Ketchum weather by month
What a typical year looks like in Ketchum, Oklahoma: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Spavinaw, 14 km from Ketchum; records cover 1923–2026.
The year at a glance
- Precipitation a year
- 46.6 in1184 mm
- Snow a year
- 6 in14 cm
- Last spring freeze
- Apr 3
- First fall freeze
- Nov 4
- Heating degree days
- 3,686
- Cooling degree days
- 1,814
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 11°−12° (heating, 99%) and 101°38° (cooling, 1%).
Month by month
Ketchum in January
Highs average 48°9° and lows 26°−3°, with 2.3 in58 mm of precipitation and 1.7 in4.3 cm of snow in a typical January.
- Record high
- 78°26° (1950)
- Record low
- −25°−32° (1930)
- Heating degree days
- 863
- Cooling degree days
- 0
Ketchum in February
Highs average 53°12° and lows 30°−1°, with 2.3 in58 mm of precipitation and 0.8 in2 cm of snow in a typical February.
- Record high
- 85°29° (1962)
- Record low
- −12°−24° (2021)
- Heating degree days
- 660
- Cooling degree days
- 0
Ketchum in March
Highs average 62°17° and lows 38°3°, with 3.7 in94 mm of precipitation and 1.8 in4.6 cm of snow in a typical March.
- Record high
- 93°34° (2026)
- Record low
- −4°−20° (1943)
- Heating degree days
- 474
- Cooling degree days
- 6
Ketchum in April
Highs average 71°21° and lows 47°9°, with 4.6 in118 mm of precipitation in a typical April.
- Record high
- 94°34° (2006)
- Record low
- 19°−7° (1936)
- Heating degree days
- 218
- Cooling degree days
- 36
Ketchum in May
Highs average 78°26° and lows 58°14°, with 6.3 in161 mm of precipitation in a typical May.
- Record high
- 100°38° (1924)
- Record low
- 31°−1° (1923)
- Heating degree days
- 55
- Cooling degree days
- 143
Ketchum in June
Highs average 86°30° and lows 67°19°, with 5.1 in128 mm of precipitation in a typical June.
- Record high
- 106°41° (1936)
- Record low
- 47°8° (1945)
- Heating degree days
- 2
- Cooling degree days
- 345
Ketchum in July
Highs average 91°33° and lows 71°22°, with 3.8 in95 mm of precipitation in a typical July.
- Record high
- 113°45° (1936)
- Record low
- 44°7° (2014)
- Heating degree days
- 0
- Cooling degree days
- 501
Ketchum in August
Highs average 91°33° and lows 70°21°, with 3.8 in97 mm of precipitation in a typical August.
- Record high
- 114°46° (1936)
- Record low
- 48°9° (1924)
- Heating degree days
- 0
- Cooling degree days
- 471
Ketchum in September
Highs average 83°29° and lows 62°16°, with 4.4 in113 mm of precipitation in a typical September.
- Record high
- 107°42° (1939)
- Record low
- 34°1° (1942)
- Heating degree days
- 20
- Cooling degree days
- 243
Ketchum in OctoberThis month
Highs average 73°23° and lows 50°10°, with 4.1 in105 mm of precipitation in a typical October.
- Record high
- 98°37° (1953)
- Record low
- 19°−7° (1993)
- Heating degree days
- 168
- Cooling degree days
- 64
Ketchum in November
Highs average 61°16° and lows 39°4°, with 3.7 in93 mm of precipitation and 0.3 in0.8 cm of snow in a typical November.
- Record high
- 85°29° (1924)
- Record low
- 7°−14° (1950)
- Heating degree days
- 466
- Cooling degree days
- 5
Ketchum in December
Highs average 51°10° and lows 30°−1°, with 2.5 in64 mm of precipitation and 0.9 in2.3 cm of snow in a typical December.
- Record high
- 80°27° (2025)
- Record low
- −11°−24° (1989)
- Heating degree days
- 760
- Cooling degree days
- 0