May degree days

Background Information for this page
Return to radar list for Greenville RI
Weather data for Greenville RI.  Forecast values begin September 20, 2011
Estimated degree day accumulations are from March 1. Observational data began April 2. 
The influence of warmer or colder than average winter are not accounted for in the accumulations.
Date Observed & Forecast Degree Days base 43F
for this day
Cumulative Observed & Forecast DD base 43F
(Climatic average in parentheses)
Number of CALENDAR days ahead (red) or behind (blue) climatic average DD43 since
April 2
Observed & Forecast Degree days base 50F
for this day
 Cumulative Observed & Forecast DD base 50
(Climatic average in parentheses)
Number of CALENDAR days ahead (red) or behind (blue) climatic average DD50 since
April 2
May 1 8 265  (219) +4 3 106  (82) +4
May 2 11 276  (230) +4 6 113  (88) +4
May 3 16 292  (240) +4 9 122  (93) +4
May 4 13 305  (251) +4 6 128  (99) +4
May 5 7 312  (262) +4 2 131  (105) +3
May 6 13 325  (274) +4 8 138  (112) +3
May 7 13 338  (285) +4 7 145  (118) +3
May 8 11 349  (297) +4 5 150  (125) +3
May 9 14 364  (309) +4 8 157  (131) +3
May 10 11 375  (322) +4 4 161  (138) +3
May 11 11 385  (334) +3 4 166  (146) +2
May 12 11 396  (348) +3 5 171  (153) +2
May 13 12 408  (361) +3 7 177  (161) +2
May 14 11 419  (374) +3 5 182  (169) +1
May 15 14 433  (388) +3 7 189  (177) +1
May 16 7 439  (402) +2 1 189  (185) 0
May 17 7 446  (417) +1 1 190  (194) 0
May 18 12 458  (432) +1 5 195  (203) 0
May 19 15 474  (447) +1 8 204  (212) 0
May 20 16 490  (462) +1 9 213  (221) 0
May 21 17 506  (478) +1 10 222  (231) -1
May 22 9 516  (494) +1 3 225  (241) -1
May 23 12 527  (510) +1 5 230  (251) -1
May 24 23 550  (527) +1 16 246  (261) 0
May 25 24 574  (544) +1 17 263  (272) 0
May 26 22 596  (561) +1 15 278  (282) 0
May 27 28 624  (579) +2 21 299  (293) 0
May 28 26 650  (597) +2 19 318  (305) +1
May 29 28 678  (615) +3 21 339  (316) +1
May 30 31 709  (633) +3 24 363  (328) +2
May 31 29 737  (652) +3 22 384  (340) +2