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.
13 14:56 Vrbl 9 16.09 Overcast OVC037 8.3 0.6 59% 7 75.46 1007.7
13 13:56 Vrbl 9 16.09 Overcast OVC041 8.3 -0.6 54% 7 75.44 1007.1
13 12:56 N 13 16.09 Mostly Cloudy BKN041 9.4 -0.6 10.6 6.1 50% 8 75.41 1007.0
13 11:56 N 13 16.09 Overcast OVC037 10 0 50% 8 75.41 1006.8
13 10:56 Vrbl 9 16.09 Overcast OVC033 8.9 0 54% 8 75.44 1007.1
13 09:56 Vrbl 9 G 26 16.09 Overcast OVC031 6.7 -0.6 60% 5 75.41 1006.9
13 07:56 N 13 G 33 16.09 Mostly Cloudy FEW029 BKN045 6.1 0 65% 4 75.31 1005.4
13 06:56 Vrbl 11 G 37 16.09 Overcast BKN030 OVC035 6.1 0 8.3 6.1 65% 4 75.23 1004.3
13 05:56 Vrbl 9 G 28 16.09 Overcast OVC030 6.1 1.1 71% 4 75.18 1003.7
13 04:56 NW 17 G 26 16.09 Overcast OVC032 6.1 0.6 68% 3 75.13 1003.1
13 03:56 Vrbl 11 G 26 16.09 Overcast OVC030 6.7 1.1 68% 5 75.11 1002.8
13 02:56 Vrbl 11 G 31 16.09 Overcast OVC028 7.2 1.7 68% 5 75.08 1002.5
13 01:56 NW 15 G 30 16.09 Overcast OVC024 7.8 2.8 71% 6 75.06 1001.8
13 00:56 NW 13 G 30 16.09 Overcast OVC028 8.3 3.3 12.2 8.3 71% 6 75.03 1001.5
12 23:56 NW 22 G 30 16.09 Overcast OVC026 8.3 3.9 74% 5 74.98 1001.1
12 22:56 NW 22 G 33 16.09 Overcast OVC041 8.9 4.4 74% 6 74.98 1000.9
12 21:56 Vrbl 11 16.09 Mostly Cloudy FEW027 BKN045 10 5 71% 9 74.98 1001.1
12 20:56 Vrbl 11 16.09 Mostly Cloudy BKN035 10.6 5.6 71% 74.93 1000.4
12 19:56 NW 17 G 31 16.09 Overcast SCT035 OVC043 11.1 5.6 69% 74.9 999.9
12 18:56 W 24 G 33 16.09 Overcast OVC037 12.2 6.1 16.7 12.2 67% 74.88 999.7
12 17:56 NW 22 G 31 16.09 Mostly Cloudy BKN048 12.8 6.1 64% 74.85 999.1
12 16:56 W 22 16.09 Overcast SCT031 BKN044 OVC050 13.9 8.3 69% 74.78 998.5
12 15:56 NW 13 16.09 Overcast FEW044 OVC055 15 8.9 67% 74.75 997.8
12 14:56 W 17 16.09 Mostly Cloudy BKN090 BKN110 16.1 8.9 63% 74.73 997.4
12 13:56 NW 17 G 26 16.09 A Few Clouds FEW025 16.1 10 67% 74.7 997.3
12 12:56 W 7 16.09 A Few Clouds FEW019 15.6 10.6 16.7 11.1 72% 74.75 997.8 0.05
12 11:56 W 11 16.09 Mostly Cloudy BKN013 15 12.2 83% 74.83 998.9
12 10:56 Vrbl 6 14.48 Overcast SCT006 OVC080 13.3 13.3 100% 74.88 999.6 0.03
12 09:56 NE 6 4.83 Light Rain Fog/Mist SCT006 SCT012 OVC070 11.7 11.7 100% 74.96 1000.7 0.03 0.03
12 08:56 SW 7 8.05 Light Rain Fog/Mist OVC004 11.7 11.7 100% 75.01 1001.4
12 07:56 SE 11 1.21 Fog/Mist OVC002 11.7 11.7 100% 75.01 1001.4
12 06:56 E 7 0.40 Fog OVC002 11.1 11.1 11.1 7.8 100% 75.03 1001.7
12 05:56 Calm 11.27 Overcast OVC004 10.6 10 96% 75.11 1002.5
12 04:56 Calm 9.66 Fog/Mist OVC006 8.3 8.3 100% 75.16 1003.4
12 03:56 Calm 16.09 Fair CLR 8.9 8.9 100% 75.18 1003.6
12 02:56 Calm 16.09 Fair CLR 8.9 8.9 100% 75.26 1004.5
12 01:56 Calm 16.09 A Few Clouds FEW085 9.4 9.4 100% 75.34 1005.5
12 00:56 Calm 16.09 Partly Cloudy SCT090 10 10 13.9 10 100% 75.41 1006.6
11 23:56 Calm 16.09 Overcast OVC090 11.7 10 89% 75.46 1007.4
11 22:56 SE 7 16.09 Mostly Cloudy BKN080 11.7 8.3 80% 75.51 1008.0
11 21:56 SE 11 16.09 A Few Clouds FEW080 12.2 7.8 75% 75.57 1008.8
11 20:56 SE 7 16.09 Fair CLR 12.8 7.2 69% 75.64 1009.7
11 19:56 E 7 16.09 Fair CLR 12.8 6.1 64% 75.67 1010.1
11 17:56 SE 9 16.09 Fair CLR 15.6 7.2 58% 75.74 1011.3
11 16:56 SE 9 16.09 Mostly Cloudy BKN070 16.7 6.7 52% 75.79 1011.8
11 15:56 SE 13 16.09 Fair CLR 18.3 7.2 49% 75.79 1011.7
11 14:56 S 19 16.09 Fair CLR 20 7.2 44% 75.84 1012.2
11 13:56 S 15 16.09 Fair CLR 20 6.7 42% 75.9 1013.1
11 12:56 SE 7 16.09 Fair CLR 19.4 5 20 6.1 39% 75.97 1014.2
11 11:56 Vrbl 7 16.09 Fair CLR 18.9 3.9 37% 76.07 1015.4
11 10:56 SE 9 16.09 Overcast OVC075 17.8 4.4 41% 76.17 1016.7
11 09:56 Calm 16.09 Overcast OVC070 14.4 8.3 67% 76.23 1017.6
11 08:56 Calm 16.09 Overcast OVC070 10 7.8 86% 76.25 1018.0
11 07:56 SE 6 16.09 Overcast OVC065 9.4 7.2 86% 76.23 1017.8
11 06:56 Calm 16.09 Mostly Cloudy BKN060 6.1 5.6 6.7 5 97% 76.23 1017.8
11 05:56 Calm 16.09 Fair CLR 5.6 5 96% 76.2 1017.6
11 04:56 Calm 16.09 A Few Clouds FEW060 5.6 5.6 100% 76.23 1017.6
11 03:56 Calm 16.09 A Few Clouds FEW060 5.6 5 96% 76.23 1017.6
11 02:56 Calm 16.09 A Few Clouds FEW060 6.7 5 89% 76.23 1017.6
11 01:56 Calm 16.09 A Few Clouds FEW060 6.7 5 89% 76.25 1017.8
11 00:56 Calm 16.09 Fair CLR 6.1 5 13.9 6.1 93% 76.25 1017.9
10 23:56 Calm 16.09 Fair CLR 7.2 5 86% 76.25 1017.9
10 22:56 Calm 16.09 Fair CLR 8.9 4.4 74% 76.25 1017.9
10 21:56 Calm 16.09 Fair CLR 9.4 5 74% 76.25 1018.0
10 20:56 Calm 16.09 Fair CLR 10.6 5 69% 76.23 1017.6
10 19:56 Calm 16.09 Fair CLR 12.8 4.4 57% 76.2 1017.2
10 18:56 W 7 16.09 Fair CLR 13.9 3.9 20.6 13.3 51% 76.15 1016.8
10 17:56 SW 6 16.09 Fair CLR 16.7 2.8 40% 76.12 1016.4
10 16:56 W 7 16.09 Fair CLR 17.8 2.8 37% 76.07 1015.5
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)