NRCC Northeast Regional Climate Center  

September State Temperature Averages

State September 1998 Coolest Warmest
Temperature Departure Rank Average Year Average Year
Connecticut 64.4 2.8 92 57.9 1917 67.7 1961
Delaware 71.3 3.5 96 62.8 1917 73.1 1930
Maine 56.6 1.5 62 51.7 1978 62.7 1961
Maryland 71.4 4.5 100 61.9 1917 72.3 1930
Massachusetts 63.0 2.5 90 57.2 1963 66.8 1961
New Hampshire 59.3 2.3 87 53.2 1918 64.5 1961
New Jersey 68.5 3.0 100 59.2 1917 71.4 1961
New York 61.5 2.5 87 55.0 1918 66.5 1961
Pennsylvania 64.8 3.1 86 57.5 1918 67.8 1931
Rhode Island 65.6 3.1 96 58.2 1917 67.5 1961
Vermont 58.0 1.0 69 51.0 1913 65.1 1961
West Virginia 67.4 3.4 90 59.3 1918 69.9 1900
Northeast 62.9 2.6 90 56.6 1918 66.8 1961

Rankings are for 104 years between 1895 and 1998. 1=coolest; 104=warmest.

September State Precipitation Averages

State September 1998 Driest Wettest
Precipitation Departure Pct Normal Rank Amount Year Amount Year
Connecticut 2.70 -1.19 69% 37 0.35 1914 13.89 1938
Delaware 2.34 -1.30 64% 26 0.15 1941 11.59 1935
Maine 2.80 -0.70 80% 30 1.26 1948 8.14 1909
Maryland 1.74 -1.81 48% 15 0.58 1941 9.18 1975
Massachusetts 2.27 -1.28 64% 32 0.58 1914 9.66 1933
New Hampshire 2.64 -0.65 80% 33 0.77 1914 9.81 1938
New Jersey 1.97 -1.79 52% 14 0.27 1941 9.78 1938
New York 2.70 -1.06 71% 29 1.18 1964 7.87 1977
Pennsylvania 2.14 -1.54 58% 22 0.79 1943 7.64 1975
Rhode Island 2.59 -1.04 71% 45 0.50 1959+ 9.39 1961
Vermont 4.27 0.82 123% 67 0.96 1908 8.11 1938
West Virginia 2.08 -1.35 60% 22 0.69 1985 6.73 1996
Northeast 2.49 -1.12 68% 21 1.28 1914 6.42 1975

Rankings are for 104 years between 1895 and 1998. 1=driest; 104=wettest.

+ indicates extreme also occurred in one or more previous years.
Departures are calculated using the 1961-1990 normals.