NRCC Northeast Regional Climate Center  

September State Temperature Averages

State September 2004 Coolest Warmest
Temperature Departure Rank Average Year Average Year
Connecticut 63.6 1.9 87 57.9 1917 67.7 1961
Delaware 69.4 1.3 86 62.8 1917 73.1 1930
Maine 56.0 0.9 55 51.7 1978 62.7 1961
Maryland 68.5 1.5 84 61.9 1917 72.3 1930
Massachusetts 62.0 1.5 76 57.2 1963 66.8 1961
New Hampshire 58.9 1.9 86 53.2 1918 64.5 1961
New Jersey 67.8 2.3 101 59.2 1917 71.4 1961
New York 62.1 3.2 95 55.0 1918 66.5 1961
Pennsylvania 63.9 2.3 81 57.5 1918 67.8 1931
Rhode Island 64.3 1.5 91 58.2 1917 67.5 1961
Vermont 58.5 1.9 82 51.0 1913 65.1 1961
West Virginia 65.4 1.5 69 59.3 1918 69.9 1900
Northeast 62.3 2.1 85 56.6 1918 66.8 1961

Rankings are for 110 years between 1895 and 2004. 1=coolest; 110=warmest.

September State Precipitation Averages

State September 2004 Driest Wettest
Precipitation Departure Pct Normal Rank Amount Year Amount Year
Connecticut 8.68 4.32 198% 106 0.35 1914 13.89 1938
Delaware 4.21 0.02 100% 74 0.15 1941 11.59 1935
Maine 2.71 -0.97 73% 30 1.26 1948 9.10 1999
Maryland 5.39 1.35 133% 93 0.58 1941 10.45 1999
Massachusetts 7.55 3.61 191% 104 0.58 1914 9.66 1933
New Hampshire 4.31 0.65 117% 76 0.77 1914 9.81 1938
New Jersey 5.80 1.66 140% 96 0.27 1941 9.78 1938
New York 5.33 1.19 128% 100 1.18 1964 7.87 1977
Pennsylvania 8.88 4.80 217% 110 0.79 1943 8.88 2004
Rhode Island 6.81 3.01 179% 102 0.50 1959+ 9.39 1961
Vermont 3.23 -0.74 81% 45 0.96 1908 8.61 1999
West Virginia 7.45 3.94 211% 110 0.69 1985 7.45 2004
Northeast 6.02 2.08 152% 106 1.28 1914 7.44 1999

Rankings are for 110 years between 1895 and 2004. 1=driest; 110=wettest.

+ indicates extreme also occurred in one or more previous years.
Departures are calculated using the 1971-2000 normals.