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. | ||||||||||||||||
| 17 | 17:56 | Calm | 4.00 | Overcast with Haze | OVC032 | 84.9 | 66.9 | 55% | 88 | 30.05 | 1018.4 | ||||||
| 17 | 16:56 | Vrbl 3 | 3.00 | Overcast with Haze | OVC032 | 87.1 | 66.9 | 51% | 90 | 30.07 | 1018.9 | ||||||
| 17 | 15:56 | Calm | 3.00 | Overcast with Haze | OVC030 | 86 | 66.9 | 53% | 89 | 30.08 | 1019.3 | ||||||
| 17 | 14:56 | Calm | 3.00 | Overcast with Haze | OVC028 | 86 | 68 | 55% | 89 | 30.1 | 1019.9 | ||||||
| 17 | 13:56 | Calm | 3.00 | Overcast with Haze | BKN025 OVC030 | 84 | 66 | 87.1 | 72 | 55% | 86 | 30.1 | 1020.1 | ||||
| 17 | 12:56 | Vrbl 3 | 3.00 | Overcast with Haze | BKN026 OVC031 | 86 | 66.9 | 53% | 89 | 30.11 | 1020.5 | ||||||
| 17 | 11:56 | Calm | 3.00 | Overcast with Haze | BKN027 OVC031 | 86 | 64.9 | 49% | 88 | 30.11 | 1020.5 | ||||||
| 17 | 10:56 | Calm | 3.00 | Overcast with Haze | OVC029 | 82.9 | 60.1 | 46% | 83 | 30.11 | 1020.3 | ||||||
| 17 | 09:56 | Calm | 3.00 | Overcast with Haze | BKN030 BKN035 OVC044 | 81 | 62.1 | 53% | 82 | 30.1 | 1020.2 | ||||||
| 17 | 08:56 | Calm | 2.50 | Overcast with Haze | FEW027 BKN033 OVC043 | 77 | 61 | 58% | 79 | 30.11 | 1020.5 | ||||||
| 17 | 07:56 | Calm | 1.50 | Overcast with Haze | SCT033 OVC041 | 72 | 64 | 73.9 | 66 | 76% | 30.1 | 1020.1 | |||||
| 17 | 06:56 | Calm | 1.50 | Fog/Mist | SCT035 OVC043 | 66 | 63 | 90% | 30.09 | 1019.7 | |||||||
| 17 | 05:56 | Calm | 1.25 | Fog/Mist | OVC042 | 66 | 63 | 90% | 30.07 | 1019.2 | |||||||
| 17 | 04:56 | Calm | 2.50 | Overcast with Haze | OVC040 | 70 | 57 | 64% | 30.06 | 1018.8 | |||||||
| 17 | 03:56 | Calm | 2.50 | Overcast with Haze | OVC036 | 73.9 | 57 | 56% | 30.05 | 1018.2 | |||||||
| 17 | 02:56 | Calm | 2.50 | Overcast with Haze | OVC045 | 71.1 | 62.1 | 73% | 30.04 | 1018.2 | |||||||
| 17 | 01:56 | Calm | 2.50 | Overcast with Haze | OVC033 | 73 | 60.1 | 88 | 73 | 64% | 30.03 | 1017.8 | |||||
| 17 | 00:56 | Calm | 2.50 | Overcast with Haze | OVC032 | 75.9 | 61 | 60% | 78 | 30.03 | 1017.6 | ||||||
| 16 | 23:56 | Calm | 3.00 | Overcast with Haze | BKN032 OVC043 | 79 | 66.9 | 67% | 81 | 30.02 | 1017.1 | ||||||
| 16 | 22:56 | Calm | 6.00 | Overcast with Haze | OVC039 | 79 | 72 | 79% | 82 | 30 | 1016.5 | ||||||
| 16 | 21:56 | Calm | 9.00 | Overcast | OVC039 | 82 | 73.9 | 77% | 88 | 29.97 | 1015.7 | ||||||
| 16 | 20:56 | Calm | 10.00 | Mostly Cloudy | BKN060 | 84.9 | 75.9 | 75% | 94 | 29.95 | 1014.9 | ||||||
| 16 | 19:56 | Calm | 10.00 | A Few Clouds | FEW070 | 88 | 75.9 | 95 | 88 | 68% | 99 | 29.94 | 1014.5 | ||||
| 16 | 18:56 | W 7 | 10.00 | A Few Clouds | FEW070 | 91 | 75 | 59% | 102 | 29.93 | 1014.1 | ||||||
| 16 | 17:56 | W 9 | 10.00 | Fair | CLR | 93 | 75 | 56% | 104 | 29.92 | 1013.8 | ||||||
| 16 | 16:56 | W 8 | 9.00 | Fair | CLR | 93.9 | 73.9 | 52% | 104 | 29.93 | 1014.1 | ||||||
| 16 | 15:56 | W 9 | 5.00 | Fair with Haze | CLR | 93.9 | 73.9 | 52% | 104 | 29.94 | 1014.4 | ||||||
| 16 | 14:56 | NW 8 | 5.00 | Fair with Haze | CLR | 93 | 75.9 | 58% | 106 | 29.94 | 1014.6 | ||||||
| 16 | 13:56 | W 6 | 5.00 | A Few Clouds with Haze | FEW037 | 91.9 | 77 | 91.9 | 80.1 | 62% | 106 | 29.96 | 1015.4 | ||||
| 16 | 12:56 | W 9 | 9.00 | Fair | CLR | 90 | 77 | 66% | 103 | 29.98 | 1015.9 | ||||||
| 16 | 11:56 | Vrbl 5 | 10.00 | Fair | CLR | 89.1 | 77 | 68% | 102 | 29.99 | 1016.2 | ||||||
| 16 | 10:56 | W 8 | 10.00 | Fair | CLR | 86 | 75.9 | 72% | 96 | 29.99 | 1016.4 | ||||||
| 16 | 09:56 | NW 8 | 10.00 | Fair | CLR | 84 | 75.9 | 77% | 93 | 29.99 | 1016.4 | ||||||
| 16 | 08:56 | NW 5 | 10.00 | Fair | CLR | 82 | 77 | 85% | 90 | 30 | 1016.5 | ||||||
| 16 | 07:56 | Calm | 10.00 | Fair | CLR | 80.1 | 75.9 | 80.1 | 75 | 87% | 85 | 30 | 1016.5 | ||||
| 16 | 06:56 | NW 3 | 10.00 | Fair | CLR | 77 | 77 | 100% | 78 | 29.99 | 1016.4 | ||||||
| 16 | 05:56 | Calm | 10.00 | Overcast | OVC065 | 75 | 75 | 100% | 72 | 29.98 | 1016.1 | ||||||
| 16 | 04:56 | Calm | 10.00 | Mostly Cloudy | BKN070 | 75.9 | 75.9 | 100% | 75 | 29.99 | 1016.2 | ||||||
| 16 | 03:56 | Calm | 10.00 | Fair | CLR | 75.9 | 75.9 | 100% | 75 | 29.99 | 1016.2 | ||||||
| 16 | 02:56 | W 5 | 10.00 | A Few Clouds | FEW075 | 78.1 | 75 | 90% | 81 | 29.99 | 1016.1 | ||||||
| 16 | 01:56 | NW 3 | 10.00 | Fair | CLR | 78.1 | 75.9 | 89.1 | 78.1 | 93% | 81 | 29.98 | 1015.8 | ||||
| 16 | 00:56 | W 5 | 10.00 | Fair | CLR | 79 | 77 | 94% | 83 | 29.98 | 1015.9 | ||||||
| 15 | 23:56 | W 5 | 10.00 | Fair | CLR | 80.1 | 77 | 90% | 86 | 29.98 | 1015.9 | ||||||
| 15 | 22:56 | NW 5 | 10.00 | Fair | CLR | 81 | 77 | 88% | 88 | 29.97 | 1015.7 | ||||||
| 15 | 21:56 | W 5 | 10.00 | Fair | CLR | 84 | 73.9 | 72% | 91 | 29.96 | 1015.4 | ||||||
| 15 | 20:56 | W 6 | 10.00 | Fair | CLR | 86 | 73 | 65% | 93 | 29.95 | 1014.9 | ||||||
| 15 | 19:56 | W 7 | 10.00 | Fair | CLR | 89.1 | 73.9 | 95 | 89.1 | 61% | 98 | 29.94 | 1014.4 | ||||
| 15 | 18:56 | W 6 | 10.00 | Fair | CLR | 91 | 73.9 | 57% | 101 | 29.92 | 1014.0 | ||||||
| 15 | 17:56 | SW 9 | 9.00 | Fair | CLR | 93.9 | 73.9 | 52% | 104 | 29.92 | 1013.9 | ||||||
| 15 | 16:56 | SW 8 | 10.00 | Fair | CLR | 93.9 | 75 | 54% | 106 | 29.94 | 1014.5 | ||||||
| 15 | 15:56 | W 6 G 16 | 10.00 | Fair | CLR | 91.9 | 75 | 58% | 103 | 29.95 | 1015.1 | ||||||
| 15 | 14:56 | W 8 | 10.00 | Fair | CLR | 91.9 | 75 | 58% | 103 | 29.97 | 1015.7 | ||||||
| 15 | 13:56 | W 8 | 8.00 | Fair | CLR | 93 | 75 | 93 | 75.9 | 56% | 104 | 29.99 | 1016.2 | ||||
| 15 | 12:56 | W 12 G 17 | 10.00 | Fair | CLR | 90 | 75 | 62% | 100 | 30.01 | 1016.9 | ||||||
| 15 | 11:56 | W 8 | 10.00 | Fair | CLR | 88 | 75 | 66% | 98 | 30.03 | 1017.7 | ||||||
| 15 | 10:56 | W 10 | 10.00 | Fair | CLR | 86 | 73 | 65% | 93 | 30.03 | 1017.9 | ||||||
| 15 | 09:56 | W 9 | 10.00 | Fair | CLR | 82.9 | 73 | 72% | 89 | 30.04 | 1018.2 | ||||||
| 15 | 08:56 | W 7 | 10.00 | Fair | CLR | 80.1 | 73 | 79% | 84 | 30.05 | 1018.5 | ||||||
| 15 | 07:56 | W 5 | 10.00 | Fair | CLR | 75.9 | 73 | 75.9 | 68 | 91% | 76 | 30.05 | 1018.4 | ||||
| 15 | 06:56 | W 3 | 10.00 | Fair | CLR | 69.8 | 0 | 0% | 30.05 | 1018.3 | |||||||
| 15 | 05:56 | Calm | 10.00 | Fair | CLR | 68 | 0 | 0% | 30.04 | 1017.9 | |||||||
| 15 | 04:56 | NW 5 | 10.00 | Fair | CLR | 71.1 | 71.1 | 100% | 30.02 | 1017.4 | |||||||
| 15 | 03:56 | W 5 | 10.00 | Fair | CLR | 72 | 71.1 | 97% | 30.02 | 1017.3 | |||||||
| 15 | 02:56 | W 5 | 10.00 | Fair | CLR | 73 | 70 | 90% | 30.03 | 1017.6 | |||||||
| 15 | 01:56 | NW 3 | 10.00 | Fair | CLR | 72 | 71.1 | 84.9 | 72 | 97% | 30.04 | 1018.1 | |||||
| 15 | 00:56 | W 3 | 10.00 | Fair | CLR | 75 | 70 | 84% | 75 | 30.05 | 1018.4 | ||||||
| 14 | 23:56 | W 3 | 10.00 | Fair | CLR | 75 | 70 | 84% | 75 | 30.06 | 1018.7 | ||||||
| 14 | 22:56 | Calm | 10.00 | Fair | CLR | 75 | 72 | 90% | 74 | 30.06 | 1018.8 | ||||||
| 14 | 21:56 | W 3 | 10.00 | Fair | CLR | 81 | 69.1 | 67% | 84 | 30.06 | 1018.8 | ||||||
| 14 | 20:56 | Vrbl 5 | 10.00 | Fair | CLR | 82.9 | 69.1 | 63% | 87 | 30.06 | 1018.8 | ||||||
| 14 | 19:56 | W 5 | 10.00 | Fair | CLR | 84 | 69.1 | 91 | 84 | 61% | 88 | 30.07 | 1019.1 | ||||
| 14 | 18:56 | Vrbl 6 | 10.00 | Fair | CLR | 86 | 70 | 59% | 91 | 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) | |||||||||||||||