| Monthly Observation Summary - April 2002 | |||||||||||||
| 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 | 57 | 39 | 0.01 | 0.01 | 7.81 | 0.04 | 34 | 84 | 18:50 | 29.80 | 30.09 | 32 | 100 |
| 2 | 70 | 36 | 0.00 | 0.01 | 7.81 | 0.00 | 30 | 85 | 18:50 | 29.88 | 30.16 | 33 | 90 |
| 3 | 74 | 38 | 0.00 | 0.01 | 7.81 | 0.00 | 38 | 86 | 18:52 | 29.84 | 30.23 | 44 | 90 |
| 4 | 51 | 32 | 0.00 | 0.01 | 7.81 | 0.00 | 24 | 86 | 18:53 | 30.21 | 30.34 | 35 | 67 |
| 5 | 49 | 32 | 0.00 | 0.01 | 7.81 | 0.00 | 28 | 86 | 18:53 | 30.13 | 30.32 | 30 | 75 |
| 6 | 44 | 30 | 0.00 | 0.01 | 7.81 | 0.00 | 26 | 86 | 18:55 | 30.16 | 30.37 | 35 | 67 |
| 7 | 53 | 27 | 0.00 | 0.01 | 7.81 | 0.00 | 18 | 85 | 19:55 | 30.32 | 30.49 | 31 | 79 |
| 8 | 70 | 38 | 0.00 | 0.01 | 7.81 | 0.00 | 23 | 85 | 19:54 | 30.18 | 30.38 | 39 | 92 |
| 9 | 73 | 56 | 0.57 | 0.58 | 8.38 | 0.60 | 33 | 86 | 19:53 | 30.15 | 30.21 | 55 | 100 |
| 10 | 67 | 46 | 0.00 | 0.58 | 8.38 | 0.00 | 26 | 85 | 19:59 | 30.20 | 30.48 | 31 | 100 |
| 11 | 66 | 38 | 0.00 | 0.58 | 8.38 | 0.00 | 25 | 85 | 20:01 | 30.46 | 30.60 | 33 | 100 |
| 12 | 62 | 45 | 0.00 | 0.58 | 8.38 | 0.00 | 13 | 83 | 20:00 | 30.31 | 30.53 | 72 | 100 |
| 13 | 73 | 55 | 0.00 | 0.58 | 8.38 | 0.00 | 26 | 85 | 20:00 | 30.13 | 30.32 | 53 | 100 |
| 14 | 80 | 58 | 0.00 | 0.58 | 8.38 | 0.00 | 29 | 86 | 19:59 | 29.96 | 30.18 | 44 | 100 |
| 15 | 84 | 61 | 0.01 | 0.59 | 8.39 | 0.04 | 27 | 86 | 20:03 | 29.96 | 30.12 | 41 | 91 |
| 16 | 91 | 63 | 0.00 | 0.59 | 8.39 | 0.00 | 14 | 86 | 20:05 | 30.10 | 30.24 | 27 | 90 |
| 17 | 94 | 61 | 0.00 | 0.59 | 8.39 | 0.00 | 19 | 87 | 20:04 | 30.04 | 30.20 | 24 | 95 |
| 18 | 92 | 65 | 0.46 | 1.05 | 8.85 | 0.84 | 23 | 86 | 20:03 | 30.05 | 30.21 | 34 | 98 |
| 19 | 90 | 60 | 0.04 | 1.09 | 8.89 | 0.16 | 28 | 87 | 20:06 | 29.93 | 30.07 | 30 | 100 |
| 20 | 80 | 58 | 0.00 | 1.09 | 8.89 | 0.00 | 21 | 85 | 20:08 | 29.87 | 29.99 | 47 | 87 |
| 21 | 58 | 43 | 0.10 | 1.19 | 8.99 | 0.12 | 21 | 69 | 20:03 | 29.95 | 30.05 | 58 | 99 |
| 22 | 65 | 42 | 0.53 | 1.72 | 9.52 | 0.36 | 38 | 87 | 20:08 | 29.79 | 30.04 | 43 | 100 |
| 23 | 55 | 36 | 0.00 | 1.72 | 9.52 | 0.00 | 26 | 87 | 20:12 | 30.02 | 30.21 | 33 | 72 |
| 24 | 64 | 37 | 0.00 | 1.72 | 9.52 | 0.00 | 16 | 86 | 20:12 | 30.18 | 30.35 | 26 | 78 |
| 25 | 61 | 45 | 0.16 | 1.88 | 9.68 | 0.16 | 31 | 86 | 20:14 | 29.96 | 30.21 | 25 | 100 |
| 26 | 65 | 39 | 0.00 | 1.88 | 9.68 | 0.00 | 23 | 86 | 20:16 | 30.13 | 30.31 | 26 | 82 |
| 27 | 64 | 39 | 0.07 | 1.95 | 9.75 | 0.12 | 19 | 85 | 20:06 | 30.18 | 30.46 | 38 | 100 |
| 28 | 73 | 50 | 1.97 | 3.92 | 11.72 | 1.48 | 39 | 86 | 20:18 | 29.52 | 30.18 | 65 | 100 |
| 29 | 63 | 46 | 0.00 | 3.92 | 11.72 | 0.00 | 34 | 87 | 20:15 | 29.63 | 29.99 | 56 | 70 |
| 30 | 69 | 43 | 0.00 | 3.92 | 11.72 | 0.00 | 38 | 86 | 20:11 | 29.84 | 30.05 | 30 | 83 |
| Avg. | 68.6 | 45.3 | |||||||||||
| Max. | 94 | 1.97 | 1.48 | 39 | 87 | 30.60 | 72 | 100 | |||||
| Min. | 27 | 13 | 69 | 29.52 | 24 | 67 | |||||||