Updated October 2026
César E. Chávez National Monument Weather by Month
César E. Chávez National Monument is warmest in August, when the nearest NOAA climate station averages a high of 86°F and a low of 57°F, and coldest in December, with an average high of 51°F and an average low of 31°F. February is the wettest month, with about 3 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, 11.7 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in César E. Chávez National Monument can differ from these, particularly with elevation.
Warmest month
Aug
86°F avg high
Coldest month
Dec
31°F avg low
Wettest month
Feb
3.0 in avg
Longest days
Jun
14.4 h of daylight
Average weather at César E. Chávez by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 52°F | 32°F | 2.4 in | 9.9 h |
| February | 53°F | 31°F | 3.0 in | 10.7 h |
| March | 57°F | 34°F | 2.0 in | 11.7 h |
| April | 61°F | 37°F | 0.8 in | 12.9 h |
| May | 69°F | 44°F | 0.4 in | 13.9 h |
| June | 79°F | 52°F | 0.1 in | 14.4 h |
| July | 86°F | 58°F | 0.3 in | 14.2 h |
| August | 86°F | 57°F | 0.1 in | 13.3 h |
| September | 81°F | 51°F | 0.2 in | 12.2 h |
| October | 71°F | 43°F | 0.5 in | 11.1 h |
| November | 59°F | 37°F | 0.9 in | 10.1 h |
| December | 51°F | 31°F | 2.1 in | 9.6 h |
| Year total | 12.8 in |
NOAA 1991–2020 climate normals from station USC00048829, 11.7 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded César E. Chávez is at that time of year.
César E. Chávez weather by season
Winter: December to February
Average highs hold near 52°F in all three months, with average lows near 31°F. The average low is at or below freezing in all three months. Together the three months average 7.5 inches of precipitation, about 59% of the yearly total and more than in any other season. Daylight is at its shortest, about 9.6 hours in December.
Spring: March to May
Average highs climb from 57°F in March to 69°F in May, with average lows between 34°F and 44°F. Together the three months average 3.2 inches of precipitation, about 25% of the yearly total. Daylight lengthens from about 11.7 hours in March to 13.9 in May.
Summer: June to August
Average highs climb from 79°F in June to 86°F in August, with average lows between 52°F and 58°F. Together the three months average 0.5 inches of precipitation, about 4% of the yearly total and less than in any other season. Daylight is at its longest, about 14.4 hours in June.
Fall: September to November
Average highs fall from 81°F in September to 59°F in November, with average lows between 37°F and 51°F. Together the three months average 1.6 inches of precipitation, about 13% of the yearly total. Daylight shortens from about 12.2 hours in September to 10.1 in November.
What the National Park Service says about the weather
The climate in this area is mild, with warm, dry summers and cool winters. The Tehachapi Mountains are quite warm and sunny in summer, with temperatures typically around 90° F but occasionally exceeding 100° F during July, the warmest month. In winter, temperatures range between 30°-50° F. Frosty mornings are common, and roads may be icy. Before you visit, check the local weather forecast below. Weather can change rapidly.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for César E. Chávez
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 35.23°N, 118.56°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 César E. Chávez National Monument →
Weather and crowds together
August, the warmest month, sees about 0.9× the visitors of the park's average month. April is the busiest month of the year and December the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit César E. Chávez National Monument. For hotels, cabins and rentals close to the park, see where to stay near César E. Chávez.
Where to stay near César E. Chávez
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Frequently Asked Questions
August is the warmest month at César E. Chávez National Monument, with an average high of 86°F and an average low of 57°F. That is the 1991–2020 average at the nearest long-record NOAA station, 11.7 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
December is the coldest month at César E. Chávez National Monument, with an average low of 31°F and an average high of 51°F, based on NOAA 1991–2020 climate normals.
February is the wettest month, with about 3 inches of precipitation. June and August are the driest, at about 0.1 inches each. The station records about 12.8 inches of precipitation in an average year.
Daylight at César E. Chávez National Monument runs from about 9.6 hours a day in December to about 14.4 hours in June, computed from the park's latitude.
Weather at nearby parks
79 mi away · warmest in August (97°F)
106 mi away · warmest in July (102°F)
115 mi away · warmest in August (72°F)
118 mi away · warmest in July (115°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00048829), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (2013–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.