Alta, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -31° (1924) 66° (1981) 0.55" 6.7"
February 14° 32° -34° (1905) 66° (1976) 0.68" 6.7"
March 24° 44° -24° (1962) 85° (1967) 2.01" 6.4"
April 37° 59° 2° (1975) 93° (1980) 3.99" 2.7"
May 49° 70° 20° (1967) 107° (1934) 4.57" 0.2"
June 59° 80° 34° (1945) 105° (1933) 5.56" 0"
July 63° 83° 42° (1971) 109° (1936) 4.4" 0"
August 61° 81° 36° (1964) 109° (1930) 4.45" 0"
September 52° 74° 22° (1899) 101° (1913) 3.24" 0"
October 39° 61° 2° (1925) 91° (1997) 2.37" 0.4"
November 26° 44° -11° (1937) 80° (2005) 1.83" 4.7"
December 13° 30° -29° (1917) 66° (1998) 1.06" 8.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 44° 66° 22° (1909) 91° (1992) 0.15" 0"
May 2 44° 66° 20° (1967) 90° (1992) 0.14" 0"
May 3 44° 66° 20° (1967) 90° (1949) 0.15" 0.1"
May 4 45° 67° 21° (1967) 90° (1918) 0.15" 0"
May 5 45° 67° 23° (1967) 89° (1909) 0.14" 0"
May 6 46° 67° 28° (1925) 99° (1934) 0.14" 0"
May 7 46° 68° 26° (1954) 89° (1934) 0.14" 0"
May 8 46° 68° 28° (1955) 94° (1934) 0.14" 0"
May 9 47° 68° 26° (1966) 89° (1934) 0.14" 0"
May 10 47° 68° 25° (1966) 87° (1911) 0.14" 0.1"
May 11 47° 69° 26° (1946) 89° (1987) 0.14" 0"
May 12 48° 69° 27° (1946) 88° (1915) 0.15" 0"
May 13 48° 69° 26° (1997) 90° (1932) 0.15" 0"
May 14 48° 70° 30° (1967) 90° (1932) 0.15" 0"
May 15 49° 70° 29° (1997) 93° (2001) 0.16" 0"
May 16 49° 70° 29° (1929) 90° (1936) 0.15" 0"
May 17 49° 71° 31° (1925) 91° (1934) 0.15" 0"
May 18 50° 71° 33° (1915) 96° (1934) 0.16" 0"
May 19 50° 71° 34° (1968) 95° (1934) 0.15" 0"
May 20 50° 71° 27° (1907) 93° (1925) 0.15" 0"
May 21 51° 72° 26° (1931) 90° (1975) 0.15" 0"
May 22 51° 72° 26° (1963) 93° (1925) 0.15" 0"
May 23 51° 72° 30° (1963) 90° (1939) 0.15" 0"
May 24 52° 73° 32° (1924) 95° (1939) 0.14" 0"
May 25 52° 73° 32° (1901) 93° (2010) 0.15" 0"
May 26 52° 73° 30° (1971) 97° (1967) 0.14" 0"
May 27 53° 74° 32° (1907) 89° (1956) 0.15" 0"
May 28 53° 74° 31° (1947) 92° (1934) 0.14" 0"
May 29 53° 74° 28° (1947) 104° (1934) 0.15" 0"
May 30 54° 75° 35° (1930) 107° (1934) 0.15" 0"
May 31 54° 75° 36° (1964) 100° (1934) 0.16" 0"
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