Westport, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° -46° (1912) 60° (1981) 0.47" 6.4"
February 28° -46° (1895) 70° (1958) 0.58" 6.8"
March 20° 40° -32° (1995) 86° (1946) 1.16" 7.3"
April 32° 57° -2° (1975) 98° (1992) 1.85" 3.1"
May 44° 69° 13° (2005) 110° (1934) 3.11" 0"
June 54° 77° 28° (1901) 112° (1931) 3.7" 0"
July 59° 84° 35° (1915) 115° (1936) 3.02" 0"
August 56° 82° 30° (1893) 112° (1965) 2.43" 0"
September 46° 72° 11° (1939) 107° (1931) 2.19" 0"
October 33° 58° -6° (1919) 96° (1963) 1.99" 0.7"
November 19° 40° -27° (1964) 79° (1904) 0.73" 7"
December 26° -39° (1967) 69° (1939) 0.52" 7.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 13° 33° -29° (1962) 73° (1992) 0.03" 0.3"
Mar 2 14° 33° -21° (1913) 72° (1905) 0.03" 0.2"
Mar 3 14° 34° -15° (1916) 73° (1905) 0.03" 0.3"
Mar 4 15° 34° -23° (1917) 64° (2000) 0.02" 0.3"
Mar 5 15° 35° -22° (1919) 74° (2000) 0.03" 0.2"
Mar 6 16° 35° -16° (1899) 69° (2000) 0.03" 0.3"
Mar 7 16° 35° -24° (1995) 69° (1987) 0.03" 0.3"
Mar 8 17° 36° -32° (1995) 62° (1911) 0.03" 0.2"
Mar 9 17° 36° -20° (1951) 65° (1913) 0.04" 0.3"
Mar 10 18° 37° -24° (1948) 68° (1911) 0.03" 0.2"
Mar 11 18° 37° -27° (1948) 64° (1934) 0.03" 0.3"
Mar 12 18° 38° -20° (1897) 72° (1934) 0.03" 0.2"
Mar 13 19° 38° -28° (1896) 70° (1914) 0.04" 0.3"
Mar 14 19° 39° -31° (1897) 71° (1981) 0.04" 0.3"
Mar 15 20° 39° -29° (1897) 67° (1910) 0.03" 0.2"
Mar 16 20° 40° -17° (1906) 75° (1901) 0.04" 0.3"
Mar 17 20° 40° -10° (1906) 74° (1968) 0.04" 0.2"
Mar 18 21° 41° -15° (1923) 84° (1921) 0.04" 0.2"
Mar 19 21° 41° -11° (1965) 75° (1910) 0.04" 0.3"
Mar 20 22° 42° -6° (1965) 76° (1910) 0.04" 0.2"
Mar 21 22° 42° -12° (1965) 79° (1907) 0.04" 0.2"
Mar 22 22° 43° -16° (1899) 78° (1945) 0.04" 0.2"
Mar 23 23° 44° -21° (1899) 81° (1963) 0.04" 0.2"
Mar 24 23° 44° -10° (1893) 80° (1939) 0.05" 0.2"
Mar 25 24° 45° -10° (1894) 81° (1925) 0.04" 0.2"
Mar 26 24° 45° -13° (1964) 76° (1905) 0.04" 0.2"
Mar 27 24° 46° -12° (1913) 83° (1946) 0.05" 0.2"
Mar 28 25° 46° -10° (1913) 82° (1946) 0.04" 0.2"
Mar 29 25° 47° -9° (1969) 78° (1986) 0.05" 0.2"
Mar 30 25° 48° -14° (1969) 81° (1943) 0.05" 0.2"
Mar 31 26° 48° 0° (1899) 86° (1946) 0.05" 0.2"
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