HIBBING PWR SUBSTN,

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(213727)

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 198109
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 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1950 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1951 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1952 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1953 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1954 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1955 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1956 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1957 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1958 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1959 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1960 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1961 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1962 ----- z ----- z ----- z ----- z ----- z 89.00 83.00 88.00 84.00 75.00 52.00 58.00 89.00
1963 38.00 41.00 71.00 75.00 84.00 90.00 88.00 87.00 80.00 88.00 59.00 41.00 90.00
1964 41.00 a 46.00 50.00 77.00 92.00 91.00 96.00 89.00 78.00 75.00 62.00 31.00 96.00
1965 33.00 36.00 41.00 81.00 78.00 83.00 89.00 89.00 77.00 68.00 65.00 37.00 89.00
1966 22.00 42.00 51.00 60.00 81.00 93.00 92.00 86.00 82.00 79.00 46.00 38.00 93.00
1967 34.00 35.00 66.00 64.00 77.00 83.00 90.00 88.00 82.00 76.00 48.00 38.00 90.00
1968 44.00 42.00 66.00 77.00 74.00 86.00 89.00 87.00 81.00 73.00 50.00 34.00 89.00
1969 29.00 40.00 50.00 70.00 90.00 82.00 91.00 88.00 83.00 75.00 62.00 40.00 91.00
1970 32.00 46.00 48.00 78.00 83.00 86.00 91.00 88.00 87.00 77.00 54.00 40.00 91.00
1971 27.00 44.00 48.00 69.00 79.00 86.00 82.00 88.00 89.00 67.00 52.00 33.00 89.00
1972 33.00 31.00 47.00 69.00 90.00 87.00 85.00 87.00 72.00 72.00 48.00 27.00 90.00
1973 51.00 43.00 58.00 70.00 a 79.00 85.00 91.00 90.00 81.00 77.00 49.00 33.00 91.00
1974 34.00 41.00 48.00 78.00 77.00 88.00 95.00 85.00 76.00 73.00 57.00 39.00 95.00
1975 33.00 43.00 48.00 61.00 84.00 86.00 92.00 f 87.00 j 75.00 i 80.00 i 71.00 k 34.00 l 92.00
1976 37.00 j 57.00 i 54.00 h 75.00 k 82.00 k 90.00 h 88.00 j 97.00 i 95.00 j 75.00 k 55.00 i 37.00 l 97.00
1977 25.00 m ----- z ----- z ----- z ----- z ----- z ----- z ----- z 74.00 n 68.00 j 57.00 j 36.00 p 74.00
1978 25.00 k 31.00 h 56.00 h 71.00 j 88.00 i 88.00 h 87.00 d 90.00 h 91.00 j 75.00 j 70.00 i 37.00 m 91.00
1979 26.00 j 39.00 h 46.00 i 63.00 i 85.00 i 85.00 i 89.00 j 83.00 h 87.00 k 70.00 i 51.00 i 43.00 n 89.00
1980 39.00 j ----- z ----- z 90.00 r 89.00 j 90.00 i 95.00 i 85.00 j 82.00 j 80.00 h 56.00 k 39.00 l 95.00
1981 45.00 j 52.00 h 63.00 i 67.00 h 80.00 k 80.00 h 92.00 i 83.00 j 83.00 i ----- z ----- z ----- z 92.00
Period of Record Statistics
MEAN 34.69 40.77 53.23 71.46 82.15 86.79 89.21 87.69 80.92 75.00 54.15 37.62 91.17
S.D. 7.49 4.38 9.08 6.85 5.67 3.17 4.04 1.32 4.54 5.20 6.24 7.38 2.33
SKEW 0.56 -0.92 0.83 -0.35 0.47 0.34 -0.19 -0.25 -0.11 0.85 0.41 1.47 1.06
MAX 51.00 46.00 71.00 81.00 92.00 93.00 96.00 90.00 89.00 88.00 65.00 58.00 96.00
MIN 22.00 31.00 41.00 60.00 74.00 82.00 82.00 85.00 72.00 67.00 46.00 27.00 89.00
NO YRS 13 13 13 13 13 14 14 13 13 13 13 13 12