Williston, North Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -19° -7° -41.1° (1916) 12.8° (1944) 0.54" 8.8"
February -14° -2° -45.6° (1936) 18.9° (1992) 0.39" 5.7"
March -8° -37.2° (1897) 28.9° (1910) 0.74" 7.4"
April -2° 13° -26.1° (1975) 33.3° (1980) 1.05" 3.7"
May 20° -12.2° (2005) 41.1° (1980) 1.88" 0.9"
June 10° 25° -3.3° (1998) 42.2° (1931) 2.36" 0"
July 13° 28° 1.1° (1967) 43.3° (1936) 2.28" 0"
August 12° 28° 0° (1911) 42.2° (1949) 1.48" 0"
September 21° -10.6° (1907) 40° (1983) 1.35" 0.3"
October -1° 14° -22.8° (2002) 33.9° (1963) 0.87" 1.7"
November -9° -32.8° (1996) 24.4° (1999) 0.65" 6.7"
December -17° -4° -45.6° (1983) 17.2° (1939) 0.57" 8.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 8.9° 25° 1° (1946) 40° (1983) 0.04" NA
Sep 2 8.9° 24.4° 0° (1974) 37° (1901) 0.04" NA
Sep 3 8.9° 24.4° 0° (1902) 39° (1978) 0.05" NA
Sep 4 8.3° 23.9° 1° (1956) 38° (1998) 0.05" NA
Sep 5 8.3° 23.9° -1° (1965) 36° (1978) 0.05" NA
Sep 6 7.8° 23.3° -1° (1929) 38° (1976) 0.05" NA
Sep 7 7.8° 23.3° -1° (1964) 39° (1980) 0.05" NA
Sep 8 7.2° 22.8° -1° (1929) 36° (1994) 0.05" NA
Sep 9 7.2° 22.8° -3° (1898) 38° (1994) 0.05" NA
Sep 10 6.7° 22.2° -2° (1896) 33° (1998) 0.05" NA
Sep 11 6.7° 22.2° -4° (1964) 34° (1939) 0.05" NA
Sep 12 6.1° 21.7° -4° (1989) 37° (1990) 0.05" NA
Sep 13 6.1° 21.7° -4° (1970) 32° (1969) 0.05" NA
Sep 14 6.1° 21.1° -6° (2007) 34° (1946) 0.05" NA
Sep 15 5.6° 21.1° -4° (1934) 38° (1948) 0.05" NA
Sep 16 5.6° 20.6° -5° (1973) 36° (1998) 0.05" NA
Sep 17 20.6° -8° (1902) 36° (2000) 0.05" NA
Sep 18 20.6° -2° (1991) 34° (2004) 0.04" NA
Sep 19 20° -6° (1918) 34° (1981) 0.04" NA
Sep 20 4.4° 20° -3° (1997) 32° (1922) 0.04" NA
Sep 21 4.4° 19.4° -8° (1995) 33° (1938) 0.04" NA
Sep 22 3.9° 19.4° -7° (1983) 34° (1938) 0.04" NA
Sep 23 3.9° 19.4° -3° (1985) 34° (1992) 0.04" NA
Sep 24 3.9° 18.9° -5° (1985) 33° (1992) 0.04" NA
Sep 25 3.3° 18.9° -8° (1928) 32° (1990) 0.04" NA
Sep 26 3.3° 18.9° -7° (1910) 33° (1983) 0.04" NA
Sep 27 3.3° 18.3° -6° (1942) 35° (1898) 0.04" NA
Sep 28 2.8° 18.3° -6° (1907) 33° (1897) 0.04" NA
Sep 29 2.8° 18.3° -11° (1907) 29° (1989) 0.04" NA
Sep 30 2.8° 17.8° -9° (2003) 33° (1963) 0.04" NA
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