Grantsdale, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 34° -36° (1937) 63° (1989) 1.11" NA
February 20° 41° -39° (1899) 71° (1995) 0.86" NA
March 26° 50° -14° (1955) 82° (1941) 0.91" NA
April 32° 58° 1° (1936) 90° (1936) 1.05" NA
May 39° 66° 0° (1901) 102° (1936) 1.75" NA
June 45° 74° 24° (1924) 100° (1933) 1.62" NA
July 49° 83° 31° (1971) 105° (1895) 1" NA
August 48° 82° 19° (1895) 103° (1969) 1.14" NA
September 40° 71° 10° (1895) 98° (1998) 1.07" NA
October 31° 59° -1° (1935) 90° (1901) 0.78" NA
November 23° 42° -24° (1955) 76° (1999) 1.11" NA
December 17° 34° -31° (1972) 66° (1957) 1.14" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 45° 77° 28° (1895) 98° (1967) 0.04" NA
Sep 2 44° 77° 29° (1895) 98° (1998) 0.04" NA
Sep 3 44° 76° 28° (1895) 94° (1931) 0.04" NA
Sep 4 44° 76° 24° (1895) 94° (1998) 0.04" NA
Sep 5 43° 75° 19° (1895) 95° (1955) 0.04" NA
Sep 6 43° 75° 17° (1895) 93° (1944) 0.04" NA
Sep 7 43° 74° 10° (1895) 98° (1931) 0.04" NA
Sep 8 42° 74° 21° (1895) 90° (1944) 0.04" NA
Sep 9 42° 73° 28° (1895) 91° (1935) 0.04" NA
Sep 10 42° 73° 28° (1895) 95° (1935) 0.04" NA
Sep 11 41° 73° 27° (1895) 95° (1935) 0.04" NA
Sep 12 41° 72° 20° (1895) 92° (1953) 0.04" NA
Sep 13 41° 72° 20° (1895) 89° (1953) 0.04" NA
Sep 14 41° 71° 19° (1895) 90° (1948) 0.04" NA
Sep 15 40° 71° 22° (1895) 92° (2002) 0.04" NA
Sep 16 40° 71° 21° (1895) 87° (1989) 0.04" NA
Sep 17 40° 70° 19° (1895) 90° (1998) 0.04" NA
Sep 18 39° 70° 24° (1965) 90° (1984) 0.03" NA
Sep 19 39° 69° 27° (1965) 90° (1901) 0.03" NA
Sep 20 39° 69° 19° (1895) 87° (1899) 0.03" NA
Sep 21 38° 69° 16° (1895) 94° (1936) 0.03" NA
Sep 22 38° 68° 16° (1895) 89° (1938) 0.03" NA
Sep 23 38° 68° 17° (1895) 87° (1903) 0.03" NA
Sep 24 37° 68° 18° (1934) 90° (2001) 0.03" NA
Sep 25 37° 67° 25° (1933) 88° (2001) 0.03" NA
Sep 26 37° 67° 21° (1972) 89° (1899) 0.03" NA
Sep 27 37° 67° 25° (1961) 90° (1899) 0.03" NA
Sep 28 36° 66° 25° (1999) 87° (1967) 0.03" NA
Sep 29 36° 66° 21° (1985) 83° (1963) 0.03" NA
Sep 30 36° 66° 18° (1985) 86° (1963) 0.03" NA
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