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.
30 18:56 Vrbl 7 16.09 Fair CLR 16.7 2.8 40% 76.84 1025.5
30 17:56 NW 9 16.09 Fair CLR 18.3 3.3 37% 76.71 1024.0
30 16:56 NW 20 G 30 16.09 Fair CLR 20.6 4.4 35% 76.66 1023.1
30 15:56 NW 13 G 28 16.09 Fair CLR 22.2 3.9 30% 76.61 1022.4
30 14:56 W 22 G 31 16.09 Fair CLR 22.2 5.6 34% 76.53 1021.7
30 13:56 NW 19 G 35 16.09 Fair CLR 22.8 6.1 22.8 9.4 34% 76.58 1022.0
30 12:56 NW 19 G 31 16.09 Fair CLR 22.8 8.9 41% 76.61 1022.3
30 11:56 NW 22 G 35 16.09 Fair CLR 21.7 10 47% 76.61 1022.5
30 10:56 NW 19 G 35 16.09 Fair CLR 21.1 11.1 53% 76.61 1022.3
30 09:56 W 13 16.09 Fair CLR 18.3 11.1 63% 76.58 1022.0
30 08:56 Calm 14.48 Fair CLR 12.2 12.2 100% 76.56 1022.0
30 07:56 Calm 4.02 Fog/Mist CLR 9.4 9.4 11.7 8.9 100% 76.53 1021.7
30 06:56 Calm 8.05 Fog/Mist CLR 10 10 100% 76.5 1021.1
30 05:56 Calm 9.66 Fog/Mist CLR 10.6 10.6 100% 76.5 1021.2
30 04:56 Calm 6.44 Fog/Mist CLR 9.4 9.4 100% 76.48 1020.9
30 03:56 Calm 9.66 Fog/Mist CLR 10 10 100% 76.48 1021.1
30 02:56 Calm 14.48 Fair CLR 10.6 10.6 100% 76.5 1021.4
30 01:56 Calm 12.87 Fair CLR 11.1 11.1 17.2 11.1 100% 76.53 1021.7
30 00:56 Calm 16.09 Fair CLR 12.2 12.2 100% 76.56 1021.9
29 23:56 Calm 16.09 Fair CLR 13.3 13.3 100% 76.58 1022.3
29 22:56 Calm 16.09 Fair CLR 15.6 12.2 80% 76.58 1022.1
29 21:56 S 7 16.09 Fair CLR 16.7 12.2 75% 76.58 1022.3
29 20:56 S 6 16.09 Fair CLR 16.7 12.2 75% 76.61 1022.4
29 19:56 S 7 16.09 Fair CLR 17.2 12.8 22.8 16.7 76% 76.61 1022.7
29 18:56 S 9 16.09 Fair CLR 18.3 11.7 66% 76.58 1022.2
29 17:56 S 7 16.09 Fair CLR 20.6 11.7 57% 76.61 1022.6
29 16:56 SW 7 16.09 Fair CLR 22.2 12.2 53% 76.63 1022.8
29 15:56 Calm 16.09 Fair CLR 22.2 11.7 52% 76.66 1023.2
29 14:56 W 7 16.09 Fair CLR 21.7 12.8 57% 76.71 1023.9
29 13:56 S 11 16.09 Fair CLR 21.7 12.8 22.2 9.4 57% 76.76 1024.7
29 12:56 Vrbl 9 16.09 Fair CLR 20.6 12.8 61% 76.84 1025.6
29 11:56 Vrbl 11 16.09 Overcast OVC022 19.4 13.3 68% 76.91 1026.7
29 10:56 W 9 16.09 Partly Cloudy SCT018 18.3 13.3 73% 76.96 1027.5
29 09:56 SW 7 16.09 Fair CLR 16.1 13.3 84% 76.99 1028.0
29 08:56 SE 6 16.09 Fair CLR 13.3 13.3 100% 76.99 1028.0
29 07:56 Calm 8.05 Fog/Mist SCT029 10 10 13.3 8.9 100% 76.99 1027.7
29 06:56 Calm 16.09 Mostly Cloudy BKN029 11.1 11.1 100% 76.96 1027.5
29 05:56 Calm 16.09 Overcast OVC027 12.2 12.2 100% 76.96 1027.5
29 04:56 Calm 16.09 Overcast OVC027 12.2 12.2 100% 76.96 1027.3
29 03:56 SE 6 16.09 Overcast OVC027 12.2 12.2 100% 76.99 1027.7
29 02:56 SE 6 16.09 Overcast OVC027 11.1 11.1 100% 77.01 1028.1
29 01:56 Vrbl 6 16.09 Fair CLR 8.9 8.9 12.8 8.3 100% 77.04 1028.5
29 00:56 Calm 16.09 Fair CLR 8.9 8.9 100% 77.06 1028.7
28 23:56 Calm 16.09 Fair CLR 8.9 8.3 96% 77.09 1029.0
28 22:56 Calm 16.09 Fair CLR 8.9 7.8 93% 77.11 1029.4
28 21:56 Calm 16.09 Fair CLR 9.4 8.3 93% 77.11 1029.7
28 20:56 Calm 16.09 Fair CLR 11.1 6.7 75% 77.11 1029.8
28 19:56 Calm 16.09 Fair CLR 12.8 6.7 18.3 12.8 67% 77.14 1030.0
28 18:56 Calm 16.09 Fair CLR 13.9 7.2 64% 77.11 1029.7
28 17:56 Calm 16.09 Fair CLR 15 7.2 60% 77.11 1029.8
28 16:56 Calm 16.09 Fair CLR 16.7 9.4 62% 77.14 1029.7
28 15:56 SE 11 16.09 Fair CLR 17.8 9.4 58% 77.14 1029.8
28 14:56 S 9 16.09 Fair CLR 18.3 8.9 54% 77.19 1030.4
28 13:56 Calm 16.09 Fair CLR 17.8 9.4 18.9 7.2 58% 77.22 1030.7
28 12:56 S 11 16.09 Fair CLR 18.3 8.9 54% 77.27 1031.3
28 11:56 Vrbl 7 16.09 Fair CLR 17.2 10 63% 77.32 1032.0
28 10:56 SE 7 16.09 Fair CLR 16.1 10.6 70% 77.34 1032.6
28 09:56 Calm 16.09 Fair CLR 13.3 11.7 90% 77.37 1033.0
28 08:56 Calm 11.27 Fair CLR 10.6 10.6 100% 77.34 1032.7
28 07:56 Calm 4.83 Fog/Mist CLR 7.2 7.2 9.4 6.7 100% 77.32 1032.3
28 06:56 Calm 4.83 Fog/Mist CLR 7.2 7.2 100% 77.27 1031.7
28 05:56 Calm 6.44 Fog/Mist CLR 7.2 7.2 100% 77.27 1031.4
28 04:56 Calm 4.83 Fog/Mist CLR 8.3 8.3 100% 77.19 1030.5
28 03:56 Calm 4.83 Fog/Mist CLR 8.9 8.9 100% 77.19 1030.5
28 02:56 Calm 9.66 Fog/Mist CLR 9.4 9.4 100% 77.22 1031.0
28 01:56 Calm 9.66 Fog/Mist CLR 9.4 9.4 14.4 9.4 100% 77.22 1030.7
28 00:56 Calm 16.09 Fair CLR 10.6 10.6 100% 77.22 1030.6
27 23:56 Calm 16.09 Fair CLR 11.1 11.1 100% 77.19 1030.4
27 22:56 Calm 16.09 Fair CLR 11.1 10.6 97% 77.17 1030.1
27 21:56 Calm 16.09 Fair CLR 11.7 10.6 93% 77.11 1029.6
27 20:56 Calm 16.09 Fair CLR 12.2 11.1 93% 77.09 1029.4
27 19:56 Calm 16.09 Fair CLR 14.4 10.6 22.8 14.4 78% 77.09 1029.2
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)