Creston weather by month
What a typical year looks like in Creston, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Creston 2 SW, 4 km from Creston; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 37.9 in962 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 21
- First fall freeze
- Oct 10
- Heating degree days
- 6,695
- Cooling degree days
- 832
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −9°−23° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Creston in January
Highs average 31°−1° and lows 11°−12°, with 1 in26 mm of precipitation in a typical January.
- Record high
- 66°19° (2002)
- Record low
- −31°−35° (1912)
- Heating degree days
- 1378
- Cooling degree days
- 0
Creston in February
Highs average 35°2° and lows 14°−10°, with 1.5 in37 mm of precipitation in a typical February.
- Record high
- 78°26° (1930)
- Record low
- −26°−32° (1996)
- Heating degree days
- 1135
- Cooling degree days
- 0
Creston in March
Highs average 49°9° and lows 26°−4°, with 2.5 in64 mm of precipitation in a typical March.
- Record high
- 88°31° (2026)
- Record low
- −20°−29° (1960)
- Heating degree days
- 866
- Cooling degree days
- 1
Creston in April
Highs average 61°16° and lows 36°2°, with 3.7 in95 mm of precipitation in a typical April.
- Record high
- 93°34° (1952)
- Record low
- 7°−14° (1975)
- Heating degree days
- 494
- Cooling degree days
- 4
Creston in May
Highs average 71°22° and lows 49°9°, with 5.2 in131 mm of precipitation in a typical May.
- Record high
- 103°39° (1934)
- Record low
- 23°−5° (1907)
- Heating degree days
- 200
- Cooling degree days
- 47
Creston in June
Highs average 81°27° and lows 59°15°, with 5.2 in131 mm of precipitation in a typical June.
- Record high
- 102°39° (1934)
- Record low
- 37°3° (1935)
- Heating degree days
- 24
- Cooling degree days
- 179
Creston in July
Highs average 85°29° and lows 63°17°, with 4.5 in113 mm of precipitation in a typical July.
- Record high
- 111°44° (1936)
- Record low
- 39°4° (1905)
- Heating degree days
- 4
- Cooling degree days
- 282
Creston in August
Highs average 83°28° and lows 61°16°, with 4.2 in107 mm of precipitation in a typical August.
- Record high
- 111°44° (1918)
- Record low
- 39°4° (1915)
- Heating degree days
- 11
- Cooling degree days
- 224
Creston in September
Highs average 76°25° and lows 52°11°, with 3.7 in94 mm of precipitation in a typical September.
- Record high
- 103°39° (1939)
- Record low
- 24°−4° (1984)
- Heating degree days
- 116
- Cooling degree days
- 86
Creston in OctoberThis month
Highs average 64°18° and lows 39°4°, with 2.8 in71 mm of precipitation in a typical October.
- Record high
- 92°33° (1939)
- Record low
- 2°−17° (1925)
- Heating degree days
- 422
- Cooling degree days
- 9
Creston in November
Highs average 48°9° and lows 26°−3°, with 2.1 in54 mm of precipitation in a typical November.
- Record high
- 80°27° (1938)
- Record low
- −18°−28° (1964)
- Heating degree days
- 831
- Cooling degree days
- 0
Creston in December
Highs average 36°2° and lows 16°−9°, with 1.5 in38 mm of precipitation in a typical December.
- Record high
- 71°22° (2021)
- Record low
- −26°−32° (1989)
- Heating degree days
- 1214
- Cooling degree days
- 0