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.
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
13 17:56 Calm 16.09 Fair CLR 0.6 -10.6 43% 76.68 1024.5
13 16:56 NW 7 16.09 Fair CLR 1.7 -10.6 40% -0 76.68 1024.3
13 15:56 NW 15 16.09 Fair CLR 1.7 -10 42% -2 76.66 1024.2
13 14:56 NW 20 16.09 Fair CLR 1.1 -10 44% -3 76.68 1024.3
13 13:56 NW 15 16.09 Fair CLR 0.6 -10 45% -3 76.71 1024.7
13 12:56 W 20 G 28 16.09 Fair CLR 0 -8.9 1.1 -5 52% -5 76.76 1025.4
13 11:56 NW 15 16.09 Fair CLR -0.6 -8.9 54% -5 76.81 1026.2
13 10:56 NW 13 G 26 16.09 Fair CLR -1.7 -9.4 56% -6 76.86 1026.7
13 09:56 NW 13 16.09 Fair CLR -2.2 -10 56% -6 76.89 1027.0
13 08:56 Vrbl 9 16.09 Fair CLR -3.3 -10 60% -7 76.86 1026.7
13 07:56 Vrbl 7 16.09 Fair CLR -4.4 -11.1 60% -7 76.81 1026.3
13 06:56 Vrbl 7 16.09 Fair CLR -5 -11.7 -2.8 -5 60% -8 76.76 1025.6
13 05:56 NW 13 16.09 Fair CLR -5 -11.1 63% -10 76.73 1025.0
13 04:56 NW 7 16.09 Fair CLR -4.4 -10.6 62% -7 76.71 1024.7
13 03:56 NW 11 16.09 Fair CLR -3.9 -10 63% -8 76.66 1024.1
13 02:56 N 6 16.09 Overcast OVC036 -3.3 -9.4 63% 76.66 1024.3
13 01:56 NW 7 16.09 Overcast OVC038 -3.3 -9.4 63% -6 76.66 1024.2
13 00:56 NW 7 16.09 A Few Clouds FEW038 -2.8 -8.9 -1.1 -2.8 63% -5 76.66 1024.0
12 23:56 Vrbl 7 16.09 Partly Cloudy SCT038 -2.2 -8.3 63% -5 76.63 1023.7
12 22:56 Vrbl 7 16.09 Overcast OVC038 -1.7 -8.3 61% -4 76.61 1023.4
12 21:56 Vrbl 6 16.09 Overcast OVC040 -1.7 -8.3 61% 76.61 1023.5
12 20:56 NW 7 16.09 Overcast OVC042 -1.1 -8.3 58% -3 76.63 1023.6
12 19:56 NW 11 16.09 Mostly Cloudy BKN044 -1.1 -8.9 56% -5 76.61 1023.5
12 18:56 NW 19 G 30 16.09 Partly Cloudy SCT046 -1.1 -8.3 1.7 -1.1 58% -6 76.61 1023.4
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)