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. | ||||||||||||||||
| 19 | 01:56 | Calm | 10.00 | Fair | CLR | 37 | 37 | 46 | 37 | 100% | 30.51 | 1034.6 | |||||
| 19 | 00:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37.9 | 100% | 30.52 | 1034.9 | |||||||
| 18 | 23:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37.9 | 100% | 30.53 | 1035.5 | |||||||
| 18 | 22:56 | Calm | 10.00 | Fair | CLR | 39.9 | 39 | 97% | 30.54 | 1035.7 | |||||||
| 18 | 21:56 | Calm | 10.00 | Fair | CLR | 41 | 37.9 | 89% | 30.54 | 1035.9 | |||||||
| 18 | 20:56 | Calm | 10.00 | Fair | CLR | 45 | 36 | 71% | 30.54 | 1036.0 | |||||||
| 18 | 19:56 | Calm | 10.00 | Fair | CLR | 45 | 36 | 63 | 45 | 71% | 30.55 | 1036.3 | |||||
| 18 | 18:56 | Calm | 10.00 | Fair | CLR | 48 | 39 | 71% | 30.54 | 1036.1 | |||||||
| 18 | 17:56 | Calm | 10.00 | Fair | CLR | 57.9 | 35.1 | 42% | 30.54 | 1035.9 | |||||||
| 18 | 16:56 | Vrbl 3 | 10.00 | Fair | CLR | 60.1 | 28.9 | 31% | 30.56 | 1036.3 | |||||||
| 18 | 15:56 | Calm | 10.00 | Fair | CLR | 61 | 27 | 27% | 30.57 | 1036.8 | |||||||
| 18 | 14:56 | Vrbl 3 | 10.00 | Fair | CLR | 61 | 28 | 29% | 30.57 | 1037.0 | |||||||
| 18 | 13:56 | Vrbl 3 | 10.00 | Fair | CLR | 61 | 27 | 61 | 35.1 | 27% | 30.59 | 1037.6 | |||||
| 18 | 12:56 | Vrbl 5 | 10.00 | Fair | CLR | 59 | 26.1 | 28% | 30.61 | 1038.2 | |||||||
| 18 | 11:56 | Calm | 10.00 | Fair | CLR | 57 | 27 | 32% | 30.63 | 1038.9 | |||||||
| 18 | 10:56 | Vrbl 6 | 10.00 | Fair | CLR | 54 | 30 | 40% | 30.63 | 1038.7 | |||||||
| 18 | 09:56 | Vrbl 3 | 10.00 | Fair | CLR | 48.9 | 30.9 | 50% | 30.61 | 1038.4 | |||||||
| 18 | 08:56 | Vrbl 6 | 10.00 | Fair | CLR | 42.1 | 32 | 68% | 39 | 30.6 | 1038.0 | ||||||
| 18 | 07:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 39.9 | 34 | 100% | 30.57 | 1037.2 | |||||
| 18 | 06:56 | Calm | 10.00 | Fair | CLR | 35.1 | 35.1 | 100% | 30.55 | 1036.3 | |||||||
| 18 | 05:56 | Calm | 10.00 | Fair | CLR | 36 | 33.1 | 89% | 30.52 | 1035.4 | |||||||
| 18 | 04:56 | Calm | 10.00 | Fair | CLR | 36 | 33.1 | 89% | 30.5 | 1034.7 | |||||||
| 18 | 03:56 | Calm | 10.00 | Fair | CLR | 39 | 30.9 | 73% | 30.5 | 1034.4 | |||||||
| 18 | 02:56 | Calm | 10.00 | Fair | CLR | 39 | 30.9 | 73% | 30.49 | 1034.2 | |||||||
| 18 | 01:56 | Calm | 10.00 | Fair | CLR | 39 | 32 | 45 | 37 | 76% | 30.47 | 1033.6 | |||||
| 18 | 00:56 | Calm | 10.00 | Fair | CLR | 37.9 | 37.9 | 100% | 30.47 | 1033.4 | |||||||
| 17 | 23:56 | Calm | 10.00 | Fair | CLR | 37.9 | 35.1 | 89% | 30.46 | 1033.3 | |||||||
| 17 | 22:56 | Calm | 10.00 | Fair | CLR | 41 | 34 | 76% | 30.45 | 1033.0 | |||||||
| 17 | 21:56 | Calm | 10.00 | Fair | CLR | 42.1 | 33.1 | 71% | 30.43 | 1032.2 | |||||||
| 17 | 19:56 | Calm | 10.00 | Fair | CLR | 45 | 33.1 | 57.9 | 45 | 63% | 30.38 | 1030.4 | |||||
| 17 | 18:56 | Calm | 10.00 | Fair | CLR | 48 | 32 | 54% | 30.34 | 1029.1 | |||||||
| 17 | 17:56 | Vrbl 3 | 10.00 | Fair | CLR | 53.1 | 33.1 | 47% | 30.31 | 1027.9 | |||||||
| 17 | 16:56 | Vrbl 3 | 10.00 | Fair | CLR | 55.9 | 35.1 | 46% | 30.29 | 1026.9 | |||||||
| 17 | 15:56 | N 8 G 18 | 10.00 | Fair | CLR | 57 | 35.1 | 44% | 30.27 | 1026.4 | |||||||
| 17 | 14:56 | NW 8 G 21 | 7.00 | Mostly Cloudy | BKN050 | 57 | 35.1 | 44% | 30.27 | 1026.3 | |||||||
| 17 | 13:56 | Vrbl 7 | 10.00 | Mostly Cloudy | BKN045 | 57 | 37 | 57 | 51.1 | 47% | 30.26 | 1026.0 | |||||
| 17 | 12:56 | Vrbl 7 | 10.00 | Mostly Cloudy | BKN039 | 52 | 39 | 61% | 30.27 | 1026.4 | |||||||
| 17 | 11:56 | Vrbl 7 | 10.00 | Mostly Cloudy | BKN043 | 52 | 39.9 | 64% | 30.26 | 1026.0 | |||||||
| 17 | 10:56 | Vrbl 7 | 10.00 | Mostly Cloudy | BKN039 BKN120 | 51.1 | 41 | 69% | 30.22 | 1024.7 | |||||||
| 17 | 09:56 | Vrbl 6 | 10.00 | Partly Cloudy | SCT120 | 51.1 | 39.9 | 66% | 30.2 | 1024.0 | |||||||
| 17 | 08:56 | Vrbl 3 | 10.00 | Overcast | OVC036 | 51.1 | 44.1 | 77% | 30.15 | 1022.2 | |||||||
| 17 | 07:56 | Vrbl 3 | 10.00 | Fair | CLR | 51.1 | 46 | 59 | 51.1 | 83% | 30.11 | 1020.8 | 0.02 | ||||
| 17 | 06:56 | Vrbl 3 | 10.00 | Overcast | FEW024 BKN045 OVC120 | 53.1 | 53.1 | 100% | 30.07 | 1019.6 | 0.01 | ||||||
| 17 | 05:56 | Vrbl 5 | 10.00 | Light Rain | OVC033 | 54 | 53.1 | 97% | 30.05 | 1018.7 | |||||||
| 17 | 04:56 | Vrbl 3 | 10.00 | Light Rain | FEW037 BKN070 OVC100 | 55 | 55 | 100% | 29.99 | 1016.5 | 0.01 | ||||||
| 17 | 03:56 | W 5 | 10.00 | Light Rain | SCT060 BKN080 OVC100 | 55 | 55 | 100% | 29.98 | 1016.2 | 0.01 | ||||||
| 17 | 02:56 | NW 9 | 10.00 | Light Rain | OVC047 | 57 | 53.1 | 87% | 29.95 | 1015.3 | |||||||
| 17 | 01:56 | NW 5 | 10.00 | Overcast | BKN043 OVC100 | 57.9 | 52 | 62.1 | 57.9 | 81% | 29.94 | 1014.8 | |||||
| 17 | 00:56 | NW 7 | 10.00 | Overcast | OVC090 | 60.1 | 50 | 70% | 29.94 | 1014.7 | |||||||
| 16 | 23:56 | NW 12 | 10.00 | Overcast | OVC085 | 61 | 52 | 72% | 29.92 | 1014.2 | |||||||
| 16 | 22:56 | NW 8 | 10.00 | Overcast | BKN085 OVC110 | 62.1 | 53.1 | 73% | 29.9 | 1013.8 | |||||||
| 16 | 21:56 | NW 5 | 10.00 | Overcast | OVC080 | 61 | 55 | 81% | 29.87 | 1012.7 | |||||||
| 16 | 20:56 | NW 6 | 10.00 | Mostly Cloudy | SCT070 SCT080 BKN100 | 61 | 57 | 87% | 29.86 | 1012.6 | |||||||
| 16 | 19:56 | NW 5 | 10.00 | Mostly Cloudy | SCT070 SCT100 BKN120 | 62.1 | 62.1 | 82.9 | 62.1 | 100% | 29.85 | 1012.1 | 0.03 | 0.46 | |||
| 16 | 18:56 | Vrbl 5 | 3.00 | Heavy Rain Fog/Mist | FEW039 BKN060 OVC100 | 64.9 | 64.9 | 100% | 29.83 | 1011.2 | 0.43 | ||||||
| 16 | 17:56 | W 3 | 10.00 | Partly Cloudy | SCT075 SCT095 | 78.1 | 69.1 | 74% | 80 | 29.74 | 1008.1 | ||||||
| 16 | 16:56 | SW 9 | 10.00 | Fair | CLR | 82 | 70 | 67% | 86 | 29.74 | 1008.1 | ||||||
| 16 | 15:56 | SW 8 | 10.00 | Fair | CLR | 82 | 69.1 | 65% | 85 | 29.74 | 1008.0 | ||||||
| 16 | 13:56 | SW 6 | 10.00 | Fair | CLR | 79 | 69.1 | 79 | 62.1 | 72% | 82 | 29.78 | 1009.4 | ||||
| 16 | 12:56 | S 9 | 10.00 | Partly Cloudy | SCT010 | 75 | 68 | 79% | 76 | 29.83 | 1011.1 | ||||||
| 16 | 11:56 | Vrbl 5 | 10.00 | Overcast | OVC006 | 69.1 | 69.1 | 100% | 29.86 | 1012.1 | |||||||
| 16 | 10:56 | SW 7 | 10.00 | Overcast | OVC004 | 66 | 66 | 100% | 29.88 | 1013.2 | |||||||
| 16 | 09:56 | S 7 | 5.00 | Overcast with Haze | OVC004 | 62.6 | 0 | 0% | 29.91 | 1014.0 | |||||||
| 16 | 08:56 | S 6 | 4.00 | Fog/Mist | OVC004 | 63 | 63 | 100% | 29.93 | 1014.7 | |||||||
| 16 | 07:56 | SW 5 | 5.00 | Overcast with Haze | OVC004 | 62.6 | 0 | 62.1 | 60.1 | 0% | 29.94 | 1015.2 | |||||
| 16 | 06:56 | Vrbl 7 | 7.00 | Overcast | OVC002 | 62.1 | 62.1 | 100% | 29.96 | 1015.8 | |||||||
| 16 | 05:56 | S 8 | 3.00 | Fog/Mist | OVC002 | 60.8 | 0 | 0% | 29.97 | 1016.2 | |||||||
| 16 | 04:56 | S 7 | 1.50 | Fog/Mist | OVC002 | 60.8 | 0 | 0% | 29.98 | 1016.4 | |||||||
| 16 | 03:56 | S 6 | 1.50 | Fog/Mist | OVC002 | 60.1 | 60.1 | 100% | 30.02 | 1017.8 | |||||||
| 16 | 02:56 | SE 5 | 2.50 | Fog/Mist | OVC004 | 60.1 | 60.1 | 100% | 30.05 | 1018.9 | |||||||
| 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) | |||||||||||||||