Hammon weather by month
What a typical year looks like in Hammon, Oklahoma: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Butler 5sw Mesonet, 11 km from Hammon; records cover 2007–2026.
The year at a glance
- Precipitation a year
- 0 in0 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 14
- First fall freeze
- Oct 27
- Heating degree days
- 3,836
- Cooling degree days
- 1,968
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 9°−13° (heating, 99%) and 106°41° (cooling, 1%).
Month by month
Hammon in January
Highs average 51°10° and lows 23°−5°, with — of precipitation in a typical January.
- Record high
- 80°27° (2015)
- Record low
- −7°−22° (2017)
- Heating degree days
- 869
- Cooling degree days
- 0
Hammon in February
Highs average 55°13° and lows 28°−2°, with — of precipitation in a typical February.
- Record high
- 94°34° (2017)
- Record low
- −13°−25° (2021)
- Heating degree days
- 668
- Cooling degree days
- 1
Hammon in March
Highs average 65°18° and lows 36°2°, with — of precipitation in a typical March.
- Record high
- 99°37° (2026)
- Record low
- 1°−17° (2014)
- Heating degree days
- 460
- Cooling degree days
- 10
Hammon in April
Highs average 73°23° and lows 46°8°, with — of precipitation in a typical April.
- Record high
- 102°39° (2018)
- Record low
- 19°−7° (2009)
- Heating degree days
- 218
- Cooling degree days
- 43
Hammon in May
Highs average 82°28° and lows 56°13°, with — of precipitation in a typical May.
- Record high
- 105°41° (2011)
- Record low
- 30°−1° (2013)
- Heating degree days
- 57
- Cooling degree days
- 182
Hammon in June
Highs average 89°32° and lows 66°19°, with — of precipitation in a typical June.
- Record high
- 110°43° (2011)
- Record low
- 50°10° (2009)
- Heating degree days
- 1
- Cooling degree days
- 367
Hammon in July
Highs average 95°35° and lows 69°21°, with — of precipitation in a typical July.
- Record high
- 112°44° (2022)
- Record low
- 52°11° (2019)
- Heating degree days
- 0
- Cooling degree days
- 538
Hammon in August
Highs average 94°34° and lows 69°20°, with — of precipitation in a typical August.
- Record high
- 113°45° (2012)
- Record low
- 49°9° (2010)
- Heating degree days
- 0
- Cooling degree days
- 504
Hammon in September
Highs average 86°30° and lows 60°16°, with — of precipitation in a typical September.
- Record high
- 106°41° (2026)
- Record low
- 40°4° (2009)
- Heating degree days
- 20
- Cooling degree days
- 256
Hammon in OctoberThis month
Highs average 75°24° and lows 47°8°, with — of precipitation in a typical October.
- Record high
- 98°37° (2020)
- Record low
- 14°−10° (2019)
- Heating degree days
- 197
- Cooling degree days
- 63
Hammon in November
Highs average 62°16° and lows 34°1°, with — of precipitation in a typical November.
- Record high
- 91°33° (2023)
- Record low
- 8°−13° (2019)
- Heating degree days
- 520
- Cooling degree days
- 4
Hammon in December
Highs average 51°11° and lows 26°−4°, with — of precipitation in a typical December.
- Record high
- 88°31° (2025)
- Record low
- −2°−19° (2016)
- Heating degree days
- 826
- Cooling degree days
- 0