100 DEGREES OR HIGHER IN SIOUX FALLS
     COMPILED BY THE NATIONAL WEATHER SERVICE IN SIOUX FALLS


WEATHER RECORDS FOR SIOUX FALLS SOUTH DAKOTA COMMENCED IN 1893
AND CONTINUE TO THE PRESENT DAY.

THE MAXIMUM TEMPERATURE HAS REACHED 100 DEGREES OR HIGHER DURING
THE MONTHS OF MAY THROUGH SEPTEMBER ON 211 OCCASIONS.  THIS EVENT
OCCURRED IN 58 OF THE 103 YEARS FOR SLIGHTLY MORE THAN HALF /56%/
OF THE YEARS ON RECORD.

...MONTHLY DATA...

100 DEGREES OR HIGHER OCCURS MOST OFTEN IN JULY.  THE BREAKDOWN
BY MONTH...
               MAY           3 TIMES
               JUNE         28 TIMES
               JULY        128 TIMES
               AUGUST       41 TIMES
               SEPTEMBER    11 TIMES

...YEARLY DATA...

100 DEGREES OR HIGHER OCCURRED MOST OFTEN IN 1936.  THE TOP
12 YEARS WERE...
                 1936      21 TIMES
                 1988      14 TIMES
                 1894      12 TIMES
                 1934      10 TIMES
                 1974       8 TIMES
                 1947       7 TIMES
                 1941       7 TIMES
                 1931       7 TIMES
                 1930       7 TIMES
                 1975       6 TIMES
                 1911       6 TIMES
                 1901       6 TIMES

...DECADE DATA...

100 DEGREES OR HIGHER OCCURRED MOST OFTEN DURING THE DECADE OF
1930-1939. THE BREAKDOWN BY DECADES...

               1893 - 1899    19 TIMES  (PARTIAL DECADE)
               1900 - 1909     9 TIMES
               1910 - 1919    12 TIMES
               1920 - 1929     8 TIMES
               1930 - 1939    58 TIMES
               1940 - 1949    22 TIMES
               1950 - 1959    13 TIMES
               1960 - 1969    10 TIMES
               1970 - 1979    31 TIMES
               1980 - 1989    23 TIMES
               1990 - 1995     6 TIMES  (PARTIAL DECADE)

...RECORD DATA...

THE HIGHEST TEMPERATURE EVER RECORDED IN SIOUX FALLS WAS 110 DEGREES
ON JULY 17 1936 AND JUNE 21 1988.

THE HIGHEST TEMPERATURE EVER RECORDED IN EACH OF THE MONTHS OF MAY
THROUGH SEPTEMBER...

          MAY         104 ON MAY 30 1934
          JUNE        110 ON JUNE 21 1988
          JULY        110 ON JULY 17 1936
          AUGUST      109 ON AUGUST 24 1936
          SEPTEMBER   104 ON SEPTEMBER 4 1913
                             SEPTEMBER 5 1913
                             SEPTEMBER 6 1913
                             SEPTEMBER 6 1922
                             SEPTEMBER 6 1976

THE EARLIEST OCCURRENCE OF 100 DEGREES OR HIGHER WAS ON MAY 25 1967
WHEN 100 DEGREES WAS REPORTED.

THE LATEST OCCURRENCE OF 100 DEGREES OR HIGHER WAS ON SEPTEMBER 19 1895
WHEN 100 DEGREES OR HIGHER WAS REPORTED.


THE RECORDS FOR CONSECUTIVE DAYS OF 100 DEGREES OR HIGHER...

                 9 DAYS    JULY  9 THROUGH JULY 17 1936

                 6 DAYS    JULY 19 THROUGH JULY 24 1934 

                 5 DAYS    JULY 16 THROUGH JULY 20 1926

                 4 DAYS    JUNE 18 THROUGH JUNE 21 1988
                           JULY 22 THROUGH JULY 25 1941
                           JULY 26 THROUGH JULY 29 1935

                 3 DAYS    AUGUST 26 THROUGH AUGUST 28 1973
                           JULY  9 THROUGH JULY 11 1930
                           JULY 22 THROUGH JULY 24 1901
                           JULY 21 THROUGH JULY 23 1894


RSR 4/13/00 

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