Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (est) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
07 22:56 E 3 8.00 Mostly Cloudy SCT032 SCT045 BKN055 53.6 0 0% 29.92 1014.6
07 21:56 Calm 10.00 Fair CLR 55.4 0 0% 29.91 1014.4
07 20:56 SE 6 10.00 Fair CLR 59 59 100% 29.88 1013.4
07 19:56 SE 7 10.00 Fair CLR 57.9 57.9 100% 29.9 1013.8
07 18:56 SE 7 10.00 Fair CLR 57.9 57.9 59 48.9 100% 29.93 1014.8
07 17:56 SE 7 10.00 Fair CLR 57.9 55 90% 29.95 1015.4
07 16:56 SE 7 10.00 Fair CLR 57 54 90% 29.96 1016.0
07 15:56 SE 8 9.00 Overcast OVC008 53.1 53.1 100% 29.98 1016.8
07 14:56 SE 9 7.00 Overcast OVC006 52 52 100% 30.03 1018.4
07 13:56 SE 6 7.00 Overcast OVC006 50 50 100% 48 30.07 1019.7
07 12:56 SE 7 5.00 Overcast with Haze OVC004 48.2 0 48.9 39.9 0% 46 30.11 1021.3
07 11:56 SE 6 5.00 Overcast with Haze OVC004 46.4 0 0% 44 30.15 1022.7
07 10:56 S 8 6.00 Overcast with Haze OVC004 44.6 0 0% 41 30.18 1023.5
07 09:56 S 8 0.75 Fog/Mist OVC002 44.6 0 0% 41 30.19 1024.1
07 08:56 SE 7 0.25 Fog OVC002 42.8 0 0% 39 30.23 1025.3
07 07:56 SE 7 0.50 Fog OVC002 39.2 0 0% 35 30.24 1025.9
07 06:56 SE 7 0.50 Fog OVC002 39.2 0 41 39 0% 35 30.25 1026.1
07 05:56 SE 7 1.00 Fog/Mist OVC002 39.2 0 0% 35 30.26 1026.4
07 04:56 SE 8 1.50 Fog/Mist OVC002 39.2 0 0% 34 30.26 1026.3
07 03:56 E 5 1.75 Fog/Mist OVC002 39.2 0 0% 36 30.29 1027.2
07 02:56 SE 7 1.75 Fog/Mist OVC002 39.2 0 0% 35 30.3 1027.6
07 01:56 SE 7 2.50 Fog/Mist OVC002 41 0 0% 37 30.31 1028.2
07 00:56 SE 6 3.00 Fog/Mist OVC004 42.8 0 44.1 42.1 0% 40 30.33 1028.9
06 23:56 SE 6 5.00 Overcast with Haze OVC004 42.8 0 0% 40 30.34 1029.1
06 22:56 SE 8 5.00 Overcast with Haze OVC004 42.8 0 0% 39 30.35 1029.4
06 21:56 E 5 2.50 Fog/Mist OVC002 42.8 0 0% 41 30.37 1030.1
06 20:56 E 5 1.50 Fog/Mist OVC002 42.8 0 0% 41 30.36 1029.9
06 19:56 E 5 1.00 Fog/Mist OVC002 42.8 0 0% 41 30.35 1029.5
06 18:56 E 5 1.75 Fog/Mist OVC004 44.6 0 48 44.1 0% 43 30.34 1029.1
06 17:56 E 7 3.00 Fog/Mist OVC004 44.6 0 0% 41 30.33 1028.8
06 16:56 E 6 5.00 Overcast with Haze OVC006 46.4 0 0% 44 30.31 1028.1
06 15:56 E 3 6.00 Fog/Mist OVC008 46.9 46.9 100% 30.31 1027.8
06 14:56 Vrbl 3 7.00 Overcast OVC006 46.9 46.9 100% 30.3 1027.6
06 13:56 SE 8 6.00 Overcast with Haze OVC006 46.4 0 0% 43 30.31 1027.8
06 12:56 NE 3 6.00 Overcast with Haze OVC004 46.4 0 46.9 44.1 0% 30.32 1028.2
06 11:56 Vrbl 3 6.00 Overcast with Haze OVC004 46.4 0 0% 30.32 1028.4
06 10:56 E 5 6.00 Overcast with Haze OVC004 46.4 0 0% 45 30.3 1027.8
06 09:56 E 5 3.00 Fog/Mist OVC002 44.6 0 0% 43 30.31 1027.9
06 08:56 E 3 0.25 Fog OVC002 44.6 0 0% 30.3 1027.5
06 07:56 E 3 0.25 Fog OVC002 46.4 0 0% 30.27 1026.7
06 06:56 E 5 0.25 Fog BKN002 OVC018 46.4 0 48.9 46 0% 45 30.24 1025.5
06 05:56 SE 5 0.50 Fog BKN002 OVC017 46.4 0 0% 45 30.24 1025.5
06 04:56 Vrbl 3 1.00 Fog/Mist OVC002 46.4 0 0% 30.21 1024.6
06 03:56 Calm 1.50 Fog/Mist OVC002 46.4 0 0% 30.2 1024.3
06 02:56 Calm 1.25 Fog/Mist OVC002 48.2 0 0% 30.19 1024.0
06 01:56 Calm 1.75 Fog/Mist OVC004 48.2 0 0% 30.19 1024.0
06 00:56 Calm 1.25 Light Rain OVC004 48.2 0 51.1 48 0% 30.18 1023.5 0.01 0.24
05 23:56 Calm 1.50 Fog/Mist FEW004 OVC085 48.2 0 0% 30.17 1023.3
05 22:56 E 5 2.50 Light Rain BKN080 OVC100 48.2 0 0% 47 30.15 1022.3 0.14
05 21:56 Calm 2.00 Rain BKN007 BKN017 OVC029 48.2 0 0% 30.23 1025.1 0.06 0.09
05 20:56 Calm 3.00 Light Rain OVC007 48.2 0 0% 30.15 1022.5
05 19:56 E 3 5.00 Light Rain SCT085 OVC110 48.2 0 0% 30.12 1021.3 0.03
05 18:56 E 3 5.00 Fog/Mist OVC100 51.1 51.1 57.9 51.1 100% 30.12 1021.4
05 17:56 Vrbl 5 6.00 Fog/Mist CLR 54 54 100% 30.12 1021.5
05 16:56 E 5 7.00 Fair CLR 55 54 96% 30.13 1021.9
05 15:56 E 6 9.00 Fair CLR 57.9 54 87% 30.13 1021.7
05 14:56 E 6 9.00 Mostly Cloudy BKN012 55.9 55.9 100% 30.14 1022.0
05 13:56 Calm 7.00 Overcast OVC008 54 54 100% 30.14 1022.3
05 12:56 Calm 5.00 Fog/Mist OVC008 53.1 53.1 53.1 44.1 100% 30.16 1022.9
05 11:56 Calm 4.00 Overcast with Haze OVC004 50 0 0% 30.19 1023.7
05 10:51 Calm 3.00 Fog/Mist OVC004 48.2 0 0% 30.2 1024.2
05 09:56 Calm 1.00 Fog/Mist OVC002 46.4 0 0% 30.2 1024.4
05 08:56 E 3 0.25 Fog OVC002 46.4 0 0% 30.19 1023.8
05 07:56 Calm 0.15 Fog OVC002 45 45 100% 30.19 1023.8
05 06:56 Calm 0.15 Fog OVC002 44.6 0 45 44.1 0% 30.17 1023.4
05 05:56 Calm 0.25 Fog OVC002 44.6 0 0% 30.16 1023.1
05 04:56 E 3 0.25 Fog OVC002 44.6 0 0% 30.17 1023.2
05 03:56 Calm 0.25 Fog OVC002 44.6 0 0% 30.18 1023.5
05 02:56 Calm 0.25 Fog OVC002 44.6 0 0% 30.18 1023.4
05 01:56 Calm 0.25 Fog OVC002 44.6 0 0% 30.2 1024.5
05 00:56 Calm 0.25 Fog OVC002 44.6 0 46.9 45 0% 30.22 1025.1
04 23:56 Calm 0.50 Fog OVC002 44.6 0 0% 30.22 1024.9
Date Time (est) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)