| Monthly Observation SummaryFebruary 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 | 50 | 28 | 0.00 | 0.00 | 5.95 | 0.00 | 11 | 68 | 17:46 | 30.13 | 30.26 | 34 | 88 |
| 2 | 49 | 24 | 0.00 | 0.00 | 5.95 | 0.00 | 17 | 70 | 17:45 | 30.16 | 30.31 | 47 | 100 |
| 3 | 43 | 37 | 0.01 | 0.01 | 5.96 | 0.04 | 17 | 58 | 17:42 | 29.99 | 30.21 | 77 | 96 |
| 4 | 40 | 34 | 1.78 | 1.79 | 7.74 | 0.24 | 34 | 47 | 17:40 | 29.51 | 29.99 | 79 | 100 |
| 5 | 40 | 36 | 0.83 | 2.62 | 8.57 | 0.16 | 23 | 60 | 17:43 | 29.46 | 29.73 | 100 | 100 |
| 6 | 45 | 36 | 0.00 | 2.62 | 8.57 | 0.00 | 16 | 62 | 17:50 | 29.71 | 29.98 | 44 | 100 |
| 7 | 48 | 35 | 0.00 | 2.62 | 8.57 | 0.00 | 16 | 67 | 17:53 | 29.91 | 30.01 | 32 | 100 |
| 8 | 50 | 30 | 0.00 | 2.62 | 8.57 | 0.00 | 17 | 70 | 17:55 | 29.91 | 30.07 | 33 | 94 |
| 9 | 50 | 26 | 0.00 | 2.62 | 8.57 | 0.00 | 9 | 69 | 17:56 | 30.07 | 30.18 | 40 | 100 |
| 10 | 55 | 26 | 0.00 | 2.62 | 8.57 | 0.00 | 13 | 70 | 17:56 | 30.16 | 30.26 | 35 | 100 |
| 11 | 50 | 29 | 0.61 | 3.23 | 9.18 | 0.60 | 19 | 73 | 17:44 | 29.60 | 30.18 | 68 | 100 |
| 12 | 55 | 39 | 0.04 | 3.27 | 9.22 | 0.16 | 39 | 75 | 17:58 | 29.51 | 29.88 | 54 | 100 |
| 13 | 46 | 34 | 0.00 | 3.27 | 9.22 | 0.00 | 29 | 74 | 17:59 | 29.87 | 30.05 | 51 | 73 |
| 14 | 40 | 26 | 0.00 | 3.27 | 9.22 | 0.00 | 23 | 75 | 18:00 | 29.99 | 30.31 | 53 | 86 |
| 15 | 44 | 23 | 0.00 | 3.27 | 9.22 | 0.00 | 13 | 72 | 18:00 | 30.27 | 30.53 | 41 | 88 |
| 16 | 43 | 24 | 0.01 | 3.28 | 9.23 | 0.04 | 20 | 74 | 17:53 | 30.26 | 30.48 | 56 | 100 |
| 17 | 52 | 37 | 1.15 | 4.43 | 10.38 | 1.48 | 38 | 53 | 17:53 | 29.52 | 30.27 | 100 | 100 |
| 18 | 62 | 47 | 0.38 | 4.81 | 10.76 | 0.72 | 16 | 73 | 18:02 | 29.49 | 29.65 | 62 | 100 |
| 19 | 53 | 42 | 0.01 | 4.82 | 10.77 | 0.04 | 24 | 73 | 18:01 | 29.63 | 29.87 | 61 | 100 |
| 20 | 50 | 36 | 0.07 | 4.89 | 10.84 | 0.04 | 19 | 72 | 17:58 | 29.66 | 29.85 | 80 | 100 |
| 21 | 50 | 43 | 0.00 | 4.89 | 10.84 | 0.00 | 31 | 72 | 18:05 | 29.74 | 30.05 | 60 | 81 |
| 22 | 50 | 37 | 0.00 | 4.89 | 10.84 | 0.00 | 20 | 74 | 18:06 | 30.01 | 30.16 | 48 | 83 |
| 23 | 41 | 38 | 0.96 | 5.85 | 11.80 | 0.28 | 27 | 52 | 17:59 | 29.41 | 30.04 | 78 | 100 |
| 24 | 42 | 35 | 0.40 | 6.25 | 12.20 | 0.28 | 39 | 65 | 18:07 | 29.38 | 29.63 | 62 | 100 |
| 25 | 53 | 39 | 0.00 | 6.25 | 12.20 | 0.00 | 45 | 72 | 18:12 | 29.60 | 29.98 | 40 | 79 |
| 26 | 59 | 36 | 0.00 | 6.25 | 12.20 | 0.00 | 17 | 73 | 18:12 | 29.93 | 30.05 | 38 | 86 |
| 27 | 62 | 36 | 0.02 | 6.27 | 12.22 | 0.04 | 16 | 75 | 18:14 | 29.76 | 29.98 | 34 | 81 |
| 28 | 59 | 43 | 0.03 | 6.30 | 12.25 | 0.04 | 14 | 73 | 18:10 | 29.69 | 29.88 | 64 | 100 |
| Avg. | 49.3 | 34.1 | |||||||||||
| Max. | 62 | 1.78 | 1.48 | 45 | 75 | 30.53 | 100 | 100 | |||||
| Min. | 23 | 9 | 47 | 29.38 | 32 | 73 | |||||||