NRCC Northeast Regional Climate Center  

May State Temperature Averages

State May 1998 Coolest Warmest
Temperature Departure Rank Average Year Average Year
Connecticut 61.5 4.3 101 49.8 1917 63.1 1991
Delaware 64.8 2.3 89 56.2 1917 68.8 1991
Maine 56.1 5.3 103 44.3 1967 57.6 1911
Maryland 65.4 3.3 96 56.5 1967+ 68.5 1991
Massachusetts 59.4 3.6 96 48.8 1917 61.4 1944
New Hampshire 57.9 4.2 101 45.0 1917 59.7 1911
New Jersey 63.5 3.3 96 53.5 1917 66.1 1991
New York 60.8 5.9 102 46.9 1917 61.6 1911
Pennsylvania 62.5 5.0 99 51.0 1967 64.8 1944
Rhode Island 60.1 4.2 103 48.1 1917 60.8 1991
Vermont 58.8 5.0 101 44.8 1917 59.9 1975
West Virginia 63.0 3.0 84 54.3 1997 67.3 1896
Northeast 60.8 4.7 99 49.5 1917 62.1 1911

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

May State Precipitation Averages

State May 1998 Driest Wettest
Precipitation Departure Pct Normal Rank Amount Year Amount Year
Connecticut 5.91 1.62 137% 95 0.60 1903 10.42 1984
Delaware 4.55 0.63 116% 77 0.34 1964 10.80 1948
Maine 3.15 -0.40 88% 52 0.77 1903 7.16 1984
Maryland 4.71 0.61 114% 79 0.80 1964 7.62 1989
Massachusetts 4.79 0.90 123% 90 0.75 1903 8.77 1984
New Hampshire 3.26 -0.46 87% 54 0.69 1903 9.58 1984
New Jersey 5.81 1.67 140% 93 0.53 1903 8.29 1984
New York 3.52 -0.07 97% 62 0.64 1903 7.03 1984
Pennsylvania 4.28 0.26 106% 69 1.43 1903 7.63 1989
Rhode Island 5.62 1.76 145% 96 0.68 1939 9.00 1948
Vermont 2.77 -0.92 75% 34 0.41 1903 8.47 1984
West Virginia 4.99 0.79 118% 76 1.46 1911 9.26 1996
Northeast 4.04 0.20 105% 69 1.23 1903 6.91 1984

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.