Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (est) 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.
05 15:56 E 9 14.48 Fair CLR 14.4 12.2 87% 76.53 1021.7
05 14:56 E 9 14.48 Mostly Cloudy BKN012 13.3 13.3 100% 76.56 1022.0
05 13:56 Calm 11.27 Overcast OVC008 12.2 12.2 100% 76.56 1022.3
05 12:56 Calm 8.05 Fog/Mist OVC008 11.7 11.7 11.7 6.7 100% 76.61 1022.9
05 11:56 Calm 6.44 Overcast with Haze OVC004 10 0 0% 76.68 1023.7
05 10:51 Calm 4.83 Fog/Mist OVC004 9 0 0% 76.71 1024.2
05 09:56 Calm 1.61 Fog/Mist OVC002 8 0 0% 76.71 1024.4
05 08:56 E 6 0.40 Fog OVC002 8 0 0% 76.68 1023.8
05 07:56 Calm 0.24 Fog OVC002 7.2 7.2 100% 76.68 1023.8
05 06:56 Calm 0.24 Fog OVC002 7 0 7.2 6.7 0% 76.63 1023.4
05 05:56 Calm 0.40 Fog OVC002 7 0 0% 76.61 1023.1
05 04:56 E 6 0.40 Fog OVC002 7 0 0% 76.63 1023.2
05 03:56 Calm 0.40 Fog OVC002 7 0 0% 76.66 1023.5
05 02:56 Calm 0.40 Fog OVC002 7 0 0% 76.66 1023.4
05 01:56 Calm 0.40 Fog OVC002 7 0 0% 76.71 1024.5
05 00:56 Calm 0.40 Fog OVC002 7 0 8.3 7.2 0% 76.76 1025.1
04 23:56 Calm 0.80 Fog OVC002 7 0 0% 76.76 1024.9
04 22:56 Calm 0.80 Fog OVC002 7 0 0% 76.76 1024.8
04 21:56 Calm 0.40 Fog OVC002 8 0 0% 76.81 1025.5
04 20:56 SE 9 0.80 Fog BKN002 OVC017 8 0 0% 7 76.84 1025.9
04 19:54 Calm 2.82 Fog/Mist OVC002 8 0 0% 76.84 1026.2
04 18:56 N 6 6.44 Overcast with Haze OVC004 8 0 8.9 8.3 0% 76.84 1026.1 0.05
04 17:56 Calm 6.44 Overcast with Haze OVC004 9 0 0% 76.76 1025.1
04 16:56 NE 6 9.66 Overcast with Haze OVC006 9 0 0% 76.73 1024.7
04 15:56 Calm 9.66 Light Rain OVC006 9 0 0% 76.78 1025.3 0.05
04 14:56 Calm 11.27 Overcast OVC004 9 0 0% 76.81 1025.6
04 13:56 E 6 4.83 Light Rain BKN004 BKN008 OVC045 8 0 0% 76.76 1025.0 0.05
04 12:56 Calm 4.02 Light Rain SCT008 BKN047 OVC055 8 0 9.4 6.1 0% 76.84 1026.2 0.03 0.03
04 11:56 NE 6 12.87 Overcast BKN007 OVC033 9 0 0% 76.84 1026.1
04 10:56 Calm 14.48 Overcast OVC007 9 0 0% 76.86 1026.5
04 09:56 Vrbl 6 12.87 Overcast OVC005 9 0 0% 76.86 1026.5
04 08:56 NE 7 6.44 Overcast with Haze BKN003 OVC100 8 0 0% 7 76.84 1026.2
04 07:56 Calm 4.83 Fog/Mist SCT005 OVC035 7 0 0% 76.84 1026.3
04 06:56 Calm 4.02 Fog/Mist OVC090 6 0 6.7 5.6 0% 76.78 1025.6 0.05
04 05:56 Calm 8.05 Overcast with Haze FEW075 OVC090 6 0 0% 76.73 1024.8 0.03
04 04:56 Calm 9.66 Light Rain OVC065 6 0 0% 76.73 1024.9 0.03
04 03:56 Calm 3.22 Fog/Mist OVC049 6 0 0% 76.73 1024.9
04 02:56 Calm 8.05 Overcast with Haze OVC005 6 0 0% 76.78 1025.5
04 01:56 Calm 8.05 Overcast with Haze OVC003 6 0 0% 76.78 1025.5
04 00:56 SW 6 8.05 Light Rain OVC003 6 0 5.6 2.8 0% 76.78 1025.3 0.2
03 23:56 S 6 8.05 Overcast with Haze OVC003 5 0 0% 76.76 1025.3 0.03
03 22:56 SW 7 8.05 Light Rain OVC003 4 0 0% 2 76.81 1025.8
03 21:56 SW 7 14.48 Light Rain OVC003 4 0 0% 2 76.81 1025.8 0.18
03 20:56 S 9 9.66 Light Rain OVC003 3 0 0% 1 76.81 1026.1 0.03
03 19:56 S 9 12.87 Light Rain OVC005 3 0 0% 1 76.89 1026.9 0.15
03 18:56 S 7 9.66 Rain OVC005 3 0 3.3 1.1 0% 1 76.94 1027.8 0.18 0.43
03 17:56 SW 7 4.83 Rain OVC003 3 0 0% 1 76.96 1028.0 0.23
03 16:56 S 9 4.83 Rain OVC003 3 0 0% 1 76.96 1028.0 0.03
03 15:56 S 7 0.40 Fog OVC003 2 0 0% 0 77.01 1028.6
03 14:56 SE 6 1.21 Fog/Mist OVC003 2 0 0% 77.04 1029.1
03 13:56 SE 6 2.41 Fog/Mist OVC003 2 0 0% 77.14 1030.5
03 12:56 S 6 1.61 Unknown Precip OVC003 1 0 1.1 -0.6 0% 77.24 1031.8 0.15
03 11:52 Calm 3.22 Light Snow Fog/Mist OVC003 0.6 0.6 100% 77.34 1033.2 0.13
03 10:56 Calm 2.82 Light Rain Fog/Mist OVC003 0.6 0.6 100% 77.39 1033.8 0.03
03 09:56 Calm 1.61 Unknown Precip Fog/Mist OVC003 0 0 100% 77.44 1034.5
03 08:56 SE 6 1.61 Unknown Precip Fog/Mist OVC003 0 0 100% 77.47 1035.1
03 07:56 Calm 4.02 Unknown Precip Fog/Mist OVC005 0 0 100% 77.5 1035.3
03 06:56 Calm 4.83 Unknown Precip Fog/Mist OVC005 -0.6 -0.6 -0.6 -1.1 100% 77.47 1034.9 0.15
03 05:56 Vrbl 6 8.05 Unknown Precip Fog/Mist OVC005 -0.6 -0.6 100% 77.47 1035.0 0.03
03 04:56 Calm 9.66 Unknown Precip Fog/Mist OVC009 -0.6 -0.6 100% 77.5 1035.3 0.05
03 03:56 SE 7 9.66 Unknown Precip Fog/Mist OVC007 -0.6 -0.6 100% -3 77.55 1036.0 0.05 0.08
03 02:56 Calm 11.27 Overcast OVC007 -1.1 -1.1 100% 77.57 1036.4 0.03
03 01:56 SE 6 8.05 Unknown Precip Fog/Mist OVC005 -1.1 -1.1 100% 77.6 1036.7
03 00:56 Calm 8.05 Fog/Mist FEW005 OVC031 -1.1 -1.1 -1.1 -1.7 100% 77.65 1037.3
02 23:56 Calm 6.44 Fog/Mist BKN005 OVC020 -1.1 -1.1 100% 77.67 1037.5
02 22:56 E 6 6.44 Fog/Mist OVC005 -1.1 -1.7 96% 77.67 1037.8
02 21:56 E 6 8.05 Fog/Mist OVC007 -1.7 -2.2 96% 77.7 1038.0
02 20:56 E 7 11.27 Overcast OVC009 -1.7 -2.2 96% -4 77.72 1038.2
02 19:56 E 6 16.09 Overcast OVC009 -1.7 -2.2 96% 77.72 1038.2
02 18:56 Calm 6.44 Light Snow Fog/Mist OVC009 -1.7 -2.8 0 -1.7 92% 77.7 1038.2 0.08
02 17:56 SE 9 6.44 Light Snow Fog/Mist FEW009 OVC040 -1.7 -2.8 92% -5 77.7 1038.0
02 16:56 SE 7 4.83 Light Snow Fog/Mist OVC044 -1.7 -3.3 89% -4 77.67 1037.6
Date Time (est) 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)