Updated October 2026
Chino Hills State Park: Weather by Month and When to Go
Chino Hills State Park is a state park in California. Average highs range from 71°F in December through February to 89°F in August.
Average highs sit between 60°F and 80°F in November through May. They run above 80°F in June through October. The figures are NOAA climate normals for 1991–2020, measured at a weather station 6 miles from the park.
Warmest average high
89°F
August
Coldest average low
48°F
December
Most precipitation
3.2 in
January
Longest days
14.3 h
June
Chino Hills State Park weather by month
| Month | Average high | Average low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 71°F | 49°F | 3.2 in | 10.0 h |
| February | 71°F | 49°F | 3.1 in | 10.8 h |
| March | 74°F | 51°F | 1.8 in | 11.8 h |
| April | 77°F | 54°F | 0.7 in | 12.8 h |
| May | 78°F | 58°F | 0.4 in | 13.8 h |
| June | 82°F | 62°F | 0.1 in | 14.3 h |
| July | 87°F | 66°F | 0.1 in | 14.1 h |
| August | 89°F | 66°F | 0.0 in | 13.3 h |
| September | 88°F | 64°F | 0.2 in | 12.2 h |
| October | 83°F | 59°F | 0.6 in | 11.1 h |
| November | 77°F | 53°F | 1.0 in | 10.2 h |
| December | 71°F | 48°F | 2.4 in | 9.8 h |
Temperature and precipitation figures are NOAA climate normals for 1991–2020 from station USC00040192, the nearest station with a complete set of temperature normals, 6 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. August is the warmest month, with an average high of 89°F and an average low of 66°F. December is the coldest month, with an average low of 48°F and an average high of 71°F.
- Precipitation. January is the wettest month, averaging 3.2 inches of precipitation, and August is the driest, at 0.0 inches. An average year brings about 13.6 inches in total.
- Snowfall. The station's snowfall normal is 0.0 inches in every month.
- Daylight. Days run from about 9.8 hours of daylight in December to 14.3 hours in June.
Camping, trails, maps and fees
Whether Chino Hills 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 Chino Hills 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 Chino Hills State Park
Where to stay near Chino Hills State Park
Hotels, cabins and vacation rentals near Chino Hills State Park, with live availability and prices.
Top-rated places to stay near Chino Hills State Park
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Frequently Asked Questions
August is the warmest month, with an average high of 89°F and an average low of 66°F. December is the coldest month, with an average low of 48°F and an average high of 71°F. These are NOAA 1991–2020 climate normals from a weather station 6 miles from the park.
Average highs sit between 60°F and 80°F in November through May. They run above 80°F in June through October.
January is the wettest month, averaging 3.2 inches of precipitation, and August is the driest, at 0.0 inches. An average year brings about 13.6 inches in total. The station's snowfall normal is 0.0 inches in every month.
Days run from about 9.8 hours of daylight in December to 14.3 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Santa Monica Mountains National Recreation Area60 miles away
- Cabrillo National Monument90 miles away
- César E. Chávez National Monument102 miles away
Nearby state parks
- Bolsa Chica State Beach22 miles away
- Huntington State Beach23 miles away
- Crystal Cove State Park23 miles away
- Doheny State Beach31 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.