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 S 7 16.09 Fair CLR 18.3 12.2 68% 75.97 1014.1
07 17:56 S 13 16.09 Fair CLR 20.6 12.2 59% 75.97 1014.0
07 16:56 S 19 16.09 Fair CLR 21.7 12.2 55% 75.97 1014.1
07 15:56 S 9 16.09 Fair CLR 22.2 12.2 53% 76.02 1014.5
07 13:56 S 19 16.09 Fair CLR 21.7 11.1 21.7 10 51% 76.12 1016.1
07 12:56 S 11 16.09 Fair CLR 20.6 10 51% 76.23 1017.6
07 11:56 Vrbl 11 16.09 Fair CLR 19.4 9.4 53% 76.28 1018.3
07 10:56 S 17 16.09 Fair CLR 17.2 9.4 60% 76.35 1019.4
07 08:56 S 11 16.09 Fair CLR 12.2 9.4 83% 76.4 1020.1
07 07:56 S 7 16.09 Fair CLR 10 9.4 10 5.6 96% 9 76.4 1020.1
07 06:56 Calm 16.09 Fair CLR 6.1 6.1 100% 76.43 1020.2
07 05:56 Calm 16.09 Fair CLR 6.1 6.1 100% 76.4 1020.1
07 04:56 Calm 16.09 Fair CLR 5.6 5.6 100% 76.4 1020.2
07 03:56 Calm 16.09 Fair CLR 6.1 6.1 100% 76.43 1020.2
07 02:56 Calm 16.09 Fair CLR 6.7 6.7 100% 76.45 1020.6
07 01:56 Calm 16.09 Fair CLR 6.1 6.1 9.4 6.1 100% 76.48 1020.9
07 00:56 Calm 16.09 Fair CLR 6.7 6.7 100% 76.5 1021.3
06 23:56 Calm 16.09 Fair CLR 6.7 6.7 100% 76.5 1021.6
06 21:56 Calm 16.09 Fair CLR 7.8 7.8 100% 76.5 1021.6
06 20:56 Calm 16.09 Fair CLR 8.3 8.3 100% 76.5 1021.6
06 19:56 Calm 16.09 Fair CLR 9.4 7.8 17.8 9.4 90% 76.5 1021.4
06 18:56 Calm 16.09 Fair CLR 12.2 5 62% 76.5 1021.3
06 17:56 Calm 16.09 Fair CLR 16.7 5 46% 76.5 1021.4
06 16:56 W 9 16.09 Fair CLR 16.7 4.4 44% 76.5 1021.5
06 15:56 W 6 16.09 Fair CLR 17.2 3.9 41% 76.56 1022.0
06 14:56 W 7 16.09 Fair CLR 17.8 3.3 38% 76.61 1022.6
06 13:56 Vrbl 6 16.09 Fair CLR 16.7 2.2 17.2 5.6 38% 76.68 1023.6
06 12:56 Vrbl 6 16.09 Fair CLR 16.7 0.6 34% 76.76 1024.6
06 11:56 Calm 16.09 Fair CLR 15 2.2 42% 76.84 1025.6
06 09:56 Calm 16.09 Fair CLR 12.8 4.4 57% 76.86 1026.2
06 08:56 W 6 16.09 Fair CLR 9.4 6.1 80% 76.84 1025.9
06 07:56 Calm 16.09 Fair CLR 5.6 5.6 8.9 4.4 100% 76.81 1025.6
06 06:56 Calm 16.09 Fair CLR 4.4 4.4 100% 76.76 1024.9
06 05:56 Calm 16.09 Fair CLR 5 5 100% 76.71 1024.1
06 04:56 Calm 16.09 Fair CLR 5.6 5.6 100% 76.68 1023.7
06 03:56 NW 6 16.09 Fair CLR 6.1 6.1 100% 76.68 1023.6
06 02:56 NW 6 16.09 Fair CLR 7.8 5.6 86% 76.68 1023.6
06 01:56 Calm 16.09 Fair CLR 8.3 4.4 15.6 7.2 77% 76.66 1023.4
06 00:56 Calm 16.09 Fair CLR 9.4 5 74% 76.66 1023.2
05 23:56 Calm 16.09 Fair CLR 11.1 5.6 69% 76.66 1023.2
05 22:56 Calm 16.09 Fair CLR 11.1 7.2 77% 76.63 1022.8
05 21:56 Calm 16.09 Fair CLR 12.8 7.2 69% 76.58 1022.2
05 20:56 NW 7 16.09 Fair CLR 13.3 7.8 70% 76.53 1021.5
05 19:56 Vrbl 7 16.09 Fair CLR 15.6 7.2 21.7 15 58% 76.48 1020.8
05 18:56 Calm 16.09 Fair CLR 17.2 6.7 50% 76.43 1020.2
05 17:56 NW 13 G 28 16.09 Fair CLR 20 6.7 42% 76.35 1019.2
05 16:56 NW 15 16.09 Fair CLR 21.1 7.8 42% 76.33 1018.6
05 15:56 Vrbl 11 16.09 Fair CLR 21.1 8.3 44% 76.3 1018.5
05 14:56 NW 20 G 35 16.09 A Few Clouds FEW060 21.7 8.9 44% 76.33 1018.6
05 13:56 W 22 G 30 16.09 A Few Clouds FEW049 21.7 10.6 21.7 13.3 49% 76.35 1019.1 0.03
05 12:56 NW 19 G 33 16.09 Fair CLR 21.1 10.6 51% 76.4 1019.8
05 11:56 NW 20 G 33 16.09 Partly Cloudy SCT032 20 12.8 63% 76.43 1020.1
05 10:56 NW 11 16.09 Partly Cloudy SCT021 18.9 13.9 73% 76.45 1020.4 0.03
05 09:56 W 17 16.09 Fair CLR 16.7 16.7 100% 76.45 1020.6
05 08:56 W 9 0.80 Fog BKN002 OVC019 14.4 14.4 100% 76.4 1019.9 0.03
05 07:56 W 7 6.44 Fog/Mist CLR 13.3 13.3 15.6 13.3 100% 76.38 1019.6
05 06:56 W 11 14.48 Partly Cloudy SCT006 14 0 0% 76.35 1019.2
05 05:56 W 6 16.09 Overcast OVC006 14.4 14.4 100% 76.35 1019.2
05 04:56 W 9 8.05 Fog/Mist OVC003 15 15 100% 76.35 1019.1
05 03:56 Vrbl 7 9.66 Fog/Mist OVC003 15 15 100% 76.35 1019.4
05 02:56 W 11 1.21 Fog/Mist BKN003 OVC018 15 15 100% 76.4 1020.0
05 01:56 Calm 0.40 Fog OVC003 15 15 16.1 15 100% 76.43 1020.1
05 00:56 Calm 8.05 Fog/Mist BKN003 OVC029 15.6 15.6 100% 76.43 1020.2
04 23:56 Calm 14.48 Overcast OVC004 16.1 16.1 100% 76.5 1021.1
04 22:56 Calm 16.09 Overcast BKN006 OVC010 16.1 16.1 100% 76.5 1021.3
04 21:56 Calm 11.27 Overcast BKN006 OVC020 16 0 0% 76.53 1021.4
04 20:56 Calm 16.09 Overcast OVC006 16 0 0% 76.53 1021.6
04 19:56 Calm 16.09 Overcast SCT004 OVC020 16 0 17.8 16.1 0% 76.48 1020.9 0.03
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)