Hudson weather by month
What a typical year looks like in Hudson, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Waterloo Municipal Airport, 14 km from Hudson; records cover 1895–2026.
The year at a glance
- Precipitation a year
- 36.3 in922 mm
- Snow a year
- 39 in99 cm
- Last spring freeze
- May 2
- First fall freeze
- Oct 5
- Heating degree days
- 6,715
- Cooling degree days
- 916
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −13°−25° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Hudson in January
Highs average 28°−2° and lows 11°−12°, with 1.1 in28 mm of precipitation and 10 in26 cm of snow in a typical January.
- Record high
- 65°18° (2002)
- Record low
- −34°−37° (2009)
- Heating degree days
- 1412
- Cooling degree days
- 0
Hudson in February
Highs average 33°0° and lows 15°−9°, with 1.1 in29 mm of precipitation and 9 in24 cm of snow in a typical February.
- Record high
- 78°26° (2024)
- Record low
- −31°−35° (1996)
- Heating degree days
- 1151
- Cooling degree days
- 0
Hudson in March
Highs average 47°8° and lows 27°−3°, with 2 in50 mm of precipitation and 5 in12 cm of snow in a typical March.
- Record high
- 87°31° (1986)
- Record low
- −34°−37° (1962)
- Heating degree days
- 879
- Cooling degree days
- 1
Hudson in April
Highs average 61°16° and lows 38°3°, with 4 in103 mm of precipitation and 1.7 in4.3 cm of snow in a typical April.
- Record high
- 100°38° (1980)
- Record low
- −4°−20° (1982)
- Heating degree days
- 475
- Cooling degree days
- 7
Hudson in May
Highs average 73°23° and lows 50°10°, with 4.6 in117 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 108°42° (1934)
- Record low
- 22°−6° (1907)
- Heating degree days
- 173
- Cooling degree days
- 64
Hudson in June
Highs average 82°28° and lows 61°16°, with 5.7 in145 mm of precipitation in a typical June.
- Record high
- 107°42° (1934)
- Record low
- 33°1° (1897)
- Heating degree days
- 18
- Cooling degree days
- 212
Hudson in July
Highs average 85°29° and lows 64°18°, with 4.3 in110 mm of precipitation in a typical July.
- Record high
- 112°44° (1936)
- Record low
- 42°6° (1984)
- Heating degree days
- 3
- Cooling degree days
- 297
Hudson in August
Highs average 83°28° and lows 61°16°, with 4.2 in106 mm of precipitation in a typical August.
- Record high
- 110°43° (1936)
- Record low
- 33°1° (1950)
- Heating degree days
- 10
- Cooling degree days
- 225
Hudson in September
Highs average 77°25° and lows 52°11°, with 3.1 in80 mm of precipitation in a typical September.
- Record high
- 102°39° (1922)
- Record low
- 19°−7° (1899)
- Heating degree days
- 109
- Cooling degree days
- 97
Hudson in OctoberThis month
Highs average 63°17° and lows 40°5°, with 2.8 in70 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 95°35° (1930)
- Record low
- 0°−18° (1925)
- Heating degree days
- 428
- Cooling degree days
- 13
Hudson in November
Highs average 47°8° and lows 28°−2°, with 1.9 in47 mm of precipitation and 3 in8 cm of snow in a typical November.
- Record high
- 83°28° (1933)
- Record low
- −17°−27° (1977)
- Heating degree days
- 828
- Cooling degree days
- 0
Hudson in December
Highs average 34°1° and lows 17°−8°, with 1.4 in37 mm of precipitation and 10 in25 cm of snow in a typical December.
- Record high
- 74°23° (2021)
- Record low
- −29°−34° (1919)
- Heating degree days
- 1229
- Cooling degree days
- 0