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.
09 06:56 SE 7 8.05 Overcast with Haze OVC006 3 0 6.7 2.8 0% 1 76.84 1026.1
09 05:56 SE 9 11.27 Fair CLR 4 0 0% 2 76.78 1025.5
09 04:56 SE 11 14.48 Fair CLR 4.4 4.4 100% 2 76.84 1026.0
09 03:56 S 13 16.09 Fair CLR 5 5 100% 2 76.84 1025.9
09 02:56 SE 11 16.09 Fair CLR 5 4.4 96% 3 76.86 1026.1
09 01:56 S 9 16.09 Fair CLR 6.1 3.9 86% 4 76.84 1026.0
09 00:56 S 9 16.09 Mostly Cloudy BKN110 6.1 3.3 7.8 3.9 82% 4 76.81 1025.6
08 23:56 SE 11 16.09 Fair CLR 5 3.9 93% 3 76.84 1025.9
08 22:56 SE 11 16.09 Fair CLR 5 3.3 89% 3 76.89 1026.7
08 21:56 Calm 16.09 Fair CLR 3.9 3.3 96% 76.89 1026.6
08 20:56 SE 7 16.09 Fair CLR 5 3.3 89% 4 76.89 1027.0
08 19:56 E 6 16.09 Fair CLR 6.1 3.9 86% 76.86 1026.7
08 18:56 SE 7 16.09 Fair CLR 7.8 3.3 13.9 7.8 73% 7 76.86 1026.3
08 17:56 S 7 16.09 Fair CLR 9.4 3.3 66% 9 76.84 1026.3
08 16:56 S 7 16.09 Fair CLR 11.7 2.8 55% 76.78 1025.3
08 15:56 SW 6 16.09 Fair CLR 13.3 2.8 49% 76.76 1025.1
08 14:56 Calm 16.09 Fair CLR 13.3 3.3 51% 76.73 1024.6
08 13:56 SW 11 16.09 Fair CLR 13.3 3.3 51% 76.73 1024.8
08 12:56 SW 6 16.09 Fair CLR 13.3 3.3 13.9 -2.2 51% 76.78 1025.2
08 11:56 S 6 16.09 Fair CLR 12.2 3.3 55% 76.81 1025.7
08 10:56 W 7 16.09 Fair CLR 10.6 3.3 61% 76.86 1026.5
08 09:56 W 7 16.09 Fair CLR 8.9 3.3 68% 8 76.84 1026.1
08 08:56 Calm 16.09 Fair CLR 3.9 3.3 96% 76.73 1024.9
08 07:56 Calm 14.48 Fair CLR -1.7 -1.7 100% 76.71 1024.5
08 06:56 Calm 16.09 Fair CLR -1.7 -1.7 2.8 -1.7 100% 76.63 1023.6
08 05:56 Calm 16.09 Fair CLR -1.1 -1.1 100% 76.58 1022.8
08 04:56 SE 6 16.09 Fair CLR -1.1 -1.1 100% 76.56 1022.3
08 03:56 Calm 16.09 Fair CLR 0 0 100% 76.5 1021.7
08 02:56 Calm 16.09 Fair CLR 1.7 1.7 100% 76.45 1020.8
08 01:56 Calm 16.09 Fair CLR 1.7 1.7 100% 76.4 1020.1
08 00:56 NW 7 16.09 Fair CLR 2.2 1.7 8.9 2.2 97% 0 76.33 1019.4
07 23:56 Calm 16.09 Fair CLR 3.3 2.8 97% 76.35 1019.4
07 22:56 NW 7 16.09 Fair CLR 3.9 3.9 100% 2 76.33 1019.0
07 21:56 Calm 16.09 Fair CLR 4.4 3.3 93% 76.28 1018.6
07 20:56 Calm 16.09 Fair CLR 6.7 3.3 79% 76.25 1018.3
07 19:56 NW 9 16.09 Fair CLR 7.8 3.3 73% 6 76.25 1018.5
07 18:56 Calm 16.09 Fair CLR 8.9 3.3 15 7.2 68% 76.2 1017.7
07 17:56 NW 6 16.09 Fair CLR 9.4 2.8 64% 76.12 1016.6
07 16:56 NW 7 16.09 Fair CLR 11.7 2.8 55% 76.02 1015.3
07 15:56 W 13 16.09 A Few Clouds FEW046 13.3 3.9 53% 75.97 1014.5
07 14:56 W 19 G 35 16.09 A Few Clouds FEW046 14.4 3.9 50% 75.95 1013.9
07 13:56 NW 9 16.09 Overcast OVC048 14.4 3.9 50% 75.87 1013.1
07 12:56 NW 24 16.09 Overcast OVC046 13.3 3.9 14.4 0 53% 75.79 1012.2
07 11:56 W 20 G 30 16.09 Overcast OVC050 13.3 5 57% 75.79 1012.1
07 10:56 NW 7 16.09 Overcast OVC048 12.2 5.6 64% 75.79 1012.0
07 09:56 Calm 16.09 Mostly Cloudy BKN050 8.3 8.3 100% 75.74 1011.4
07 08:56 Calm 6.44 Fair with Haze CLR 4 0 0% 75.69 1010.8
07 06:56 Calm 9.66 Fair with Haze CLR 0 0 0.6 -1.7 0% 75.51 1008.4
07 05:56 Calm 1.61 Fog/Mist VV003 -1 0 0% 75.44 1007.5
07 04:56 Calm 2.82 Fog/Mist CLR -1 0 0% 75.39 1006.8
07 03:56 Calm 4.83 Fog/Mist CLR -1 0 0% 75.36 1006.4
07 02:56 Calm 3.22 Fog/Mist FEW060 0 0 0% 75.39 1006.8
07 01:56 Calm 4.02 Fog/Mist BKN060 -1 0 0% 75.36 1006.6
07 00:56 Calm 4.02 Fog/Mist CLR 1 0 6.1 0.6 0% 75.36 1006.5
06 23:56 Calm 4.02 Fog/Mist CLR 1 0 0% 75.39 1006.8
06 22:56 Calm 6.44 A Few Clouds with Haze FEW095 3 0 0% 75.41 1007.1
06 21:56 Calm 9.66 Fog/Mist SCT070 OVC085 4.4 4.4 100% 75.44 1007.5
06 20:56 Calm 9.66 Fog/Mist FEW065 OVC085 5.6 5.6 100% 75.46 1007.9
06 19:56 Calm 12.87 Overcast OVC080 5.6 5.6 100% 75.51 1008.5
06 18:56 Calm 14.48 Overcast OVC070 5.6 5.6 8.3 5 100% 75.54 1008.9
06 17:56 Calm 16.09 Mostly Cloudy BKN070 5.6 5 96% 75.59 1009.4
06 16:56 Calm 16.09 Overcast OVC016 7.2 5 86% 75.59 1009.6
06 15:56 Calm 16.09 Mostly Cloudy BKN016 BKN090 7.2 5 86% 75.57 1009.2
06 14:56 SE 15 16.09 Fair CLR 8.3 4.4 77% 6 75.57 1009.2
06 13:56 E 7 16.09 Fair CLR 7.8 3.9 77% 7 75.62 1009.9
06 12:56 Calm 16.09 Partly Cloudy SCT007 6.1 2.8 6.1 -1.7 80% 75.74 1011.8
06 11:56 Calm 16.09 Mostly Cloudy SCT007 BKN120 5 1.7 79% 75.84 1013.1
06 10:56 E 7 16.09 Fair CLR 4.4 2.8 89% 3 75.95 1014.3
06 09:56 E 6 16.09 Fair CLR 2.8 2.2 96% 76.05 1015.6
06 08:56 SE 7 16.09 Fair CLR 1.1 1.1 100% -1 76.05 1015.7
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)