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.
09 16:56 SW 7 10.00 Fair CLR 75 41 29% 77 29.98 1016.5
09 15:56 SW 10 G 16 10.00 Fair CLR 75 41 29% 77 29.99 1017.0
09 14:56 SW 9 10.00 Fair CLR 75 42.1 31% 77 30 1017.1
09 13:56 S 9 G 17 10.00 Fair CLR 73.9 39 73.9 39.9 28% 30.02 1017.7
09 12:56 S 12 10.00 Fair CLR 73 39 29% 30.06 1019.2
09 11:56 Vrbl 5 10.00 Fair CLR 70 39 32% 30.09 1020.0
09 10:56 Vrbl 3 10.00 Fair CLR 66 39 37% 30.1 1020.5
09 09:56 W 3 10.00 Fair CLR 57.9 39 50% 30.12 1021.3
09 07:56 Calm 10.00 Fair CLR 39.9 37.9 51.1 39.9 93% 30.07 1019.7
09 06:56 Calm 10.00 Fair CLR 41 37 86% 30.04 1018.7
09 05:56 SE 3 10.00 Fair CLR 43 36 76% 30.02 1017.8
09 04:56 Calm 10.00 Fair CLR 43 35.1 74% 30 1017.2
09 03:56 Calm 10.00 Fair CLR 46 35.1 66% 29.99 1016.8
09 02:56 Calm 10.00 Fair CLR 46 36 68% 30 1017.1
09 01:56 Calm 10.00 Fair CLR 48 34 63 45 58% 30.01 1017.4
09 00:56 Calm 10.00 Fair CLR 48.9 34 56% 30 1017.2
08 23:56 Calm 10.00 Fair CLR 48 37.9 68% 30 1017.1
08 22:56 Calm 10.00 Fair CLR 50 37.9 63% 29.99 1016.8
08 21:56 SE 6 10.00 Fair CLR 52 39.9 64% 29.97 1016.1
08 20:56 Calm 10.00 Fair CLR 54 44.1 69% 29.94 1015.2
08 19:56 NW 6 10.00 Fair CLR 62.1 41 72 62.1 46% 29.93 1014.7
08 18:56 NW 7 10.00 Fair CLR 66.9 45 45% 29.91 1014.0
08 17:56 W 10 10.00 Fair CLR 69.1 45 42% 29.88 1013.1
08 16:56 W 12 10.00 A Few Clouds FEW060 71.1 46 41% 29.87 1012.9
08 15:56 W 16 10.00 Fair CLR 71.1 48.9 46% 29.86 1012.5
08 14:56 W 15 10.00 A Few Clouds FEW060 71.1 54 55% 29.85 1012.1
08 13:56 W 7 10.00 Mostly Cloudy SCT045 BKN055 70 55 70 55.9 59% 29.85 1012.2
08 12:56 W 8 10.00 Mostly Cloudy BKN037 70 55.9 61% 29.87 1012.6
08 11:56 SW 6 10.00 A Few Clouds FEW047 70 57.9 66% 29.88 1013.2
08 10:56 W 6 10.00 A Few Clouds FEW044 66.9 59 76% 29.89 1013.3
08 09:56 Calm 10.00 Fair CLR 62.6 0 0% 29.88 1012.9
08 08:56 Calm 9.00 Overcast SCT060 OVC095 57.2 0 0% 29.88 1012.9
08 07:56 Calm 1.75 Fog/Mist OVC100 55.4 0 59 51.1 0% 29.86 1012.4
08 06:56 Calm 6.00 Overcast with Haze BKN090 OVC100 55.4 0 0% 29.85 1011.9
08 05:56 SW 3 6.00 Overcast with Haze OVC080 55.4 0 0% 29.85 1012.2
08 04:56 Calm 3.00 Fog/Mist SCT095 53.6 0 0% 29.83 1011.5
08 03:56 Calm 1.50 Fog/Mist CLR 53.6 0 0% 29.82 1011.3
08 01:56 SE 3 2.00 Fog/Mist CLR 53.6 0 0% 29.84 1011.9
08 00:56 SE 5 7.00 Partly Cloudy SCT080 53.6 0 59 53.1 0% 29.86 1012.5 0.02
07 23:56 SE 3 6.00 Light Rain BKN110 53.6 0 0% 29.88 1013.4 0.02
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
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)