Dillon, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 34° -36° (1937) 60° (1953) 0.37" NA
February 17° 41° -40° (1933) 65° (1996) 0.25" NA
March 23° 48° -26° (1896) 74° (1969) 0.66" NA
April 29° 57° -3° (1982) 84° (1946) 1.22" NA
May 37° 66° 15° (1967) 91° (1954) 2.25" NA
June 43° 75° 23° (2001) 94° (2002) 1.87" NA
July 47° 84° 30° (1955) 102° (2002) 1.19" NA
August 46° 82° 25° (1910) 100° (1940) 1.18" NA
September 39° 72° 9° (1926) 94° (1998) 1.07" NA
October 31° 60° -13° (1935) 86° (1992) 0.85" NA
November 21° 43° -31° (1955) 79° (1908) 0.39" NA
December 14° 34° -37° (1990) 65° (1939) 0.35" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 33° 62° 17° (1954) 81° (1985) 0.06" NA
May 2 33° 62° 15° (1954) 85° (1947) 0.06" NA
May 3 34° 63° 19° (1959) 83° (1966) 0.06" NA
May 4 34° 63° 23° (1982) 84° (1966) 0.06" NA
May 5 34° 63° 18° (1977) 82° (1966) 0.06" NA
May 6 34° 63° 19° (1968) 86° (1992) 0.07" NA
May 7 35° 64° 21° (1961) 86° (1992) 0.07" NA
May 8 35° 64° 19° (1965) 86° (1987) 0.07" NA
May 9 35° 64° 19° (1965) 82° (1928) 0.07" NA
May 10 35° 65° 19° (2006) 83° (1940) 0.07" NA
May 11 36° 65° 15° (1967) 84° (1993) 0.07" NA
May 12 36° 65° 21° (1966) 85° (1988) 0.07" NA
May 13 36° 65° 17° (1943) 85° (1993) 0.07" NA
May 14 36° 66° 20° (1983) 84° (1987) 0.07" NA
May 15 37° 66° 20° (1896) 84° (1912) 0.07" NA
May 16 37° 66° 21° (1974) 84° (1901) 0.07" NA
May 17 37° 67° 19° (1896) 87° (1901) 0.08" NA
May 18 37° 67° 21° (1965) 86° (1954) 0.08" NA
May 19 38° 67° 20° (2003) 91° (1954) 0.08" NA
May 20 38° 67° 24° (2003) 85° (1958) 0.08" NA
May 21 38° 68° 24° (1896) 83° (1919) 0.08" NA
May 22 38° 68° 26° (1953) 85° (1967) 0.08" NA
May 23 39° 68° 24° (1986) 85° (1919) 0.08" NA
May 24 39° 69° 27° (1971) 85° (1919) 0.08" NA
May 25 39° 69° 22° (1950) 86° (1999) 0.08" NA
May 26 39° 69° 26° (1904) 86° (1986) 0.08" NA
May 27 39° 70° 24° (1911) 90° (1986) 0.08" NA
May 28 40° 70° 25° (1947) 90° (2003) 0.08" NA
May 29 40° 70° 22° (1951) 90° (2003) 0.08" NA
May 30 40° 70° 29° (1978) 89° (1986) 0.07" NA
May 31 40° 71° 25° (1950) 89° (1986) 0.07" NA
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