Riverton, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -18° -1° -43.3° (1979) 17.2° (1953) 0.28" 4.7"
February -14° -42.8° (1936) 21.7° (1951) 0.25" 4.3"
March -7° 10° -31.1° (1920) 25.6° (1986) 0.48" 4.4"
April -2° 16° -27.8° (1936) 30.6° (1987) 1.01" 3.8"
May 21° -7.8° (1954) 35.6° (1984) 1.78" 0.4"
June 27° -3.3° (1951) 38.9° (1970) 1.14" 0"
July 11° 32° -1.1° (1986) 40° (2005) 0.73" 0"
August 31° -1.1° (1932) 39.4° (1988) 0.49" 0"
September 24° -12.8° (1926) 36.7° (1990) 0.88" 0.7"
October -2° 17° -21.7° (1971) 32.2° (1980) 0.81" 2.5"
November -11° -33.3° (1985) 22.8° (1999) 0.47" 5"
December -17° -1° -43.3° (1983) 18.3° (1995) 0.36" 5.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 0.6° 17.8° -8° (1954) 29° (1987) 0.05" NA
May 2 1.1° 18.3° -7° (1954) 31° (1947) 0.05" NA
May 3 1.1° 18.3° -7° (1948) 31° (1947) 0.05" NA
May 4 1.1° 18.3° -6° (1984) 32° (1947) 0.05" NA
May 5 1.7° 18.9° -7° (1950) 30° (1966) 0.05" NA
May 6 1.7° 18.9° -6° (1982) 31° (1934) 0.06" NA
May 7 1.7° 18.9° -5° (1924) 31° (1934) 0.06" NA
May 8 2.2° 19.4° -4° (1968) 30° (1966) 0.06" NA
May 9 2.2° 19.4° -7° (1943) 29° (1987) 0.06" NA
May 10 2.2° 19.4° -6° (1927) 29° (1987) 0.06" NA
May 11 2.8° 20° -7° (1946) 31° (1940) 0.06" NA
May 12 2.8° 20° -6° (1953) 32° (1962) 0.06" NA
May 13 2.8° 20° -4° (1933) 31° (1960) 0.06" NA
May 14 3.3° 20.6° -5° (1974) 33° (1936) 0.06" NA
May 15 3.3° 20.6° -3° (1970) 31° (1984) 0.06" NA
May 16 3.3° 20.6° -4° (1974) 32° (1987) 0.06" NA
May 17 3.9° 21.1° -3° (1942) 32° (1948) 0.06" NA
May 18 3.9° 21.1° -3° (1942) 31° (1937) 0.06" NA
May 19 3.9° 21.1° -4° (1950) 32° (1992) 0.06" NA
May 20 3.9° 21.7° -4° (1946) 33° (1954) 0.06" NA
May 21 4.4° 21.7° -2° (2001) 34° (1954) 0.06" NA
May 22 4.4° 22.2° -1° (1931) 31° (1958) 0.06" NA
May 23 4.4° 22.2° -3° (1975) 31° (1967) 0.06" NA
May 24 22.2° -2° (1964) 32° (1967) 0.06" NA
May 25 22.8° -2° (1953) 32° (1988) 0.06" NA
May 26 22.8° -3° (1950) 31.7° (2006) 0.06" NA
May 27 23.3° -2° (1965) 32° (1919) 0.06" NA
May 28 5.6° 23.3° -2° (1973) 32° (1969) 0.06" NA
May 29 5.6° 23.3° -4° (1947) 34° (2003) 0.05" NA
May 30 5.6° 23.9° -1° (1973) 34° (2003) 0.05" NA
May 31 5.6° 23.9° -2° (1919) 36° (1984) 0.05" NA
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