Updated October 2026
Whiskeytown National Recreation Area Weather by Month
Whiskeytown National Recreation Area is warmest in July, when the nearest NOAA climate station averages a high of 96°F and a low of 63°F, and coldest in December, with an average high of 53°F and an average low of 36°F. December is the wettest month, with about 8.6 inches of precipitation.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 2.6 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Whiskeytown National Recreation Area can differ from these, particularly with elevation.
Warmest month
Jul
96°F avg high
Coldest month
Dec
36°F avg low
Wettest month
Dec
8.6 in avg
Longest days
Jun
14.9 h of daylight
Average weather at Whiskeytown by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 55°F | 37°F | 7.5 in | 9.4 h |
| February | 58°F | 38°F | 8.4 in | 10.4 h |
| March | 62°F | 40°F | 7.5 in | 11.7 h |
| April | 68°F | 45°F | 3.8 in | 13.1 h |
| May | 77°F | 51°F | 2.4 in | 14.3 h |
| June | 87°F | 58°F | 0.8 in | 14.9 h |
| July | 96°F | 63°F | 0.3 in | 14.6 h |
| August | 94°F | 61°F | 0.2 in | 13.6 h |
| September | 89°F | 57°F | 0.3 in | 12.3 h |
| October | 76°F | 49°F | 2.8 in | 10.9 h |
| November | 61°F | 41°F | 4.5 in | 9.7 h |
| December | 53°F | 36°F | 8.6 in | 9.1 h |
| Year total | 47.1 in |
NOAA 1991–2020 climate normals from station USW00004222, 2.6 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Whiskeytown is at that time of year.
Whiskeytown weather by season
Winter: December to February
Average highs climb from 53°F in December to 58°F in February, with average lows near 37°F. Together the three months average 24.5 inches of precipitation, about 52% of the yearly total and more than in any other season. Daylight is at its shortest, about 9.1 hours in December.
Spring: March to May
Average highs climb from 62°F in March to 77°F in May, with average lows between 40°F and 51°F. Together the three months average 13.7 inches of precipitation, about 29% of the yearly total. Daylight lengthens from about 11.7 hours in March to 14.3 in May.
Summer: June to August
Average highs peak at 96°F in July, between 87°F in June and 94°F in August, with average lows between 58°F and 63°F. The average high is 90°F or hotter in July and August. Together the three months average 1.3 inches of precipitation, about 3% of the yearly total and less than in any other season. Daylight is at its longest, about 14.9 hours in June.
Fall: September to November
Average highs fall from 89°F in September to 61°F in November, with average lows between 41°F and 57°F. Together the three months average 7.6 inches of precipitation, about 16% of the yearly total. Daylight shortens from about 12.3 hours in September to 9.7 in November.
What the National Park Service says about the weather
Whiskeytown NRA is in a Mediterranean climate, which means hot, dry summers followed by cool, wet winters. Summer temperatures often reach the upper 90's to lower 100 degrees Fahrenheit, as well as the occasional thunderstorm. Winter brings snow to the upper elevations (only occasionally down to the lake level of 1,200'), and rain and ice. See the park weather page for the current weather.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Whiskeytown
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 40.61°N, 122.60°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Whiskeytown National Recreation Area →
Weather and crowds together
July is both the warmest month and the busiest, with about 2.1× the visitors of the park's average month. December is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Whiskeytown National Recreation Area. For hotels, cabins and rentals close to the park, see where to stay near Whiskeytown.
Where to stay near Whiskeytown
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Top-rated places to stay near Whiskeytown
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Frequently Asked Questions
July is the warmest month at Whiskeytown National Recreation Area, with an average high of 96°F and an average low of 63°F. That is the 1991–2020 average at the nearest long-record NOAA station, 2.6 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
December is the coldest month at Whiskeytown National Recreation Area, with an average low of 36°F and an average high of 53°F, based on NOAA 1991–2020 climate normals.
December is the wettest month, with about 8.6 inches of precipitation. August is the driest, at about 0.2 inches. The station records about 47.1 inches of precipitation in an average year.
Daylight at Whiskeytown National Recreation Area runs from about 9.1 hours a day in December to about 14.9 hours in June, computed from the park's latitude.
Weather at nearby parks
63 mi away · warmest in July (79°F)
91 mi away · warmest in September (69°F)
97 mi away · warmest in July (86°F)
109 mi away · warmest in July (86°F)
111 mi away · warmest in July (94°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00004222), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.