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.
11 11:56 NW 19 G 31 16.09 Fair CLR 17.2 3.3 40% 77.04 1028.2
11 10:56 N 17 G 30 16.09 Fair CLR 16.7 4.4 44% 77.01 1027.9
11 09:56 NW 15 16.09 A Few Clouds FEW036 16.7 7.2 54% 76.96 1027.2
11 08:56 NW 13 G 30 16.09 A Few Clouds FEW032 15 7.8 62% 76.91 1026.6
11 07:56 Vrbl 9 16.09 A Few Clouds FEW050 15.6 11.1 17.2 13.3 75% 76.84 1025.6
11 06:56 NW 11 16.09 Mostly Cloudy SCT036 BKN042 13.9 13.9 100% 76.76 1024.3
11 05:56 W 7 16.09 Fair CLR 14.4 12.8 90% 76.68 1023.6
11 04:56 NW 19 16.09 A Few Clouds FEW100 16.1 12.2 78% 76.61 1022.3
11 03:56 Calm 16.09 Overcast OVC090 17.2 11.1 68% 76.61 1022.1
11 02:56 Calm 16.09 Partly Cloudy SCT100 16.1 8.9 63% 76.61 1022.3
11 01:56 Calm 16.09 Overcast OVC110 16.7 7.2 21.1 16.1 54% 76.61 1022.2
11 00:56 NW 6 16.09 Overcast OVC100 16.1 7.2 56% 76.61 1022.5
10 23:56 Vrbl 6 16.09 Mostly Cloudy BKN120 17.8 6.1 46% 76.56 1021.8
10 22:56 S 7 16.09 Fair CLR 17.8 6.7 48% 76.58 1022.2
10 21:56 SE 15 16.09 Fair CLR 18.3 6.1 45% 76.61 1022.8
10 20:56 SE 13 16.09 Fair CLR 18.9 6.1 43% 76.58 1022.2
10 19:56 S 19 16.09 Fair CLR 21.1 5 25 21.1 35% 76.56 1022.0
10 18:56 SE 19 G 31 16.09 Fair CLR 22.8 5 32% 76.56 1021.9
10 17:56 SE 15 16.09 Fair CLR 24.4 6.1 31% 25 76.58 1022.1
10 16:56 SE 13 16.09 Fair CLR 24.4 6.7 32% 25 76.61 1022.3
10 15:56 SE 20 16.09 Fair CLR 23.9 6.7 33% 25 76.66 1023.1
10 14:56 SE 19 16.09 Fair CLR 23.3 6.1 33% 76.73 1024.1
10 13:56 S 13 16.09 Fair CLR 22.8 6.1 22.8 6.7 34% 76.84 1025.6
10 12:56 S 11 16.09 Fair CLR 21.1 6.1 38% 76.94 1027.0
10 11:56 SE 11 16.09 Fair CLR 18.9 6.1 43% 77.04 1028.2
10 10:56 Vrbl 7 16.09 Fair CLR 16.1 5.6 50% 77.09 1029.2
10 09:56 Calm 16.09 Fair CLR 12.2 6.7 69% 77.11 1029.7
10 08:56 S 9 16.09 A Few Clouds FEW010 9.4 8.3 93% 8 77.14 1030.0
10 07:56 S 6 11.27 Partly Cloudy SCT004 7 0 7.2 3.9 0% 77.19 1030.7
10 06:56 Calm 11.27 A Few Clouds FEW006 4 0 0% 77.17 1030.4
10 05:56 SE 7 16.09 Fair CLR 5 0 0% 4 77.11 1029.7
10 04:56 SE 9 16.09 Overcast OVC008 5.6 5.6 100% 4 77.11 1029.7
10 03:56 Calm 16.09 Fair CLR 5.6 5.6 100% 77.14 1030.0
10 02:56 Calm 16.09 Fair CLR 6.1 6.1 100% 77.17 1030.3
10 01:56 SE 9 16.09 Fair CLR 7.2 6.1 12.8 6.7 93% 6 77.19 1030.7
10 00:56 SE 6 16.09 Fair CLR 7.8 3.9 77% 77.22 1031.2
09 23:56 Calm 16.09 Fair CLR 7.8 1.7 66% 77.24 1031.6
09 22:56 Calm 16.09 Fair CLR 8.3 1.1 61% 77.27 1031.7
09 21:56 SE 9 16.09 Fair CLR 10 1.1 54% 9 77.27 1031.8
09 20:56 SE 11 16.09 Fair CLR 11.1 1.7 53% 77.24 1031.6
09 19:56 SE 13 16.09 Fair CLR 12.8 2.2 17.8 12.8 49% 77.22 1031.3
09 18:56 SE 17 16.09 Fair CLR 15.6 1.7 39% 77.24 1031.4
09 17:56 S 13 16.09 Fair CLR 17.2 -1.7 28% 77.24 1031.5
09 16:56 SE 11 16.09 Fair CLR 17.2 -2.2 27% 77.27 1031.7
09 15:56 S 13 16.09 Fair CLR 16.7 -2.8 26% 77.32 1032.4
09 14:56 SE 13 G 26 16.09 Fair CLR 15.6 -1.1 32% 77.39 1033.3
09 13:56 Vrbl 6 16.09 Fair CLR 15 -1.7 15 1.1 32% 77.44 1034.1
09 12:56 Vrbl 11 16.09 Fair CLR 12.8 -1.7 37% 77.52 1035.2
09 11:56 S 9 16.09 Fair CLR 12.2 -0.6 42% 77.6 1036.2
09 10:56 Calm 16.09 Fair CLR 9.4 0 52% 77.65 1036.8
09 09:56 Vrbl 7 16.09 A Few Clouds FEW017 7.2 1.7 68% 6 77.67 1037.3
09 08:56 SE 6 16.09 Partly Cloudy SCT014 4.4 2.2 86% 77.67 1037.5
09 07:56 SE 7 16.09 Fair CLR 1.1 0.6 2.8 -1.7 97% -1 77.67 1037.4
09 06:56 Calm 16.09 Fair CLR -1.1 -2.2 92% 77.62 1037.0
09 05:56 Calm 16.09 A Few Clouds FEW013 -1.7 -3.9 85% 77.62 1036.8
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
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)