Brinnon weather by month
What a typical year looks like in Brinnon, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at BREMERTON, 21 km from Brinnon; records cover 1899–2026.
The year at a glance
- Precipitation a year
- 56.9 in1446 mm
- Snow a year
- 3 in8 cm
- Last spring freeze
- Apr 2
- First fall freeze
- Nov 14
- Heating degree days
- 4,825
- Cooling degree days
- 193
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 24°−4° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Brinnon in January
Highs average 47°8° and lows 36°2°, with 9.3 in236 mm of precipitation and 0.6 in1.5 cm of snow in a typical January.
- Record high
- 64°18° (1920)
- Record low
- 12°−11° (1969)
- Heating degree days
- 741
- Cooling degree days
- 0
Brinnon in February
Highs average 49°10° and lows 35°2°, with 5.8 in148 mm of precipitation and 0.7 in1.8 cm of snow in a typical February.
- Record high
- 72°22° (1918)
- Record low
- 12°−11° (1989)
- Heating degree days
- 637
- Cooling degree days
- 0
Brinnon in March
Highs average 54°12° and lows 38°3°, with 6.4 in162 mm of precipitation and 0.1 in0.3 cm of snow in a typical March.
- Record high
- 80°27° (2004)
- Record low
- 19°−7° (1989)
- Heating degree days
- 598
- Cooling degree days
- 0
Brinnon in April
Highs average 59°15° and lows 41°5°, with 3.9 in98 mm of precipitation in a typical April.
- Record high
- 89°32° (2016)
- Record low
- 23°−5° (2001)
- Heating degree days
- 450
- Cooling degree days
- 0
Brinnon in May
Highs average 66°19° and lows 47°8°, with 2.4 in60 mm of precipitation in a typical May.
- Record high
- 92°33° (1963)
- Record low
- 27°−3° (1964)
- Heating degree days
- 280
- Cooling degree days
- 6
Brinnon in June
Highs average 70°21° and lows 51°11°, with 1.6 in41 mm of precipitation in a typical June.
- Record high
- 102°39° (2021)
- Record low
- 37°3° (1901)
- Heating degree days
- 150
- Cooling degree days
- 20
Brinnon in July
Highs average 77°25° and lows 55°13°, with 0.83 in21 mm of precipitation in a typical July.
- Record high
- 99°37° (2007)
- Record low
- 39°4° (1903)
- Heating degree days
- 50
- Cooling degree days
- 67
Brinnon in August
Highs average 77°25° and lows 55°13°, with 1.1 in28 mm of precipitation in a typical August.
- Record high
- 101°38° (1981)
- Record low
- 40°4° (1955)
- Heating degree days
- 40
- Cooling degree days
- 77
Brinnon in September
Highs average 72°22° and lows 51°11°, with 1.8 in46 mm of precipitation in a typical September.
- Record high
- 97°36° (1988)
- Record low
- 30°−1° (2003)
- Heating degree days
- 128
- Cooling degree days
- 23
Brinnon in OctoberThis month
Highs average 61°16° and lows 45°7°, with 5.1 in131 mm of precipitation in a typical October.
- Record high
- 88°31° (2022)
- Record low
- 27°−3° (1971)
- Heating degree days
- 383
- Cooling degree days
- 0
Brinnon in November
Highs average 51°11° and lows 39°4°, with 8.8 in225 mm of precipitation and 0.3 in0.8 cm of snow in a typical November.
- Record high
- 74°23° (1901)
- Record low
- 10°−12° (1955)
- Heating degree days
- 602
- Cooling degree days
- 0
Brinnon in December
Highs average 46°8° and lows 35°2°, with 9.9 in252 mm of precipitation and 1.3 in3.3 cm of snow in a typical December.
- Record high
- 71°22° (1918)
- Record low
- 7°−14° (1990)
- Heating degree days
- 766
- Cooling degree days
- 0