Rock Lake, North Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -5° 18° -43° (1943) 54° (2003) 0.6" 6"
February 24° -45° (1996) 60° (2000) 0.46" 5.2"
March 14° 35° -38° (1962) 74° (1946) 0.84" 5.7"
April 29° 55° -18° (1979) 96° (1980) 0.88" 2.5"
May 39° 68° 12° (1967) 105° (1934) 2.42" 0.3"
June 50° 76° 20° (1964) 103° (1933) 3.64" 0"
July 54° 81° 33° (1984) 109° (1936) 2.69" 0"
August 52° 81° 27° (1982) 105° (1936) 2.7" 0"
September 42° 71° 11° (1965) 100° (1978) 1.51" 0.1"
October 30° 56° -10° (1991) 93° (1992) 1.28" 2.4"
November 15° 36° -31° (1985) 73° (2001) 0.87" 6"
December 21° -40° (2000) 65° (1939) 0.74" 8.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 48° 77° 29° (1946) 93° (1936) 0.06" 0"
Sep 2 48° 77° 25° (1946) 97° (1983) 0.06" 0"
Sep 3 47° 76° 33° (1961) 95° (1978) 0.07" 0"
Sep 4 47° 76° 32° (1984) 96° (1933) 0.06" 0"
Sep 5 46° 76° 27° (1965) 100° (1978) 0.06" 0"
Sep 6 46° 75° 30° (1964) 100° (1976) 0.07" 0"
Sep 7 46° 75° 30° (1964) 94° (1980) 0.05" 0"
Sep 8 45° 74° 28° (1946) 97° (1978) 0.06" 0"
Sep 9 45° 74° 29° (1935) 93° (1998) 0.06" 0"
Sep 10 44° 74° 26° (1959) 92° (1998) 0.05" 0"
Sep 11 44° 73° 22° (1964) 89° (1939) 0.05" 0"
Sep 12 43° 73° 28° (1955) 91° (1939) 0.05" 0"
Sep 13 43° 72° 25° (1970) 90° (1969) 0.05" 0"
Sep 14 43° 72° 22° (1956) 92° (1946) 0.05" 0"
Sep 15 42° 71° 22° (1945) 90° (2006) 0.04" 0"
Sep 16 42° 71° 24° (1959) 87° (1935) 0.05" 0"
Sep 17 41° 71° 22° (1959) 95° (1989) 0.04" 0"
Sep 18 41° 70° 29° (1938) 93° (1939) 0.04" 0"
Sep 19 40° 70° 24° (1957) 90° (2008) 0.05" 0"
Sep 20 40° 69° 25° (1962) 89° (1960) 0.04" 0"
Sep 21 40° 69° 24° (1947) 95° (1938) 0.04" 0"
Sep 22 39° 68° 20° (1992) 99° (1938) 0.05" 0"
Sep 23 39° 68° 21° (1976) 89° (1935) 0.04" 0"
Sep 24 38° 67° 20° (1947) 87° (1949) 0.05" 0.1"
Sep 25 38° 67° 18° (1939) 93° (1938) 0.05" 0"
Sep 26 38° 67° 11° (1965) 89° (1952) 0.04" 0"
Sep 27 37° 66° 18° (1942) 91° (1952) 0.04" 0"
Sep 28 37° 66° 18° (1942) 86° (1943) 0.05" 0"
Sep 29 36° 65° 15° (1945) 86° (1943) 0.05" 0"
Sep 30 36° 65° 20° (1947) 90° (1989) 0.04" 0"
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