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.
08 15:56 N 8 10.00 Overcast OVC110 28 9 44% 21 30.25 1026.6
08 14:56 Vrbl 6 10.00 Overcast OVC110 30 10 43% 25 30.24 1026.0
08 13:56 N 6 10.00 Overcast OVC110 32 12 43% 27 30.23 1025.6
08 12:56 N 9 10.00 Overcast OVC110 32 12.9 34 30 45% 25 30.22 1025.3
08 11:56 NE 8 10.00 Partly Cloudy SCT120 33.1 9 36% 27 30.21 1025.2
08 07:56 Vrbl 6 10.00 Overcast BKN090 OVC100 30 19.9 66% 25 30.22 1025.3
08 06:56 Vrbl 3 10.00 Partly Cloudy SCT100 30.9 24.1 30.9 26.1 76% 30.2 1024.5
08 05:56 Vrbl 7 10.00 Overcast SCT041 OVC060 30.9 30 96% 25 30.16 1023.2
08 04:56 N 3 10.00 Overcast OVC037 30 30 100% 30.14 1022.5
08 03:56 Calm 9.00 Mostly Cloudy BKN045 28 26.1 92% 30.12 1021.9
08 02:56 Calm 10.00 Fair CLR 26.1 25 96% 30.11 1021.7
08 01:56 Calm 5.00 Fog/Mist CLR 26.1 26.1 100% 30.1 1021.2
08 00:56 Calm 5.00 Fog/Mist CLR 27 26.1 35.1 27 96% 30.08 1020.5
07 23:56 SW 3 7.00 Fair CLR 28.9 27 92% 30.08 1020.4
07 22:56 Calm 6.00 Fog/Mist BKN095 28 27 96% 30.06 1019.8
07 21:56 Calm 9.00 Overcast OVC060 28.9 28 96% 30.06 1019.9
07 20:56 Calm 9.00 Fair CLR 28 26.1 92% 30.07 1020.3
07 19:56 Calm 10.00 Fair CLR 30 27 88% 30.07 1020.2
07 18:56 S 5 10.00 Fair CLR 35.1 30.9 45 35.1 85% 32 30.07 1020.3
07 17:56 S 5 10.00 Fair CLR 37 28.9 73% 34 30.08 1020.6
07 16:56 S 3 10.00 Fair CLR 39 28 65% 30.07 1020.2
07 15:56 SE 7 10.00 A Few Clouds FEW035 43 28 56% 39 30.06 1019.7
07 14:56 SW 5 10.00 Mostly Cloudy BKN035 43 28 56% 41 30.05 1019.5
07 13:56 S 6 10.00 Mostly Cloudy BKN033 44.1 28.9 55% 41 30.07 1020.1
07 12:56 S 6 10.00 Mostly Cloudy BKN031 42.1 28 44.1 23 58% 39 30.09 1020.8
07 11:56 SW 8 10.00 Fair CLR 44.1 28 53% 40 30.12 1021.6
07 10:56 S 7 10.00 Fair CLR 42.1 28.9 60% 38 30.14 1022.7
07 09:56 S 5 10.00 Fair CLR 37.9 33.1 83% 35 30.14 1022.6
07 08:56 Calm 7.00 Fair CLR 32 32 100% 30.13 1022.4
07 07:56 Calm 7.00 Fair CLR 25 25 100% 30.11 1021.8
07 06:56 Calm 7.00 Fair CLR 23 23 27 23 100% 30.12 1022.0
07 05:56 Calm 6.00 Fog/Mist CLR 25 25 100% 30.11 1021.7
07 04:56 Calm 6.00 Fog/Mist CLR 25 25 100% 30.09 1021.1
07 03:56 Calm 7.00 Fair CLR 26.1 26.1 100% 30.08 1020.5
07 02:56 Calm 6.00 Fog/Mist CLR 25 25 100% 30.08 1020.5
07 01:56 Calm 5.00 Fog/Mist CLR 26.1 26.1 100% 30.06 1019.9
07 00:56 Calm 3.00 Fog/Mist CLR 27 27 36 27 100% 30.07 1020.0
06 23:56 Calm 3.00 Fog/Mist CLR 28 28 100% 30.06 1019.9
06 22:56 Calm 5.00 Fog/Mist BKN050 30 30 100% 30.03 1019.0
06 21:56 Calm 6.00 Fog/Mist OVC050 28.9 28.9 100% 30.01 1018.3
06 20:56 Calm 7.00 Partly Cloudy SCT055 28 27 96% 30 1017.8
06 19:56 W 3 10.00 Fair CLR 30 30 100% 29.99 1017.8
06 18:56 S 5 10.00 Fair CLR 36 33.1 42.1 36 89% 33 29.98 1017.1
06 17:56 Calm 10.00 Fair CLR 37 28.9 73% 29.97 1016.7
06 16:56 Calm 10.00 Fair CLR 39 28 65% 29.95 1016.0
06 15:56 NW 6 10.00 Fair CLR 41 28 60% 38 29.93 1015.5
06 14:56 W 8 10.00 Fair CLR 42.1 28.9 60% 38 29.91 1014.6
06 13:56 NW 9 10.00 Partly Cloudy SCT120 42.1 30 62% 37 29.91 1014.5
06 12:56 W 9 10.00 Fair CLR 42.1 32 42.1 30 68% 37 29.91 1014.7
06 11:56 W 6 10.00 Fair CLR 42.1 33.1 71% 39 29.93 1015.2
06 10:56 W 5 10.00 Fair CLR 37.9 34 86% 35 29.95 1016.2
06 09:56 Calm 7.00 Partly Cloudy SCT038 39 37 93% 29.96 1016.4
06 08:56 W 5 7.00 Partly Cloudy FEW005 SCT038 34 33.1 97% 30 29.96 1016.5
06 07:56 Calm 3.00 Fog/Mist FEW005 OVC031 30 28.9 96% 29.94 1015.9
06 06:56 Calm 6.00 Unknown Precip Fog/Mist BKN029 OVC033 30 28.9 30.9 28.9 96% 29.95 1016.1
06 05:56 Calm 6.00 Fog/Mist FEW009 OVC027 30 28.9 96% 29.93 1015.5
06 04:56 Calm 7.00 Overcast OVC011 28.9 28 96% 29.93 1015.5
06 03:56 NW 3 5.00 Fog/Mist SCT005 BKN010 OVC015 28.9 28 96% 29.94 1015.7
06 02:56 W 3 5.00 Fog/Mist BKN005 OVC014 28.9 27 92% 29.95 1016.2
06 01:56 Calm 6.00 Fog/Mist OVC014 28.9 27 92% 29.94 1016.0
06 00:56 Calm 3.00 Unknown Precip Fog/Mist BKN012 OVC020 28.9 28 28.9 28 96% 29.95 1016.4
05 23:56 Calm 4.00 Light Snow Fog/Mist OVC010 28.9 28 96% 29.98 1017.1
05 22:56 Calm 10.00 Overcast OVC012 28.9 28.9 100% 29.99 1017.7
05 21:56 Calm 9.00 Overcast OVC006 28 28 100% 30.01 1018.3
05 20:56 Calm 5.00 Fog/Mist OVC006 28 28 100% 30.03 1019.0
05 19:56 Calm 9.00 Overcast OVC006 28 27 96% 30.04 1019.4
05 18:56 Calm 10.00 Overcast OVC008 28 28 30 28 100% 30.04 1019.2
05 17:56 Calm 10.00 Overcast OVC010 28 27 96% 30.05 1019.6
05 16:56 N 3 10.00 Overcast OVC010 28 27 96% 30.07 1020.2
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)