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 11:56 S 6 10.00 Fair CLR 54 30.9 42% 30.55 1036.2
09 10:56 Calm 10.00 Fair CLR 48.9 32 52% 30.57 1036.8
09 09:56 Vrbl 5 10.00 A Few Clouds FEW017 45 35.1 68% 43 30.58 1037.3
09 08:56 SE 3 10.00 Partly Cloudy SCT014 39.9 36 86% 30.58 1037.5
09 07:56 SE 5 10.00 Fair CLR 34 33.1 37 28.9 97% 30 30.58 1037.4
09 06:56 Calm 10.00 Fair CLR 30 28 92% 30.56 1037.0
09 05:56 Calm 10.00 A Few Clouds FEW013 28.9 25 85% 30.56 1036.8
09 04:56 Calm 10.00 Fair CLR 32 30 92% 30.55 1036.4
09 03:56 Calm 10.00 Fair CLR 34 30.9 89% 30.55 1036.3
09 02:56 SE 3 10.00 Fair CLR 35.1 32 89% 30.55 1036.4
09 01:56 SE 3 10.00 Fair CLR 37 30 46 37 76% 30.56 1036.6
09 00:56 SE 6 10.00 Fair CLR 39 28.9 67% 35 30.57 1036.9
08 23:56 SE 8 10.00 Fair CLR 41 27 57% 36 30.56 1036.7
08 22:56 SE 7 10.00 Fair CLR 39.9 25 55% 36 30.56 1036.7
08 21:56 SE 6 10.00 Fair CLR 41 23 49% 38 30.56 1036.9
08 20:56 SE 7 10.00 Fair CLR 44.1 18 35% 41 30.55 1036.4
08 19:56 SE 8 10.00 Fair CLR 46 15.1 55 46 29% 42 30.53 1035.7
08 18:56 SE 12 10.00 Fair CLR 50 14 24% 46 30.53 1035.6
08 17:56 SE 5 10.00 Fair CLR 53.1 16 23% 30.52 1035.4
08 16:56 Vrbl 5 10.00 Fair CLR 54 14 20% 30.53 1035.6
08 15:56 Vrbl 3 10.00 Fair CLR 53.1 15.1 22% 30.54 1036.1
08 14:56 Vrbl 6 10.00 Fair CLR 53.1 19.9 27% 30.56 1036.5
08 13:56 Vrbl 7 10.00 Fair CLR 50 18 51.1 30.9 28% 48 30.57 1037.1
08 12:56 Calm 10.00 Fair CLR 48.9 12.9 23% 30.59 1037.8
08 11:56 Calm 10.00 Fair CLR 46.9 12 24% 30.62 1038.6
08 10:56 Vrbl 5 10.00 Fair CLR 44.1 12.9 28% 42 30.62 1038.8
08 09:56 NE 6 10.00 Fair CLR 39.9 14 35% 36 30.62 1038.7
08 08:56 Vrbl 3 10.00 Fair CLR 36 16 44% 30.61 1038.3
08 07:56 Calm 10.00 Fair CLR 30.9 18 35.1 28 59% 30.6 1038.0
08 06:56 Calm 10.00 Fair CLR 28.9 18 63% 30.57 1037.0
08 05:56 Calm 10.00 Fair CLR 30 17.1 58% 30.54 1036.1
08 04:56 NE 3 10.00 Fair CLR 30.9 18 59% 30.51 1035.1
08 03:56 Vrbl 3 10.00 Fair CLR 32 18 56% 30.5 1034.5
08 02:56 NE 3 10.00 Fair CLR 34 17.1 50% 30.49 1034.4
08 01:56 N 3 10.00 Fair CLR 35.1 17.1 44.1 35.1 48% 30.48 1033.9
08 00:56 N 5 10.00 Fair CLR 36 17.1 46% 33 30.48 1034.0
07 23:56 Calm 10.00 Fair CLR 37 17.1 44% 30.48 1034.0
07 22:56 Calm 10.00 Fair CLR 37 18 46% 30.46 1033.3
07 21:56 Calm 10.00 Fair CLR 37.9 19.9 48% 30.45 1032.7
07 20:56 Calm 10.00 Fair CLR 42.1 16 35% 30.43 1032.0
07 19:56 N 3 10.00 Fair CLR 44.1 15.1 54 44.1 31% 30.4 1031.0
07 18:56 Calm 10.00 Fair CLR 48.9 16 27% 30.38 1030.3
07 17:56 Vrbl 7 10.00 Fair CLR 52 17.1 25% 30.35 1029.4
07 16:56 NW 9 G 17 10.00 Fair CLR 53.1 17.1 24% 30.33 1028.5
07 15:56 W 15 G 21 10.00 Fair CLR 52 16 24% 30.32 1028.3
07 14:56 NW 18 G 24 10.00 Fair CLR 52 12 20% 30.32 1028.3
07 13:56 NW 13 G 22 10.00 Fair CLR 52 15.1 55 45 23% 30.31 1028.2
07 12:56 N 8 G 18 10.00 Fair CLR 53.1 16 23% 30.31 1027.9
07 11:56 Vrbl 7 G 24 10.00 Fair CLR 51.1 23 33% 30.3 1027.8
07 10:56 W 15 G 25 10.00 Mostly Cloudy BKN060 50 26.1 39% 45 30.29 1027.4
07 09:56 NW 16 G 28 10.00 Fair CLR 48.9 25 39% 44 30.27 1026.6
07 08:56 NW 15 G 26 10.00 Fair CLR 46.9 24.1 41% 41 30.25 1026.0
07 07:56 NW 10 10.00 Fair CLR 45 25 46.9 43 46% 40 30.24 1025.6
07 06:56 NW 7 10.00 Fair CLR 44.1 28 53% 41 30.2 1024.3
07 05:56 NW 9 10.00 Fair CLR 45 30.9 58% 41 30.16 1023.0
07 04:56 Calm 10.00 A Few Clouds FEW075 43 34 71% 30.14 1022.2
07 03:56 NW 3 10.00 Fair CLR 44.1 34 68% 30.12 1021.6
07 02:56 Calm 10.00 A Few Clouds FEW090 45 35.1 68% 30.1 1020.9
07 01:56 Calm 10.00 Overcast OVC100 46.9 35.1 54 46.9 63% 30.1 1020.7
07 00:56 Calm 10.00 Mostly Cloudy FEW080 BKN100 48.9 33.1 55% 30.1 1020.8
06 23:56 Calm 10.00 Overcast BKN085 OVC110 48 37.9 68% 30.1 1020.9
06 22:56 Calm 10.00 Mostly Cloudy BKN100 50 34 54% 30.1 1020.7
06 21:56 Calm 10.00 Overcast OVC100 53.1 34 48% 30.11 1021.1
06 20:56 Calm 10.00 Overcast OVC100 54 30.9 42% 30.09 1020.6
06 19:56 NW 3 10.00 Mostly Cloudy BKN100 54 30 60.1 54 40% 30.07 1019.6
06 18:56 Vrbl 7 10.00 Partly Cloudy SCT100 57 30 36% 30.06 1019.6
06 17:56 W 10 G 17 10.00 Mostly Cloudy BKN085 57.9 30.9 36% 30.05 1019.1
06 16:56 W 9 G 17 10.00 Mostly Cloudy SCT075 BKN090 60.1 30.9 33% 30.05 1018.9
06 15:56 W 14 G 18 10.00 Overcast BKN080 OVC090 57.9 30.9 36% 30.05 1019.2
06 14:56 Vrbl 3 10.00 Mostly Cloudy BKN070 BKN080 57.9 30 35% 30.07 1019.7
06 13:56 W 10 10.00 Mostly Cloudy BKN070 57 30 57 44.1 36% 30.11 1021.0
06 12:56 W 12 10.00 Partly Cloudy SCT060 54 28.9 38% 30.13 1022.0
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)