Somis weather by month
What a typical year looks like in Somis, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Oxnard WFO, 14 km from Somis; records cover 1923–2026.
The year at a glance
- Precipitation a year
- 14.7 in373 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- 1,455
- Cooling degree days
- 570
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 37°3° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Somis in January
Highs average 69°20° and lows 46°8°, with 3.8 in96 mm of precipitation in a typical January.
- Record high
- 94°34° (2003)
- Record low
- 26°−3° (1937)
- Heating degree days
- 252
- Cooling degree days
- 13
Somis in February
Highs average 68°20° and lows 46°8°, with 3.5 in89 mm of precipitation in a typical February.
- Record high
- 91°33° (1930)
- Record low
- 28°−2° (1929)
- Heating degree days
- 225
- Cooling degree days
- 10
Somis in March
Highs average 69°21° and lows 48°9°, with 2.3 in58 mm of precipitation in a typical March.
- Record high
- 96°36° (2026)
- Record low
- 31°−1° (1966)
- Heating degree days
- 217
- Cooling degree days
- 10
Somis in April
Highs average 71°22° and lows 49°10°, with 0.75 in19 mm of precipitation in a typical April.
- Record high
- 100°38° (1989)
- Record low
- 31°−1° (1933)
- Heating degree days
- 164
- Cooling degree days
- 15
Somis in May
Highs average 72°22° and lows 53°11°, with 0.33 in8.4 mm of precipitation in a typical May.
- Record high
- 98°37° (1970)
- Record low
- 34°1° (1927)
- Heating degree days
- 101
- Cooling degree days
- 12
Somis in June
Highs average 75°24° and lows 57°14°, with 0.04 in1 mm of precipitation in a typical June.
- Record high
- 102°39° (1981)
- Record low
- 37°3° (1933)
- Heating degree days
- 25
- Cooling degree days
- 42
Somis in July
Highs average 78°25° and lows 60°15°, with 0.03 in0.8 mm of precipitation in a typical July.
- Record high
- 96°36° (1930)
- Record low
- 42°6° (1924)
- Heating degree days
- 2
- Cooling degree days
- 120
Somis in August
Highs average 79°26° and lows 59°15°, with 0.01 in0.3 mm of precipitation in a typical August.
- Record high
- 97°36° (1955)
- Record low
- 43°6° (1926)
- Heating degree days
- 2
- Cooling degree days
- 130
Somis in September
Highs average 79°26° and lows 58°15°, with 0.09 in2.3 mm of precipitation in a typical September.
- Record high
- 105°41° (2016)
- Record low
- 40°4° (1933)
- Heating degree days
- 7
- Cooling degree days
- 108
Somis in OctoberThis month
Highs average 78°25° and lows 55°13°, with 0.53 in13 mm of precipitation in a typical October.
- Record high
- 104°40° (2017)
- Record low
- 35°2° (1924)
- Heating degree days
- 43
- Cooling degree days
- 77
Somis in November
Highs average 73°23° and lows 49°9°, with 1 in26 mm of precipitation in a typical November.
- Record high
- 98°37° (1976)
- Record low
- 28°−2° (1938)
- Heating degree days
- 152
- Cooling degree days
- 26
Somis in December
Highs average 68°20° and lows 45°7°, with 2.3 in59 mm of precipitation in a typical December.
- Record high
- 96°36° (1958)
- Record low
- 28°−2° (1924)
- Heating degree days
- 265
- Cooling degree days
- 7