Lyonville, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -32° (1970) 67° (1998) 0.28" 4.2"
February 14° 34° -32° (1994) 73° (2000) 0.59" 6.1"
March 24° 45° -24° (1962) 86° (1978) 1.43" 6.7"
April 36° 60° 3° (1975) 97° (1992) 2.49" 1.7"
May 47° 72° 16° (1980) 99° (1967) 3.6" 0"
June 57° 81° 32° (1998) 110° (1988) 3.19" 0"
July 62° 87° 37° (1971) 111° (2002) 2.88" 0"
August 60° 86° 36° (1950) 111° (1988) 2.21" 0"
September 49° 77° 22° (1951) 105° (1979) 2.09" 0"
October 37° 62° 8° (1991) 97° (1963) 1.59" 1"
November 23° 42° -18° (1959) 81° (1999) 0.9" 4"
December 11° 30° -32° (1983) 72° (1998) 0.34" 5.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 16° 35° -8° (1960) 72° (1998) 0.02" NA
Dec 2 16° 34° -15° (1985) 71° (1998) 0.02" NA
Dec 3 16° 34° -7° (1985) 58° (1962) 0.02" NA
Dec 4 15° 34° -13° (1978) 58° (1970) 0.01" NA
Dec 5 15° 33° -10° (1950) 61° (1988) 0.01" NA
Dec 6 14° 33° -21° (1950) 55° (1963) 0.01" NA
Dec 7 14° 33° -20° (1972) 60° (1984) 0.01" NA
Dec 8 14° 32° -13° (1976) 62° (1984) 0.01" NA
Dec 9 13° 32° -18° (1958) 61° (1957) 0.01" NA
Dec 10 13° 32° -15° (1972) 66° (1990) 0.01" NA
Dec 11 13° 32° -13° (1962) 62° (1990) 0.01" NA
Dec 12 12° 31° -20° (1962) 54° (1957) 0.01" NA
Dec 13 12° 31° -19° (1985) 54° (1999) 0.01" NA
Dec 14 12° 31° -17° (1989) 66° (1998) 0.01" NA
Dec 15 11° 30° -23° (1951) 57° (1962) 0.01" NA
Dec 16 11° 30° -18° (1989) 61° (1962) 0.01" NA
Dec 17 11° 30° -20° (1983) 58° (1962) 0.01" NA
Dec 18 11° 30° -24° (1983) 58° (1979) 0.01" NA
Dec 19 10° 30° -20° (1955) 55° (1979) 0.01" NA
Dec 20 10° 29° -15° (1996) 58° (1979) 0.01" NA
Dec 21 10° 29° -31° (1983) 60° (1957) 0.01" NA
Dec 22 29° -31° (1989) 63° (1972) 0.01" NA
Dec 23 29° -32° (1983) 57° (1950) 0.01" NA
Dec 24 28° -24° (1983) 51° (1955) 0.01" NA
Dec 25 28° -18° (1983) 55° (1999) 0.01" NA
Dec 26 28° -19° (1996) 52° (1956) 0.01" NA
Dec 27 28° -12° (1977) 53° (1958) 0.01" NA
Dec 28 28° -7° (1988) 60° (1999) 0.01" NA
Dec 29 28° -20° (1990) 59° (1999) 0.01" NA
Dec 30 27° -27° (1990) 52° (1956) 0.01" NA
Dec 31 27° -22° (1967) 56° (1999) 0.01" NA
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