Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (edt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Temperature (ºF) | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | Pressure | Precipitation (in) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 20 | 12:56 | Calm | 10.00 | Fair | CLR | 69.1 | 43 | 39% | 30.27 | 1026.3 | |||||||
| 20 | 11:56 | Vrbl 5 | 10.00 | Fair | CLR | 64.9 | 43 | 45% | 30.29 | 1027.1 | |||||||
| 20 | 10:56 | Vrbl 3 | 10.00 | Fair | CLR | 63 | 43 | 48% | 30.29 | 1027.3 | |||||||
| 20 | 09:56 | Vrbl 3 | 10.00 | Fair | CLR | 60.1 | 42.1 | 52% | 30.3 | 1027.5 | |||||||
| 20 | 08:56 | Vrbl 3 | 10.00 | Fair | CLR | 52 | 39 | 61% | 30.29 | 1027.2 | |||||||
| 20 | 07:56 | W 6 | 10.00 | Fair | CLR | 43 | 36 | 45 | 39 | 76% | 40 | 30.27 | 1026.7 | ||||
| 20 | 06:56 | W 3 | 10.00 | Fair | CLR | 43 | 35.1 | 74% | 30.26 | 1026.3 | |||||||
| 20 | 05:56 | W 3 | 10.00 | Fair | CLR | 43 | 34 | 71% | 30.25 | 1025.8 | |||||||
| 20 | 04:56 | Calm | 10.00 | Fair | CLR | 39.9 | 37.9 | 93% | 30.24 | 1025.5 | |||||||
| 20 | 03:56 | Calm | 10.00 | Fair | CLR | 39 | 39 | 100% | 30.24 | 1025.4 | |||||||
| 20 | 02:56 | Calm | 10.00 | Fair | CLR | 39.9 | 39.9 | 100% | 30.25 | 1025.8 | |||||||
| 20 | 01:56 | Calm | 10.00 | Fair | CLR | 42.1 | 36 | 51.1 | 42.1 | 79% | 30.25 | 1025.9 | |||||
| 20 | 00:56 | Calm | 10.00 | Fair | CLR | 43 | 36 | 76% | 30.26 | 1026.1 | |||||||
| 19 | 23:56 | Calm | 10.00 | Fair | CLR | 43 | 39.9 | 89% | 30.26 | 1026.3 | |||||||
| 19 | 22:56 | Calm | 10.00 | Fair | CLR | 44.1 | 39 | 83% | 30.27 | 1026.6 | |||||||
| 19 | 21:56 | Calm | 10.00 | Fair | CLR | 45 | 39.9 | 83% | 30.28 | 1027.0 | |||||||
| 19 | 20:56 | Calm | 10.00 | Fair | CLR | 48 | 39 | 71% | 30.29 | 1027.3 | |||||||
| 19 | 19:56 | Calm | 10.00 | Fair | CLR | 48.9 | 41 | 68 | 48.9 | 74% | 30.3 | 1027.9 | |||||
| 19 | 18:56 | Calm | 10.00 | Fair | CLR | 55 | 37 | 51% | 30.31 | 1028.0 | |||||||
| 19 | 17:56 | Calm | 10.00 | Fair | CLR | 63 | 39 | 41% | 30.32 | 1028.3 | |||||||
| 19 | 16:56 | Calm | 10.00 | Fair | CLR | 66 | 39 | 37% | 30.33 | 1028.6 | |||||||
| 19 | 15:56 | Vrbl 3 | 10.00 | Fair | CLR | 66 | 37 | 34% | 30.35 | 1029.2 | |||||||
| 19 | 14:56 | Vrbl 3 | 10.00 | Fair | CLR | 66.9 | 37 | 33% | 30.36 | 1029.5 | |||||||
| 19 | 13:56 | Vrbl 3 | 9.00 | Fair | CLR | 66.9 | 39 | 66.9 | 35.1 | 36% | 30.38 | 1030.2 | |||||
| 19 | 12:56 | Vrbl 3 | 10.00 | Fair | CLR | 66 | 35.1 | 32% | 30.42 | 1031.5 | |||||||
| 19 | 11:56 | NW 8 | 10.00 | Fair | CLR | 64 | 37.9 | 38% | 30.45 | 1032.5 | |||||||
| 19 | 10:56 | Calm | 10.00 | Fair | CLR | 61 | 37.9 | 43% | 30.47 | 1033.4 | |||||||
| 19 | 09:56 | Calm | 10.00 | Fair | CLR | 55.9 | 37.9 | 51% | 30.49 | 1033.8 | |||||||
| 19 | 08:56 | Calm | 10.00 | Fair | CLR | 44.1 | 41 | 89% | 30.48 | 1034.0 | |||||||
| 19 | 07:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 37 | 35.1 | 100% | 30.48 | 1034.0 | |||||
| 19 | 06:56 | Calm | 9.00 | Fair | CLR | 35.1 | 35.1 | 100% | 30.47 | 1033.8 | |||||||
| 19 | 05:56 | Calm | 10.00 | Fair | CLR | 36 | 36 | 100% | 30.48 | 1033.9 | |||||||
| 19 | 04:56 | Calm | 10.00 | Fair | CLR | 36 | 36 | 100% | 30.48 | 1034.0 | |||||||
| 19 | 03:56 | Calm | 10.00 | Fair | CLR | 36 | 36 | 100% | 30.48 | 1033.9 | |||||||
| 19 | 02:56 | Calm | 10.00 | Fair | CLR | 37 | 37 | 100% | 30.5 | 1034.3 | |||||||
| 19 | 01:56 | Calm | 10.00 | Fair | CLR | 37 | 37 | 46 | 37 | 100% | 30.51 | 1034.6 | |||||
| 19 | 00:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37.9 | 100% | 30.52 | 1034.9 | |||||||
| 18 | 23:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37.9 | 100% | 30.53 | 1035.5 | |||||||
| 18 | 22:56 | Calm | 10.00 | Fair | CLR | 39.9 | 39 | 97% | 30.54 | 1035.7 | |||||||
| 18 | 21:56 | Calm | 10.00 | Fair | CLR | 41 | 37.9 | 89% | 30.54 | 1035.9 | |||||||
| 18 | 20:56 | Calm | 10.00 | Fair | CLR | 45 | 36 | 71% | 30.54 | 1036.0 | |||||||
| 18 | 19:56 | Calm | 10.00 | Fair | CLR | 45 | 36 | 63 | 45 | 71% | 30.55 | 1036.3 | |||||
| 18 | 18:56 | Calm | 10.00 | Fair | CLR | 48 | 39 | 71% | 30.54 | 1036.1 | |||||||
| 18 | 17:56 | Calm | 10.00 | Fair | CLR | 57.9 | 35.1 | 42% | 30.54 | 1035.9 | |||||||
| 18 | 16:56 | Vrbl 3 | 10.00 | Fair | CLR | 60.1 | 28.9 | 31% | 30.56 | 1036.3 | |||||||
| 18 | 15:56 | Calm | 10.00 | Fair | CLR | 61 | 27 | 27% | 30.57 | 1036.8 | |||||||
| 18 | 14:56 | Vrbl 3 | 10.00 | Fair | CLR | 61 | 28 | 29% | 30.57 | 1037.0 | |||||||
| 18 | 13:56 | Vrbl 3 | 10.00 | Fair | CLR | 61 | 27 | 61 | 35.1 | 27% | 30.59 | 1037.6 | |||||
| 18 | 12:56 | Vrbl 5 | 10.00 | Fair | CLR | 59 | 26.1 | 28% | 30.61 | 1038.2 | |||||||
| 18 | 11:56 | Calm | 10.00 | Fair | CLR | 57 | 27 | 32% | 30.63 | 1038.9 | |||||||
| 18 | 10:56 | Vrbl 6 | 10.00 | Fair | CLR | 54 | 30 | 40% | 30.63 | 1038.7 | |||||||
| 18 | 09:56 | Vrbl 3 | 10.00 | Fair | CLR | 48.9 | 30.9 | 50% | 30.61 | 1038.4 | |||||||
| 18 | 08:56 | Vrbl 6 | 10.00 | Fair | CLR | 42.1 | 32 | 68% | 39 | 30.6 | 1038.0 | ||||||
| 18 | 07:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 39.9 | 34 | 100% | 30.57 | 1037.2 | |||||
| 18 | 06:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 100% | 30.55 | 1036.3 | |||||||
| 18 | 05:56 | Calm | 10.00 | Fair | CLR | 36 | 33.1 | 89% | 30.52 | 1035.4 | |||||||
| 18 | 04:56 | Calm | 10.00 | Fair | CLR | 36 | 33.1 | 89% | 30.5 | 1034.7 | |||||||
| 18 | 03:56 | Calm | 10.00 | Fair | CLR | 39 | 30.9 | 73% | 30.5 | 1034.4 | |||||||
| 18 | 02:56 | Calm | 10.00 | Fair | CLR | 39 | 30.9 | 73% | 30.49 | 1034.2 | |||||||
| 18 | 01:56 | Calm | 10.00 | Fair | CLR | 39 | 32 | 45 | 37 | 76% | 30.47 | 1033.6 | |||||
| 18 | 00:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37.9 | 100% | 30.47 | 1033.4 | |||||||
| 17 | 23:56 | Calm | 10.00 | Fair | CLR | 37.9 | 35.1 | 89% | 30.46 | 1033.3 | |||||||
| 17 | 22:56 | Calm | 10.00 | Fair | CLR | 41 | 34 | 76% | 30.45 | 1033.0 | |||||||
| 17 | 21:56 | Calm | 10.00 | Fair | CLR | 42.1 | 33.1 | 71% | 30.43 | 1032.2 | |||||||
| 17 | 19:56 | Calm | 10.00 | Fair | CLR | 45 | 33.1 | 57.9 | 45 | 63% | 30.38 | 1030.4 | |||||
| 17 | 18:56 | Calm | 10.00 | Fair | CLR | 48 | 32 | 54% | 30.34 | 1029.1 | |||||||
| 17 | 17:56 | Vrbl 3 | 10.00 | Fair | CLR | 53.1 | 33.1 | 47% | 30.31 | 1027.9 | |||||||
| 17 | 16:56 | Vrbl 3 | 10.00 | Fair | CLR | 55.9 | 35.1 | 46% | 30.29 | 1026.9 | |||||||
| 17 | 15:56 | N 8 G 18 | 10.00 | Fair | CLR | 57 | 35.1 | 44% | 30.27 | 1026.4 | |||||||
| 17 | 14:56 | NW 8 G 21 | 7.00 | Mostly Cloudy | BKN050 | 57 | 35.1 | 44% | 30.27 | 1026.3 | |||||||
| 17 | 13:56 | Vrbl 7 | 10.00 | Mostly Cloudy | BKN045 | 57 | 37 | 57 | 51.1 | 47% | 30.26 | 1026.0 | |||||
| Date | Time (edt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºF) | Pressure | Precipitation (in) | |||||||||||||||