Williston, North Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -18° -6° -41.1° (1916) 12.8° (1944) 0.59" 10"
February -14° -2° -45.6° (1936) 18.9° (1992) 0.41" 5.7"
March -8° -37.2° (1897) 28.9° (1910) 0.71" 6.2"
April -1° 14° -26.1° (1975) 33.3° (1980) 1" 3.7"
May 20° -12.2° (2005) 41.1° (1980) 1.92" 1.3"
June 10° 25° -3.3° (1998) 42.2° (1931) 2.52" 0"
July 13° 29° 1.1° (1967) 43.3° (1936) 2.54" 0"
August 12° 29° 0° (1911) 42.2° (1949) 1.45" 0"
September 22° -10.6° (1907) 40° (1983) 1.06" 0.2"
October -1° 14° -22.8° (2002) 33.9° (1963) 0.92" 2.6"
November -9° -32.8° (1996) 24.4° (1999) 0.65" 6.1"
December -16° -4° -45.6° (1983) 17.2° (1939) 0.62" 9.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 26° -18° (1946) 40° (1983) 0.04" 0"
Sep 2 26° -18° (1974) 37° (1901) 0.04" 0"
Sep 3 25° -18° (1902) 39° (1978) 0.04" 0"
Sep 4 25° -18° (1956) 38° (1998) 0.04" 0"
Sep 5 25° -18° (1965) 36° (1978) 0.04" 0"
Sep 6 24° -18° (1929) 38° (1976) 0.04" 0"
Sep 7 24° -18° (1964) 39° (1980) 0.03" 0"
Sep 8 24° -18° (1929) 36° (1994) 0.04" 0"
Sep 9 24° -18° (1898) 38° (1994) 0.04" 0"
Sep 10 23° -18° (1896) 33° (1998) 0.03" 0"
Sep 11 23° -18° (1964) 34° (1939) 0.03" 0"
Sep 12 23° -18° (1989) 37° (1990) 0.04" 0"
Sep 13 23° -18° (1970) 32° (1969) 0.03" 0"
Sep 14 22° -18° (2007) 34° (1946) 0.04" 0"
Sep 15 22° -18° (1934) 38° (1948) 0.03" 0"
Sep 16 22° -18° (1973) 36° (1998) 0.03" 0"
Sep 17 21° -18° (1902) 36° (2000) 0.03" 0"
Sep 18 21° -18° (2010) 34° (2004) 0.03" 0"
Sep 19 21° -18° (1918) 34° (2009) 0.04" 0"
Sep 20 21° -18° (1997) 32° (1922) 0.03" 0"
Sep 21 20° -18° (1995) 33° (1938) 0.03" 0"
Sep 22 20° -18° (1983) 34° (1938) 0.04" 0.1"
Sep 23 20° -18° (1985) 34° (1992) 0.03" 0"
Sep 24 20° -18° (1985) 33° (1992) 0.04" 0"
Sep 25 19° -18° (1928) 32° (1990) 0.04" 0"
Sep 26 19° -18° (1910) 33° (1983) 0.03" 0"
Sep 27 19° -18° (1942) 35° (1898) 0.04" 0"
Sep 28 19° -18° (1907) 33° (1897) 0.03" 0.1"
Sep 29 18° -18° (1907) 29° (1989) 0.04" 0"
Sep 30 18° -18° (2003) 33° (1963) 0.03" 0"
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