West Yellowstone, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -17° -4° -51.1° (1963) 8.3° (1986) 1.96" 29.6"
February -16° -1° -54.4° (1933) 13.3° (1958) 1.77" 28.6"
March -11° -41.7° (1955) 16.1° (1966) 1.82" 22.9"
April -6° -32.2° (1936) 24.4° (1939) 1.51" 12.6"
May -2° 14° -17.8° (1954) 31.1° (1936) 2.19" 3.1"
June 21° -7.8° (1924) 33.9° (1936) 2.21" 0.2"
July 26° -6.7° (1948) 36.1° (1936) 1.84" 0"
August 25° -9.4° (1928) 35.6° (1961) 1.36" 0"
September -1° 19° -22.8° (1926) 32.8° (1950) 1.47" 0.3"
October -6° 11° -28.9° (1971) 28.3° (1934) 1.3" 8.1"
November -12° -38.9° (1929) 17.8° (1962) 2.01" 28"
December -17° -4° -50.6° (1924) 12.2° (1946) 2.3" 36.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 -15° -3.3° -33° (1991) 6° (1995) 0.08" NA
Dec 2 -15.6° -3.3° -33° (1931) 7° (1926) 0.08" NA
Dec 3 -15.6° -3.3° -35° (1984) 12° (1946) 0.08" NA
Dec 4 -15.6° -3.9° -38° (1992) 6° (1975) 0.08" NA
Dec 5 -16.1° -3.9° -43° (1972) 10° (1939) 0.08" NA
Dec 6 -16.1° -3.9° -36° (1960) 8° (1939) 0.08" NA
Dec 7 -16.1° -3.9° -39° (1927) 8° (1939) 0.08" NA
Dec 8 -16.7° -3.9° -41° (1978) 7° (1939) 0.08" NA
Dec 9 -16.7° -4.4° -40° (1972) 6° (1939) 0.08" NA
Dec 10 -16.7° -4.4° -44° (1972) 10° (1939) 0.08" NA
Dec 11 -16.7° -4.4° -43° (1932) 6° (1939) 0.08" NA
Dec 12 -17.2° -4.4° -38° (1938) 4° (1937) 0.08" NA
Dec 13 -17.2° -4.4° -38° (1940) 4° (1933) 0.08" NA
Dec 14 -17.2° -4.4° -45° (1926) 6° (1929) 0.07" NA
Dec 15 -17.2° -5° -44° (1955) 6° (1962) 0.07" NA
Dec 16 -17.2° -5° -39° (1964) 6° (1939) 0.07" NA
Dec 17 -17.8° -5° -47° (1964) 5° (1936) 0.07" NA
Dec 18 -17.8° -5° -46° (1924) 7° (1939) 0.07" NA
Dec 19 -17.8° -5° -51° (1924) 6° (1941) 0.07" NA
Dec 20 -17.8° -5° -49° (1924) 8° (1941) 0.07" NA
Dec 21 -17.8° -5° -43° (1990) 4° (1943) 0.07" NA
Dec 22 -17.8° -5° -42° (1983) 4° (1933) 0.07" NA
Dec 23 -17.8° -5° -43° (1983) 5° (1955) 0.07" NA
Dec 24 -17.8° -5° -44° (1983) 4° (1959) 0.07" NA
Dec 25 -18.3° -5° -45° (1924) 3° (1959) 0.07" NA
Dec 26 -18.3° -5.6° -37° (1924) 9° (1925) 0.07" NA
Dec 27 -17.8° -5.6° -36° (1954) 7° (1980) 0.07" NA
Dec 28 -17.8° -5.6° -38° (1954) 4° (1980) 0.07" NA
Dec 29 -17.8° -5.6° -43° (1978) 4° (1933) 0.07" NA
Dec 30 -17.8° -5.6° -46° (1978) 4° (1980) 0.07" NA
Dec 31 -17.8° -5.6° -45° (1978) 4° (1980) 0.07" NA
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