NRCC Northeast Regional Climate Center  

May State Temperature Averages

State May 2005 Coolest Warmest
Temperature Departure Rank Average Year Average Year
Connecticut 53.2 -4.6 4 49.8 1917 63.1 1991
Delaware 58.2 -4.6 5 56.2 1917 69.2 2004
Maine 46.9 -4.4 7 44.3 1967 57.6 1911
Maryland 58.2 -4.2 7 56.5 1967+ 69.0 2004
Massachusetts 51.1 -5.1 6 48.8 1917 61.4 1944
New Hampshire 49.0 -5.1 7 45.0 1917 59.7 1911
New Jersey 56.5 -4.0 5 53.5 1917 66.1 1991
New York 51.2 -4.1 12 46.9 1917 61.6 1911
Pennsylvania 53.3 -4.4 4 51.0 1967 64.8 1944
Rhode Island 52.6 -3.9 6 48.1 1917 60.8 1991
Vermont 49.2 -4.8 10 44.8 1917 59.9 1975
West Virginia 55.9 -4.0 7 54.3 1997 67.3 1896
Northeast 52.0 -4.3 6 49.5 1917 62.1 1911

Rankings are for 111 years between 1895 and 2005. 1=coolest; 111=warmest.

May State Precipitation Averages

State May 2005 Driest Wettest
Precipitation Departure Pct Normal Rank Amount Year Amount Year
Connecticut 2.79 -1.54 64% 32 0.60 1903 10.42 1984
Delaware 4.84 0.66 115% 89 0.34 1964 10.80 1948
Maine 5.88 2.24 161% 104 0.77 1903 7.16 1984
Maryland 3.71 -0.56 86% 56 0.80 1964 7.62 1989
Massachusetts 5.32 1.41 135% 99 0.75 1903 8.77 1984
New Hampshire 5.19 1.43 138% 92 0.69 1903 9.58 1984
New Jersey 2.75 -1.53 64% 39 0.53 1903 8.29 1984
New York 1.60 -2.08 43% 6 0.64 1903 7.03 1984
Pennsylvania 2.07 -2.00 50% 12 1.43 1903 7.63 1989
Rhode Island 4.48 0.76 120% 92 0.68 1939 9.00 1948
Vermont 2.83 -1.01 73% 39 0.41 1903 8.47 1984
West Virginia 3.52 -1.05 76% 37 1.46 1911 9.26 1996
Northeast 3.20 -0.77 80% 45 1.23 1903 6.91 1984

Rankings are for 111 years between 1895 and 2005. 1=driest; 111=wettest.

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