September degree days

Background Information for this page
Return to Apple list for Easthampton MA
Weather data for Easthampton MA.  Forecast values begin October 2, 2017
Estimated degree day accumulations are from March 1. Observational data began April 7. 
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 7
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 7
September 1 13 3119 -19 7 2124 -55
September 2 13 3132 -30 7 2131 -64
September 3 13 3144 -41 6 2137 -75
September 4 24 3168 -40 17 2153 -74
September 5 29 3196 -34 22 2175 -68
September 6 21 3217 -36 14 2189 -71
September 7 19 3236 -41 12 2201 -75
September 8 15 3251 -47 9 2209 -82
September 9 15 3266 -54 8 2217 -89
September 10 16 3282 -61 9 2226 -95
September 11 17 3299 -65 11 2237 -99
September 12 20 3319 -66 14 2250 -99
September 13 23 3342 -64 16 2266 -98
September 14 28 3370 -57 21 2287 -91
September 15 28 3398 -50 21 2308 -83
September 16 27 3425 -43 20 2328 -76
September 17 27 3452 -36 20 2348 -69
September 18 25 3477 -31 18 2366 -65
September 19 25 3501 -25 18 2384 -59
September 20 28 3529 -16 21 2404 -51
September 21 26 3555 -9 19 2424 -43
September 22 23 3579 -3 16 2440 -38
September 23 27 3606 +6 20 2460 -30
September 24 29 3635 +18 22 2482 -18
September 25 31 3666 +32 24 2507 -4
September 26 29 3696 +44 22 2529 +8
September 27 30 3726 +58 23 2552 +21
September 28 25 3751 +67 18 2570 +29
September 29 11 3762 +62 6 2576 +25
September 30 8 3769 +55 2 2577 +18