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Northport weather by month

What a typical year looks like in Northport, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Old Mission 3ssw, 25 km from Northport; records cover 1979–2026.

Today’s Northport forecast

The year at a glance

January: typical high 29.5°F, low 16.5°F, precipitation 1.78 in. February: typical high 30.8°F, low 15.9°F, precipitation 1.18 in. March: typical high 40.6°F, low 22.2°F, precipitation 1.43 in. April: typical high 52.3°F, low 31.3°F, precipitation 2.81 in. May: typical high 65.6°F, low 42.6°F, precipitation 3.05 in. June: typical high 75.5°F, low 52.4°F, precipitation 3.02 in. July: typical high 79.9°F, low 57.7°F, precipitation 2.78 in. August: typical high 78.6°F, low 58.1°F, precipitation 3.32 in. September: typical high 71.4°F, low 50.9°F, precipitation 3.61 in. October: typical high 57.8°F, low 41.3°F, precipitation 3.98 in. November: typical high 46.1°F, low 32.5°F, precipitation 2.36 in. December: typical high 35.2°F, low 24.5°F, precipitation 2 in.−30°−34°−10°−23°10°−12°30°−1°50°10°70°21°90°32°110°43°30°−1°17°−9°Jan31°−1°16°−9°Feb41°5°22°−5°Mar52°11°31°0°Apr66°19°43°6°May76°24°52°11°Jun80°27°58°14°Jul79°26°58°15°Aug71°22°51°11°Sep58°14°41°5°Oct46°8°33°0°Nov35°2°25°−4°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
31.3 in796 mm
Snow a year
Rare
Last spring freeze
May 18
First fall freeze
Oct 16
Heating degree days
7,237
Cooling degree days
428

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 90°32° (cooling, 1%).

Month by month

Northport in January

Highs average 30°−1° and lows 17°−9°, with 1.8 in45 mm of precipitation in a typical January.

Record high
54°12° (1996)
Record low
−14°−26° (1994)
Heating degree days
1302
Cooling degree days
0

Northport in February

Highs average 31°−1° and lows 16°−9°, with 1.2 in30 mm of precipitation in a typical February.

Record high
69°21° (2024)
Record low
−20°−29° (1994)
Heating degree days
1166
Cooling degree days
0

Northport in March

Highs average 41°5° and lows 22°−5°, with 1.4 in36 mm of precipitation in a typical March.

Record high
84°29° (2012)
Record low
−16°−27° (1980)
Heating degree days
1042
Cooling degree days
0

Northport in April

Highs average 52°11° and lows 31°0°, with 2.8 in71 mm of precipitation in a typical April.

Record high
85°29° (1980)
Record low
8°−13° (1996)
Heating degree days
697
Cooling degree days
1

Northport in May

Highs average 66°19° and lows 43°6°, with 3.1 in77 mm of precipitation in a typical May.

Record high
92°33° (1998)
Record low
23°−5° (1990)
Heating degree days
358
Cooling degree days
20

Northport in June

Highs average 76°24° and lows 52°11°, with 3 in77 mm of precipitation in a typical June.

Record high
95°35° (2005)
Record low
31°−1° (1982)
Heating degree days
105
Cooling degree days
74

Northport in July

Highs average 80°27° and lows 58°14°, with 2.8 in71 mm of precipitation in a typical July.

Record high
97°36° (1988)
Record low
36°2° (2001)
Heating degree days
31
Cooling degree days
149

Northport in August

Highs average 79°26° and lows 58°15°, with 3.3 in84 mm of precipitation in a typical August.

Record high
99°37° (2006)
Record low
34°1° (1982)
Heating degree days
31
Cooling degree days
134

Northport in September

Highs average 71°22° and lows 51°11°, with 3.6 in92 mm of precipitation in a typical September.

Record high
92°33° (1999)
Record low
27°−3° (2000)
Heating degree days
162
Cooling degree days
47

Northport in OctoberThis month

Highs average 58°14° and lows 41°5°, with 4 in101 mm of precipitation in a typical October.

Record high
87°31° (2007)
Record low
21°−6° (1997)
Heating degree days
482
Cooling degree days
3

Northport in November

Highs average 46°8° and lows 33°0°, with 2.4 in60 mm of precipitation in a typical November.

Record high
76°24° (2020)
Record low
13°−11° (1986)
Heating degree days
771
Cooling degree days
0

Northport in December

Highs average 35°2° and lows 25°−4°, with 2 in51 mm of precipitation in a typical December.

Record high
65°18° (2001)
Record low
−5°−21° (1983)
Heating degree days
1090
Cooling degree days
0