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.
26 19:56 NW 8 10.00 Fair CLR 18 3.9 54% 9 30.08 1021.0
26 18:56 NW 14 10.00 Fair CLR 18 3.9 27 18 54% 5 30.06 1020.4
26 17:56 NW 22 G 26 10.00 Fair and Breezy CLR 19 5 54% 3 30.02 1018.7
26 16:56 NW 15 G 23 10.00 Mostly Cloudy BKN050 21.9 6.1 50% 10 29.99 1018.0
26 15:56 NW 13 G 26 10.00 Partly Cloudy SCT048 24.1 8.1 50% 13 29.96 1016.8
26 14:56 NW 18 10.00 Mostly Cloudy BKN046 25 9 50% 12 29.93 1015.9
26 13:56 NW 20 G 25 10.00 A Few Clouds FEW043 26.1 10 51% 13 29.91 1015.3
26 12:56 NW 22 G 33 10.00 Fair and Breezy CLR 26.1 10.9 27 16 53% 13 29.91 1015.1
26 11:56 NW 18 G 24 10.00 Overcast OVC120 26.1 12 55% 14 29.9 1015.0
26 09:56 NW 16 G 29 10.00 Mostly Cloudy BKN100 24.1 15.1 68% 12 29.91 1015.1
26 08:56 NW 12 G 20 10.00 Mostly Cloudy BKN110 23 19 85% 13 29.91 1015.1
26 07:56 W 3 10.00 Overcast FEW040 OVC095 18 16 92% 29.88 1014.2
26 06:56 Calm 10.00 Overcast OVC034 16 14 16 12.9 92% 29.87 1013.8
26 05:56 NW 5 10.00 Overcast SCT028 BKN034 OVC090 16 14 92% 10 29.84 1012.9
26 04:56 Calm 9.00 Overcast BKN006 OVC095 12.9 10.9 92% 29.82 1012.0
26 03:56 Calm 8.00 Overcast OVC006 14 12 92% 29.78 1011.0
26 02:56 Calm 10.00 Overcast OVC006 14 12 92% 29.79 1011.2
26 01:56 Vrbl 3 10.00 Overcast OVC006 15.1 12.9 91% 29.78 1010.9
26 00:56 NW 7 10.00 Overcast OVC008 16 12.9 17.1 15.1 88% 7 29.78 1010.9 0.03
25 23:56 W 3 10.00 Overcast OVC008 16 12.9 88% 29.79 1011.2
25 22:56 Vrbl 3 10.00 Overcast OVC008 16 12.9 88% 29.78 1010.7
25 21:56 NW 5 10.00 Overcast OVC010 15.1 12.9 91% 9 29.81 1011.8 0.03
25 20:56 Vrbl 6 10.00 Overcast OVC010 16 12.9 88% 8 29.79 1011.4
25 19:56 NW 8 10.00 Overcast OVC010 17.1 15.1 92% 7 29.76 1010.1 0.03
25 18:56 Vrbl 3 6.00 Light Snow Fog/Mist OVC012 16 14 19.9 16 92% 29.77 1010.5 0.06 0.46
25 17:56 NW 5 1.75 Light Snow Fog/Mist OVC014 17.1 14 88% 11 29.81 1012.1 0.07
25 16:56 NW 8 1.50 Light Snow Fog/Mist OVC012 19 16 88% 10 29.84 1013.0 0.05
25 15:56 Calm 1.25 Light Snow Fog/Mist OVC014 19.9 18 92% 29.86 1013.6 0.09 0.28
25 14:56 Calm 1.50 Light Snow Fog/Mist OVC014 19 16 88% 29.93 1015.8 0.1
25 13:56 NE 5 1.00 Light Snow Fog/Mist BKN015 BKN024 OVC033 19 16 88% 13 29.98 1017.8 0.09
25 12:56 Calm 0.75 Light Snow Fog/Mist BKN019 OVC025 19 16 19 12.9 88% 30.07 1020.7 0.04
25 11:56 Vrbl 7 0.75 Light Snow Fog/Mist OVC013 17.1 14 88% 8 30.11 1021.9 0.04
25 10:56 Vrbl 6 1.00 Light Snow Fog/Mist OVC016 16 12.9 88% 8 30.2 1025.2
25 09:56 NE 6 0.75 Light Snow Fog/Mist OVC016 14 12 92% 6 30.25 1026.9
25 08:56 NE 6 1.25 Light Snow Fog/Mist OVC022 14 12 92% 6 30.3 1028.6
25 07:56 Vrbl 6 0.50 Snow Freezing Fog BKN010 OVC015 12.9 10.9 92% 5 30.33 1029.8
25 06:56 NE 6 0.75 Light Snow Fog/Mist OVC008 12.9 10.9 15.1 12.9 92% 5 30.37 1031.2 0.06
25 05:56 NE 5 0.75 Light Snow Fog/Mist OVC006 12.9 10.9 92% 6 30.43 1033.1
25 04:56 Calm 0.75 Light Snow Fog/Mist OVC008 12.9 10.9 92% 30.45 1033.8 0.01
25 03:56 Vrbl 5 0.75 Light Snow Fog/Mist OVC011 12.9 10.9 92% 6 30.47 1034.3 0.02 0.05
25 02:56 E 5 1.50 Light Snow Fog/Mist OVC015 14 10.9 88% 7 30.51 1035.8 0.03
25 01:56 E 5 1.50 Light Snow Fog/Mist BKN020 OVC028 12.9 10 88% 6 30.53 1036.3
25 00:56 Vrbl 5 9.00 Light Snow OVC080 15.1 7 16 14 70% 9 30.57 1037.6
24 23:56 SE 6 6.00 Light Snow FEW030 BKN043 OVC050 16 -0 49% 8 30.59 1038.3
24 22:56 Vrbl 5 10.00 Overcast SCT060 OVC090 16 -2.9 43% 10 30.61 1039.2
24 21:56 Vrbl 3 10.00 Overcast OVC095 16 -2 45% 30.62 1039.6
24 20:56 Vrbl 3 10.00 Overcast BKN065 OVC080 16 -4 41% 30.64 1040.1
24 19:56 N 3 10.00 Overcast OVC085 16 -5.1 38% 30.65 1040.6
24 18:56 N 3 10.00 Overcast OVC100 16 -5.1 19 16 38% 30.65 1040.6
24 17:56 N 5 10.00 Partly Cloudy SCT120 16 -6 37% 10 30.64 1040.5
24 16:56 N 5 10.00 Fair CLR 16 -6 37% 10 30.63 1040.0
24 15:56 Vrbl 6 10.00 Fair CLR 18 -6 34% 11 30.63 1039.9
24 14:56 Vrbl 3 10.00 Overcast OVC090 17.1 -8 32% 30.62 1039.6
24 13:56 N 6 10.00 A Few Clouds FEW100 18 -6 34% 11 30.63 1040.0
24 12:56 Vrbl 5 10.00 Fair CLR 17.1 -6 18 7 35% 11 30.64 1040.4
24 11:56 Vrbl 3 10.00 Fair CLR 16 -7.1 35% 30.68 1041.4
24 10:56 Vrbl 3 10.00 A Few Clouds FEW110 15.1 -6 38% 30.7 1042.3
24 09:56 Vrbl 3 10.00 Partly Cloudy SCT110 12.9 -6 42% 30.71 1042.5
24 08:56 NW 6 10.00 A Few Clouds FEW120 9 -8 46% 0 30.69 1042.0
24 07:56 Vrbl 5 10.00 Fair CLR 8.1 -9 45% 0 30.67 1041.0
24 06:56 Calm 10.00 Fair CLR 7 -8 12.9 6.1 50% 30.65 1040.6
24 05:56 Vrbl 3 10.00 Fair CLR 6.1 -8 52% 30.63 1039.8
24 04:56 Vrbl 5 10.00 Fair CLR 6.1 -9 49% -2 30.61 1039.2
24 03:56 Vrbl 3 10.00 Fair CLR 7 -9.9 45% 30.59 1038.2
24 02:56 Vrbl 6 10.00 Fair CLR 9 -9.9 41% 0 30.57 1037.5
24 01:56 N 7 10.00 Fair CLR 10.9 -7.1 44% 1 30.55 1037.0
24 00:56 Vrbl 7 10.00 Fair CLR 12.9 -8 34 12.9 38% 4 30.53 1036.2
23 23:56 Vrbl 6 G 17 10.00 Fair CLR 15.1 -7.1 36% 7 30.49 1034.9
23 22:56 N 12 G 20 10.00 Fair CLR 17.1 -0.9 45% 5 30.47 1034.2
23 21:56 N 10 G 21 10.00 Fair CLR 19.9 3 48% 9 30.44 1032.9
23 20:56 NW 12 G 22 10.00 Fair CLR 25 3.9 40% 15 30.37 1030.6
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)