Riverton weather by month
What a typical year looks like in Riverton, Kansas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at JOPLIN REGIONAL AIRPORT, 21 km from Riverton; records cover 1902–2026.
The year at a glance
- Precipitation a year
- 45.6 in1158 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 7
- First fall freeze
- Oct 26
- Heating degree days
- 4,119
- Cooling degree days
- 1,650
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 7°−14° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Riverton in January
Highs average 45°7° and lows 25°−4°, with 1.9 in49 mm of precipitation in a typical January.
- Record high
- 79°26° (1913)
- Record low
- −12°−24° (1985)
- Heating degree days
- 933
- Cooling degree days
- 0
Riverton in February
Highs average 50°10° and lows 29°−2°, with 2 in50 mm of precipitation in a typical February.
- Record high
- 87°31° (1996)
- Record low
- −21°−29° (1905)
- Heating degree days
- 719
- Cooling degree days
- 1
Riverton in March
Highs average 60°15° and lows 37°3°, with 3.3 in84 mm of precipitation in a typical March.
- Record high
- 94°34° (1907)
- Record low
- −5°−21° (1948)
- Heating degree days
- 517
- Cooling degree days
- 9
Riverton in April
Highs average 69°21° and lows 47°8°, with 5 in127 mm of precipitation in a typical April.
- Record high
- 96°36° (1972)
- Record low
- 19°−7° (1957)
- Heating degree days
- 249
- Cooling degree days
- 36
Riverton in May
Highs average 77°25° and lows 56°13°, with 6.6 in167 mm of precipitation in a typical May.
- Record high
- 96°36° (1912)
- Record low
- 30°−1° (1960)
- Heating degree days
- 79
- Cooling degree days
- 126
Riverton in June
Highs average 86°30° and lows 65°19°, with 5.6 in142 mm of precipitation in a typical June.
- Record high
- 104°40° (1908)
- Record low
- 44°7° (1988)
- Heating degree days
- 4
- Cooling degree days
- 322
Riverton in July
Highs average 90°32° and lows 70°21°, with 4 in101 mm of precipitation in a typical July.
- Record high
- 115°46° (1954)
- Record low
- 50°10° (1975)
- Heating degree days
- 0
- Cooling degree days
- 462
Riverton in August
Highs average 90°32° and lows 68°20°, with 3.4 in85 mm of precipitation in a typical August.
- Record high
- 110°43° (2011)
- Record low
- 46°8° (1950)
- Heating degree days
- 1
- Cooling degree days
- 433
Riverton in September
Highs average 82°28° and lows 59°15°, with 4.2 in106 mm of precipitation in a typical September.
- Record high
- 105°41° (1947)
- Record low
- 30°−1° (1984)
- Heating degree days
- 36
- Cooling degree days
- 207
Riverton in OctoberThis month
Highs average 71°22° and lows 48°9°, with 3.8 in97 mm of precipitation in a typical October.
- Record high
- 94°34° (1953)
- Record low
- 18°−8° (1993)
- Heating degree days
- 226
- Cooling degree days
- 49
Riverton in November
Highs average 58°15° and lows 37°3°, with 3.3 in85 mm of precipitation in a typical November.
- Record high
- 87°31° (2006)
- Record low
- 6°−14° (2014)
- Heating degree days
- 523
- Cooling degree days
- 5
Riverton in December
Highs average 48°9° and lows 29°−2°, with 2.6 in66 mm of precipitation in a typical December.
- Record high
- 79°26° (2025)
- Record low
- −15°−26° (1989)
- Heating degree days
- 832
- Cooling degree days
- 0