DES MOINES, n

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(292453)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199406
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
1916 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 80.00 z ----- z ----- z 77.00 ----- z 80.00
1917 ----- z 53.00 z ----- z 48.00 z 48.00 z ----- z ----- z ----- z ----- z 92.00 41.00 z ----- z 92.00
1918 ----- z ----- z 68.00 z 54.00 z ----- z ----- z ----- z 93.00 ----- z ----- z ----- z 42.00 z 93.00
1919 ----- z ----- z 70.00 63.00 z ----- z ----- z 72.00 z ----- z 61.00 z 80.00 69.00 66.00 80.00
1920 ----- z 63.00 68.00 h 68.00 84.00 91.00 99.00 93.00 ----- z 55.00 z ----- z ----- z 99.00
1921 67.00 ----- z 75.00 50.00 z ----- z ----- z 88.00 ----- z ----- z ----- z 75.00 ----- z 88.00
1922 ----- z ----- z 70.00 ----- z ----- z ----- z 98.00 ----- z ----- z 84.00 ----- z 61.00 d 98.00
1923 58.00 l 60.00 60.00 ----- z 82.00 87.00 94.00 86.00 82.00 a 66.00 70.00 59.00 94.00
1924 56.00 60.00 ----- z ----- z 78.00 ----- z 89.00 98.00 d ----- z 87.00 79.00 54.00 n 98.00
1925 59.00 69.00 75.00 87.00 89.00 ----- z 95.00 85.00 85.00 ----- z 75.00 y 78.00 c 95.00
1926 68.00 75.00 a 75.00 e 64.00 72.00 f 93.00 f 89.00 c 90.00 c 90.00 h 80.00 q ----- z ----- z 93.00
1927 72.00 b 67.00 b 71.00 b 76.00 e 92.00 c 93.00 93.00 a 86.00 a 86.00 78.00 d ----- z ----- z 93.00
1928 70.00 68.00 80.00 80.00 ----- z 94.00 c 88.00 84.00 84.00 80.00 55.00 55.00 94.00
1929 70.00 58.00 69.00 72.00 78.00 90.00 89.00 84.00 81.00 77.00 60.00 65.00 90.00
1930 57.00 66.00 66.00 77.00 78.00 90.00 88.00 90.00 ----- z 77.00 d 59.00 z 56.00 90.00
1931 59.00 59.00 60.00 72.00 80.00 90.00 91.00 89.00 86.00 74.00 69.00 61.00 91.00
1932 52.00 68.00 66.00 74.00 75.00 a 85.00 93.00 91.00 86.00 79.00 71.00 70.00 93.00
1933 61.00 66.00 74.00 74.00 85.00 94.00 95.00 90.00 90.00 80.00 70.00 67.00 95.00
1934 63.00 70.00 74.00 79.00 87.00 94.00 97.00 95.00 86.00 85.00 73.00 67.00 97.00
1935 66.00 70.00 74.00 78.00 78.00 93.00 96.00 97.00 90.00 76.00 75.00 65.00 97.00
1936 58.00 61.00 70.00 78.00 83.00 c 97.00 94.00 94.00 87.00 77.00 71.00 63.00 97.00
1937 56.00 64.00 63.00 80.00 85.00 93.00 93.00 94.00 88.00 79.00 68.00 67.00 94.00
1938 63.00 66.00 71.00 79.00 85.00 87.00 93.00 94.00 83.00 79.00 64.00 63.00 94.00
1939 55.00 54.00 68.00 78.00 86.00 97.00 93.00 89.00 92.00 77.00 70.00 72.00 97.00
1940 56.00 68.00 75.00 77.00 85.00 g 92.00 96.00 90.00 86.00 79.00 71.00 53.00 96.00
1941 55.00 56.00 67.00 69.00 86.00 88.00 86.00 84.00 86.00 77.00 75.00 70.00 88.00
1942 62.00 59.00 66.00 74.00 88.00 g 90.00 90.00 88.00 83.00 76.00 71.00 68.00 90.00
1943 60.00 61.00 76.00 d ----- z 82.00 i 91.00 96.00 95.00 84.00 79.00 70.00 55.00 g 96.00
1944 56.00 57.00 67.00 68.00 80.00 91.00 89.00 94.00 89.00 80.00 68.00 53.00 94.00
1945 64.00 65.00 70.00 76.00 82.00 90.00 90.00 93.00 90.00 88.00 72.00 63.00 93.00
1946 60.00 66.00 77.00 79.00 77.00 95.00 94.00 90.00 87.00 79.00 68.00 h 70.00 e 95.00
1947 62.00 d 70.00 70.00 77.00 86.00 h 90.00 91.00 ----- z ----- z 83.00 ----- z 58.00 c 91.00
1948 62.00 a 55.00 c 68.00 f 80.00 89.00 i 89.00 92.00 88.00 91.00 h ----- z ----- z 64.00 a 92.00
1949 58.00 b 60.00 i 70.00 ----- z 83.00 e 86.00 e 89.00 90.00 84.00 i 80.00 72.00 i 61.00 90.00
1950 69.00 65.00 i 71.00 80.00 85.00 e 94.00 87.00 j 88.00 83.00 c 83.00 80.00 c 68.00 i 94.00
1951 68.00 a 74.00 68.00 76.00 a 89.00 d 92.00 94.00 92.00 85.00 j 79.00 68.00 e 65.00 94.00
1952 60.00 62.00 61.00 c 77.00 83.00 c 94.00 a 93.00 b 93.00 85.00 78.00 70.00 63.00 94.00
1953 66.00 61.00 b 75.00 80.00 91.00 96.00 95.00 91.00 89.00 a 80.00 70.00 58.00 96.00
1954 62.00 68.00 a 71.00 82.00 85.00 90.00 94.00 90.00 92.00 89.00 72.00 64.00 94.00
1955 60.00 63.00 72.00 79.00 81.00 a 90.00 92.00 90.00 90.00 82.00 75.00 75.00 92.00
1956 68.00 66.00 76.00 81.00 88.00 94.00 94.00 94.00 93.00 84.00 74.00 69.00 94.00
1957 63.00 70.00 69.00 75.00 82.00 96.00 99.00 90.00 86.00 81.00 66.00 63.00 99.00
1958 60.00 69.00 70.00 76.00 86.00 94.00 94.00 93.00 92.00 82.00 72.00 67.00 94.00
1959 59.00 64.00 69.00 81.00 83.00 91.00 90.00 94.00 91.00 85.00 69.00 66.00 94.00
1960 58.00 55.00 74.00 82.00 85.00 96.00 96.00 95.00 91.00 81.00 73.00 70.00 96.00
1961 61.00 60.00 67.00 80.00 86.00 90.00 90.00 90.00 85.00 77.00 69.00 62.00 90.00
1962 62.00 72.00 74.00 82.00 89.00 88.00 92.00 95.00 87.00 86.00 71.00 67.00 95.00
1963 66.00 73.00 76.00 80.00 88.00 93.00 96.00 91.00 86.00 80.00 72.00 66.00 96.00
1964 61.00 59.00 73.00 77.00 87.00 90.00 96.00 91.00 89.00 80.00 71.00 67.00 96.00
1965 62.00 65.00 71.00 85.00 81.00 88.00 89.00 87.00 81.00 80.00 68.00 72.00 89.00
1966 59.00 55.00 79.00 79.00 86.00 88.00 96.00 88.00 84.00 77.00 75.00 62.00 96.00
1967 63.00 64.00 76.00 80.00 89.00 86.00 87.00 86.00 81.00 82.00 71.00 55.00 89.00
1968 65.00 65.00 73.00 74.00 87.00 95.00 91.00 86.00 82.00 81.00 67.00 63.00 95.00
1969 64.00 60.00 70.00 76.00 82.00 88.00 90.00 89.00 83.00 77.00 68.00 65.00 90.00
1970 68.00 70.00 67.00 74.00 85.00 90.00 90.00 88.00 86.00 75.00 67.00 67.00 90.00
1971 69.00 65.00 81.00 79.00 79.00 93.00 97.00 87.00 89.00 78.00 74.00 63.00 97.00
1972 66.00 72.00 74.00 81.00 81.00 87.00 92.00 88.00 82.00 82.00 60.00 60.00 92.00
1973 60.00 61.00 64.00 72.00 79.00 89.00 94.00 89.00 84.00 77.00 76.00 66.00 94.00
1974 64.00 62.00 74.00 79.00 88.00 90.00 90.00 87.00 87.00 76.00 70.00 60.00 90.00
1975 66.00 62.00 68.00 73.00 81.00 86.00 87.00 90.00 88.00 79.00 72.00 64.00 90.00
1976 60.00 66.00 72.00 72.00 78.00 92.00 88.00 89.00 87.00 77.00 68.00 61.00 92.00
1977 58.00 64.00 66.00 77.00 77.00 91.00 90.00 87.00 87.00 78.00 73.00 66.00 91.00
1978 58.00 58.00 74.00 76.00 83.00 97.00 92.00 90.00 86.00 82.00 h 76.00 57.00 97.00
1979 60.00 68.00 68.00 77.00 78.00 90.00 92.00 91.00 85.00 84.00 63.00 68.00 92.00
1980 62.00 67.00 67.00 78.00 78.00 94.00 94.00 92.00 84.00 79.00 78.00 74.00 94.00
1981 64.00 71.00 67.00 81.00 84.00 95.00 97.00 91.00 82.00 75.00 71.00 65.00 97.00
1982 67.00 72.00 66.00 77.00 78.00 89.00 92.00 87.00 88.00 79.00 66.00 65.00 92.00
1983 63.00 61.00 70.00 71.00 78.00 90.00 89.00 89.00 90.00 78.00 75.00 68.00 90.00
1984 62.00 64.00 65.00 72.00 86.00 88.00 89.00 87.00 86.00 73.00 69.00 66.00 89.00
1985 56.00 64.00 72.00 73.00 80.00 89.00 92.00 90.00 87.00 77.00 67.00 62.00 92.00
1986 69.00 70.00 75.00 80.00 81.00 85.00 91.00 91.00 88.00 75.00 69.00 56.00 91.00
1987 69.00 61.00 68.00 79.00 79.00 86.00 94.00 89.00 80.00 80.00 68.00 71.00 94.00
1988 63.00 64.00 75.00 77.00 82.00 88.00 90.00 89.00 86.00 77.00 73.00 69.00 90.00
1989 69.00 70.00 79.00 84.00 87.00 89.00 91.00 90.00 85.00 80.00 74.00 62.00 91.00
1990 66.00 66.00 70.00 75.00 83.00 98.00 91.00 90.00 87.00 80.00 75.00 66.00 98.00
1991 57.00 62.00 68.00 77.00 81.00 89.00 88.00 86.00 82.00 83.00 69.00 63.00 89.00
1992 60.00 63.00 66.00 80.00 84.00 85.00 95.00 89.00 84.00 80.00 66.00 55.00 95.00
1993 59.00 59.00 70.00 76.00 79.00 89.00 95.00 88.00 80.00 80.00 67.00 65.00 95.00
1994 61.00 63.00 74.00 79.00 82.00 98.00 ----- z ----- z ----- z ----- z ----- z ----- z 98.00
Period of Record Statistics
MEAN 62.21 64.38 70.74 77.06 82.98 90.96 92.27 90.01 86.11 79.63 70.45 64.31 93.21
S.D. 4.41 4.97 4.50 4.08 3.91 3.37 3.09 3.08 3.18 3.90 4.42 5.15 2.82
SKEW 0.15 -0.03 -0.11 -0.58 0.14 0.25 0.15 0.26 0.10 0.25 -0.68 -0.08 0.02
MAX 72.00 75.00 81.00 87.00 92.00 98.00 99.00 98.00 93.00 92.00 80.00 78.00 99.00
MIN 52.00 54.00 60.00 64.00 75.00 85.00 86.00 84.00 80.00 66.00 55.00 53.00 88.00
NO YRS 72 71 73 69 66 70 73 72 64 70 66 68 53