| Monthly Observation SummaryAugust 1998 | |||||||||||||
| 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 | 82 | 59 | 0.00 | 0.00 | 31.56 | 0.00 | 15 | 77 | 20:38 | 30.20 | 30.37 | 33 | 85 |
| 2 | 84 | 56 | 0.00 | 0.00 | 31.56 | 0.00 | 16 | 77 | 20:36 | 30.21 | 30.37 | 24 | 95 |
| 3 | 88 | 55 | 0.00 | 0.00 | 31.56 | 0.00 | 12 | 76 | 20:34 | 30.16 | 30.29 | 28 | 98 |
| 4 | 89 | 60 | 0.00 | 0.00 | 31.56 | 0.00 | 18 | 76 | 20:32 | 30.16 | 30.26 | 33 | 92 |
| 5 | 88 | 60 | 0.00 | 0.00 | 31.56 | 0.00 | 18 | 75 | 20:31 | 30.18 | 30.29 | 29 | 94 |
| 6 | 89 | 59 | 0.00 | 0.00 | 31.56 | 0.00 | 15 | 76 | 20:29 | 30.16 | 30.27 | 28 | 98 |
| 7 | 89 | 63 | 0.00 | 0.00 | 31.56 | 0.00 | 13 | 80 | 20:29 | 30.21 | 30.32 | 45 | 100 |
| 8 | 88 | 70 | 0.00 | 0.00 | 31.56 | 0.00 | 16 | 80 | 20:29 | 30.27 | 30.40 | 50 | 92 |
| 9 | 89 | 69 | 0.01 | 0.01 | 31.57 | 0.04 | 14 | 80 | 20:25 | 30.13 | 30.34 | 53 | 96 |
| 10 | 88 | 71 | 0.62 | 0.63 | 32.19 | 1.60 | 31 | 79 | 20:22 | 29.91 | 30.16 | 55 | 98 |
| 11 | 88 | 69 | 0.01 | 0.64 | 32.20 | 0.04 | 18 | 79 | 20:24 | 29.87 | 29.99 | 43 | 98 |
| 12 | 83 | 67 | 0.00 | 0.64 | 32.20 | 0.00 | 18 | 79 | 20:24 | 29.98 | 30.20 | 48 | 91 |
| 13 | 87 | 63 | 0.00 | 0.64 | 32.20 | 0.00 | 13 | 78 | 20:21 | 30.12 | 30.23 | 38 | 89 |
| 14 | 84 | 69 | 0.02 | 0.66 | 32.22 | 0.04 | 19 | 77 | 20:18 | 30.02 | 30.16 | 55 | 97 |
| 15 | 90 | 69 | 0.00 | 0.66 | 32.22 | 0.00 | 15 | 78 | 20:17 | 29.99 | 30.09 | 35 | 92 |
| 16 | 84 | 68 | 0.00 | 0.66 | 32.22 | 0.00 | 8 | 71 | 20:12 | 30.04 | 30.16 | 52 | 93 |
| 17 | 86 | 72 | 0.08 | 0.74 | 32.30 | 0.16 | 18 | 78 | 20:16 | 29.99 | 30.12 | 59 | 97 |
| 18 | 89 | 70 | 0.00 | 0.74 | 32.30 | 0.00 | 23 | 77 | 20:14 | 29.95 | 30.07 | 45 | 94 |
| 19 | 73 | 56 | 0.00 | 0.74 | 32.30 | 0.00 | 22 | 77 | 20:15 | 30.05 | 30.27 | 39 | 82 |
| 20 | 82 | 53 | 0.00 | 0.74 | 32.30 | 0.00 | 16 | 79 | 20:12 | 30.26 | 30.35 | 32 | 88 |
| 21 | 90 | 55 | 0.00 | 0.74 | 32.30 | 0.00 | 12 | 78 | 20:11 | 30.16 | 30.31 | 27 | 95 |
| 22 | 92 | 66 | 0.00 | 0.74 | 32.30 | 0.00 | 16 | 78 | 20:09 | 30.04 | 30.20 | 39 | 88 |
| 23 | 94 | 69 | 0.00 | 0.74 | 32.30 | 0.00 | 14 | 79 | 20:09 | 29.91 | 30.09 | 39 | 92 |
| 24 | 94 | 72 | 0.00 | 0.74 | 32.30 | 0.00 | 19 | 77 | 20:02 | 29.88 | 29.99 | 31 | 90 |
| 25 | 96 | 70 | 0.00 | 0.74 | 32.30 | 0.00 | 19 | 77 | 20:01 | 29.85 | 30.02 | 34 | 79 |
| 26 | 96 | 75 | 0.01 | 0.75 | 32.31 | 0.04 | 20 | 79 | 20:04 | 29.91 | 30.02 | 38 | 96 |
| 27 | 84 | 70 | 0.03 | 0.78 | 32.34 | 0.16 | 20 | 78 | 20:02 | 29.98 | 30.09 | 59 | 96 |
| 28 | 89 | 72 | 0.00 | 0.78 | 32.34 | 0.00 | 22 | 78 | 20:01 | 29.93 | 30.05 | 45 | 85 |
| 29 | 91 | 69 | 0.00 | 0.78 | 32.34 | 0.00 | 19 | 78 | 20:00 | 29.93 | 29.99 | 40 | 92 |
| 30 | 92 | 70 | 0.00 | 0.78 | 32.34 | 0.00 | 18 | 78 | 19:58 | 29.95 | 30.07 | 31 | 83 |
| 31 | 91 | 68 | 0.00 | 0.78 | 32.34 | 0.00 | 19 | 77 | 19:56 | 29.95 | 30.04 | 33 | 95 |
| Avg. | 88.0 | 65.6 | |||||||||||
| Max. | 96 | 0.62 | 1.60 | 31 | 80 | 30.40 | 59 | 100 | |||||
| Min. | 53 | 8 | 71 | 29.85 | 24 | 79 | |||||||