Mason, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 36° -29° (1915) 72° (1950) 2.89" 4.5"
February 23° 41° -19° (1982) 78° (1972) 2.81" 5.3"
March 32° 52° -11° (1978) 89° (1929) 3.27" 1.7"
April 42° 65° 21° (1983) 91° (1930) 4.01" 0.1"
May 53° 74° 28° (1944) 98° (1934) 5.27" 0"
June 62° 84° 35° (1917) 106° (1954) 4.46" 0"
July 66° 87° 45° (1947) 111° (1954) 4.43" 0"
August 64° 86° 39° (1915) 110° (1918) 2.75" 0"
September 55° 80° 24° (1928) 105° (1954) 2.99" 0"
October 44° 67° 15° (1952) 95° (1922) 3.59" 0"
November 34° 54° -6° (1950) 83° (1933) 4.13" 0.4"
December 23° 40° -17° (1924) 74° (1948) 3.22" 3.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 27° 46° 1° (1960) 72° (1976) 0.09" 0.1"
Mar 2 28° 47° -2° (1980) 74° (2006) 0.09" 0.1"
Mar 3 28° 47° -4° (1943) 76° (1955) 0.08" 0.1"
Mar 4 28° 47° -2° (1916) 76° (1992) 0.09" 0.1"
Mar 5 29° 48° -11° (1978) 77° (1983) 0.09" 0"
Mar 6 29° 48° -10° (1978) 73° (1956) 0.1" 0.1"
Mar 7 29° 49° -2° (1943) 80° (1974) 0.09" 0.1"
Mar 8 30° 49° -7° (1943) 80° (2000) 0.1" 0.1"
Mar 9 30° 49° 5° (1984) 80° (1925) 0.09" 0.1"
Mar 10 30° 50° 4° (1934) 77° (1925) 0.1" 0"
Mar 11 31° 50° 7° (1948) 80° (1972) 0.09" 0.1"
Mar 12 31° 51° -1° (1948) 79° (1990) 0.1" 0.1"
Mar 13 31° 51° 5° (1960) 81° (1933) 0.1" 0.1"
Mar 14 32° 51° 10° (1993) 81° (2007) 0.1" 0"
Mar 15 32° 52° 11° (1993) 79° (1921) 0.1" 0.1"
Mar 16 32° 52° 11° (1916) 80° (1945) 0.1" 0"
Mar 17 33° 53° 11° (1941) 76° (1995) 0.11" 0"
Mar 18 33° 53° 11° (1941) 77° (1903) 0.11" 0.1"
Mar 19 33° 54° 4° (1923) 80° (1921) 0.11" 0"
Mar 20 33° 54° 7° (1914) 79° (1921) 0.11" 0.1"
Mar 21 34° 54° 14° (1960) 79° (1966) 0.11" 0"
Mar 22 34° 55° 15° (2006) 78° (1938) 0.12" 0"
Mar 23 34° 55° 13° (1960) 84° (1928) 0.11" 0.1"
Mar 24 35° 56° 4° (1974) 89° (1929) 0.12" 0"
Mar 25 35° 56° 2° (1912) 83° (1929) 0.11" 0.1"
Mar 26 35° 56° 5° (1955) 82° (2007) 0.12" 0"
Mar 27 36° 57° 11° (1955) 80° (1991) 0.12" 0"
Mar 28 36° 57° 17° (1913) 81° (2007) 0.12" 0"
Mar 29 36° 58° 20° (1915) 83° (1963) 0.13" 0.1"
Mar 30 37° 58° 19° (1964) 83° (1986) 0.13" 0"
Mar 31 37° 59° 11° (1969) 84° (1986) 0.13" 0"
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