Yellowstone National Park, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° -50° (1963) 46° (2005) 1.65" 34.3"
February 28° -50° (1985) 56° (1982) 1.68" 30.4"
March 36° -42° (1965) 61° (2004) 1.8" 25.6"
April 18° 43° -26° (1975) 65° (1987) 1.78" 21.4"
May 28° 52° -2° (1967) 78° (2003) 2.47" 8.1"
June 35° 62° 14° (1951) 83° (1988) 2.25" 1.3"
July 42° 72° 20° (1985) 92° (2003) 1.62" 0"
August 40° 71° 17° (1976) 91° (1969) 1.6" 0.1"
September 32° 62° -5° (1985) 83° (1956) 1.46" 1.3"
October 24° 48° -13° (1991) 72° (1987) 1.18" 9.9"
November 14° 34° -30° (1955) 63° (1949) 1.85" 30.9"
December 25° -43° (1990) 48° (1981) 1.63" 30.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 36° 68° 23° (1952) 80° (1991) 0.05" 0"
Sep 2 36° 67° 20° (1974) 78° (1948) 0.05" 0"
Sep 3 35° 67° 19° (1975) 80° (1998) 0.05" 0"
Sep 4 35° 66° 21° (1975) 83° (1950) 0.05" 0"
Sep 5 35° 66° 22° (1975) 81° (2001) 0.05" 0.1"
Sep 6 35° 66° 22° (1993) 80° (1950) 0.04" 0"
Sep 7 34° 65° 16° (1992) 77° (1988) 0.05" 0"
Sep 8 34° 65° 20° (1962) 77° (1979) 0.04" 0"
Sep 9 34° 65° 16° (1962) 76° (1969) 0.04" 0.1"
Sep 10 33° 64° 23° (1983) 75° (1981) 0.05" 0"
Sep 11 33° 64° 19° (1989) 77° (1996) 0.04" 0"
Sep 12 33° 63° 19° (1979) 77° (1990) 0.04" 0"
Sep 13 33° 63° 18° (1974) 76° (1969) 0.04" 0.1"
Sep 14 32° 62° 16° (1952) 79° (1948) 0.05" 0"
Sep 15 32° 62° 18° (1971) 78° (1990) 0.05" 0"
Sep 16 32° 62° 15° (1965) 83° (1956) 0.05" 0.1"
Sep 17 31° 61° 14° (1965) 78° (2000) 0.05" 0"
Sep 18 31° 61° 10° (1965) 76° (1981) 0.05" 0"
Sep 19 31° 60° 5° (1983) 76° (1981) 0.05" 0.1"
Sep 20 31° 60° 2° (1983) 75° (1956) 0.05" 0.1"
Sep 21 30° 59° 8° (1983) 72° (1966) 0.06" 0"
Sep 22 30° 59° 17° (1956) 73° (1966) 0.05" 0.1"
Sep 23 30° 58° 14° (1971) 73° (1987) 0.05" 0"
Sep 24 29° 58° 10° (1972) 77° (1987) 0.05" 0.1"
Sep 25 29° 57° 14° (1984) 76° (2009) 0.05" 0.1"
Sep 26 29° 57° 12° (1972) 74° (2001) 0.06" 0.1"
Sep 27 29° 57° 13° (1999) 79° (1966) 0.05" 0"
Sep 28 28° 56° 8° (1999) 76° (2001) 0.05" 0.1"
Sep 29 28° 56° -5° (1985) 76° (2010) 0.05" 0.1"
Sep 30 28° 55° 0° (1985) 73° (1987) 0.05" 0.1"
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