Walnut, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Walnut now
Loading the National Weather Service forecast…
Walnut weather by the hour
Walnut weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Walnut.
This week in Walnut
Sunrise, sunset and moon in Walnut
What is the weather usually like in Walnut?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 94°F average high
- Decembercoldest month · 43°F average low
- 14.5 inprecipitation per year · 368 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Walnut: April–May and October–November, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station POMONA/FAIRPLEX, CA US (USC00047050), adjusted for the elevation of Walnut.
Walnut weather month by month
Sunrise and sunset in Walnut through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 6:55 AM | 5:06 PM | 10 h 11 min |
| February | 6:34 AM | 5:36 PM | 11 h 2 min |
| March | 7:00 AM | 7:00 PM | 12 h 0 min |
| April | 6:18 AM | 7:24 PM | 13 h 5 min |
| May | 5:48 AM | 7:47 PM | 13 h 59 min |
| June | 5:38 AM | 8:05 PM | 14 h 27 min |
| July | 5:50 AM | 8:04 PM | 14 h 14 min |
| August | 6:11 AM | 7:39 PM | 13 h 27 min |
| September | 6:33 AM | 6:59 PM | 12 h 25 min |
| October | 6:55 AM | 6:18 PM | 11 h 23 min |
| November | 6:22 AM | 4:49 PM | 10 h 26 min |
| December | 6:48 AM | 4:45 PM | 9 h 56 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Walnut?
Walnut has a hot semi-arid climate. The warmest month is August, with an average high of 94°F (34°C), and the coldest is December, with average lows of 43°F (6°C).
It gets about 14.5 inches (368 mm) of precipitation a year. The wettest month is February and the driest is July.
The best time to visit Walnut is April–May and October–November. At 561 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Walnut
Weather in towns near Walnut
Questions about the weather in Walnut
What is the hottest month in Walnut?
August, with an average high of 94°F (34°C).
What is the coldest month in Walnut?
December, with an average low of 43°F (6°C).
How much does it rain in Walnut?
About 14.5 inches (368 mm) a year; the wettest month is February.
Does it snow in Walnut?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Walnut?
April–May and October–November, when temperatures are most pleasant and rainy days are fewer.
What climate does Walnut have?
Hot semi-arid (Köppen BSh).
What is the weather like in Walnut in November?
Highs average 75°F and lows 49°F, with about 0.7 inches of precipitation.
What time is sunrise in Walnut?
Around 6:22 AM in mid-November, and sunset around 4:49 PM. Today’s exact times are shown above.
Where does this Walnut weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Walnut.
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