| Monthly Observation SummaryJanuary 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 | 30 | 16 | 0.00 | 0.00 | 0.00 | 0.00 | 21 | 65 | 17:16 | 30.13 | 30.34 | 46 | 74 |
| 2 | 34 | 18 | 0.00 | 0.00 | 0.00 | 0.00 | 18 | 68 | 17:16 | 30.20 | 30.42 | 43 | 79 |
| 3 | 34 | 24 | 0.00 | 0.00 | 0.00 | 0.00 | 21 | 69 | 17:16 | 29.93 | 30.21 | 44 | 73 |
| 4 | 38 | 23 | 0.00 | 0.00 | 0.00 | 0.00 | 26 | 67 | 17:20 | 29.99 | 30.23 | 35 | 78 |
| 5 | 46 | 28 | 0.00 | 0.00 | 0.00 | 0.00 | 16 | 67 | 17:18 | 30.05 | 30.23 | 22 | 62 |
| 6 | 38 | 23 | 0.67 | 0.67 | 0.67 | 0.36 | 17 | 67 | 17:11 | 29.51 | 30.05 | 54 | 100 |
| 7 | 35 | 26 | 0.15 | 0.82 | 0.82 | 0.04 | 29 | 69 | 17:21 | 29.54 | 29.93 | 72 | 100 |
| 8 | 37 | 24 | 0.00 | 0.82 | 0.82 | 0.00 | 27 | 64 | 17:23 | 29.91 | 30.10 | 48 | 77 |
| 9 | 46 | 29 | 0.01 | 0.83 | 0.83 | 0.04 | 17 | 65 | 17:23 | 29.69 | 29.95 | 60 | 93 |
| 10 | 55 | 41 | 0.00 | 0.83 | 0.83 | 0.00 | 16 | 71 | 17:20 | 29.76 | 29.90 | 53 | 86 |
| 11 | 47 | 37 | 0.44 | 1.27 | 1.27 | 0.28 | 39 | 76 | 17:25 | 29.73 | 30.01 | 51 | 100 |
| 12 | 49 | 30 | 0.00 | 1.27 | 1.27 | 0.00 | 19 | 68 | 17:25 | 29.60 | 30.05 | 37 | 89 |
| 13 | 44 | 35 | 0.00 | 1.27 | 1.27 | 0.00 | 41 | 72 | 17:26 | 29.52 | 30.02 | 36 | 73 |
| 14 | 50 | 29 | 0.00 | 1.27 | 1.27 | 0.00 | 24 | 71 | 17:25 | 29.87 | 30.12 | 32 | 76 |
| 15 | 49 | 34 | 0.00 | 1.27 | 1.27 | 0.00 | 35 | 75 | 17:31 | 29.84 | 30.12 | 43 | 86 |
| 16 | 41 | 31 | 0.00 | 1.27 | 1.27 | 0.00 | 20 | 68 | 17:29 | 30.10 | 30.31 | 50 | 75 |
| 17 | 53 | 32 | 0.00 | 1.27 | 1.27 | 0.00 | 22 | 75 | 17:29 | 29.93 | 30.10 | 34 | 78 |
| 18 | 41 | 28 | 0.00 | 1.27 | 1.27 | 0.00 | 26 | 69 | 17:32 | 30.02 | 30.26 | 31 | 68 |
| 19 | 31 | 25 | 0.42 | 1.69 | 1.69 | 0.04 | 16 | 55 | 17:22 | 29.77 | 30.26 | 64 | 100 |
| 20 | 43 | 24 | 0.00 | 1.69 | 1.69 | 0.00 | 20 | 71 | 17:34 | 29.80 | 30.20 | 41 | 100 |
| 21 | 48 | 26 | 0.01 | 1.70 | 1.70 | 0.04 | 21 | 73 | 17:36 | 29.84 | 30.12 | 57 | 100 |
| 22 | 54 | 32 | 0.00 | 1.70 | 1.70 | 0.00 | 16 | 69 | 17:36 | 30.05 | 30.38 | 33 | 77 |
| 23 | 51 | 41 | 0.04 | 1.74 | 1.74 | 0.04 | 33 | 71 | 17:38 | 29.95 | 30.29 | 51 | 100 |
| 24 | 59 | 42 | 0.24 | 1.98 | 1.98 | 0.16 | 25 | 72 | 17:34 | 29.65 | 29.95 | 75 | 100 |
| 25 | 49 | 34 | 0.00 | 1.98 | 1.98 | 0.00 | 29 | 72 | 17:41 | 29.79 | 30.24 | 34 | 83 |
| 26 | 59 | 28 | 0.00 | 1.98 | 1.98 | 0.00 | 21 | 73 | 17:41 | 30.16 | 30.31 | XX | 78 |
| 27 | 65 | 28 | 0.00 | 1.98 | 1.98 | 0.00 | 13 | 74 | 17:42 | 30.12 | 30.24 | XX | 89 |
| 28 | 68 | 32 | 0.00 | 1.98 | 1.98 | 0.00 | 16 | 76 | 17:44 | 29.99 | 30.15 | XX | 100 |
| 29 | 72 | 47 | 0.00 | 1.98 | 1.98 | 0.00 | 16 | 80 | 17:42 | 29.96 | 30.05 | XX | 69 |
| 30 | 68 | 49 | 0.08 | 2.06 | 2.06 | 0.12 | 17 | 77 | 17:40 | 29.98 | 30.23 | 54 | 100 |
| 31 | 49 | 42 | 0.16 | 2.22 | 2.22 | 0.16 | 16 | 63 | 17:41 | 30.07 | 30.31 | 100 | 100 |
| Avg. | 47.8 | 30.9 | |||||||||||
| Max. | 72 | 0.67 | 0.36 | 41 | 80 | 30.42 | 100 | 100 | |||||
| Min. | 16 | 13 | 55 | 29.51 | 22 | 62 | |||||||