| Monthly Observation SummaryJanuary 2000 | |||||||||||||
| 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 | 26 | 0.00 | 0.00 | 0.00 | 0.00 | 9 | 63 | 17:12 | 30.12 | 30.26 | 65 | 100 |
| 2 | 67 | 40 | 0.00 | 0.00 | 0.00 | 0.00 | 24 | 62 | 17:15 | 29.96 | 30.15 | 58 | 100 |
| 3 | 67 | 55 | 0.00 | 0.00 | 0.00 | 0.00 | 24 | 65 | 17:13 | 29.87 | 30.05 | 67 | 98 |
| 4 | 67 | 44 | 0.66 | 0.66 | 0.66 | 0.84 | 38 | 56 | 17:07 | 29.55 | 29.88 | 63 | 100 |
| 5 | 44 | 27 | 0.00 | 0.66 | 0.66 | 0.00 | 32 | 62 | 17:19 | 29.77 | 30.43 | 44 | 80 |
| 6 | 46 | 22 | 0.00 | 0.66 | 0.66 | 0.00 | 20 | 62 | 17:20 | 30.27 | 30.49 | 46 | 99 |
| 7 | 50 | 29 | 0.00 | 0.66 | 0.66 | 0.00 | 28 | 64 | 17:20 | 30.12 | 30.29 | 32 | 100 |
| 8 | 45 | 28 | 0.00 | 0.66 | 0.66 | 0.00 | 13 | 63 | 17:18 | 30.12 | 30.35 | 39 | 76 |
| 9 | 45 | 37 | 0.00 | 0.66 | 0.66 | 0.00 | 16 | 58 | 17:18 | 29.90 | 30.15 | 56 | 100 |
| 10 | 51 | 41 | 0.68 | 1.34 | 1.34 | 0.48 | 24 | 59 | 17:22 | 29.36 | 29.91 | 45 | 100 |
| 11 | 53 | 38 | 0.02 | 1.36 | 1.36 | 0.12 | 49 | 70 | 17:24 | 29.55 | 29.96 | 32 | 96 |
| 12 | 49 | 33 | 0.00 | 1.36 | 1.36 | 0.00 | 29 | 64 | 17:23 | 29.93 | 30.20 | 24 | 69 |
| 13 | 57 | 26 | 0.00 | 1.36 | 1.36 | 0.00 | 51 | 69 | 17:25 | 29.60 | 30.24 | 31 | 89 |
| 14 | 28 | 19 | 0.00 | 1.36 | 1.36 | 0.00 | 34 | 65 | 17:27 | 30.23 | 30.59 | 42 | 64 |
| 15 | 35 | 18 | 0.00 | 1.36 | 1.36 | 0.00 | 14 | 70 | 17:25 | 30.29 | 30.65 | 35 | 78 |
| 16 | 58 | 27 | 0.00 | 1.36 | 1.36 | 0.00 | 37 | 65 | 17:26 | 29.87 | 30.31 | 32 | 75 |
| 17 | 27 | 14 | 0.00 | 1.36 | 1.36 | 0.00 | 30 | 65 | 17:27 | 30.20 | 30.43 | 22 | 50 |
| 18 | 19 | 9 | 0.00 | 1.36 | 1.36 | 0.00 | 14 | 62 | 17:28 | 29.90 | 30.29 | 32 | 91 |
| 19 | 36 | 16 | 0.00 | 1.36 | 1.36 | 0.00 | 28 | 71 | 17:28 | 29.79 | 29.93 | 46 | 93 |
| 20 | 35 | 20 | 0.36 | 1.72 | 1.72 | 0.04 | 36 | 62 | 17:32 | 29.43 | 29.79 | 55 | 100 |
| 21 | 22 | 12 | 0.00 | 1.72 | 1.72 | 0.00 | 38 | 72 | 17:34 | 29.73 | 30.02 | 44 | 68 |
| 22 | 22 | 8 | 0.00 | 1.72 | 1.72 | 0.00 | 18 | 67 | 17:33 | 29.99 | 30.23 | 44 | 72 |
| 23 | 31 | 19 | 0.00 | 1.72 | 1.72 | 0.00 | 12 | 64 | 17:32 | 30.01 | 30.16 | 67 | 98 |
| 24 | 41 | 25 | 0.00 | 1.72 | 1.72 | 0.00 | 19 | 72 | 17:35 | 29.80 | 30.10 | 56 | 100 |
| 25 | 30 | 22 | 0.74 | 2.46 | 2.46 | 0.04 | 42 | 56 | 17:32 | 29.29 | 29.80 | 65 | 100 |
| 26 | 31 | 19 | 0.00 | 2.46 | 2.46 | 0.00 | 27 | 68 | 17:40 | 29.54 | 29.93 | 50 | 86 |
| 27 | 22 | 13 | 0.00 | 2.46 | 2.46 | 0.00 | 34 | 68 | 17:41 | 29.91 | 30.29 | 38 | 70 |
| 28 | 31 | 12 | 0.00 | 2.46 | 2.46 | 0.00 | 25 | 68 | 17:41 | 30.27 | 30.48 | 32 | 67 |
| 29 | 37 | 15 | 0.00 | 2.46 | 2.46 | 0.00 | 16 | 68 | 17:41 | 30.42 | 30.56 | 26 | 81 |
| 30 | 31 | 14 | 0.64 | 3.10 | 3.10 | 0.04 | 14 | 61 | 17:32 | 29.85 | 30.43 | 55 | 100 |
| 31 | 38 | 22 | 0.00 | 3.10 | 3.10 | 0.00 | 33 | 70 | 17:45 | 29.80 | 29.95 | 42 | 100 |
| Avg. | 40.8 | 24.2 | |||||||||||
| Max. | 67 | 0.74 | 0.84 | 51 | 72 | 30.65 | 67 | 100 | |||||
| Min. | 8 | 9 | 56 | 29.29 | 22 | 50 | |||||||