NRCC Northeast Regional Climate Center  

May State Temperature Averages

State May 2003 Coolest Warmest
Temperature Departure Rank Average Year Average Year
Connecticut 55.5 -2.3 32 49.8 1917 63.1 1991
Delaware 58.5 -4.3 5 56.2 1917 68.8 1991
Maine 49.4 -1.9 28 44.3 1967 57.6 1911
Maryland 59.5 -2.9 14 56.5 1967+ 68.5 1991
Massachusetts 54.0 -2.2 19 48.8 1917 61.4 1944
New Hampshire 52.6 -1.5 42 45.0 1917 59.7 1911
New Jersey 56.5 -4.0 5 53.5 1917 66.1 1991
New York 54.1 -1.2 43 46.9 1917 61.6 1911
Pennsylvania 56.1 -1.6 31 51.0 1967 64.8 1944
Rhode Island 54.7 -1.8 40 48.1 1917 60.8 1991
Vermont 52.4 -1.6 44 44.8 1917 59.9 1975
West Virginia 59.6 -0.3 38 54.3 1997 67.3 1896
Northeast 54.8 -1.6 34 49.5 1917 62.1 1911

Rankings are for 109 years between 1895 and 2003. 1=coolest; 109=warmest.

May State Precipitation Averages

State May 2003 Driest Wettest
Precipitation Departure Pct Normal Rank Amount Year Amount Year
Connecticut 4.67 0.34 107% 80 0.60 1903 10.42 1984
Delaware 5.03 0.85 120% 90 0.34 1964 10.80 1948
Maine 3.53 -0.11 96% 64 0.77 1903 7.16 1984
Maryland 6.79 2.52 158% 106 0.80 1964 7.62 1989
Massachusetts 3.91 -0.00 99% 74 0.75 1903 8.77 1984
New Hampshire 4.32 0.56 114% 76 0.69 1903 9.58 1984
New Jersey 3.63 -0.65 84% 58 0.53 1903 8.29 1984
New York 4.76 1.08 129% 94 0.64 1903 7.03 1984
Pennsylvania 5.01 0.94 123% 90 1.43 1903 7.63 1989
Rhode Island 3.48 -0.24 93% 63 0.68 1939 9.00 1948
Vermont 4.17 0.33 108% 73 0.41 1903 8.47 1984
West Virginia 7.27 2.70 158% 108 1.46 1911 9.26 1996
Northeast 4.90 0.94 123% 93 1.23 1903 6.91 1984

Rankings are for 109 years between 1895 and 2003. 1=driest; 109=wettest.

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