Calistoga, CA

Climate overview — based on NOAA 1991-2020 normals from CALISTOGA, 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

Calistoga has an annual average temperature of 60.1°F with about 38.6 inches of precipitation per year. The warmest month is July (average high 89.5°F), and the coldest is December (average low 38.5°F). December is typically the wettest month (7.95 in) and July the driest (0.01 in).

Annual swing
24°F
warmest to coldest month
Heating need
2,418
Cooling need
666

Best time to visit Calistoga

Full guide →

Climate change signal

All-time records →

50 of 366 (13.7%) of Calistoga'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.

1900s
0
1910s
17
1930s
55
1940s
0
1950s
0
1960s
0
1970s
0
1980s
81
1990s
77
2000s
59
2010s
44
2020s
33

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 58.8°F 39.4°F 49.1°F 7.94 in 12
February 61.7°F 41.1°F 51.4°F 7.07 in 11
March 65.7°F 42.8°F 54.2°F 5.89 in 9
April 70.3°F 44.3°F 57.3°F 2.32 in 6
May 76.5°F 48.5°F 62.5°F 1.37 in 4
June 84.5°F 52.7°F 68.6°F 0.29 in 1
July 89.5°F 54.7°F 72.1°F 0.01 in 0
August 89.1°F 54.3°F 71.7°F 0.03 in 0
September 87.4°F 52.2°F 69.8°F 0.12 in 1
October 78.6°F 47.4°F 63.0°F 1.83 in 4
November 65.9°F 41.7°F 53.8°F 3.76 in 6
December 57.7°F 38.5°F 48.1°F 7.95 in 12

Climate twins of Calistoga

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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