Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (edt) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Temperature (ºC) | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | Pressure | Precipitation (cm) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 12 | 22:56 | W 9 | 16.09 | Fair | CLR | 14 | 0 | 0% | 76.15 | 1016.5 | |||||||
| 12 | 21:56 | Calm | 16.09 | Fair | CLR | 15.6 | 15.6 | 100% | 76.1 | 1016.0 | |||||||
| 12 | 20:56 | NW 6 | 16.09 | Fair | CLR | 15.6 | 15.6 | 100% | 76.1 | 1015.7 | |||||||
| 12 | 19:56 | Calm | 16.09 | Fair | CLR | 17.2 | 16.1 | 22.8 | 17.2 | 93% | 76.07 | 1015.5 | |||||
| 12 | 18:56 | NW 6 | 12.87 | Fair | CLR | 18.3 | 16.1 | 87% | 76.02 | 1014.9 | |||||||
| 12 | 17:56 | NW 19 | 16.09 | Fair | CLR | 21.1 | 15 | 68% | 76.02 | 1014.8 | |||||||
| 12 | 16:56 | NW 13 | 16.09 | Mostly Cloudy | BKN036 | 22.2 | 15.6 | 66% | 76.02 | 1014.5 | |||||||
| 12 | 15:56 | Vrbl 11 | 16.09 | Overcast | OVC036 | 22.8 | 16.1 | 66% | 76 | 1014.3 | |||||||
| 12 | 14:56 | NW 22 | 16.09 | Mostly Cloudy | BKN030 | 22.8 | 16.1 | 66% | 76.02 | 1014.6 | |||||||
| 12 | 13:56 | NW 17 | 16.09 | Overcast | OVC030 | 22.2 | 16.1 | 22.8 | 13.9 | 68% | 76.05 | 1014.9 | |||||
| 12 | 12:56 | Vrbl 11 | 16.09 | Mostly Cloudy | BKN030 | 22.8 | 16.1 | 66% | 76.07 | 1015.2 | |||||||
| 12 | 11:56 | NW 19 G 31 | 16.09 | Mostly Cloudy | BKN026 | 21.1 | 16.1 | 73% | 76.05 | 1015.1 | |||||||
| 12 | 10:56 | NW 13 | 16.09 | Mostly Cloudy | BKN022 | 18.9 | 16.1 | 84% | 76.02 | 1014.6 | |||||||
| 12 | 09:56 | NW 11 | 16.09 | Overcast | OVC025 | 16.1 | 16.1 | 100% | 76 | 1014.5 | |||||||
| 12 | 08:56 | NW 9 | 16.09 | Overcast | FEW005 SCT025 OVC032 | 15 | 15 | 100% | 75.95 | 1013.8 | |||||||
| 12 | 06:56 | Vrbl 6 | 16.09 | Overcast | BKN008 OVC055 | 13.9 | 13.9 | 100% | 75.82 | 1012.1 | |||||||
| 12 | 05:56 | Vrbl 9 | 16.09 | Overcast | BKN010 OVC055 | 14.4 | 14.4 | 100% | 75.74 | 1011.1 | |||||||
| 12 | 04:56 | Vrbl 7 | 16.09 | Light Rain | OVC007 | 14.4 | 14.4 | 100% | 75.67 | 1010.2 | 0.15 | 0.2 | |||||
| 12 | 03:56 | NW 11 | 6.44 | Light Rain Fog/Mist | OVC005 | 14.4 | 14.4 | 100% | 75.59 | 1009.1 | 0.05 | ||||||
| 12 | 02:56 | Calm | 9.66 | Fog/Mist | OVC007 | 14.4 | 14.4 | 100% | 75.57 | 1008.8 | |||||||
| 12 | 01:56 | Vrbl 6 | 16.09 | Overcast | OVC007 | 15 | 0 | 17.2 | 15 | 0% | 75.59 | 1008.9 | 0.36 | ||||
| 12 | 00:56 | Calm | 16.09 | Overcast | OVC007 | 15.6 | 15.6 | 100% | 75.57 | 1008.7 | |||||||
| 11 | 23:56 | Calm | 16.09 | Overcast | OVC005 | 15.6 | 15.6 | 100% | 75.64 | 1009.6 | 0.05 | ||||||
| 11 | 22:56 | Calm | 8.05 | Light Rain Fog/Mist | OVC005 | 17.2 | 17.2 | 100% | 75.69 | 1010.3 | 0.3 | 0.3 | |||||
| 11 | 21:56 | Calm | 16.09 | Overcast | OVC003 | 17.2 | 17.2 | 100% | 75.69 | 1010.3 | |||||||
| 11 | 20:56 | Vrbl 6 | 12.87 | Overcast | OVC003 | 17.2 | 17.2 | 100% | 75.72 | 1010.8 | |||||||
| 11 | 19:56 | Calm | 6.44 | Light Rain Fog/Mist | OVC005 | 16.1 | 16.1 | 17.8 | 16.1 | 100% | 75.77 | 1011.2 | 0.03 | 0.36 | |||
| 11 | 18:56 | Calm | 16.09 | Light Rain | OVC005 | 16.1 | 16.1 | 100% | 75.82 | 1012.0 | 0.03 | ||||||
| 11 | 17:56 | Calm | 11.27 | Light Rain | OVC005 | 16.7 | 16.7 | 100% | 75.84 | 1012.5 | 0.08 | ||||||
| 11 | 16:56 | Vrbl 6 | 4.02 | Light Rain Fog/Mist | OVC005 | 17.8 | 17.8 | 100% | 75.92 | 1013.3 | 0.05 | 0.23 | |||||
| 11 | 15:56 | Vrbl 6 | 2.82 | Light Rain Fog/Mist | OVC005 | 17.8 | 17.8 | 100% | 75.97 | 1014.0 | 0.05 | ||||||
| 11 | 14:56 | Vrbl 7 | 4.83 | Light Rain Fog/Mist | OVC005 | 16.7 | 16.7 | 100% | 76.02 | 1014.8 | 0.13 | ||||||
| 11 | 13:56 | Vrbl 7 | 4.02 | Light Rain Fog/Mist | BKN005 OVC022 | 16.1 | 16.1 | 16.1 | 15.6 | 100% | 76.12 | 1016.1 | 0.43 | 3.61 | |||
| 11 | 12:56 | Vrbl 7 | 8.05 | Light Rain Fog/Mist | OVC005 | 16.1 | 16.1 | 100% | 76.25 | 1017.7 | 0.08 | ||||||
| 11 | 11:56 | Vrbl 11 | 4.83 | Light Rain Fog/Mist | OVC007 | 15.6 | 15.6 | 100% | 76.35 | 1019.3 | 0.48 | ||||||
| 11 | 10:56 | Vrbl 11 | 4.02 | Rain Fog/Mist | BKN007 OVC010 | 15.6 | 15.6 | 100% | 76.48 | 1020.8 | 1.24 | 2.62 | |||||
| 11 | 09:56 | Calm | 3.22 | Heavy Rain Fog/Mist | OVC007 | 15.6 | 15.6 | 100% | 76.61 | 1022.5 | 0.97 | ||||||
| 11 | 08:56 | Vrbl 6 | 4.83 | Heavy Rain Fog/Mist | OVC007 | 15.6 | 15.6 | 100% | 76.61 | 1022.5 | 0.41 | ||||||
| 11 | 06:56 | Vrbl 11 | 6.44 | Heavy Rain Fog/Mist | OVC007 | 15 | 15 | 100% | 76.71 | 1023.9 | 0.58 | ||||||
| 11 | 05:56 | Vrbl 7 | 6.44 | Rain | BKN007 OVC014 | 14 | 0 | 0% | 76.76 | 1024.5 | 0.51 | ||||||
| 11 | 04:56 | Vrbl 6 | 8.05 | Rain | SCT022 BKN028 OVC050 | 14 | 0 | 0% | 76.78 | 1025.1 | 0.41 | 0.61 | |||||
| 11 | 03:56 | Calm | 16.09 | Rain | BKN027 BKN033 OVC055 | 15 | 15 | 100% | 76.86 | 1026.0 | 0.2 | ||||||
| 11 | 02:56 | Vrbl 6 | 16.09 | Light Rain | BKN080 OVC100 | 15.6 | 15 | 96% | 76.91 | 1026.7 | |||||||
| 11 | 01:56 | Vrbl 7 | 16.09 | Overcast | OVC085 | 15.6 | 15 | 17.2 | 15.6 | 96% | 76.99 | 1027.6 | |||||
| 11 | 00:56 | Vrbl 6 | 16.09 | Overcast | OVC090 | 15.6 | 15 | 96% | 77.04 | 1028.3 | |||||||
| 10 | 23:56 | Vrbl 6 | 16.09 | Light Rain | OVC095 | 16.7 | 13.3 | 80% | 77.11 | 1029.0 | |||||||
| 10 | 22:56 | Vrbl 6 | 16.09 | Overcast | FEW047 OVC100 | 16.7 | 12.8 | 78% | 77.14 | 1029.5 | |||||||
| 10 | 21:56 | Vrbl 6 | 16.09 | Overcast | OVC100 | 16.7 | 12.2 | 75% | 77.14 | 1029.9 | |||||||
| 10 | 20:56 | E 6 | 16.09 | Overcast | FEW044 OVC110 | 16.7 | 11.1 | 70% | 77.14 | 1029.5 | |||||||
| 10 | 19:56 | Vrbl 6 | 16.09 | Mostly Cloudy | SCT048 BKN120 | 17.2 | 9.4 | 20.6 | 16.7 | 60% | 77.14 | 1029.6 | |||||
| 10 | 18:56 | Vrbl 6 | 16.09 | Fair | CLR | 17.8 | 10 | 60% | 77.09 | 1029.2 | |||||||
| 10 | 17:56 | Calm | 16.09 | A Few Clouds | FEW110 | 18.3 | 11.1 | 63% | 77.11 | 1029.3 | |||||||
| 10 | 16:56 | Calm | 16.09 | A Few Clouds | FEW110 | 18.9 | 11.7 | 63% | 77.14 | 1029.8 | |||||||
| 10 | 15:56 | Calm | 16.09 | Fair | CLR | 20 | 10.6 | 55% | 77.19 | 1030.2 | |||||||
| 10 | 14:56 | Vrbl 9 | 16.09 | Fair | CLR | 20 | 10.6 | 55% | 77.17 | 1030.1 | |||||||
| 10 | 13:56 | Vrbl 6 | 16.09 | Fair | CLR | 20 | 11.7 | 21.1 | 13.3 | 59% | 77.24 | 1031.2 | |||||
| 10 | 12:56 | Vrbl 9 | 16.09 | Fair | CLR | 21.1 | 10 | 49% | 77.24 | 1031.2 | |||||||
| 10 | 11:56 | Calm | 16.09 | Fair | CLR | 20.6 | 11.1 | 55% | 77.32 | 1032.2 | |||||||
| 10 | 10:56 | Vrbl 6 | 16.09 | Fair | CLR | 18.3 | 11.7 | 66% | 77.32 | 1032.1 | |||||||
| 10 | 09:56 | Calm | 16.09 | Fair | CLR | 16.1 | 10.6 | 70% | 77.27 | 1031.4 | |||||||
| 10 | 08:56 | Calm | 16.09 | Fair | CLR | 13.3 | 10.6 | 84% | 77.19 | 1030.6 | |||||||
| 10 | 07:56 | Calm | 16.09 | Fair | CLR | 9.4 | 9.4 | 10.6 | 8.9 | 100% | 77.22 | 1030.9 | |||||
| 10 | 06:56 | Calm | 16.09 | Fair | CLR | 9.4 | 9.4 | 100% | 77.14 | 1030.0 | |||||||
| 10 | 04:56 | Calm | 16.09 | Fair | CLR | 9.4 | 9.4 | 100% | 77.01 | 1027.9 | |||||||
| 10 | 03:56 | Calm | 16.09 | Fair | CLR | 9.4 | 9.4 | 100% | 76.99 | 1027.6 | |||||||
| 10 | 02:56 | Calm | 16.09 | Fair | CLR | 10 | 10 | 100% | 77.01 | 1028.1 | |||||||
| 10 | 01:56 | Calm | 16.09 | Fair | CLR | 10 | 10 | 14.4 | 10 | 100% | 77.01 | 1028.0 | |||||
| 10 | 00:56 | Calm | 16.09 | Fair | CLR | 10.6 | 10.6 | 100% | 76.99 | 1027.6 | |||||||
| 09 | 23:56 | Calm | 16.09 | Fair | CLR | 11.1 | 11.1 | 100% | 76.96 | 1027.5 | |||||||
| Date | Time (edt) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºC) | Pressure | Precipitation (cm) | |||||||||||||||