September degree days

Background Information for this page
Return to radar list for Belchertown MA
Weather data for Belchertown MA.  Forecast values begin May 21, 2012
Estimated degree day accumulations are from March 1. Observational data began March 20. 
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
March 20
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
March 20
September 1 21 3179 +306 14 2161 +223
September 2 21 3200 +306 14 2175 +223
September 3 21 3220 +306 14 2189 +223
September 4 21 3241 +306 14 2202 +223
September 5 21 3261 +306 14 2216 +223
September 6 20 3281 +306 13 2229 +223
September 7 20 3300 +306 13 2241 +223
September 8 20 3320 +306 13 2254 +223
September 9 20 3339 +306 13 2267 +223
September 10 19 3358 +306 12 2279 +223
September 11 19 3377 +306 12 2291 +223
September 12 19 3395 +306 12 2303 +223
September 13 19 3414 +306 12 2314 +223
September 14 18 3432 +306 11 2326 +223
September 15 18 3449 +306 11 2337 +223
September 16 18 3467 +306 11 2348 +223
September 17 17 3484 +306 10 2358 +223
September 18 17 3500 +306 10 2368 +223
September 19 17 3517 +306 10 2378 +223
September 20 16 3532 +306 9 2388 +223
September 21 16 3548 +306 9 2397 +223
September 22 16 3564 +306 9 2406 +223
September 23 15 3578 +306 9 2415 +223
September 24 15 3593 +306 9 2423 +223
September 25 15 3607 +306 9 2432 +223
September 26 14 3621 +306 8 2440 +223
September 27 14 3635 +306 8 2448 +223
September 28 13 3648 +306 8 2455 +223
September 29 13 3661 +306 7 2462 +223
September 30 12 3673 +306 7 2469 +223