Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (edt) 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.
06 01:56 Calm 10.00 Fair CLR 46.9 39.9 60.1 45 77% 30.18 1023.4
06 00:56 Calm 10.00 Fair CLR 48.9 41 74% 30.18 1023.2
05 23:56 Calm 10.00 Fair CLR 52 42.1 69% 30.18 1023.2
05 22:56 Calm 10.00 Fair CLR 52 45 77% 30.17 1022.8
05 21:56 Calm 10.00 Fair CLR 55 45 69% 30.15 1022.2
05 20:56 NW 5 10.00 Fair CLR 55.9 46 70% 30.13 1021.5
05 19:56 Vrbl 5 10.00 Fair CLR 60.1 45 71.1 59 58% 30.11 1020.8
05 18:56 Calm 10.00 Fair CLR 63 44.1 50% 30.09 1020.2
05 17:56 NW 8 G 17 10.00 Fair CLR 68 44.1 42% 30.06 1019.2
05 16:56 NW 9 10.00 Fair CLR 70 46 42% 30.05 1018.6
05 15:56 Vrbl 7 10.00 Fair CLR 70 46.9 44% 30.04 1018.5
05 14:56 NW 13 G 22 10.00 A Few Clouds FEW060 71.1 48 44% 30.05 1018.6
05 13:56 W 14 G 18 10.00 A Few Clouds FEW049 71.1 51.1 71.1 55.9 49% 30.06 1019.1 0.01
05 12:56 NW 12 G 21 10.00 Fair CLR 70 51.1 51% 30.08 1019.8
05 11:56 NW 13 G 21 10.00 Partly Cloudy SCT032 68 55 63% 30.09 1020.1
05 10:56 NW 7 10.00 Partly Cloudy SCT021 66 57 73% 30.1 1020.4 0.01
05 09:56 W 10 10.00 Fair CLR 62.1 62.1 100% 30.1 1020.6
05 08:56 W 6 0.50 Fog BKN002 OVC019 57.9 57.9 100% 30.08 1019.9 0.01
05 07:56 W 5 4.00 Fog/Mist CLR 55.9 55.9 60.1 55.9 100% 30.07 1019.6
05 06:56 W 7 9.00 Partly Cloudy SCT006 57.2 0 0% 30.06 1019.2
05 05:56 W 3 10.00 Overcast OVC006 57.9 57.9 100% 30.06 1019.2
05 04:56 W 6 5.00 Fog/Mist OVC003 59 59 100% 30.06 1019.1
05 03:56 Vrbl 5 6.00 Fog/Mist OVC003 59 59 100% 30.06 1019.4
05 02:56 W 7 0.75 Fog/Mist BKN003 OVC018 59 59 100% 30.08 1020.0
05 01:56 Calm 0.25 Fog OVC003 59 59 61 59 100% 30.09 1020.1
05 00:56 Calm 5.00 Fog/Mist BKN003 OVC029 60.1 60.1 100% 30.09 1020.2
04 23:56 Calm 9.00 Overcast OVC004 61 61 100% 30.12 1021.1
04 22:56 Calm 10.00 Overcast BKN006 OVC010 61 61 100% 30.12 1021.3
04 21:56 Calm 7.00 Overcast BKN006 OVC020 60.8 0 0% 30.13 1021.4
04 20:56 Calm 10.00 Overcast OVC006 60.8 0 0% 30.13 1021.6
04 19:56 Calm 10.00 Overcast SCT004 OVC020 60.8 0 64 61 0% 30.11 1020.9 0.01
04 18:56 Calm 2.50 Light Rain Fog/Mist BKN006 OVC013 61 61 100% 30.11 1021.1
04 17:56 Calm 10.00 Overcast BKN009 OVC013 62.6 0 0% 30.11 1020.7
04 16:56 Calm 10.00 Overcast BKN010 OVC014 63 63 100% 30.12 1021.1 0.01
04 15:56 Calm 10.00 Overcast BKN006 OVC012 63 63 100% 30.13 1021.4 0.01
04 14:56 Calm 2.00 Light Rain OVC006 62.6 0 0% 30.14 1021.9
04 12:56 Vrbl 3 3.00 Fog/Mist OVC008 62.1 62.1 100% 30.16 1022.8
04 11:56 Calm 8.00 Overcast OVC008 62.1 62.1 100% 30.19 1023.7
04 10:56 Vrbl 6 3.00 Fog/Mist OVC006 60.8 0 0% 30.2 1024.0 0.02
04 08:56 Calm 3.00 Light Rain Fog/Mist OVC004 60.1 60.1 100% 30.22 1024.6 0.01
04 07:56 Calm 2.00 Light Rain OVC006 59 0 61 59 0% 30.22 1024.5 0.04
04 06:56 Calm 10.00 Overcast OVC006 59 0 0% 30.22 1024.7 0.01
04 05:56 Calm 8.00 Light Rain BKN006 OVC050 59 0 0% 30.22 1024.6 0.01
04 04:56 Calm 4.00 Light Rain OVC006 59 0 0% 30.23 1024.8 0.02 0.02
04 03:56 Calm 6.00 Light Rain OVC008 59 0 0% 30.22 1024.6
04 02:56 Calm 10.00 Overcast BKN017 OVC025 60.1 60.1 100% 30.23 1025.0
04 01:56 Calm 10.00 Overcast BKN017 OVC031 61 61 61 59 100% 30.24 1025.4
04 00:56 Calm 10.00 Overcast OVC017 60.1 60.1 100% 30.26 1025.9
03 23:56 Calm 10.00 Overcast OVC021 59 0 0% 30.27 1026.5
03 22:56 Calm 10.00 Overcast FEW029 OVC046 60.1 60.1 100% 30.27 1026.2
03 21:56 Calm 10.00 Overcast OVC048 59 59 100% 30.27 1026.4
03 20:56 Calm 10.00 Overcast SCT055 OVC090 59 59 100% 30.27 1026.3
03 19:56 Calm 10.00 Overcast OVC095 59 57.9 66.9 59 96% 30.27 1026.1
03 18:56 Calm 10.00 Overcast FEW065 OVC100 61 55 81% 30.26 1025.8
03 17:56 Calm 10.00 Overcast OVC065 63 57.9 84% 30.25 1025.6
03 16:56 E 5 10.00 Mostly Cloudy SCT070 BKN120 64.9 55.9 73% 30.25 1025.6
03 15:56 Calm 10.00 Overcast FEW070 OVC100 66 55 68% 30.25 1025.6
03 14:56 E 3 10.00 Overcast OVC070 64.9 54 68% 30.26 1025.9
03 13:56 Calm 10.00 Overcast FEW075 OVC100 64.9 55.9 64.9 55.9 73% 30.27 1026.0 0.06
03 12:56 Vrbl 3 10.00 Overcast OVC075 64 54 70% 30.27 1026.2
03 11:56 Vrbl 3 10.00 Overcast BKN090 OVC110 61 55 81% 30.27 1026.4
03 10:56 Calm 10.00 Overcast FEW070 BKN090 OVC100 57.9 57 97% 30.28 1026.5 0.01 0.06
03 09:56 Calm 9.00 Light Rain OVC100 55.9 55.9 100% 30.27 1026.1 0.04
03 08:56 Calm 10.00 Light Rain OVC100 57 57 100% 30.25 1025.7 0.01
03 07:56 Calm 10.00 Light Rain FEW065 OVC100 55.9 55.9 64.9 55.9 100% 30.23 1025.0 0.03
03 06:56 Calm 10.00 Light Rain OVC100 55.9 55.9 100% 30.2 1024.0
03 05:56 Calm 10.00 Light Rain FEW120 55.9 55.9 100% 30.19 1023.2 0.01
03 04:56 Calm 10.00 Light Rain SCT065 SCT080 BKN090 55.9 55.9 100% 30.18 1023.0 0.02 0.02
03 03:56 Calm 10.00 Light Rain FEW110 57.9 51.1 78% 30.15 1021.9
03 02:56 Vrbl 3 10.00 Overcast OVC030 61 55 81% 30.13 1021.2
Date Time (edt) 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)