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. | ||||||||||||||||
| 22 | 16:56 | S 13 G 20 | 10.00 | Fair | CLR | 82.9 | 51.1 | 33% | 81 | 29.64 | 1004.7 | ||||||
| 22 | 15:56 | S 12 | 10.00 | Fair | CLR | 82.9 | 51.1 | 33% | 81 | 29.67 | 1005.7 | ||||||
| 22 | 14:56 | S 9 | 10.00 | Fair | CLR | 82 | 51.1 | 34% | 81 | 29.71 | 1007.0 | ||||||
| 22 | 13:56 | S 7 | 10.00 | Fair | CLR | 77 | 50 | 78.1 | 46 | 39% | 78 | 29.76 | 1008.6 | ||||
| 22 | 12:56 | S 10 | 10.00 | Fair | CLR | 73 | 51.1 | 46% | 29.78 | 1009.4 | |||||||
| 22 | 11:56 | SE 7 | 10.00 | Fair | CLR | 69.1 | 51.1 | 53% | 29.81 | 1010.6 | |||||||
| 22 | 10:56 | Vrbl 6 | 10.00 | Fair | CLR | 63 | 50 | 63% | 29.83 | 1011.4 | |||||||
| 22 | 09:56 | S 8 | 10.00 | Fair | CLR | 57.9 | 48.9 | 72% | 29.85 | 1012.0 | |||||||
| 22 | 08:56 | SE 8 | 10.00 | Fair | CLR | 51.1 | 50 | 96% | 29.86 | 1012.5 | |||||||
| 22 | 07:56 | Calm | 10.00 | Fair | CLR | 46.4 | 0 | 53.1 | 45 | 0% | 29.88 | 1013.1 | |||||
| 22 | 06:56 | Calm | 10.00 | Fair | CLR | 46 | 46 | 100% | 29.87 | 1012.9 | |||||||
| 22 | 05:56 | E 3 | 10.00 | Fair | CLR | 46.9 | 46.9 | 100% | 29.87 | 1012.6 | |||||||
| 22 | 04:56 | SE 9 | 10.00 | Fair | CLR | 48.9 | 48.9 | 100% | 45 | 29.86 | 1012.3 | ||||||
| 22 | 03:56 | SE 5 | 10.00 | Fair | CLR | 50 | 48.9 | 96% | 49 | 29.89 | 1013.2 | ||||||
| 22 | 02:56 | S 7 | 10.00 | Fair | CLR | 52 | 48.9 | 89% | 29.9 | 1013.6 | |||||||
| 22 | 01:56 | S 9 | 10.00 | Fair | CLR | 53.1 | 48.9 | 61 | 53.1 | 86% | 29.93 | 1014.8 | |||||
| 22 | 00:56 | SE 9 | 10.00 | Overcast | OVC120 | 54 | 50 | 87% | 29.94 | 1015.2 | |||||||
| 21 | 23:56 | SE 8 | 10.00 | Fair | CLR | 55 | 42.1 | 62% | 29.93 | 1014.8 | |||||||
| 21 | 22:56 | E 5 | 10.00 | Fair | CLR | 55 | 39.9 | 57% | 29.94 | 1015.0 | |||||||
| 21 | 21:56 | E 5 | 10.00 | Fair | CLR | 55 | 39.9 | 57% | 29.94 | 1015.1 | |||||||
| 21 | 20:56 | E 6 | 10.00 | Fair | CLR | 57.9 | 41 | 53% | 29.93 | 1014.7 | |||||||
| 21 | 19:56 | E 5 | 10.00 | Fair | CLR | 62.1 | 41 | 70 | 62.1 | 46% | 29.9 | 1013.9 | |||||
| 21 | 18:56 | NE 3 | 10.00 | Fair | CLR | 64 | 41 | 43% | 29.89 | 1013.5 | |||||||
| 21 | 17:56 | SE 6 | 10.00 | Fair | CLR | 68 | 41 | 38% | 29.88 | 1013.1 | |||||||
| 21 | 16:56 | Calm | 10.00 | Fair | CLR | 68 | 42.1 | 39% | 29.88 | 1013.1 | |||||||
| 21 | 15:56 | Vrbl 3 | 10.00 | Fair | CLR | 66.9 | 43 | 42% | 29.9 | 1013.7 | |||||||
| 21 | 14:56 | Vrbl 3 | 10.00 | Fair | CLR | 66 | 44.1 | 45% | 29.92 | 1014.4 | |||||||
| 21 | 13:56 | Vrbl 5 | 10.00 | Fair | CLR | 66.9 | 45 | 66.9 | 45 | 45% | 29.93 | 1014.9 | |||||
| 21 | 12:56 | Vrbl 6 | 10.00 | Fair | CLR | 66 | 48 | 52% | 29.95 | 1015.4 | |||||||
| 21 | 11:56 | Vrbl 3 | 10.00 | Fair | CLR | 62.1 | 48 | 60% | 29.93 | 1014.6 | |||||||
| 21 | 10:56 | N 5 | 10.00 | Mostly Cloudy | BKN023 | 61 | 52 | 72% | 29.92 | 1014.4 | |||||||
| 21 | 09:56 | Vrbl 6 | 10.00 | Fair | CLR | 57.9 | 55 | 90% | 29.9 | 1013.8 | |||||||
| 21 | 08:56 | NW 3 | 10.00 | Fair | CLR | 53.6 | 0 | 0% | 29.88 | 1013.2 | |||||||
| 21 | 07:56 | NW 3 | 0.25 | Fog | VV002 | 44.6 | 0 | 54 | 45 | 0% | 29.85 | 1012.4 | |||||
| 21 | 06:56 | Calm | 1.00 | Fog/Mist | VV002 | 46.4 | 0 | 0% | 29.83 | 1011.6 | |||||||
| 21 | 05:56 | Calm | 10.00 | Mostly Cloudy | BKN065 | 48.2 | 0 | 0% | 29.81 | 1010.8 | |||||||
| 21 | 04:56 | W 5 | 2.00 | Fog/Mist | BKN075 | 46.4 | 0 | 0% | 45 | 29.79 | 1009.9 | ||||||
| 21 | 03:56 | Calm | 10.00 | Overcast | FEW060 BKN075 OVC090 | 50 | 0 | 0% | 29.78 | 1009.7 | |||||||
| 21 | 02:56 | Calm | 10.00 | Overcast | BKN065 OVC100 | 51.8 | 0 | 0% | 29.78 | 1009.8 | |||||||
| 21 | 01:56 | SW 5 | 10.00 | Light Rain | FEW070 BKN080 OVC100 | 54 | 54 | 57.9 | 53.1 | 100% | 29.78 | 1009.8 | 0.08 | 0.19 | |||
| 21 | 00:56 | Vrbl 7 | 10.00 | Light Rain | FEW065 OVC085 | 53.6 | 0 | 0% | 29.8 | 1010.3 | |||||||
| 20 | 23:56 | Vrbl 3 | 10.00 | Light Rain | SCT070 BKN095 OVC110 | 55 | 54 | 96% | 29.8 | 1010.5 | 0.09 | ||||||
| 20 | 22:56 | Calm | 10.00 | Overcast | OVC085 | 57 | 48.9 | 74% | 29.8 | 1010.2 | 0.01 | 0.02 | |||||
| 20 | 21:56 | S 7 | 10.00 | Light Rain | OVC075 | 57 | 51.1 | 81% | 29.8 | 1010.6 | |||||||
| 20 | 20:56 | S 6 | 10.00 | Light Rain | OVC080 | 55.9 | 53.1 | 90% | 29.81 | 1011.0 | 0.01 | ||||||
| 20 | 19:56 | S 5 | 10.00 | Light Rain | OVC070 | 55.9 | 55.9 | 72 | 55.9 | 100% | 29.84 | 1012.0 | 0.04 | 0.07 | |||
| 20 | 18:56 | W 3 | 9.00 | Light Rain | OVC070 | 57 | 54 | 90% | 29.85 | 1012.2 | 0.03 | ||||||
| 20 | 17:56 | W 17 G 28 | 10.00 | Light Rain | OVC075 | 64.9 | 44.1 | 47% | 29.82 | 1011.2 | |||||||
| 20 | 16:56 | S 8 | 10.00 | Overcast | FEW070 BKN090 OVC110 | 70 | 37.9 | 31% | 29.79 | 1010.2 | |||||||
| 20 | 15:56 | SW 16 G 22 | 10.00 | Fair | CLR | 70 | 37.9 | 31% | 29.84 | 1011.8 | |||||||
| 20 | 14:56 | S 13 | 10.00 | Fair | CLR | 69.1 | 39 | 33% | 29.88 | 1013.3 | |||||||
| 20 | 13:56 | S 13 G 17 | 10.00 | Fair | CLR | 68 | 39.9 | 69.1 | 39 | 36% | 29.94 | 1015.1 | |||||
| 20 | 12:56 | SW 9 | 10.00 | Fair | CLR | 66.9 | 37.9 | 35% | 29.99 | 1016.7 | |||||||
| 20 | 11:56 | SW 9 | 10.00 | Fair | CLR | 64 | 37 | 37% | 30.03 | 1018.1 | |||||||
| 20 | 10:56 | S 7 | 10.00 | Fair | CLR | 57.9 | 36 | 44% | 30.05 | 1019.2 | |||||||
| 20 | 09:56 | SW 8 | 10.00 | Fair | CLR | 52 | 35.1 | 53% | 30.09 | 1020.3 | |||||||
| 20 | 08:56 | S 6 | 10.00 | Fair | CLR | 45 | 36 | 71% | 42 | 30.11 | 1021.2 | ||||||
| 20 | 07:56 | SE 5 | 10.00 | Fair | CLR | 39 | 36 | 43 | 37 | 89% | 36 | 30.12 | 1021.5 | ||||
| 20 | 06:56 | SE 3 | 10.00 | Fair | CLR | 37.9 | 34 | 86% | 30.11 | 1021.3 | |||||||
| 20 | 05:56 | S 5 | 10.00 | Fair | CLR | 39.9 | 34 | 79% | 37 | 30.12 | 1021.3 | ||||||
| 20 | 04:56 | S 3 | 10.00 | Fair | CLR | 39.9 | 34 | 79% | 30.12 | 1021.3 | |||||||
| 20 | 03:56 | S 5 | 10.00 | Fair | CLR | 41 | 34 | 76% | 38 | 30.12 | 1021.5 | ||||||
| 20 | 02:56 | SE 3 | 10.00 | Fair | CLR | 41 | 33.1 | 73% | 30.15 | 1022.5 | |||||||
| 20 | 01:56 | S 5 | 10.00 | Fair | CLR | 43 | 32 | 50 | 43 | 65% | 41 | 30.17 | 1023.3 | ||||
| 20 | 00:56 | S 6 | 10.00 | A Few Clouds | FEW065 | 44.1 | 32 | 63% | 41 | 30.18 | 1023.5 | ||||||
| 19 | 23:56 | Calm | 10.00 | Fair | CLR | 45 | 30.9 | 58% | 30.18 | 1023.7 | |||||||
| 19 | 22:56 | SE 5 | 10.00 | Fair | CLR | 45 | 32 | 61% | 43 | 30.17 | 1023.3 | ||||||
| 19 | 21:56 | SE 3 | 10.00 | Fair | CLR | 46 | 30.9 | 56% | 30.18 | 1023.6 | |||||||
| 19 | 20:56 | SE 6 | 10.00 | Fair | CLR | 48.9 | 30 | 48% | 47 | 30.16 | 1023.0 | ||||||
| 19 | 19:56 | SE 7 | 10.00 | A Few Clouds | FEW100 | 50 | 30 | 57.9 | 50 | 46% | 48 | 30.15 | 1022.7 | ||||
| 19 | 18:56 | SW 3 | 10.00 | Fair | CLR | 55 | 30.9 | 40% | 30.15 | 1022.6 | |||||||
| 19 | 17:56 | Calm | 10.00 | Fair | CLR | 57.9 | 30.9 | 36% | 30.15 | 1022.3 | |||||||
| 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) | |||||||||||||||