coldest months, each with an average low of 17°F. These are NOAA 1991–2020 climate normals from a weather station 2.9 miles from the park.
Average highs sit between 60°F and 80°F in May through June and September through October. They run above 80°F in July and August and below 60°F in November through April.
December is the wettest month, averaging 6.9 inches of precipitation, and July and August are the driest, at 0.4 inches each. An average year brings about 39.0 inches in total. Snowfall averages 182.9 inches a year, with the most in December.
Days run from about 9.2 hours of daylight in December to 14.8 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Lassen Volcanic National Park102 miles away
- Yosemite National Park108 miles away
- John Muir National Historic Site135 miles away
Nearby state parks
- Emerald Bay State Park26 miles away
- Calaveras Big Trees State Park72 miles away
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location; the official California state park listing for the park's name.