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.
01 00:56 Calm 10.00 Fair CLR 39.9 35.1 54 39 83% 30 1017.3
28 23:56 SE 3 10.00 Fair CLR 42.1 35.1 76% 30.01 1017.9
28 22:56 Calm 10.00 Fair CLR 42.1 34 73% 30.02 1018.1
28 21:56 Calm 10.00 Fair CLR 45 34 66% 30.03 1018.3
28 20:56 Calm 10.00 Fair CLR 46.9 34 61% 30.03 1018.3
28 19:56 E 3 10.00 Fair CLR 50 35.1 57% 30.03 1018.4
28 18:56 E 5 10.00 Fair CLR 54 37 66 54 53% 30.02 1018.1
28 17:56 SE 5 10.00 Fair CLR 59 37 44% 30 1017.4
28 16:56 SE 6 10.00 Fair CLR 62.1 37.9 41% 29.99 1016.9
28 15:56 Vrbl 6 10.00 Fair CLR 64 37 37% 29.98 1016.9
28 14:56 S 6 10.00 Fair CLR 64 37 37% 30 1017.3
28 13:56 Calm 10.00 Fair CLR 63 37.9 40% 30.02 1017.9
28 12:56 SE 5 10.00 Fair CLR 61 39 61 34 44% 30.04 1018.7
28 11:56 Vrbl 3 10.00 Fair CLR 57.9 39 50% 30.07 1019.5
28 10:56 SW 8 10.00 Fair CLR 55 37.9 53% 30.09 1020.5
28 09:56 S 8 10.00 Fair CLR 51.1 35.1 54% 30.1 1020.8
28 08:56 S 7 10.00 Fair CLR 46.9 25 42% 44 30.1 1020.9
28 07:56 Calm 10.00 Fair CLR 37.9 26.1 62% 30.11 1021.4
28 06:56 SE 6 10.00 Fair CLR 34 24.1 39 33.1 67% 29 30.07 1020.3
28 05:56 SE 7 10.00 Fair CLR 34 24.1 67% 29 30.09 1020.6
28 04:56 SE 6 10.00 Fair CLR 35.1 23 61% 31 30.09 1020.6
28 03:56 SE 7 10.00 Fair CLR 35.1 23 61% 30 30.09 1020.6
28 02:56 SE 6 10.00 Fair CLR 37 23 57% 33 30.08 1020.3
28 01:56 Calm 10.00 Fair CLR 39 21.9 50% 30.1 1020.8
28 00:56 SE 7 10.00 Fair CLR 37.9 25 46.9 37.9 60% 33 30.09 1020.7
27 23:56 SE 6 10.00 Fair CLR 39 27 62% 35 30.1 1020.8
27 22:56 SE 7 10.00 Fair CLR 39 30 70% 35 30.11 1021.2
27 21:56 SE 7 10.00 Fair CLR 39.9 33.1 77% 36 30.11 1021.4
27 20:56 SE 7 10.00 Fair CLR 42.1 33.1 71% 38 30.11 1021.4
27 19:56 SE 6 10.00 Fair CLR 44.1 30.9 60% 41 30.1 1021.1
27 18:56 SE 6 10.00 Fair CLR 46.9 27 55.9 46.9 46% 45 30.08 1020.6
27 17:56 SE 7 10.00 Fair CLR 50 28 43% 48 30.07 1019.9
27 16:56 SE 8 10.00 Fair CLR 54 30 40% 30.06 1019.7
27 15:56 Vrbl 7 10.00 Fair CLR 55 30.9 40% 30.07 1019.9
27 14:56 SW 7 10.00 Fair CLR 55.9 30.9 39% 30.07 1019.9
27 13:56 W 7 10.00 A Few Clouds FEW049 54 30.9 42% 30.07 1019.9
27 12:56 Calm 10.00 Fair CLR 53.1 32 53.1 26.1 45% 30.08 1020.4
27 11:56 S 3 10.00 Fair CLR 52 33.1 49% 30.11 1021.5
27 10:56 NE 3 10.00 Fair CLR 48 30.9 52% 30.12 1021.7
27 09:56 NW 3 10.00 Fair CLR 43 35.1 74% 30.12 1021.9
27 08:56 Calm 4.00 Fair with Haze CLR 39.2 0 0% 30.11 1021.3
27 07:56 Calm 3.00 Fog/Mist CLR 28.9 28 96% 30.09 1021.0
27 06:56 Calm 2.00 Fog/Mist CLR 27 27 30 25 100% 30.07 1020.3
27 05:56 Calm 3.00 Fog/Mist BKN002 26.1 26.1 100% 30.04 1019.3
27 04:56 Calm 2.50 Fog/Mist BKN002 25 25 100% 30.02 1018.6
27 03:56 Calm 2.50 Fog/Mist CLR 26.6 0 0% 30 1017.9
27 02:56 Calm 4.00 Fog/Mist CLR 28 28 100% 29.99 1017.4
27 01:56 SE 5 4.00 Fair with Haze CLR 28.4 0 0% 24 29.99 1017.4
27 00:56 Calm 4.00 Fair with Haze CLR 30.2 0 41 28.9 0% 29.99 1017.5
26 23:56 Calm 4.00 Fair with Haze CLR 30.2 0 0% 29.98 1017.1
26 22:56 Calm 8.00 A Few Clouds FEW090 35.6 0 0% 29.97 1016.7
26 21:56 Calm 10.00 Overcast OVC095 37.4 0 0% 29.96 1016.3
26 20:56 Calm 10.00 Overcast BKN070 OVC100 39 39 100% 29.94 1015.8
26 19:56 Calm 10.00 Overcast FEW060 OVC075 39.9 39 97% 29.93 1015.2
26 18:56 Calm 10.00 Overcast BKN042 OVC055 39.9 39 52 39.9 97% 29.92 1014.8
26 17:56 Calm 10.00 Overcast OVC040 41 39 93% 29.89 1013.8
26 16:56 Calm 10.00 Overcast FEW036 SCT046 OVC060 41 39.9 96% 29.88 1013.6
26 15:56 Calm 10.00 Light Rain SCT035 BKN043 OVC055 42.1 39.9 92% 29.87 1013.4
26 14:56 Vrbl 3 10.00 Overcast FEW045 OVC065 45 33.1 63% 29.87 1013.3
26 13:56 Vrbl 3 10.00 Overcast BKN055 BKN070 OVC085 48.9 28 44% 29.87 1013.1
26 12:56 Vrbl 5 10.00 Partly Cloudy FEW090 SCT100 51.1 30 52 35.1 45% 29.88 1013.4
26 10:56 Calm 10.00 Mostly Cloudy BKN100 48.9 28.9 46% 29.91 1014.4
26 09:56 Vrbl 3 10.00 Fair CLR 46.9 28 48% 29.89 1013.9
26 08:56 E 3 10.00 Fair CLR 43 32 65% 29.9 1014.2
26 07:56 SE 3 10.00 Fair CLR 39 28 65% 29.88 1013.6
26 06:56 Calm 10.00 Fair CLR 37 28 37.9 34 70% 29.86 1012.7
26 05:56 Calm 10.00 Fair CLR 37 30 76% 29.84 1012.1
26 04:56 Calm 10.00 Fair CLR 37 30.9 79% 29.83 1011.6
26 03:56 Calm 10.00 Fair CLR 35.1 33.1 93% 29.8 1010.8
26 02:56 Calm 10.00 Fair CLR 34 33.1 97% 29.79 1010.5
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)