Vienna, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° -42° (1912) 66° (1981) 0.53" 6.7"
February 27° -40° (1905) 67° (1958) 0.6" 5.7"
March 19° 39° -27° (1913) 85° (1943) 1.24" 6.4"
April 32° 55° -8° (1975) 95° (1980) 1.97" 1.6"
May 45° 67° 16° (2005) 107° (1934) 2.94" 0"
June 55° 76° 28° (1951) 108° (1933) 3.92" 0"
July 61° 83° 38° (1930) 110° (1940) 3.5" 0"
August 58° 81° 32° (1935) 108° (1937) 2.82" 0"
September 48° 71° 15° (1926) 104° (1931) 2.78" 0.1"
October 35° 57° -8° (1925) 96° (1914) 2.06" 0.4"
November 21° 39° -22° (1964) 78° (1999) 0.92" 4"
December 25° -35° (1967) 63° (1941) 0.54" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 39° 63° 17° (1909) 98° (1959) 0.09" NA
May 2 40° 63° 19° (1907) 90° (1959) 0.1" NA
May 3 40° 64° 16° (1907) 88° (1952) 0.09" NA
May 4 40° 64° 16° (2005) 94° (1926) 0.09" NA
May 5 41° 64° 23° (1968) 93° (1939) 0.09" NA
May 6 41° 65° 21° (1931) 90° (1916) 0.09" NA
May 7 42° 65° 19° (1931) 93° (1916) 0.09" NA
May 8 42° 65° 20° (1931) 99° (1934) 0.09" NA
May 9 43° 66° 22° (1966) 93° (1911) 0.09" NA
May 10 43° 66° 22° (1907) 89° (1958) 0.1" NA
May 11 43° 66° 19° (1946) 92° (1906) 0.09" NA
May 12 44° 66° 16° (1946) 92° (1900) 0.09" NA
May 13 44° 67° 23° (1943) 89° (1932) 0.09" NA
May 14 45° 67° 24° (1921) 90° (1932) 0.09" NA
May 15 45° 67° 22° (1959) 93° (1931) 0.09" NA
May 16 45° 67° 24° (1929) 98° (1934) 0.1" NA
May 17 46° 68° 21° (1925) 100° (1934) 0.1" NA
May 18 46° 68° 25° (1915) 96° (1934) 0.1" NA
May 19 46° 68° 30° (1906) 94° (1925) 0.1" NA
May 20 47° 68° 28° (1931) 98° (1934) 0.09" NA
May 21 47° 69° 26° (1963) 91° (1925) 0.09" NA
May 22 47° 69° 20° (1931) 88° (1955) 0.09" NA
May 23 48° 69° 29° (1924) 92° (1950) 0.1" NA
May 24 48° 70° 26° (1924) 98° (1926) 0.09" NA
May 25 48° 70° 26° (1925) 96° (1926) 0.1" NA
May 26 49° 70° 32° (1947) 94° (1931) 0.09" NA
May 27 49° 70° 26° (1907) 92° (1934) 0.1" NA
May 28 49° 71° 28° (1965) 103° (1934) 0.1" NA
May 29 50° 71° 28° (1947) 98° (1934) 0.11" NA
May 30 50° 71° 33° (1930) 107° (1934) 0.1" NA
May 31 50° 71° 38° (1897) 102° (1934) 0.11" NA
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