Covina weather by month
What a typical year looks like in Covina, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mt Wilson Cbs, 23 km from Covina; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 32.2 in817 mm
- Snow a year
- Rare
- Last spring freeze
- May 15
- First fall freeze
- Nov 9
- Heating degree days
- 3,460
- Cooling degree days
- 1,071
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 23°−5° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Covina in January
Highs average 56°13° and lows 38°3°, with 7.7 in196 mm of precipitation in a typical January.
- Record high
- 77°25° (2003)
- Record low
- 9°−13° (1969)
- Heating degree days
- 554
- Cooling degree days
- 0
Covina in February
Highs average 55°13° and lows 37°3°, with 8.3 in210 mm of precipitation in a typical February.
- Record high
- 80°27° (1985)
- Record low
- 11°−12° (1962)
- Heating degree days
- 540
- Cooling degree days
- 0
Covina in March
Highs average 59°15° and lows 39°4°, with 5.1 in130 mm of precipitation in a typical March.
- Record high
- 83°28° (2007)
- Record low
- 14°−10° (1966)
- Heating degree days
- 497
- Cooling degree days
- 1
Covina in April
Highs average 63°17° and lows 42°5°, with 2.1 in52 mm of precipitation in a typical April.
- Record high
- 86°30° (1989)
- Record low
- 18°−8° (1963)
- Heating degree days
- 384
- Cooling degree days
- 6
Covina in May
Highs average 70°21° and lows 48°9°, with 1.1 in27 mm of precipitation in a typical May.
- Record high
- 92°33° (2000)
- Record low
- 22°−6° (1964)
- Heating degree days
- 238
- Cooling degree days
- 49
Covina in June
Highs average 79°26° and lows 58°14°, with 0.21 in5.3 mm of precipitation in a typical June.
- Record high
- 101°38° (2013)
- Record low
- 29°−2° (1950)
- Heating degree days
- 64
- Cooling degree days
- 154
Covina in July
Highs average 85°29° and lows 64°18°, with 0.21 in5.3 mm of precipitation in a typical July.
- Record high
- 102°39° (2007)
- Record low
- 38°3° (1974)
- Heating degree days
- 6
- Cooling degree days
- 295
Covina in August
Highs average 85°30° and lows 64°18°, with 0.01 in0.3 mm of precipitation in a typical August.
- Record high
- 101°38° (2010)
- Record low
- 37°3° (1959)
- Heating degree days
- 5
- Cooling degree days
- 299
Covina in September
Highs average 81°27° and lows 59°15°, with 0.32 in8.1 mm of precipitation in a typical September.
- Record high
- 98°37° (1950)
- Record low
- 34°1° (1948)
- Heating degree days
- 43
- Cooling degree days
- 191
Covina in OctoberThis month
Highs average 72°22° and lows 51°11°, with 1.3 in33 mm of precipitation in a typical October.
- Record high
- 95°35° (2024)
- Record low
- 18°−8° (1971)
- Heating degree days
- 174
- Cooling degree days
- 64
Covina in November
Highs average 63°17° and lows 43°6°, with 1.9 in48 mm of precipitation in a typical November.
- Record high
- 84°29° (2010)
- Record low
- 15°−9° (1975)
- Heating degree days
- 366
- Cooling degree days
- 11
Covina in December
Highs average 55°13° and lows 37°3°, with 4 in102 mm of precipitation in a typical December.
- Record high
- 78°26° (1958)
- Record low
- 10°−12° (1967)
- Heating degree days
- 589
- Cooling degree days
- 1