Alameda, CA

Climate overview — based on NOAA 1991-2020 normals from OAKLAND METRO INTL AP, CA US.

Csb Warm-summer Mediterranean climate 9b USDA hardiness Zone 9b

Year-round temperatures (°F)

40° 50° 60° 70° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Alameda has an annual average temperature of 58.1°F with about 18.7 inches of precipitation per year. The warmest month is September (average high 74.1°F), and the coldest is January (average low 42.0°F). December is typically the wettest month (3.84 in) and July the driest (0.00 in).

Pleasant months
6 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
14.9°F
warmest to coldest month
Heating need
2,487
Cooling need
0

Best time to visit Alameda

Full guide →

Climate change signal

All-time records →

100 of 366 (27.3%) of Alameda'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.

1940s
9
1950s
77
1960s
42
1970s
25
1980s
12
2000s
60
2010s
75
2020s
66

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 57.7°F 42.0°F 49.9°F 3.42 in 11
February 60.3°F 44.6°F 52.5°F 3.51 in 10
March 63.1°F 47.0°F 55.1°F 2.71 in 10
April 65.6°F 49.1°F 57.4°F 1.35 in 6
May 67.9°F 51.9°F 59.9°F 0.63 in 3
June 71.4°F 54.1°F 62.7°F 0.18 in 1
July 71.6°F 56.2°F 63.9°F 0.00 in 0
August 72.4°F 56.9°F 64.6°F 0.04 in 1
September 74.1°F 55.5°F 64.8°F 0.10 in 2
October 71.5°F 51.2°F 61.4°F 0.88 in 5
November 63.9°F 45.8°F 54.8°F 2.02 in 8
December 57.9°F 42.3°F 50.1°F 3.84 in 11

Climate twins of Alameda

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

Compare Alameda to another city