DULUTH HARBOR STN, s

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(212246)

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 200409
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
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1935 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1936 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1937 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1938 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1939 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1940 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1942 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
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 50.00 62.00 79.00 83.00 89.00 87.00 87.00 77.00 51.00 48.00 89.00
1961 39.00 54.00 49.00 62.00 79.00 91.00 87.00 91.00 84.00 77.00 57.00 41.00 91.00
1962 36.00 39.00 42.00 68.00 83.00 83.00 81.00 84.00 80.00 73.00 52.00 57.00 84.00
1963 38.00 40.00 63.00 70.00 76.00 91.00 a 89.00 90.00 a 80.00 79.00 58.00 42.00 91.00
1964 45.00 42.00 48.00 63.00 89.00 88.00 96.00 87.00 80.00 74.00 62.00 34.00 96.00
1965 38.00 41.00 40.00 81.00 77.00 83.00 84.00 90.00 78.00 66.00 64.00 40.00 90.00
1966 31.00 43.00 50.00 61.00 83.00 87.00 93.00 84.00 80.00 76.00 50.00 39.00 93.00
1967 39.00 38.00 57.00 64.00 75.00 80.00 81.00 83.00 78.00 75.00 51.00 41.00 83.00
1968 47.00 38.00 61.00 74.00 72.00 78.00 84.00 84.00 80.00 72.00 55.00 38.00 84.00
1969 33.00 37.00 46.00 62.00 89.00 72.00 80.00 88.00 84.00 67.00 51.00 42.00 89.00
1970 38.00 43.00 49.00 61.00 83.00 86.00 87.00 87.00 83.00 70.00 54.00 43.00 87.00
1971 31.00 41.00 39.00 61.00 73.00 83.00 86.00 88.00 79.00 73.00 52.00 37.00 88.00
1972 38.00 35.00 48.00 57.00 72.00 90.00 85.00 89.00 75.00 68.00 50.00 31.00 90.00
1973 48.00 45.00 45.00 67.00 74.00 79.00 89.00 a 88.00 86.00 72.00 49.00 39.00 89.00
1974 38.00 40.00 49.00 63.00 68.00 84.00 91.00 84.00 73.00 72.00 53.00 40.00 91.00
1975 35.00 34.00 42.00 53.00 73.00 81.00 89.00 83.00 76.00 74.00 66.00 40.00 89.00
1976 39.00 50.00 46.00 68.00 76.00 88.00 86.00 93.00 92.00 76.00 a 52.00 42.00 93.00
1977 32.00 47.00 53.00 75.00 a 85.00 84.00 a 89.00 b 77.00 76.00 66.00 63.00 b 41.00 89.00
1978 31.00 c 32.00 58.00 64.00 a 85.00 85.00 86.00 83.00 88.00 70.00 67.00 38.00 88.00
1979 25.00 a 34.00 41.00 61.00 67.00 85.00 85.00 83.00 78.00 64.00 49.00 45.00 85.00
1980 40.00 38.00 42.00 77.00 89.00 ----- z 97.00 85.00 76.00 76.00 58.00 44.00 97.00
1981 47.00 53.00 52.00 67.00 80.00 79.00 89.00 84.00 83.00 63.00 61.00 37.00 89.00
1982 34.00 45.00 45.00 70.00 73.00 83.00 84.00 84.00 79.00 68.00 53.00 45.00 84.00
1983 38.00 42.00 41.00 68.00 70.00 85.00 92.00 93.00 88.00 67.00 54.00 33.00 93.00
1984 45.00 48.00 45.00 64.00 79.00 82.00 88.00 91.00 84.00 67.00 55.00 43.00 91.00
1985 37.00 50.00 49.00 72.00 79.00 82.00 85.00 85.00 84.00 66.00 50.00 37.00 85.00
1986 45.00 34.00 65.00 70.00 90.00 80.00 85.00 84.00 72.00 70.00 51.00 36.00 90.00
1987 45.00 51.00 67.00 78.00 81.00 88.00 88.00 91.00 79.00 70.00 56.00 38.00 91.00
1988 40.00 41.00 49.00 63.00 82.00 m ----- z ----- z 88.00 73.00 66.00 44.00 42.00 j 88.00
1989 39.00 36.00 40.00 59.00 77.00 79.00 88.00 86.00 80.00 76.00 48.00 40.00 88.00
1990 46.00 44.00 54.00 69.00 75.00 ----- z ----- z 84.00 81.00 67.00 66.00 53.00 84.00
1991 39.00 54.00 54.00 a 70.00 81.00 a 82.00 88.00 n 92.00 i 80.00 70.00 46.00 38.00 92.00
1992 40.00 44.00 55.00 67.00 82.00 87.00 79.00 82.00 73.00 85.00 45.00 37.00 87.00
1993 40.00 47.00 46.00 64.00 82.00 85.00 80.00 ----- z 73.00 ----- z 45.00 38.00 85.00
1994 29.00 48.00 54.00 77.00 ----- z 84.00 82.00 r 84.00 79.00 67.00 55.00 44.00 84.00
1995 39.00 41.00 52.00 55.00 79.00 a 90.00 91.00 84.00 ----- z 78.00 42.00 38.00 91.00
1996 38.00 45.00 48.00 56.00 77.00 a 85.00 82.00 a 85.00 80.00 70.00 51.00 35.00 85.00
1997 37.00 43.00 51.00 64.00 64.00 86.00 f 90.00 91.00 83.00 73.00 45.00 46.00 91.00
1998 40.00 ----- z 63.00 n 76.00 72.00 a 78.00 93.00 87.00 89.00 69.00 57.00 56.00 93.00
1999 42.00 49.00 61.00 72.00 88.00 89.00 a 96.00 90.00 83.00 65.00 67.00 48.00 96.00
2000 36.00 46.00 68.00 71.00 83.00 ----- z ----- z 90.00 83.00 73.00 60.00 35.00 90.00
2001 40.00 31.00 48.00 79.00 77.00 89.00 ----- z 97.00 82.00 74.00 67.00 44.00 97.00
2002 44.00 49.00 47.00 67.00 87.00 91.00 93.00 88.00 a 88.00 74.00 57.00 42.00 93.00
2003 51.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 53.00 40.00 53.00
2004 33.00 47.00 50.00 63.00 69.00 80.00 a 92.00 86.00 80.00 ----- z ----- z ----- z 92.00
Period of Record Statistics
MEAN 38.75 42.83 50.21 66.70 78.38 84.08 87.61 86.71 80.67 71.31 54.36 41.05 89.10
S.D. 5.43 6.01 7.37 6.67 6.50 4.32 4.59 3.73 4.74 4.70 6.70 5.48 3.50
SKEW -0.08 -0.04 0.71 0.20 -0.06 -0.33 0.08 0.30 0.18 0.46 0.37 1.06 0.06
MAX 51.00 54.00 68.00 81.00 90.00 91.00 97.00 97.00 92.00 85.00 67.00 57.00 96.00
MIN 25.00 31.00 39.00 53.00 64.00 72.00 79.00 77.00 72.00 63.00 42.00 31.00 83.00
NO YRS 44 42 43 44 42 39 38 42 43 42 44 43 30