September degree days

Background Information for this page
Return to radar list for Greenville RI
Weather data for Greenville RI.  Forecast values begin October 3, 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 43
for this day
Cumulative Observed & Forecast DD base 43 Cumulative DD43 (NOT calender days) deviation from climatic average since
April 2
Observed & Forecast Degree Days base 50
for this day
 Cumulative Observed & Forecast
DD base 50F

(Climatic average in parentheses)
Cumulative DD50 (NOT calendar days) deviation from climatic average  since
April 2
September 1 24 3289 +257 17 2286 +214
September 2 22 3311 +258 15 2301 +214
September 3 27 3338 +263 20 2321 +219
September 4 30 3367 +271 23 2343 +227
September 5 30 3397 +279 23 2366 +236
September 6 19 3417 +277 12 2379 +234
September 7 18 3435 +275 11 2390 +231
September 8 19 3454 +273 12 2402 +229
September 9 25 3479 +277 18 2420 +234
September 10 22 3501 +280 15 2435 +236
September 11 19 3520 +279 12 2447 +235
September 12 26 3545 +285 19 2465 +241
September 13 28 3573 +293 21 2486 +249
September 14 30 3603 +304 23 2509 +259
September 15 24 3627 +310 17 2526 +265
September 16 11 3638 +302 5 2531 +258
September 17 11 3649 +295 6 2537 +252
September 18 13 3662 +290 7 2543 +248
September 19 13 3674 +286 7 2550 +244
September 20 17 3692 +286 10 2560 +244
September 21 23 3714 +292 16 2576 +249
September 22 26 3740 +302 19 2595 +258
September 23 26 3767 +313 19 2614 +268
September 24 29 3795 +326 22 2636 +281
September 25 28 3824 +339 21 2658 +293
September 26 28 3851 +352 21 2678 +305
September 27 25 3876 +362 18 2696 +315
September 28 24 3901 +372 17 2713 +323
September 29 24 3924 +382 17 2730 +332
September 30 23 3947 +391 16 2746 +340