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Fairwater weather by month

What a typical year looks like in Fairwater, Wisconsin: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Markesan Wwtp, 11 km from Fairwater; records cover 2007–2026.

Today’s Fairwater forecast

The year at a glance

January: typical high 25.8°F, low 8.9°F, precipitation 1.38 in. February: typical high 29.6°F, low 10.4°F, precipitation 1.39 in. March: typical high 41.9°F, low 21.4°F, precipitation 2 in. April: typical high 55.6°F, low 32.9°F, precipitation 3.45 in. May: typical high 68.2°F, low 45°F, precipitation 4.29 in. June: typical high 77.6°F, low 55.4°F, precipitation 4.58 in. July: typical high 81.8°F, low 58.7°F, precipitation 4.29 in. August: typical high 79.9°F, low 56.2°F, precipitation 4.15 in. September: typical high 72.4°F, low 48.4°F, precipitation 3.27 in. October: typical high 59.4°F, low 36.9°F, precipitation 2.93 in. November: typical high 43.9°F, low 26°F, precipitation 2.23 in. December: typical high 31.6°F, low 15.2°F, precipitation 1.65 in.−40°−40°−20°−29°0°−18°20°−7°40°4°60°16°80°27°100°38°26°−3°9°−13°Jan30°−1°10°−12°Feb42°5°21°−6°Mar56°13°33°0°Apr68°20°45°7°May78°25°55°13°Jun82°28°59°15°Jul80°27°56°13°Aug72°22°48°9°Sep59°15°37°3°Oct44°7°26°−3°Nov32°0°15°−9°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
35.6 in904 mm
Snow a year
Rare
Last spring freeze
May 13
First fall freeze
Oct 3
Heating degree days
7,684
Cooling degree days
479

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −17°−27° (heating, 99%) and 91°33° (cooling, 1%).

Month by month

Fairwater in January

Highs average 26°−3° and lows 9°−13°, with 1.4 in35 mm of precipitation in a typical January.

Record high
56°13° (2025)
Record low
−32°−36° (2019)
Heating degree days
1477
Cooling degree days
0

Fairwater in February

Highs average 30°−1° and lows 10°−12°, with 1.4 in35 mm of precipitation in a typical February.

Record high
71°22° (2024)
Record low
−30°−34° (2019)
Heating degree days
1260
Cooling degree days
0

Fairwater in March

Highs average 42°5° and lows 21°−6°, with 2 in51 mm of precipitation in a typical March.

Record high
83°28° (2012)
Record low
−18°−28° (2014)
Heating degree days
1034
Cooling degree days
0

Fairwater in April

Highs average 56°13° and lows 33°0°, with 3.5 in88 mm of precipitation in a typical April.

Record high
86°30° (2007)
Record low
7°−14° (2018)
Heating degree days
623
Cooling degree days
0

Fairwater in May

Highs average 68°20° and lows 45°7°, with 4.3 in109 mm of precipitation in a typical May.

Record high
97°36° (2018)
Record low
25°−4° (2026)
Heating degree days
286
Cooling degree days
25

Fairwater in June

Highs average 78°25° and lows 55°13°, with 4.6 in116 mm of precipitation in a typical June.

Record high
95°35° (2009)
Record low
38°3° (2009)
Heating degree days
55
Cooling degree days
100

Fairwater in July

Highs average 82°28° and lows 59°15°, with 4.3 in109 mm of precipitation in a typical July.

Record high
102°39° (2012)
Record low
45°7° (2009)
Heating degree days
17
Cooling degree days
179

Fairwater in August

Highs average 80°27° and lows 56°13°, with 4.2 in105 mm of precipitation in a typical August.

Record high
97°36° (2023)
Record low
38°3° (2009)
Heating degree days
32
Cooling degree days
127

Fairwater in September

Highs average 72°22° and lows 48°9°, with 3.3 in83 mm of precipitation in a typical September.

Record high
93°34° (2023)
Record low
30°−1° (2007)
Heating degree days
182
Cooling degree days
44

Fairwater in OctoberThis month

Highs average 59°15° and lows 37°3°, with 2.9 in74 mm of precipitation in a typical October.

Record high
88°31° (2007)
Record low
21°−6° (2009)
Heating degree days
526
Cooling degree days
4

Fairwater in November

Highs average 44°7° and lows 26°−3°, with 2.2 in57 mm of precipitation in a typical November.

Record high
75°24° (2016)
Record low
−1°−18° (2014)
Heating degree days
902
Cooling degree days
0

Fairwater in December

Highs average 32°0° and lows 15°−9°, with 1.7 in42 mm of precipitation in a typical December.

Record high
64°18° (2021)
Record low
−20°−29° (2013)
Heating degree days
1290
Cooling degree days
0