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.
22 15:56 NW 5 8.00 Rain OVC005 35.6 0 0% 32 29.83 1011.9 0.06 0.12
22 14:56 Calm 10.00 Light Rain OVC007 35.6 0 0% 29.84 1012.2 0.05
22 13:56 Calm 9.00 Light Rain OVC007 37.4 0 0% 29.85 1012.5 0.01
22 12:56 N 3 4.00 Light Rain BKN003 OVC009 35.6 0 36 35.1 0% 29.87 1013.2 0.02 0.12
22 11:56 Calm 3.00 Light Rain OVC003 35.6 0 0% 29.92 1014.9 0.03
22 10:56 N 3 4.00 Light Rain BKN005 OVC020 35.6 0 0% 29.95 1016.1
22 09:56 NE 5 4.00 Light Rain OVC007 35.6 0 0% 32 29.96 1016.5 0.02 0.07
22 08:56 Vrbl 5 4.00 Light Rain BKN009 OVC014 35.6 0 0% 32 29.98 1016.9 0.04
22 07:56 Calm 4.00 Light Rain OVC020 35.6 0 0% 29.98 1016.8 0.01
22 06:56 Calm 5.00 Light Rain BKN030 OVC043 35.6 0 39 36 0% 29.98 1017.2
22 05:56 Calm 10.00 Light Rain OVC036 36 36 100% 30.01 1017.9
22 04:56 Calm 10.00 Unknown Precip SCT022 OVC038 37 37 100% 30 1017.7
22 03:56 SE 6 10.00 Light Rain FEW027 SCT035 OVC044 37 35.1 93% 33 30.02 1018.1
22 02:56 E 3 10.00 Overcast OVC050 37 30.9 79% 30.02 1018.3
22 01:56 Calm 10.00 Overcast OVC085 37.9 28.9 70% 30.03 1018.4
22 00:56 Calm 10.00 Mostly Cloudy BKN100 BKN110 39 28 43 35.1 65% 30.03 1018.6
21 23:56 E 3 10.00 Overcast OVC090 37.9 28.9 70% 30.05 1019.2
21 22:56 Calm 10.00 Fair CLR 36 28 73% 30.04 1018.9
21 21:56 Calm 10.00 Fair CLR 37 28 70% 30.04 1019.0
21 20:56 Calm 10.00 Fair CLR 39.9 28 63% 30.05 1019.4
21 19:56 SE 7 10.00 Fair CLR 41 28 60% 37 30.04 1019.1
21 18:56 Calm 10.00 Fair CLR 43 27 53.1 43 53% 30.03 1018.7
21 17:56 Calm 10.00 Fair CLR 46.9 26.1 44% 30.02 1018.3
21 16:56 SE 6 10.00 Fair CLR 51.1 26.1 38% 30.01 1017.8
21 15:56 NE 3 10.00 Fair CLR 51.1 25 36% 30 1017.5
21 14:56 Vrbl 3 10.00 Fair CLR 52 28 40% 30 1017.3
21 13:56 Vrbl 3 10.00 Fair CLR 52 28 40% 30 1017.2
21 12:56 NW 5 10.00 Fair CLR 50 26.1 50 35.1 39% 49 30 1017.5
21 11:56 Vrbl 3 10.00 Fair CLR 48 27 44% 30.01 1017.9
21 10:56 N 6 10.00 Fair CLR 46.9 27 46% 45 30.01 1017.8
21 09:56 Vrbl 3 10.00 Fair CLR 48 27 44% 30.02 1018.4
21 08:56 W 3 10.00 Fair CLR 45 26.1 48% 30.02 1018.3
21 07:56 Calm 10.00 Fair CLR 35.1 28 76% 29.96 1016.4
21 06:56 Calm 10.00 Fair CLR 37 26.1 46.9 35.1 65% 29.94 1015.8
21 05:56 W 8 10.00 Fair CLR 41 26.1 55% 36 29.91 1014.4
21 04:56 W 9 10.00 Fair CLR 43 26.1 51% 38 29.86 1012.8
21 03:56 W 13 10.00 Fair CLR 44.1 26.1 49% 38 29.83 1011.7
21 02:56 W 18 G 28 10.00 Fair CLR 46 27 47% 39 29.81 1010.9
21 01:56 NW 12 G 18 10.00 Fair CLR 46 28 50% 41 29.82 1011.3
21 00:56 NW 6 10.00 Fair CLR 46 28.9 51.1 37.9 51% 44 29.81 1010.9
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
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)