| Monthly Observation SummarySeptember 2000 | |||||||||||||
| Station "APLMD" (JHU/Applied Physics Laboratory), Laurel, MD (39°10'02"N, 76°53'52"W, 438 ft) | |||||||||||||
| Day | Max. Temp. | Min. Temp. | Rain Day | Rain Month | Rain Year | Max. Rn Rate | Peak Gust | Max. Light | Last Light | Min. Press. | Max. Press. | Min. RH | Max. RH |
| (°F) | (°F) | (in.) | (in.) | (in.) | (in./hr) | (mph) | (in.) | (in.) | (%) | (%) | |||
| 1 | 88 | 73 | 0.06 | 0.06 | 32.91 | 0.16 | 14 | 78 | 19:50 | 29.99 | 30.12 | 59 | 100 |
| 2 | 84 | 72 | 0.10 | 0.16 | 33.01 | 0.16 | 11 | 77 | 19:46 | 29.91 | 30.04 | 71 | 100 |
| 3 | 84 | 70 | 1.99 | 2.15 | 35.00 | 3.84 | 14 | 79 | 19:43 | 29.84 | 29.96 | 67 | 100 |
| 4 | 85 | 67 | 0.08 | 2.23 | 35.08 | 0.28 | 28 | 78 | 19:45 | 29.80 | 29.99 | 56 | 100 |
| 5 | 70 | 51 | 0.00 | 2.23 | 35.08 | 0.00 | 24 | 77 | 19:48 | 29.99 | 30.32 | 40 | 93 |
| 6 | 70 | 48 | 0.00 | 2.23 | 35.08 | 0.00 | 16 | 78 | 19:41 | 30.31 | 30.43 | 49 | 98 |
| 7 | 74 | 49 | 0.00 | 2.23 | 35.08 | 0.00 | 11 | 76 | 19:45 | 30.20 | 30.37 | 48 | 100 |
| 8 | 79 | 51 | 0.00 | 2.23 | 35.08 | 0.00 | 16 | 76 | 19:38 | 30.09 | 30.21 | 53 | 100 |
| 9 | 86 | 65 | 0.00 | 2.23 | 35.08 | 0.00 | 8 | 78 | 19:41 | 30.05 | 30.16 | 47 | 100 |
| 10 | 87 | 62 | 0.00 | 2.23 | 35.08 | 0.00 | 13 | 77 | 19:37 | 30.07 | 30.18 | 48 | 100 |
| 11 | 84 | 65 | 0.00 | 2.23 | 35.08 | 0.00 | 14 | 78 | 19:35 | 30.04 | 30.18 | 53 | 100 |
| 12 | 84 | 69 | 0.00 | 2.23 | 35.08 | 0.00 | 21 | 76 | 19:31 | 29.88 | 30.09 | 55 | 97 |
| 13 | 82 | 60 | 0.00 | 2.23 | 35.08 | 0.00 | 19 | 77 | 19:35 | 29.88 | 30.02 | 47 | 94 |
| 14 | 81 | 55 | 0.00 | 2.23 | 35.08 | 0.00 | 18 | 75 | 19:24 | 29.73 | 30.02 | 43 | 99 |
| 15 | 72 | 53 | 0.00 | 2.23 | 35.08 | 0.00 | 31 | 76 | 19:31 | 29.68 | 29.85 | 42 | 97 |
| 16 | 65 | 48 | 0.00 | 2.23 | 35.08 | 0.00 | 24 | 78 | 19:30 | 29.82 | 30.07 | 52 | 92 |
| 17 | 72 | 47 | 0.00 | 2.23 | 35.08 | 0.00 | 18 | 76 | 19:29 | 30.02 | 30.16 | 31 | 92 |
| 18 | 77 | 53 | 0.00 | 2.23 | 35.08 | 0.00 | 12 | 76 | 19:23 | 30.05 | 30.15 | 40 | 95 |
| 19 | 64 | 58 | 2.08 | 4.31 | 37.16 | 1.24 | 23 | 61 | 19:20 | 29.77 | 30.07 | 90 | 100 |
| 20 | 87 | 55 | 0.00 | 4.31 | 37.16 | 0.00 | 19 | 75 | 19:22 | 29.77 | 29.96 | 36 | 100 |
| 21 | 75 | 56 | 0.00 | 4.31 | 37.16 | 0.00 | 34 | 76 | 19:22 | 29.71 | 30.10 | 38 | 84 |
| 22 | 73 | 48 | 0.00 | 4.31 | 37.16 | 0.00 | 13 | 75 | 19:19 | 30.07 | 30.23 | 40 | 100 |
| 23 | 72 | 57 | 0.00 | 4.31 | 37.16 | 0.00 | 11 | 68 | 19:11 | 29.87 | 30.12 | 81 | 100 |
| 24 | 80 | 61 | 0.00 | 4.31 | 37.16 | 0.00 | 20 | 76 | 19:13 | 29.77 | 29.91 | 64 | 100 |
| 25 | 61 | 45 | 2.30 | 6.61 | 39.46 | 0.64 | 23 | 64 | 18:55 | 29.80 | 29.98 | 84 | 100 |
| 26 | 51 | 45 | 0.52 | 7.13 | 39.98 | 0.28 | 23 | 67 | 19:12 | 29.79 | 30.09 | 94 | 100 |
| 27 | 69 | 45 | 0.00 | 7.13 | 39.98 | 0.00 | 14 | 73 | 19:12 | 30.07 | 30.20 | 47 | 100 |
| 28 | 71 | 51 | 0.00 | 7.13 | 39.98 | 0.00 | 18 | 75 | 19:07 | 30.07 | 30.26 | 48 | 92 |
| 29 | 65 | 41 | 0.00 | 7.13 | 39.98 | 0.00 | 14 | 76 | 19:09 | 30.24 | 30.40 | 39 | 100 |
| 30 | 70 | 41 | 0.00 | 7.13 | 39.98 | 0.00 | 11 | 76 | 19:07 | 30.20 | 30.35 | 46 | 100 |
| Avg. | 75.4 | 55.4 | |||||||||||
| Max. | 88 | 2.30 | 3.84 | 34 | 79 | 30.43 | 94 | 100 | |||||
| Min. | 41 | 8 | 61 | 29.68 | 31 | 84 | |||||||