Gillette, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 31° -36° (1930) 67° (1981) 0.56" 8.7"
February 15° 37° -40° (1936) 70° (1982) 0.54" 7.8"
March 21° 45° -23° (1960) 80° (2004) 1" 11"
April 29° 55° -12° (1936) 88° (1980) 1.97" 10.4"
May 38° 64° 11° (1954) 95° (1934) 2.95" 2.1"
June 48° 76° 28° (1969) 104° (1954) 2.64" 0.1"
July 54° 85° 35° (1968) 107° (1981) 1.78" 0"
August 53° 83° 32° (1964) 106° (1949) 1.33" 0"
September 43° 72° 10° (1926) 102° (1978) 1.43" 0.8"
October 32° 59° -12° (1925) 89° (1963) 1.57" 4.7"
November 20° 42° -26° (1959) 75° (2006) 0.7" 8.5"
December 12° 33° -37° (1983) 69° (1939) 0.67" 10.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 15° 36° -19° (1985) 64° (1973) 0.02" NA
Dec 2 15° 36° -24° (1985) 62° (1926) 0.02" NA
Dec 3 15° 35° -6° (1978) 63° (1941) 0.02" NA
Dec 4 14° 35° -10° (1972) 64° (1965) 0.02" NA
Dec 5 14° 35° -26° (1972) 69° (1939) 0.02" NA
Dec 6 14° 35° -27° (1972) 69° (1939) 0.02" NA
Dec 7 14° 35° -27° (1972) 56° (1939) 0.02" NA
Dec 8 13° 34° -28° (1972) 65° (1939) 0.02" NA
Dec 9 13° 34° -29° (1977) 63° (1975) 0.02" NA
Dec 10 13° 34° -20° (1932) 66° (1981) 0.02" NA
Dec 11 13° 34° -22° (1932) 59° (1980) 0.02" NA
Dec 12 13° 33° -22° (1932) 59° (1988) 0.02" NA
Dec 13 12° 33° -22° (1926) 59° (1998) 0.02" NA
Dec 14 12° 33° -23° (1926) 60° (1998) 0.02" NA
Dec 15 12° 33° -16° (1945) 58° (1980) 0.02" NA
Dec 16 12° 33° -27° (1964) 61° (1939) 0.03" NA
Dec 17 12° 32° -31° (1964) 61° (1980) 0.03" NA
Dec 18 12° 32° -27° (1983) 63° (1979) 0.03" NA
Dec 19 11° 32° -23° (1990) 59° (1979) 0.03" NA
Dec 20 11° 32° -30° (1990) 60° (1954) 0.03" NA
Dec 21 11° 32° -33° (1990) 59° (1954) 0.02" NA
Dec 22 11° 32° -36° (1990) 60° (1954) 0.02" NA
Dec 23 11° 32° -30° (1983) 60° (1933) 0.02" NA
Dec 24 11° 31° -37° (1983) 55° (1936) 0.02" NA
Dec 25 11° 31° -28° (1983) 52° (1947) 0.02" NA
Dec 26 10° 31° -26° (1996) 55° (1972) 0.02" NA
Dec 27 10° 31° -11° (1941) 57° (1980) 0.02" NA
Dec 28 10° 31° -22° (1990) 56° (2002) 0.02" NA
Dec 29 10° 31° -35° (1990) 60° (1929) 0.02" NA
Dec 30 10° 31° -33° (1990) 54° (1929) 0.02" NA
Dec 31 10° 31° -30° (1927) 52° (1963) 0.02" NA
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