Mill Iron, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 30° -44° (1954) 65° (1992) 0.59" NA
February 14° 36° -43° (1936) 66° (1995) 0.51" NA
March 21° 45° -32° (1960) 83° (1910) 0.81" NA
April 31° 58° -11° (1899) 90° (1926) 1.85" NA
May 41° 68° 8° (1954) 98° (1919) 2.69" NA
June 50° 78° 27° (1919) 105° (1988) 3.16" NA
July 56° 86° 30° (1945) 108° (1936) 1.9" NA
August 55° 84° 26° (1974) 108° (1949) 1.27" NA
September 44° 73° 13° (1958) 103° (1978) 1.52" NA
October 34° 59° -15° (1991) 92° (1922) 1.59" NA
November 21° 42° -30° (1955) 78° (1909) 0.79" NA
December 11° 33° -43° (1989) 66° (1987) 0.57" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 36° 63° 12° (1909) 88° (1926) 0.07" NA
May 2 37° 64° 13° (1976) 84° (1947) 0.08" NA
May 3 37° 64° 8° (1954) 91° (1952) 0.08" NA
May 4 37° 64° 14° (1967) 88° (1918) 0.08" NA
May 5 38° 65° 16° (1931) 89° (1934) 0.08" NA
May 6 38° 65° 19° (1929) 87° (1916) 0.08" NA
May 7 38° 65° 19° (1938) 92° (1934) 0.08" NA
May 8 39° 66° 8° (1945) 92° (1934) 0.08" NA
May 9 39° 66° 21° (1909) 86° (1934) 0.08" NA
May 10 39° 66° 11° (1927) 93° (1900) 0.08" NA
May 11 39° 67° 19° (1968) 93° (1900) 0.08" NA
May 12 40° 67° 18° (1914) 92° (1900) 0.08" NA
May 13 40° 67° 19° (2004) 92° (2001) 0.08" NA
May 14 40° 68° 13° (1907) 91° (2001) 0.08" NA
May 15 41° 68° 18° (1905) 91° (1917) 0.08" NA
May 16 41° 68° 20° (1925) 91° (1934) 0.09" NA
May 17 41° 69° 27° (1916) 89° (1934) 0.09" NA
May 18 42° 69° 26° (1915) 96° (1948) 0.09" NA
May 19 42° 69° 24° (1931) 95° (1948) 0.09" NA
May 20 42° 70° 23° (1908) 93° (1964) 0.09" NA
May 21 43° 70° 18° (1963) 93° (1980) 0.09" NA
May 22 43° 70° 25° (1963) 97° (1980) 0.09" NA
May 23 43° 71° 28° (2002) 95° (1980) 0.09" NA
May 24 44° 71° 24° (2001) 91° (1929) 0.09" NA
May 25 44° 71° 29° (1943) 92° (1919) 0.09" NA
May 26 44° 72° 29° (1906) 94° (1934) 0.1" NA
May 27 45° 72° 26° (1924) 98° (1900) 0.1" NA
May 28 45° 72° 22° (1947) 98° (1919) 0.1" NA
May 29 45° 72° 22° (1947) 96° (1934) 0.1" NA
May 30 46° 73° 28° (1947) 92° (1925) 0.1" NA
May 31 46° 73° 30° (1917) 89° (1911) 0.1" NA
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