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.
07 18:56 Calm 16.09 Fair CLR 9.4 -8.9 27% 77.17 1030.3
07 17:56 Vrbl 11 16.09 Fair CLR 11.1 -8.3 25% 77.09 1029.4
07 16:56 NW 15 G 28 16.09 Fair CLR 11.7 -8.3 24% 77.04 1028.5
07 15:56 W 24 G 33 16.09 Fair CLR 11.1 -8.9 24% 77.01 1028.3
07 14:56 NW 30 G 39 16.09 Fair CLR 11.1 -11.1 20% 77.01 1028.3
07 13:56 NW 20 G 35 16.09 Fair CLR 11.1 -9.4 12.8 7.2 23% 76.99 1028.2
07 12:56 N 13 G 30 16.09 Fair CLR 11.7 -8.9 23% 76.99 1027.9
07 11:56 Vrbl 11 G 39 16.09 Fair CLR 10.6 -5 33% 76.96 1027.8
07 10:56 W 24 G 41 16.09 Mostly Cloudy BKN060 10 -3.3 39% 7 76.94 1027.4
07 09:56 NW 26 G 44 16.09 Fair CLR 9.4 -3.9 39% 6 76.89 1026.6
07 08:56 NW 24 G 43 16.09 Fair CLR 8.3 -4.4 41% 5 76.84 1026.0
07 07:56 NW 17 16.09 Fair CLR 7.2 -3.9 8.3 6.1 46% 5 76.81 1025.6
07 06:56 NW 11 16.09 Fair CLR 6.7 -2.2 53% 5 76.71 1024.3
07 05:56 NW 15 16.09 Fair CLR 7.2 -0.6 58% 5 76.61 1023.0
07 04:56 Calm 16.09 A Few Clouds FEW075 6.1 1.1 71% 76.56 1022.2
07 03:56 NW 6 16.09 Fair CLR 6.7 1.1 68% 76.5 1021.6
07 02:56 Calm 16.09 A Few Clouds FEW090 7.2 1.7 68% 76.45 1020.9
07 01:56 Calm 16.09 Overcast OVC100 8.3 1.7 12.2 8.3 63% 76.45 1020.7
07 00:56 Calm 16.09 Mostly Cloudy FEW080 BKN100 9.4 0.6 55% 76.45 1020.8
06 23:56 Calm 16.09 Overcast BKN085 OVC110 8.9 3.3 68% 76.45 1020.9
06 22:56 Calm 16.09 Mostly Cloudy BKN100 10 1.1 54% 76.45 1020.7
06 21:56 Calm 16.09 Overcast OVC100 11.7 1.1 48% 76.48 1021.1
06 20:56 Calm 16.09 Overcast OVC100 12.2 -0.6 42% 76.43 1020.6
06 19:56 NW 6 16.09 Mostly Cloudy BKN100 12.2 -1.1 15.6 12.2 40% 76.38 1019.6
06 18:56 Vrbl 11 16.09 Partly Cloudy SCT100 13.9 -1.1 36% 76.35 1019.6
06 17:56 W 17 G 28 16.09 Mostly Cloudy BKN085 14.4 -0.6 36% 76.33 1019.1
06 16:56 W 15 G 28 16.09 Mostly Cloudy SCT075 BKN090 15.6 -0.6 33% 76.33 1018.9
06 15:56 W 22 G 30 16.09 Overcast BKN080 OVC090 14.4 -0.6 36% 76.33 1019.2
06 14:56 Vrbl 6 16.09 Mostly Cloudy BKN070 BKN080 14.4 -1.1 35% 76.38 1019.7
06 13:56 W 17 16.09 Mostly Cloudy BKN070 13.9 -1.1 13.9 6.7 36% 76.48 1021.0
06 12:56 W 19 16.09 Partly Cloudy SCT060 12.2 -1.7 38% 76.53 1022.0
06 11:56 W 17 16.09 Fair CLR 12.2 -1.1 40% 76.58 1022.4
06 10:56 W 22 16.09 A Few Clouds FEW050 10.6 -1.1 45% 76.61 1022.8
06 09:56 NW 15 G 26 16.09 Fair CLR 9.4 -1.1 48% 7 76.58 1022.5
06 08:56 NW 17 16.09 Fair CLR 7.8 -1.7 51% 5 76.56 1022.0
06 07:56 NW 13 16.09 Fair CLR 6.7 -1.1 8.3 5.6 58% 4 76.5 1021.6
06 06:56 NW 13 16.09 Fair CLR 6.1 -1.7 58% 4 76.48 1021.1
06 05:56 NW 13 G 26 16.09 Fair CLR 6.1 -1.7 58% 4 76.4 1020.3
06 04:56 NW 15 16.09 Fair CLR 6.7 -2.2 53% 4 76.38 1019.8
06 03:56 NW 19 G 48 16.09 Fair CLR 7.8 -2.2 50% 5 76.35 1019.3
06 02:56 NW 20 G 26 16.09 Mostly Cloudy BKN050 7.8 -1.7 51% 5 76.35 1019.6
06 01:56 NW 31 G 48 16.09 Fair CLR 8.3 -2.8 12.2 8.3 46% 5 76.35 1019.6
06 00:56 NW 17 16.09 Overcast OVC050 8.9 0 54% 7 76.33 1019.1
05 23:56 NW 20 G 37 16.09 Fair CLR 9.4 -0.6 50% 7 76.3 1018.5
05 22:56 Vrbl 11 G 26 16.09 Overcast OVC050 10 0.6 52% 9 76.33 1019.0
05 21:56 NW 13 16.09 A Few Clouds FEW055 10.6 1.1 52% 76.3 1018.4
05 20:56 NW 17 G 31 16.09 Fair CLR 11.1 1.7 53% 76.2 1017.3
05 19:56 NW 24 G 33 16.09 Fair CLR 12.2 2.8 17.2 12.2 53% 76.1 1015.9 0.05
05 18:56 NW 20 G 31 16.09 Fair CLR 13.9 4.4 53% 76 1014.4
05 17:56 NW 19 G 28 16.09 Partly Cloudy SCT045 15.6 6.7 56% 75.92 1013.2
05 16:56 NW 30 G 37 16.09 Fair CLR 17.2 7.8 54% 75.84 1012.2 0.05
05 15:56 NW 19 G 28 16.09 Partly Cloudy SCT037 16.1 12.2 78% 75.84 1012.2
05 14:56 W 9 16.09 Overcast SCT033 OVC110 13.9 13.9 100% 75.87 1012.6 0.05
05 13:56 NW 15 16.09 Light Rain OVC090 13.3 13.3 22.8 13.3 100% 75.9 1013.0 0.13 0.97
05 12:56 W 17 16.09 Light Rain FEW012 BKN028 OVC080 15 0 0% 75.92 1013.2 0.13
05 11:56 W 7 14.48 Light Rain OVC075 16 0 0% 75.92 1013.3 0.33
05 10:56 NW 19 8.05 Rain BKN013 BKN028 OVC036 16 0 0% 75.92 1013.0 0.38 0.38
05 09:56 SW 26 G 35 16.09 Overcast OVC027 22.2 16.7 71% 75.87 1012.3
05 08:56 SW 24 G 37 16.09 A Few Clouds FEW026 21.7 16.7 73% 75.82 1011.8
05 07:56 SW 24 G 33 16.09 Fair CLR 21.1 16.7 22.8 20.6 76% 75.87 1012.3
05 06:56 S 17 G 28 16.09 Fair CLR 20.6 15.6 73% 75.84 1012.1
05 05:56 SW 22 G 35 16.09 Fair CLR 21.1 15 68% 75.9 1012.4
05 04:56 SW 19 G 28 16.09 Fair CLR 22.2 14.4 61% 75.9 1012.7
05 03:56 SW 22 G 35 16.09 A Few Clouds FEW120 22.2 14.4 61% 75.92 1013.0
05 02:56 S 17 G 28 16.09 Fair CLR 22.2 14.4 61% 76 1013.8
05 01:56 S 15 16.09 Fair CLR 21.7 15 26.1 21.7 66% 76.05 1014.6
05 00:56 SE 17 16.09 Fair CLR 22.2 14.4 61% 76.1 1015.3
04 23:56 S 17 16.09 Fair CLR 23.3 14.4 57% 76.15 1016.0
04 22:56 S 17 16.09 Fair CLR 24.4 14.4 54% 26 76.2 1016.6
04 21:56 S 17 G 30 16.09 Fair CLR 25 13.9 50% 26 76.23 1017.1
04 20:56 S 17 16.09 Fair CLR 25 12.8 47% 26 76.2 1016.7
04 19:56 S 13 16.09 A Few Clouds FEW070 26.1 12.8 30.6 26.1 44% 26 76.2 1016.9
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)