Letcher, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -45° (1912) 66° (1908) 0.5" 5.7"
February 12° 34° -46° (1899) 73° (2000) 0.78" 4.6"
March 23° 46° -23° (1897) 93° (1943) 1.39" 6.2"
April 35° 62° 0° (1924) 99° (1980) 2.89" 3.6"
May 46° 72° 16° (1967) 110° (1934) 3.4" 0.3"
June 56° 81° 27° (1946) 112° (1988) 3.61" 0"
July 61° 87° 37° (1917) 114° (1936) 2.8" 0"
August 59° 85° 33° (1923) 116° (1934) 2.52" 0"
September 49° 77° 16° (1926) 109° (1931) 2.28" 0"
October 37° 62° -13° (1925) 100° (1910) 1.89" 0.5"
November 23° 44° -22° (1959) 83° (1999) 1.14" 5.6"
December 10° 30° -39° (1917) 73° (1939) 0.47" 5.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 60° 86° 42° (1904) 107° (1911) 0.09" 0"
Jul 2 60° 86° 40° (1945) 102° (1936) 0.09" 0"
Jul 3 60° 86° 37° (1917) 106° (1929) 0.09" 0"
Jul 4 61° 86° 39° (1917) 114° (1936) 0.09" 0"
Jul 5 61° 87° 44° (1921) 113° (1936) 0.09" 0"
Jul 6 61° 87° 44° (1942) 109° (1936) 0.08" 0"
Jul 7 61° 87° 42° (1922) 107° (2007) 0.09" 0"
Jul 8 61° 87° 45° (1899) 105° (1911) 0.1" 0"
Jul 9 61° 87° 45° (1924) 111° (1936) 0.09" 0"
Jul 10 61° 87° 44° (1902) 111° (1936) 0.09" 0"
Jul 11 61° 87° 44° (1941) 110° (1930) 0.08" 0"
Jul 12 61° 87° 44° (1922) 108° (1936) 0.09" 0"
Jul 13 62° 87° 42° (1949) 109° (1936) 0.09" 0"
Jul 14 62° 87° 40° (1930) 109° (1936) 0.09" 0"
Jul 15 62° 88° 37° (1912) 108° (1931) 0.09" 0"
Jul 16 62° 88° 46° (1896) 113° (1936) 0.09" 0"
Jul 17 62° 88° 40° (1906) 113° (1936) 0.09" 0"
Jul 18 62° 88° 44° (1906) 109° (1936) 0.08" 0"
Jul 19 62° 88° 46° (1911) 109° (1934) 0.08" 0"
Jul 20 62° 88° 46° (1915) 114° (1934) 0.09" 0"
Jul 21 62° 88° 41° (1947) 114° (1934) 0.09" 0"
Jul 22 62° 88° 46° (1904) 114° (1936) 0.1" 0"
Jul 23 62° 88° 42° (1904) 110° (1940) 0.09" 0"
Jul 24 62° 88° 40° (1905) 111° (1940) 0.1" 0"
Jul 25 62° 87° 45° (1911) 109° (1931) 0.1" 0"
Jul 26 62° 87° 45° (1924) 111° (1930) 0.09" 0"
Jul 27 62° 87° 44° (1928) 111° (1935) 0.09" 0"
Jul 28 62° 87° 44° (1994) 109° (1917) 0.09" 0"
Jul 29 62° 87° 43° (1899) 110° (1935) 0.1" 0"
Jul 30 61° 87° 40° (1971) 107° (2006) 0.09" 0"
Jul 31 61° 87° 43° (1903) 107° (1988) 0.09" 0"
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