Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (est) | 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. | ||||||||||||||||
| 30 | 14:56 | NW 10 G 17 | 10.00 | Fair | CLR | 19 | -0.9 | 41% | 8 | 30.23 | 1026.2 | ||||||
| 30 | 13:56 | NW 8 | 10.00 | Fair | CLR | 19.9 | -0 | 41% | 11 | 30.25 | 1026.9 | ||||||
| 30 | 12:56 | NW 14 | 10.00 | Fair | CLR | 21 | -0 | 21.9 | 1.9 | 39% | 9 | 30.26 | 1027.4 | ||||
| 30 | 11:56 | NW 10 G 23 | 10.00 | Fair | CLR | 21.9 | 1 | 40% | 12 | 30.28 | 1028.0 | ||||||
| 30 | 10:56 | NW 9 | 10.00 | Fair | CLR | 19.9 | -0 | 41% | 10 | 30.31 | 1028.8 | ||||||
| 30 | 09:56 | NW 8 | 10.00 | Fair | CLR | 16 | -0 | 49% | 6 | 30.31 | 1028.9 | ||||||
| 30 | 08:56 | NW 12 | 10.00 | Fair | CLR | 10.9 | 1.9 | 67% | -2 | 30.3 | 1028.6 | ||||||
| 30 | 07:56 | NW 5 | 10.00 | Fair | CLR | 6.1 | -2 | 69% | -2 | 30.28 | 1028.1 | ||||||
| 30 | 06:56 | NW 6 | 10.00 | Fair | CLR | 1.9 | -6 | 9 | -0 | 69% | -8 | 30.26 | 1027.6 | ||||
| 30 | 05:56 | NW 3 | 10.00 | Fair | CLR | 3 | -4 | 72% | 30.26 | 1027.3 | |||||||
| 30 | 04:56 | NW 3 | 10.00 | Fair | CLR | 1.9 | -7.1 | 65% | 30.26 | 1027.3 | |||||||
| 30 | 03:56 | NW 3 | 10.00 | Fair | CLR | 5 | -5.1 | 63% | 30.25 | 1027.1 | |||||||
| 30 | 02:56 | NW 5 | 10.00 | Fair | CLR | 8.1 | -0.9 | 66% | 0 | 30.24 | 1026.8 | ||||||
| 30 | 01:56 | W 8 | 10.00 | Fair | CLR | 9 | -0 | 66% | -2 | 30.24 | 1026.5 | ||||||
| 30 | 00:56 | NW 5 | 10.00 | Fair | CLR | 7 | -2.9 | 16 | 6.1 | 63% | -1 | 30.23 | 1026.4 | ||||
| 29 | 23:56 | Calm | 10.00 | Fair | CLR | 8.1 | -2 | 63% | 30.24 | 1026.7 | |||||||
| 29 | 22:56 | NW 6 | 10.00 | Fair | CLR | 10.9 | -0.9 | 58% | 2 | 30.24 | 1026.6 | ||||||
| 29 | 21:56 | NW 6 | 10.00 | Fair | CLR | 12.9 | -0 | 56% | 5 | 30.24 | 1026.6 | ||||||
| 29 | 20:56 | NW 9 | 10.00 | Fair | CLR | 14 | 1 | 56% | 3 | 30.25 | 1026.8 | ||||||
| 29 | 19:56 | NW 7 | 10.00 | Fair | CLR | 15.1 | 1.9 | 56% | 6 | 30.24 | 1026.6 | ||||||
| 29 | 18:56 | W 5 | 10.00 | Fair | CLR | 16 | 1.9 | 24.1 | 16 | 54% | 10 | 30.23 | 1026.2 | ||||
| 29 | 17:56 | W 8 | 10.00 | Fair | CLR | 18 | 1.9 | 49% | 9 | 30.21 | 1025.6 | ||||||
| 29 | 16:56 | W 9 | 10.00 | Partly Cloudy | SCT050 | 19.9 | 3 | 48% | 10 | 30.2 | 1025.3 | ||||||
| 29 | 15:56 | NW 13 G 21 | 10.00 | Mostly Cloudy | BKN048 | 21 | 3.9 | 47% | 10 | 30.19 | 1024.9 | ||||||
| 29 | 14:56 | W 9 | 10.00 | Overcast | OVC046 | 21 | 3 | 45% | 11 | 30.2 | 1025.1 | ||||||
| 29 | 13:56 | NW 10 | 10.00 | Mostly Cloudy | BKN046 | 23 | 5 | 46% | 13 | 30.2 | 1025.0 | ||||||
| 29 | 12:56 | W 21 G 26 | 10.00 | Partly Cloudy and Breezy | SCT044 | 21.9 | 3 | 23 | 6.1 | 44% | 7 | 30.2 | 1025.1 | ||||
| 29 | 11:56 | NW 10 G 18 | 10.00 | Partly Cloudy | SCT044 | 21.9 | 3 | 44% | 12 | 30.22 | 1025.9 | ||||||
| 29 | 10:56 | W 12 | 10.00 | Fair | CLR | 21 | 1.9 | 43% | 10 | 30.23 | 1026.2 | ||||||
| 29 | 09:56 | Vrbl 7 | 10.00 | Fair | CLR | 19.9 | 1.9 | 45% | 12 | 30.24 | 1026.5 | ||||||
| 29 | 08:56 | W 6 | 10.00 | Fair | CLR | 16 | 1.9 | 54% | 8 | 30.24 | 1026.4 | ||||||
| 29 | 06:56 | Calm | 10.00 | Fair | CLR | 8.1 | -2.9 | 10.9 | 6.1 | 60% | 30.2 | 1025.4 | |||||
| 29 | 05:56 | NW 7 | 10.00 | Fair | CLR | 9 | -2 | 61% | -1 | 30.18 | 1024.7 | ||||||
| 29 | 04:56 | NW 12 G 17 | 10.00 | Fair | CLR | 10.9 | -0.9 | 58% | -2 | 30.16 | 1023.8 | ||||||
| 29 | 03:56 | NW 7 | 10.00 | Fair | CLR | 10 | -0 | 63% | 0 | 30.15 | 1023.4 | ||||||
| 29 | 02:56 | NW 5 | 10.00 | Fair | CLR | 10 | -0 | 63% | 3 | 30.14 | 1023.1 | ||||||
| 29 | 01:56 | W 6 | 10.00 | Fair | CLR | 7 | -4 | 60% | -2 | 30.12 | 1022.4 | ||||||
| 29 | 00:56 | Calm | 10.00 | Fair | CLR | 7 | -0.9 | 16 | 7 | 70% | 30.1 | 1021.8 | |||||
| 28 | 23:56 | Calm | 10.00 | Fair | CLR | 9 | -2 | 61% | 30.1 | 1021.7 | |||||||
| 28 | 22:56 | NW 5 | 10.00 | A Few Clouds | FEW047 | 10.9 | -0.9 | 58% | 4 | 30.1 | 1021.8 | ||||||
| 28 | 21:56 | Calm | 10.00 | Fair | CLR | 14 | 1.9 | 58% | 30.1 | 1021.7 | |||||||
| 28 | 20:56 | NW 6 | 10.00 | Fair | CLR | 16 | 3.9 | 59% | 8 | 30.09 | 1021.2 | ||||||
| 28 | 19:56 | Calm | 10.00 | Mostly Cloudy | BKN050 | 10.9 | -0 | 61% | 30.08 | 1021.5 | |||||||
| 28 | 18:56 | Calm | 10.00 | Fair | CLR | 12 | -0.9 | 24.1 | 12 | 56% | 30.08 | 1021.3 | |||||
| 28 | 17:56 | Calm | 10.00 | Fair | CLR | 16 | -0 | 49% | 30.07 | 1020.7 | |||||||
| 28 | 16:56 | Calm | 10.00 | Fair | CLR | 21 | 3.9 | 47% | 30.05 | 1020.1 | |||||||
| 28 | 15:56 | W 7 | 10.00 | Fair | CLR | 21.9 | 6.1 | 50% | 14 | 30.05 | 1020.0 | ||||||
| 28 | 14:56 | Calm | 10.00 | Fair | CLR | 23 | 5 | 46% | 30.07 | 1020.6 | |||||||
| 28 | 13:56 | W 8 | 10.00 | A Few Clouds | FEW043 | 23 | 6.1 | 48% | 15 | 30.09 | 1021.2 | ||||||
| 28 | 12:56 | W 10 | 10.00 | Fair | CLR | 21.9 | 5 | 27 | 8.1 | 48% | 12 | 30.13 | 1022.6 | ||||
| 28 | 10:56 | NW 10 | 10.00 | Fair | CLR | 23 | 3.9 | 44% | 13 | 30.2 | 1025.2 | ||||||
| 28 | 09:56 | NW 6 | 10.00 | Fair | CLR | 21 | 3 | 45% | 14 | 30.22 | 1025.9 | ||||||
| 28 | 08:56 | Vrbl 3 | 10.00 | Fair | CLR | 19 | 5 | 54% | 30.24 | 1026.6 | |||||||
| 28 | 07:56 | Calm | 10.00 | Fair | CLR | 9 | -2 | 61% | 30.24 | 1026.7 | |||||||
| 28 | 06:56 | Calm | 10.00 | Fair | CLR | 10 | -2 | 17.1 | 10 | 58% | 30.23 | 1026.2 | |||||
| 28 | 05:56 | NW 3 | 10.00 | Fair | CLR | 10.9 | -2 | 56% | 30.23 | 1026.1 | |||||||
| 28 | 04:56 | W 8 | 10.00 | Fair | CLR | 12 | -2 | 53% | 1 | 30.23 | 1026.1 | ||||||
| 28 | 03:56 | NW 7 | 10.00 | Fair | CLR | 14 | -0.9 | 51% | 5 | 30.23 | 1026.0 | ||||||
| 28 | 02:56 | NW 18 G 24 | 10.00 | Fair | CLR | 15.1 | -0 | 51% | -1 | 30.2 | 1025.0 | ||||||
| 28 | 01:56 | NW 10 | 10.00 | Fair | CLR | 15.1 | 1 | 53% | 3 | 30.19 | 1024.9 | ||||||
| 28 | 00:56 | NW 15 | 10.00 | Fair | CLR | 17.1 | 3 | 23 | 17.1 | 54% | 3 | 30.16 | 1023.5 | ||||
| 27 | 23:56 | NW 15 G 20 | 10.00 | Mostly Cloudy | BKN060 | 18 | 3 | 52% | 5 | 30.15 | 1023.4 | ||||||
| 27 | 22:56 | Vrbl 5 | 10.00 | Partly Cloudy | FEW050 SCT060 | 19 | 5 | 54% | 13 | 30.14 | 1023.1 | ||||||
| 27 | 21:56 | NW 8 G 24 | 10.00 | Overcast | BKN047 OVC060 | 21 | 7 | 54% | 12 | 30.13 | 1022.6 | ||||||
| 27 | 20:56 | NW 8 | 10.00 | Overcast | SCT048 OVC060 | 21.9 | 8.1 | 55% | 13 | 30.11 | 1022.1 | ||||||
| 27 | 19:56 | NW 12 G 23 | 10.00 | Fair | CLR | 21.9 | 7 | 52% | 11 | 30.07 | 1020.8 | ||||||
| 27 | 18:56 | NW 5 | 10.00 | Fair | CLR | 23 | 5 | 28.9 | 21.9 | 46% | 18 | 30.04 | 1019.8 | ||||
| 27 | 17:56 | NW 5 | 10.00 | Overcast | OVC060 | 24.1 | 5 | 44% | 19 | 30 | 1018.2 | ||||||
| 27 | 16:56 | W 6 | 10.00 | Overcast | OVC070 | 26.1 | 5 | 40% | 20 | 29.99 | 1017.7 | ||||||
| 27 | 15:56 | W 7 | 10.00 | Overcast | BKN065 OVC110 | 27 | 3.9 | 37% | 20 | 29.98 | 1017.6 | ||||||
| Date | Time (est) | 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) | |||||||||||||||