Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (est) 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 17:56 Calm 16.09 Fair CLR 3.3 2.8 97% 76.63 1023.6
16 16:56 Calm 16.09 Overcast OVC016 5 2.8 86% 76.61 1023.0
16 15:56 Calm 16.09 Overcast OVC016 5 2.2 82% 76.58 1022.7
16 14:56 Calm 16.09 Overcast OVC014 5 2.2 82% 76.56 1022.5
16 13:56 NW 6 16.09 Overcast OVC012 4.4 2.8 89% 76.56 1022.4
16 12:56 Vrbl 6 16.09 Overcast OVC012 3.9 3.3 3.9 0.6 96% 76.56 1022.6
16 11:56 Calm 9.66 Fog/Mist OVC008 2.8 2.8 100% 76.61 1023.1
16 10:56 NW 9 8.05 Overcast with Haze OVC006 2 0 0% -0 76.58 1022.8
16 09:56 NW 7 6.44 Overcast with Haze OVC006 2 0 0% 0 76.53 1022.2
16 08:56 N 6 6.44 Overcast with Haze OVC006 2 0 0% 76.5 1021.7
16 07:56 Calm 3.22 Fog/Mist OVC004 1 0 0% 76.45 1021.2
16 06:56 Vrbl 6 4.02 Fog/Mist OVC004 1 0 1.7 0.6 0% 76.38 1020.2
16 05:56 Vrbl 7 4.02 Fog/Mist OVC004 1 0 0% -1 76.28 1018.7
16 04:56 Calm 4.02 Fog/Mist OVC004 1 0 0% 76.23 1018.1
16 03:56 Vrbl 9 4.83 Fog/Mist OVC004 1 0 0% -2 76.17 1017.4
16 02:56 N 11 4.02 Fog/Mist OVC004 2 0 0% -1 76.12 1016.6
16 01:56 N 7 4.83 Fog/Mist OVC004 2 0 0% 0 76.07 1016.1
16 00:56 NE 7 4.83 Fog/Mist OVC004 2 0 3.3 1.7 0% 0 76.02 1015.5 0.64
15 23:56 Calm 4.83 Unknown Precip OVC004 2 0 0% 76.07 1016.0 0.1
15 22:56 Vrbl 7 3.22 Light Rain OVC004 2 0 0% 0 76.12 1016.6 0.08
15 21:56 NE 6 3.22 Light Rain OVC004 2 0 0% 76.07 1015.9 0.13 0.46
15 20:56 Calm 4.02 Light Rain OVC004 2 0 0% 76.07 1016.1 0.15
15 19:56 Calm 3.22 Light Rain OVC004 3 0 0% 76.07 1016.1 0.18
15 18:56 Vrbl 6 4.02 Light Rain SCT004 BKN025 OVC044 3 0 8.3 2.8 0% 76.07 1016.1 0.18 0.64
15 17:56 E 6 3.22 Light Rain OVC004 3 0 0% 76.07 1015.9 0.1
15 16:56 E 9 2.41 Light Rain FEW005 BKN015 OVC038 3 0 0% 1 76.05 1015.7 0.18
15 15:56 E 6 4.83 Light Rain BKN020 OVC027 4 0 0% 76.1 1016.4 0.13 0.18
15 14:56 Calm 8.05 Light Rain Fog/Mist BKN033 OVC041 5 5 100% 76.15 1016.8 0.05
15 13:56 SE 6 16.09 Light Rain SCT035 BKN044 OVC050 6.7 1.7 71% 76.2 1017.6
15 12:56 Calm 16.09 Light Rain BKN049 OVC060 7.8 -1.7 8.3 0.6 51% 76.23 1018.1
15 11:56 SE 7 16.09 Overcast OVC060 7.8 -2.2 50% 7 76.3 1018.9
15 10:56 Calm 16.09 Overcast OVC065 7.2 -2.8 49% 76.3 1019.1
15 09:56 Calm 16.09 Overcast OVC095 6.1 -2.2 56% 76.3 1019.2
15 08:56 Calm 16.09 Overcast OVC110 5.6 -1.1 62% 76.3 1019.1
15 07:56 Calm 16.09 A Few Clouds FEW120 2.2 0.6 89% 76.3 1018.9
15 06:56 Calm 16.09 Fair CLR 0.6 -1.1 2.2 -0.6 89% 76.3 1019.2
15 05:56 Calm 16.09 Fair CLR 0 -1.7 88% 76.3 1019.1
15 04:56 Calm 16.09 Fair CLR 0 -1.7 88% 76.3 1018.9
15 03:56 Calm 16.09 Fair CLR 0.6 -2.2 82% 76.3 1019.1
15 02:56 Calm 16.09 Fair CLR 1.1 -1.1 85% 76.33 1019.2
15 01:56 Calm 16.09 Fair CLR 0.6 -1.7 85% 76.38 1020.1
15 00:56 Calm 16.09 Fair CLR 2.2 -1.7 5.6 1.1 76% 76.4 1020.2
14 23:56 Calm 16.09 Fair CLR 1.7 -1.7 78% 76.4 1020.6
14 22:56 Calm 16.09 Fair CLR 1.7 -1.1 82% 76.43 1020.6
14 21:56 Calm 16.09 Fair CLR 3.3 -1.7 70% 76.4 1020.5
14 20:56 Calm 16.09 Fair CLR 3.9 -1.1 70% 76.45 1021.1
14 19:56 Calm 16.09 Fair CLR 5 -2.2 60% 76.45 1021.2
14 18:56 Calm 16.09 Fair CLR 5 -2.2 11.7 5 60% 76.45 1021.4
14 17:56 S 6 16.09 Fair CLR 8.3 -2.2 48% 76.43 1020.7
14 16:56 W 9 16.09 Fair CLR 10.6 -2.8 39% 76.4 1020.3
14 15:56 W 13 16.09 Fair CLR 11.7 -2.8 37% 76.38 1019.9
14 14:56 W 17 16.09 Fair CLR 11.7 -2.8 37% 76.38 1019.9
14 13:56 W 19 G 26 16.09 Fair CLR 11.1 -2.8 38% 76.4 1020.3
14 12:56 W 15 16.09 Fair CLR 10.6 -3.3 10.6 -6.7 38% 76.45 1021.2
14 11:56 W 13 16.09 Fair CLR 8.3 -3.9 42% 6 76.53 1022.2
14 10:56 W 13 16.09 Fair CLR 6.1 -5.6 43% 4 76.61 1023.2
14 09:56 W 7 16.09 A Few Clouds FEW075 3.9 -6.7 46% 2 76.63 1023.7
14 08:56 W 7 16.09 Overcast OVC085 -1.7 -7.2 66% -4 76.66 1024.1
14 07:56 Calm 16.09 Partly Cloudy SCT090 -5 -8.9 74% 76.61 1023.6
14 06:56 Calm 16.09 A Few Clouds FEW100 -6.7 -9.4 -3.3 -6.7 81% 76.61 1023.7
14 05:56 Calm 16.09 Fair CLR -6.1 -8.9 81% 76.61 1023.5
14 04:56 Calm 16.09 Fair CLR -6.1 -8.9 81% 76.61 1023.4
14 03:56 Calm 16.09 Fair CLR -4.4 -10 65% 76.63 1023.8
14 02:56 Calm 16.09 Fair CLR -4.4 -9.4 68% 76.61 1023.5
14 01:56 W 6 16.09 Fair CLR -5.6 -8.9 78% 76.66 1024.2
14 00:56 Calm 16.09 Fair CLR -6.7 -8.3 -2.2 -6.7 89% 76.66 1024.3
13 23:56 Calm 16.09 Fair CLR -5.6 -8.3 82% 76.68 1024.4
13 22:56 Calm 16.09 Fair CLR -5 -8.3 78% 76.71 1024.6
13 21:56 Calm 16.09 Fair CLR -4.4 -8.3 75% 76.68 1024.4
13 20:56 Calm 16.09 Fair CLR -3.9 -8.9 69% 76.68 1024.3
13 19:56 Calm 16.09 Fair CLR -2.2 -8.9 60% 76.71 1024.7
13 18:56 Calm 16.09 Fair CLR -1.7 -9.4 1.7 -1.7 56% 76.68 1024.5
Date Time (est) 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)