Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (est) 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.
20 23:56 W 14 G 21 10.00 Fair CLR 51.1 27 39% 29.77 1009.7
20 22:56 SW 5 10.00 Fair CLR 46 30 54% 44 29.76 1009.3
20 21:56 Vrbl 5 8.00 Fair CLR 37.4 0 0% 34 29.74 1008.6
20 20:56 Calm 2.50 Fog/Mist CLR 39.2 0 0% 29.7 1007.4
20 19:56 Calm 8.00 Fair CLR 39.2 0 0% 29.66 1006.0
20 18:56 Calm 10.00 Fair CLR 45 45 55.9 45 100% 29.63 1005.0
20 17:56 Calm 10.00 Fair CLR 51.1 50 96% 29.6 1003.7
20 16:56 SW 5 10.00 Fair CLR 55.9 48.9 77% 29.56 1002.5
20 15:56 SW 9 10.00 Fair CLR 55 48 77% 29.56 1002.4
20 14:56 Vrbl 5 10.00 Mostly Cloudy BKN010 50 50 100% 49 29.57 1002.8
20 13:56 S 7 10.00 Overcast OVC008 46.4 0 0% 43 29.58 1003.3
20 12:56 SW 6 10.00 Overcast OVC006 44.6 0 45 37 0% 42 29.63 1005.0 0.19
20 11:56 W 5 5.00 Overcast with Haze OVC004 42.8 0 0% 41 29.67 1006.3
20 10:56 NW 3 8.00 Overcast OVC004 42.8 0 0% 29.69 1007.2
20 09:56 Calm 10.00 Overcast OVC004 39.2 0 0% 29.68 1007.0 0.19
20 08:56 E 6 10.00 Light Rain OVC004 39.2 0 0% 36 29.7 1007.5 0.09
20 07:56 Calm 3.00 Rain SCT003 BKN012 OVC080 37.4 0 0% 29.78 1010.0 0.1
20 06:56 Calm 1.25 Rain BKN005 BKN009 OVC015 37.4 0 37.9 37 0% 29.78 1010.2 0.07 0.19
20 05:56 Calm 2.50 Light Rain BKN004 OVC008 37.4 0 0% 29.79 1010.4 0.06
20 04:56 Vrbl 5 1.50 Rain OVC002 37.4 0 0% 34 29.77 1009.8 0.04
20 03:56 Vrbl 5 1.75 Light Rain OVC002 37.4 0 0% 34 29.79 1010.6 0.02 0.02
20 02:56 E 3 1.00 Fog/Mist OVC002 37.4 0 0% 29.84 1012.1
20 01:56 Vrbl 5 1.00 Fog/Mist OVC002 37.4 0 0% 34 29.87 1013.1
20 00:56 Calm 1.00 Fog/Mist OVC002 37.4 0 39.9 37.9 0% 29.9 1014.4 0.03
19 23:56 Calm 2.00 Fog/Mist OVC004 37.4 0 0% 29.91 1014.7
19 22:56 E 3 2.50 Fog/Mist OVC004 39.2 0 0% 29.92 1014.8
19 21:56 E 5 4.00 Overcast with Haze OVC004 39.2 0 0% 36 29.93 1015.2 0.03
19 20:56 Vrbl 5 5.00 Light Rain OVC004 39.2 0 0% 36 29.93 1015.4 0.01
19 19:56 E 5 5.00 Light Rain OVC004 39.2 0 0% 36 29.94 1015.7 0.02
19 18:56 NE 5 5.00 Light Rain OVC004 39.2 0 39 37.9 0% 36 29.95 1015.8 0.03 0.14
19 17:56 Vrbl 6 4.00 Light Rain OVC004 39.2 0 0% 36 29.94 1015.6 0.08
19 16:56 N 5 2.00 Light Rain OVC002 39.2 0 0% 36 29.95 1016.0 0.03
19 15:56 Vrbl 3 0.50 Light Rain OVC002 37.4 0 0% 29.94 1015.5
19 14:56 Calm 1.00 Light Rain OVC002 39.2 0 0% 29.95 1016.1
19 13:56 Vrbl 5 0.75 Light Rain OVC002 37.4 0 0% 34 29.96 1016.3
19 12:56 Calm 1.00 Fog/Mist OVC002 37.4 0 39 37 0% 30 1017.7
19 11:56 Vrbl 5 0.75 Fog/Mist OVC002 37.4 0 0% 34 30.02 1018.3
19 10:56 E 3 0.75 Fog/Mist OVC002 37.4 0 0% 30.02 1018.5
19 09:56 Vrbl 5 0.50 Fog OVC002 39.2 0 0% 36 29.99 1017.5
19 08:56 E 6 0.25 Fog OVC002 37.4 0 0% 33 30 1017.5
19 07:56 NE 5 0.25 Fog OVC002 37.4 0 0% 34 29.98 1016.9
19 06:56 Vrbl 5 0.50 Fog OVC002 37.4 0 39.9 36 0% 34 29.95 1015.9
19 05:56 NE 5 1.75 Fog/Mist BKN065 35.6 0 0% 32 29.92 1015.1
19 04:56 Calm 3.00 Fog/Mist CLR 37.4 0 0% 29.9 1014.1
19 03:56 Vrbl 3 4.00 Fair with Haze CLR 39.2 0 0% 29.88 1013.4
19 02:56 Calm 2.00 Fog/Mist CLR 37.4 0 0% 29.86 1012.7
19 01:56 Calm 6.00 Fair with Haze CLR 37.4 0 0% 29.85 1012.6
19 00:56 Calm 7.00 Fair CLR 39.2 0 46.9 39 0% 29.83 1012.0
18 23:56 Calm 9.00 A Few Clouds FEW055 39.2 0 0% 29.83 1012.0
18 22:56 Calm 10.00 A Few Clouds FEW044 42.8 0 0% 29.82 1011.5
18 21:56 Calm 10.00 Mostly Cloudy FEW046 BKN065 43 43 100% 29.81 1011.2
18 20:56 Calm 10.00 Overcast BKN048 OVC060 46 46 100% 29.79 1010.5
18 19:56 Calm 10.00 Overcast OVC055 46 45 96% 29.77 1009.9
18 18:56 Calm 10.00 Overcast OVC050 48 45 51.1 46 89% 29.77 1009.9
18 17:56 Calm 9.00 Overcast OVC050 48 45 89% 29.76 1009.3
18 16:56 SE 5 10.00 Overcast OVC055 48 44.1 86% 47 29.75 1009.1
18 15:56 Calm 10.00 Overcast OVC048 48.9 44.1 83% 29.73 1008.5
18 14:56 Calm 10.00 Overcast OVC050 48 44.1 86% 29.74 1008.7
18 13:56 Calm 10.00 Overcast OVC060 46.9 43 86% 29.75 1009.2
18 12:56 SW 5 9.00 Mostly Cloudy BKN070 46.9 43 46.9 34 86% 45 29.77 1009.9
18 11:56 SE 3 6.00 Fog/Mist CLR 43 42.1 97% 29.8 1010.8
18 10:56 Calm 5.00 Fog/Mist CLR 39.9 39.9 100% 29.84 1012.3
18 09:56 Calm 5.00 Mostly Cloudy with Haze BKN003 37.4 0 0% 29.86 1013.0
18 08:56 Calm 5.00 Fair with Haze CLR 35.6 0 0% 29.89 1013.8
18 07:56 Calm 2.50 Fog/Mist BKN002 35.6 0 0% 29.9 1014.4
18 06:56 Calm 1.50 Fog/Mist OVC002 35.6 0 37.9 35.1 0% 29.91 1014.5
18 05:56 Calm 2.00 Fog/Mist OVC002 35.6 0 0% 29.93 1015.2
18 04:56 Calm 1.25 Fog/Mist OVC002 35.6 0 0% 29.94 1015.7
18 03:56 E 5 1.25 Fog/Mist OVC002 35.6 0 0% 32 29.95 1015.8
18 02:56 Calm 3.00 Fog/Mist CLR 35.6 0 0% 30 1017.5
18 01:56 Calm 3.00 Fog/Mist CLR 37.4 0 0% 30.01 1018.2
18 00:56 Calm 4.00 Fair with Haze CLR 37.4 0 42.1 37 0% 30.03 1018.8
Date Time (est) 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)