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.
01 07:56 Calm 16.09 Fair CLR 17.2 8.9 17.2 10 58% 76.07 1015.3
01 06:56 Calm 16.09 Fair CLR 11.7 11.7 100% 76.02 1014.8
01 05:56 Calm 16.09 Fair CLR 10 0 0% 76 1014.3
01 04:56 Calm 16.09 Fair CLR 11 0 0% 75.97 1014.1
01 03:56 Calm 16.09 Fair CLR 11.7 11.7 100% 75.97 1014.0
01 02:56 Calm 16.09 Partly Cloudy SCT080 12.8 10.6 87% 76.02 1014.6
01 01:56 Calm 16.09 Mostly Cloudy BKN085 13.9 8.3 21.7 13.9 69% 76.05 1015.0
01 00:56 SE 9 16.09 Fair CLR 16.1 8.3 60% 76.1 1015.4
31 23:56 Vrbl 6 16.09 Fair CLR 15 7.2 60% 76.1 1015.8
31 22:56 Calm 16.09 Fair CLR 15 7.2 60% 76.12 1016.2
31 21:56 Calm 16.09 Fair CLR 15 8.3 64% 76.12 1016.3
31 20:56 Calm 16.09 Fair CLR 16.7 6.1 50% 76.1 1015.9
31 19:56 Calm 16.09 Fair CLR 21.7 5 25 21.7 34% 76.07 1015.5
31 18:56 Vrbl 6 16.09 Fair CLR 23.3 5.6 32% 76.1 1015.6
31 17:56 Vrbl 11 16.09 Fair CLR 25 3.9 26% 25 76.12 1016.0
31 16:56 W 7 16.09 Fair CLR 25 3.9 26% 25 76.17 1016.7
31 15:56 Vrbl 11 16.09 Fair CLR 23.9 4.4 28% 25 76.25 1017.7
31 14:56 NW 6 16.09 Fair CLR 22.8 5 32% 76.33 1018.8
31 13:56 W 13 16.09 Fair CLR 22.8 5 23.9 13.9 32% 76.38 1019.5
31 12:56 W 7 16.09 Fair CLR 22.2 4.4 31% 76.48 1020.7
31 11:56 Calm 16.09 Fair CLR 21.1 3.3 31% 76.53 1021.4
31 10:56 Calm 16.09 Fair CLR 19.4 3.3 35% 76.56 1021.9
31 09:56 NW 11 16.09 Fair CLR 18.3 6.7 47% 76.58 1022.4
31 08:56 Calm 16.09 Fair CLR 15.6 6.1 53% 76.61 1022.6
31 07:56 Calm 16.09 Fair CLR 13.9 6.7 13.9 7.2 62% 76.58 1022.4
31 06:56 Calm 16.09 Fair CLR 9.4 7.8 90% 76.58 1022.3
31 05:56 Calm 16.09 Fair CLR 7 0 0% 76.56 1022.0
31 04:56 Calm 16.09 Fair CLR 8.3 7.8 97% 76.53 1021.6
31 03:56 Calm 16.09 Fair CLR 8.3 8.3 100% 76.56 1021.8
31 02:56 Calm 16.09 Fair CLR 8.9 8.9 100% 76.56 1021.9
31 01:56 Calm 16.09 Fair CLR 10 7.2 18.3 10 83% 76.58 1022.1
31 00:56 Calm 16.09 Fair CLR 10.6 8.9 89% 76.56 1022.1
30 23:56 Calm 16.09 Fair CLR 10.6 10 96% 76.56 1022.0
30 22:56 Calm 16.09 Fair CLR 12.2 7.8 75% 76.56 1021.9
30 21:56 Calm 16.09 Fair CLR 14.4 6.1 58% 76.53 1021.4
30 20:56 Vrbl 6 16.09 Fair CLR 15.6 6.7 56% 76.45 1020.5
30 19:56 Calm 16.09 Fair CLR 17.8 6.7 22.2 17.8 48% 76.4 1019.6
30 18:56 Vrbl 9 16.09 Fair CLR 19.4 6.7 44% 76.35 1018.8
30 17:56 Vrbl 9 16.09 Fair CLR 21.1 7.2 41% 76.3 1018.2
30 16:56 N 13 16.09 Fair CLR 21.7 7.2 39% 76.25 1017.5
30 15:56 Vrbl 7 16.09 Fair CLR 21.7 7.2 39% 76.23 1017.2
30 14:56 NW 13 16.09 Fair CLR 21.1 7.2 41% 76.23 1017.3
30 13:56 Vrbl 9 16.09 Fair CLR 20.6 7.2 20.6 16.1 42% 76.2 1017.1
30 12:56 Vrbl 6 16.09 Fair CLR 20.6 6.7 41% 76.23 1017.1
30 11:56 Vrbl 7 16.09 Fair CLR 19.4 6.1 42% 76.17 1016.8
30 10:56 Vrbl 6 16.09 Fair CLR 18.9 6.1 43% 76.12 1016.1
30 09:56 Vrbl 7 G 28 16.09 Fair CLR 17.8 5 43% 76.1 1015.6
30 08:56 Vrbl 6 16.09 Fair CLR 17.8 6.7 48% 76.05 1014.7
30 07:56 Vrbl 6 16.09 Fair CLR 16.1 6.1 18.3 15.6 52% 75.97 1013.8
30 06:56 NW 11 16.09 Fair CLR 17.2 9.4 60% 75.87 1012.5
30 05:56 NW 11 16.09 Fair CLR 17.2 8.9 58% 75.79 1011.6
30 04:56 W 17 16.09 Fair CLR 17.2 10 63% 75.74 1010.8
30 03:56 Calm 16.09 Fair CLR 17.8 8.9 56% 75.72 1010.6
30 02:56 W 7 16.09 Fair CLR 18.3 8.9 54% 75.74 1010.9
30 01:56 W 6 16.09 Fair CLR 16.1 9.4 24.4 15.6 65% 75.77 1011.1
30 00:56 Calm 16.09 Fair CLR 16.1 12.8 81% 75.82 1012.0
29 23:56 Calm 16.09 Fair CLR 16.7 13.3 80% 75.87 1012.4
29 22:56 Calm 16.09 Fair CLR 17.8 12.2 70% 75.84 1012.2
29 21:56 W 6 16.09 Fair CLR 20.6 11.7 57% 75.84 1012.0
29 20:56 W 7 16.09 Fair CLR 22.2 11.1 50% 75.82 1011.6
29 19:56 SW 9 16.09 Fair CLR 23.9 11.1 26.1 23.3 45% 25 75.79 1011.5
29 18:56 Vrbl 9 16.09 Fair CLR 25.6 9.4 36% 26 75.82 1011.9
29 17:56 W 17 16.09 Fair CLR 25.6 9.4 36% 26 75.9 1013.0
29 16:56 W 17 G 30 16.09 Fair CLR 25 8.9 36% 26 75.97 1014.1
29 15:56 SW 19 G 26 16.09 Fair CLR 25.6 9.4 36% 26 76.05 1015.1
29 14:56 W 15 G 28 16.09 Fair CLR 24.4 9.4 39% 25 76.1 1015.7
29 13:56 Vrbl 7 16.09 Fair CLR 23.9 9.4 25 15.6 40% 25 76.17 1016.6
29 12:56 NW 11 16.09 Fair CLR 22.8 8.9 41% 76.28 1018.0
29 11:56 Vrbl 11 16.09 Fair CLR 22.2 8.9 43% 76.38 1019.2
29 10:56 Calm 16.09 Fair CLR 21.1 8.9 46% 76.43 1019.9
29 09:56 Calm 16.09 Fair CLR 20.6 9.4 49% 76.45 1020.3
29 08:56 Vrbl 7 16.09 Fair CLR 18.3 10 59% 76.48 1020.6
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)