Holtville weather by month
What a typical year looks like in Holtville, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at IMPERIAL COUNTY AP, 19 km from Holtville; records cover 1962–2026.
The year at a glance
- Precipitation a year
- 2.4 in60 mm
- Snow a year
- Rare
- Last spring freeze
- Feb 3
- First fall freeze
- Dec 16
- Heating degree days
- 966
- Cooling degree days
- 4,162
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 115°46° (cooling, 1%).
Month by month
Holtville in January
Highs average 71°21° and lows 42°5°, with 0.41 in10 mm of precipitation in a typical January.
- Record high
- 90°32° (1971)
- Record low
- 21°−6° (1963)
- Heating degree days
- 280
- Cooling degree days
- 1
Holtville in February
Highs average 74°23° and lows 45°7°, with 0.38 in9.7 mm of precipitation in a typical February.
- Record high
- 97°36° (2026)
- Record low
- 22°−6° (2011)
- Heating degree days
- 169
- Cooling degree days
- 14
Holtville in March
Highs average 80°27° and lows 51°10°, with 0.29 in7.4 mm of precipitation in a typical March.
- Record high
- 107°42° (2026)
- Record low
- 28°−2° (1971)
- Heating degree days
- 73
- Cooling degree days
- 84
Holtville in April
Highs average 86°30° and lows 56°13°, with 0.08 in2 mm of precipitation in a typical April.
- Record high
- 106°41° (2007)
- Record low
- 38°3° (1975)
- Heating degree days
- 15
- Cooling degree days
- 192
Holtville in May
Highs average 94°35° and lows 62°17°, with 0.07 in1.8 mm of precipitation in a typical May.
- Record high
- 112°44° (2008)
- Record low
- 43°6° (1967)
- Heating degree days
- 1
- Cooling degree days
- 410
Holtville in June
Highs average 104°40° and lows 70°21°, with 0 in0 mm of precipitation in a typical June.
- Record high
- 122°50° (2017)
- Record low
- 53°12° (1971)
- Heating degree days
- 0
- Cooling degree days
- 656
Holtville in July
Highs average 108°42° and lows 78°26°, with 0.11 in2.8 mm of precipitation in a typical July.
- Record high
- 121°49° (2005)
- Record low
- 63°17° (1978)
- Heating degree days
- 0
- Cooling degree days
- 871
Holtville in August
Highs average 108°42° and lows 79°26°, with 0.15 in3.8 mm of precipitation in a typical August.
- Record high
- 119°48° (2021)
- Record low
- 61°16° (1968)
- Heating degree days
- 0
- Cooling degree days
- 885
Holtville in September
Highs average 102°39° and lows 72°22°, with 0.18 in4.6 mm of precipitation in a typical September.
- Record high
- 121°49° (2020)
- Record low
- 54°12° (1965)
- Heating degree days
- 0
- Cooling degree days
- 666
Holtville in OctoberThis month
Highs average 90°32° and lows 60°16°, with 0.19 in4.8 mm of precipitation in a typical October.
- Record high
- 110°43° (1980)
- Record low
- 32°0° (1971)
- Heating degree days
- 7
- Cooling degree days
- 323
Holtville in November
Highs average 78°26° and lows 48°9°, with 0.18 in4.6 mm of precipitation in a typical November.
- Record high
- 101°38° (2008)
- Record low
- 30°−1° (1976)
- Heating degree days
- 108
- Cooling degree days
- 59
Holtville in December
Highs average 69°20° and lows 41°5°, with 0.34 in8.6 mm of precipitation in a typical December.
- Record high
- 87°31° (1964)
- Record low
- 24°−4° (1978)
- Heating degree days
- 313
- Cooling degree days
- 1