Berkeley weather by month
What a typical year looks like in Berkeley, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at San Francisco Downtown, 16 km from Berkeley; records cover 1874–2026.
The year at a glance
- Precipitation a year
- 22.9 in581 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- 2,781
- Cooling degree days
- 121
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 40°4° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Berkeley in January
Highs average 58°14° and lows 47°8°, with 4.4 in112 mm of precipitation in a typical January.
- Record high
- 79°26° (1962)
- Record low
- 29°−2° (1888)
- Heating degree days
- 397
- Cooling degree days
- 0
Berkeley in February
Highs average 60°16° and lows 48°9°, with 4.4 in111 mm of precipitation in a typical February.
- Record high
- 81°27° (1986)
- Record low
- 31°−1° (1989)
- Heating degree days
- 304
- Cooling degree days
- 0
Berkeley in March
Highs average 62°17° and lows 49°9°, with 3.2 in80 mm of precipitation in a typical March.
- Record high
- 90°32° (2026)
- Record low
- 33°1° (1896)
- Heating degree days
- 297
- Cooling degree days
- 2
Berkeley in April
Highs average 63°17° and lows 50°10°, with 1.6 in41 mm of precipitation in a typical April.
- Record high
- 94°34° (1989)
- Record low
- 40°4° (1875)
- Heating degree days
- 265
- Cooling degree days
- 5
Berkeley in May
Highs average 64°18° and lows 51°11°, with 0.7 in18 mm of precipitation in a typical May.
- Record high
- 97°36° (1887)
- Record low
- 42°6° (1906)
- Heating degree days
- 232
- Cooling degree days
- 8
Berkeley in June
Highs average 67°19° and lows 53°12°, with 0.2 in5.1 mm of precipitation in a typical June.
- Record high
- 103°39° (2000)
- Record low
- 46°8° (1908)
- Heating degree days
- 169
- Cooling degree days
- 12
Berkeley in July
Highs average 66°19° and lows 54°12°, with 0.01 in0.3 mm of precipitation in a typical July.
- Record high
- 99°37° (1931)
- Record low
- 47°8° (1893)
- Heating degree days
- 152
- Cooling degree days
- 7
Berkeley in August
Highs average 68°20° and lows 56°13°, with 0.06 in1.5 mm of precipitation in a typical August.
- Record high
- 98°37° (2010)
- Record low
- 46°8° (1903)
- Heating degree days
- 118
- Cooling degree days
- 16
Berkeley in September
Highs average 70°21° and lows 56°13°, with 0.1 in2.5 mm of precipitation in a typical September.
- Record high
- 106°41° (2017)
- Record low
- 47°8° (1900)
- Heating degree days
- 97
- Cooling degree days
- 34
Berkeley in OctoberThis month
Highs average 70°21° and lows 54°12°, with 0.94 in24 mm of precipitation in a typical October.
- Record high
- 102°39° (1987)
- Record low
- 43°6° (1935)
- Heating degree days
- 123
- Cooling degree days
- 33
Berkeley in November
Highs average 64°18° and lows 51°10°, with 2.6 in66 mm of precipitation in a typical November.
- Record high
- 86°30° (1966)
- Record low
- 38°3° (1896)
- Heating degree days
- 238
- Cooling degree days
- 4
Berkeley in December
Highs average 58°14° and lows 47°8°, with 4.8 in121 mm of precipitation in a typical December.
- Record high
- 76°24° (1958)
- Record low
- 27°−3° (1932)
- Heating degree days
- 389
- Cooling degree days
- 0