Hays, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° -41° (1969) 65° (1968) 0.74" NA
February 12° 36° -32° (1989) 67° (1988) 0.5" NA
March 20° 44° -33° (1960) 72° (1966) 1.16" NA
April 30° 56° -9° (1967) 88° (1980) 1.6" NA
May 39° 66° 11° (1967) 90° (1972) 2.72" NA
June 46° 75° 28° (1983) 99° (1988) 2.6" NA
July 50° 81° 34° (1982) 100° (1963) 1.69" NA
August 49° 80° 32° (1988) 107° (1961) 1.14" NA
September 40° 70° 16° (1957) 95° (1988) 1.42" NA
October 31° 59° -14° (1984) 86° (1987) 0.93" NA
November 18° 42° -31° (1985) 78° (1975) 0.86" NA
December 10° 34° -38° (1972) 65° (1980) 0.76" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 35° 62° 21° (1984) 83° (1981) 0.07" NA
May 2 35° 62° 19° (1976) 83° (1985) 0.07" NA
May 3 36° 62° 11° (1967) 82° (1966) 0.08" NA
May 4 36° 63° 16° (1967) 85° (1966) 0.08" NA
May 5 36° 63° 21° (1967) 83° (1987) 0.08" NA
May 6 37° 63° 26° (1960) 82° (1966) 0.08" NA
May 7 37° 63° 24° (1984) 80° (1987) 0.08" NA
May 8 37° 64° 26° (1984) 83° (1987) 0.08" NA
May 9 37° 64° 24° (1983) 88° (1987) 0.08" NA
May 10 38° 64° 19° (1983) 83° (1989) 0.08" NA
May 11 38° 65° 23° (1966) 87° (1958) 0.09" NA
May 12 38° 65° 15° (1966) 88° (1960) 0.09" NA
May 13 39° 65° 23° (1959) 86° (1988) 0.09" NA
May 14 39° 66° 28° (1958) 83° (1984) 0.09" NA
May 15 39° 66° 30° (1960) 85° (1987) 0.09" NA
May 16 39° 66° 28° (1960) 86° (1988) 0.09" NA
May 17 40° 66° 30° (1986) 85° (1972) 0.09" NA
May 18 40° 67° 27° (1968) 78° (1967) 0.09" NA
May 19 40° 67° 24° (1968) 84° (1964) 0.09" NA
May 20 41° 67° 27° (1979) 87° (1964) 0.09" NA
May 21 41° 68° 26° (1969) 84° (1964) 0.09" NA
May 22 41° 68° 30° (1959) 87° (1988) 0.09" NA
May 23 41° 68° 27° (1974) 86° (1985) 0.09" NA
May 24 41° 68° 32° (1981) 87° (1988) 0.09" NA
May 25 42° 69° 33° (1972) 85° (1958) 0.09" NA
May 26 42° 69° 30° (1964) 88° (1966) 0.09" NA
May 27 42° 69° 30° (1984) 88° (1966) 0.1" NA
May 28 42° 70° 30° (1982) 90° (1958) 0.1" NA
May 29 43° 70° 30° (1982) 89° (1958) 0.1" NA
May 30 43° 70° 26° (1982) 90° (1972) 0.1" NA
May 31 43° 70° 26° (1982) 85° (1963) 0.1" NA
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