Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
29 02:56 Calm 11.27 Fair CLR 19 0 0% 75.31 1004.8
29 01:56 Calm 14.48 Fair CLR 19 0 21.7 19.4 0% 75.29 1004.6
29 00:56 Calm 16.09 Fair CLR 20 0 0% 75.29 1004.4
28 23:56 Calm 12.87 A Few Clouds FEW003 20 0 0% 75.29 1004.5
28 22:56 Calm 4.02 Fog/Mist FEW002 19 0 0% 75.29 1004.6
28 21:56 Calm 16.09 A Few Clouds FEW006 21 0 0% 75.29 1004.6
28 20:56 Calm 16.09 Overcast SCT034 BKN043 OVC049 21 0 0% 75.26 1004.3
28 19:56 Calm 16.09 Mostly Cloudy BKN041 BKN049 22 0 31.1 20 0% 75.23 1003.8 2.13
28 18:56 S 6 16.09 Partly Cloudy SCT070 SCT080 21 0 0% 75.16 1003.0
28 17:56 Vrbl 9 16.09 Thunderstorm Heavy Rain SCT008 BKN021 OVC100 21 0 0% 75.29 1004.7 1.88
28 16:56 S 6 16.09 Thunderstorm in Vicinity Light Rain FEW044 BKN070 BKN100 26.1 25.6 97% 29 75.11 1002.0 0.25 0.25
28 15:56 S 19 16.09 Mostly Cloudy SCT037 SCT044 BKN055 29.4 21.7 63% 32 75.11 1002.2
28 14:56 S 13 16.09 Mostly Cloudy BKN035 BKN050 BKN110 30 21.7 61% 33 75.23 1003.7
28 13:56 Vrbl 11 16.09 Mostly Cloudy BKN029 28.3 22.2 29.4 23.9 70% 31 75.29 1004.4
28 12:56 S 17 16.09 Partly Cloudy FEW023 SCT120 28.3 22.2 70% 31 75.34 1005.2
28 11:56 S 13 16.09 Partly Cloudy FEW050 SCT110 26.1 21.7 77% 28 75.44 1006.4
28 10:56 Vrbl 9 16.09 Light Rain FEW031 SCT070 SCT090 25.6 22.2 82% 27 75.46 1006.7
28 09:56 Vrbl 11 16.09 Fair CLR 25.6 21.1 76% 27 75.51 1007.5
28 08:56 SW 13 16.09 Fair CLR 25.6 21.1 76% 27 75.49 1007.2
28 07:56 S 7 16.09 Mostly Cloudy FEW050 BKN120 23.9 22.8 23.9 21.1 94% 23 75.51 1007.7
28 06:56 S 9 16.09 Fair CLR 22.2 22.2 100% 75.49 1007.1
28 05:56 SE 6 16.09 Fair CLR 21.7 21.7 100% 75.51 1007.3
28 04:56 Calm 16.09 Fair CLR 21.7 21.7 100% 75.57 1008.2
28 03:56 S 6 16.09 Fair CLR 23.3 21.1 88% 75.62 1008.8
28 02:56 SE 6 16.09 Fair CLR 22.8 21.7 94% 75.67 1009.6
28 01:56 SE 6 16.09 Fair CLR 23.9 21.1 26.1 22.8 84% 24 75.72 1010.2
28 00:56 SE 6 16.09 Fair CLR 23.9 20.6 82% 24 75.72 1010.0
27 23:56 SE 6 16.09 Fair CLR 23.9 21.1 84% 24 75.74 1010.4
27 22:56 Calm 16.09 Fair CLR 23.3 21.7 91% 75.72 1010.1
27 21:56 SE 7 16.09 Fair CLR 24.4 20.6 79% 25 75.72 1010.3
27 20:56 SE 7 16.09 Fair CLR 24.4 20 77% 25 75.74 1010.5
27 19:56 Calm 16.09 Fair CLR 26.1 18.3 30 26.1 62% 27 75.74 1010.4
27 18:56 NW 6 16.09 Fair CLR 28.9 19.4 57% 30 75.74 1010.7
27 17:56 NW 9 16.09 A Few Clouds FEW047 28.9 19.4 57% 30 75.74 1010.6
27 16:56 W 6 16.09 Partly Cloudy SCT047 28.9 20 59% 31 75.74 1010.5
27 15:56 W 11 16.09 Fair CLR 29.4 20 57% 31 75.74 1010.5
27 14:56 Vrbl 7 16.09 Fair CLR 28.9 18.9 55% 30 75.82 1011.6
27 13:56 Vrbl 6 16.09 Fair CLR 29.4 20 29.4 21.7 57% 31 75.84 1012.1
27 12:56 NW 7 16.09 Mostly Cloudy BKN037 27.8 20 63% 29 75.9 1012.6
27 11:56 Vrbl 6 16.09 A Few Clouds FEW095 27.8 20 63% 29 75.92 1013.0
27 10:56 Vrbl 6 16.09 Fair CLR 27.2 20.6 67% 29 75.92 1013.1
27 08:56 Calm 16.09 Fair CLR 24.4 19.4 74% 25 75.92 1012.9
27 07:56 NW 6 16.09 Fair CLR 21.7 21.1 23.9 20 96% 75.92 1013.0
27 06:56 Calm 12.87 Fair CLR 20 0 0% 75.9 1012.8
27 05:56 Calm 14.48 A Few Clouds FEW060 20 0 0% 75.84 1012.1
27 04:56 Calm 16.09 A Few Clouds FEW065 21 0 0% 75.84 1011.9
27 03:56 Calm 16.09 Overcast BKN060 OVC080 21.7 21.7 100% 75.84 1012.0
27 02:56 W 7 12.87 Overcast BKN065 OVC085 22.8 21.7 94% 75.84 1012.0
27 01:56 SW 6 16.09 Overcast OVC060 23.9 21.1 25.6 22.8 84% 24 75.9 1012.4
27 00:56 S 6 16.09 Overcast SCT050 OVC060 24.4 20.6 79% 25 75.92 1012.8
26 23:56 S 6 16.09 Overcast BKN060 OVC080 23.9 20.6 82% 24 75.92 1012.9
26 22:56 S 6 16.09 Partly Cloudy SCT070 22.8 20.6 87% 75.92 1012.9
26 21:56 SE 6 16.09 Partly Cloudy FEW060 SCT090 22.8 20.6 87% 75.92 1013.2
26 20:56 Vrbl 6 16.09 Overcast OVC085 25 19.4 71% 26 75.9 1012.6
26 19:56 Calm 16.09 Overcast OVC080 25.6 17.8 30 25.6 62% 27 75.84 1012.2
26 18:56 Calm 16.09 Overcast BKN085 OVC100 26.1 18.9 65% 27 75.87 1012.4
26 17:56 Vrbl 7 16.09 Mostly Cloudy FEW065 SCT085 BKN110 27.8 17.8 55% 29 75.9 1012.6
26 16:56 NW 9 16.09 Overcast OVC080 27.2 18.3 58% 28 75.9 1012.9
26 15:56 Vrbl 6 16.09 Partly Cloudy FEW044 SCT055 SCT075 28.9 20 59% 31 75.9 1012.7
26 14:56 Calm 12.87 Mostly Cloudy BKN040 BKN080 28.3 20 61% 30 75.95 1013.3
26 13:56 W 7 16.09 Overcast BKN034 BKN043 OVC060 26.7 19.4 28.3 20 64% 28 76 1014.2
26 12:56 Calm 16.09 Overcast SCT034 SCT047 OVC060 27.2 20 65% 29 76.02 1014.6
26 11:56 W 9 16.09 Overcast BKN029 OVC060 25.6 19.4 69% 27 76.07 1015.1
26 09:56 SE 7 16.09 Overcast OVC048 22.8 18.9 79% 76.15 1016.1
26 08:56 SE 6 16.09 Fair CLR 22.2 18.3 79% 76.15 1016.3
26 07:56 SE 6 16.09 Fair CLR 20 17.8 20 17.2 87% 76.15 1016.2
26 06:56 Calm 16.09 Fair CLR 17.8 17.8 100% 76.15 1016.1
26 05:56 Calm 16.09 Overcast OVC080 18.3 16.7 90% 76.12 1015.9
26 04:56 Calm 16.09 Overcast OVC080 18.9 16.7 87% 76.12 1015.9
26 03:56 Calm 16.09 Overcast BKN060 OVC085 17.8 17.8 100% 76.1 1015.8
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)