Redwood Valley weather by month
What a typical year looks like in Redwood Valley, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Ukiah Municipal Airport, 16 km from Redwood Valley; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 34.8 in885 mm
- Snow a year
- Rare
- Last spring freeze
- Mar 6
- First fall freeze
- Nov 15
- Heating degree days
- 2,880
- Cooling degree days
- 1,005
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 26°−3° (heating, 99%) and 105°41° (cooling, 1%).
Month by month
Redwood Valley in January
Highs average 58°15° and lows 37°3°, with 6.7 in170 mm of precipitation in a typical January.
- Record high
- 82°28° (1984)
- Record low
- 12°−11° (1898)
- Heating degree days
- 535
- Cooling degree days
- 0
Redwood Valley in February
Highs average 61°16° and lows 39°4°, with 6.3 in159 mm of precipitation in a typical February.
- Record high
- 86°30° (1932)
- Record low
- 18°−8° (1903)
- Heating degree days
- 423
- Cooling degree days
- 0
Redwood Valley in March
Highs average 65°18° and lows 41°5°, with 5.3 in135 mm of precipitation in a typical March.
- Record high
- 94°34° (2026)
- Record low
- 22°−6° (1923)
- Heating degree days
- 380
- Cooling degree days
- 1
Redwood Valley in April
Highs average 69°21° and lows 43°6°, with 2.6 in65 mm of precipitation in a typical April.
- Record high
- 98°37° (1926)
- Record low
- 23°−5° (1906)
- Heating degree days
- 278
- Cooling degree days
- 7
Redwood Valley in May
Highs average 78°25° and lows 48°9°, with 1.2 in30 mm of precipitation in a typical May.
- Record high
- 106°41° (2021)
- Record low
- 28°−2° (1919)
- Heating degree days
- 120
- Cooling degree days
- 50
Redwood Valley in June
Highs average 86°30° and lows 52°11°, with 0.34 in8.6 mm of precipitation in a typical June.
- Record high
- 114°46° (1961)
- Record low
- 35°2° (1896)
- Heating degree days
- 29
- Cooling degree days
- 148
Redwood Valley in July
Highs average 94°34° and lows 56°13°, with 0.01 in0.3 mm of precipitation in a typical July.
- Record high
- 117°47° (2024)
- Record low
- 39°4° (1898)
- Heating degree days
- 1
- Cooling degree days
- 312
Redwood Valley in August
Highs average 94°34° and lows 55°13°, with 0.07 in1.8 mm of precipitation in a typical August.
- Record high
- 114°46° (1908)
- Record low
- 38°3° (1918)
- Heating degree days
- 1
- Cooling degree days
- 284
Redwood Valley in September
Highs average 89°32° and lows 51°10°, with 0.16 in4.1 mm of precipitation in a typical September.
- Record high
- 117°47° (2022)
- Record low
- 30°−1° (1902)
- Heating degree days
- 20
- Cooling degree days
- 164
Redwood Valley in OctoberThis month
Highs average 79°26° and lows 45°7°, with 1.8 in45 mm of precipitation in a typical October.
- Record high
- 107°42° (2024)
- Record low
- 24°−4° (1919)
- Heating degree days
- 130
- Cooling degree days
- 39
Redwood Valley in November
Highs average 65°18° and lows 40°4°, with 3.5 in90 mm of precipitation in a typical November.
- Record high
- 92°33° (1966)
- Record low
- 19°−7° (1919)
- Heating degree days
- 383
- Cooling degree days
- 0
Redwood Valley in December
Highs average 57°14° and lows 36°2°, with 6.9 in176 mm of precipitation in a typical December.
- Record high
- 84°29° (2006)
- Record low
- 13°−11° (1932)
- Heating degree days
- 580
- Cooling degree days
- 0