Northport weather by month
What a typical year looks like in Northport, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Northport, 4 km from Northport; records cover 1899–2026.
The year at a glance
- Precipitation a year
- 20.3 in516 mm
- Snow a year
- 47 in118 cm
- Last spring freeze
- May 3
- First fall freeze
- Oct 4
- Heating degree days
- 7,048
- Cooling degree days
- 300
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 3°−16° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Northport in January
Highs average 31°0° and lows 21°−6°, with 2.2 in57 mm of precipitation and 16 in40 cm of snow in a typical January.
- Record high
- 57°14° (1953)
- Record low
- −32°−36° (1909)
- Heating degree days
- 1215
- Cooling degree days
- 0
Northport in February
Highs average 39°4° and lows 22°−6°, with 1.3 in34 mm of precipitation and 6 in15 cm of snow in a typical February.
- Record high
- 60°16° (1930)
- Record low
- −27°−33° (1950)
- Heating degree days
- 970
- Cooling degree days
- 0
Northport in March
Highs average 49°10° and lows 27°−3°, with 1.6 in42 mm of precipitation and 1.7 in4.3 cm of snow in a typical March.
- Record high
- 76°24° (1994)
- Record low
- −11°−24° (1955)
- Heating degree days
- 832
- Cooling degree days
- 0
Northport in April
Highs average 60°15° and lows 33°0°, with 1.7 in43 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 92°33° (1952)
- Record low
- 12°−11° (1936)
- Heating degree days
- 566
- Cooling degree days
- 0
Northport in May
Highs average 70°21° and lows 41°5°, with 2.1 in54 mm of precipitation in a typical May.
- Record high
- 102°39° (1936)
- Record low
- 20°−7° (1982)
- Heating degree days
- 308
- Cooling degree days
- 4
Northport in June
Highs average 75°24° and lows 47°8°, with 2.4 in62 mm of precipitation in a typical June.
- Record high
- 113°45° (2021)
- Record low
- 26°−3° (1983)
- Heating degree days
- 149
- Cooling degree days
- 27
Northport in July
Highs average 85°30° and lows 51°10°, with 1 in26 mm of precipitation in a typical July.
- Record high
- 111°44° (2021)
- Record low
- 30°−1° (1909)
- Heating degree days
- 35
- Cooling degree days
- 129
Northport in August
Highs average 86°30° and lows 50°10°, with 0.61 in15 mm of precipitation in a typical August.
- Record high
- 109°43° (1961)
- Record low
- 26°−3° (1909)
- Heating degree days
- 37
- Cooling degree days
- 121
Northport in September
Highs average 75°24° and lows 43°6°, with 0.97 in25 mm of precipitation in a typical September.
- Record high
- 105°41° (1950)
- Record low
- 17°−8° (1908)
- Heating degree days
- 202
- Cooling degree days
- 19
Northport in OctoberThis month
Highs average 57°14° and lows 34°1°, with 1.6 in40 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 87°31° (1952)
- Record low
- 6°−14° (1906)
- Heating degree days
- 608
- Cooling degree days
- 0
Northport in November
Highs average 41°5° and lows 27°−3°, with 2.2 in57 mm of precipitation and 6 in15 cm of snow in a typical November.
- Record high
- 69°21° (1975)
- Record low
- −12°−24° (2006)
- Heating degree days
- 933
- Cooling degree days
- 0
Northport in December
Highs average 32°0° and lows 22°−6°, with 2.5 in63 mm of precipitation and 17 in43 cm of snow in a typical December.
- Record high
- 57°14° (2021)
- Record low
- −28°−33° (1968)
- Heating degree days
- 1193
- Cooling degree days
- 0