Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
16 02:56 Calm 16.09 Fair CLR 15 15 100% 77.06 1028.4
16 01:56 S 6 16.09 Fair CLR 17.8 13.3 20.6 16.1 75% 77.06 1028.4
16 00:56 SE 9 16.09 Fair CLR 17.8 13.3 75% 77.06 1028.4
15 23:56 SE 9 16.09 Fair CLR 17.2 13.9 81% 77.11 1029.0
15 22:56 SE 6 16.09 Fair CLR 16.7 13.3 80% 77.11 1029.2
15 21:56 SE 6 16.09 Fair CLR 16.7 12.8 78% 77.11 1029.4
15 20:56 Calm 16.09 Fair CLR 17.8 12.2 70% 77.11 1029.3
15 19:56 Calm 16.09 Fair CLR 20.6 11.7 26.1 20.6 57% 77.06 1028.6
15 18:56 S 7 16.09 Fair CLR 23.9 11.7 46% 25 77.06 1028.5
15 17:56 SE 13 16.09 Fair CLR 25.6 11.1 40% 26 77.06 1028.6
15 16:56 SE 11 16.09 Fair CLR 25 11.7 43% 26 77.06 1028.6
15 15:56 SW 7 16.09 Fair CLR 26.1 11.1 39% 26 77.06 1028.6
15 14:56 Calm 16.09 Fair CLR 25.6 11.7 42% 26 77.11 1029.0
15 13:56 Vrbl 11 16.09 Fair CLR 24.4 10.6 24.4 12.2 42% 25 77.14 1029.7
15 12:56 SE 7 16.09 Fair CLR 22.8 10 44% 77.19 1030.2
15 11:56 Calm 16.09 Fair CLR 22.8 9.4 43% 77.22 1030.5
15 10:56 Vrbl 9 16.09 Fair CLR 21.7 10 47% 77.24 1030.8
15 09:56 E 6 16.09 Fair CLR 18.9 11.7 63% 77.22 1030.7
15 08:56 Vrbl 6 16.09 Fair CLR 16.1 9.4 65% 77.22 1030.6
15 07:56 Calm 16.09 Fair CLR 12.2 9.4 13.9 9.4 83% 77.17 1029.9
15 06:56 Calm 16.09 Fair CLR 10 10 100% 77.14 1029.6
15 05:56 Calm 16.09 Fair CLR 10 10 100% 77.09 1028.8
15 04:56 Calm 16.09 Fair CLR 10.6 10 96% 77.01 1028.1
15 03:56 Calm 16.09 Fair CLR 12.8 9.4 80% 76.99 1027.5
15 02:56 Vrbl 6 16.09 Fair CLR 13.3 10 81% 76.96 1027.3
15 01:56 Calm 16.09 Fair CLR 13.3 11.1 17.8 12.8 87% 76.96 1027.3
15 00:56 Calm 16.09 Fair CLR 14.4 9.4 72% 76.94 1026.8
14 23:56 Calm 16.09 Fair CLR 15 10 72% 76.91 1026.6
14 22:56 Calm 16.09 Fair CLR 15.6 10 70% 76.91 1026.3
14 21:56 Calm 16.09 Fair CLR 16.1 10.6 70% 76.86 1025.7
14 20:56 Vrbl 6 16.09 Fair CLR 17.2 11.1 68% 76.81 1025.3
14 19:56 Calm 16.09 Fair CLR 17.8 11.7 25.6 17.8 68% 76.76 1024.4
14 18:56 Calm 16.09 Fair CLR 21.7 10.6 49% 76.71 1023.7
14 17:56 NW 11 16.09 Fair CLR 23.9 10.6 43% 25 76.66 1022.9
14 16:56 NW 9 G 28 16.09 Fair CLR 23.9 10 42% 25 76.61 1022.4
14 15:56 W 19 G 26 16.09 Fair CLR 24.4 10.6 42% 25 76.61 1022.4
14 14:56 NW 15 16.09 Fair CLR 25 11.1 42% 26 76.58 1021.9
14 13:56 Vrbl 9 16.09 Mostly Cloudy BKN055 24.4 12.2 25.6 20 47% 26 76.58 1022.1
14 12:56 NW 11 16.09 Mostly Cloudy BKN049 23.9 13.3 52% 25 76.61 1022.1
14 11:56 Vrbl 6 G 26 16.09 Mostly Cloudy BKN042 23.9 15 58% 25 76.61 1022.2
14 10:56 Vrbl 7 16.09 Partly Cloudy SCT040 23.9 15 58% 25 76.58 1022.0
14 09:56 Vrbl 7 16.09 Fair CLR 22.8 15.6 64% 76.53 1021.4
14 08:56 Calm 16.09 Fair CLR 21.7 17.2 76% 76.48 1020.4
14 07:56 Calm 16.09 A Few Clouds FEW055 20 20 22.8 19.4 100% 76.4 1019.6
14 06:56 Calm 16.09 Fair CLR 20 20 100% 76.3 1018.2
14 05:56 Calm 16.09 Partly Cloudy SCT055 20.6 20.6 100% 76.23 1017.2
14 04:56 Vrbl 11 16.09 Mostly Cloudy BKN060 22.2 21.7 97% 76.15 1016.0
14 03:56 Vrbl 6 16.09 Fair CLR 22.2 22.2 100% 76.1 1015.4
14 02:56 Calm 16.09 Fair CLR 22 0 0% 76.07 1014.9
14 01:56 W 6 16.09 Fair CLR 22 0 24.4 21.7 0% 76.07 1014.8
14 00:56 Calm 16.09 Fair CLR 23 0 0% 76.05 1014.6
13 23:56 Calm 16.09 Fair CLR 22 0 0% 76.07 1015.1
13 22:56 Calm 16.09 Fair CLR 23 0 0% 76.12 1015.7
13 21:56 Calm 16.09 Mostly Cloudy BKN060 BKN070 23 0 0% 76.12 1015.6
13 20:56 Calm 16.09 Fair CLR 23 0 0% 76.05 1014.8
13 19:56 Calm 16.09 Fair CLR 24.4 24.4 31.1 24.4 100% 24 76 1014.2 0.51
13 18:56 Calm 16.09 Fair CLR 26.1 24.4 90% 28 75.97 1013.7
13 17:56 Calm 16.09 Partly Cloudy SCT037 SCT049 26.7 25 90% 30 75.95 1013.3
13 16:56 Calm 16.09 Fair CLR 28.9 23.3 72% 33 75.95 1013.1 0.51 0.51
13 15:56 Vrbl 7 16.09 Mostly Cloudy BKN035 29.4 22.8 68% 33 75.95 1013.1
13 14:56 NW 9 16.09 Partly Cloudy SCT033 30 22.2 63% 33 75.95 1013.3
13 13:56 W 17 G 26 16.09 Mostly Cloudy SCT032 SCT048 BKN085 28.9 22.2 30 21.7 67% 32 76.02 1014.1
13 12:56 W 11 16.09 A Few Clouds FEW021 28.3 22.8 72% 32 76.05 1014.7
13 11:56 Vrbl 9 16.09 Mostly Cloudy BKN017 27.2 23.3 79% 30 76.12 1015.5
13 10:56 Vrbl 9 16.09 Overcast OVC012 25.6 23.9 90% 27 76.15 1015.9
13 09:56 NW 7 16.09 Overcast OVC006 24.4 23.9 97% 24 76.12 1015.6
13 08:56 Calm 9.66 Overcast with Haze OVC004 22 0 0% 76.1 1015.6
13 07:56 Calm 11.27 Overcast OVC006 22 0 22.8 21.7 0% 76.1 1015.5 0.03
13 06:56 Calm 8.05 Light Rain OVC006 22 0 0% 76.07 1015.2 0.03
13 05:56 Calm 14.48 Light Rain OVC010 22 0 0% 76 1014.2
13 04:56 Calm 16.09 Overcast OVC006 22 0 0% 76.05 1014.9
13 03:56 Calm 16.09 Overcast OVC006 22 0 0% 76.1 1015.3
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)