| Date | Observed & Forecast Degree Days base 43 for this day |
Cumulative Observed & Forecast DD base 43 | Approximate Climatic Average cumulative DD43 | Observed & Forecast Degree Days base 50 for this day |
Cumulative Observed &
Forecast DD base 50F (Climatic average in parentheses) |
Cumulative DD50 deviation from climatic average | ||
| September 1 | 15 | 2722 | (2937) | 9 | 1776 | (2002) | -226 | |
| September 2 | 18 | 2740 | (2959) | 10 | 1787 | (2017) | -230 | |
| September 3 | 22 | 2761 | (2980) | 15 | 1801 | (2031) | -230 | |
| September 4 | 23 | 2784 | (3002) | 16 | 1817 | (2046) | -229 | |
| September 5 | 22 | 2806 | (3023) | 15 | 1832 | (2060) | -228 | |
| September 6 | 13 | 2819 | (3043) | 6 | 1839 | (2074) | -235 | |
| September 7 | 13 | 2832 | (3064) | 8 | 1847 | (2087) | -241 | |
| September 8 | 20 | 2853 | (3084) | 11 | 1858 | (2101) | -243 | |
| September 9 | 18 | 2870 | (3104) | 9 | 1867 | (2114) | -246 | |
| September 10 | 11 | 2881 | (3123) | 5 | 1873 | (2126) | -253 | |
| September 11 | 12 | 2893 | (3142) | 6 | 1878 | (2138) | -260 | |
| September 12 | 18 | 2911 | (3160) | 11 | 1889 | (2150) | -261 | |
| September 13 | 22 | 2933 | (3178) | 15 | 1904 | (2161) | -257 | |
| September 14 | 18 | 2951 | (3196) | 9 | 1914 | (2173) | -259 | |
| September 15 | 19 | 2970 | (3214) | 12 | 1925 | (2184) | -259 | |
| September 16 | 12 | 2982 | (3231) | 5 | 1930 | (2194) | -265 | |
| September 17 | 10 | 2992 | (3248) | 4 | 1934 | (2205) | -271 | |
| September 18 | 14 | 3005 | (3265) | 7 | 1941 | (2215) | -274 | |
| September 19 | 10 | 3015 | (3281) | 5 | 1946 | (2225) | -279 | |
| September 20 | 12 | 3027 | (3297) | 7 | 1953 | (2235) | -282 | |
| September 21 | 14 | 3040 | (3312) | 8 | 1962 | (2244) | -282 | |
| September 22 | 17 | 3057 | (3327) | 10 | 1971 | (2253) | -282 | |
| September 23 | 27 | 3083 | (3342) | 20 | 1991 | (2262) | -271 | |
| September 24 | 22 | 3106 | (3356) | 12 | 2002 | (2270) | -268 | |
| September 25 | 10 | 3116 | (3370) | 5 | 2007 | (2278) | -271 | |
| September 26 | 7 | 3123 | (3384) | 3 | 2011 | (2287) | -276 | |
| September 27 | 13 | 3136 | (3398) | 5 | 2016 | (2294) | -278 | |
| September 28 | 21 | 3157 | (3411) | 14 | 2030 | (2302) | -272 | |
| September 29 | 16 | 3172 | (3423) | 9 | 2039 | (2309) | -270 | |
| September 30 | 8 | 3180 | (3435) | 3 | 2042 | (2316) | -274 | |