West Yellowstone, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° -60° (1963) 47° (1986) 2.16" 29.6"
February 29° -66° (1933) 56° (1958) 1.8" 28.6"
March 12° 38° -43° (1955) 61° (1966) 1.78" 22.9"
April 21° 47° -26° (1936) 76° (1939) 1.77" 12.6"
May 29° 59° 0° (1954) 88° (1936) 2.45" 3.1"
June 36° 68° 18° (1924) 93° (1936) 2.31" 0.2"
July 40° 77° 20° (1948) 97° (1936) 1.77" 0"
August 37° 77° 15° (1928) 96° (1961) 1.16" 0"
September 30° 66° -9° (1926) 91° (1950) 1.37" 0.3"
October 21° 50° -20° (1971) 83° (1934) 1.56" 8.1"
November 10° 32° -38° (1929) 64° (1962) 2.1" 28"
December -1° 22° -59° (1924) 54° (1946) 2.67" 36.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 25° 53° 9° (1929) 73° (1981) 0.07" NA
May 2 25° 54° 0° (1954) 71° (1966) 0.07" NA
May 3 25° 54° 7° (1935) 76° (1966) 0.07" NA
May 4 26° 55° 8° (1935) 79° (1936) 0.07" NA
May 5 26° 55° 5° (1982) 78° (1966) 0.07" NA
May 6 26° 55° 12° (1924) 80° (1992) 0.07" NA
May 7 27° 56° 11° (1924) 79° (1992) 0.08" NA
May 8 27° 56° 12° (1929) 74° (1987) 0.07" NA
May 9 27° 57° 10° (1929) 77° (1954) 0.07" NA
May 10 27° 57° 14° (1931) 78° (1940) 0.07" NA
May 11 28° 57° 12° (1929) 80° (1960) 0.07" NA
May 12 28° 58° 12° (1943) 79° (1960) 0.08" NA
May 13 28° 58° 15° (1933) 81° (1932) 0.07" NA
May 14 29° 58° 15° (1983) 79° (1936) 0.08" NA
May 15 29° 59° 16° (1943) 79° (1987) 0.08" NA
May 16 29° 59° 16° (1929) 80° (1988) 0.07" NA
May 17 29° 59° 15° (1929) 75° (1948) 0.08" NA
May 18 30° 60° 16° (1942) 79° (1954) 0.08" NA
May 19 30° 60° 18° (1929) 83° (1954) 0.08" NA
May 20 30° 60° 16° (1946) 83° (1958) 0.08" NA
May 21 30° 60° 20° (1938) 78° (1958) 0.08" NA
May 22 31° 61° 20° (1938) 80° (1942) 0.09" NA
May 23 31° 61° 13° (1966) 79° (1979) 0.09" NA
May 24 31° 61° 20° (1944) 83° (1934) 0.08" NA
May 25 31° 61° 18° (1950) 80° (1969) 0.09" NA
May 26 31° 62° 14° (1935) 84° (1936) 0.09" NA
May 27 32° 62° 18° (1932) 82° (1934) 0.09" NA
May 28 32° 62° 19° (1933) 84° (1934) 0.09" NA
May 29 32° 62° 20° (1933) 84° (1936) 0.09" NA
May 30 32° 63° 22° (1924) 88° (1936) 0.09" NA
May 31 33° 63° 19° (1982) 84° (1986) 0.09" NA
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