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.
09 16:56 SW 11 16.09 Fair CLR 23.9 5 29% 25 76.15 1016.5
09 15:56 SW 17 G 26 16.09 Fair CLR 23.9 5 29% 25 76.17 1017.0
09 14:56 SW 15 16.09 Fair CLR 23.9 5.6 31% 25 76.2 1017.1
09 13:56 S 15 G 28 16.09 Fair CLR 23.3 3.9 23.3 4.4 28% 76.25 1017.7
09 12:56 S 19 16.09 Fair CLR 22.8 3.9 29% 76.35 1019.2
09 11:56 Vrbl 7 16.09 Fair CLR 21.1 3.9 32% 76.43 1020.0
09 10:56 Vrbl 6 16.09 Fair CLR 18.9 3.9 37% 76.45 1020.5
09 09:56 W 6 16.09 Fair CLR 14.4 3.9 50% 76.5 1021.3
09 07:56 Calm 16.09 Fair CLR 4.4 3.3 10.6 4.4 93% 76.38 1019.7
09 06:56 Calm 16.09 Fair CLR 5 2.8 86% 76.3 1018.7
09 05:56 SE 6 16.09 Fair CLR 6.1 2.2 76% 76.25 1017.8
09 04:56 Calm 16.09 Fair CLR 6.1 1.7 74% 76.2 1017.2
09 03:56 Calm 16.09 Fair CLR 7.8 1.7 66% 76.17 1016.8
09 02:56 Calm 16.09 Fair CLR 7.8 2.2 68% 76.2 1017.1
09 01:56 Calm 16.09 Fair CLR 8.9 1.1 17.2 7.2 58% 76.23 1017.4
09 00:56 Calm 16.09 Fair CLR 9.4 1.1 56% 76.2 1017.2
08 23:56 Calm 16.09 Fair CLR 8.9 3.3 68% 76.2 1017.1
08 22:56 Calm 16.09 Fair CLR 10 3.3 63% 76.17 1016.8
08 21:56 SE 9 16.09 Fair CLR 11.1 4.4 64% 76.12 1016.1
08 20:56 Calm 16.09 Fair CLR 12.2 6.7 69% 76.05 1015.2
08 19:56 NW 9 16.09 Fair CLR 16.7 5 22.2 16.7 46% 76.02 1014.7
08 18:56 NW 11 16.09 Fair CLR 19.4 7.2 45% 75.97 1014.0
08 17:56 W 17 16.09 Fair CLR 20.6 7.2 42% 75.9 1013.1
08 16:56 W 19 16.09 A Few Clouds FEW060 21.7 7.8 41% 75.87 1012.9
08 15:56 W 26 16.09 Fair CLR 21.7 9.4 46% 75.84 1012.5
08 14:56 W 24 16.09 A Few Clouds FEW060 21.7 12.2 55% 75.82 1012.1
08 13:56 W 11 16.09 Mostly Cloudy SCT045 BKN055 21.1 12.8 21.1 13.3 59% 75.82 1012.2
08 12:56 W 13 16.09 Mostly Cloudy BKN037 21.1 13.3 61% 75.87 1012.6
08 11:56 SW 9 16.09 A Few Clouds FEW047 21.1 14.4 66% 75.9 1013.2
08 10:56 W 9 16.09 A Few Clouds FEW044 19.4 15 76% 75.92 1013.3
08 09:56 Calm 16.09 Fair CLR 17 0 0% 75.9 1012.9
08 08:56 Calm 14.48 Overcast SCT060 OVC095 14 0 0% 75.9 1012.9
08 07:56 Calm 2.82 Fog/Mist OVC100 13 0 15 10.6 0% 75.84 1012.4
08 06:56 Calm 9.66 Overcast with Haze BKN090 OVC100 13 0 0% 75.82 1011.9
08 05:56 SW 6 9.66 Overcast with Haze OVC080 13 0 0% 75.82 1012.2
08 04:56 Calm 4.83 Fog/Mist SCT095 12 0 0% 75.77 1011.5
08 03:56 Calm 2.41 Fog/Mist CLR 12 0 0% 75.74 1011.3
08 01:56 SE 6 3.22 Fog/Mist CLR 12 0 0% 75.79 1011.9
08 00:56 SE 7 11.27 Partly Cloudy SCT080 12 0 15 11.7 0% 75.84 1012.5 0.05
07 23:56 SE 6 9.66 Light Rain BKN110 12 0 0% 75.9 1013.4 0.05
07 22:56 E 6 12.87 Mostly Cloudy SCT032 SCT045 BKN055 12 0 0% 76 1014.6
07 21:56 Calm 16.09 Fair CLR 13 0 0% 75.97 1014.4
07 20:56 SE 9 16.09 Fair CLR 15 15 100% 75.9 1013.4
07 19:56 SE 11 16.09 Fair CLR 14.4 14.4 100% 75.95 1013.8
07 18:56 SE 11 16.09 Fair CLR 14.4 14.4 15 9.4 100% 76.02 1014.8
07 17:56 SE 11 16.09 Fair CLR 14.4 12.8 90% 76.07 1015.4
07 16:56 SE 11 16.09 Fair CLR 13.9 12.2 90% 76.1 1016.0
07 15:56 SE 13 14.48 Overcast OVC008 11.7 11.7 100% 76.15 1016.8
07 14:56 SE 15 11.27 Overcast OVC006 11.1 11.1 100% 76.28 1018.4
07 13:56 SE 9 11.27 Overcast OVC006 10 10 100% 9 76.38 1019.7
07 12:56 SE 11 8.05 Overcast with Haze OVC004 9 0 9.4 4.4 0% 8 76.48 1021.3
07 11:56 SE 9 8.05 Overcast with Haze OVC004 8 0 0% 7 76.58 1022.7
07 10:56 S 13 9.66 Overcast with Haze OVC004 7 0 0% 5 76.66 1023.5
07 09:56 S 13 1.21 Fog/Mist OVC002 7 0 0% 5 76.68 1024.1
07 08:56 SE 11 0.40 Fog OVC002 6 0 0% 4 76.78 1025.3
07 07:56 SE 11 0.80 Fog OVC002 4 0 0% 2 76.81 1025.9
07 06:56 SE 11 0.80 Fog OVC002 4 0 5 3.9 0% 2 76.84 1026.1
07 05:56 SE 11 1.61 Fog/Mist OVC002 4 0 0% 2 76.86 1026.4
07 04:56 SE 13 2.41 Fog/Mist OVC002 4 0 0% 1 76.86 1026.3
07 03:56 E 7 2.82 Fog/Mist OVC002 4 0 0% 2 76.94 1027.2
07 02:56 SE 11 2.82 Fog/Mist OVC002 4 0 0% 2 76.96 1027.6
07 01:56 SE 11 4.02 Fog/Mist OVC002 5 0 0% 3 76.99 1028.2
07 00:56 SE 9 4.83 Fog/Mist OVC004 6 0 6.7 5.6 0% 4 77.04 1028.9
06 23:56 SE 9 8.05 Overcast with Haze OVC004 6 0 0% 4 77.06 1029.1
06 22:56 SE 13 8.05 Overcast with Haze OVC004 6 0 0% 4 77.09 1029.4
06 21:56 E 7 4.02 Fog/Mist OVC002 6 0 0% 5 77.14 1030.1
06 20:56 E 7 2.41 Fog/Mist OVC002 6 0 0% 5 77.11 1029.9
06 19:56 E 7 1.61 Fog/Mist OVC002 6 0 0% 5 77.09 1029.5
06 18:56 E 7 2.82 Fog/Mist OVC004 7 0 8.9 6.7 0% 6 77.06 1029.1
06 17:56 E 11 4.83 Fog/Mist OVC004 7 0 0% 5 77.04 1028.8
06 16:56 E 9 8.05 Overcast with Haze OVC006 8 0 0% 7 76.99 1028.1
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)