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.
19 01:56 Calm 10.00 Fair CLR 37 37 46 37 100% 30.51 1034.6
19 00:56 Calm 10.00 Fair CLR 37.9 37.9 100% 30.52 1034.9
18 23:56 Calm 10.00 Fair CLR 37.9 37.9 100% 30.53 1035.5
18 22:56 Calm 10.00 Fair CLR 39.9 39 97% 30.54 1035.7
18 21:56 Calm 10.00 Fair CLR 41 37.9 89% 30.54 1035.9
18 20:56 Calm 10.00 Fair CLR 45 36 71% 30.54 1036.0
18 19:56 Calm 10.00 Fair CLR 45 36 63 45 71% 30.55 1036.3
18 18:56 Calm 10.00 Fair CLR 48 39 71% 30.54 1036.1
18 17:56 Calm 10.00 Fair CLR 57.9 35.1 42% 30.54 1035.9
18 16:56 Vrbl 3 10.00 Fair CLR 60.1 28.9 31% 30.56 1036.3
18 15:56 Calm 10.00 Fair CLR 61 27 27% 30.57 1036.8
18 14:56 Vrbl 3 10.00 Fair CLR 61 28 29% 30.57 1037.0
18 13:56 Vrbl 3 10.00 Fair CLR 61 27 61 35.1 27% 30.59 1037.6
18 12:56 Vrbl 5 10.00 Fair CLR 59 26.1 28% 30.61 1038.2
18 11:56 Calm 10.00 Fair CLR 57 27 32% 30.63 1038.9
18 10:56 Vrbl 6 10.00 Fair CLR 54 30 40% 30.63 1038.7
18 09:56 Vrbl 3 10.00 Fair CLR 48.9 30.9 50% 30.61 1038.4
18 08:56 Vrbl 6 10.00 Fair CLR 42.1 32 68% 39 30.6 1038.0
18 07:56 Calm 10.00 Fair CLR 35.1 35.1 39.9 34 100% 30.57 1037.2
18 06:56 Calm 10.00 Fair CLR 35.1 35.1 100% 30.55 1036.3
18 05:56 Calm 10.00 Fair CLR 36 33.1 89% 30.52 1035.4
18 04:56 Calm 10.00 Fair CLR 36 33.1 89% 30.5 1034.7
18 03:56 Calm 10.00 Fair CLR 39 30.9 73% 30.5 1034.4
18 02:56 Calm 10.00 Fair CLR 39 30.9 73% 30.49 1034.2
18 01:56 Calm 10.00 Fair CLR 39 32 45 37 76% 30.47 1033.6
18 00:56 Calm 10.00 Fair CLR 37.9 37.9 100% 30.47 1033.4
17 23:56 Calm 10.00 Fair CLR 37.9 35.1 89% 30.46 1033.3
17 22:56 Calm 10.00 Fair CLR 41 34 76% 30.45 1033.0
17 21:56 Calm 10.00 Fair CLR 42.1 33.1 71% 30.43 1032.2
17 19:56 Calm 10.00 Fair CLR 45 33.1 57.9 45 63% 30.38 1030.4
17 18:56 Calm 10.00 Fair CLR 48 32 54% 30.34 1029.1
17 17:56 Vrbl 3 10.00 Fair CLR 53.1 33.1 47% 30.31 1027.9
17 16:56 Vrbl 3 10.00 Fair CLR 55.9 35.1 46% 30.29 1026.9
17 15:56 N 8 G 18 10.00 Fair CLR 57 35.1 44% 30.27 1026.4
17 14:56 NW 8 G 21 7.00 Mostly Cloudy BKN050 57 35.1 44% 30.27 1026.3
17 13:56 Vrbl 7 10.00 Mostly Cloudy BKN045 57 37 57 51.1 47% 30.26 1026.0
17 12:56 Vrbl 7 10.00 Mostly Cloudy BKN039 52 39 61% 30.27 1026.4
17 11:56 Vrbl 7 10.00 Mostly Cloudy BKN043 52 39.9 64% 30.26 1026.0
17 10:56 Vrbl 7 10.00 Mostly Cloudy BKN039 BKN120 51.1 41 69% 30.22 1024.7
17 09:56 Vrbl 6 10.00 Partly Cloudy SCT120 51.1 39.9 66% 30.2 1024.0
17 08:56 Vrbl 3 10.00 Overcast OVC036 51.1 44.1 77% 30.15 1022.2
17 07:56 Vrbl 3 10.00 Fair CLR 51.1 46 59 51.1 83% 30.11 1020.8 0.02
17 06:56 Vrbl 3 10.00 Overcast FEW024 BKN045 OVC120 53.1 53.1 100% 30.07 1019.6 0.01
17 05:56 Vrbl 5 10.00 Light Rain OVC033 54 53.1 97% 30.05 1018.7
17 04:56 Vrbl 3 10.00 Light Rain FEW037 BKN070 OVC100 55 55 100% 29.99 1016.5 0.01
17 03:56 W 5 10.00 Light Rain SCT060 BKN080 OVC100 55 55 100% 29.98 1016.2 0.01
17 02:56 NW 9 10.00 Light Rain OVC047 57 53.1 87% 29.95 1015.3
17 01:56 NW 5 10.00 Overcast BKN043 OVC100 57.9 52 62.1 57.9 81% 29.94 1014.8
17 00:56 NW 7 10.00 Overcast OVC090 60.1 50 70% 29.94 1014.7
16 23:56 NW 12 10.00 Overcast OVC085 61 52 72% 29.92 1014.2
16 22:56 NW 8 10.00 Overcast BKN085 OVC110 62.1 53.1 73% 29.9 1013.8
16 21:56 NW 5 10.00 Overcast OVC080 61 55 81% 29.87 1012.7
16 20:56 NW 6 10.00 Mostly Cloudy SCT070 SCT080 BKN100 61 57 87% 29.86 1012.6
16 19:56 NW 5 10.00 Mostly Cloudy SCT070 SCT100 BKN120 62.1 62.1 82.9 62.1 100% 29.85 1012.1 0.03 0.46
16 18:56 Vrbl 5 3.00 Heavy Rain Fog/Mist FEW039 BKN060 OVC100 64.9 64.9 100% 29.83 1011.2 0.43
16 17:56 W 3 10.00 Partly Cloudy SCT075 SCT095 78.1 69.1 74% 80 29.74 1008.1
16 16:56 SW 9 10.00 Fair CLR 82 70 67% 86 29.74 1008.1
16 15:56 SW 8 10.00 Fair CLR 82 69.1 65% 85 29.74 1008.0
16 13:56 SW 6 10.00 Fair CLR 79 69.1 79 62.1 72% 82 29.78 1009.4
16 12:56 S 9 10.00 Partly Cloudy SCT010 75 68 79% 76 29.83 1011.1
16 11:56 Vrbl 5 10.00 Overcast OVC006 69.1 69.1 100% 29.86 1012.1
16 10:56 SW 7 10.00 Overcast OVC004 66 66 100% 29.88 1013.2
16 09:56 S 7 5.00 Overcast with Haze OVC004 62.6 0 0% 29.91 1014.0
16 08:56 S 6 4.00 Fog/Mist OVC004 63 63 100% 29.93 1014.7
16 07:56 SW 5 5.00 Overcast with Haze OVC004 62.6 0 62.1 60.1 0% 29.94 1015.2
16 06:56 Vrbl 7 7.00 Overcast OVC002 62.1 62.1 100% 29.96 1015.8
16 05:56 S 8 3.00 Fog/Mist OVC002 60.8 0 0% 29.97 1016.2
16 04:56 S 7 1.50 Fog/Mist OVC002 60.8 0 0% 29.98 1016.4
16 03:56 S 6 1.50 Fog/Mist OVC002 60.1 60.1 100% 30.02 1017.8
16 02:56 SE 5 2.50 Fog/Mist OVC004 60.1 60.1 100% 30.05 1018.9
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)