Gallatin Gateway, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 33° -32° (1980) 61° (2005) 0.55" 9.8"
February 17° 39° -35° (1989) 64° (1995) 0.54" 7.4"
March 23° 47° -20° (1976) 76° (2004) 1.1" 12.7"
April 30° 56° -3° (1997) 81° (1994) 1.61" 9.4"
May 38° 65° 16° (1983) 90° (2003) 2.81" 2.1"
June 44° 74° 28° (1979) 98° (1990) 2.52" 0.2"
July 49° 82° 32° (1981) 101° (2007) 1.5" 0"
August 48° 82° 26° (1992) 100° (2003) 1.36" 0"
September 40° 71° 13° (1985) 95° (2007) 1.59" 0.6"
October 31° 59° -10° (1991) 85° (1997) 1.36" 4.4"
November 20° 42° -23° (1977) 75° (1999) 0.89" 9.3"
December 12° 34° -39° (1983) 63° (1980) 0.62" 8.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 34° 61° 16° (1967) 80° (1981) 0.07" NA
May 2 34° 61° 22° (2005) 84° (1985) 0.08" NA
May 3 35° 62° 23° (2001) 80° (1986) 0.08" NA
May 4 35° 62° 20° (1967) 80° (2004) 0.08" NA
May 5 35° 62° 24° (1967) 80° (1970) 0.08" NA
May 6 35° 63° 23° (1968) 82° (1992) 0.08" NA
May 7 36° 63° 25° (1979) 82° (1987) 0.08" NA
May 8 36° 63° 27° (1969) 81° (1987) 0.08" NA
May 9 36° 63° 26° (1968) 80° (1994) 0.09" NA
May 10 36° 64° 25° (1979) 79° (1987) 0.09" NA
May 11 37° 64° 17° (1967) 82° (1993) 0.09" NA
May 12 37° 64° 24° (1983) 90° (2001) 0.09" NA
May 13 37° 64° 16° (1983) 88° (2001) 0.09" NA
May 14 37° 65° 23° (1983) 82° (2001) 0.09" NA
May 15 38° 65° 27° (1986) 83° (1978) 0.09" NA
May 16 38° 65° 23° (1974) 86° (1988) 0.09" NA
May 17 38° 66° 26° (1986) 85° (1988) 0.09" NA
May 18 38° 66° 29° (2003) 86° (2006) 0.09" NA
May 19 39° 66° 23° (2003) 85° (2006) 0.09" NA
May 20 39° 66° 25° (1989) 81° (1980) 0.09" NA
May 21 39° 67° 28° (2001) 83° (1980) 0.1" NA
May 22 39° 67° 27° (1984) 86° (1980) 0.1" NA
May 23 40° 67° 28° (1995) 83° (1980) 0.1" NA
May 24 40° 68° 29° (1989) 86° (1988) 0.1" NA
May 25 40° 68° 29° (2004) 85° (2001) 0.1" NA
May 26 40° 68° 28° (1967) 85° (1969) 0.1" NA
May 27 40° 68° 30° (1973) 85° (1969) 0.1" NA
May 28 41° 69° 30° (2006) 86° (2003) 0.1" NA
May 29 41° 69° 28° (1982) 90° (2003) 0.1" NA
May 30 41° 69° 30° (1977) 85° (2003) 0.1" NA
May 31 41° 69° 28° (1982) 85° (1986) 0.1" NA
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