Jurupa Valley weather by month
What a typical year looks like in Jurupa Valley, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MARCH AFB, 23 km from Jurupa Valley; records cover 1949–2026.
The year at a glance
- Precipitation a year
- 10.7 in271 mm
- Snow a year
- Rare
- Last spring freeze
- Mar 4
- First fall freeze
- Nov 12
- Heating degree days
- 2,095
- Cooling degree days
- 1,484
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
Jurupa Valley in January
Highs average 66°19° and lows 37°3°, with 2.1 in52 mm of precipitation in a typical January.
- Record high
- 86°30° (2012)
- Record low
- 18°−8° (1963)
- Heating degree days
- 416
- Cooling degree days
- 0
Jurupa Valley in February
Highs average 66°19° and lows 38°3°, with 2.4 in62 mm of precipitation in a typical February.
- Record high
- 88°31° (2026)
- Record low
- 18°−8° (2018)
- Heating degree days
- 365
- Cooling degree days
- 0
Jurupa Valley in March
Highs average 71°22° and lows 40°5°, with 1.5 in38 mm of precipitation in a typical March.
- Record high
- 100°38° (2026)
- Record low
- 25°−4° (1967)
- Heating degree days
- 295
- Cooling degree days
- 1
Jurupa Valley in April
Highs average 74°23° and lows 44°7°, with 0.76 in19 mm of precipitation in a typical April.
- Record high
- 97°36° (1961)
- Record low
- 27°−3° (1970)
- Heating degree days
- 187
- Cooling degree days
- 9
Jurupa Valley in May
Highs average 80°27° and lows 51°10°, with 0.27 in6.9 mm of precipitation in a typical May.
- Record high
- 103°39° (1967)
- Record low
- 33°1° (1967)
- Heating degree days
- 64
- Cooling degree days
- 75
Jurupa Valley in June
Highs average 87°31° and lows 56°13°, with 0.07 in1.8 mm of precipitation in a typical June.
- Record high
- 111°44° (2016)
- Record low
- 39°4° (2011)
- Heating degree days
- 5
- Cooling degree days
- 197
Jurupa Valley in July
Highs average 94°35° and lows 62°16°, with 0.13 in3.3 mm of precipitation in a typical July.
- Record high
- 112°44° (2018)
- Record low
- 49°9° (1966)
- Heating degree days
- 0
- Cooling degree days
- 398
Jurupa Valley in August
Highs average 95°35° and lows 62°17°, with 0.36 in9.1 mm of precipitation in a typical August.
- Record high
- 110°43° (2020)
- Record low
- 48°9° (2011)
- Heating degree days
- 0
- Cooling degree days
- 412
Jurupa Valley in September
Highs average 92°33° and lows 59°15°, with 0.16 in4.1 mm of precipitation in a typical September.
- Record high
- 116°47° (2020)
- Record low
- 43°6° (2017)
- Heating degree days
- 4
- Cooling degree days
- 306
Jurupa Valley in OctoberThis month
Highs average 82°28° and lows 49°10°, with 0.47 in12 mm of precipitation in a typical October.
- Record high
- 108°42° (2024)
- Record low
- 34°1° (2019)
- Heating degree days
- 64
- Cooling degree days
- 80
Jurupa Valley in November
Highs average 72°22° and lows 41°5°, with 0.67 in17 mm of precipitation in a typical November.
- Record high
- 95°35° (2010)
- Record low
- 23°−5° (2010)
- Heating degree days
- 260
- Cooling degree days
- 6
Jurupa Valley in December
Highs average 65°18° and lows 37°3°, with 1.8 in45 mm of precipitation in a typical December.
- Record high
- 90°32° (1950)
- Record low
- 17°−8° (1968)
- Heating degree days
- 435
- Cooling degree days
- 0