La Porte weather by month
What a typical year looks like in La Porte, California: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Downieville, 18 km from La Porte; records cover 1911–2026.
The year at a glance
- Precipitation a year
- 64.9 in1649 mm
- Snow a year
- 26 in67 cm
- Last spring freeze
- Apr 28
- First fall freeze
- Oct 24
- Heating degree days
- 4,758
- Cooling degree days
- 454
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 22°−6° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
La Porte in January
Highs average 48°9° and lows 30°−1°, with 11.3 in286 mm of precipitation and 6 in16 cm of snow in a typical January.
- Record high
- 71°22° (1948)
- Record low
- 1°−17° (1913)
- Heating degree days
- 806
- Cooling degree days
- 0
La Porte in February
Highs average 52°11° and lows 31°−1°, with 10.7 in273 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 78°26° (1986)
- Record low
- 2°−17° (1949)
- Heating degree days
- 658
- Cooling degree days
- 0
La Porte in March
Highs average 58°14° and lows 33°1°, with 10 in254 mm of precipitation and 4 in11 cm of snow in a typical March.
- Record high
- 89°32° (2026)
- Record low
- 10°−12° (1971)
- Heating degree days
- 611
- Cooling degree days
- 0
La Porte in April
Highs average 63°17° and lows 36°2°, with 5.3 in136 mm of precipitation and 1.2 in3 cm of snow in a typical April.
- Record high
- 96°36° (1981)
- Record low
- 14°−10° (1927)
- Heating degree days
- 465
- Cooling degree days
- 0
La Porte in May
Highs average 72°22° and lows 42°5°, with 3.7 in93 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 99°37° (1984)
- Record low
- 26°−3° (1915)
- Heating degree days
- 262
- Cooling degree days
- 13
La Porte in June
Highs average 81°27° and lows 46°8°, with 1.1 in27 mm of precipitation in a typical June.
- Record high
- 107°42° (2006)
- Record low
- 28°−2° (1929)
- Heating degree days
- 94
- Cooling degree days
- 59
La Porte in July
Highs average 89°32° and lows 51°11°, with 0.06 in1.5 mm of precipitation in a typical July.
- Record high
- 106°41° (1988)
- Record low
- 35°2° (1912)
- Heating degree days
- 10
- Cooling degree days
- 172
La Porte in August
Highs average 89°31° and lows 50°10°, with 0.19 in4.8 mm of precipitation in a typical August.
- Record high
- 109°43° (1981)
- Record low
- 34°1° (1911)
- Heating degree days
- 11
- Cooling degree days
- 142
La Porte in September
Highs average 83°29° and lows 46°8°, with 0.66 in17 mm of precipitation in a typical September.
- Record high
- 105°41° (1950)
- Record low
- 25°−4° (1929)
- Heating degree days
- 73
- Cooling degree days
- 62
La Porte in OctoberThis month
Highs average 72°22° and lows 39°4°, with 3.3 in85 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 97°36° (1996)
- Record low
- 19°−7° (1946)
- Heating degree days
- 302
- Cooling degree days
- 6
La Porte in November
Highs average 56°13° and lows 33°1°, with 6.8 in173 mm of precipitation and 1.2 in3 cm of snow in a typical November.
- Record high
- 84°29° (1927)
- Record low
- 17°−8° (1921)
- Heating degree days
- 620
- Cooling degree days
- 0
La Porte in December
Highs average 46°8° and lows 29°−2°, with 11.8 in300 mm of precipitation and 5 in13 cm of snow in a typical December.
- Record high
- 74°23° (1925)
- Record low
- 1°−17° (1972)
- Heating degree days
- 846
- Cooling degree days
- 0