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. | ||||||||||||||||
| 31 | 15:56 | S 19 G 30 | 16.09 | Mostly Cloudy | BKN065 | 27.2 | 12.8 | 41% | 27 | 76.2 | 1016.8 | ||||||
| 31 | 14:56 | SW 20 G 31 | 16.09 | A Few Clouds | FEW060 | 27.2 | 12.8 | 41% | 27 | 76.28 | 1017.8 | ||||||
| 31 | 13:56 | SW 22 G 35 | 16.09 | Fair | CLR | 27.2 | 12.8 | 27.2 | 16.7 | 41% | 27 | 76.35 | 1018.9 | ||||
| 31 | 10:56 | SW 24 G 31 | 16.09 | Fair | CLR | 22.2 | 11.1 | 50% | 76.5 | 1020.8 | |||||||
| 31 | 09:56 | SW 19 G 28 | 16.09 | Fair | CLR | 20 | 10.6 | 55% | 76.53 | 1021.4 | |||||||
| 31 | 08:56 | SW 13 | 16.09 | Fair | CLR | 17.8 | 10.6 | 63% | 76.56 | 1021.8 | |||||||
| 31 | 07:56 | SW 11 | 16.09 | Fair | CLR | 16.7 | 10 | 17.8 | 15.6 | 65% | 76.56 | 1022.0 | |||||
| 31 | 06:56 | Vrbl 6 | 16.09 | Fair | CLR | 15.6 | 10 | 70% | 76.56 | 1021.7 | |||||||
| 31 | 05:56 | SW 13 | 16.09 | Fair | CLR | 16.1 | 10 | 67% | 76.5 | 1021.2 | |||||||
| 31 | 04:56 | SW 15 G 26 | 16.09 | Fair | CLR | 16.1 | 10 | 67% | 76.45 | 1020.4 | |||||||
| 31 | 03:56 | SW 11 | 16.09 | Fair | CLR | 16.7 | 10 | 65% | 76.45 | 1020.5 | |||||||
| 31 | 02:56 | SW 11 G 28 | 16.09 | Fair | CLR | 17.2 | 10 | 63% | 76.48 | 1020.6 | |||||||
| 31 | 01:56 | SW 17 G 30 | 16.09 | Fair | CLR | 17.8 | 10 | 18.9 | 17.8 | 60% | 76.5 | 1021.2 | |||||
| 31 | 00:56 | SW 22 G 35 | 16.09 | Fair | CLR | 17.8 | 10 | 60% | 76.53 | 1021.5 | |||||||
| 30 | 23:56 | SW 11 G 26 | 16.09 | Fair | CLR | 18.3 | 10.6 | 61% | 76.56 | 1022.0 | |||||||
| 30 | 22:56 | SW 15 | 16.09 | Fair | CLR | 18.3 | 10.6 | 61% | 76.61 | 1022.6 | |||||||
| 30 | 21:56 | SW 13 G 26 | 16.09 | Fair | CLR | 18.3 | 10.6 | 61% | 76.63 | 1022.8 | |||||||
| 30 | 20:56 | SW 17 G 28 | 16.09 | A Few Clouds | FEW120 | 18.3 | 10.6 | 61% | 76.61 | 1022.4 | |||||||
| 30 | 19:56 | SW 17 G 33 | 16.09 | Fair | CLR | 18.9 | 10.6 | 21.1 | 17.2 | 59% | 76.58 | 1022.3 | |||||
| 30 | 18:56 | SW 17 G 31 | 16.09 | Partly Cloudy | SCT100 | 20 | 10.6 | 55% | 76.58 | 1022.4 | |||||||
| 30 | 17:56 | SW 22 G 31 | 16.09 | Partly Cloudy | SCT100 | 20 | 10.6 | 55% | 76.58 | 1022.2 | |||||||
| 30 | 16:56 | SW 20 G 30 | 16.09 | Mostly Cloudy | SCT080 BKN110 | 21.1 | 10 | 49% | 76.58 | 1022.3 | |||||||
| 30 | 15:56 | SW 19 G 33 | 16.09 | A Few Clouds | FEW100 | 20.6 | 10 | 51% | 76.63 | 1023.0 | |||||||
| 30 | 14:56 | SW 22 G 31 | 16.09 | Fair | CLR | 19.4 | 9.4 | 53% | 76.71 | 1023.9 | |||||||
| 30 | 13:56 | SW 24 G 35 | 16.09 | Overcast | OVC095 | 17.2 | 8.3 | 17.8 | 10 | 56% | 76.78 | 1024.9 | 0.1 | ||||
| 30 | 12:56 | SW 19 | 16.09 | Partly Cloudy | SCT110 | 16.1 | 8.9 | 63% | 76.84 | 1025.7 | |||||||
| 30 | 11:56 | SW 24 G 30 | 16.09 | Mostly Cloudy | BKN110 | 13.9 | 9.4 | 74% | 76.91 | 1026.7 | |||||||
| 30 | 10:56 | SW 15 | 16.09 | Overcast | OVC085 | 12.8 | 9.4 | 80% | 76.94 | 1027.3 | 0.1 | ||||||
| 30 | 09:56 | SW 11 | 16.09 | Overcast | BKN070 OVC080 | 11.1 | 9.4 | 89% | 76.96 | 1027.5 | 0.03 | ||||||
| 30 | 08:56 | SW 9 | 14.48 | Rain | OVC075 | 10 | 8.3 | 89% | 9 | 76.96 | 1027.7 | 0.08 | |||||
| 30 | 07:56 | SW 15 G 28 | 16.09 | Light Rain | BKN075 OVC100 | 11.1 | 5 | 12.8 | 11.1 | 66% | 76.96 | 1027.6 | |||||
| 30 | 06:56 | Vrbl 11 | 16.09 | Overcast | OVC100 | 11.7 | 2.8 | 55% | 76.91 | 1026.7 | |||||||
| 30 | 05:56 | SW 13 | 16.09 | Fair | CLR | 11.1 | 2.2 | 55% | 76.89 | 1026.4 | |||||||
| 30 | 04:56 | S 11 | 16.09 | A Few Clouds | FEW110 | 11.1 | 0.6 | 49% | 76.86 | 1026.2 | |||||||
| 30 | 03:56 | S 11 | 16.09 | A Few Clouds | FEW110 | 11.7 | -1.1 | 41% | 76.86 | 1026.1 | |||||||
| 30 | 02:56 | S 13 | 16.09 | A Few Clouds | FEW120 | 12.8 | -2.2 | 36% | 76.94 | 1026.8 | |||||||
| 30 | 01:56 | S 17 | 16.09 | Fair | CLR | 12.8 | -6.1 | 13.3 | 11.7 | 26% | 76.94 | 1026.9 | |||||
| 30 | 00:56 | S 13 | 16.09 | Partly Cloudy | SCT120 | 13.3 | -7.8 | 22% | 76.96 | 1027.5 | |||||||
| 29 | 23:56 | S 15 G 26 | 16.09 | Mostly Cloudy | BKN120 | 13.3 | -7.2 | 24% | 77.04 | 1028.3 | |||||||
| 29 | 22:56 | S 13 | 16.09 | Fair | CLR | 12.8 | -4.4 | 30% | 77.06 | 1028.9 | |||||||
| 29 | 21:56 | S 15 | 16.09 | Fair | CLR | 12.2 | -2.8 | 35% | 77.09 | 1029.3 | |||||||
| 29 | 20:56 | SE 13 | 16.09 | A Few Clouds | FEW120 | 12.2 | -2.8 | 35% | 77.09 | 1029.2 | |||||||
| 29 | 19:56 | S 15 | 16.09 | Fair | CLR | 12.8 | -3.3 | 16.7 | 12.8 | 33% | 77.09 | 1029.6 | |||||
| 29 | 18:56 | S 17 | 16.09 | Fair | CLR | 14.4 | -3.3 | 29% | 77.11 | 1029.8 | |||||||
| 29 | 17:56 | S 19 | 16.09 | Fair | CLR | 16.1 | -3.3 | 26% | 77.11 | 1029.8 | |||||||
| 29 | 16:56 | S 24 G 33 | 16.09 | Fair | CLR | 16.7 | -2.8 | 26% | 77.14 | 1030.0 | |||||||
| 29 | 15:56 | S 30 G 39 | 16.09 | Fair | CLR | 16.7 | -3.3 | 25% | 77.22 | 1030.9 | |||||||
| 29 | 14:56 | S 22 G 31 | 16.09 | Fair | CLR | 15.6 | -3.3 | 27% | 77.27 | 1031.9 | |||||||
| 29 | 13:56 | S 19 G 39 | 16.09 | Fair | CLR | 14.4 | -3.9 | 15 | -0.6 | 28% | 77.39 | 1033.5 | |||||
| 29 | 12:56 | SW 19 G 31 | 16.09 | Fair | CLR | 13.9 | -5 | 27% | 77.5 | 1034.7 | |||||||
| 29 | 11:56 | S 22 G 37 | 16.09 | Fair | CLR | 12.8 | -5 | 29% | 77.57 | 1035.8 | |||||||
| 29 | 10:56 | S 20 G 37 | 16.09 | Fair | CLR | 11.1 | -5.6 | 31% | 77.62 | 1036.6 | |||||||
| 29 | 09:56 | SW 22 G 31 | 16.09 | Fair | CLR | 8.9 | -5.6 | 36% | 6 | 77.67 | 1037.2 | ||||||
| 29 | 08:56 | SW 17 | 16.09 | Fair | CLR | 6.7 | -5.6 | 41% | 4 | 77.65 | 1037.2 | ||||||
| 29 | 07:56 | SE 7 | 16.09 | Fair | CLR | -0.6 | -2.2 | -0.6 | -2.8 | 89% | -3 | 77.65 | 1037.1 | ||||
| 29 | 06:56 | Calm | 16.09 | Fair | CLR | -2.2 | -3.3 | 92% | 77.62 | 1036.8 | |||||||
| 29 | 05:56 | Calm | 16.09 | Fair | CLR | -2.2 | -4.4 | 85% | 77.62 | 1036.6 | |||||||
| 29 | 04:56 | Calm | 16.09 | Fair | CLR | -2.2 | -4.4 | 85% | 77.57 | 1036.0 | |||||||
| 29 | 03:56 | Calm | 16.09 | Fair | CLR | -2.2 | -5 | 81% | 77.57 | 1036.2 | |||||||
| 29 | 02:56 | Calm | 16.09 | Fair | CLR | -1.7 | -5.6 | 75% | 77.6 | 1036.5 | |||||||
| 29 | 01:56 | Calm | 16.09 | Fair | CLR | -1.7 | -5 | 6.1 | -1.7 | 78% | 77.62 | 1036.6 | |||||
| 29 | 00:56 | Calm | 16.09 | Fair | CLR | -0.6 | -5.6 | 69% | 77.6 | 1036.5 | |||||||
| 28 | 23:56 | Calm | 16.09 | Fair | CLR | 0 | -6.1 | 64% | 77.57 | 1036.2 | |||||||
| 28 | 22:56 | Calm | 16.09 | Fair | CLR | 1.1 | -7.2 | 54% | 77.57 | 1036.0 | |||||||
| 28 | 21:56 | Calm | 16.09 | Fair | CLR | 1.7 | -7.8 | 50% | 77.57 | 1036.0 | |||||||
| 28 | 20:56 | Calm | 16.09 | Fair | CLR | 4.4 | -8.3 | 40% | 77.52 | 1035.5 | |||||||
| 28 | 19:56 | NW 7 | 16.09 | Fair | CLR | 6.1 | -10.6 | 9.4 | 6.1 | 29% | 5 | 77.44 | 1034.5 | ||||
| 28 | 18:56 | NW 13 | 16.09 | Fair | CLR | 7.8 | -10.6 | 26% | 6 | 77.42 | 1033.9 | ||||||
| 28 | 17:56 | W 20 G 28 | 16.09 | Fair | CLR | 8.9 | -10 | 25% | 6 | 77.37 | 1033.4 | ||||||
| 28 | 16:56 | NW 19 G 31 | 16.09 | Fair | CLR | 8.3 | -11.1 | 24% | 6 | 77.37 | 1033.4 | ||||||
| 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) | |||||||||||||||