Scab Ascospore Maturity
Background Information for this page
Return to Apple list for Westhampton MA
Scab degree day accumulation stops if there is < 1/8th inch rain for 7 days,
and resumes when 7 day rain total exceeds 1/8th inch.
Weather data for Westhampton MA.  Forecast values begin September 18, 2018
Date Observed and Forecast
Inches Rain
Cumulative Scab Degree Days 1 in 20 chance that cumulative ascospore maturity is
less than:
Estimated Cumulative
Ascospore Maturity
1 in 20 chance that cumulative ascospore maturity is
greater than:
Wed, April 18  0 8 1% 5%
Thu, April 19  0.20 15 1% 5%
Fri, April 20  0 23 1% 6%
Sat, April 21  0 35 1% 7%
Sun, April 22  0 48 1% 8%
Mon, April 23  0 64 2% 9%
Tue, April 24  0 83   2% 11%
Wed, April 25  0.95 103 3% 13%
Thu, April 26  0.28 125 3% 16%
Fri, April 27  0.33 141 1% 4% 18%
Sat, April 28  0.03 167 1% 6% 22%
Sun, April 29  0.24 181 1% 7% 24%
Mon, April 30  0.08 193 1% 7% 27%
Tue, May 1  0 216 2% 10% 31%
Wed, May 2  0 241 2% 12% 36%
Thu, May 3  0.13 264 3% 15% 41%
Fri, May 4  0.19 288 4% 18% 46%
Sat, May 5  0 316 6% 23% 52%
Sun, May 6  0.39 340 8% 27% 58%
Mon, May 7  0 367 10% 32% 64%
Tue, May 8  0 394 13% 37% 69%
Wed, May 9  0 423 16% 44% 74%
Thu, May 10  0 450 20% 50% 79%
Fri, May 11  0 476 25% 55% 83%
Sat, May 12  0.24 492 28% 59% 85%
Sun, May 13  0 513 32% 63% 88%
Mon, May 14  0 543 38% 69% 91%
Tue, May 15  0.96 571 44% 75% 93%
Wed, May 16  0 598 50% 79% 95%
Thu, May 17  0 626 56% 83% 96%
Fri, May 18  0 651 61% 87% 97%
Sat, May 19  0.48 668 65% 89% 98%
Sun, May 20  0.12 696 71% 91% 99%
Mon, May 21  0 724 76% 94% 99%
Tue, May 22  0.09 749 80% 95% 99%
Wed, May 23  0 776 84% 96% 100%
Thu, May 24  0 804 87% 97% 100%
Fri, May 25  0 830 90% 98% 100%
Sat, May 26  0 830 90% 98% 100%
Sun, May 27  0.27 857 92% 99% 100%
Mon, May 28  0.02 884 94% 99% 100%
Tue, May 29  0 908 96% 99% 100%
Wed, May 30  0 934 97% 100% 100%
Thu, May 31  0 961 98% 100% 100%
Fri, June 1  0.03 985 98% 100% 100%
Sat, June 2  0 985 98% 100% 100%
Sun, June 3  0 985 98% 100% 100%
Mon, June 4  0.79 1005 99% 100% 100%