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.
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
15 01:56 Calm 10.00 Overcast OVC110 72 72 75.9 72 100% 30.13 1021.2
15 00:56 Calm 10.00 Overcast OVC110 73 73 100% 30.13 1021.4
14 23:56 Calm 10.00 Overcast OVC095 73 73 100% 30.12 1020.8
14 22:56 Calm 10.00 Overcast FEW075 OVC100 73.9 73.9 100% 30.11 1020.4
14 21:56 Calm 10.00 Overcast BKN049 OVC065 73.9 73.9 100% 30.11 1020.4
14 20:56 Calm 10.00 Overcast BKN049 BKN060 OVC075 75 75 100% 72 30.09 1019.8
14 19:56 Calm 10.00 Overcast BKN050 OVC060 75.9 75 81 75 97% 75 30.08 1019.4
14 18:56 Calm 10.00 Overcast OVC050 78.1 73 85% 81 30.07 1019.0
14 17:56 Calm 10.00 Overcast FEW016 OVC050 79 75.9 90% 83 30.06 1018.7
14 16:56 Calm 10.00 Overcast OVC070 79 75 88% 83 30.06 1018.8
14 15:56 Calm 10.00 Mostly Cloudy FEW075 BKN100 80.1 73 79% 84 30.06 1018.8
14 14:56 NW 3 10.00 Mostly Cloudy BKN080 BKN090 78.1 73 85% 81 30.07 1019.1
14 13:56 Calm 10.00 Overcast OVC075 75 73 80.1 73 94% 73 30.09 1019.7 0.01
14 12:56 Vrbl 3 9.00 Light Rain OVC075 73 73 100% 30.11 1020.5 0.01
14 11:56 Calm 9.00 Overcast OVC080 77 73 88% 78 30.11 1020.4
14 10:56 Calm 10.00 Overcast OVC090 77 71.1 82% 79 30.1 1020.1
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)