Garrison weather by month
What a typical year looks like in Garrison, Nebraska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Surprise, 15 km from Garrison; records cover 1987–2026.
The year at a glance
- Precipitation a year
- 28.3 in719 mm
- Snow a year
- 24 in62 cm
- Last spring freeze
- Apr 28
- First fall freeze
- Oct 11
- Heating degree days
- 6,435
- Cooling degree days
- 917
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 97°36° (cooling, 1%).
Month by month
Garrison in January
Highs average 34°1° and lows 12°−11°, with 0.58 in15 mm of precipitation and 6 in15 cm of snow in a typical January.
- Record high
- 74°23° (1990)
- Record low
- −24°−31° (1996)
- Heating degree days
- 1299
- Cooling degree days
- 0
Garrison in February
Highs average 39°4° and lows 16°−9°, with 0.69 in18 mm of precipitation and 6 in16 cm of snow in a typical February.
- Record high
- 79°26° (1995)
- Record low
- −34°−37° (2021)
- Heating degree days
- 1057
- Cooling degree days
- 0
Garrison in March
Highs average 51°10° and lows 26°−3°, with 1.5 in37 mm of precipitation and 4 in9 cm of snow in a typical March.
- Record high
- 97°36° (2026)
- Record low
- −13°−25° (1998)
- Heating degree days
- 827
- Cooling degree days
- 1
Garrison in April
Highs average 62°17° and lows 36°2°, with 2.9 in72 mm of precipitation and 1.5 in3.8 cm of snow in a typical April.
- Record high
- 96°36° (1989)
- Record low
- 6°−14° (2018)
- Heating degree days
- 486
- Cooling degree days
- 6
Garrison in May
Highs average 73°23° and lows 48°9°, with 4.9 in124 mm of precipitation in a typical May.
- Record high
- 101°38° (2013)
- Record low
- 27°−3° (1997)
- Heating degree days
- 198
- Cooling degree days
- 57
Garrison in June
Highs average 82°28° and lows 59°15°, with 4.4 in111 mm of precipitation in a typical June.
- Record high
- 106°41° (1988)
- Record low
- 41°5° (1998)
- Heating degree days
- 26
- Cooling degree days
- 195
Garrison in July
Highs average 86°30° and lows 64°18°, with 3.3 in83 mm of precipitation in a typical July.
- Record high
- 106°41° (1995)
- Record low
- 44°7° (1995)
- Heating degree days
- 4
- Cooling degree days
- 308
Garrison in August
Highs average 84°29° and lows 61°16°, with 3.4 in86 mm of precipitation in a typical August.
- Record high
- 101°38° (2000)
- Record low
- 41°5° (1988)
- Heating degree days
- 10
- Cooling degree days
- 244
Garrison in September
Highs average 78°26° and lows 51°10°, with 2.6 in65 mm of precipitation in a typical September.
- Record high
- 103°39° (2000)
- Record low
- 27°−3° (1991)
- Heating degree days
- 114
- Cooling degree days
- 96
Garrison in OctoberThis month
Highs average 65°19° and lows 38°3°, with 2.1 in53 mm of precipitation and 0.6 in1.5 cm of snow in a typical October.
- Record high
- 95°35° (2015)
- Record low
- 6°−14° (1997)
- Heating degree days
- 424
- Cooling degree days
- 10
Garrison in November
Highs average 51°10° and lows 25°−4°, with 1.3 in34 mm of precipitation and 1.5 in3.8 cm of snow in a typical November.
- Record high
- 84°29° (1999)
- Record low
- −11°−24° (1991)
- Heating degree days
- 812
- Cooling degree days
- 0
Garrison in December
Highs average 38°3° and lows 16°−9°, with 0.91 in23 mm of precipitation and 5 in12 cm of snow in a typical December.
- Record high
- 71°22° (1995)
- Record low
- −27°−33° (1989)
- Heating degree days
- 1178
- Cooling degree days
- 0