Arthur, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° -32° (1970) 69° (2002) 0.78" 6.2"
February 13° 33° -30° (1958) 69° (2000) 0.67" 6.1"
March 24° 45° -24° (1960) 95° (1986) 2.04" 7.3"
April 35° 59° 3° (1975) 97° (1980) 3.07" 1"
May 48° 71° 19° (1961) 101° (1967) 3.88" 0"
June 59° 81° 34° (1969) 105° (1985) 4.67" 0"
July 63° 84° 42° (1972) 105° (1955) 3.79" 0"
August 61° 82° 36° (1986) 103° (1955) 3.81" 0"
September 51° 74° 22° (1984) 101° (2000) 2.86" 0"
October 39° 62° 10° (1976) 93° (1953) 2.14" 0.3"
November 25° 43° -13° (1959) 79° (1999) 1.42" 2.8"
December 12° 29° -28° (1989) 68° (1998) 0.81" 7.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 66° 24° (1966) 90° (1959) 0.11" NA
May 2 42° 66° 19° (1961) 91° (1949) 0.11" NA
May 3 43° 66° 26° (1976) 92° (1949) 0.11" NA
May 4 43° 67° 25° (2005) 92° (1952) 0.11" NA
May 5 44° 67° 26° (1968) 87° (1966) 0.11" NA
May 6 44° 67° 29° (1957) 89° (1955) 0.11" NA
May 7 45° 68° 26° (1976) 90° (1962) 0.12" NA
May 8 45° 68° 28° (1980) 89° (2000) 0.12" NA
May 9 45° 69° 25° (1966) 92° (1985) 0.12" NA
May 10 46° 69° 30° (1954) 86° (1985) 0.12" NA
May 11 46° 69° 29° (1981) 89° (1985) 0.12" NA
May 12 47° 70° 28° (1960) 86° (2000) 0.12" NA
May 13 47° 70° 27° (1997) 87° (1991) 0.12" NA
May 14 47° 70° 30° (1997) 88° (2007) 0.12" NA
May 15 48° 71° 28° (1959) 91° (2001) 0.12" NA
May 16 48° 71° 32° (1997) 86° (1954) 0.12" NA
May 17 49° 72° 33° (1973) 87° (1964) 0.12" NA
May 18 49° 72° 35° (1968) 92° (1967) 0.13" NA
May 19 50° 72° 28° (2002) 90° (1975) 0.13" NA
May 20 50° 73° 33° (1958) 90° (1970) 0.13" NA
May 21 50° 73° 33° (1963) 92° (1973) 0.13" NA
May 22 51° 73° 26° (1963) 91° (1975) 0.13" NA
May 23 51° 74° 26° (1963) 89° (1994) 0.13" NA
May 24 51° 74° 37° (1949) 94° (1967) 0.13" NA
May 25 52° 75° 39° (1958) 101° (1967) 0.14" NA
May 26 52° 75° 32° (1961) 94° (1967) 0.14" NA
May 27 53° 75° 35° (1971) 89° (1956) 0.14" NA
May 28 53° 76° 34° (1965) 90° (1969) 0.14" NA
May 29 53° 76° 36° (1952) 92° (1998) 0.14" NA
May 30 54° 76° 36° (1955) 93° (1989) 0.14" NA
May 31 54° 77° 37° (1964) 91° (1994) 0.15" NA
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