Ukiah, CA

Climate overview — based on NOAA 1991-2020 normals from UKIAH, CA US.

Csa Hot-summer Mediterranean climate 9a USDA hardiness Zone 9a

Year-round temperatures (°F)

30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Ukiah has an annual average temperature of 58.9°F with about 38.9 inches of precipitation per year. The warmest month is July (average high 91.1°F), and the coldest is December (average low 36.2°F). December is typically the wettest month (7.96 in) and July the driest (0.00 in).

Annual swing
27.5°F
warmest to coldest month
Heating need
2,856
Cooling need
666

Best time to visit Ukiah

Full guide →

Climate change signal

All-time records →

0 of 366 (0%) of Ukiah's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s
5
1900s
28
1910s
42
1920s
50
1930s
55
1940s
26
1950s
54
1960s
37
1970s
32
1980s
26
1990s
6
2000s
5
2010s
0

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 56.9°F 37.4°F 47.1°F 7.39 in 13
February 60.2°F 38.3°F 49.2°F 6.98 in 12
March 64.8°F 39.7°F 52.3°F 5.33 in 10
April 69.6°F 42.4°F 56.0°F 2.81 in 8
May 76.3°F 47.3°F 61.8°F 1.71 in 5
June 82.8°F 51.9°F 67.3°F 0.41 in 2
July 91.1°F 55.6°F 73.4°F 0.00 in 0
August 90.6°F 54.2°F 72.4°F 0.05 in 0
September 87.0°F 51.3°F 69.1°F 0.20 in 1
October 76.7°F 45.5°F 61.1°F 1.95 in 4
November 62.8°F 40.0°F 51.4°F 4.11 in 10
December 55.6°F 36.2°F 45.9°F 7.96 in 14

Climate twins of Ukiah

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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