Garrison weather by month
What a typical year looks like in Garrison, Kentucky: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Warnock 2, 19 km from Garrison; records cover 2004–2026.
The year at a glance
- Precipitation a year
- 48.2 in1224 mm
- Snow a year
- 21 in53 cm
- Last spring freeze
- Apr 25
- First fall freeze
- Oct 19
- Heating degree days
- 4,763
- Cooling degree days
- 965
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 2°−17° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Garrison in January
Highs average 42°6° and lows 24°−5°, with 3.4 in86 mm of precipitation and 6 in14 cm of snow in a typical January.
- Record high
- 75°24° (2020)
- Record low
- −8°−22° (2025)
- Heating degree days
- 993
- Cooling degree days
- 0
Garrison in February
Highs average 46°8° and lows 26°−4°, with 3.4 in87 mm of precipitation and 7 in17 cm of snow in a typical February.
- Record high
- 81°27° (2018)
- Record low
- −18°−28° (2015)
- Heating degree days
- 812
- Cooling degree days
- 0
Garrison in March
Highs average 56°13° and lows 32°0°, with 5 in126 mm of precipitation and 4 in10 cm of snow in a typical March.
- Record high
- 89°32° (2012)
- Record low
- −4°−20° (2015)
- Heating degree days
- 654
- Cooling degree days
- 3
Garrison in April
Highs average 69°20° and lows 41°5°, with 4.2 in106 mm of precipitation and 0.6 in1.5 cm of snow in a typical April.
- Record high
- 91°33° (2017)
- Record low
- 21°−6° (2007)
- Heating degree days
- 324
- Cooling degree days
- 16
Garrison in May
Highs average 76°24° and lows 50°10°, with 5.2 in132 mm of precipitation in a typical May.
- Record high
- 94°34° (2010)
- Record low
- 28°−2° (2005)
- Heating degree days
- 134
- Cooling degree days
- 72
Garrison in June
Highs average 82°28° and lows 59°15°, with 4.7 in120 mm of precipitation in a typical June.
- Record high
- 104°40° (2012)
- Record low
- 41°5° (2020)
- Heating degree days
- 14
- Cooling degree days
- 179
Garrison in July
Highs average 86°30° and lows 63°17°, with 5.3 in134 mm of precipitation in a typical July.
- Record high
- 106°41° (2012)
- Record low
- 47°8° (2008)
- Heating degree days
- 2
- Cooling degree days
- 290
Garrison in August
Highs average 85°30° and lows 62°16°, with 3.1 in79 mm of precipitation in a typical August.
- Record high
- 101°38° (2007)
- Record low
- 44°7° (2025)
- Heating degree days
- 2
- Cooling degree days
- 264
Garrison in September
Highs average 80°27° and lows 55°13°, with 3.7 in95 mm of precipitation in a typical September.
- Record high
- 101°38° (2011)
- Record low
- 35°2° (2012)
- Heating degree days
- 56
- Cooling degree days
- 122
Garrison in OctoberThis month
Highs average 69°21° and lows 42°6°, with 3.2 in82 mm of precipitation in a typical October.
- Record high
- 97°36° (2019)
- Record low
- 22°−6° (2008)
- Heating degree days
- 305
- Cooling degree days
- 18
Garrison in November
Highs average 57°14° and lows 33°0°, with 2.9 in74 mm of precipitation and 0.7 in1.8 cm of snow in a typical November.
- Record high
- 85°29° (2016)
- Record low
- 9°−13° (2005)
- Heating degree days
- 605
- Cooling degree days
- 1
Garrison in December
Highs average 47°8° and lows 28°−2°, with 4.1 in103 mm of precipitation and 3 in8 cm of snow in a typical December.
- Record high
- 74°23° (2016)
- Record low
- −3°−19° (2022)
- Heating degree days
- 862
- Cooling degree days
- 0