September, 1999
Weather Summary

Research and Education Center
Georgetown, DE

Sept. 1999 Julian Day Min. Temp. (C) Min. Temp. (F) Time Min. Temp Max. Temp (C) Max. Temp.  (F) Time Max. Temp Min.  RH% Time Min. RH% Max. RH% Time Max. RH% Total Solar Net Solar Rain (mm) Rain (inches) Mean Wind Speed (m/s) Mean Wind Dir Max. Wind (m/s) Time Max Wind Min. Soil Temp (C) Min. Soil Temp (F) Time Min. Soil Temp Max. Soil Temp (C) Max. Soil Temp (F) Time Max. Soil Temp
1 244 18.5 65.4 615 23.0 73.3 1643 73.2 216 92.9 2231 106.4 85.2 0.0 0.00 5.11 1.2 8.39 1645 18.45 65.21 335 22.17 71.91 1649
2 245 19.8 67.6 22 24.3 75.7 1545 87.0 3 96.2 1122 146.9 117.5 0.0 0.00 4.29 1.6 7.18 744 20 68.00 253 24.03 75.25 1616
3 246 21.0 69.8 723 23.7 74.7 1510 92.6 1139 99.7 2357 103.1 82.5 0.0 0.00 3.31 0.7 5.70 850 21.58 70.84 638 24.14 75.45 1519
4 247 22.2 72.0 100 26.0 78.9 1146 85.8 1310 100.2 428 139.2 111.3 1.3 0.05 2.98 356.2 6.48 2324 22.47 72.45 228 25.94 78.69 1312
5 248 24.0 75.2 940 27.0 80.6 1457 84.1 1503 98.1 941 171.7 137.3 7.4 0.29 3.66 359.2 6.63 331 23.51 74.32 634 26.64 79.95 1503
6 249 24.1 75.4 625 29.2 84.6 1313 70.5 1328 96.0 644 347.7 278.1 0.0 0.00 3.29 359.2 6.61 1049 23.51 74.32 622 30.86 87.55 1337
7 250 21.7 71.1 330 28.8 83.9 1530 69.0 1540 99.9 554 253.0 202.4 18.5 0.73 2.63 358.0 6.07 203 23.04 73.47 710 29.87 85.77 1535
8 251 22.4 72.4 240 29.4 84.8 1354 63.4 1610 99.8 426 412.3 329.8 0.0 0.00 2.10 357.4 5.05 1530 23.34 74.01 716 32.91 91.24 1329
9 252 22.1 71.8 0 29.8 85.6 1523 68.0 1523 99.7 430 311.3 249.0 1.5 0.06 1.95 356.9 5.63 1829 23.91 75.04 523 31.36 88.45 1524
10 253 18.3 65.0 0 26.9 80.4 1512 65.4 1453 100.6 1128 241.4 193.1 16.0 0.63 1.24 357.7 3.77 1438 21.49 70.68 2359 29.91 85.84 1536
11 254 13.1 55.6 2355 25.8 78.5 1541 38.9 1527 99.5 237 455.8 364.7 0.0 0.00 1.51 351.4 4.85 1028 18.23 64.81 715 28.77 83.79 1324
12 255 11.1 52.0 606 26.9 80.5 1648 30.7 1613 99.8 728 443.9 355.1 0.0 0.00 0.85 347.8 4.35 1346 16.33 61.39 659 28.62 83.52 1302
13 256 11.8 53.3 338 25.4 77.8 1151 58.2 1150 100.3 800 346.3 277.0 0.0 0.00 0.98 350.8 3.90 1636 17.1 62.78 628 26.77 80.19 1528
14 257 17.0 62.6 26 26.1 79.0 1457 66.5 1430 99.7 112 231.9 185.5 0.0 0.00 1.24 355.0 4.11 1249 19.9 67.82 342 26.74 80.13 1502
15 258 19.8 67.7 29 22.9 73.2 1329 94.4 1332 100.1 432 82.6 66.1 19.1 0.75 2.12 359.2 5.28 2206 21.05 69.89 420 24.3 75.74 1330
16 259 16.0 60.7 2105 25.4 77.6 917 72.7 2325 99.7 100 47.1 37.7 141.0 5.55 5.35 345.3 11.42 254 17.47 63.45 2359 24.73 76.51 1529
17 260 12.5 54.4 2313 22.6 72.7 1601 45.6 1517 89.9 2329 453.8 363.1 0.0 0.00 3.11 349.9 6.67 7 15.1 59.18 705 25.03 77.05 1318
18 261 9.0 48.2 656 23.7 74.7 1543 44.2 1500 96.3 2355 439.5 351.6 0.0 0.00 1.02 349.7 3.70 1635 13.01 55.42 708 27.14 80.85 1327
19 262 9.1 48.3 646 24.1 75.4 1358 44.2 1356 99.2 758 423.2 338.6 0.0 0.00 0.87 350.3 4.21 1330 13.58 56.44 659 27.78 82.00 1331
20 263 10.8 51.5 547 25.2 77.3 1503 49.6 1501 99.3 810 371.3 297.1 0.0 0.00 1.19 351.8 4.55 1701 14.8 58.64 641 27.88 82.18 1325
21 264 12.6 54.7 0 21.9 71.4 1440 81.3 1417 99.3 1843 121.2 97.0 48.5 1.91 2.08 356.6 6.53 2120 16.11 61.00 0 23.12 73.62 1444
22 265 8.2 46.8 2311 17.4 63.2 1605 57.4 1626 95.6 133 309.5 247.6 0.8 0.03 3.80 349.9 8.66 1708 12.51 54.52 0 20.91 69.64 1335
23 266 7.4 45.4 58 22.3 72.1 1604 43.0 1620 89.7 100 422.1 337.7 0.0 0.00 2.10 345.0 5.80 1226 10.73 51.31 702 23.4 74.12 1504
24 267 11.4 52.5 627 24.7 76.5 1511 38.6 1452 92.8 713 422.0 337.6 0.0 0.00 2.75 347.6 6.78 1451 12.77 54.99 707 23.94 75.09 1321
25 268 14.5 58.0 642 27.9 82.1 1538 40.1 1607 96.3 2225 402.3 321.8 0.0 0.00 1.76 348.7 4.87 1302 14.59 58.26 650 26.61 79.90 1453
26 269 14.1 57.3 320 24.7 76.4 1257 72.4 1233 99.0 2306 369.4 295.5 0.0 0.00 1.41 354.2 4.48 1247 15.88 60.58 651 26.87 80.37 1324
27 270 16.7 62.0 312 25.5 77.8 1318 78.2 1333 100.2 936 204.6 163.7 0.0 0.00 1.12 355.5 4.73 1402 18.44 65.19 248 25.54 77.97 1424
28 271 18.4 65.1 0 26.7 80.1 1401 54.3 1407 99.0 500 269.2 215.4 0.0 0.00 1.42 353.4 4.93 1519 19.54 67.17 526 26.9 80.42 1403
29 272 17.8 64.1 147 26.3 79.3 1422 49.7 1621 98.9 119 328.4 262.7 0.0 0.00 2.19 352.2 6.04 2345 19.35 66.83 709 27.65 81.77 1301
30 273 11.1 51.9 2349 22.2 72.0 205 49.5 1712 95.7 351 387.0 309.6 14.5 0.57 4.08 346.3 10.05 335 14.25 57.65 0 23.23 73.81 1313
Month Average   15.9 60.6   25.2 77.3   62.3   97.8     233.7     2.38 317.6 5.91   18.1 64.5   26.5 79.6  
Month Total                           268.5 10.57                    
                                                   
Year Total                             35.25