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. | ||||||||||||||||
| 09 | 13:56 | S 7 | 4.00 | Light Rain | OVC005 | 46.4 | 0 | 0% | 43 | 30.1 | 1021.0 | ||||||
| 09 | 12:56 | S 7 | 5.00 | Fog/Mist | OVC007 | 46.9 | 46.9 | 46.9 | 37.9 | 100% | 44 | 30.12 | 1021.5 | ||||
| 09 | 11:56 | S 12 | 8.00 | Overcast | OVC009 | 46 | 46 | 100% | 41 | 30.14 | 1022.4 | ||||||
| 09 | 10:56 | S 10 | 9.00 | Overcast | OVC019 | 46 | 45 | 96% | 42 | 30.18 | 1023.7 | ||||||
| 09 | 09:56 | S 9 | 7.00 | Overcast | FEW008 SCT026 OVC035 | 45 | 45 | 100% | 41 | 30.21 | 1024.6 | ||||||
| 09 | 08:56 | S 9 | 5.00 | Overcast with Haze | SCT006 OVC031 | 44.6 | 0 | 0% | 40 | 30.22 | 1025.1 | ||||||
| 09 | 07:56 | SE 10 | 2.50 | Fog/Mist | OVC004 | 41 | 0 | 0% | 35 | 30.22 | 1025.1 | ||||||
| 09 | 06:56 | SE 5 | 5.00 | Overcast with Haze | OVC006 | 37.4 | 0 | 44.1 | 37 | 0% | 34 | 30.25 | 1026.1 | ||||
| 09 | 05:56 | SE 6 | 7.00 | Fair | CLR | 39.2 | 0 | 0% | 36 | 30.23 | 1025.5 | ||||||
| 09 | 04:56 | SE 7 | 9.00 | Fair | CLR | 39.9 | 39.9 | 100% | 36 | 30.25 | 1026.0 | ||||||
| 09 | 03:56 | S 8 | 10.00 | Fair | CLR | 41 | 41 | 100% | 36 | 30.25 | 1025.9 | ||||||
| 09 | 02:56 | SE 7 | 10.00 | Fair | CLR | 41 | 39.9 | 96% | 37 | 30.26 | 1026.1 | ||||||
| 09 | 01:56 | S 6 | 10.00 | Fair | CLR | 43 | 39 | 86% | 40 | 30.25 | 1026.0 | ||||||
| 09 | 00:56 | S 6 | 10.00 | Mostly Cloudy | BKN110 | 43 | 37.9 | 46 | 39 | 82% | 40 | 30.24 | 1025.6 | ||||
| 08 | 23:56 | SE 7 | 10.00 | Fair | CLR | 41 | 39 | 93% | 37 | 30.25 | 1025.9 | ||||||
| 08 | 22:56 | SE 7 | 10.00 | Fair | CLR | 41 | 37.9 | 89% | 37 | 30.27 | 1026.7 | ||||||
| 08 | 21:56 | Calm | 10.00 | Fair | CLR | 39 | 37.9 | 96% | 30.27 | 1026.6 | |||||||
| 08 | 20:56 | SE 5 | 10.00 | Fair | CLR | 41 | 37.9 | 89% | 38 | 30.27 | 1027.0 | ||||||
| 08 | 19:56 | E 3 | 10.00 | Fair | CLR | 43 | 39 | 86% | 30.26 | 1026.7 | |||||||
| 08 | 18:56 | SE 5 | 10.00 | Fair | CLR | 46 | 37.9 | 57 | 46 | 73% | 44 | 30.26 | 1026.3 | ||||
| 08 | 17:56 | S 5 | 10.00 | Fair | CLR | 48.9 | 37.9 | 66% | 48 | 30.25 | 1026.3 | ||||||
| 08 | 16:56 | S 5 | 10.00 | Fair | CLR | 53.1 | 37 | 55% | 30.23 | 1025.3 | |||||||
| 08 | 15:56 | SW 3 | 10.00 | Fair | CLR | 55.9 | 37 | 49% | 30.22 | 1025.1 | |||||||
| 08 | 14:56 | Calm | 10.00 | Fair | CLR | 55.9 | 37.9 | 51% | 30.21 | 1024.6 | |||||||
| 08 | 13:56 | SW 7 | 10.00 | Fair | CLR | 55.9 | 37.9 | 51% | 30.21 | 1024.8 | |||||||
| 08 | 12:56 | SW 3 | 10.00 | Fair | CLR | 55.9 | 37.9 | 57 | 28 | 51% | 30.23 | 1025.2 | |||||
| 08 | 11:56 | S 3 | 10.00 | Fair | CLR | 54 | 37.9 | 55% | 30.24 | 1025.7 | |||||||
| 08 | 10:56 | W 5 | 10.00 | Fair | CLR | 51.1 | 37.9 | 61% | 30.26 | 1026.5 | |||||||
| 08 | 09:56 | W 5 | 10.00 | Fair | CLR | 48 | 37.9 | 68% | 47 | 30.25 | 1026.1 | ||||||
| 08 | 08:56 | Calm | 10.00 | Fair | CLR | 39 | 37.9 | 96% | 30.21 | 1024.9 | |||||||
| 08 | 07:56 | Calm | 9.00 | Fair | CLR | 28.9 | 28.9 | 100% | 30.2 | 1024.5 | |||||||
| 08 | 06:56 | Calm | 10.00 | Fair | CLR | 28.9 | 28.9 | 37 | 28.9 | 100% | 30.17 | 1023.6 | |||||
| 08 | 05:56 | Calm | 10.00 | Fair | CLR | 30 | 30 | 100% | 30.15 | 1022.8 | |||||||
| 08 | 04:56 | SE 3 | 10.00 | Fair | CLR | 30 | 30 | 100% | 30.14 | 1022.3 | |||||||
| 08 | 03:56 | Calm | 10.00 | Fair | CLR | 32 | 32 | 100% | 30.12 | 1021.7 | |||||||
| 08 | 02:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 100% | 30.1 | 1020.8 | |||||||
| 08 | 01:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 100% | 30.08 | 1020.1 | |||||||
| 08 | 00:56 | NW 5 | 10.00 | Fair | CLR | 36 | 35.1 | 48 | 36 | 97% | 33 | 30.05 | 1019.4 | ||||
| 07 | 23:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37 | 97% | 30.06 | 1019.4 | |||||||
| 07 | 22:56 | NW 5 | 10.00 | Fair | CLR | 39 | 39 | 100% | 36 | 30.05 | 1019.0 | ||||||
| 07 | 21:56 | Calm | 10.00 | Fair | CLR | 39.9 | 37.9 | 93% | 30.03 | 1018.6 | |||||||
| 07 | 20:56 | Calm | 10.00 | Fair | CLR | 44.1 | 37.9 | 79% | 30.02 | 1018.3 | |||||||
| 07 | 19:56 | NW 6 | 10.00 | Fair | CLR | 46 | 37.9 | 73% | 44 | 30.02 | 1018.5 | ||||||
| 07 | 18:56 | Calm | 10.00 | Fair | CLR | 48 | 37.9 | 59 | 45 | 68% | 30 | 1017.7 | |||||
| 07 | 17:56 | NW 3 | 10.00 | Fair | CLR | 48.9 | 37 | 64% | 29.97 | 1016.6 | |||||||
| 07 | 16:56 | NW 5 | 10.00 | Fair | CLR | 53.1 | 37 | 55% | 29.93 | 1015.3 | |||||||
| 07 | 15:56 | W 8 | 10.00 | A Few Clouds | FEW046 | 55.9 | 39 | 53% | 29.91 | 1014.5 | |||||||
| 07 | 14:56 | W 12 G 22 | 10.00 | A Few Clouds | FEW046 | 57.9 | 39 | 50% | 29.9 | 1013.9 | |||||||
| 07 | 13:56 | NW 6 | 10.00 | Overcast | OVC048 | 57.9 | 39 | 50% | 29.87 | 1013.1 | |||||||
| 07 | 12:56 | NW 15 | 10.00 | Overcast | OVC046 | 55.9 | 39 | 57.9 | 32 | 53% | 29.84 | 1012.2 | |||||
| 07 | 11:56 | W 13 G 18 | 10.00 | Overcast | OVC050 | 55.9 | 41 | 57% | 29.84 | 1012.1 | |||||||
| 07 | 10:56 | NW 5 | 10.00 | Overcast | OVC048 | 54 | 42.1 | 64% | 29.84 | 1012.0 | |||||||
| 07 | 09:56 | Calm | 10.00 | Mostly Cloudy | BKN050 | 46.9 | 46.9 | 100% | 29.82 | 1011.4 | |||||||
| 07 | 08:56 | Calm | 4.00 | Fair with Haze | CLR | 39.2 | 0 | 0% | 29.8 | 1010.8 | |||||||
| 07 | 06:56 | Calm | 6.00 | Fair with Haze | CLR | 32 | 0 | 33.1 | 28.9 | 0% | 29.73 | 1008.4 | |||||
| 07 | 05:56 | Calm | 1.00 | Fog/Mist | VV003 | 30.2 | 0 | 0% | 29.7 | 1007.5 | |||||||
| 07 | 04:56 | Calm | 1.75 | Fog/Mist | CLR | 30.2 | 0 | 0% | 29.68 | 1006.8 | |||||||
| 07 | 03:56 | Calm | 3.00 | Fog/Mist | CLR | 30.2 | 0 | 0% | 29.67 | 1006.4 | |||||||
| 07 | 02:56 | Calm | 2.00 | Fog/Mist | FEW060 | 32 | 0 | 0% | 29.68 | 1006.8 | |||||||
| 07 | 01:56 | Calm | 2.50 | Fog/Mist | BKN060 | 30.2 | 0 | 0% | 29.67 | 1006.6 | |||||||
| 07 | 00:56 | Calm | 2.50 | Fog/Mist | CLR | 33.8 | 0 | 43 | 33.1 | 0% | 29.67 | 1006.5 | |||||
| 06 | 23:56 | Calm | 2.50 | Fog/Mist | CLR | 33.8 | 0 | 0% | 29.68 | 1006.8 | |||||||
| 06 | 22:56 | Calm | 4.00 | A Few Clouds with Haze | FEW095 | 37.4 | 0 | 0% | 29.69 | 1007.1 | |||||||
| 06 | 21:56 | Calm | 6.00 | Fog/Mist | SCT070 OVC085 | 39.9 | 39.9 | 100% | 29.7 | 1007.5 | |||||||
| 06 | 20:56 | Calm | 6.00 | Fog/Mist | FEW065 OVC085 | 42.1 | 42.1 | 100% | 29.71 | 1007.9 | |||||||
| 06 | 19:56 | Calm | 8.00 | Overcast | OVC080 | 42.1 | 42.1 | 100% | 29.73 | 1008.5 | |||||||
| 06 | 18:56 | Calm | 9.00 | Overcast | OVC070 | 42.1 | 42.1 | 46.9 | 41 | 100% | 29.74 | 1008.9 | |||||
| 06 | 17:56 | Calm | 10.00 | Mostly Cloudy | BKN070 | 42.1 | 41 | 96% | 29.76 | 1009.4 | |||||||
| 06 | 16:56 | Calm | 10.00 | Overcast | OVC016 | 45 | 41 | 86% | 29.76 | 1009.6 | |||||||
| 06 | 15:56 | Calm | 10.00 | Mostly Cloudy | BKN016 BKN090 | 45 | 41 | 86% | 29.75 | 1009.2 | |||||||
| 06 | 14:56 | SE 9 | 10.00 | Fair | CLR | 46.9 | 39.9 | 77% | 43 | 29.75 | 1009.2 | ||||||
| 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) | |||||||||||||||