Grand Portage, Minnesota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -3° 19° -39° (1996) 50° (2006) 1.33" NA
February 24° -43° (1996) 55° (1991) 0.8" NA
March 14° 35° -25° (1989) 65° (2007) 1.55" NA
April 27° 47° -4° (1995) 82° (1965) 2.22" NA
May 38° 61° 18° (1967) 88° (1977) 2.86" NA
June 46° 69° 28° (1998) 95° (1995) 3.19" NA
July 51° 75° 38° (1968) 94° (2006) 3.45" NA
August 52° 73° 34° (1976) 94° (2001) 3.1" NA
September 43° 64° 24° (1965) 86° (1978) 3.68" NA
October 34° 52° 13° (1976) 78° (2003) 3.25" NA
November 20° 37° -17° (1976) 71° (1999) 2.37" NA
December 24° -28° (1967) 52° (1962) 1.56" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 53° 76° 43° (1978) 89° (2007) 0.1" NA
Aug 2 53° 76° 43° (1977) 88° (2007) 0.1" NA
Aug 3 53° 76° 40° (1978) 86° (1964) 0.1" NA
Aug 4 53° 76° 43° (1989) 86° (2006) 0.1" NA
Aug 5 53° 75° 44° (1991) 86° (2001) 0.1" NA
Aug 6 53° 75° 44° (1990) 85° (1961) 0.1" NA
Aug 7 53° 75° 46° (2002) 94° (2001) 0.1" NA
Aug 8 53° 75° 44° (1994) 92° (2001) 0.1" NA
Aug 9 53° 75° 41° (1962) 83° (1971) 0.1" NA
Aug 10 53° 75° 41° (1977) 89° (1998) 0.1" NA
Aug 11 53° 74° 40° (1968) 84° (2000) 0.09" NA
Aug 12 53° 74° 43° (1977) 87° (1991) 0.09" NA
Aug 13 53° 74° 41° (1961) 91° (1991) 0.09" NA
Aug 14 53° 74° 42° (1971) 91° (1991) 0.09" NA
Aug 15 52° 74° 35° (1977) 89° (1991) 0.1" NA
Aug 16 52° 73° 38° (1963) 90° (2003) 0.1" NA
Aug 17 52° 73° 43° (1962) 80° (1990) 0.1" NA
Aug 18 52° 73° 38° (1968) 81° (2006) 0.1" NA
Aug 19 52° 73° 35° (2004) 85° (2003) 0.1" NA
Aug 20 52° 73° 37° (1977) 85° (1976) 0.1" NA
Aug 21 51° 72° 37° (2004) 83° (1976) 0.1" NA
Aug 22 51° 72° 38° (1967) 87° (1976) 0.1" NA
Aug 23 51° 72° 41° (1967) 81° (1969) 0.1" NA
Aug 24 51° 72° 35° (1977) 83° (1959) 0.1" NA
Aug 25 50° 71° 35° (1977) 88° (2003) 0.1" NA
Aug 26 50° 71° 43° (1968) 85° (1997) 0.1" NA
Aug 27 50° 71° 40° (1968) 86° (1976) 0.1" NA
Aug 28 49° 70° 39° (1965) 87° (1999) 0.11" NA
Aug 29 49° 70° 34° (1976) 87° (1991) 0.11" NA
Aug 30 49° 70° 38° (1976) 88° (1991) 0.11" NA
Aug 31 48° 69° 41° (1971) 85° (1960) 0.11" NA
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