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. | ||||||||||||||||
| 29 | 14:56 | W 9 G 17 | 10.00 | Fair | CLR | 75.9 | 48.9 | 39% | 78 | 29.96 | 1015.7 | ||||||
| 29 | 13:56 | Vrbl 5 | 10.00 | Fair | CLR | 75 | 48.9 | 77 | 60.1 | 40% | 77 | 29.99 | 1016.6 | ||||
| 29 | 12:56 | NW 7 | 10.00 | Fair | CLR | 73 | 48 | 41% | 30.03 | 1018.0 | |||||||
| 29 | 11:56 | Vrbl 7 | 10.00 | Fair | CLR | 72 | 48 | 43% | 30.07 | 1019.2 | |||||||
| 29 | 10:56 | Calm | 10.00 | Fair | CLR | 70 | 48 | 46% | 30.09 | 1019.9 | |||||||
| 29 | 09:56 | Calm | 10.00 | Fair | CLR | 69.1 | 48.9 | 49% | 30.1 | 1020.3 | |||||||
| 29 | 08:56 | Vrbl 5 | 10.00 | Fair | CLR | 64.9 | 50 | 59% | 30.11 | 1020.6 | |||||||
| 29 | 07:56 | Calm | 10.00 | Fair | CLR | 60.1 | 48.9 | 60.1 | 48 | 67% | 30.11 | 1020.6 | |||||
| 29 | 05:56 | Calm | 10.00 | Fair | CLR | 48.2 | 0 | 0% | 30.09 | 1020.4 | |||||||
| 29 | 04:56 | Calm | 10.00 | Fair | CLR | 48.9 | 48.9 | 100% | 30.08 | 1019.8 | |||||||
| 29 | 03:56 | Calm | 10.00 | Fair | CLR | 50 | 50 | 100% | 30.07 | 1019.5 | |||||||
| 29 | 02:56 | Calm | 10.00 | Fair | CLR | 51.1 | 50 | 96% | 30.08 | 1019.7 | |||||||
| 29 | 01:56 | Calm | 10.00 | Fair | CLR | 53.1 | 50 | 72 | 53.1 | 89% | 30.09 | 1019.9 | |||||
| 29 | 00:56 | Calm | 10.00 | Fair | CLR | 55.9 | 48 | 75% | 30.08 | 1019.7 | |||||||
| 28 | 23:56 | Calm | 10.00 | Fair | CLR | 59 | 46.9 | 64% | 30.08 | 1019.7 | |||||||
| 28 | 22:56 | Vrbl 3 | 10.00 | Fair | CLR | 62.1 | 46 | 56% | 30.08 | 1019.5 | |||||||
| 28 | 21:56 | Vrbl 3 | 10.00 | Fair | CLR | 64 | 48 | 56% | 30.05 | 1018.5 | |||||||
| 28 | 20:56 | Vrbl 3 | 10.00 | Fair | CLR | 66.9 | 50 | 55% | 30.01 | 1017.1 | |||||||
| 28 | 19:56 | Vrbl 3 | 10.00 | Fair | CLR | 72 | 48 | 79 | 72 | 43% | 29.98 | 1016.2 | |||||
| 28 | 18:56 | Vrbl 6 | 10.00 | Fair | CLR | 73 | 48 | 41% | 29.97 | 1015.7 | |||||||
| 28 | 17:56 | NW 8 | 10.00 | Mostly Cloudy | SCT080 BKN095 | 75.9 | 48.9 | 39% | 78 | 29.96 | 1015.5 | ||||||
| 28 | 16:56 | NW 8 G 16 | 10.00 | Mostly Cloudy | BKN080 | 78.1 | 48.9 | 36% | 79 | 29.95 | 1015.3 | ||||||
| 28 | 15:56 | Vrbl 6 | 8.00 | A Few Clouds | FEW090 | 79 | 50 | 36% | 79 | 29.95 | 1015.2 | ||||||
| 28 | 14:56 | NW 10 G 21 | 10.00 | Fair | CLR | 79 | 48.9 | 35% | 79 | 29.96 | 1015.4 | ||||||
| 28 | 13:56 | NW 12 G 21 | 10.00 | Partly Cloudy | SCT075 | 77 | 48.9 | 78.1 | 68 | 37% | 78 | 29.98 | 1016.0 | ||||
| 28 | 12:56 | Vrbl 7 G 16 | 10.00 | Mostly Cloudy | BKN065 | 75 | 53.1 | 46% | 78 | 29.98 | 1016.4 | ||||||
| 28 | 11:56 | NW 9 | 10.00 | A Few Clouds | FEW055 | 75 | 51.1 | 43% | 78 | 29.98 | 1016.2 | ||||||
| 28 | 10:56 | NW 9 | 10.00 | Fair | CLR | 73.9 | 55 | 52% | 29.97 | 1016.0 | |||||||
| 28 | 09:56 | NW 9 G 16 | 10.00 | Fair | CLR | 72 | 53.1 | 52% | 29.97 | 1015.8 | |||||||
| 28 | 08:56 | NW 7 G 16 | 10.00 | Partly Cloudy | SCT110 | 70 | 57.9 | 66% | 29.96 | 1015.5 | |||||||
| 28 | 07:56 | NW 6 | 10.00 | Fair | CLR | 69.1 | 66 | 69.1 | 63 | 90% | 29.95 | 1015.2 | |||||
| 28 | 06:56 | Vrbl 5 | 10.00 | Mostly Cloudy | BKN095 | 64.4 | 0 | 0% | 29.93 | 1014.7 | |||||||
| 28 | 05:56 | Calm | 10.00 | Partly Cloudy | SCT085 | 64.4 | 0 | 0% | 29.91 | 1013.7 | |||||||
| 28 | 04:56 | NW 5 | 10.00 | Fair | CLR | 66.2 | 0 | 0% | 29.89 | 1013.0 | |||||||
| 28 | 03:56 | NW 5 | 10.00 | Fair | CLR | 66.2 | 0 | 0% | 29.87 | 1012.6 | |||||||
| 28 | 02:56 | W 3 | 10.00 | Overcast | OVC110 | 66.2 | 0 | 0% | 29.87 | 1012.5 | |||||||
| 28 | 01:56 | W 5 | 10.00 | Overcast | OVC110 | 68 | 0 | 75 | 68 | 0% | 29.87 | 1012.5 | 0.01 | 0.03 | |||
| 28 | 00:56 | W 6 | 10.00 | Overcast | OVC110 | 69.8 | 0 | 0% | 29.88 | 1013.0 | |||||||
| 27 | 23:56 | W 6 | 10.00 | Overcast | OVC110 | 69.8 | 0 | 0% | 29.89 | 1013.3 | |||||||
| 27 | 22:56 | W 3 | 10.00 | A Few Clouds | FEW120 | 69.8 | 0 | 0% | 29.89 | 1013.3 | 0.02 | ||||||
| 27 | 21:56 | W 5 | 10.00 | Mostly Cloudy | BKN120 | 71.6 | 0 | 0% | 29.89 | 1013.2 | |||||||
| 27 | 20:56 | Calm | 10.00 | A Few Clouds | FEW110 | 71.1 | 71.1 | 100% | 29.87 | 1012.6 | 0.02 | ||||||
| 27 | 19:56 | SW 3 | 10.00 | Mostly Cloudy | BKN110 | 73.9 | 72 | 80.1 | 73.9 | 94% | 29.9 | 1013.3 | |||||
| 27 | 18:56 | W 3 | 10.00 | Fair | CLR | 75.9 | 71.1 | 85% | 76 | 29.88 | 1012.8 | ||||||
| 27 | 17:56 | NW 3 | 10.00 | Fair | CLR | 78.1 | 70 | 76% | 80 | 29.88 | 1012.6 | ||||||
| 27 | 16:56 | W 6 | 10.00 | A Few Clouds | FEW022 | 79 | 71.1 | 77% | 82 | 29.9 | 1013.2 | ||||||
| 27 | 15:56 | NW 6 | 10.00 | Partly Cloudy | SCT037 | 78.1 | 73.9 | 87% | 81 | 29.91 | 1013.9 | ||||||
| 27 | 14:56 | NW 8 | 10.00 | Overcast | BKN014 BKN019 OVC029 | 77 | 75 | 94% | 78 | 29.92 | 1014.1 | ||||||
| 27 | 13:56 | NW 7 | 10.00 | Mostly Cloudy | SCT008 BKN013 | 73 | 73 | 73.9 | 70 | 100% | 29.93 | 1014.7 | 0.01 | 0.31 | |||
| 27 | 12:56 | W 5 | 10.00 | Light Rain | BKN010 BKN032 OVC070 | 71.6 | 0 | 0% | 29.96 | 1015.7 | 0.03 | ||||||
| 27 | 11:56 | W 8 | 10.00 | Overcast | SCT014 BKN032 OVC070 | 73 | 73 | 100% | 30 | 1016.8 | |||||||
| 27 | 10:56 | Vrbl 5 | 10.00 | A Few Clouds | FEW009 | 73.9 | 73.9 | 100% | 29.98 | 1016.4 | 0.01 | 0.27 | |||||
| 27 | 09:56 | W 3 | 1.00 | Heavy Rain | BKN006 OVC009 | 69.8 | 0 | 0% | 30 | 1016.7 | 0.26 | ||||||
| 27 | 08:56 | W 5 | 9.00 | Overcast | OVC004 | 71.6 | 0 | 0% | 29.98 | 1016.2 | |||||||
| 27 | 07:56 | Calm | 5.00 | Overcast with Haze | OVC004 | 71.6 | 0 | 71.1 | 66.9 | 0% | 29.99 | 1016.5 | |||||
| 27 | 06:56 | Calm | 3.00 | Fog/Mist | OVC004 | 69.8 | 0 | 0% | 29.99 | 1016.5 | |||||||
| 27 | 05:56 | Calm | 5.00 | Overcast with Haze | OVC006 | 69.8 | 0 | 0% | 29.99 | 1016.5 | |||||||
| 27 | 04:56 | Calm | 9.00 | Overcast | OVC008 | 69.8 | 0 | 0% | 30 | 1016.8 | |||||||
| 27 | 03:56 | Calm | 10.00 | Overcast | OVC006 | 69.8 | 0 | 0% | 30 | 1016.7 | |||||||
| 27 | 02:56 | SE 3 | 10.00 | Overcast | OVC010 | 69.8 | 0 | 0% | 30 | 1017.0 | |||||||
| 27 | 01:56 | Calm | 10.00 | Overcast | OVC012 | 68 | 0 | 70 | 66.9 | 0% | 30.02 | 1017.5 | |||||
| 27 | 00:56 | Calm | 10.00 | Overcast | BKN016 OVC100 | 69.8 | 0 | 0% | 30.04 | 1018.4 | |||||||
| 26 | 23:56 | Calm | 10.00 | Partly Cloudy | FEW090 SCT110 | 66.2 | 0 | 0% | 30.05 | 1018.6 | |||||||
| 26 | 22:56 | Calm | 10.00 | A Few Clouds | FEW018 | 69.1 | 69.1 | 100% | 30.07 | 1019.4 | |||||||
| 26 | 21:56 | SE 3 | 10.00 | Mostly Cloudy | BKN022 | 68 | 68 | 100% | 30.08 | 1019.6 | |||||||
| 26 | 20:56 | Calm | 10.00 | Partly Cloudy | SCT022 | 68 | 68 | 100% | 30.08 | 1019.5 | |||||||
| 26 | 19:56 | Calm | 10.00 | Mostly Cloudy | BKN037 | 70 | 69.1 | 75.9 | 70 | 97% | 30.08 | 1019.5 | |||||
| 26 | 18:56 | Calm | 10.00 | Mostly Cloudy | BKN043 BKN100 | 71.1 | 70 | 96% | 30.08 | 1019.6 | |||||||
| 26 | 17:56 | SE 6 | 10.00 | Mostly Cloudy | FEW047 SCT055 BKN100 | 73.9 | 66 | 76% | 30.09 | 1019.8 | |||||||
| 26 | 16:56 | SE 5 | 10.00 | Overcast | OVC044 | 72 | 66 | 82% | 30.1 | 1020.3 | |||||||
| 26 | 15:56 | Vrbl 3 | 10.00 | Overcast | BKN050 OVC065 | 75.9 | 63 | 64% | 78 | 30.1 | 1020.5 | ||||||
| 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) | |||||||||||||||