NATIONAL WEATHER SERVICE - DENVER, COLORADO
MONTHLY TEMPERATURE, RAINFALL, AND SNOWFALL EXTREMES
FOR SEPTEMBER
10 WARMEST SEPS 10 WETTEST SEPS 10 SNOWIEST SEPS
(1873-2009) (1872-2009) (1882-2009)
68.3 1948 4.67 1961 17.2 1971
68.2 1931, 1981 3.78 1909 16.5 1936
68.0 1998 (cor) 3.70 1902 12.9 1959
67.7 1933 3.42 1938 11.4 1895
67.6 1947 2.89 1875, 1918, 1936 8.7 1985
67.2 1994, 2005 2.85 1971, 1973 7.4 1995
67.0 1939 2.72 1906, 1955 6.5 1908
66.9 1990 2.64 1913 5.8 1961
66.8 2001 2.58 1965 5.5 1965
66.6 1977 2.47 1940, 1970 5.4 1993
10 COLDEST SEPS 10 DRIEST SEPS LEAST SNOWIEST SEPS
(1873-2009) (1872-2009) (1882-2009)
54.8 1912 T 1892, 1944 Numerous years with
55.7 1965 0.01 1956, 1992 no snowfall (81).
56.3 1961 0.02 1879, 1921
57.5 1971 0.05 1893
58.1 1918 0.06 1882, 1920
58.8 1929, 1985 0.07 1928, 1978, 2005
58.9 2006 0.08 1949
59.2 1913, 1999 0.10 1977
59.3 2003 0.11 1888, 1932
59.4 1974 0.13 1884, 1983
- Temperatures in degrees Fahrenheit.
- Precipitation and Snowfall amounts in inches.
- Average September Temperature is 62.4 degrees (from 1971-2000 DIA data).
- Average September Precipitation is 1.14 inches (from 1971-2000 DIA data).
- Average September Snowfall is 2.1 inches (from 1971-2000 DEN data).
- Data collected at the Downtown City Office from 1872-December 1949, then
at the Stapleton Airport Office from January 1950-February 1995, then at
Denver International Airport from March 1995-Present.
UPDATED: 10/9/2009 - FMC |
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