Windsor weather by month
What a typical year looks like in Windsor, Missouri: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Cole Camp 3nw, 24 km from Windsor; records cover 2006–2026.
The year at a glance
- Precipitation a year
- 42.5 in1079 mm
- Snow a year
- 18 in47 cm
- Last spring freeze
- Apr 8
- First fall freeze
- Oct 23
- Heating degree days
- 5,150
- Cooling degree days
- 1,201
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Windsor in January
Highs average 39°4° and lows 19°−7°, with 1.8 in45 mm of precipitation and 5 in12 cm of snow in a typical January.
- Record high
- 75°24° (2013)
- Record low
- −13°−25° (2010)
- Heating degree days
- 1120
- Cooling degree days
- 0
Windsor in February
Highs average 44°7° and lows 23°−5°, with 2 in50 mm of precipitation and 6 in16 cm of snow in a typical February.
- Record high
- 78°26° (2024)
- Record low
- −17°−27° (2021)
- Heating degree days
- 880
- Cooling degree days
- 0
Windsor in March
Highs average 55°13° and lows 33°0°, with 3.2 in80 mm of precipitation and 4 in9 cm of snow in a typical March.
- Record high
- 92°33° (2026)
- Record low
- −3°−19° (2014)
- Heating degree days
- 667
- Cooling degree days
- 3
Windsor in April
Highs average 65°18° and lows 43°6°, with 4.4 in112 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 91°33° (2006)
- Record low
- 18°−8° (2007)
- Heating degree days
- 352
- Cooling degree days
- 14
Windsor in May
Highs average 74°23° and lows 54°12°, with 5.1 in129 mm of precipitation and 0.2 in0.5 cm of snow in a typical May.
- Record high
- 92°33° (2018)
- Record low
- 31°−1° (2014)
- Heating degree days
- 127
- Cooling degree days
- 82
Windsor in June
Highs average 83°28° and lows 62°17°, with 5.3 in135 mm of precipitation in a typical June.
- Record high
- 101°38° (2012)
- Record low
- 47°8° (2012)
- Heating degree days
- 8
- Cooling degree days
- 230
Windsor in July
Highs average 88°31° and lows 67°19°, with 4 in100 mm of precipitation in a typical July.
- Record high
- 106°41° (2006)
- Record low
- 50°10° (2014)
- Heating degree days
- 1
- Cooling degree days
- 374
Windsor in August
Highs average 87°30° and lows 65°18°, with 4.1 in104 mm of precipitation in a typical August.
- Record high
- 111°44° (2006)
- Record low
- 49°9° (2009)
- Heating degree days
- 3
- Cooling degree days
- 334
Windsor in September
Highs average 79°26° and lows 56°13°, with 4.2 in108 mm of precipitation in a typical September.
- Record high
- 100°38° (2011)
- Record low
- 35°2° (2020)
- Heating degree days
- 61
- Cooling degree days
- 136
Windsor in OctoberThis month
Highs average 67°20° and lows 44°7°, with 3.5 in89 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 95°35° (2006)
- Record low
- 17°−8° (2022)
- Heating degree days
- 312
- Cooling degree days
- 27
Windsor in November
Highs average 54°12° and lows 33°1°, with 2.9 in74 mm of precipitation and 0.5 in1.3 cm of snow in a typical November.
- Record high
- 81°27° (2023)
- Record low
- 5°−15° (2019)
- Heating degree days
- 646
- Cooling degree days
- 1
Windsor in December
Highs average 43°6° and lows 24°−4°, with 2.1 in52 mm of precipitation and 2.9 in7.4 cm of snow in a typical December.
- Record high
- 76°24° (2025)
- Record low
- −9°−23° (2022)
- Heating degree days
- 973
- Cooling degree days
- 0