Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
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.
29 14:56 W 9 G 17 10.00 Fair CLR 75.9 48.9 39% 78 29.96 1015.7
29 13:56 Vrbl 5 10.00 Fair CLR 75 48.9 77 60.1 40% 77 29.99 1016.6
29 12:56 NW 7 10.00 Fair CLR 73 48 41% 30.03 1018.0
29 11:56 Vrbl 7 10.00 Fair CLR 72 48 43% 30.07 1019.2
29 10:56 Calm 10.00 Fair CLR 70 48 46% 30.09 1019.9
29 09:56 Calm 10.00 Fair CLR 69.1 48.9 49% 30.1 1020.3
29 08:56 Vrbl 5 10.00 Fair CLR 64.9 50 59% 30.11 1020.6
29 07:56 Calm 10.00 Fair CLR 60.1 48.9 60.1 48 67% 30.11 1020.6
29 05:56 Calm 10.00 Fair CLR 48.2 0 0% 30.09 1020.4
29 04:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.08 1019.8
29 03:56 Calm 10.00 Fair CLR 50 50 100% 30.07 1019.5
29 02:56 Calm 10.00 Fair CLR 51.1 50 96% 30.08 1019.7
29 01:56 Calm 10.00 Fair CLR 53.1 50 72 53.1 89% 30.09 1019.9
29 00:56 Calm 10.00 Fair CLR 55.9 48 75% 30.08 1019.7
28 23:56 Calm 10.00 Fair CLR 59 46.9 64% 30.08 1019.7
28 22:56 Vrbl 3 10.00 Fair CLR 62.1 46 56% 30.08 1019.5
28 21:56 Vrbl 3 10.00 Fair CLR 64 48 56% 30.05 1018.5
28 20:56 Vrbl 3 10.00 Fair CLR 66.9 50 55% 30.01 1017.1
28 19:56 Vrbl 3 10.00 Fair CLR 72 48 79 72 43% 29.98 1016.2
28 18:56 Vrbl 6 10.00 Fair CLR 73 48 41% 29.97 1015.7
28 17:56 NW 8 10.00 Mostly Cloudy SCT080 BKN095 75.9 48.9 39% 78 29.96 1015.5
28 16:56 NW 8 G 16 10.00 Mostly Cloudy BKN080 78.1 48.9 36% 79 29.95 1015.3
28 15:56 Vrbl 6 8.00 A Few Clouds FEW090 79 50 36% 79 29.95 1015.2
28 14:56 NW 10 G 21 10.00 Fair CLR 79 48.9 35% 79 29.96 1015.4
28 13:56 NW 12 G 21 10.00 Partly Cloudy SCT075 77 48.9 78.1 68 37% 78 29.98 1016.0
28 12:56 Vrbl 7 G 16 10.00 Mostly Cloudy BKN065 75 53.1 46% 78 29.98 1016.4
28 11:56 NW 9 10.00 A Few Clouds FEW055 75 51.1 43% 78 29.98 1016.2
28 10:56 NW 9 10.00 Fair CLR 73.9 55 52% 29.97 1016.0
28 09:56 NW 9 G 16 10.00 Fair CLR 72 53.1 52% 29.97 1015.8
28 08:56 NW 7 G 16 10.00 Partly Cloudy SCT110 70 57.9 66% 29.96 1015.5
28 07:56 NW 6 10.00 Fair CLR 69.1 66 69.1 63 90% 29.95 1015.2
28 06:56 Vrbl 5 10.00 Mostly Cloudy BKN095 64.4 0 0% 29.93 1014.7
28 05:56 Calm 10.00 Partly Cloudy SCT085 64.4 0 0% 29.91 1013.7
28 04:56 NW 5 10.00 Fair CLR 66.2 0 0% 29.89 1013.0
28 03:56 NW 5 10.00 Fair CLR 66.2 0 0% 29.87 1012.6
28 02:56 W 3 10.00 Overcast OVC110 66.2 0 0% 29.87 1012.5
28 01:56 W 5 10.00 Overcast OVC110 68 0 75 68 0% 29.87 1012.5 0.01 0.03
28 00:56 W 6 10.00 Overcast OVC110 69.8 0 0% 29.88 1013.0
27 23:56 W 6 10.00 Overcast OVC110 69.8 0 0% 29.89 1013.3
27 22:56 W 3 10.00 A Few Clouds FEW120 69.8 0 0% 29.89 1013.3 0.02
27 21:56 W 5 10.00 Mostly Cloudy BKN120 71.6 0 0% 29.89 1013.2
27 20:56 Calm 10.00 A Few Clouds FEW110 71.1 71.1 100% 29.87 1012.6 0.02
27 19:56 SW 3 10.00 Mostly Cloudy BKN110 73.9 72 80.1 73.9 94% 29.9 1013.3
27 18:56 W 3 10.00 Fair CLR 75.9 71.1 85% 76 29.88 1012.8
27 17:56 NW 3 10.00 Fair CLR 78.1 70 76% 80 29.88 1012.6
27 16:56 W 6 10.00 A Few Clouds FEW022 79 71.1 77% 82 29.9 1013.2
27 15:56 NW 6 10.00 Partly Cloudy SCT037 78.1 73.9 87% 81 29.91 1013.9
27 14:56 NW 8 10.00 Overcast BKN014 BKN019 OVC029 77 75 94% 78 29.92 1014.1
27 13:56 NW 7 10.00 Mostly Cloudy SCT008 BKN013 73 73 73.9 70 100% 29.93 1014.7 0.01 0.31
27 12:56 W 5 10.00 Light Rain BKN010 BKN032 OVC070 71.6 0 0% 29.96 1015.7 0.03
27 11:56 W 8 10.00 Overcast SCT014 BKN032 OVC070 73 73 100% 30 1016.8
27 10:56 Vrbl 5 10.00 A Few Clouds FEW009 73.9 73.9 100% 29.98 1016.4 0.01 0.27
27 09:56 W 3 1.00 Heavy Rain BKN006 OVC009 69.8 0 0% 30 1016.7 0.26
27 08:56 W 5 9.00 Overcast OVC004 71.6 0 0% 29.98 1016.2
27 07:56 Calm 5.00 Overcast with Haze OVC004 71.6 0 71.1 66.9 0% 29.99 1016.5
27 06:56 Calm 3.00 Fog/Mist OVC004 69.8 0 0% 29.99 1016.5
27 05:56 Calm 5.00 Overcast with Haze OVC006 69.8 0 0% 29.99 1016.5
27 04:56 Calm 9.00 Overcast OVC008 69.8 0 0% 30 1016.8
27 03:56 Calm 10.00 Overcast OVC006 69.8 0 0% 30 1016.7
27 02:56 SE 3 10.00 Overcast OVC010 69.8 0 0% 30 1017.0
27 01:56 Calm 10.00 Overcast OVC012 68 0 70 66.9 0% 30.02 1017.5
27 00:56 Calm 10.00 Overcast BKN016 OVC100 69.8 0 0% 30.04 1018.4
26 23:56 Calm 10.00 Partly Cloudy FEW090 SCT110 66.2 0 0% 30.05 1018.6
26 22:56 Calm 10.00 A Few Clouds FEW018 69.1 69.1 100% 30.07 1019.4
26 21:56 SE 3 10.00 Mostly Cloudy BKN022 68 68 100% 30.08 1019.6
26 20:56 Calm 10.00 Partly Cloudy SCT022 68 68 100% 30.08 1019.5
26 19:56 Calm 10.00 Mostly Cloudy BKN037 70 69.1 75.9 70 97% 30.08 1019.5
26 18:56 Calm 10.00 Mostly Cloudy BKN043 BKN100 71.1 70 96% 30.08 1019.6
26 17:56 SE 6 10.00 Mostly Cloudy FEW047 SCT055 BKN100 73.9 66 76% 30.09 1019.8
26 16:56 SE 5 10.00 Overcast OVC044 72 66 82% 30.1 1020.3
26 15:56 Vrbl 3 10.00 Overcast BKN050 OVC065 75.9 63 64% 78 30.1 1020.5
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)