Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (edt) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Temperature (ºC) | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | Pressure | Precipitation (cm) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 13 | 17:56 | Calm | 16.09 | Overcast | OVC070 | 28.3 | 21.1 | 65% | 31 | 76.07 | 1015.0 | ||||||
| 13 | 16:56 | Calm | 16.09 | Overcast | OVC060 | 28.9 | 21.7 | 65% | 32 | 76.07 | 1015.0 | ||||||
| 13 | 15:56 | W 13 | 16.09 | Partly Cloudy | SCT045 SCT055 | 30.6 | 21.1 | 57% | 33 | 76.07 | 1015.0 | ||||||
| 13 | 14:56 | Vrbl 6 | 16.09 | Mostly Cloudy | BKN044 | 30 | 21.1 | 59% | 33 | 76.07 | 1015.0 | ||||||
| 13 | 13:56 | W 17 | 16.09 | Fair | CLR | 29.4 | 21.1 | 30 | 23.3 | 61% | 32 | 76.1 | 1015.1 | ||||
| 13 | 12:56 | NW 11 | 16.09 | Fair | CLR | 28.3 | 20.6 | 63% | 30 | 76.1 | 1015.4 | ||||||
| 13 | 11:56 | W 15 | 16.09 | Fair | CLR | 27.8 | 21.1 | 67% | 30 | 76.12 | 1015.6 | ||||||
| 13 | 10:56 | NW 15 | 16.09 | Fair | CLR | 27.2 | 20.6 | 67% | 29 | 76.12 | 1015.5 | ||||||
| 13 | 09:56 | NW 13 | 16.09 | Fair | CLR | 26.1 | 20 | 69% | 27 | 76.07 | 1014.9 | ||||||
| 13 | 08:56 | Vrbl 9 | 16.09 | Fair | CLR | 24.4 | 19.4 | 74% | 25 | 76.07 | 1014.9 | ||||||
| 13 | 07:56 | NW 9 | 16.09 | Fair | CLR | 23.3 | 18.9 | 23.3 | 20.6 | 76% | 76.05 | 1014.6 | |||||
| 13 | 05:56 | W 9 | 16.09 | Fair | CLR | 21.1 | 20 | 93% | 75.95 | 1013.5 | |||||||
| 13 | 04:56 | W 7 | 16.09 | Fair | CLR | 21.7 | 20.6 | 94% | 75.95 | 1013.1 | |||||||
| 13 | 03:56 | NW 11 | 16.09 | Partly Cloudy | SCT120 | 22.2 | 21.1 | 94% | 75.97 | 1013.5 | |||||||
| 13 | 02:56 | NW 6 | 16.09 | A Few Clouds | FEW110 | 22.2 | 22.2 | 100% | 75.92 | 1012.9 | |||||||
| 13 | 01:56 | W 6 | 16.09 | A Few Clouds | FEW120 | 22.8 | 21.7 | 25.6 | 22.8 | 94% | 75.92 | 1013.0 | |||||
| 13 | 00:56 | NW 7 | 16.09 | Fair | CLR | 23.3 | 21.7 | 91% | 75.95 | 1013.2 | |||||||
| 12 | 23:56 | W 6 | 16.09 | Partly Cloudy | SCT060 | 24.4 | 21.1 | 82% | 25 | 75.95 | 1013.3 | ||||||
| 12 | 22:56 | SW 6 | 16.09 | Fair | CLR | 25 | 21.1 | 79% | 26 | 75.95 | 1013.1 | ||||||
| 12 | 21:56 | Calm | 16.09 | A Few Clouds | FEW046 | 25 | 20.6 | 77% | 26 | 75.92 | 1012.8 | ||||||
| 12 | 20:56 | Calm | 16.09 | Fair | CLR | 24.4 | 21.1 | 82% | 25 | 75.9 | 1012.6 | ||||||
| 12 | 19:56 | Calm | 16.09 | Partly Cloudy | SCT050 | 25.6 | 20.6 | 31.1 | 25.6 | 74% | 27 | 75.87 | 1012.3 | ||||
| 12 | 18:56 | W 9 | 16.09 | Fair | CLR | 27.2 | 20.6 | 67% | 29 | 75.87 | 1012.4 | ||||||
| 12 | 17:56 | W 6 | 16.09 | A Few Clouds | FEW041 | 28.9 | 20.6 | 61% | 31 | 75.87 | 1012.3 | ||||||
| 12 | 16:56 | W 9 | 16.09 | Mostly Cloudy | BKN049 | 29.4 | 20.6 | 59% | 32 | 75.9 | 1012.5 | ||||||
| 12 | 15:56 | W 11 | 16.09 | Overcast | OVC040 | 29.4 | 21.1 | 61% | 32 | 75.92 | 1012.8 | ||||||
| 12 | 14:56 | Calm | 16.09 | Overcast | OVC046 | 28.9 | 19.4 | 57% | 30 | 75.95 | 1013.1 | ||||||
| 12 | 13:56 | Vrbl 6 | 16.09 | Fair | CLR | 30 | 18.9 | 30 | 21.7 | 51% | 31 | 75.97 | 1013.4 | ||||
| 12 | 12:56 | Calm | 16.09 | Fair | CLR | 28.9 | 17.8 | 51% | 30 | 76.02 | 1014.3 | ||||||
| 12 | 11:56 | Calm | 16.09 | Mostly Cloudy | BKN048 | 26.7 | 18.9 | 62% | 28 | 76.05 | 1014.8 | ||||||
| 12 | 10:56 | Calm | 16.09 | Fair | CLR | 26.1 | 18.9 | 65% | 27 | 76.05 | 1014.6 | ||||||
| 12 | 09:56 | Calm | 16.09 | Overcast | OVC042 | 25.6 | 20.6 | 74% | 27 | 76.05 | 1014.7 | ||||||
| 12 | 08:56 | NW 6 | 16.09 | A Few Clouds | FEW044 | 23.3 | 20.6 | 85% | 76.02 | 1014.6 | |||||||
| 12 | 07:56 | NW 6 | 16.09 | Overcast | OVC120 | 21.7 | 20.6 | 22.2 | 20.6 | 94% | 76 | 1014.2 | |||||
| 12 | 06:56 | NW 6 | 16.09 | Overcast | OVC120 | 20.6 | 20.6 | 100% | 75.97 | 1013.8 | |||||||
| 12 | 04:56 | NW 7 | 16.09 | Overcast | OVC110 | 21.1 | 20 | 93% | 75.92 | 1012.9 | |||||||
| 12 | 03:56 | Calm | 16.09 | Overcast | OVC120 | 21.7 | 18.9 | 84% | 75.9 | 1012.6 | |||||||
| 12 | 02:56 | NW 7 | 16.09 | Partly Cloudy | SCT110 | 22.2 | 18.9 | 82% | 75.95 | 1013.1 | |||||||
| 12 | 01:56 | NW 9 | 16.09 | Fair | CLR | 21.7 | 19.4 | 25.6 | 21.1 | 87% | 75.95 | 1013.2 | |||||
| 12 | 00:56 | NW 6 | 16.09 | Fair | CLR | 21.7 | 20 | 90% | 75.97 | 1013.6 | |||||||
| 11 | 23:56 | NW 7 | 16.09 | Fair | CLR | 21.7 | 20 | 90% | 75.97 | 1013.5 | |||||||
| 11 | 22:56 | W 7 | 16.09 | Fair | CLR | 22.2 | 19.4 | 84% | 76.05 | 1014.7 | |||||||
| 11 | 21:56 | W 11 | 16.09 | Overcast | BKN070 OVC090 | 23.9 | 19.4 | 76% | 24 | 76.05 | 1014.8 | ||||||
| 11 | 20:56 | W 7 | 16.09 | A Few Clouds | FEW090 | 23.3 | 18.9 | 76% | 75.95 | 1013.5 | |||||||
| 11 | 19:56 | NW 11 | 16.09 | Mostly Cloudy | BKN075 | 25 | 18.3 | 31.1 | 25 | 66% | 26 | 75.97 | 1013.8 | ||||
| 11 | 18:56 | NW 9 | 16.09 | Fair | CLR | 27.2 | 18.3 | 58% | 28 | 75.97 | 1013.6 | ||||||
| 11 | 17:56 | NW 22 G 30 | 16.09 | Fair | CLR | 27.8 | 18.3 | 56% | 29 | 76 | 1013.9 | ||||||
| 11 | 16:56 | W 22 | 16.09 | Fair | CLR | 30 | 20 | 55% | 32 | 76 | 1013.8 | ||||||
| 11 | 15:56 | W 9 | 16.09 | Mostly Cloudy | BKN039 | 30 | 22.2 | 63% | 33 | 76.02 | 1014.1 | ||||||
| 11 | 14:56 | W 9 | 16.09 | A Few Clouds | FEW039 | 28.9 | 21.7 | 65% | 32 | 76.02 | 1014.3 | ||||||
| 11 | 13:56 | Calm | 16.09 | Fair | CLR | 28.9 | 21.1 | 28.9 | 20.6 | 63% | 31 | 76.07 | 1015.1 | ||||
| 11 | 12:56 | NW 13 | 16.09 | Fair | CLR | 27.2 | 21.1 | 69% | 29 | 76.12 | 1015.5 | ||||||
| 11 | 11:56 | NW 11 | 16.09 | Fair | CLR | 26.7 | 21.1 | 71% | 28 | 76.2 | 1016.6 | ||||||
| 11 | 09:56 | W 13 | 16.09 | Fair | CLR | 23.9 | 21.1 | 84% | 24 | 76.1 | 1015.5 | ||||||
| 11 | 08:56 | W 13 | 16.09 | Fair | CLR | 21.7 | 21.1 | 96% | 76.07 | 1015.1 | |||||||
| 11 | 07:56 | Vrbl 7 | 16.09 | Fair | CLR | 21 | 0 | 21.1 | 20 | 0% | 75.97 | 1014.0 | 0.23 | ||||
| 11 | 06:56 | NW 7 | 9.66 | Light Rain Fog/Mist | FEW070 BKN100 BKN110 | 20 | 20 | 100% | 76.12 | 1016.1 | 0.13 | ||||||
| 11 | 05:56 | W 15 | 16.09 | Light Rain | CLR | 21.1 | 21.1 | 100% | 76.28 | 1018.0 | 0.08 | ||||||
| 11 | 04:56 | Calm | 16.09 | Light Rain | FEW070 SCT100 | 21 | 0 | 0% | 76.15 | 1016.3 | 0.03 | 0.03 | |||||
| 11 | 03:56 | Calm | 16.09 | Mostly Cloudy | SCT043 SCT050 BKN065 | 21 | 0 | 0% | 76.12 | 1015.5 | |||||||
| 11 | 02:56 | Calm | 12.87 | Fair | CLR | 20 | 0 | 0% | 76.15 | 1016.1 | |||||||
| 11 | 01:56 | Calm | 9.66 | Fair with Haze | CLR | 20 | 0 | 22.2 | 20 | 0% | 76.23 | 1017.0 | |||||
| 11 | 00:56 | Calm | 16.09 | A Few Clouds | FEW050 | 21 | 0 | 0% | 76.23 | 1017.2 | |||||||
| 10 | 23:56 | SW 6 | 16.09 | Fair | CLR | 21 | 0 | 0% | 76.25 | 1017.4 | |||||||
| 10 | 22:56 | SW 6 | 16.09 | A Few Clouds | FEW055 | 21 | 0 | 0% | 76.33 | 1018.2 | |||||||
| 10 | 21:56 | SW 6 | 16.09 | Mostly Cloudy | BKN080 | 22 | 0 | 0% | 76.33 | 1018.5 | |||||||
| 10 | 20:56 | W 6 | 16.09 | Overcast | OVC095 | 22 | 0 | 0% | 76.3 | 1018.0 | |||||||
| 10 | 19:56 | Calm | 16.09 | Mostly Cloudy | BKN008 | 22.2 | 22.2 | 33.3 | 21.7 | 100% | 76.25 | 1017.3 | 1.14 | ||||
| 10 | 18:56 | Calm | 16.09 | Partly Cloudy | SCT006 | 22 | 0 | 0% | 76.23 | 1017.4 | |||||||
| Date | Time (edt) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºC) | Pressure | Precipitation (cm) | |||||||||||||||