University of California-Santa Barbara weather by month
What a typical year looks like in University of California-Santa Barbara, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at SANTA BARBARA MUNI AP, 1 km from University of California-Santa Barbara; records cover 1941–2026.
The year at a glance
- Precipitation a year
- 17.3 in438 mm
- Snow a year
- Rare
- Last spring freeze
- Jan 24
- First fall freeze
- Dec 6
- Heating degree days
- 2,292
- Cooling degree days
- 215
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 32°0° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
University of California-Santa Barbara in January
Highs average 64°18° and lows 41°5°, with 3.8 in98 mm of precipitation in a typical January.
- Record high
- 87°31° (2021)
- Record low
- 24°−4° (2007)
- Heating degree days
- 380
- Cooling degree days
- 0
University of California-Santa Barbara in February
Highs average 64°18° and lows 44°6°, with 3.9 in98 mm of precipitation in a typical February.
- Record high
- 87°31° (2016)
- Record low
- 25°−4° (1989)
- Heating degree days
- 316
- Cooling degree days
- 0
University of California-Santa Barbara in March
Highs average 66°19° and lows 46°8°, with 3.1 in79 mm of precipitation in a typical March.
- Record high
- 94°34° (1972)
- Record low
- 30°−1° (1966)
- Heating degree days
- 280
- Cooling degree days
- 2
University of California-Santa Barbara in April
Highs average 68°20° and lows 48°9°, with 0.91 in23 mm of precipitation in a typical April.
- Record high
- 96°36° (1989)
- Record low
- 33°1° (1945)
- Heating degree days
- 217
- Cooling degree days
- 6
University of California-Santa Barbara in May
Highs average 69°21° and lows 51°11°, with 0.42 in11 mm of precipitation in a typical May.
- Record high
- 101°38° (1968)
- Record low
- 38°3° (1991)
- Heating degree days
- 157
- Cooling degree days
- 10
University of California-Santa Barbara in June
Highs average 70°21° and lows 55°13°, with 0.11 in2.8 mm of precipitation in a typical June.
- Record high
- 109°43° (1990)
- Record low
- 41°5° (1943)
- Heating degree days
- 91
- Cooling degree days
- 13
University of California-Santa Barbara in July
Highs average 73°23° and lows 58°15°, with 0.02 in0.5 mm of precipitation in a typical July.
- Record high
- 109°43° (1985)
- Record low
- 45°7° (1944)
- Heating degree days
- 29
- Cooling degree days
- 51
University of California-Santa Barbara in August
Highs average 75°24° and lows 58°14°, with 0.01 in0.3 mm of precipitation in a typical August.
- Record high
- 105°41° (1972)
- Record low
- 43°6° (1941)
- Heating degree days
- 23
- Cooling degree days
- 62
University of California-Santa Barbara in September
Highs average 74°24° and lows 56°13°, with 0.07 in1.8 mm of precipitation in a typical September.
- Record high
- 104°40° (1979)
- Record low
- 42°6° (1941)
- Heating degree days
- 44
- Cooling degree days
- 44
University of California-Santa Barbara in OctoberThis month
Highs average 73°23° and lows 51°11°, with 0.73 in19 mm of precipitation in a typical October.
- Record high
- 103°39° (1987)
- Record low
- 31°−1° (1971)
- Heating degree days
- 112
- Cooling degree days
- 24
University of California-Santa Barbara in November
Highs average 69°21° and lows 44°7°, with 1.3 in32 mm of precipitation in a typical November.
- Record high
- 97°36° (1992)
- Record low
- 30°−1° (1958)
- Heating degree days
- 251
- Cooling degree days
- 3
University of California-Santa Barbara in December
Highs average 64°18° and lows 40°5°, with 2.9 in74 mm of precipitation in a typical December.
- Record high
- 89°32° (1958)
- Record low
- 20°−7° (1990)
- Heating degree days
- 392
- Cooling degree days
- 0