Moscow weather by month
What a typical year looks like in Moscow, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MUSCATINE, 18 km from Moscow; records cover 1935–2026.
The year at a glance
- Precipitation a year
- 40 in1015 mm
- Snow a year
- 24 in60 cm
- Last spring freeze
- Apr 18
- First fall freeze
- Oct 16
- Heating degree days
- 6,213
- Cooling degree days
- 969
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −8°−22° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Moscow in January
Highs average 31°−1° and lows 13°−10°, with 1.5 in38 mm of precipitation and 7 in18 cm of snow in a typical January.
- Record high
- 69°21° (1989)
- Record low
- −31°−35° (2019)
- Heating degree days
- 1331
- Cooling degree days
- 0
Moscow in February
Highs average 36°2° and lows 17°−8°, with 1.8 in45 mm of precipitation and 6 in15 cm of snow in a typical February.
- Record high
- 77°25° (2024)
- Record low
- −34°−37° (1996)
- Heating degree days
- 1074
- Cooling degree days
- 0
Moscow in March
Highs average 50°10° and lows 28°−2°, with 2.6 in65 mm of precipitation and 2.8 in7.1 cm of snow in a typical March.
- Record high
- 89°32° (1986)
- Record low
- −18°−28° (2015)
- Heating degree days
- 809
- Cooling degree days
- 2
Moscow in April
Highs average 63°17° and lows 39°4°, with 3.8 in97 mm of precipitation and 0.7 in1.8 cm of snow in a typical April.
- Record high
- 93°34° (1952)
- Record low
- 10°−12° (1982)
- Heating degree days
- 423
- Cooling degree days
- 10
Moscow in May
Highs average 74°23° and lows 51°11°, with 5.1 in130 mm of precipitation in a typical May.
- Record high
- 96°36° (2018)
- Record low
- 26°−3° (1945)
- Heating degree days
- 157
- Cooling degree days
- 72
Moscow in June
Highs average 82°28° and lows 61°16°, with 5.5 in139 mm of precipitation in a typical June.
- Record high
- 104°40° (1936)
- Record low
- 33°1° (1982)
- Heating degree days
- 17
- Cooling degree days
- 213
Moscow in July
Highs average 85°30° and lows 64°18°, with 4.3 in108 mm of precipitation in a typical July.
- Record high
- 111°44° (1936)
- Record low
- 44°7° (1940)
- Heating degree days
- 2
- Cooling degree days
- 306
Moscow in August
Highs average 83°29° and lows 62°17°, with 4.3 in108 mm of precipitation in a typical August.
- Record high
- 107°42° (1936)
- Record low
- 39°4° (1986)
- Heating degree days
- 6
- Cooling degree days
- 244
Moscow in September
Highs average 78°25° and lows 54°12°, with 3.9 in99 mm of precipitation in a typical September.
- Record high
- 101°38° (2013)
- Record low
- 23°−5° (1942)
- Heating degree days
- 88
- Cooling degree days
- 107
Moscow in OctoberThis month
Highs average 65°18° and lows 42°5°, with 3 in77 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 96°36° (1997)
- Record low
- 17°−8° (1942)
- Heating degree days
- 382
- Cooling degree days
- 15
Moscow in November
Highs average 49°9° and lows 30°−1°, with 2.3 in58 mm of precipitation and 0.8 in2 cm of snow in a typical November.
- Record high
- 81°27° (1950)
- Record low
- −5°−21° (1977)
- Heating degree days
- 771
- Cooling degree days
- 0
Moscow in December
Highs average 36°2° and lows 20°−7°, with 2 in51 mm of precipitation and 6 in16 cm of snow in a typical December.
- Record high
- 75°24° (2021)
- Record low
- −23°−31° (1989)
- Heating degree days
- 1153
- Cooling degree days
- 0