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.
19 20:56 Calm 10.00 Fair CLR 70 61 73% 29.95 1015.2
19 19:56 Calm 10.00 Fair CLR 75.9 61 84.9 75.9 60% 78 29.94 1014.7
19 18:56 Calm 10.00 Fair CLR 80.1 63 56% 81 29.91 1013.8
19 17:56 Vrbl 6 10.00 Fair CLR 81 63 54% 82 29.91 1013.5
19 16:56 Vrbl 3 10.00 Fair CLR 81 66 61% 83 29.9 1013.2
19 15:56 Vrbl 3 10.00 Fair CLR 82 66 58% 84 29.89 1013.1
19 14:56 Vrbl 7 8.00 Fair CLR 82 66.9 60% 85 29.91 1013.5
19 13:56 Vrbl 7 9.00 A Few Clouds FEW044 84 68 84 75 59% 87 29.91 1013.5
19 12:56 Vrbl 6 8.00 Mostly Cloudy SCT038 BKN046 80.1 68 67% 83 29.92 1014.1
19 11:56 Vrbl 5 9.00 Partly Cloudy FEW032 SCT043 82 68 63% 85 29.92 1013.9
19 10:56 Vrbl 3 9.00 A Few Clouds FEW070 82 70 67% 86 29.91 1013.7
19 09:56 Calm 9.00 Mostly Cloudy BKN080 80.1 72 76% 84 29.91 1013.7
19 08:56 Calm 10.00 A Few Clouds FEW080 78.1 73 85% 81 29.89 1013.1
19 07:56 Calm 10.00 A Few Clouds FEW090 73.9 73.9 73.9 70 100% 29.88 1012.8
19 06:56 Calm 10.00 Fair CLR 69.8 0 0% 29.86 1012.1
19 05:56 W 3 10.00 Fair CLR 71.6 0 0% 29.85 1011.9
19 04:56 NW 3 10.00 Partly Cloudy SCT037 71.6 0 0% 29.83 1010.9
19 03:56 W 6 10.00 Mostly Cloudy BKN055 71.6 0 0% 29.81 1010.4
19 02:56 Calm 8.00 Fair CLR 73.4 0 0% 29.82 1010.5
19 01:56 Calm 10.00 Fair CLR 73.4 0 77 73.9 0% 29.81 1010.1
19 00:56 Calm 10.00 Fair CLR 75.2 0 0% 29.8 1010.1
18 23:56 Calm 9.00 Overcast OVC041 75.2 0 0% 29.81 1010.1
18 22:56 Calm 10.00 Fair CLR 75.2 0 0% 29.81 1010.2
18 21:56 Calm 4.00 Fair with Haze CLR 73.4 0 0% 29.8 1010.1
18 20:56 Calm 6.00 Fair with Haze CLR 73.4 0 0% 29.81 1010.2
18 19:56 Calm 10.00 A Few Clouds FEW044 77 77 95 72 100% 78 29.81 1010.3 0.38
18 18:56 NW 3 8.00 Fair CLR 75.2 0 0% 29.8 1010.2
18 17:56 SW 3 10.00 Fair CLR 75.9 75.9 100% 75 29.79 1009.7 0.01
18 16:56 Calm 7.00 Thunderstorm Light Rain SCT044 SCT060 BKN110 73.4 0 0% 29.88 1012.8 0.37
18 15:56 Calm 5.00 Thunderstorm in Vicinity Light Rain FEW027 SCT048 BKN070 71.6 0 0% 29.85 1011.6 0.37
18 14:56 SW 5 7.00 Thunderstorm FEW045 BKN095 BKN120 90 73.9 59% 99 29.83 1011.1
18 13:56 S 7 5.00 Fair with Haze CLR 93.9 77 93.9 73.9 58% 108 29.85 1011.6
18 12:56 Vrbl 6 5.00 Mostly Cloudy with Haze BKN070 88 75.9 68% 99 29.9 1013.5
18 11:56 S 5 4.00 Fair with Haze CLR 84.9 75.9 75% 94 29.93 1014.4
18 10:56 S 6 4.00 Fair with Haze CLR 82 75.9 82% 89 29.96 1015.1
18 09:56 S 7 4.00 Partly Cloudy with Haze SCT014 80.1 75 85% 85 29.97 1015.7
18 08:56 SE 7 3.00 Fog/Mist OVC014 77 75 94% 78 29.98 1016.0
18 07:56 SE 10 3.00 Fog/Mist BKN032 OVC038 73.9 73.9 75.9 72 100% 29.97 1015.6 0.03
18 06:56 Vrbl 3 2.00 Fog/Mist BKN029 OVC037 73.4 0 0% 29.99 1016.2
18 05:56 Vrbl 3 2.00 Fog/Mist BKN020 OVC028 73.4 0 0% 30 1016.8
18 04:56 Calm 4.00 Thunderstorm in Vicinity Light Rain Fog/Mist BKN038 BKN048 OVC095 73 73 100% 30.02 1017.3 0.03 0.03
18 03:56 S 3 5.00 Mostly Cloudy with Haze BKN044 BKN070 75.9 69.1 79% 77 30.02 1017.3
18 02:56 Calm 5.00 Fog/Mist OVC055 73 70 90% 30.04 1018.2
18 01:56 Calm 5.00 Overcast with Haze BKN041 OVC050 73 68 81 71.1 84% 30.04 1018.1
18 00:56 Calm 5.00 Fog/Mist BKN045 OVC060 72 71.1 97% 30.06 1018.6
17 23:56 Calm 5.00 Fog/Mist OVC045 73 69.1 87% 30.06 1018.9
17 22:56 Calm 5.00 Overcast with Haze OVC047 73.9 69.1 85% 30.07 1018.9
17 21:56 Calm 5.00 Overcast with Haze OVC049 73.9 69.1 85% 30.07 1019.0
17 20:56 Calm 4.00 Overcast with Haze OVC049 75.9 66.9 74% 77 30.06 1018.7
17 19:56 Calm 4.00 Overcast with Haze BKN036 OVC047 81 64.9 87.1 80.1 58% 83 30.05 1018.3
17 18:56 Calm 4.00 Overcast with Haze OVC035 82.9 66.9 59% 86 30.05 1018.3
17 17:56 Calm 4.00 Overcast with Haze OVC032 84.9 66.9 55% 88 30.05 1018.4
17 16:56 Vrbl 3 3.00 Overcast with Haze OVC032 87.1 66.9 51% 90 30.07 1018.9
17 15:56 Calm 3.00 Overcast with Haze OVC030 86 66.9 53% 89 30.08 1019.3
17 14:56 Calm 3.00 Overcast with Haze OVC028 86 68 55% 89 30.1 1019.9
17 13:56 Calm 3.00 Overcast with Haze BKN025 OVC030 84 66 87.1 72 55% 86 30.1 1020.1
17 12:56 Vrbl 3 3.00 Overcast with Haze BKN026 OVC031 86 66.9 53% 89 30.11 1020.5
17 11:56 Calm 3.00 Overcast with Haze BKN027 OVC031 86 64.9 49% 88 30.11 1020.5
17 10:56 Calm 3.00 Overcast with Haze OVC029 82.9 60.1 46% 83 30.11 1020.3
17 09:56 Calm 3.00 Overcast with Haze BKN030 BKN035 OVC044 81 62.1 53% 82 30.1 1020.2
17 08:56 Calm 2.50 Overcast with Haze FEW027 BKN033 OVC043 77 61 58% 79 30.11 1020.5
17 07:56 Calm 1.50 Overcast with Haze SCT033 OVC041 72 64 73.9 66 76% 30.1 1020.1
17 06:56 Calm 1.50 Fog/Mist SCT035 OVC043 66 63 90% 30.09 1019.7
17 05:56 Calm 1.25 Fog/Mist OVC042 66 63 90% 30.07 1019.2
17 04:56 Calm 2.50 Overcast with Haze OVC040 70 57 64% 30.06 1018.8
17 03:56 Calm 2.50 Overcast with Haze OVC036 73.9 57 56% 30.05 1018.2
17 02:56 Calm 2.50 Overcast with Haze OVC045 71.1 62.1 73% 30.04 1018.2
17 01:56 Calm 2.50 Overcast with Haze OVC033 73 60.1 88 73 64% 30.03 1017.8
17 00:56 Calm 2.50 Overcast with Haze OVC032 75.9 61 60% 78 30.03 1017.6
16 23:56 Calm 3.00 Overcast with Haze BKN032 OVC043 79 66.9 67% 81 30.02 1017.1
16 22:56 Calm 6.00 Overcast with Haze OVC039 79 72 79% 82 30 1016.5
16 21:56 Calm 9.00 Overcast OVC039 82 73.9 77% 88 29.97 1015.7
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)