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. | ||||||||||||||||
| 17 | 02:56 | SE 6 | 10.00 | Mostly Cloudy | BKN055 | 70 | 69.1 | 97% | 30.28 | 1026.1 | |||||||
| 17 | 01:56 | Calm | 10.00 | Fair | CLR | 69.1 | 69.1 | 78.1 | 69.1 | 100% | 30.29 | 1026.5 | |||||
| 17 | 00:56 | Calm | 10.00 | Fair | CLR | 69.1 | 69.1 | 100% | 30.3 | 1027.0 | |||||||
| 16 | 23:56 | SE 5 | 10.00 | Fair | CLR | 72 | 66.9 | 84% | 30.31 | 1027.2 | |||||||
| 16 | 22:56 | SE 5 | 10.00 | Fair | CLR | 72 | 66.9 | 84% | 30.32 | 1027.6 | |||||||
| 16 | 21:56 | SE 5 | 10.00 | Fair | CLR | 75 | 66 | 74% | 76 | 30.32 | 1027.8 | ||||||
| 16 | 20:56 | S 5 | 10.00 | Fair | CLR | 75.9 | 64.9 | 69% | 78 | 30.31 | 1027.6 | ||||||
| 16 | 19:56 | S 6 | 10.00 | Fair | CLR | 78.1 | 64.9 | 86 | 78.1 | 64% | 80 | 30.3 | 1027.1 | ||||
| 16 | 18:56 | S 9 | 10.00 | Fair | CLR | 80.1 | 64.9 | 60% | 82 | 30.3 | 1027.2 | ||||||
| 16 | 17:56 | Vrbl 5 | 10.00 | Fair | CLR | 84.9 | 66 | 53% | 87 | 30.31 | 1027.3 | ||||||
| 16 | 16:56 | Vrbl 5 | 10.00 | Fair | CLR | 84.9 | 64.9 | 51% | 87 | 30.32 | 1027.7 | ||||||
| 16 | 15:56 | SE 8 | 10.00 | Fair | CLR | 84 | 64.9 | 53% | 86 | 30.32 | 1027.9 | ||||||
| 16 | 14:56 | Vrbl 3 | 10.00 | Fair | CLR | 86 | 64.9 | 49% | 88 | 30.34 | 1028.4 | ||||||
| 16 | 13:56 | Calm | 10.00 | Fair | CLR | 82.9 | 63 | 84 | 63 | 51% | 84 | 30.36 | 1029.1 | ||||
| 16 | 12:56 | SW 6 | 10.00 | Fair | CLR | 81 | 63 | 54% | 82 | 30.38 | 1029.8 | ||||||
| 16 | 11:56 | Vrbl 5 | 10.00 | Fair | CLR | 80.1 | 63 | 56% | 81 | 30.39 | 1030.3 | ||||||
| 16 | 10:56 | S 6 | 10.00 | Fair | CLR | 77 | 62.1 | 60% | 79 | 30.4 | 1030.6 | ||||||
| 16 | 09:56 | SW 6 | 9.00 | Fair | CLR | 72 | 61 | 68% | 30.4 | 1030.6 | |||||||
| 16 | 08:56 | SW 7 | 9.00 | Fair | CLR | 68 | 60.1 | 76% | 30.39 | 1030.3 | |||||||
| 16 | 07:56 | S 3 | 10.00 | Fair | CLR | 63 | 61 | 64.9 | 57.9 | 93% | 30.38 | 1030.0 | |||||
| 16 | 06:56 | SE 3 | 10.00 | Fair | CLR | 59 | 59 | 100% | 30.37 | 1029.5 | |||||||
| 16 | 05:56 | SE 3 | 10.00 | Fair | CLR | 60.1 | 60.1 | 100% | 30.36 | 1029.0 | |||||||
| 16 | 04:56 | Calm | 10.00 | Fair | CLR | 59 | 59 | 100% | 30.35 | 1028.7 | |||||||
| 16 | 03:56 | Calm | 10.00 | Fair | CLR | 57.9 | 57.9 | 100% | 30.34 | 1028.6 | |||||||
| 16 | 02:56 | Calm | 10.00 | Fair | CLR | 59 | 59 | 100% | 30.34 | 1028.4 | |||||||
| 16 | 01:56 | S 3 | 10.00 | Fair | CLR | 64 | 55.9 | 69.1 | 61 | 75% | 30.34 | 1028.4 | |||||
| 16 | 00:56 | SE 6 | 10.00 | Fair | CLR | 64 | 55.9 | 75% | 30.34 | 1028.4 | |||||||
| 15 | 23:56 | SE 6 | 10.00 | Fair | CLR | 63 | 57 | 81% | 30.36 | 1029.0 | |||||||
| 15 | 22:56 | SE 3 | 10.00 | Fair | CLR | 62.1 | 55.9 | 80% | 30.36 | 1029.2 | |||||||
| 15 | 21:56 | SE 3 | 10.00 | Fair | CLR | 62.1 | 55 | 78% | 30.36 | 1029.4 | |||||||
| 15 | 20:56 | Calm | 10.00 | Fair | CLR | 64 | 54 | 70% | 30.36 | 1029.3 | |||||||
| 15 | 19:56 | Calm | 10.00 | Fair | CLR | 69.1 | 53.1 | 79 | 69.1 | 57% | 30.34 | 1028.6 | |||||
| 15 | 18:56 | S 5 | 10.00 | Fair | CLR | 75 | 53.1 | 46% | 78 | 30.34 | 1028.5 | ||||||
| 15 | 17:56 | SE 8 | 10.00 | Fair | CLR | 78.1 | 52 | 40% | 79 | 30.34 | 1028.6 | ||||||
| 15 | 16:56 | SE 7 | 10.00 | Fair | CLR | 77 | 53.1 | 43% | 78 | 30.34 | 1028.6 | ||||||
| 15 | 15:56 | SW 5 | 10.00 | Fair | CLR | 79 | 52 | 39% | 79 | 30.34 | 1028.6 | ||||||
| 15 | 14:56 | Calm | 10.00 | Fair | CLR | 78.1 | 53.1 | 42% | 79 | 30.36 | 1029.0 | ||||||
| 15 | 13:56 | Vrbl 7 | 10.00 | Fair | CLR | 75.9 | 51.1 | 75.9 | 54 | 42% | 78 | 30.37 | 1029.7 | ||||
| 15 | 12:56 | SE 5 | 10.00 | Fair | CLR | 73 | 50 | 44% | 30.39 | 1030.2 | |||||||
| 15 | 11:56 | Calm | 10.00 | Fair | CLR | 73 | 48.9 | 43% | 30.4 | 1030.5 | |||||||
| 15 | 10:56 | Vrbl 6 | 10.00 | Fair | CLR | 71.1 | 50 | 47% | 30.41 | 1030.8 | |||||||
| 15 | 09:56 | E 3 | 10.00 | Fair | CLR | 66 | 53.1 | 63% | 30.4 | 1030.7 | |||||||
| 15 | 08:56 | Vrbl 3 | 10.00 | Fair | CLR | 61 | 48.9 | 65% | 30.4 | 1030.6 | |||||||
| 15 | 07:56 | Calm | 10.00 | Fair | CLR | 54 | 48.9 | 57 | 48.9 | 83% | 30.38 | 1029.9 | |||||
| 15 | 06:56 | Calm | 10.00 | Fair | CLR | 50 | 50 | 100% | 30.37 | 1029.6 | |||||||
| 15 | 05:56 | Calm | 10.00 | Fair | CLR | 50 | 50 | 100% | 30.35 | 1028.8 | |||||||
| 15 | 04:56 | Calm | 10.00 | Fair | CLR | 51.1 | 50 | 96% | 30.32 | 1028.1 | |||||||
| 15 | 03:56 | Calm | 10.00 | Fair | CLR | 55 | 48.9 | 80% | 30.31 | 1027.5 | |||||||
| 15 | 02:56 | Vrbl 3 | 10.00 | Fair | CLR | 55.9 | 50 | 81% | 30.3 | 1027.3 | |||||||
| 15 | 01:56 | Calm | 10.00 | Fair | CLR | 55.9 | 52 | 64 | 55 | 87% | 30.3 | 1027.3 | |||||
| 15 | 00:56 | Calm | 10.00 | Fair | CLR | 57.9 | 48.9 | 72% | 30.29 | 1026.8 | |||||||
| 14 | 23:56 | Calm | 10.00 | Fair | CLR | 59 | 50 | 72% | 30.28 | 1026.6 | |||||||
| 14 | 22:56 | Calm | 10.00 | Fair | CLR | 60.1 | 50 | 70% | 30.28 | 1026.3 | |||||||
| 14 | 21:56 | Calm | 10.00 | Fair | CLR | 61 | 51.1 | 70% | 30.26 | 1025.7 | |||||||
| 14 | 20:56 | Vrbl 3 | 10.00 | Fair | CLR | 63 | 52 | 68% | 30.24 | 1025.3 | |||||||
| 14 | 19:56 | Calm | 10.00 | Fair | CLR | 64 | 53.1 | 78.1 | 64 | 68% | 30.22 | 1024.4 | |||||
| 14 | 18:56 | Calm | 10.00 | Fair | CLR | 71.1 | 51.1 | 49% | 30.2 | 1023.7 | |||||||
| 14 | 17:56 | NW 7 | 10.00 | Fair | CLR | 75 | 51.1 | 43% | 78 | 30.18 | 1022.9 | ||||||
| 14 | 16:56 | NW 6 G 17 | 10.00 | Fair | CLR | 75 | 50 | 42% | 78 | 30.16 | 1022.4 | ||||||
| 14 | 15:56 | W 12 G 16 | 10.00 | Fair | CLR | 75.9 | 51.1 | 42% | 78 | 30.16 | 1022.4 | ||||||
| 14 | 14:56 | NW 9 | 10.00 | Fair | CLR | 77 | 52 | 42% | 78 | 30.15 | 1021.9 | ||||||
| 14 | 13:56 | Vrbl 6 | 10.00 | Mostly Cloudy | BKN055 | 75.9 | 54 | 78.1 | 68 | 47% | 78 | 30.15 | 1022.1 | ||||
| 14 | 12:56 | NW 7 | 10.00 | Mostly Cloudy | BKN049 | 75 | 55.9 | 52% | 78 | 30.16 | 1022.1 | ||||||
| 14 | 11:56 | Vrbl 3 G 16 | 10.00 | Mostly Cloudy | BKN042 | 75 | 59 | 58% | 77 | 30.16 | 1022.2 | ||||||
| 14 | 10:56 | Vrbl 5 | 10.00 | Partly Cloudy | SCT040 | 75 | 59 | 58% | 77 | 30.15 | 1022.0 | ||||||
| 14 | 09:56 | Vrbl 5 | 10.00 | Fair | CLR | 73 | 60.1 | 64% | 30.13 | 1021.4 | |||||||
| 14 | 08:56 | Calm | 10.00 | Fair | CLR | 71.1 | 63 | 76% | 30.11 | 1020.4 | |||||||
| 14 | 07:56 | Calm | 10.00 | A Few Clouds | FEW055 | 68 | 68 | 73 | 66.9 | 100% | 30.08 | 1019.6 | |||||
| 14 | 06:56 | Calm | 10.00 | Fair | CLR | 68 | 68 | 100% | 30.04 | 1018.2 | |||||||
| 14 | 05:56 | Calm | 10.00 | Partly Cloudy | SCT055 | 69.1 | 69.1 | 100% | 30.01 | 1017.2 | |||||||
| 14 | 04:56 | Vrbl 7 | 10.00 | Mostly Cloudy | BKN060 | 72 | 71.1 | 97% | 29.98 | 1016.0 | |||||||
| 14 | 03:56 | Vrbl 3 | 10.00 | Fair | CLR | 72 | 72 | 100% | 29.96 | 1015.4 | |||||||
| 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) | |||||||||||||||