September, 1999
Monthly Weather Summary

Research and Education Center
Georgetown, Delaware

1999 Julian Date Max. Temp.   F Max Temp   C Min. Temp.   F Min. Temp   C GDD40 GDD50 GDD65 Rainfall Inches Rainfall mm Max. Soil Temp. Min. Soil Temp.
1-Sep 244 73 23 65 19 29.3 19.3 4.3 0.00 0.0 72 65
2 245 76 24 68 20 31.6 21.6 6.6 0.00 0.0 75 68
3 246 75 24 70 21 32.2 22.2 7.2 0.00 0.0 75 71
4 247 79 26 72 22 35.4 25.4 10.4 0.05 1.3 79 72
5 248 81 27 75 24 37.9 27.9 12.9 0.29 7.4 80 74
6 249 85 29 75 24 40.0 30.0 15.0 0.00 0.0 88 74
7 250 84 29 71 22 37.5 27.5 12.5 0.73 18.5 86 73
8 251 85 29 72 22 38.6 28.6 13.6 0.00 0.0 91 74
9 252 86 30 72 22 38.7 28.7 13.7 0.06 1.5 88 75
10 253 80 27 65 18 32.7 22.7 7.7 0.63 16.0 86 71
11 254 78 26 56 13 27.0 17.0 2.0 0.00 0.0 84 65
12 255 80 27 52 11 26.2 16.2 1.2 0.00 0.0 84 61
13 256 78 25 53 12 25.5 15.5 0.5 0.00 0.0 80 63
14 257 79 26 63 17 30.8 20.8 5.8 0.00 0.0 80 68
15 258 73 23 68 20 30.4 20.4 5.4 0.75 19.1 76 70
16 259 78 25 61 16 29.2 19.2 4.2 5.55 141.0 77 63
17 260 73 23 54 12 23.6 13.6 0.0 0.00 0.0 77 59
18 261 75 24 48 9 21.4 11.4 0.0 0.00 0.0 81 55
19 262 75 24 48 9 21.9 11.9 0.0 0.00 0.0 82 56
20 263 77 25 52 11 24.4 14.4 0.0 0.00 0.0 82 59
21 264 71 22 55 13 23.1 13.1 0.0 1.91 48.5 74 61
22 265 63 17 47 8 15.0 5.0 0.0 0.03 0.8 70 55
23 266 72 22 45 7 18.8 8.8 0.0 0.00 0.0 74 51
24 267 77 25 53 11 24.5 14.5 0.0 0.00 0.0 75 55
25 268 82 28 58 14 30.1 20.1 5.1 0.00 0.0 80 58
26 269 76 25 57 14 26.9 16.9 1.9 0.00 0.0 80 61
27 270 78 25 62 17 29.9 19.9 4.9 0.00 0.0 78 65
28 271 80 27 65 18 32.6 22.6 7.6 0.00 0.0 80 67
29 272 79 26 64 18 31.7 21.7 6.7 0.00 0.0 82 67
30 273 72 22 52 11 22.0 12.0 0.0 0.57 14.5 74 58
Month Average   77 25.2 61 15.9           80 65
Month Total                 10.57 268.51    
                         
Year Average   69 21 49 10           72 54
Year Total           5538.319 3460.162 1156.896 35.25 895.38