ONTONAGON, MICHIGAN

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(206210)

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 197705
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1948 ----- z ----- z ----- z ----- z 24.00 31.00 43.00 b 40.00 29.00 27.00 17.00 -2.00 -2.00
1949 -3.00 -9.00 -5.00 18.00 24.00 32.00 45.00 39.00 28.00 26.00 12.00 -3.00 -9.00
1950 -20.00 -11.00 -20.00 9.00 24.00 34.00 40.00 34.00 30.00 25.00 -3.00 -2.00 -20.00
1951 -28.00 -25.00 -2.00 a 21.00 22.00 32.00 40.00 37.00 a 30.00 23.00 -4.00 -12.00 -28.00
1952 -12.00 0.00 b -8.00 11.00 29.00 33.00 41.00 38.00 30.00 24.00 10.00 9.00 -12.00
1953 -10.00 -6.00 -8.00 17.00 26.00 34.00 42.00 43.00 a 40.00 b 24.00 14.00 0.00 -10.00
1954 -20.00 a 1.00 6.00 2.00 a 23.00 33.00 41.00 39.00 32.00 26.00 21.00 a 3.00 -20.00
1955 -9.00 -9.00 -3.00 23.00 26.00 35.00 46.00 48.00 35.00 29.00 1.00 -3.00 -9.00
1956 -13.00 -6.00 a -4.00 20.00 20.00 36.00 39.00 45.00 27.00 28.00 9.00 -3.00 -13.00
1957 -11.00 -13.00 -9.00 12.00 23.00 35.00 a 37.00 40.00 28.00 27.00 13.00 0.00 -13.00
1958 -3.00 -19.00 4.00 17.00 a 20.00 a 30.00 42.00 40.00 a 30.00 29.00 -1.00 -7.00 -19.00
1959 -14.00 -24.00 -14.00 20.00 24.00 35.00 42.00 44.00 30.00 20.00 -5.00 3.00 -24.00
1960 -13.00 -7.00 -14.00 17.00 25.00 31.00 34.00 39.00 31.00 25.00 18.00 -10.00 -14.00
1961 -13.00 -20.00 4.00 17.00 28.00 a 33.00 39.00 40.00 30.00 27.00 17.00 -5.00 -20.00
1962 -19.00 -20.00 -30.00 15.00 23.00 30.00 39.00 34.00 27.00 24.00 14.00 -12.00 -30.00
1963 -36.00 -27.00 -10.00 17.00 20.00 33.00 40.00 37.00 25.00 30.00 13.00 -5.00 -36.00
1964 -3.00 -7.00 0.00 7.00 28.00 30.00 44.00 38.00 22.00 23.00 8.00 -8.00 -8.00
1965 -23.00 -19.00 -25.00 18.00 32.00 31.00 37.00 37.00 25.00 25.00 11.00 1.00 -25.00
1966 -18.00 -36.00 0.00 18.00 21.00 32.00 42.00 42.00 32.00 26.00 11.00 -4.00 -36.00
1967 -15.00 -33.00 -16.00 13.00 25.00 37.00 34.00 33.00 24.00 24.00 9.00 -20.00 -33.00
1968 -20.00 -13.00 -13.00 12.00 28.00 31.00 35.00 35.00 35.00 26.00 19.00 -13.00 -20.00
1969 -13.00 -12.00 -11.00 16.00 25.00 33.00 32.00 39.00 35.00 19.00 8.00 -4.00 -13.00
1970 -28.00 -28.00 -9.00 2.00 31.00 35.00 40.00 39.00 34.00 28.00 2.00 -6.00 -28.00
1971 -17.00 -24.00 b -11.00 6.00 25.00 31.00 40.00 36.00 a 31.00 30.00 12.00 -1.00 -24.00
1972 -25.00 -16.00 -22.00 -4.00 25.00 28.00 32.00 39.00 31.00 d 21.00 8.00 -15.00 -25.00
1973 -14.00 -21.00 13.00 c 21.00 27.00 40.00 43.00 42.00 32.00 28.00 17.00 -6.00 -21.00
1974 -18.00 -20.00 -10.00 3.00 20.00 37.00 44.00 a 43.00 27.00 23.00 9.00 0.00 -20.00
1975 -8.00 -12.00 -3.00 6.00 29.00 26.00 42.00 40.00 30.00 23.00 4.00 -2.00 -12.00
1976 -12.00 -3.00 -4.00 18.00 24.00 38.00 39.00 33.00 25.00 18.00 -4.00 -14.00 b -14.00
1977 ----- z -22.00 -9.00 13.00 24.00 c ----- z ----- z ----- z ----- z ----- z ----- z ----- z -22.00
Period of Record Statistics
MEAN -15.64 -15.90 -8.03 13.28 24.83 32.97 39.79 39.07 29.83 25.10 8.97 -4.86 -19.86
S.D. 7.79 9.52 9.42 6.82 3.17 3.03 3.68 3.58 3.86 3.11 7.43 6.27 8.22
SKEW -0.52 -0.14 -0.17 -0.81 0.33 0.12 -0.61 0.31 0.30 -0.46 -0.47 -0.35 -0.39
MAX -3.00 1.00 13.00 23.00 32.00 40.00 46.00 48.00 40.00 30.00 21.00 9.00 -8.00
MIN -36.00 -36.00 -30.00 -4.00 20.00 26.00 32.00 33.00 22.00 18.00 -5.00 -20.00 -36.00
NO YRS 28 29 29 29 30 29 29 29 29 29 29 29 28