Rainbow weather by month
What a typical year looks like in Rainbow, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at VISTA, 21 km from Rainbow; records cover 1957–2026.
The year at a glance
- Precipitation a year
- 13.4 in340 mm
- Snow a year
- Rare
- Last spring freeze
- Feb 20
- First fall freeze
- Rare
- Heating degree days
- 1,595
- Cooling degree days
- 788
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 36°2° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Rainbow in January
Highs average 66°19° and lows 46°8°, with 2.9 in72 mm of precipitation in a typical January.
- Record high
- 94°34° (2021)
- Record low
- 21°−6° (1963)
- Heating degree days
- 293
- Cooling degree days
- 4
Rainbow in February
Highs average 65°19° and lows 46°8°, with 3.1 in79 mm of precipitation in a typical February.
- Record high
- 93°34° (1963)
- Record low
- 29°−2° (2018)
- Heating degree days
- 267
- Cooling degree days
- 4
Rainbow in March
Highs average 67°19° and lows 48°9°, with 2.1 in54 mm of precipitation in a typical March.
- Record high
- 96°36° (1988)
- Record low
- 25°−4° (2007)
- Heating degree days
- 238
- Cooling degree days
- 5
Rainbow in April
Highs average 69°21° and lows 50°10°, with 0.96 in24 mm of precipitation in a typical April.
- Record high
- 101°38° (1989)
- Record low
- 31°−1° (2008)
- Heating degree days
- 166
- Cooling degree days
- 13
Rainbow in May
Highs average 71°22° and lows 55°13°, with 0.35 in8.9 mm of precipitation in a typical May.
- Record high
- 101°38° (2014)
- Record low
- 32°0° (2003)
- Heating degree days
- 86
- Cooling degree days
- 27
Rainbow in June
Highs average 75°24° and lows 59°15°, with 0.09 in2.3 mm of precipitation in a typical June.
- Record high
- 108°42° (1985)
- Record low
- 42°6° (1967)
- Heating degree days
- 20
- Cooling degree days
- 64
Rainbow in July
Highs average 79°26° and lows 62°17°, with 0.1 in2.5 mm of precipitation in a typical July.
- Record high
- 107°42° (1985)
- Record low
- 44°7° (2004)
- Heating degree days
- 2
- Cooling degree days
- 174
Rainbow in August
Highs average 81°27° and lows 63°17°, with 0.03 in0.8 mm of precipitation in a typical August.
- Record high
- 106°41° (1998)
- Record low
- 41°5° (2004)
- Heating degree days
- 1
- Cooling degree days
- 216
Rainbow in September
Highs average 81°27° and lows 61°16°, with 0.16 in4.1 mm of precipitation in a typical September.
- Record high
- 107°42° (1978)
- Record low
- 39°4° (2007)
- Heating degree days
- 4
- Cooling degree days
- 179
Rainbow in OctoberThis month
Highs average 76°24° and lows 56°13°, with 0.59 in15 mm of precipitation in a typical October.
- Record high
- 107°42° (2017)
- Record low
- 36°2° (1971)
- Heating degree days
- 43
- Cooling degree days
- 78
Rainbow in November
Highs average 71°22° and lows 50°10°, with 1.1 in28 mm of precipitation in a typical November.
- Record high
- 97°36° (1966)
- Record low
- 33°1° (1975)
- Heating degree days
- 160
- Cooling degree days
- 22
Rainbow in December
Highs average 65°18° and lows 45°7°, with 1.9 in49 mm of precipitation in a typical December.
- Record high
- 90°32° (1979)
- Record low
- 23°−5° (2007)
- Heating degree days
- 315
- Cooling degree days
- 2