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.
11 19:56 Calm 6.44 Light Rain Fog/Mist OVC005 16.1 16.1 17.8 16.1 100% 75.77 1011.2 0.03 0.36
11 18:56 Calm 16.09 Light Rain OVC005 16.1 16.1 100% 75.82 1012.0 0.03
11 17:56 Calm 11.27 Light Rain OVC005 16.7 16.7 100% 75.84 1012.5 0.08
11 16:56 Vrbl 6 4.02 Light Rain Fog/Mist OVC005 17.8 17.8 100% 75.92 1013.3 0.05 0.23
11 15:56 Vrbl 6 2.82 Light Rain Fog/Mist OVC005 17.8 17.8 100% 75.97 1014.0 0.05
11 14:56 Vrbl 7 4.83 Light Rain Fog/Mist OVC005 16.7 16.7 100% 76.02 1014.8 0.13
11 13:56 Vrbl 7 4.02 Light Rain Fog/Mist BKN005 OVC022 16.1 16.1 16.1 15.6 100% 76.12 1016.1 0.43 3.61
11 12:56 Vrbl 7 8.05 Light Rain Fog/Mist OVC005 16.1 16.1 100% 76.25 1017.7 0.08
11 11:56 Vrbl 11 4.83 Light Rain Fog/Mist OVC007 15.6 15.6 100% 76.35 1019.3 0.48
11 10:56 Vrbl 11 4.02 Rain Fog/Mist BKN007 OVC010 15.6 15.6 100% 76.48 1020.8 1.24 2.62
11 09:56 Calm 3.22 Heavy Rain Fog/Mist OVC007 15.6 15.6 100% 76.61 1022.5 0.97
11 08:56 Vrbl 6 4.83 Heavy Rain Fog/Mist OVC007 15.6 15.6 100% 76.61 1022.5 0.41
11 06:56 Vrbl 11 6.44 Heavy Rain Fog/Mist OVC007 15 15 100% 76.71 1023.9 0.58
11 05:56 Vrbl 7 6.44 Rain BKN007 OVC014 14 0 0% 76.76 1024.5 0.51
11 04:56 Vrbl 6 8.05 Rain SCT022 BKN028 OVC050 14 0 0% 76.78 1025.1 0.41 0.61
11 03:56 Calm 16.09 Rain BKN027 BKN033 OVC055 15 15 100% 76.86 1026.0 0.2
11 02:56 Vrbl 6 16.09 Light Rain BKN080 OVC100 15.6 15 96% 76.91 1026.7
11 01:56 Vrbl 7 16.09 Overcast OVC085 15.6 15 17.2 15.6 96% 76.99 1027.6
11 00:56 Vrbl 6 16.09 Overcast OVC090 15.6 15 96% 77.04 1028.3
10 23:56 Vrbl 6 16.09 Light Rain OVC095 16.7 13.3 80% 77.11 1029.0
10 22:56 Vrbl 6 16.09 Overcast FEW047 OVC100 16.7 12.8 78% 77.14 1029.5
10 21:56 Vrbl 6 16.09 Overcast OVC100 16.7 12.2 75% 77.14 1029.9
10 20:56 E 6 16.09 Overcast FEW044 OVC110 16.7 11.1 70% 77.14 1029.5
10 19:56 Vrbl 6 16.09 Mostly Cloudy SCT048 BKN120 17.2 9.4 20.6 16.7 60% 77.14 1029.6
10 18:56 Vrbl 6 16.09 Fair CLR 17.8 10 60% 77.09 1029.2
10 17:56 Calm 16.09 A Few Clouds FEW110 18.3 11.1 63% 77.11 1029.3
10 16:56 Calm 16.09 A Few Clouds FEW110 18.9 11.7 63% 77.14 1029.8
10 15:56 Calm 16.09 Fair CLR 20 10.6 55% 77.19 1030.2
10 14:56 Vrbl 9 16.09 Fair CLR 20 10.6 55% 77.17 1030.1
10 13:56 Vrbl 6 16.09 Fair CLR 20 11.7 21.1 13.3 59% 77.24 1031.2
10 12:56 Vrbl 9 16.09 Fair CLR 21.1 10 49% 77.24 1031.2
10 11:56 Calm 16.09 Fair CLR 20.6 11.1 55% 77.32 1032.2
10 10:56 Vrbl 6 16.09 Fair CLR 18.3 11.7 66% 77.32 1032.1
10 09:56 Calm 16.09 Fair CLR 16.1 10.6 70% 77.27 1031.4
10 08:56 Calm 16.09 Fair CLR 13.3 10.6 84% 77.19 1030.6
10 07:56 Calm 16.09 Fair CLR 9.4 9.4 10.6 8.9 100% 77.22 1030.9
10 06:56 Calm 16.09 Fair CLR 9.4 9.4 100% 77.14 1030.0
10 04:56 Calm 16.09 Fair CLR 9.4 9.4 100% 77.01 1027.9
10 03:56 Calm 16.09 Fair CLR 9.4 9.4 100% 76.99 1027.6
10 02:56 Calm 16.09 Fair CLR 10 10 100% 77.01 1028.1
10 01:56 Calm 16.09 Fair CLR 10 10 14.4 10 100% 77.01 1028.0
10 00:56 Calm 16.09 Fair CLR 10.6 10.6 100% 76.99 1027.6
09 23:56 Calm 16.09 Fair CLR 11.1 11.1 100% 76.96 1027.5
09 22:56 Calm 16.09 Fair CLR 11.7 11.1 96% 76.96 1027.4
09 21:56 Calm 16.09 Fair CLR 12.2 11.1 93% 76.91 1026.7
09 20:56 Calm 16.09 Fair CLR 13.3 11.1 87% 76.91 1026.9
09 19:56 Calm 16.09 Fair CLR 14.4 8.9 22.8 13.9 70% 76.86 1026.4
09 18:56 SE 6 16.09 Fair CLR 16.1 8.9 63% 76.84 1025.6
09 17:56 Calm 16.09 Fair CLR 18.3 7.2 49% 76.78 1025.0
09 16:56 Calm 16.09 Fair CLR 20 7.2 44% 76.73 1024.3
09 15:56 Vrbl 7 16.09 Fair CLR 21.1 5.6 37% 76.71 1023.9
09 14:56 W 11 16.09 Fair CLR 21.7 4.4 32% 76.73 1024.1
09 13:56 NW 17 16.09 Fair CLR 22.8 5.6 22.8 7.2 33% 76.73 1024.4
09 12:56 W 15 16.09 Fair CLR 22.8 8.3 40% 76.76 1024.8
09 11:56 W 19 16.09 Fair CLR 21.7 8.9 44% 76.78 1025.1
09 10:56 W 9 16.09 Fair CLR 21.1 8.9 46% 76.78 1025.0
09 09:56 W 6 16.09 Fair CLR 17.2 9.4 60% 76.78 1024.9
09 08:56 Calm 16.09 Fair CLR 11.7 11.1 96% 76.76 1024.6
09 07:56 Calm 16.09 Fair CLR 7.2 7.2 8.9 7.2 100% 76.68 1023.9
09 06:56 Calm 16.09 Fair CLR 7.8 7.8 100% 76.66 1023.3
09 05:56 Calm 16.09 Fair CLR 7.8 7.8 100% 76.58 1022.3
09 04:56 Calm 16.09 Fair CLR 7.8 7.8 100% 76.53 1021.7
09 03:56 Calm 16.09 Fair CLR 8.3 8.3 100% 76.5 1021.4
09 02:56 Calm 16.09 Fair CLR 8.9 8.9 100% 76.53 1021.4
09 01:56 Calm 16.09 Fair CLR 8.9 8.9 15 8.9 100% 76.5 1021.5
09 00:56 Calm 16.09 Fair CLR 9.4 9.4 100% 76.5 1021.1
08 23:56 Calm 16.09 Fair CLR 10.6 9.4 92% 76.5 1021.0
08 22:56 Calm 16.09 Fair CLR 11.1 8.9 86% 76.45 1020.7
08 21:56 Calm 16.09 Fair CLR 11.7 8.3 80% 76.43 1020.2
08 20:56 Calm 16.09 Fair CLR 13.3 9.4 77% 76.38 1019.4
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)