Fort Calhoun weather by month
What a typical year looks like in Fort Calhoun, Nebraska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Omaha Eppley Airfield, 19 km from Fort Calhoun; records cover 1871–2026.
The year at a glance
- Precipitation a year
- 31.9 in809 mm
- Snow a year
- 27 in69 cm
- Last spring freeze
- Apr 18
- First fall freeze
- Oct 14
- Heating degree days
- 5,832
- Cooling degree days
- 1,293
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −5°−21° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Fort Calhoun in January
Highs average 34°1° and lows 15°−9°, with 0.75 in19 mm of precipitation and 7 in18 cm of snow in a typical January.
- Record high
- 69°21° (1944)
- Record low
- −32°−36° (1884)
- Heating degree days
- 1258
- Cooling degree days
- 0
Fort Calhoun in February
Highs average 39°4° and lows 19°−7°, with 0.95 in24 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 80°27° (2024)
- Record low
- −26°−32° (1899)
- Heating degree days
- 1009
- Cooling degree days
- 0
Fort Calhoun in March
Highs average 52°11° and lows 30°−1°, with 1.8 in45 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 96°36° (2026)
- Record low
- −16°−27° (1948)
- Heating degree days
- 745
- Cooling degree days
- 2
Fort Calhoun in April
Highs average 64°18° and lows 41°5°, with 3.2 in81 mm of precipitation and 1 in2.5 cm of snow in a typical April.
- Record high
- 96°36° (1989)
- Record low
- 5°−15° (1975)
- Heating degree days
- 386
- Cooling degree days
- 14
Fort Calhoun in May
Highs average 75°24° and lows 53°12°, with 4.7 in118 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 103°39° (1934)
- Record low
- 25°−4° (1909)
- Heating degree days
- 132
- Cooling degree days
- 90
Fort Calhoun in June
Highs average 84°29° and lows 63°17°, with 4.4 in113 mm of precipitation in a typical June.
- Record high
- 107°42° (1933)
- Record low
- 39°4° (1945)
- Heating degree days
- 11
- Cooling degree days
- 278
Fort Calhoun in July
Highs average 88°31° and lows 68°20°, with 3.6 in90 mm of precipitation in a typical July.
- Record high
- 114°46° (1936)
- Record low
- 44°7° (1972)
- Heating degree days
- 0
- Cooling degree days
- 405
Fort Calhoun in August
Highs average 86°30° and lows 66°19°, with 4.6 in117 mm of precipitation in a typical August.
- Record high
- 111°44° (1930)
- Record low
- 43°6° (1950)
- Heating degree days
- 3
- Cooling degree days
- 335
Fort Calhoun in September
Highs average 79°26° and lows 56°13°, with 3 in75 mm of precipitation in a typical September.
- Record high
- 104°40° (1939)
- Record low
- 28°−2° (1984)
- Heating degree days
- 70
- Cooling degree days
- 148
Fort Calhoun in OctoberThis month
Highs average 66°19° and lows 43°6°, with 2.3 in59 mm of precipitation and 0.5 in1.3 cm of snow in a typical October.
- Record high
- 96°36° (1938)
- Record low
- 8°−13° (1925)
- Heating degree days
- 351
- Cooling degree days
- 21
Fort Calhoun in November
Highs average 50°10° and lows 30°−1°, with 1.5 in37 mm of precipitation and 1.7 in4.3 cm of snow in a typical November.
- Record high
- 83°28° (1999)
- Record low
- −14°−26° (1887)
- Heating degree days
- 743
- Cooling degree days
- 0
Fort Calhoun in December
Highs average 38°3° and lows 20°−7°, with 1.2 in31 mm of precipitation and 6 in15 cm of snow in a typical December.
- Record high
- 74°23° (2021)
- Record low
- −25°−32° (1989)
- Heating degree days
- 1124
- Cooling degree days
- 0