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 | 03:56 | Calm | 10.00 | Overcast | SCT036 BKN060 OVC075 | 66 | 66 | 100% | 30.04 | 1018.2 | |||||||
| 22 | 02:56 | Calm | 10.00 | Fair | CLR | 66 | 64.9 | 96% | 30.03 | 1018.1 | |||||||
| 22 | 01:56 | Calm | 10.00 | Partly Cloudy | SCT060 | 66 | 64.9 | 71.1 | 64.9 | 96% | 30.05 | 1018.5 | |||||
| 22 | 00:56 | Calm | 10.00 | Fair | CLR | 64.9 | 64.9 | 100% | 30.06 | 1019.0 | |||||||
| 21 | 23:56 | Calm | 10.00 | Mostly Cloudy | BKN065 | 66 | 66 | 100% | 30.07 | 1019.4 | |||||||
| 21 | 22:56 | Calm | 10.00 | Fair | CLR | 64.9 | 64.9 | 100% | 30.09 | 1019.9 | |||||||
| 21 | 21:56 | Calm | 10.00 | Fair | CLR | 66 | 66 | 100% | 30.08 | 1019.7 | |||||||
| 21 | 20:56 | Calm | 10.00 | Fair | CLR | 70 | 61 | 73% | 30.09 | 1019.8 | |||||||
| 21 | 19:56 | Calm | 10.00 | Fair | CLR | 71.1 | 61 | 80.1 | 71.1 | 71% | 30.07 | 1019.5 | |||||
| 21 | 18:56 | Calm | 10.00 | Fair | CLR | 73 | 59 | 62% | 30.07 | 1019.3 | |||||||
| 21 | 17:56 | Calm | 10.00 | Fair | CLR | 75.9 | 62.1 | 62% | 78 | 30.05 | 1018.6 | ||||||
| 21 | 16:56 | Vrbl 5 | 10.00 | Fair | CLR | 79 | 57.9 | 49% | 80 | 30.06 | 1018.9 | ||||||
| 21 | 15:56 | NW 5 | 10.00 | Fair | CLR | 79 | 54 | 42% | 79 | 30.08 | 1019.8 | ||||||
| 21 | 14:56 | Vrbl 5 | 8.00 | Fair | CLR | 78.1 | 57 | 48% | 79 | 30.1 | 1020.4 | ||||||
| 21 | 13:56 | Calm | 10.00 | Fair | CLR | 80.1 | 57.9 | 80.1 | 62.1 | 47% | 81 | 30.12 | 1020.9 | ||||
| 21 | 12:56 | Calm | 10.00 | Fair | CLR | 77 | 59 | 54% | 79 | 30.13 | 1021.3 | ||||||
| 21 | 11:56 | Vrbl 5 | 10.00 | Fair | CLR | 75.9 | 61 | 60% | 78 | 30.15 | 1022.0 | ||||||
| 21 | 10:56 | Calm | 10.00 | Fair | CLR | 73.9 | 57.9 | 57% | 30.16 | 1022.2 | |||||||
| 21 | 09:56 | W 6 | 10.00 | Fair | CLR | 69.1 | 61 | 76% | 30.14 | 1021.7 | |||||||
| 21 | 08:56 | Calm | 10.00 | Fair | CLR | 66 | 61 | 84% | 30.14 | 1021.6 | |||||||
| 21 | 07:56 | Vrbl 3 | 10.00 | Fair | CLR | 62.1 | 62.1 | 63 | 60.1 | 100% | 30.14 | 1021.6 | |||||
| 21 | 06:56 | Calm | 10.00 | Fair | CLR | 60.8 | 0 | 0% | 30.12 | 1021.1 | |||||||
| 21 | 05:56 | Calm | 10.00 | Fair | CLR | 60.8 | 0 | 0% | 30.1 | 1020.4 | |||||||
| 21 | 04:56 | Calm | 9.00 | Fair | CLR | 60.8 | 0 | 0% | 30.09 | 1019.9 | |||||||
| 21 | 03:56 | Calm | 10.00 | Fair | CLR | 63 | 63 | 100% | 30.08 | 1019.7 | |||||||
| 21 | 02:56 | Calm | 10.00 | Fair | CLR | 62.6 | 0 | 0% | 30.07 | 1019.1 | |||||||
| 21 | 01:56 | Calm | 10.00 | Fair | CLR | 62.6 | 0 | 68 | 63 | 0% | 30.07 | 1019.1 | |||||
| 21 | 00:56 | Calm | 10.00 | Fair | CLR | 64 | 64 | 100% | 30.07 | 1019.3 | |||||||
| 20 | 23:56 | Calm | 10.00 | Fair | CLR | 64.9 | 64.9 | 100% | 30.07 | 1019.4 | |||||||
| 20 | 22:56 | Calm | 10.00 | Fair | CLR | 64.9 | 64.9 | 100% | 30.06 | 1019.2 | |||||||
| 20 | 21:56 | Calm | 10.00 | Partly Cloudy | FEW050 SCT060 | 66 | 66 | 100% | 30.06 | 1018.8 | |||||||
| 20 | 20:56 | Calm | 10.00 | Partly Cloudy | SCT050 | 66.9 | 66.9 | 100% | 30.03 | 1018.1 | |||||||
| 20 | 19:56 | Calm | 10.00 | Partly Cloudy | SCT046 | 69.1 | 66.9 | 89.1 | 69.1 | 93% | 30 | 1016.9 | 0.24 | ||||
| 20 | 18:56 | Vrbl 5 | 10.00 | Mostly Cloudy | FEW090 BKN110 | 73.9 | 68 | 82% | 29.98 | 1016.2 | |||||||
| 20 | 17:56 | Vrbl 5 | 10.00 | Mostly Cloudy | SCT021 BKN028 | 79 | 75 | 88% | 83 | 29.94 | 1014.8 | ||||||
| 20 | 16:56 | W 6 | 10.00 | Thunderstorm in Vicinity | FEW100 | 81 | 78.1 | 91% | 89 | 29.92 | 1014.0 | 0.24 | |||||
| 20 | 15:56 | Vrbl 3 | 10.00 | Thunderstorm Light Rain | FEW012 SCT035 BKN043 | 77 | 77 | 100% | 78 | 29.92 | 1013.9 | 0.24 | |||||
| 20 | 14:56 | S 10 G 18 | 10.00 | Mostly Cloudy | FEW032 BKN075 | 88 | 73.9 | 63% | 97 | 29.91 | 1013.6 | ||||||
| 20 | 13:56 | SE 12 | 10.00 | Overcast | FEW028 BKN080 OVC110 | 84 | 73.9 | 84.9 | 72 | 72% | 91 | 29.95 | 1015.1 | ||||
| 20 | 12:56 | SE 9 | 10.00 | Overcast | OVC055 | 80.1 | 75.9 | 87% | 85 | 29.98 | 1016.0 | ||||||
| 20 | 11:56 | SE 8 | 10.00 | Mostly Cloudy | BKN060 BKN085 BKN120 | 78.1 | 73.9 | 87% | 81 | 29.99 | 1016.6 | ||||||
| 20 | 10:56 | Vrbl 5 | 10.00 | Overcast | SCT065 BKN100 OVC120 | 79 | 73 | 82% | 82 | 29.99 | 1016.5 | ||||||
| 20 | 09:56 | Vrbl 3 | 10.00 | Overcast | OVC110 | 75 | 71.1 | 88% | 75 | 29.99 | 1016.6 | ||||||
| 20 | 08:56 | Calm | 10.00 | Overcast | OVC110 | 73 | 72 | 96% | 29.99 | 1016.6 | |||||||
| 20 | 07:56 | Calm | 10.00 | Overcast | BKN047 BKN100 OVC120 | 72 | 71.1 | 72 | 69.1 | 97% | 30 | 1016.7 | |||||
| 20 | 06:56 | Calm | 10.00 | Mostly Cloudy | SCT090 BKN120 | 69.8 | 0 | 0% | 30 | 1016.7 | |||||||
| 20 | 05:56 | Calm | 10.00 | Overcast | OVC050 | 70 | 70 | 100% | 29.99 | 1016.4 | |||||||
| 20 | 04:56 | Calm | 10.00 | Light Rain | BKN050 OVC090 | 72 | 68 | 87% | 29.98 | 1016.0 | |||||||
| 20 | 03:56 | Calm | 10.00 | Overcast | OVC055 | 71.1 | 70 | 96% | 29.99 | 1016.3 | |||||||
| 20 | 02:56 | Calm | 10.00 | Mostly Cloudy | BKN120 | 70 | 70 | 100% | 30 | 1016.5 | |||||||
| 20 | 01:56 | Calm | 10.00 | Fair | CLR | 70 | 70 | 78.1 | 68 | 100% | 30 | 1016.6 | |||||
| 20 | 00:56 | Calm | 10.00 | Fair | CLR | 69.1 | 69.1 | 100% | 30 | 1016.9 | |||||||
| 19 | 23:56 | Calm | 10.00 | A Few Clouds | FEW060 | 70 | 70 | 100% | 30 | 1016.7 | |||||||
| 19 | 22:56 | Calm | 10.00 | A Few Clouds | FEW060 | 71.1 | 71.1 | 100% | 29.98 | 1016.2 | |||||||
| 19 | 21:56 | Calm | 10.00 | Fair | CLR | 72 | 70 | 94% | 29.98 | 1015.9 | |||||||
| 19 | 20:56 | Calm | 10.00 | Fair | CLR | 73.9 | 69.1 | 85% | 29.97 | 1015.9 | |||||||
| 19 | 19:56 | Calm | 10.00 | Fair | CLR | 78.1 | 66.9 | 87.1 | 78.1 | 69% | 80 | 29.96 | 1015.6 | ||||
| 19 | 18:56 | W 3 | 10.00 | A Few Clouds | FEW050 | 82.9 | 68 | 61% | 86 | 29.96 | 1015.3 | ||||||
| 19 | 17:56 | W 7 | 10.00 | Partly Cloudy | SCT055 | 84.9 | 66 | 53% | 87 | 29.96 | 1015.3 | ||||||
| 19 | 15:56 | Vrbl 7 | 10.00 | Partly Cloudy | SCT055 | 86 | 64.9 | 49% | 88 | 29.95 | 1015.2 | ||||||
| 19 | 14:56 | Vrbl 7 | 10.00 | Partly Cloudy | SCT055 | 86 | 64 | 48% | 87 | 29.97 | 1015.5 | ||||||
| 19 | 13:56 | W 8 | 6.00 | Partly Cloudy with Haze | SCT050 SCT060 | 84.9 | 66.9 | 84.9 | 66 | 55% | 88 | 29.98 | 1015.9 | ||||
| 19 | 12:56 | W 9 | 10.00 | Fair | CLR | 84 | 64.9 | 53% | 86 | 29.98 | 1015.9 | ||||||
| 19 | 11:56 | NW 8 | 10.00 | Fair | CLR | 82 | 64 | 55% | 84 | 29.98 | 1016.1 | ||||||
| 19 | 10:56 | W 9 | 10.00 | Fair | CLR | 81 | 63 | 54% | 82 | 29.98 | 1015.9 | ||||||
| 19 | 09:56 | Calm | 10.00 | Fair | CLR | 77 | 64.9 | 66% | 79 | 29.97 | 1015.7 | ||||||
| 19 | 08:56 | Vrbl 3 | 10.00 | Fair | CLR | 72 | 66 | 82% | 29.97 | 1016.0 | |||||||
| 19 | 07:56 | Calm | 10.00 | Fair | CLR | 64.4 | 0 | 64.9 | 62.1 | 0% | 29.99 | 1016.5 | |||||
| 19 | 06:56 | Calm | 5.00 | Fair with Haze | CLR | 62.6 | 0 | 0% | 29.98 | 1016.2 | |||||||
| 19 | 05:56 | Calm | 6.00 | Fog/Mist | CLR | 62.1 | 62.1 | 100% | 29.96 | 1015.5 | |||||||
| 19 | 04:56 | Calm | 6.00 | Fair with Haze | CLR | 62.6 | 0 | 0% | 29.96 | 1015.4 | |||||||
| 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) | |||||||||||||||