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.
18 02:56 Calm 8.00 Fair CLR 71.6 0 0% 29.87 1012.4
18 01:56 Calm 10.00 Fair CLR 71.6 0 75 71.1 0% 29.89 1012.8
18 00:56 Calm 10.00 Fair CLR 71.6 0 0% 29.89 1013.0
17 23:56 Calm 10.00 Fair CLR 71.6 0 0% 29.89 1013.0
17 22:56 Calm 10.00 Mostly Cloudy BKN100 71.6 0 0% 29.89 1013.0
17 21:56 Calm 10.00 Fair CLR 73.4 0 0% 29.89 1013.1
17 20:56 W 7 10.00 Fair CLR 73.9 73.9 100% 29.87 1012.2
17 19:56 W 6 10.00 A Few Clouds FEW120 75.2 0 91 75 0% 29.85 1011.6 0.03
17 18:56 Calm 10.00 Fair CLR 75.9 75.9 100% 75 29.86 1011.9 0.01
17 17:56 Vrbl 5 10.00 Thunderstorm BKN045 BKN055 OVC070 75.9 75.9 100% 75 29.87 1012.5 0.02
17 16:56 W 7 10.00 A Few Clouds FEW048 87.1 73.9 65% 95 29.85 1011.5
17 15:56 Calm 7.00 Overcast BKN044 BKN060 OVC085 88 75 66% 98 29.85 1011.7
17 14:56 Vrbl 7 10.00 Mostly Cloudy BKN040 BKN075 88 73.9 63% 97 29.87 1012.2
17 13:56 W 9 10.00 Overcast BKN039 OVC049 87.1 73.9 88 73.9 65% 95 29.88 1012.7
17 12:56 W 9 10.00 Mostly Cloudy SCT034 BKN042 87.1 75 67% 97 29.9 1013.3
17 11:56 NW 8 10.00 Mostly Cloudy SCT028 BKN034 84.9 73.9 70% 92 29.91 1013.8
17 10:56 NW 8 10.00 Partly Cloudy SCT022 82.9 75.9 79% 91 29.92 1013.9
17 09:56 NW 8 10.00 Partly Cloudy FEW016 SCT065 80.1 77 90% 86 29.91 1013.7
17 08:56 W 7 10.00 Fair CLR 77 77 100% 78 29.91 1013.6
17 07:56 W 7 10.00 Mostly Cloudy BKN100 73.4 0 75 72 0% 29.91 1013.7
17 06:56 W 6 10.00 Overcast OVC047 73.4 0 0% 29.89 1013.0
17 05:56 Calm 8.00 A Few Clouds FEW047 71.6 0 0% 29.87 1012.2
17 04:56 W 6 10.00 Mostly Cloudy SCT039 BKN065 73.4 0 0% 29.87 1012.3
17 03:56 Vrbl 3 10.00 Overcast SCT005 OVC034 73.4 0 0% 29.87 1012.4
17 02:56 Calm 9.00 Mostly Cloudy FEW005 BKN048 BKN070 73.4 0 0% 29.87 1012.3
17 01:56 SW 5 7.00 Overcast OVC003 75.2 0 75 73 0% 29.88 1012.8 0.11
17 00:56 SW 3 10.00 Mostly Cloudy FEW009 BKN070 75.2 0 0% 29.9 1013.4
16 23:56 Calm 10.00 A Few Clouds FEW110 73.4 0 0% 29.91 1013.7
16 22:56 Calm 10.00 A Few Clouds FEW070 73.4 0 0% 29.91 1013.9 0.11
16 21:56 Calm 7.00 A Few Clouds FEW005 73.4 0 0% 29.93 1014.3
16 20:56 S 6 10.00 Mostly Cloudy FEW007 SCT037 BKN100 75.2 0 0% 29.93 1014.3 0.11
16 19:56 SE 7 10.00 Thunderstorm in Vicinity Light Rain FEW016 BKN110 73.4 0 77 71.1 0% 29.93 1014.5 0.03 0.05
16 18:56 SE 8 10.00 Overcast FEW016 BKN030 OVC110 75.9 75 97% 75 29.94 1014.9
16 17:56 S 8 10.00 Mostly Cloudy FEW015 BKN044 BKN080 77 73 88% 78 29.97 1015.6
16 16:56 SE 9 10.00 Overcast OVC015 75.9 73 91% 76 29.98 1016.1 0.02
16 15:56 S 10 10.00 Overcast OVC013 73.9 73.9 100% 30 1016.6
16 14:56 S 9 10.00 Overcast OVC013 72 72 100% 30.02 1017.6 0.02
16 13:56 Vrbl 6 9.00 Light Rain BKN009 OVC017 71.6 0 75 71.1 0% 30.05 1018.6 0.01 0.13
16 12:56 S 8 9.00 Light Rain BKN013 OVC018 72 72 100% 30.07 1019.1 0.03
16 11:56 Calm 5.00 Light Rain FEW022 BKN029 OVC036 71.6 0 0% 30.09 1019.9 0.04
16 09:56 S 7 6.00 Heavy Rain Fog/Mist FEW013 SCT019 OVC046 75 75 100% 72 30.11 1020.5 0.03
16 08:56 SE 7 10.00 Overcast OVC048 73.4 0 0% 30.11 1020.6
16 07:56 SE 8 10.00 Overcast OVC050 73.4 0 75 70 0% 30.12 1020.8 0.02 0.02
16 06:56 S 8 10.00 Overcast FEW011 BKN090 OVC120 75 75 100% 72 30.12 1020.8
16 05:56 SE 5 10.00 Overcast BKN060 OVC090 73.9 73.9 100% 30.11 1020.5
16 04:56 SE 5 10.00 Overcast OVC090 73.9 73 97% 30.11 1020.4
16 03:56 SE 5 10.00 Overcast OVC080 75 71.1 88% 75 30.12 1020.9
16 02:56 SE 5 10.00 Overcast OVC044 73.9 70 88% 30.13 1021.1
16 01:56 SE 5 10.00 Overcast OVC040 75 69.1 78.1 73.9 82% 75 30.14 1021.6
16 00:56 SE 5 10.00 Mostly Cloudy BKN040 BKN110 73.9 69.1 85% 30.16 1022.1
15 23:56 Calm 10.00 Mostly Cloudy BKN110 73.9 69.1 85% 30.16 1022.2
15 22:56 SE 5 10.00 A Few Clouds FEW043 75 68 79% 76 30.16 1022.2
15 21:56 SE 5 10.00 Fair CLR 77 68 74% 79 30.17 1022.3
15 20:56 Calm 10.00 Fair CLR 77 69.1 77% 79 30.16 1022.2
15 19:56 Calm 10.00 Fair CLR 79 66 87.1 79 65% 81 30.14 1021.6
15 18:56 Calm 10.00 Fair CLR 82.9 66.9 59% 86 30.14 1021.5
15 17:56 Calm 10.00 Fair CLR 84.9 66.9 55% 88 30.14 1021.5
15 16:56 Calm 10.00 Mostly Cloudy BKN048 86 66.9 53% 89 30.15 1021.6
15 15:56 Vrbl 3 8.00 Fair CLR 86 66.9 53% 89 30.16 1022.0
15 14:56 Vrbl 3 10.00 Mostly Cloudy BKN047 84.9 66.9 55% 88 30.18 1022.7
15 13:56 Calm 10.00 Mostly Cloudy BKN044 86 68 88 71.1 55% 89 30.19 1023.2
15 12:56 Vrbl 3 10.00 Partly Cloudy SCT040 84.9 68 57% 88 30.2 1023.4
15 11:56 Vrbl 3 10.00 Fair CLR 84 66.9 57% 87 30.21 1023.6
15 10:56 Vrbl 3 10.00 Fair CLR 81 66 61% 83 30.19 1023.2
15 09:56 Vrbl 3 10.00 Fair CLR 78.1 68 71% 80 30.19 1023.1
15 08:56 Vrbl 3 10.00 Fair CLR 73.9 66.9 79% 30.18 1022.9
15 07:56 Vrbl 3 10.00 Fair CLR 71.1 68 72 66.9 90% 30.17 1022.6
15 06:56 Calm 10.00 Fair CLR 69.1 68 96% 30.16 1022.2
15 05:56 Calm 10.00 Fair CLR 69.1 69.1 100% 30.14 1021.4
15 04:56 Calm 10.00 Fair CLR 69.1 69.1 100% 30.12 1021.0
15 03:56 Calm 10.00 Fair CLR 69.1 69.1 100% 30.13 1021.2
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)