Apostle Islands National Lak, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° -33° (1951) 53° (1973) 1.78" 24.9"
February 27° -34° (1996) 61° (1984) 0.97" 10.3"
March 18° 37° -17° (1989) 78° (1986) 2.2" 13"
April 30° 50° 2° (1995) 89° (1952) 2.25" 4.6"
May 40° 64° 17° (2004) 95° (1969) 3.18" 0.3"
June 49° 72° 22° (1984) 98° (1961) 3.84" 0"
July 56° 77° 36° (1972) 101° (1988) 4.06" 0"
August 55° 75° 34° (1962) 99° (1961) 3.99" 0"
September 46° 66° 27° (1967) 99° (1976) 3.78" 0"
October 36° 54° 15° (1988) 88° (1963) 2.82" 0.5"
November 24° 38° -6° (1958) 76° (1978) 2.86" 11.8"
December 11° 26° -24° (1996) 61° (1982) 1.73" 22.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 35° 57° 21° (1961) 85° (1952) 0.08" NA
May 2 35° 58° 22° (1961) 84° (1992) 0.09" NA
May 3 36° 58° 17° (2004) 92° (1949) 0.09" NA
May 4 36° 59° 24° (1954) 89° (1980) 0.09" NA
May 5 36° 59° 20° (2004) 86° (1980) 0.09" NA
May 6 37° 60° 22° (1989) 82° (1993) 0.09" NA
May 7 37° 60° 25° (1974) 86° (2000) 0.09" NA
May 8 37° 61° 27° (1972) 87° (1953) 0.09" NA
May 9 38° 61° 25° (1966) 83° (1992) 0.09" NA
May 10 38° 62° 20° (1966) 85° (1993) 0.1" NA
May 11 38° 62° 25° (1963) 85° (1961) 0.1" NA
May 12 39° 62° 26° (1967) 87° (1977) 0.1" NA
May 13 39° 63° 25° (1997) 88° (1977) 0.1" NA
May 14 39° 63° 29° (1964) 84° (1991) 0.1" NA
May 15 40° 64° 25° (2004) 86° (1960) 0.1" NA
May 16 40° 64° 25° (1956) 87° (1998) 0.1" NA
May 17 40° 64° 25° (1988) 85° (1972) 0.1" NA
May 18 41° 65° 26° (1981) 89° (1962) 0.11" NA
May 19 41° 65° 28° (1969) 85° (1962) 0.11" NA
May 20 41° 65° 27° (2002) 85° (1972) 0.11" NA
May 21 41° 66° 29° (1971) 92° (1964) 0.11" NA
May 22 42° 66° 24° (1967) 93° (1964) 0.11" NA
May 23 42° 66° 30° (1956) 88° (1964) 0.11" NA
May 24 42° 67° 30° (1976) 81° (1951) 0.11" NA
May 25 43° 67° 29° (1969) 85° (1965) 0.11" NA
May 26 43° 67° 24° (1961) 89° (1978) 0.11" NA
May 27 43° 68° 30° (1994) 83° (1977) 0.11" NA
May 28 43° 68° 33° (1970) 95° (1969) 0.12" NA
May 29 44° 68° 31° (1984) 90° (1986) 0.12" NA
May 30 44° 68° 31° (1990) 91° (1986) 0.12" NA
May 31 44° 69° 28° (1969) 89° (2002) 0.12" NA
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