Susanville weather by month
What a typical year looks like in Susanville, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at SUSANVILLE 2SW, 4 km from Susanville; records cover 1895–2026.
The year at a glance
- Precipitation a year
- 13 in331 mm
- Snow a year
- Rare
- Last spring freeze
- May 18
- First fall freeze
- Oct 2
- Heating degree days
- 5,834
- Cooling degree days
- 456
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 7°−14° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Susanville in January
Highs average 43°6° and lows 22°−5°, with 2.4 in62 mm of precipitation in a typical January.
- Record high
- 68°20° (2003)
- Record low
- −22°−30° (1952)
- Heating degree days
- 1008
- Cooling degree days
- 0
Susanville in February
Highs average 48°9° and lows 26°−4°, with 2.3 in59 mm of precipitation in a typical February.
- Record high
- 69°21° (1977)
- Record low
- −23°−31° (1956)
- Heating degree days
- 795
- Cooling degree days
- 0
Susanville in March
Highs average 54°12° and lows 30°−1°, with 1.7 in42 mm of precipitation in a typical March.
- Record high
- 82°28° (2026)
- Record low
- −4°−20° (1952)
- Heating degree days
- 716
- Cooling degree days
- 0
Susanville in April
Highs average 61°16° and lows 34°1°, with 0.49 in12 mm of precipitation in a typical April.
- Record high
- 90°32° (1931)
- Record low
- 10°−12° (2023)
- Heating degree days
- 535
- Cooling degree days
- 0
Susanville in May
Highs average 69°21° and lows 40°5°, with 0.82 in21 mm of precipitation in a typical May.
- Record high
- 96°36° (1914)
- Record low
- 20°−7° (1948)
- Heating degree days
- 326
- Cooling degree days
- 8
Susanville in June
Highs average 79°26° and lows 47°8°, with 0.37 in9.4 mm of precipitation in a typical June.
- Record high
- 102°39° (1914)
- Record low
- 25°−4° (1952)
- Heating degree days
- 120
- Cooling degree days
- 58
Susanville in July
Highs average 88°31° and lows 53°12°, with 0.21 in5.3 mm of precipitation in a typical July.
- Record high
- 106°41° (1928)
- Record low
- 15°−9° (2026)
- Heating degree days
- 16
- Cooling degree days
- 188
Susanville in August
Highs average 87°30° and lows 52°11°, with 0.11 in2.8 mm of precipitation in a typical August.
- Record high
- 105°41° (1929)
- Record low
- 31°−1° (1952)
- Heating degree days
- 20
- Cooling degree days
- 153
Susanville in September
Highs average 80°27° and lows 45°7°, with 0.24 in6.1 mm of precipitation in a typical September.
- Record high
- 101°38° (1929)
- Record low
- 18°−8° (1950)
- Heating degree days
- 117
- Cooling degree days
- 47
Susanville in OctoberThis month
Highs average 67°19° and lows 36°2°, with 0.97 in25 mm of precipitation in a typical October.
- Record high
- 90°32° (1933)
- Record low
- 12°−11° (2019)
- Heating degree days
- 422
- Cooling degree days
- 2
Susanville in November
Highs average 52°11° and lows 28°−2°, with 1.5 in38 mm of precipitation in a typical November.
- Record high
- 83°28° (1896)
- Record low
- −1°−18° (1985)
- Heating degree days
- 750
- Cooling degree days
- 0
Susanville in December
Highs average 43°6° and lows 22°−5°, with 1.9 in48 mm of precipitation in a typical December.
- Record high
- 65°18° (1917)
- Record low
- −22°−30° (1972)
- Heating degree days
- 1009
- Cooling degree days
- 0