| Monthly Observation SummaryMarch 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 | 59 | 43 | 0.01 | 0.01 | 12.26 | 0.04 | 12 | 75 | 18:17 | 29.73 | 29.82 | 41 | 100 |
| 2 | 57 | 39 | 0.28 | 0.29 | 12.54 | 0.16 | 17 | 74 | 18:12 | 29.54 | 29.76 | 45 | 96 |
| 3 | 43 | 33 | 0.60 | 0.89 | 13.14 | 0.12 | 24 | 76 | 18:18 | 29.49 | 29.77 | 52 | 100 |
| 4 | 47 | 32 | 0.00 | 0.89 | 13.14 | 0.00 | 22 | 77 | 18:19 | 29.74 | 29.93 | 51 | 100 |
| 5 | 46 | 33 | 0.00 | 0.89 | 13.14 | 0.00 | 21 | 76 | 18:21 | 29.91 | 30.13 | 48 | 100 |
| 6 | 51 | 30 | 0.00 | 0.89 | 13.14 | 0.00 | 18 | 76 | 18:21 | 30.12 | 30.24 | 54 | 100 |
| 7 | 57 | 36 | 0.17 | 1.06 | 13.31 | 0.12 | 19 | 74 | 18:17 | 30.07 | 30.20 | 49 | 100 |
| 8 | 46 | 43 | 0.71 | 1.77 | 14.02 | 0.28 | 25 | 52 | 18:09 | 29.74 | 30.10 | 41 | 100 |
| 9 | 71 | 43 | 1.58 | 3.35 | 15.60 | 2.28 | 35 | 78 | 18:25 | 29.27 | 29.74 | 79 | 100 |
| 10 | 48 | 26 | 0.00 | 3.35 | 15.60 | 0.00 | 39 | 79 | 18:25 | 29.49 | 30.15 | 39 | 100 |
| 11 | 31 | 22 | 0.00 | 3.35 | 15.60 | 0.00 | 32 | 76 | 18:26 | 30.13 | 30.32 | 46 | 95 |
| 12 | 34 | 18 | 0.00 | 3.35 | 15.60 | 0.00 | 34 | 79 | 18:29 | 30.27 | 30.42 | 73 | 100 |
| 13 | 40 | 20 | 0.00 | 3.35 | 15.60 | 0.00 | 26 | 77 | 18:28 | 30.15 | 30.48 | 75 | 100 |
| 14 | 53 | 31 | 0.00 | 3.35 | 15.60 | 0.00 | 48 | 78 | 18:28 | 29.85 | 30.18 | 45 | 100 |
| 15 | 44 | 30 | 0.00 | 3.35 | 15.60 | 0.00 | 29 | 79 | 18:30 | 30.13 | 30.40 | 52 | 100 |
| 16 | 45 | 30 | 0.00 | 3.35 | 15.60 | 0.00 | 13 | 80 | 18:30 | 30.37 | 30.53 | 44 | 100 |
| 17 | 44 | 26 | 0.00 | 3.35 | 15.60 | 0.00 | 16 | 76 | 18:28 | 30.37 | 30.56 | 45 | 100 |
| 18 | 43 | 35 | 0.88 | 4.23 | 16.48 | 0.24 | 10 | 64 | 18:24 | 30.02 | 30.40 | 50 | 99 |
| 19 | 63 | 42 | 0.78 | 5.01 | 17.26 | 0.40 | 13 | 80 | 18:34 | 29.77 | 30.05 | 40 | 94 |
| 20 | 46 | 40 | 0.84 | 5.85 | 18.10 | 0.64 | 30 | 58 | 18:10 | 29.58 | 29.85 | 54 | 100 |
| 21 | 40 | 33 | 0.78 | 6.63 | 18.88 | 0.48 | 31 | 63 | 18:26 | 29.47 | 29.66 | 58 | 100 |
| 22 | 42 | 32 | 0.07 | 6.70 | 18.95 | 0.04 | 30 | 82 | 18:35 | 29.52 | 29.90 | 41 | 100 |
| 23 | 50 | 31 | 0.00 | 6.70 | 18.95 | 0.00 | 22 | 81 | 18:39 | 29.88 | 30.09 | 48 | 100 |
| 24 | 47 | 28 | 0.00 | 6.70 | 18.95 | 0.00 | 15 | 76 | 18:39 | 30.05 | 30.38 | 57 | 94 |
| 25 | 52 | 28 | 0.00 | 6.70 | 18.95 | 0.00 | 19 | 80 | 18:40 | 30.37 | 30.57 | 37 | 92 |
| 26 | 72 | 42 | 0.00 | 6.70 | 18.95 | 0.00 | 29 | 80 | 18:41 | 30.10 | 30.45 | 40 | 100 |
| 27 | 85 | 59 | 0.00 | 6.70 | 18.95 | 0.00 | 23 | 80 | 18:42 | 30.02 | 30.20 | 61 | 100 |
| 28 | 79 | 62 | 0.00 | 6.70 | 18.95 | 0.00 | 34 | 80 | 18:44 | 29.84 | 30.05 | 58 | 100 |
| 29 | 85 | 63 | 0.00 | 6.70 | 18.95 | 0.00 | 25 | 80 | 18:45 | 29.88 | 30.01 | 52 | 100 |
| 30 | 89 | 54 | 0.00 | 6.70 | 18.95 | 0.00 | 28 | 80 | 18:44 | 29.84 | 30.02 | 47 | 100 |
| 31 | 86 | 64 | 0.00 | 6.70 | 18.95 | 0.00 | 29 | 80 | 18:46 | 29.79 | 29.96 | 42 | 100 |
| Avg. | 54.7 | 37.0 | |||||||||||
| Max. | 89 | 1.58 | 2.28 | 48 | 82 | 30.57 | 79 | 100 | |||||
| Min. | 18 | 10 | 52 | 29.27 | 37 | 92 | |||||||