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. | ||||||||||||||||
| 27 | 14:56 | SW 7 | 10.00 | Fair | CLR | 55.9 | 30.9 | 39% | 30.07 | 1019.9 | |||||||
| 27 | 13:56 | W 7 | 10.00 | A Few Clouds | FEW049 | 54 | 30.9 | 42% | 30.07 | 1019.9 | |||||||
| 27 | 12:56 | Calm | 10.00 | Fair | CLR | 53.1 | 32 | 53.1 | 26.1 | 45% | 30.08 | 1020.4 | |||||
| 27 | 11:56 | S 3 | 10.00 | Fair | CLR | 52 | 33.1 | 49% | 30.11 | 1021.5 | |||||||
| 27 | 10:56 | NE 3 | 10.00 | Fair | CLR | 48 | 30.9 | 52% | 30.12 | 1021.7 | |||||||
| 27 | 09:56 | NW 3 | 10.00 | Fair | CLR | 43 | 35.1 | 74% | 30.12 | 1021.9 | |||||||
| 27 | 08:56 | Calm | 4.00 | Fair with Haze | CLR | 39.2 | 0 | 0% | 30.11 | 1021.3 | |||||||
| 27 | 07:56 | Calm | 3.00 | Fog/Mist | CLR | 28.9 | 28 | 96% | 30.09 | 1021.0 | |||||||
| 27 | 06:56 | Calm | 2.00 | Fog/Mist | CLR | 27 | 27 | 30 | 25 | 100% | 30.07 | 1020.3 | |||||
| 27 | 05:56 | Calm | 3.00 | Fog/Mist | BKN002 | 26.1 | 26.1 | 100% | 30.04 | 1019.3 | |||||||
| 27 | 04:56 | Calm | 2.50 | Fog/Mist | BKN002 | 25 | 25 | 100% | 30.02 | 1018.6 | |||||||
| 27 | 03:56 | Calm | 2.50 | Fog/Mist | CLR | 26.6 | 0 | 0% | 30 | 1017.9 | |||||||
| 27 | 02:56 | Calm | 4.00 | Fog/Mist | CLR | 28 | 28 | 100% | 29.99 | 1017.4 | |||||||
| 27 | 01:56 | SE 5 | 4.00 | Fair with Haze | CLR | 28.4 | 0 | 0% | 24 | 29.99 | 1017.4 | ||||||
| 27 | 00:56 | Calm | 4.00 | Fair with Haze | CLR | 30.2 | 0 | 41 | 28.9 | 0% | 29.99 | 1017.5 | |||||
| 26 | 23:56 | Calm | 4.00 | Fair with Haze | CLR | 30.2 | 0 | 0% | 29.98 | 1017.1 | |||||||
| 26 | 22:56 | Calm | 8.00 | A Few Clouds | FEW090 | 35.6 | 0 | 0% | 29.97 | 1016.7 | |||||||
| 26 | 21:56 | Calm | 10.00 | Overcast | OVC095 | 37.4 | 0 | 0% | 29.96 | 1016.3 | |||||||
| 26 | 20:56 | Calm | 10.00 | Overcast | BKN070 OVC100 | 39 | 39 | 100% | 29.94 | 1015.8 | |||||||
| 26 | 19:56 | Calm | 10.00 | Overcast | FEW060 OVC075 | 39.9 | 39 | 97% | 29.93 | 1015.2 | |||||||
| 26 | 18:56 | Calm | 10.00 | Overcast | BKN042 OVC055 | 39.9 | 39 | 52 | 39.9 | 97% | 29.92 | 1014.8 | |||||
| 26 | 17:56 | Calm | 10.00 | Overcast | OVC040 | 41 | 39 | 93% | 29.89 | 1013.8 | |||||||
| 26 | 16:56 | Calm | 10.00 | Overcast | FEW036 SCT046 OVC060 | 41 | 39.9 | 96% | 29.88 | 1013.6 | |||||||
| 26 | 15:56 | Calm | 10.00 | Light Rain | SCT035 BKN043 OVC055 | 42.1 | 39.9 | 92% | 29.87 | 1013.4 | |||||||
| 26 | 14:56 | Vrbl 3 | 10.00 | Overcast | FEW045 OVC065 | 45 | 33.1 | 63% | 29.87 | 1013.3 | |||||||
| 26 | 13:56 | Vrbl 3 | 10.00 | Overcast | BKN055 BKN070 OVC085 | 48.9 | 28 | 44% | 29.87 | 1013.1 | |||||||
| 26 | 12:56 | Vrbl 5 | 10.00 | Partly Cloudy | FEW090 SCT100 | 51.1 | 30 | 52 | 35.1 | 45% | 29.88 | 1013.4 | |||||
| 26 | 10:56 | Calm | 10.00 | Mostly Cloudy | BKN100 | 48.9 | 28.9 | 46% | 29.91 | 1014.4 | |||||||
| 26 | 09:56 | Vrbl 3 | 10.00 | Fair | CLR | 46.9 | 28 | 48% | 29.89 | 1013.9 | |||||||
| 26 | 08:56 | E 3 | 10.00 | Fair | CLR | 43 | 32 | 65% | 29.9 | 1014.2 | |||||||
| 26 | 07:56 | SE 3 | 10.00 | Fair | CLR | 39 | 28 | 65% | 29.88 | 1013.6 | |||||||
| 26 | 06:56 | Calm | 10.00 | Fair | CLR | 37 | 28 | 37.9 | 34 | 70% | 29.86 | 1012.7 | |||||
| 26 | 05:56 | Calm | 10.00 | Fair | CLR | 37 | 30 | 76% | 29.84 | 1012.1 | |||||||
| 26 | 04:56 | Calm | 10.00 | Fair | CLR | 37 | 30.9 | 79% | 29.83 | 1011.6 | |||||||
| 26 | 03:56 | Calm | 10.00 | Fair | CLR | 35.1 | 33.1 | 93% | 29.8 | 1010.8 | |||||||
| 26 | 02:56 | Calm | 10.00 | Fair | CLR | 34 | 33.1 | 97% | 29.79 | 1010.5 | |||||||
| 26 | 01:56 | Calm | 10.00 | Fair | CLR | 36 | 33.1 | 89% | 29.79 | 1010.5 | |||||||
| 26 | 00:56 | Calm | 10.00 | Fair | CLR | 37.9 | 32 | 50 | 37 | 79% | 29.77 | 1009.8 | |||||
| 25 | 23:56 | SW 6 | 10.00 | A Few Clouds | FEW070 | 44.1 | 32 | 63% | 41 | 29.76 | 1009.3 | ||||||
| 25 | 22:56 | SW 3 | 10.00 | A Few Clouds | FEW085 | 43 | 30.9 | 63% | 29.75 | 1009.1 | |||||||
| 25 | 21:56 | SW 7 | 10.00 | Mostly Cloudy | BKN090 | 39.9 | 33.1 | 77% | 36 | 29.75 | 1009.1 | ||||||
| 25 | 20:56 | Calm | 10.00 | Partly Cloudy | SCT080 | 39.9 | 30.9 | 70% | 29.73 | 1008.4 | |||||||
| 25 | 19:56 | Calm | 10.00 | Fair | CLR | 44.1 | 30.9 | 60% | 29.71 | 1007.9 | |||||||
| 25 | 18:56 | W 8 | 10.00 | Fair | CLR | 50 | 30.9 | 52 | 48 | 48% | 47 | 29.7 | 1007.5 | ||||
| 25 | 17:56 | Vrbl 3 | 10.00 | Fair | CLR | 51.1 | 32 | 48% | 29.66 | 1006.1 | |||||||
| 25 | 16:56 | SW 5 | 10.00 | Mostly Cloudy | BKN060 BKN080 | 51.1 | 32 | 48% | 29.64 | 1005.4 | |||||||
| 25 | 15:56 | SW 9 | 10.00 | Overcast | OVC060 | 50 | 30.9 | 48% | 47 | 29.63 | 1005.0 | ||||||
| 25 | 14:56 | S 7 | 10.00 | Overcast | OVC055 | 51.1 | 30 | 45% | 29.63 | 1005.0 | |||||||
| 25 | 13:56 | SW 8 | 10.00 | Overcast | OVC055 | 50 | 28.9 | 44% | 47 | 29.63 | 1005.0 | ||||||
| 25 | 12:56 | S 12 | 10.00 | Fair | CLR | 50 | 26.1 | 50 | 35.1 | 39% | 46 | 29.66 | 1005.9 | ||||
| 25 | 11:56 | S 8 | 10.00 | Mostly Cloudy | FEW075 BKN100 BKN110 | 46 | 25 | 44% | 42 | 29.69 | 1007.0 | ||||||
| 25 | 10:56 | SW 8 | 10.00 | Overcast | OVC060 | 45 | 23 | 42% | 41 | 29.7 | 1007.5 | ||||||
| 25 | 09:56 | SW 8 | 10.00 | Overcast | OVC060 | 41 | 21 | 45% | 36 | 29.72 | 1008.1 | ||||||
| 25 | 08:56 | SW 6 | 10.00 | Overcast | OVC065 | 37.9 | 21 | 51% | 34 | 29.71 | 1007.8 | ||||||
| 25 | 07:56 | SW 5 | 10.00 | Overcast | OVC065 | 36 | 19.9 | 52% | 33 | 29.71 | 1007.9 | ||||||
| 25 | 06:56 | S 6 | 10.00 | Overcast | BKN070 OVC090 | 36 | 19 | 36 | 32 | 50% | 32 | 29.71 | 1007.9 | ||||
| 25 | 05:56 | SW 5 | 10.00 | Mostly Cloudy | BKN070 | 35.1 | 19 | 52% | 32 | 29.71 | 1007.9 | ||||||
| 25 | 04:56 | Calm | 10.00 | Overcast | OVC110 | 34 | 18 | 52% | 29.71 | 1008.0 | |||||||
| 25 | 03:56 | SW 5 | 10.00 | Overcast | BKN080 OVC095 | 34 | 18 | 52% | 30 | 29.72 | 1008.2 | ||||||
| 25 | 02:56 | S 8 | 10.00 | Overcast | BKN075 OVC100 | 34 | 17.1 | 50% | 28 | 29.72 | 1008.3 | ||||||
| 25 | 01:56 | S 9 | 10.00 | Overcast | FEW060 OVC080 | 33.1 | 17.1 | 52% | 26 | 29.76 | 1009.7 | ||||||
| 25 | 00:56 | SW 7 | 10.00 | Overcast | SCT075 OVC090 | 33.1 | 17.1 | 33.1 | 30.9 | 52% | 28 | 29.83 | 1011.9 | ||||
| 24 | 23:56 | S 6 | 10.00 | Mostly Cloudy | BKN110 | 32 | 18 | 56% | 27 | 29.82 | 1012.0 | ||||||
| 24 | 22:56 | S 6 | 10.00 | Fair | CLR | 30.9 | 16 | 54% | 26 | 29.87 | 1013.4 | ||||||
| 24 | 21:56 | S 7 | 10.00 | Fair | CLR | 32 | 16 | 52% | 26 | 29.89 | 1014.0 | ||||||
| 24 | 20:56 | S 7 | 10.00 | Fair | CLR | 32 | 16 | 52% | 26 | 29.9 | 1014.6 | ||||||
| 24 | 19:56 | S 7 | 10.00 | Partly Cloudy | SCT110 | 33.1 | 14 | 45% | 28 | 29.92 | 1015.2 | ||||||
| 24 | 18:56 | S 3 | 10.00 | Fair | CLR | 30.9 | 17.1 | 36 | 30.9 | 56% | 29.93 | 1015.7 | |||||
| 24 | 17:56 | SW 3 | 10.00 | Fair | CLR | 35.1 | 12 | 38% | 29.92 | 1015.1 | |||||||
| 24 | 16:56 | SW 9 | 10.00 | Fair | CLR | 36 | 12.9 | 39% | 30 | 29.93 | 1015.6 | ||||||
| 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) | |||||||||||||||