Yellowstone Natl Park, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -3° 23° -50° (1963) 46° (2005) 1.91" 31.8"
February -1° 28° -50° (1985) 56° (1982) 1.49" 25.3"
March 35° -42° (1965) 61° (2004) 1.73" 27.9"
April 15° 42° -26° (1975) 65° (1987) 1.48" 16.9"
May 25° 51° -2° (1967) 78° (2003) 2.06" 8.1"
June 33° 61° 14° (1951) 83° (1988) 2.08" 0.8"
July 37° 70° 20° (1985) 92° (2003) 1.66" 0"
August 36° 70° 17° (1976) 91° (1969) 1.69" 0"
September 29° 60° -5° (1985) 83° (1956) 1.59" 1.6"
October 21° 48° -13° (1991) 72° (1987) 1.32" 6.6"
November 10° 33° -30° (1955) 63° (1949) 1.71" 24.8"
December 25° -43° (1990) 48° (1981) 1.68" 26.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 28° -12° (1991) 45° (1999) 0.06" NA
Dec 2 27° -16° (1991) 43° (1959) 0.06" NA
Dec 3 27° -15° (1978) 45° (1975) 0.06" NA
Dec 4 27° -23° (1992) 40° (1965) 0.06" NA
Dec 5 27° -38° (1972) 41° (1963) 0.06" NA
Dec 6 27° -23° (1978) 42° (1965) 0.05" NA
Dec 7 26° -20° (1978) 42° (2006) 0.05" NA
Dec 8 26° -29° (1978) 39° (1965) 0.05" NA
Dec 9 26° -32° (1972) 38° (1965) 0.05" NA
Dec 10 26° -34° (1972) 48° (1981) 0.05" NA
Dec 11 25° -27° (1961) 44° (1990) 0.05" NA
Dec 12 25° -27° (1961) 39° (1962) 0.05" NA
Dec 13 25° -22° (1967) 38° (2004) 0.05" NA
Dec 14 25° -29° (1972) 43° (1998) 0.05" NA
Dec 15 25° -30° (1955) 45° (1962) 0.05" NA
Dec 16 25° -29° (1972) 42° (1980) 0.05" NA
Dec 17 24° -38° (1964) 41° (1962) 0.05" NA
Dec 18 24° -30° (1983) 43° (1980) 0.05" NA
Dec 19 24° -25° (1984) 45° (1979) 0.05" NA
Dec 20 24° -30° (1990) 46° (1979) 0.05" NA
Dec 21 24° -42° (1990) 40° (1958) 0.05" NA
Dec 22 24° -43° (1990) 38° (1958) 0.05" NA
Dec 23 -1° 24° -38° (1990) 38° (1955) 0.05" NA
Dec 24 -1° 23° -42° (1983) 40° (1963) 0.06" NA
Dec 25 -1° 23° -32° (1983) 38° (1950) 0.06" NA
Dec 26 -1° 23° -27° (1948) 38° (1980) 0.06" NA
Dec 27 -1° 23° -26° (1954) 37° (1980) 0.06" NA
Dec 28 -1° 23° -34° (1983) 43° (1980) 0.06" NA
Dec 29 -2° 23° -34° (1978) 41° (1980) 0.06" NA
Dec 30 -2° 23° -37° (1978) 38° (1980) 0.06" NA
Dec 31 -2° 23° -42° (1978) 39° (1980) 0.06" NA
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