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Weather in Onyx, CA · National Weather Service + NOAA

Onyx has hot summers

Onyx has mild winters and hot summers, with very little rain. A typical July afternoon reaches 99°, a January night drops to 31°, and snow is almost unheard of. A typical November afternoon reaches 67°, and nights fall to 36°.

Winter 59°/31°Spring 74°/43°Summer 96°/61°Fall 79°/45°
Right now
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Sunrise 9:17 am · sunset 7:55 pm

Getting the latest forecast from the National Weather Service…

What stands out about Onyx’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Hot summersJuly afternoons average 99°, hotter than 99% of U.S. towns.Snow is rareAbout 0.5 inches in a normal year, so most winters see none.A dry climateJust 8 inches of rain and melted snow a year, less than 99% of U.S. towns.Plenty of 90° daysAbout 114 days a year reach 90°.
A normal year

Where today sits in Onyx’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
59° / 31°
Snow is rare
Spring
74° / 43°
Last frost around Apr 5
Summer
96° / 61°
114 days reach 90° in a normal year
Fall now
79° / 45°
First frost around Nov 3
Todayis the usual first frost
Best months to be outside
AprMayOct
Highs of 62–84° and lows of 40° or more
How much snow does Onyx get?Almost none.When is it wettest?February, with 1.7 inches.Is it warmer than it used to be?+1.7° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Onyx.

Town Square →
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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Onyx itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Inyokern, CA (23 mi, snow) and South Lake Fs, CA (8 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.