Apostle Islands National Lak, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° -33° (1951) 53° (1973) 1.69" 26.8"
February 10° 27° -34° (1996) 61° (1984) 1.1" 13.6"
March 20° 37° -17° (1989) 78° (1986) 1.74" 15.1"
April 31° 50° 2° (1995) 89° (1952) 2.84" 5.6"
May 41° 63° 17° (2004) 95° (1969) 3.26" 0.6"
June 50° 71° 22° (1984) 98° (1961) 3.64" 0"
July 56° 76° 36° (1972) 101° (1988) 3.53" 0"
August 56° 76° 34° (1962) 99° (1961) 3.45" 0"
September 49° 67° 27° (1967) 99° (1976) 3.7" 0"
October 38° 54° 15° (1988) 88° (1963) 3.17" 0.7"
November 26° 39° -6° (1958) 76° (1978) 2.45" 14.3"
December 12° 26° -24° (1996) 61° (1982) 1.66" 26.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 54° 72° 35° (1974) 92° (1961) 0.12" 0"
Sep 2 53° 72° 39° (1976) 93° (1983) 0.13" 0"
Sep 3 53° 72° 40° (1974) 91° (1960) 0.12" 0"
Sep 4 53° 72° 39° (1961) 89° (1948) 0.12" 0"
Sep 5 53° 71° 39° (1962) 88° (1948) 0.13" 0"
Sep 6 52° 71° 41° (1965) 91° (1960) 0.13" 0"
Sep 7 52° 70° 39° (1986) 99° (1976) 0.13" 0"
Sep 8 52° 70° 34° (1995) 93° (1976) 0.12" 0"
Sep 9 51° 70° 32° (1975) 93° (1961) 0.13" 0"
Sep 10 51° 69° 33° (1967) 87° (1961) 0.12" 0"
Sep 11 51° 69° 33° (1965) 88° (1976) 0.13" 0"
Sep 12 50° 69° 35° (1955) 93° (1948) 0.12" 0"
Sep 13 50° 68° 29° (1963) 84° (1952) 0.13" 0"
Sep 14 50° 68° 33° (1970) 84° (1990) 0.13" 0"
Sep 15 49° 67° 29° (1964) 82° (1997) 0.13" 0"
Sep 16 49° 67° 35° (1986) 94° (1948) 0.13" 0"
Sep 17 49° 66° 28° (1959) 90° (1948) 0.12" 0"
Sep 18 48° 66° 37° (1991) 87° (1955) 0.13" 0"
Sep 19 48° 66° 35° (1971) 86° (1985) 0.12" 0"
Sep 20 47° 65° 29° (1973) 83° (1969) 0.12" 0"
Sep 21 47° 65° 32° (1956) 79° (1970) 0.12" 0"
Sep 22 47° 64° 31° (1972) 79° (1958) 0.13" 0"
Sep 23 46° 64° 29° (1995) 84° (1958) 0.12" 0"
Sep 24 46° 63° 28° (1976) 78° (1958) 0.12" 0"
Sep 25 45° 63° 32° (1975) 83° (1950) 0.12" 0"
Sep 26 45° 63° 29° (1965) 77° (1950) 0.12" 0"
Sep 27 45° 62° 27° (1965) 84° (1979) 0.11" 0"
Sep 28 44° 62° 30° (1964) 84° (1987) 0.12" 0"
Sep 29 44° 61° 27° (1967) 77° (1989) 0.12" 0"
Sep 30 44° 61° 31° (1993) 81° (1976) 0.11" 0"
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