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. | ||||||||||||||||
| 11 | 12:56 | NW 8 | 10.00 | Fair | CLR | 81 | 70 | 69% | 84 | 29.97 | 1015.5 | ||||||
| 11 | 11:56 | NW 7 | 10.00 | Fair | CLR | 80.1 | 70 | 71% | 83 | 30 | 1016.6 | ||||||
| 11 | 09:56 | W 8 | 10.00 | Fair | CLR | 75 | 70 | 84% | 75 | 29.96 | 1015.5 | ||||||
| 11 | 08:56 | W 8 | 10.00 | Fair | CLR | 71.1 | 70 | 96% | 29.95 | 1015.1 | |||||||
| 11 | 07:56 | Vrbl 5 | 10.00 | Fair | CLR | 69.8 | 0 | 70 | 68 | 0% | 29.91 | 1014.0 | 0.09 | ||||
| 11 | 06:56 | NW 5 | 6.00 | Light Rain Fog/Mist | FEW070 BKN100 BKN110 | 68 | 68 | 100% | 29.97 | 1016.1 | 0.05 | ||||||
| 11 | 05:56 | W 9 | 10.00 | Light Rain | CLR | 70 | 70 | 100% | 30.03 | 1018.0 | 0.03 | ||||||
| 11 | 04:56 | Calm | 10.00 | Light Rain | FEW070 SCT100 | 69.8 | 0 | 0% | 29.98 | 1016.3 | 0.01 | 0.01 | |||||
| 11 | 03:56 | Calm | 10.00 | Mostly Cloudy | SCT043 SCT050 BKN065 | 69.8 | 0 | 0% | 29.97 | 1015.5 | |||||||
| 11 | 02:56 | Calm | 8.00 | Fair | CLR | 68 | 0 | 0% | 29.98 | 1016.1 | |||||||
| 11 | 01:56 | Calm | 6.00 | Fair with Haze | CLR | 68 | 0 | 72 | 68 | 0% | 30.01 | 1017.0 | |||||
| 11 | 00:56 | Calm | 10.00 | A Few Clouds | FEW050 | 69.8 | 0 | 0% | 30.01 | 1017.2 | |||||||
| 10 | 23:56 | SW 3 | 10.00 | Fair | CLR | 69.8 | 0 | 0% | 30.02 | 1017.4 | |||||||
| 10 | 22:56 | SW 3 | 10.00 | A Few Clouds | FEW055 | 69.8 | 0 | 0% | 30.05 | 1018.2 | |||||||
| 10 | 21:56 | SW 3 | 10.00 | Mostly Cloudy | BKN080 | 71.6 | 0 | 0% | 30.05 | 1018.5 | |||||||
| 10 | 20:56 | W 3 | 10.00 | Overcast | OVC095 | 71.6 | 0 | 0% | 30.04 | 1018.0 | |||||||
| 10 | 19:56 | Calm | 10.00 | Mostly Cloudy | BKN008 | 72 | 72 | 91.9 | 71.1 | 100% | 30.02 | 1017.3 | 0.45 | ||||
| 10 | 18:56 | Calm | 10.00 | Partly Cloudy | SCT006 | 71.6 | 0 | 0% | 30.01 | 1017.4 | |||||||
| 10 | 17:56 | S 5 | 10.00 | Partly Cloudy | SCT004 | 71.6 | 0 | 0% | 29.99 | 1016.5 | 0.01 | ||||||
| 10 | 16:56 | Calm | 8.00 | Thunderstorm in Vicinity Light Rain | SCT120 | 71.6 | 0 | 0% | 30.01 | 1017.2 | 0.44 | 0.44 | |||||
| 10 | 15:56 | Vrbl 5 | 10.00 | Thunderstorm in Vicinity | FEW070 | 88 | 69.1 | 54% | 92 | 29.97 | 1015.7 | ||||||
| 10 | 14:56 | SW 8 | 10.00 | Mostly Cloudy | SCT050 BKN060 | 90 | 71.1 | 54% | 96 | 29.99 | 1016.3 | ||||||
| 10 | 13:56 | Vrbl 6 | 7.00 | Partly Cloudy | FEW045 SCT055 | 91.9 | 73 | 91.9 | 73 | 54% | 101 | 30.02 | 1017.2 | ||||
| 10 | 12:56 | W 7 | 7.00 | Mostly Cloudy | BKN041 | 88 | 73 | 61% | 96 | 30.04 | 1017.9 | ||||||
| 10 | 11:56 | Vrbl 6 | 10.00 | Fair | CLR | 88 | 72 | 59% | 95 | 30.05 | 1018.6 | ||||||
| 10 | 10:56 | Calm | 10.00 | Fair | CLR | 87.1 | 71.1 | 59% | 93 | 30.09 | 1019.7 | ||||||
| 10 | 09:56 | W 5 | 10.00 | A Few Clouds | FEW100 | 84 | 70 | 63% | 88 | 30.09 | 1019.8 | ||||||
| 10 | 08:56 | Calm | 10.00 | Mostly Cloudy | FEW038 BKN110 | 80.1 | 71.1 | 74% | 84 | 30.09 | 1019.6 | ||||||
| 10 | 07:56 | Calm | 10.00 | Fair | CLR | 73 | 71.1 | 73 | 68 | 94% | 30.08 | 1019.5 | |||||
| 10 | 06:56 | Calm | 9.00 | Fair | CLR | 69.8 | 0 | 0% | 30.07 | 1018.9 | |||||||
| 10 | 05:56 | Calm | 10.00 | Fair | CLR | 69.8 | 0 | 0% | 30.05 | 1018.2 | |||||||
| 10 | 04:56 | Calm | 10.00 | Fair | CLR | 69.8 | 0 | 0% | 30.04 | 1018.0 | |||||||
| 10 | 03:56 | Calm | 10.00 | Fair | CLR | 69.8 | 0 | 0% | 30.04 | 1018.2 | |||||||
| 10 | 02:56 | Calm | 10.00 | Fair | CLR | 71.6 | 0 | 0% | 30.06 | 1018.8 | |||||||
| 10 | 01:56 | Calm | 10.00 | Fair | CLR | 73 | 73 | 81 | 72 | 100% | 30.06 | 1018.7 | |||||
| 10 | 00:56 | Calm | 10.00 | Partly Cloudy | SCT047 | 73.9 | 73.9 | 100% | 30.06 | 1018.8 | |||||||
| 09 | 23:56 | Calm | 10.00 | Fair | CLR | 73 | 73 | 100% | 30.06 | 1018.9 | |||||||
| 09 | 22:56 | Calm | 10.00 | Fair | CLR | 73.9 | 73 | 97% | 30.06 | 1018.6 | |||||||
| 09 | 21:56 | Calm | 10.00 | Fair | CLR | 75.9 | 71.1 | 85% | 76 | 30.05 | 1018.5 | ||||||
| 09 | 20:56 | Calm | 10.00 | Fair | CLR | 78.1 | 70 | 76% | 80 | 30.03 | 1017.9 | ||||||
| 09 | 19:56 | Calm | 10.00 | Fair | CLR | 81 | 69.1 | 90 | 81 | 67% | 84 | 30.03 | 1017.6 | ||||
| 09 | 18:56 | W 5 | 10.00 | Fair | CLR | 86 | 69.1 | 57% | 90 | 30.03 | 1017.5 | ||||||
| 09 | 17:56 | NW 5 | 10.00 | Fair | CLR | 88 | 68 | 52% | 92 | 30.03 | 1017.5 | ||||||
| 09 | 16:56 | NW 5 | 9.00 | Fair | CLR | 89.1 | 68 | 50% | 93 | 30.04 | 1018.0 | ||||||
| 09 | 15:56 | NW 12 | 10.00 | A Few Clouds | FEW050 | 89.1 | 69.1 | 52% | 94 | 30.05 | 1018.5 | ||||||
| 09 | 14:56 | W 10 | 9.00 | A Few Clouds | FEW055 | 89.1 | 66 | 47% | 92 | 30.06 | 1018.8 | ||||||
| 09 | 13:56 | NW 10 | 4.00 | Fair with Haze | CLR | 88 | 71.1 | 89.1 | 73.9 | 57% | 94 | 30.07 | 1019.1 | ||||
| 09 | 12:56 | Vrbl 3 | 9.00 | Partly Cloudy | SCT042 | 87.1 | 71.1 | 59% | 93 | 30.07 | 1019.1 | ||||||
| 09 | 11:56 | Vrbl 5 | 4.00 | Fair with Haze | CLR | 87.1 | 71.1 | 59% | 93 | 30.08 | 1019.3 | ||||||
| 09 | 10:56 | NW 7 | 10.00 | Fair | CLR | 84 | 70 | 63% | 88 | 30.08 | 1019.3 | ||||||
| 09 | 09:56 | W 8 | 10.00 | Fair | CLR | 82.9 | 73 | 72% | 89 | 30.07 | 1019.2 | ||||||
| 09 | 08:56 | W 10 | 10.00 | Fair | CLR | 81 | 73 | 77% | 86 | 30.07 | 1019.2 | ||||||
| 09 | 07:56 | NW 3 | 10.00 | Fair | CLR | 73.9 | 73.9 | 73.9 | 70 | 100% | 30.07 | 1018.9 | |||||
| 09 | 06:56 | Calm | 10.00 | Fair | CLR | 71.6 | 0 | 0% | 30.04 | 1018.1 | |||||||
| 09 | 05:56 | Calm | 9.00 | Fair | CLR | 69.8 | 0 | 0% | 30.04 | 1018.0 | |||||||
| 09 | 04:56 | Calm | 10.00 | Fair | CLR | 71.6 | 0 | 0% | 30.03 | 1017.7 | |||||||
| 09 | 03:56 | Calm | 10.00 | Fair | CLR | 71.6 | 0 | 0% | 30.02 | 1017.3 | |||||||
| 09 | 02:56 | Calm | 10.00 | Fair | CLR | 71.6 | 0 | 0% | 30.02 | 1017.4 | |||||||
| 09 | 01:56 | Calm | 10.00 | Fair | CLR | 71.6 | 0 | 84 | 72 | 0% | 30.03 | 1017.8 | |||||
| 09 | 00:56 | Calm | 10.00 | Fair | CLR | 73 | 73 | 100% | 30.04 | 1017.9 | |||||||
| 08 | 23:56 | Calm | 10.00 | Fair | CLR | 75 | 73 | 94% | 73 | 30.04 | 1018.0 | ||||||
| 08 | 22:56 | Calm | 10.00 | Mostly Cloudy | SCT055 BKN070 | 75.9 | 72 | 88% | 76 | 30.04 | 1018.2 | ||||||
| 08 | 21:56 | Calm | 10.00 | Partly Cloudy | SCT065 | 77 | 69.1 | 77% | 79 | 30.04 | 1018.1 | ||||||
| 08 | 20:56 | Calm | 10.00 | Fair | CLR | 81 | 69.1 | 67% | 84 | 30.03 | 1017.6 | ||||||
| 08 | 19:56 | S 5 | 10.00 | Fair | CLR | 84 | 66.9 | 91 | 84 | 57% | 87 | 30.02 | 1017.1 | ||||
| 08 | 18:56 | SW 5 | 10.00 | A Few Clouds | FEW038 | 89.1 | 73.9 | 61% | 98 | 30 | 1016.7 | ||||||
| 08 | 17:56 | SW 7 | 10.00 | A Few Clouds | FEW055 | 90 | 72 | 56% | 97 | 30.01 | 1017.1 | ||||||
| 08 | 16:56 | W 5 | 7.00 | Partly Cloudy | SCT050 | 90 | 72 | 56% | 97 | 30.02 | 1017.4 | ||||||
| 08 | 15:56 | SW 3 | 10.00 | A Few Clouds | FEW048 | 89.1 | 72 | 57% | 96 | 30.04 | 1018.1 | ||||||
| 08 | 14:56 | Vrbl 5 | 8.00 | Fair | CLR | 91 | 73 | 56% | 100 | 30.06 | 1018.7 | ||||||
| 08 | 13:56 | NW 9 | 10.00 | Fair | CLR | 84 | 73 | 88 | 73 | 70% | 90 | 30.08 | 1019.3 | ||||
| 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) | |||||||||||||||