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 04:56 Calm 16.09 Fair CLR 0 -1.1 92% 77.6 1036.4
09 03:56 Calm 16.09 Fair CLR 1.1 -0.6 89% 77.6 1036.3
09 02:56 SE 6 16.09 Fair CLR 1.7 0 89% 77.6 1036.4
09 01:56 SE 6 16.09 Fair CLR 2.8 -1.1 7.8 2.8 76% 77.62 1036.6
09 00:56 SE 9 16.09 Fair CLR 3.9 -1.7 67% 2 77.65 1036.9
08 23:56 SE 13 16.09 Fair CLR 5 -2.8 57% 2 77.62 1036.7
08 22:56 SE 11 16.09 Fair CLR 4.4 -3.9 55% 2 77.62 1036.7
08 21:56 SE 9 16.09 Fair CLR 5 -5 49% 3 77.62 1036.9
08 20:56 SE 11 16.09 Fair CLR 6.7 -7.8 35% 5 77.6 1036.4
08 19:56 SE 13 16.09 Fair CLR 7.8 -9.4 12.8 7.8 29% 6 77.55 1035.7
08 18:56 SE 19 16.09 Fair CLR 10 -10 24% 8 77.55 1035.6
08 17:56 SE 7 16.09 Fair CLR 11.7 -8.9 23% 77.52 1035.4
08 16:56 Vrbl 7 16.09 Fair CLR 12.2 -10 20% 77.55 1035.6
08 15:56 Vrbl 6 16.09 Fair CLR 11.7 -9.4 22% 77.57 1036.1
08 14:56 Vrbl 9 16.09 Fair CLR 11.7 -6.7 27% 77.62 1036.5
08 13:56 Vrbl 11 16.09 Fair CLR 10 -7.8 10.6 -0.6 28% 9 77.65 1037.1
08 12:56 Calm 16.09 Fair CLR 9.4 -10.6 23% 77.7 1037.8
08 11:56 Calm 16.09 Fair CLR 8.3 -11.1 24% 77.77 1038.6
08 10:56 Vrbl 7 16.09 Fair CLR 6.7 -10.6 28% 6 77.77 1038.8
08 09:56 NE 9 16.09 Fair CLR 4.4 -10 35% 2 77.77 1038.7
08 08:56 Vrbl 6 16.09 Fair CLR 2.2 -8.9 44% 77.75 1038.3
08 07:56 Calm 16.09 Fair CLR -0.6 -7.8 1.7 -2.2 59% 77.72 1038.0
08 06:56 Calm 16.09 Fair CLR -1.7 -7.8 63% 77.65 1037.0
08 05:56 Calm 16.09 Fair CLR -1.1 -8.3 58% 77.57 1036.1
08 04:56 NE 6 16.09 Fair CLR -0.6 -7.8 59% 77.5 1035.1
08 03:56 Vrbl 6 16.09 Fair CLR 0 -7.8 56% 77.47 1034.5
08 02:56 NE 6 16.09 Fair CLR 1.1 -8.3 50% 77.44 1034.4
08 01:56 N 6 16.09 Fair CLR 1.7 -8.3 6.7 1.7 48% 77.42 1033.9
08 00:56 N 7 16.09 Fair CLR 2.2 -8.3 46% 0 77.42 1034.0
07 23:56 Calm 16.09 Fair CLR 2.8 -8.3 44% 77.42 1034.0
07 22:56 Calm 16.09 Fair CLR 2.8 -7.8 46% 77.37 1033.3
07 21:56 Calm 16.09 Fair CLR 3.3 -6.7 48% 77.34 1032.7
07 20:56 Calm 16.09 Fair CLR 5.6 -8.9 35% 77.29 1032.0
07 19:56 N 6 16.09 Fair CLR 6.7 -9.4 12.2 6.7 31% 77.22 1031.0
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
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)