SIOUX FALLS FOSS FLD,

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(397667)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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 42.00 54.00 70.00 84.00 93.00 89.00 100.00 98.00 93.00 78.00 67.00 48.00 100.00
1949 44.00 45.00 56.00 89.00 92.00 96.00 99.00 96.00 86.00 82.00 74.00 52.00 99.00
1950 43.00 43.00 65.00 75.00 94.00 92.00 88.00 94.00 92.00 88.00 70.00 52.00 94.00
1951 52.00 55.00 50.00 80.00 a 82.00 86.00 95.00 94.00 83.00 a 88.00 60.00 55.00 95.00
1952 44.00 50.00 a 59.00 85.00 91.00 97.00 97.00 95.00 93.00 78.00 71.00 51.00 97.00
1953 44.00 46.00 65.00 82.00 92.00 101.00 a 95.00 93.00 95.00 92.00 75.00 46.00 101.00
1954 44.00 66.00 55.00 91.00 89.00 99.00 102.00 95.00 88.00 74.00 71.00 40.00 102.00
1955 48.00 42.00 67.00 82.00 90.00 92.00 102.00 103.00 99.00 85.00 68.00 45.00 103.00
1956 46.00 44.00 62.00 76.00 90.00 101.00 94.00 96.00 99.00 87.00 62.00 52.00 101.00
1957 39.00 54.00 66.00 79.00 86.00 92.00 100.00 100.00 84.00 78.00 54.00 61.00 100.00
1958 56.00 70.00 59.00 85.00 90.00 100.00 92.00 98.00 94.00 92.00 68.00 55.00 100.00
1959 49.00 39.00 67.00 85.00 94.00 99.00 99.00 98.00 95.00 74.00 57.00 52.00 99.00
1960 37.00 38.00 52.00 93.00 85.00 87.00 97.00 99.00 94.00 83.00 68.00 52.00 99.00
1961 45.00 51.00 67.00 81.00 86.00 98.00 95.00 98.00 92.00 84.00 62.00 56.00 98.00
1962 47.00 57.00 55.00 94.00 88.00 91.00 94.00 94.00 84.00 k 82.00 74.00 61.00 94.00
1963 54.00 59.00 80.00 86.00 89.00 99.00 98.00 94.00 92.00 94.00 65.00 59.00 99.00
1964 57.00 59.00 59.00 92.00 94.00 95.00 101.00 100.00 93.00 80.00 70.00 43.00 101.00
1965 43.00 51.00 60.00 87.00 84.00 85.00 97.00 101.00 82.00 77.00 72.00 53.00 101.00
1966 47.00 51.00 76.00 74.00 88.00 97.00 106.00 93.00 85.00 83.00 61.00 49.00 106.00
1967 45.00 54.00 83.00 84.00 100.00 91.00 104.00 95.00 92.00 88.00 68.00 51.00 104.00
1968 48.00 42.00 87.00 89.00 87.00 101.00 99.00 99.00 88.00 78.00 60.00 53.00 101.00
1969 39.00 37.00 46.00 77.00 92.00 93.00 98.00 99.00 87.00 81.00 68.00 56.00 99.00
1970 38.00 48.00 50.00 84.00 91.00 96.00 98.00 100.00 101.00 83.00 56.00 60.00 101.00
1971 40.00 53.00 73.00 82.00 84.00 99.00 94.00 103.00 100.00 79.00 68.00 38.00 103.00
1972 40.00 46.00 63.00 80.00 87.00 90.00 92.00 98.00 92.00 80.00 61.00 54.00 98.00
1973 45.00 47.00 67.00 76.00 89.00 95.00 99.00 108.00 90.00 80.00 65.00 53.00 108.00
1974 49.00 57.00 74.00 82.00 86.00 101.00 104.00 95.00 91.00 87.00 64.00 55.00 104.00
1975 41.00 38.00 68.00 78.00 93.00 92.00 103.00 94.00 92.00 86.00 76.00 44.00 103.00
1976 42.00 61.00 75.00 82.00 90.00 99.00 106.00 100.00 104.00 86.00 67.00 52.00 106.00
1977 37.00 64.00 70.00 88.00 88.00 96.00 101.00 92.00 87.00 74.00 61.00 47.00 101.00
1978 28.00 36.00 84.00 69.00 87.00 92.00 94.00 91.00 94.00 80.00 76.00 40.00 94.00
1979 24.00 35.00 50.00 80.00 89.00 97.00 94.00 94.00 87.00 75.00 64.00 50.00 97.00
1980 55.00 42.00 63.00 93.00 87.00 94.00 100.00 96.00 93.00 89.00 66.00 51.00 100.00
1981 66.00 70.00 70.00 91.00 88.00 96.00 100.00 94.00 95.00 75.00 69.00 42.00 100.00
1982 41.00 70.00 61.00 83.00 84.00 93.00 102.00 97.00 85.00 75.00 58.00 57.00 102.00
1983 42.00 52.00 69.00 74.00 89.00 90.00 99.00 101.00 97.00 85.00 63.00 27.00 101.00
1984 43.00 47.00 47.00 80.00 83.00 86.00 96.00 100.00 95.00 78.00 65.00 61.00 100.00
1985 49.00 59.00 73.00 92.00 91.00 97.00 99.00 89.00 88.00 74.00 64.00 37.00 99.00
1986 42.00 44.00 81.00 76.00 84.00 91.00 96.00 93.00 81.00 77.00 60.00 48.00 96.00
1987 60.00 65.00 78.00 89.00 93.00 98.00 101.00 96.00 90.00 88.00 64.00 48.00 101.00
1988 40.00 48.00 77.00 86.00 90.00 110.00 107.00 105.00 91.00 75.00 61.00 50.00 110.00
1989 58.00 42.00 79.00 83.00 90.00 97.00 108.00 95.00 85.00 85.00 65.00 50.00 108.00
1990 56.00 63.00 68.00 89.00 88.00 97.00 104.00 95.00 98.00 86.00 72.00 59.00 104.00
1991 42.00 58.00 77.00 88.00 89.00 95.00 101.00 100.00 94.00 84.00 59.00 47.00 101.00
1992 51.00 62.00 69.00 92.00 89.00 88.00 85.00 91.00 83.00 88.00 53.00 44.00 92.00
1993 39.00 44.00 62.00 71.00 81.00 88.00 90.00 92.00 93.00 87.00 58.00 47.00 93.00
1994 40.00 53.00 73.00 88.00 92.00 98.00 92.00 94.00 91.00 76.00 67.00 45.00 98.00
1995 40.00 58.00 73.00 65.00 81.00 98.00 107.00 100.00 86.00 85.00 54.00 53.00 107.00
1996 53.00 65.00 69.00 79.00 90.00 93.00 90.00 92.00 86.00 81.00 64.00 34.00 93.00
1997 43.00 41.00 74.00 75.00 85.00 96.00 93.00 90.00 88.00 89.00 56.00 52.00 96.00
1998 55.00 58.00 77.00 78.00 88.00 89.00 91.00 91.00 92.00 73.00 63.00 63.00 92.00
1999 41.00 57.00 73.00 72.00 83.00 90.00 95.00 95.00 89.00 81.00 73.00 b 56.00 95.00
2000 48.00 66.00 80.00 79.00 86.00 97.00 93.00 99.00 92.00 83.00 a 69.00 38.00 99.00
2001 42.00 a 39.00 55.00 87.00 93.00 97.00 94.00 94.00 88.00 90.00 75.00 50.00 97.00
2002 63.00 68.00 57.00 89.00 92.00 101.00 101.00 97.00 93.00 77.00 65.00 57.00 101.00
2003 57.00 52.00 78.00 85.00 81.00 91.00 93.00 97.00 93.00 85.00 64.00 48.00 97.00
2004 54.00 47.00 75.00 89.00 90.00 91.00 91.00 88.00 89.00 75.00 73.00 59.00 91.00
2005 53.00 61.00 74.00 81.00 81.00 93.00 99.00 91.00 93.00 86.00 77.00 45.00 99.00
2006 57.00 57.00 63.00 87.00 94.00 89.00 100.00 90.00 86.00 88.00 77.00 56.00 100.00
2007 45.00 46.00 75.00 92.00 88.00 93.00 98.00 92.00 90.00 88.00 65.00 38.00 98.00
2008 43.00 42.00 53.00 78.00 82.00 88.00 96.00 99.00 89.00 ----- z 76.00 49.00 99.00
2009 52.00 57.00 70.00 91.00 95.00 90.00 87.00 91.00 84.00 65.00 70.00 51.00 95.00
2010 38.00 35.00 80.00 79.00 91.00 89.00 94.00 92.00 87.00 84.00 71.00 48.00 94.00
2011 39.00 50.00 64.00 75.00 86.00 99.00 96.00 98.00 90.00 86.00 65.00 54.00 99.00
2012 62.00 50.00 85.00 89.00 91.00 96.00 104.00 104.00 96.00 80.00 70.00 61.00 104.00
2013 46.00 44.00 66.00 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 66.00
Period of Record Statistics
MEAN 46.24 51.58 67.70 83.02 88.54 94.40 97.52 96.08 90.84 82.09 66.06 50.15 99.62
S.D. 7.92 9.53 9.96 6.57 3.96 4.74 5.05 4.11 4.82 5.73 6.11 7.21 4.08
SKEW 0.19 0.16 -0.28 -0.38 -0.02 0.28 -0.08 0.43 0.25 -0.31 -0.11 -0.68 0.14
MAX 66.00 70.00 87.00 94.00 100.00 110.00 108.00 108.00 104.00 94.00 77.00 63.00 110.00
MIN 24.00 35.00 46.00 65.00 81.00 85.00 85.00 88.00 81.00 65.00 53.00 27.00 91.00
NO YRS 66 66 66 65 65 65 65 65 64 64 65 65 63