Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (est) 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.
05 16:56 Calm 16.09 Fair CLR -0.6 -11.7 43% 76.15 1017.5
05 15:56 Calm 16.09 Fair CLR -0.6 -11.1 45% 76.17 1017.7
05 14:56 NW 11 16.09 Fair CLR -0.6 -12.2 42% -4 76.17 1017.8
05 13:56 NW 15 16.09 Fair CLR -0.6 -11.7 43% -5 76.23 1018.5
05 12:56 NW 7 16.09 Fair CLR 0 -12.2 0 -10 40% -2 76.3 1019.5
05 11:56 N 7 16.09 Fair CLR -1.1 -12.2 43% -3 76.43 1021.2
05 10:56 Calm 16.09 Fair CLR -1.1 -12.8 41% 76.53 1022.5
05 09:56 NE 9 16.09 Fair CLR -2.2 -12.8 44% -5 76.58 1023.0
05 08:56 Calm 16.09 Fair CLR -5 -13.3 53% 76.58 1023.2
05 07:56 Calm 16.09 Fair CLR -9.4 -13.3 74% 76.58 1023.3
05 06:56 Calm 16.09 Fair CLR -10 -12.8 -6.1 -10.6 80% 76.56 1023.2
05 05:56 Calm 16.09 Fair CLR -10.6 -12.2 88% 76.56 1023.0
05 04:56 Calm 16.09 Fair CLR -10.6 -12.8 84% 76.53 1022.8
05 03:56 Calm 16.09 Fair CLR -9.4 -11.7 84% 76.56 1022.9
05 02:56 Calm 16.09 Fair CLR -8.9 -12.2 77% 76.61 1023.4
05 01:56 Calm 16.09 Fair CLR -7.2 -12.8 65% 76.63 1023.9
05 00:56 Calm 16.09 Fair CLR -6.7 -12.8 -2.2 -6.7 62% 76.66 1024.3
04 23:56 Calm 16.09 Fair CLR -6.7 -12.2 65% 76.71 1024.9
04 22:56 Calm 16.09 Fair CLR -5.6 -11.7 63% 76.73 1025.1
04 21:56 Calm 16.09 Fair CLR -4.4 -11.7 57% 76.76 1025.3
04 20:56 Calm 16.09 Fair CLR -3.3 -11.7 53% 76.76 1025.2
04 19:56 N 6 16.09 Fair CLR -2.8 -10 58% 76.76 1025.3
04 18:56 Calm 16.09 Fair CLR -2.2 -10 2.2 -2.2 56% 76.76 1025.4
04 17:56 Calm 16.09 Fair CLR -1.7 -8.9 58% 76.76 1025.3
04 16:56 N 7 16.09 Fair CLR 0.6 -10.6 43% -1 76.71 1024.9
04 15:56 N 6 16.09 Fair CLR 1.1 -11.1 40% 76.71 1024.6
04 14:56 Vrbl 6 16.09 Fair CLR 1.7 -11.1 38% 76.68 1024.3
04 13:56 NW 11 16.09 Fair CLR 1.1 -11.7 38% -2 76.71 1024.9
04 12:56 Vrbl 11 16.09 Fair CLR 1.7 -10 2.8 -2.2 42% -1 76.76 1025.2
04 11:56 Vrbl 7 16.09 Fair CLR 1.7 -9.4 44% -0 76.84 1026.5
04 10:56 Vrbl 11 16.09 Fair CLR 0.6 -9.4 48% -2 76.86 1026.9
04 09:56 Vrbl 7 16.09 Fair CLR -0.6 -8.3 56% -3 76.86 1026.8
04 08:56 Vrbl 7 16.09 Fair CLR -0.6 -7.8 59% -3 76.84 1026.5
04 07:56 Calm 14.48 Fair CLR -2.2 -5 81% 76.76 1025.6
04 06:56 Calm 16.09 Overcast FEW033 OVC046 -1.1 -5.6 -0.6 -1.1 72% 76.73 1025.2
04 05:56 Calm 16.09 Overcast SCT031 OVC048 -1.1 -4.4 79% 76.68 1024.5
04 04:56 Vrbl 6 16.09 Overcast OVC029 -1.1 -5 75% 76.66 1024.1
04 03:56 Calm 16.09 Overcast OVC033 -1.1 -5.6 72% 76.63 1023.7
04 02:56 Vrbl 6 16.09 Overcast OVC044 -1.1 -5.6 72% 76.61 1023.3
04 01:56 Vrbl 6 16.09 Overcast OVC044 -1.1 -5.6 72% 76.58 1023.1
04 00:56 NE 7 16.09 Overcast OVC048 -0.6 -5 0.6 -1.1 72% -3 76.58 1023.0
03 23:56 Vrbl 6 16.09 Overcast OVC050 -0.6 -5 72% 76.61 1023.2
03 22:56 Calm 16.09 Overcast OVC050 -1.1 -4.4 79% 76.61 1023.4
03 21:56 Calm 16.09 Overcast OVC050 -0.6 -5.6 69% 76.61 1023.3
03 20:56 Calm 16.09 Overcast OVC050 -1.1 -5 75% 76.58 1023.2
03 19:56 E 6 16.09 Fair CLR -0.6 -5 72% 76.56 1022.8
03 18:56 Calm 16.09 Fair CLR 0 -4.4 4.4 0 73% 76.58 1022.8 0.05
03 17:56 Calm 16.09 A Few Clouds FEW100 1.7 -5.6 59% 76.58 1023.1
03 16:56 SE 7 16.09 Fair CLR 3.3 -6.1 51% 2 76.58 1023.0
03 15:56 Calm 16.09 Fair CLR 3.9 -6.1 48% 76.58 1022.9 0.05
03 14:56 SW 7 16.09 Fair CLR 3.3 -6.1 51% 2 76.58 1023.0
03 13:56 Vrbl 9 16.09 Fair CLR 2.8 -6.7 50% 1 76.58 1023.0 0.05
03 12:56 Vrbl 6 16.09 Fair CLR 2.8 -6.7 2.8 -4.4 50% 76.61 1023.6 0.2 0.61
03 11:56 W 9 16.09 Partly Cloudy SCT049 2.2 -7.2 50% -0 76.71 1024.8 0.25
03 10:56 NW 13 16.09 Overcast OVC049 1.1 -7.2 54% -2 76.76 1025.5 0.1
03 09:56 W 11 16.09 Overcast OVC049 1.1 -5.6 61% -2 76.78 1025.7 0.03 0.05
03 08:56 Calm 16.09 Overcast OVC049 -1.7 -7.2 66% 76.76 1025.5 0.03
03 07:56 Calm 16.09 Overcast BKN045 OVC050 -3.9 -9.4 66% 76.71 1025.1
03 06:56 Calm 16.09 Overcast OVC050 -3.9 -9.4 -3.3 -5 66% 76.66 1024.5
03 05:56 Calm 16.09 Overcast OVC046 -3.9 -10 63% 76.66 1024.2
03 04:56 Calm 16.09 Overcast OVC050 -4.4 -10.6 62% 76.66 1024.0
03 03:56 Calm 16.09 Overcast OVC055 -4.4 -10.6 62% 76.63 1023.9
03 02:56 SE 6 16.09 Overcast OVC048 -3.9 -10.6 60% 76.63 1023.6
03 01:56 Calm 16.09 Overcast OVC048 -4.4 -11.1 60% 76.63 1023.7
03 00:56 Calm 16.09 Overcast OVC050 -5 -10.6 -5 -7.8 65% 76.63 1023.7
02 23:56 Calm 16.09 Overcast OVC050 -5 -12.2 57% 76.63 1023.8
02 22:56 Calm 16.09 Overcast OVC060 -5 -12.2 57% 76.63 1023.9
02 21:56 Calm 16.09 Overcast BKN075 OVC110 -6.7 -13.9 57% 76.63 1024.1
02 20:56 Calm 16.09 Overcast OVC120 -7.2 -13.9 59% 76.61 1023.7
02 19:56 Calm 16.09 Fair CLR -7.2 -16.1 49% 76.61 1023.5
02 18:56 Calm 16.09 Fair CLR -6.1 -15.6 0 -6.1 47% 76.61 1023.7
02 17:56 Calm 16.09 Fair CLR -3.3 -14.4 42% 76.61 1023.6
Date Time (est) 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)