Riverton Weather Records

Riverton, Wyoming weather averages and records from 1907–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Riverton, Wyoming was 104 °F which occurred on July 14, 2005.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Riverton, Wyoming was -46 °F which occurred on December 23, 1983.
Lowest Temperatures: All-Time By Year
Riverton Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 29.6 4.5 63 -46 0.4 5.5
February 36.4 8.9 71 -45 0.4 7.4
March 50.3 22.2 78 -24 0.7 6.3
April 59.2 30.3 87 -18 1.3 7.3
May 68.6 40.1 96 15 2.0 2.0
June 80.2 48.3 102 26 1.1 0.0
July 89.4 54.8 104 30 0.6 0.0
August 87.0 52.1 103 29 0.5 0.0
September 75.6 42.6 98 9 0.8 0.6
October 60.5 30.2 90 -13 0.9 4.4
November 44.0 17.5 73 -28 0.4 5.0
December 30.8 4.9 65 -46 0.3 5.3
Entire year 59.5 29.5 104 -46 9.5 43.3
More Riverton Weather Records
1907–2024
Highest daily low 71 °F July 26, 2011
Lowest daily high -23 °F December 22, 1990
Greatest daily range
(Difference of high and low)
71 °F December 22, 2022
Greatest difference in daily high
over two conscutive days
55 °F Jan 27–28, 1951
Most daily precipitation 3.5 inches May 8, 1921
Most monthly precipitation 6.2 inches May 1921
Most yearly precipitation 20.6 inches 1912
Most yearly days with precipitation 89 2023
Earliest snow in season September 4 1999
Latest snow in season June 5 1943
Most daily snow 21.8 inches November 24, 2023
Most monthly snow 31.7 inches April 1999
Most yearly snow 92.0 inches 2023
Most snow in a winter 94.7 inches 2022–2023
Greatest snow accumulation 23.0 inches February 23, 2023
Earliest freeze August 7 1912
Earliest day ≥ 80 °F April 10 1996
Earliest day ≥ 90 °F May 14 1936
Earliest day ≥ 100 °F June 15 2021
Latest freeze July 7 1986
Latest day ≥ 80 °F October 22 2003
Latest day ≥ 90 °F October 1 1980
Latest day ≥ 100 °F August 25 1919
Most days in a year < 0 °F 72 1985
Most days in a year < 32 °F 223 1984
Most days in a year ≥ 80 °F 115 1994
Most days in a year ≥ 90 °F 58 2012
Most days in a year ≥ 100 °F 7 1988
Riverton Weather Streaks
Most consecutive days...
With precipitation 12 days Apr 27 – May 8, 1978
Without precipitation 93 days Dec 1, 1945 – Mar 3, 1946
With snow 6 days Apr 10–15, 1927
High temperature at or
below freezing
50 days Dec 23, 1978 – Feb 10, 1979
High temperature ≥ 80 °F 85 days Jun 16 – Sep 8, 2013
High temperature ≥ 90 °F 20 days Jul 16 – Aug 4, 1945
High temperature ≥ 100 °F 4 days Jun 30 – Jul 3, 1990
Riverton Weather by Year
More Riverton Weather
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Weather Station Details
Years Station Coordinates
1907–2024 Riverton location