Fort Supply weather by month
What a typical year looks like in Fort Supply, Oklahoma: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Woodward 2wsw Mesonet, 22 km from Fort Supply; records cover 2007–2026.
The year at a glance
- Precipitation a year
- 0 in0 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 10
- First fall freeze
- Oct 25
- Heating degree days
- 3,955
- Cooling degree days
- 1,893
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 8°−13° (heating, 99%) and 105°41° (cooling, 1%).
Month by month
Fort Supply in January
Highs average 49°10° and lows 25°−4°, with — of precipitation in a typical January.
- Record high
- 82°28° (2015)
- Record low
- −5°−21° (2025)
- Heating degree days
- 860
- Cooling degree days
- 0
Fort Supply in February
Highs average 53°12° and lows 28°−2°, with — of precipitation in a typical February.
- Record high
- 90°32° (2017)
- Record low
- −12°−24° (2021)
- Heating degree days
- 698
- Cooling degree days
- 2
Fort Supply in March
Highs average 63°17° and lows 37°3°, with — of precipitation in a typical March.
- Record high
- 98°37° (2026)
- Record low
- −2°−19° (2014)
- Heating degree days
- 475
- Cooling degree days
- 12
Fort Supply in April
Highs average 71°22° and lows 46°8°, with — of precipitation in a typical April.
- Record high
- 101°38° (2018)
- Record low
- 18°−8° (2018)
- Heating degree days
- 241
- Cooling degree days
- 38
Fort Supply in May
Highs average 80°26° and lows 55°13°, with — of precipitation in a typical May.
- Record high
- 102°39° (2011)
- Record low
- 31°−1° (2013)
- Heating degree days
- 82
- Cooling degree days
- 152
Fort Supply in June
Highs average 89°31° and lows 66°19°, with — of precipitation in a typical June.
- Record high
- 111°44° (2011)
- Record low
- 48°9° (2009)
- Heating degree days
- 2
- Cooling degree days
- 364
Fort Supply in July
Highs average 94°35° and lows 70°21°, with — of precipitation in a typical July.
- Record high
- 111°44° (2009)
- Record low
- 52°11° (2013)
- Heating degree days
- 1
- Cooling degree days
- 524
Fort Supply in August
Highs average 93°34° and lows 68°20°, with — of precipitation in a typical August.
- Record high
- 112°44° (2012)
- Record low
- 49°9° (2010)
- Heating degree days
- 0
- Cooling degree days
- 485
Fort Supply in September
Highs average 85°29° and lows 60°16°, with — of precipitation in a typical September.
- Record high
- 105°41° (2023)
- Record low
- 40°4° (2020)
- Heating degree days
- 26
- Cooling degree days
- 248
Fort Supply in OctoberThis month
Highs average 73°23° and lows 48°9°, with — of precipitation in a typical October.
- Record high
- 101°38° (2021)
- Record low
- 16°−9° (2019)
- Heating degree days
- 212
- Cooling degree days
- 63
Fort Supply in November
Highs average 60°15° and lows 36°2°, with — of precipitation in a typical November.
- Record high
- 92°33° (2023)
- Record low
- 6°−14° (2019)
- Heating degree days
- 525
- Cooling degree days
- 5
Fort Supply in December
Highs average 50°10° and lows 27°−3°, with — of precipitation in a typical December.
- Record high
- 84°29° (2025)
- Record low
- −7°−22° (2016)
- Heating degree days
- 833
- Cooling degree days
- 0