Yellowstone National Park, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -19° -5° -45.6° (1963) 7.8° (2005) 1.91" 31.8"
February -18° -2° -45.6° (1985) 13.3° (1982) 1.49" 25.3"
March -16° -41.1° (1965) 16.1° (2004) 1.73" 27.9"
April -9° -32.2° (1975) 18.3° (1987) 1.48" 16.9"
May -4° 11° -18.9° (1967) 25.6° (2003) 2.06" 8.1"
June 16° -10° (1951) 28.3° (1988) 2.08" 0.8"
July 21° -6.7° (1985) 33.3° (2003) 1.66" 0"
August 21° -8.3° (1976) 32.8° (1969) 1.69" 0"
September -2° 16° -20.6° (1985) 28.3° (1956) 1.59" 1.6"
October -6° -25° (1991) 22.2° (1987) 1.32" 6.6"
November -12° -34.4° (1955) 17.2° (1949) 1.71" 24.8"
December -17° -4° -41.7° (1990) 8.9° (1981) 1.68" 26.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 3.3° 22.2° -4° (1975) 31° (2000) 0.05" NA
Aug 2 3.3° 22.2° -3° (1963) 31° (2000) 0.05" NA
Aug 3 3.3° 22.2° -2° (1963) 29° (1961) 0.05" NA
Aug 4 3.3° 22.2° -4° (1980) 29° (1961) 0.05" NA
Aug 5 3.3° 22.2° -2° (1980) 29° (1961) 0.05" NA
Aug 6 3.3° 22.2° -2° (1980) 29° (1961) 0.05" NA
Aug 7 3.3° 22.2° -2° (1950) 29° (2001) 0.05" NA
Aug 8 3.3° 22.2° -4° (1996) 28° (2001) 0.05" NA
Aug 9 3.3° 22.2° -4° (1985) 28° (1990) 0.05" NA
Aug 10 3.3° 22.2° -4° (1985) 33° (1969) 0.05" NA
Aug 11 3.3° 22.2° -3° (1977) 28° (1972) 0.05" NA
Aug 12 3.3° 22.2° -3° (1977) 28° (2003) 0.05" NA
Aug 13 2.8° 22.2° -3° (1985) 29° (2003) 0.05" NA
Aug 14 2.8° 21.7° -6° (1985) 29° (2003) 0.05" NA
Aug 15 2.8° 21.7° -4° (1974) 31° (2003) 0.05" NA
Aug 16 2.8° 21.7° -3° (1974) 28° (1971) 0.05" NA
Aug 17 2.8° 21.7° -5° (1985) 27° (1971) 0.05" NA
Aug 18 2.8° 21.7° -3° (1985) 26° (1957) 0.06" NA
Aug 19 2.2° 21.1° -3° (1996) 27° (1994) 0.06" NA
Aug 20 2.2° 21.1° -2° (1985) 27° (1971) 0.06" NA
Aug 21 2.2° 21.1° -3° (1963) 27° (2003) 0.06" NA
Aug 22 2.2° 21.1° -6° (1996) 26° (1976) 0.06" NA
Aug 23 2.2° 20.6° -6° (1985) 27° (1969) 0.06" NA
Aug 24 1.7° 20.6° -4° (1985) 29° (1970) 0.06" NA
Aug 25 1.7° 20.6° -6° (1992) 28° (1969) 0.06" NA
Aug 26 1.7° 20° -8° (1992) 27° (1988) 0.06" NA
Aug 27 1.1° 20° -8° (1976) 28° (2001) 0.06" NA
Aug 28 1.1° 20° -6° (1977) 27° (1971) 0.06" NA
Aug 29 1.1° 19.4° -6° (1975) 28° (1949) 0.06" NA
Aug 30 0.6° 19.4° -4° (1993) 27° (2001) 0.06" NA
Aug 31 0.6° 18.9° -6° (1956) 27° (2001) 0.06" NA
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