California weather by month
What a typical year looks like in California, Maryland: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Patuxent River NAS, 7 km from California; records cover 1945–2026.
The year at a glance
- Precipitation a year
- 45.3 in1151 mm
- Snow a year
- 13 in32 cm
- Last spring freeze
- Mar 27
- First fall freeze
- Nov 10
- Heating degree days
- 3,926
- Cooling degree days
- 1,508
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 16°−9° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
California in January
Highs average 45°7° and lows 30°−1°, with 2.9 in74 mm of precipitation and 4 in10 cm of snow in a typical January.
- Record high
- 82°28° (2002)
- Record low
- −3°−19° (1965)
- Heating degree days
- 854
- Cooling degree days
- 0
California in February
Highs average 48°9° and lows 31°−1°, with 2.8 in72 mm of precipitation and 6 in15 cm of snow in a typical February.
- Record high
- 81°27° (1985)
- Record low
- −2°−19° (2015)
- Heating degree days
- 724
- Cooling degree days
- 0
California in March
Highs average 55°13° and lows 37°3°, with 4 in102 mm of precipitation and 1.3 in3.3 cm of snow in a typical March.
- Record high
- 88°31° (1989)
- Record low
- 9°−13° (2015)
- Heating degree days
- 589
- Cooling degree days
- 3
California in April
Highs average 66°19° and lows 47°8°, with 3.7 in93 mm of precipitation in a typical April.
- Record high
- 93°34° (1990)
- Record low
- 25°−4° (2016)
- Heating degree days
- 280
- Cooling degree days
- 27
California in May
Highs average 75°24° and lows 57°14°, with 3.7 in93 mm of precipitation in a typical May.
- Record high
- 100°38° (1996)
- Record low
- 36°2° (1966)
- Heating degree days
- 81
- Cooling degree days
- 111
California in June
Highs average 83°28° and lows 66°19°, with 4.3 in108 mm of precipitation in a typical June.
- Record high
- 104°40° (2025)
- Record low
- 44°7° (1997)
- Heating degree days
- 6
- Cooling degree days
- 297
California in July
Highs average 87°31° and lows 71°22°, with 4.5 in114 mm of precipitation in a typical July.
- Record high
- 104°40° (2010)
- Record low
- 54°12° (1997)
- Heating degree days
- 0
- Cooling degree days
- 437
California in August
Highs average 85°30° and lows 69°21°, with 4.7 in118 mm of precipitation in a typical August.
- Record high
- 103°39° (1983)
- Record low
- 52°11° (1985)
- Heating degree days
- 0
- Cooling degree days
- 383
California in September
Highs average 79°26° and lows 63°17°, with 4.2 in105 mm of precipitation in a typical September.
- Record high
- 99°37° (1983)
- Record low
- 44°7° (2001)
- Heating degree days
- 17
- Cooling degree days
- 205
California in OctoberThis month
Highs average 69°21° and lows 52°11°, with 4 in102 mm of precipitation in a typical October.
- Record high
- 100°38° (2019)
- Record low
- 30°−1° (1965)
- Heating degree days
- 187
- Cooling degree days
- 41
California in November
Highs average 58°15° and lows 41°5°, with 3.1 in78 mm of precipitation in a typical November.
- Record high
- 85°29° (1968)
- Record low
- 16°−9° (1955)
- Heating degree days
- 462
- Cooling degree days
- 4
California in December
Highs average 50°10° and lows 34°1°, with 3.5 in90 mm of precipitation and 1.3 in3.3 cm of snow in a typical December.
- Record high
- 81°27° (1998)
- Record low
- 6°−14° (1983)
- Heating degree days
- 726
- Cooling degree days
- 0