Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (est) | 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. | ||||||||||||||||
| 09 | 06:56 | SE 7 | 8.05 | Overcast with Haze | OVC006 | 3 | 0 | 6.7 | 2.8 | 0% | 1 | 76.84 | 1026.1 | ||||
| 09 | 05:56 | SE 9 | 11.27 | Fair | CLR | 4 | 0 | 0% | 2 | 76.78 | 1025.5 | ||||||
| 09 | 04:56 | SE 11 | 14.48 | Fair | CLR | 4.4 | 4.4 | 100% | 2 | 76.84 | 1026.0 | ||||||
| 09 | 03:56 | S 13 | 16.09 | Fair | CLR | 5 | 5 | 100% | 2 | 76.84 | 1025.9 | ||||||
| 09 | 02:56 | SE 11 | 16.09 | Fair | CLR | 5 | 4.4 | 96% | 3 | 76.86 | 1026.1 | ||||||
| 09 | 01:56 | S 9 | 16.09 | Fair | CLR | 6.1 | 3.9 | 86% | 4 | 76.84 | 1026.0 | ||||||
| 09 | 00:56 | S 9 | 16.09 | Mostly Cloudy | BKN110 | 6.1 | 3.3 | 7.8 | 3.9 | 82% | 4 | 76.81 | 1025.6 | ||||
| 08 | 23:56 | SE 11 | 16.09 | Fair | CLR | 5 | 3.9 | 93% | 3 | 76.84 | 1025.9 | ||||||
| 08 | 22:56 | SE 11 | 16.09 | Fair | CLR | 5 | 3.3 | 89% | 3 | 76.89 | 1026.7 | ||||||
| 08 | 21:56 | Calm | 16.09 | Fair | CLR | 3.9 | 3.3 | 96% | 76.89 | 1026.6 | |||||||
| 08 | 20:56 | SE 7 | 16.09 | Fair | CLR | 5 | 3.3 | 89% | 4 | 76.89 | 1027.0 | ||||||
| 08 | 19:56 | E 6 | 16.09 | Fair | CLR | 6.1 | 3.9 | 86% | 76.86 | 1026.7 | |||||||
| 08 | 18:56 | SE 7 | 16.09 | Fair | CLR | 7.8 | 3.3 | 13.9 | 7.8 | 73% | 7 | 76.86 | 1026.3 | ||||
| 08 | 17:56 | S 7 | 16.09 | Fair | CLR | 9.4 | 3.3 | 66% | 9 | 76.84 | 1026.3 | ||||||
| 08 | 16:56 | S 7 | 16.09 | Fair | CLR | 11.7 | 2.8 | 55% | 76.78 | 1025.3 | |||||||
| 08 | 15:56 | SW 6 | 16.09 | Fair | CLR | 13.3 | 2.8 | 49% | 76.76 | 1025.1 | |||||||
| 08 | 14:56 | Calm | 16.09 | Fair | CLR | 13.3 | 3.3 | 51% | 76.73 | 1024.6 | |||||||
| 08 | 13:56 | SW 11 | 16.09 | Fair | CLR | 13.3 | 3.3 | 51% | 76.73 | 1024.8 | |||||||
| 08 | 12:56 | SW 6 | 16.09 | Fair | CLR | 13.3 | 3.3 | 13.9 | -2.2 | 51% | 76.78 | 1025.2 | |||||
| 08 | 11:56 | S 6 | 16.09 | Fair | CLR | 12.2 | 3.3 | 55% | 76.81 | 1025.7 | |||||||
| 08 | 10:56 | W 7 | 16.09 | Fair | CLR | 10.6 | 3.3 | 61% | 76.86 | 1026.5 | |||||||
| 08 | 09:56 | W 7 | 16.09 | Fair | CLR | 8.9 | 3.3 | 68% | 8 | 76.84 | 1026.1 | ||||||
| 08 | 08:56 | Calm | 16.09 | Fair | CLR | 3.9 | 3.3 | 96% | 76.73 | 1024.9 | |||||||
| 08 | 07:56 | Calm | 14.48 | Fair | CLR | -1.7 | -1.7 | 100% | 76.71 | 1024.5 | |||||||
| 08 | 06:56 | Calm | 16.09 | Fair | CLR | -1.7 | -1.7 | 2.8 | -1.7 | 100% | 76.63 | 1023.6 | |||||
| 08 | 05:56 | Calm | 16.09 | Fair | CLR | -1.1 | -1.1 | 100% | 76.58 | 1022.8 | |||||||
| 08 | 04:56 | SE 6 | 16.09 | Fair | CLR | -1.1 | -1.1 | 100% | 76.56 | 1022.3 | |||||||
| 08 | 03:56 | Calm | 16.09 | Fair | CLR | 0 | 0 | 100% | 76.5 | 1021.7 | |||||||
| 08 | 02:56 | Calm | 16.09 | Fair | CLR | 1.7 | 1.7 | 100% | 76.45 | 1020.8 | |||||||
| 08 | 01:56 | Calm | 16.09 | Fair | CLR | 1.7 | 1.7 | 100% | 76.4 | 1020.1 | |||||||
| 08 | 00:56 | NW 7 | 16.09 | Fair | CLR | 2.2 | 1.7 | 8.9 | 2.2 | 97% | 0 | 76.33 | 1019.4 | ||||
| 07 | 23:56 | Calm | 16.09 | Fair | CLR | 3.3 | 2.8 | 97% | 76.35 | 1019.4 | |||||||
| 07 | 22:56 | NW 7 | 16.09 | Fair | CLR | 3.9 | 3.9 | 100% | 2 | 76.33 | 1019.0 | ||||||
| 07 | 21:56 | Calm | 16.09 | Fair | CLR | 4.4 | 3.3 | 93% | 76.28 | 1018.6 | |||||||
| 07 | 20:56 | Calm | 16.09 | Fair | CLR | 6.7 | 3.3 | 79% | 76.25 | 1018.3 | |||||||
| 07 | 19:56 | NW 9 | 16.09 | Fair | CLR | 7.8 | 3.3 | 73% | 6 | 76.25 | 1018.5 | ||||||
| 07 | 18:56 | Calm | 16.09 | Fair | CLR | 8.9 | 3.3 | 15 | 7.2 | 68% | 76.2 | 1017.7 | |||||
| 07 | 17:56 | NW 6 | 16.09 | Fair | CLR | 9.4 | 2.8 | 64% | 76.12 | 1016.6 | |||||||
| 07 | 16:56 | NW 7 | 16.09 | Fair | CLR | 11.7 | 2.8 | 55% | 76.02 | 1015.3 | |||||||
| 07 | 15:56 | W 13 | 16.09 | A Few Clouds | FEW046 | 13.3 | 3.9 | 53% | 75.97 | 1014.5 | |||||||
| 07 | 14:56 | W 19 G 35 | 16.09 | A Few Clouds | FEW046 | 14.4 | 3.9 | 50% | 75.95 | 1013.9 | |||||||
| 07 | 13:56 | NW 9 | 16.09 | Overcast | OVC048 | 14.4 | 3.9 | 50% | 75.87 | 1013.1 | |||||||
| 07 | 12:56 | NW 24 | 16.09 | Overcast | OVC046 | 13.3 | 3.9 | 14.4 | 0 | 53% | 75.79 | 1012.2 | |||||
| 07 | 11:56 | W 20 G 30 | 16.09 | Overcast | OVC050 | 13.3 | 5 | 57% | 75.79 | 1012.1 | |||||||
| 07 | 10:56 | NW 7 | 16.09 | Overcast | OVC048 | 12.2 | 5.6 | 64% | 75.79 | 1012.0 | |||||||
| 07 | 09:56 | Calm | 16.09 | Mostly Cloudy | BKN050 | 8.3 | 8.3 | 100% | 75.74 | 1011.4 | |||||||
| 07 | 08:56 | Calm | 6.44 | Fair with Haze | CLR | 4 | 0 | 0% | 75.69 | 1010.8 | |||||||
| 07 | 06:56 | Calm | 9.66 | Fair with Haze | CLR | 0 | 0 | 0.6 | -1.7 | 0% | 75.51 | 1008.4 | |||||
| 07 | 05:56 | Calm | 1.61 | Fog/Mist | VV003 | -1 | 0 | 0% | 75.44 | 1007.5 | |||||||
| 07 | 04:56 | Calm | 2.82 | Fog/Mist | CLR | -1 | 0 | 0% | 75.39 | 1006.8 | |||||||
| 07 | 03:56 | Calm | 4.83 | Fog/Mist | CLR | -1 | 0 | 0% | 75.36 | 1006.4 | |||||||
| 07 | 02:56 | Calm | 3.22 | Fog/Mist | FEW060 | 0 | 0 | 0% | 75.39 | 1006.8 | |||||||
| 07 | 01:56 | Calm | 4.02 | Fog/Mist | BKN060 | -1 | 0 | 0% | 75.36 | 1006.6 | |||||||
| 07 | 00:56 | Calm | 4.02 | Fog/Mist | CLR | 1 | 0 | 6.1 | 0.6 | 0% | 75.36 | 1006.5 | |||||
| 06 | 23:56 | Calm | 4.02 | Fog/Mist | CLR | 1 | 0 | 0% | 75.39 | 1006.8 | |||||||
| 06 | 22:56 | Calm | 6.44 | A Few Clouds with Haze | FEW095 | 3 | 0 | 0% | 75.41 | 1007.1 | |||||||
| 06 | 21:56 | Calm | 9.66 | Fog/Mist | SCT070 OVC085 | 4.4 | 4.4 | 100% | 75.44 | 1007.5 | |||||||
| 06 | 20:56 | Calm | 9.66 | Fog/Mist | FEW065 OVC085 | 5.6 | 5.6 | 100% | 75.46 | 1007.9 | |||||||
| 06 | 19:56 | Calm | 12.87 | Overcast | OVC080 | 5.6 | 5.6 | 100% | 75.51 | 1008.5 | |||||||
| 06 | 18:56 | Calm | 14.48 | Overcast | OVC070 | 5.6 | 5.6 | 8.3 | 5 | 100% | 75.54 | 1008.9 | |||||
| 06 | 17:56 | Calm | 16.09 | Mostly Cloudy | BKN070 | 5.6 | 5 | 96% | 75.59 | 1009.4 | |||||||
| 06 | 16:56 | Calm | 16.09 | Overcast | OVC016 | 7.2 | 5 | 86% | 75.59 | 1009.6 | |||||||
| 06 | 15:56 | Calm | 16.09 | Mostly Cloudy | BKN016 BKN090 | 7.2 | 5 | 86% | 75.57 | 1009.2 | |||||||
| 06 | 14:56 | SE 15 | 16.09 | Fair | CLR | 8.3 | 4.4 | 77% | 6 | 75.57 | 1009.2 | ||||||
| 06 | 13:56 | E 7 | 16.09 | Fair | CLR | 7.8 | 3.9 | 77% | 7 | 75.62 | 1009.9 | ||||||
| 06 | 12:56 | Calm | 16.09 | Partly Cloudy | SCT007 | 6.1 | 2.8 | 6.1 | -1.7 | 80% | 75.74 | 1011.8 | |||||
| 06 | 11:56 | Calm | 16.09 | Mostly Cloudy | SCT007 BKN120 | 5 | 1.7 | 79% | 75.84 | 1013.1 | |||||||
| 06 | 10:56 | E 7 | 16.09 | Fair | CLR | 4.4 | 2.8 | 89% | 3 | 75.95 | 1014.3 | ||||||
| 06 | 09:56 | E 6 | 16.09 | Fair | CLR | 2.8 | 2.2 | 96% | 76.05 | 1015.6 | |||||||
| 06 | 08:56 | SE 7 | 16.09 | Fair | CLR | 1.1 | 1.1 | 100% | -1 | 76.05 | 1015.7 | ||||||
| Date | Time (est) | 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) | |||||||||||||||