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.
29 17:56 Vrbl 3 10.00 Partly Cloudy SCT100 84.9 64.9 51% 87 30.13 1021.2
29 16:56 Vrbl 5 10.00 Fair CLR 86 68 55% 89 30.12 1020.7
29 15:56 Vrbl 3 10.00 Mostly Cloudy BKN047 BKN060 82.9 68 61% 86 30.12 1020.8
29 14:56 SE 7 10.00 A Few Clouds FEW050 86 70 59% 91 30.12 1020.9
29 13:56 Vrbl 3 10.00 Mostly Cloudy BKN060 84.9 72 86 71.1 65% 91 30.13 1021.1
29 12:56 Vrbl 5 10.00 Mostly Cloudy FEW031 BKN060 84.9 71.1 63% 90 30.14 1021.2
29 11:56 Calm 10.00 Partly Cloudy FEW025 SCT060 82 70 67% 86 30.14 1021.6
29 10:56 Calm 10.00 Overcast SCT016 OVC060 79 71.1 77% 82 30.14 1021.5
29 09:56 Vrbl 3 10.00 Overcast OVC055 75.9 75 97% 75 30.14 1021.6
29 08:56 Calm 9.00 Overcast OVC049 71.6 0 0% 30.13 1021.5
29 07:56 Calm 8.00 Overcast OVC045 71.6 0 71.1 68 0% 30.12 1020.8
29 06:56 Calm 7.00 Overcast OVC047 71.6 0 0% 30.08 1019.7
29 05:56 Calm 3.00 Fog/Mist OVC045 69.8 0 0% 30.07 1019.3
29 04:56 Calm 6.00 Overcast with Haze OVC043 69.8 0 0% 30.04 1018.3
29 03:56 Calm 6.00 Overcast with Haze FEW018 OVC043 69.8 0 0% 30.04 1018.3
29 02:56 Calm 1.00 Fog/Mist CLR 68 0 0% 30.04 1018.4
29 01:56 Calm 3.00 Fog/Mist BKN021 OVC110 69.8 0 75 70 0% 30.04 1018.4
29 00:56 Calm 4.00 Overcast with Haze OVC043 71.6 0 0% 30.05 1018.7
28 23:56 Calm 6.00 Overcast with Haze OVC043 71.6 0 0% 30.04 1018.4
28 22:56 Calm 5.00 Partly Cloudy with Haze SCT021 SCT043 69.8 0 0% 30.04 1018.3
28 21:56 Calm 6.00 Mostly Cloudy with Haze BKN021 71.6 0 0% 30.04 1018.2
28 20:56 Calm 10.00 Mostly Cloudy BKN070 71.6 0 0% 30.02 1017.5
28 19:56 SE 3 10.00 Overcast FEW039 SCT046 OVC075 73.9 73.9 79 73 100% 30.01 1017.3
28 18:56 Calm 10.00 Overcast SCT030 BKN050 OVC080 73.9 73.9 100% 30 1017.0
28 17:56 S 5 10.00 Overcast FEW018 BKN031 OVC050 75.9 75 97% 75 29.99 1016.6
28 16:56 SE 7 10.00 Overcast SCT015 BKN022 OVC060 78.1 75 90% 81 30 1016.7
28 15:56 Vrbl 3 10.00 Overcast FEW010 BKN016 OVC075 78.1 75.9 93% 81 30 1016.8
28 14:56 Vrbl 3 7.00 Overcast FEW009 OVC016 73.4 0 0% 30.01 1017.1
28 13:56 Calm 6.00 Overcast with Haze FEW007 OVC016 73.4 0 73 69.1 0% 30.01 1017.2 0.01 0.16
28 12:56 Calm 4.00 Overcast with Haze BKN006 OVC011 71.6 0 0% 30.02 1017.5
28 11:56 Calm 7.00 Overcast BKN006 OVC042 71.6 0 0% 30.01 1017.2 0.01
28 10:56 Vrbl 3 1.50 Light Rain OVC004 69.8 0 0% 30 1017.0 0.05 0.14
28 09:56 Vrbl 3 1.75 Light Rain OVC004 69.8 0 0% 30 1016.9 0.07
28 08:56 Calm 1.50 Light Rain OVC006 69.8 0 0% 30 1017.0 0.02
28 07:56 Calm 4.00 Overcast with Haze BKN004 OVC011 69.8 0 70 69.1 0% 29.99 1016.7 0.01 0.07
28 06:56 Calm 1.25 Light Rain OVC004 69.8 0 0% 29.98 1016.4 0.06
28 05:56 Vrbl 3 2.50 Light Rain OVC006 69.8 0 0% 29.98 1016.1
28 04:56 Calm 2.50 Fog/Mist OVC004 69.8 0 0% 29.97 1015.7
28 03:56 Calm 3.00 Fog/Mist OVC004 69.8 0 0% 29.96 1015.5
28 02:56 Calm 3.00 Fog/Mist OVC004 69.8 0 0% 29.98 1016.0
28 01:56 Calm 4.00 Overcast with Haze BKN004 BKN028 OVC043 69.8 0 71.1 69.1 0% 29.97 1015.9 0.08
28 00:56 Calm 3.00 Fog/Mist FEW038 OVC055 69.8 0 0% 29.99 1016.4
27 23:56 Calm 3.00 Fog/Mist FEW055 OVC110 69.8 0 0% 30 1016.8
27 22:56 Calm 4.00 Overcast with Haze BKN047 OVC055 69.8 0 0% 29.99 1016.7 0.01 0.08
27 21:56 Calm 6.00 Overcast with Haze OVC041 71.6 0 0% 30.01 1017.1
27 20:56 Calm 2.00 Light Rain FEW011 SCT026 OVC037 71.6 0 0% 29.99 1016.8 0.07
27 19:56 SE 6 3.00 Light Rain FEW006 BKN026 OVC031 71.6 0 80.1 72 0% 30 1016.8 0.04 0.05
27 18:56 Vrbl 3 9.00 Light Rain FEW019 SCT026 OVC036 71.6 0 0% 29.98 1016.4 0.01
27 17:56 SE 7 10.00 Overcast BKN021 BKN027 OVC039 75.9 73.9 94% 75 29.98 1016.2
27 16:56 Calm 10.00 Overcast FEW026 BKN036 OVC046 78.1 73 85% 81 29.98 1016.1
27 15:56 Calm 10.00 Overcast FEW024 BKN030 OVC070 78.1 71.1 79% 80 29.99 1016.5
27 14:56 Vrbl 3 10.00 A Few Clouds FEW018 79 73 82% 82 30.01 1017.1
27 13:56 Calm 10.00 Overcast FEW017 SCT075 OVC100 77 73.9 77 71.1 90% 78 30.03 1017.8
27 12:56 Calm 10.00 Overcast OVC080 75 75 100% 72 30.04 1018.1
27 11:56 Calm 10.00 Overcast BKN011 OVC120 73.9 73.9 100% 30.06 1018.9
27 10:56 Calm 10.00 Overcast OVC080 72 72 100% 30.06 1018.9
27 09:56 NW 5 10.00 Overcast SCT022 OVC026 72 71.1 97% 30.07 1019.3
27 08:56 Calm 10.00 Overcast OVC027 71.6 0 0% 30.07 1019.1
27 07:56 Calm 9.00 Overcast OVC041 71.6 0 75 70 0% 30.06 1018.7 0.37
27 06:56 Calm 6.00 Light Rain FEW055 SCT090 69.8 0 0% 30.05 1018.4 0.37
27 05:56 Calm 9.00 Overcast OVC046 71.6 0 0% 30.06 1018.7
27 04:56 Calm 10.00 Overcast SCT043 BKN050 OVC065 71.6 0 0% 30.05 1018.3
27 03:56 Calm 10.00 Light Rain BKN065 OVC090 71.6 0 0% 30.05 1018.5
27 02:56 Calm 10.00 Mostly Cloudy BKN070 BKN090 71.6 0 0% 30.05 1018.3
27 01:56 Calm 10.00 Light Rain SCT120 71.6 0 78.1 72 0% 30.07 1018.9
27 00:56 SE 3 10.00 A Few Clouds FEW120 73 73 100% 30.09 1019.6
26 23:56 Calm 10.00 Mostly Cloudy FEW060 BKN075 73 72 96% 30.1 1019.9
26 22:56 Calm 10.00 Partly Cloudy SCT120 73.9 71.1 91% 30.1 1020.3
26 21:56 Calm 10.00 Fair CLR 75 69.1 82% 75 30.1 1020.2
26 20:56 Calm 10.00 A Few Clouds FEW048 75.9 68 77% 77 30.09 1019.7
26 19:56 Calm 10.00 Partly Cloudy SCT120 78.1 68 87.1 78.1 71% 80 30.09 1019.6
26 18:56 Calm 10.00 Fair CLR 80.1 69.1 69% 83 30.07 1019.2
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)