National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Chester 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.
07 15:15 NW 30 G 39 10.00 Fair and Windy CLR 11.1 -11.7 34% -10 29.88 0.0
07 14:55 NW 32 G 40 9.00 Fair and Windy CLR 10.8 -11.6 35% -11 29.88 0.0
07 14:35 NW 26 G 39 9.00 Fair and Windy CLR 10.8 -11.2 36% -9 29.88 0.0
07 14:15 NW 24 G 32 9.00 Fair and Breezy CLR 10.6 -10.5 37% -9 29.87 0.0
07 13:55 NW 22 G 36 9.00 Fair and Breezy CLR 10.4 -10.8 37% -8 29.87 0.0
07 13:35 NW 26 G 37 9.00 Fair and Windy CLR 10 -11.6 36% -10 29.86 0.0
07 13:15 NW 26 G 37 9.00 Fair and Windy CLR 9.9 -11.2 37% -10 29.85 0.0
07 12:55 N 28 G 43 9.00 Fair and Windy CLR 9.7 -10.7 18.1 8.6 39% -11 29.84 0.0
07 12:35 NW 35 G 45 9.00 A Few Clouds and Windy FEW046 9.3 -10.8 39% -13 29.84 0.0
07 12:15 NW 22 G 31 9.00 A Few Clouds and Breezy FEW045 9.3 -10.5 40% -9 29.85 0.0
07 11:55 NW 28 G 41 10.00 Fair and Windy CLR 9 -12.6 36% -12 29.86 0.0
07 11:35 NW 29 G 39 9.00 Fair and Windy CLR 9.3 -11.7 37% -12 29.86 0.0
07 11:15 NW 25 G 47 8.00 Fair and Breezy CLR 9 -11.9 37% -11 29.86 0.0
07 10:55 NW 32 G 43 8.00 Fair and Windy CLR 8.8 -11.7 38% -13 29.85 0.0
07 10:35 NW 29 G 43 8.00 Fair and Windy CLR 9 -11 39% -12 29.85 0.0
07 10:15 NW 22 G 37 8.00 A Few Clouds and Breezy FEW044 9.5 -10.1 40% -9 29.85 0.0
07 09:55 NW 23 G 31 8.00 A Few Clouds and Breezy FEW037 10 -9.9 39% -9 29.83 0.0
07 09:35 NW 30 G 39 8.00 Mostly Cloudy and Windy BKN038 9.7 -9.2 41% -11 29.83 0.0
07 09:15 NW 28 G 37 7.00 Mostly Cloudy and Windy FEW028 BKN036 10 -2.9 55% -10 29.81 0.0
07 08:55 NW 22 G 30 9.00 Mostly Cloudy and Breezy FEW024 BKN039 11.8 -4.9 47% -6 29.8 0.0
07 08:35 NW 21 G 28 5.00 Blowing Snow and Breezy FEW024 BKN035 BKN043 11.8 0.9 61% -6 29.8 0.0
07 08:15 NW 25 G 39 8.00 Partly Cloudy and Breezy FEW029 SCT039 13.8 -1.1 51% -5 29.78 0.0
07 07:55 NW 29 G 40 7.00 Mostly Cloudy and Windy FEW029 BKN039 BKN048 15.1 3.6 60% -4 29.74 0.0
07 07:35 NW 23 G 38 7.00 Overcast and Breezy SCT035 BKN047 OVC055 16 5 62% -1 29.73 0.0
07 07:15 NW 29 G 39 6.00 Blowing Snow Haze and Windy SCT035 BKN045 OVC049 17.6 5 58% -1 29.71 0.0
07 06:55 NW 29 G 36 7.00 Overcast and Windy BKN047 OVC060 18.5 6.1 26.4 18.5 58% 1 29.69 0.0
07 06:35 NW 25 G 35 8.00 Overcast and Breezy BKN043 OVC060 18.9 6.4 58% 2 29.68 0.0
07 06:15 NW 25 G 32 9.00 Mostly Cloudy and Breezy BKN044 BKN055 19.9 6.6 56% 3 29.66 0.0
07 05:55 NW 29 G 33 9.00 A Few Clouds and Windy FEW041 20.3 9.1 62% 3 29.65 0.0
07 05:35 NW 24 G 35 10.00 Partly Cloudy and Breezy SCT040 SCT055 21.2 10.8 64% 5 29.64 0.0
07 05:15 NW 24 G 39 5.00 Blowing Snow and Breezy FEW022 SCT030 BKN044 BKN055 22.3 12.9 67% 7 29.62 0.0
07 04:55 NW 24 G 32 7.00 Blowing Snow and Breezy SCT024 SCT031 OVC050 23.4 17.2 77% 8 29.61 0.0
07 04:35 NW 23 G 31 4.00 Blowing Snow and Breezy SCT023 OVC032 23.9 18.5 80% 9 29.6 0.0
07 04:15 NW 20 10.00 Overcast BKN032 BKN040 OVC060 26.4 18.3 71% 14 29.59 0.0
07 03:55 W 16 G 23 4.00 Light Snow Fog/Mist FEW030 BKN036 BKN043 OVC050 25.7 22.1 86% 14 29.58 0.0
07 03:35 NW 18 4.00 Light Snow FEW017 BKN028 OVC039 26.4 21 80% 14 29.58 0.0
07 03:15 NW 12 10.00 Overcast FEW019 BKN037 BKN044 BKN080 OVC100 26.1 20.7 80% 16 29.57 0.0
07 02:55 NW 14 10.00 Overcast OVC080 25.9 21.2 82% 15 29.57 0.0
07 02:35 NW 13 10.00 Overcast FEW034 OVC075 25.9 21.6 84% 16 29.58 0.0
07 02:15 NW 14 10.00 Overcast OVC070 25.9 21.7 84% 15 29.58 0.0
07 01:55 NW 15 10.00 Overcast SCT050 OVC060 25.5 22.1 87% 14 29.58 0.0
07 01:35 W 13 10.00 Overcast BKN046 OVC060 25.2 22.5 89% 15 29.58 0.0
07 01:15 W 12 10.00 Overcast BKN044 OVC055 25 22.5 90% 15 29.58 0.0
07 00:55 W 12 10.00 Overcast OVC050 24.8 22.6 24.8 23 91% 15 29.58 0.0
07 00:35 W 12 10.00 Overcast FEW041 OVC055 24.6 22.6 92% 15 29.59 0.0
07 00:15 W 10 7.00 Overcast SCT040 OVC065 24.4 22.6 93% 15 29.59 0.0
06 23:55 W 6 6.00 Fog/Mist SCT039 BKN048 OVC065 23.9 22.1 93% 18 29.59 0.0
06 23:35 W 7 6.00 Fog/Mist BKN044 OVC049 23.7 22.3 94% 16 29.59 0.0
06 23:15 W 7 6.00 Light Snow Fog/Mist FEW011 SCT028 SCT038 BKN050 OVC070 23.7 22.1 94% 16 29.6 0.0
06 22:55 W 7 6.00 Light Snow Fog/Mist BKN010 BKN033 OVC065 23.5 22.1 94% 16 29.59 0.0
06 22:35 W 6 6.00 Fog/Mist BKN010 BKN028 OVC044 23.5 22.1 94% 17 29.59 0.0
06 22:15 W 5 6.00 Fog/Mist FEW028 SCT044 BKN050 OVC090 23.4 22.1 95% 18 29.6 0.0
06 21:55 Calm 7.00 Overcast FEW022 OVC085 23 22.3 97% 29.6 0.0
06 21:35 Calm 7.00 Overcast FEW011 SCT048 SCT055 OVC085 23.2 22.8 99% 29.6 0.0
06 21:15 Vrbl 3 10.00 Overcast SCT012 BKN030 BKN047 OVC055 23.2 23 99% 29.6 0.0
06 20:55 Calm 7.00 Light Snow FEW021 BKN049 BKN055 OVC070 23.4 22.8 98% 29.61 0.0
06 20:35 Calm 6.00 Light Snow Fog/Mist SCT007 SCT022 BKN055 OVC070 23.5 22.8 97% 29.62 0.0
06 20:15 Calm 6.00 Light Snow Fog/Mist BKN007 BKN027 OVC060 23.5 22.8 97% 29.62 0.0
06 19:55 W 3 7.00 Light Snow BKN008 OVC070 23.2 22.5 97% 29.62 0.0
06 19:35 W 3 7.00 Overcast FEW009 SCT050 BKN065 OVC075 23.7 22.6 96% 29.63 0.0
06 19:15 Calm 5.00 Light Snow Fog/Mist FEW009 SCT016 BKN038 BKN049 OVC060 23.7 22.6 96% 29.63 0.0
06 18:55 Calm 5.00 Light Snow Fog/Mist FEW028 OVC060 23.7 21.9 28 23.4 93% 29.62 0.0
06 18:35 Calm 6.00 Fog/Mist FEW028 BKN060 OVC075 23.7 21.9 93% 29.62 0.0
06 18:15 Calm 4.00 Light Snow Fog/Mist SCT060 OVC075 23.7 21.7 92% 29.62 0.0
06 17:55 W 3 6.00 Fog/Mist SCT060 BKN080 OVC090 23.9 21.4 90% 29.62 0.0
06 17:15 Calm 4.00 Light Snow Fog/Mist FEW030 SCT045 SCT055 OVC075 24.3 21.2 88% 29.61 0.0
06 16:55 Calm 3.00 Light Snow Fog/Mist OVC042 24.4 21.4 88% 29.61 0.0
06 16:35 Calm 1.75 Light Snow Fog/Mist FEW033 OVC041 24.6 21.4 87% 29.61 0.0
06 16:15 Calm 10.00 Overcast FEW024 BKN031 BKN042 OVC050 25.9 19.8 78% 29.61 0.0
06 15:55 NW 3 2.00 Light Snow BKN029 BKN046 OVC055 26.1 18.1 72% 29.61 0.0
06 15:35 NW 3 4.00 Light Snow BKN045 OVC060 26.8 16.5 65% 29.61 0.0
06 15:15 N 3 10.00 Light Snow FEW039 BKN055 OVC070 27.1 15.1 60% 29.61 0.0
06 14:55 W 3 8.00 Unknown Precip FEW029 BKN040 OVC048 27 13.8 58% 29.62 0.0
06 14:35 NW 5 10.00 Overcast SCT039 BKN047 OVC065 27.7 12 52% 23 29.62 0.0
06 14:15 N 5 10.00 Overcast BKN046 OVC065 27.9 9.7 46% 23 29.62 0.0
06 13:55 W 3 10.00 Overcast BKN049 OVC065 27.1 11.3 51% 29.64 0.0
06 11:35 W 5 10.00 Overcast SCT075 OVC100 26.1 11.8 55% 21 29.69 0.0
06 11:15 NW 3 10.00 Overcast SCT080 OVC100 26.8 9.7 48% 29.7 0.0
06 10:55 Calm 10.00 Overcast OVC110 24.8 10.2 54% 29.71 0.0
06 10:35 Calm 10.00 Overcast OVC100 26.4 9.9 49% 29.72 0.0
06 10:15 N 3 10.00 Overcast OVC100 24.8 9.7 52% 29.72 0.0
06 09:55 N 3 10.00 Overcast OVC110 23.9 9.5 54% 29.72 0.0
06 09:35 N 3 10.00 Overcast OVC110 22.8 9.5 56% 29.72 0.0
06 09:15 N 3 9.00 Overcast OVC110 20.8 9.7 62% 29.72 0.0
06 08:55 Calm 7.00 Overcast OVC110 19.9 9.1 63% 29.72 0.0
06 08:35 Calm 7.00 Overcast SCT100 OVC110 19.6 9 63% 29.73 0.0
06 08:15 Calm 7.00 Overcast OVC110 18.1 9.1 68% 29.74 0.0
06 07:55 Calm 7.00 Overcast OVC110 17.4 7.9 66% 29.75 0.0
06 07:35 N 3 7.00 Overcast OVC110 16.7 8.1 69% 29.76 0.0
06 07:15 NW 5 7.00 Overcast OVC120 15.4 8.1 72% 9 29.77 0.0
06 06:55 NW 5 8.00 A Few Clouds FEW120 12 5.7 19.4 12 76% 5 29.78 0.0
06 06:35 NW 6 9.00 Fair CLR 13.8 6.3 72% 6 29.79 0.0
06 06:15 NW 5 10.00 Partly Cloudy SCT150 15.1 6.8 70% 9 29.79 0.0
06 05:55 NW 6 10.00 Partly Cloudy FEW160 SCT220 15.6 6.8 68% 8 29.79 0.0
06 05:35 N 3 10.00 Partly Cloudy FEW130 SCT220 17.8 7.7 64% 29.79 0.0
06 05:15 N 5 10.00 Mostly Cloudy SCT120 SCT150 BKN200 18.9 8.2 63% 13 29.79 0.0
06 04:55 N 5 10.00 Overcast OVC120 19 8.4 63% 13 29.81 0.0
06 04:35 N 5 10.00 Mostly Cloudy BKN120 BKN140 18.3 7.9 64% 12 29.81 0.0
06 04:15 N 3 10.00 Mostly Cloudy FEW120 BKN140 18.9 8.4 64% 29.81 0.0
06 03:55 N 5 10.00 Partly Cloudy FEW140 SCT270 18.3 8.2 65% 12 29.81 0.0
06 03:35 N 3 10.00 Mostly Cloudy BKN120 BKN270 18.9 8.2 63% 29.81 0.0
06 03:15 N 6 10.00 Mostly Cloudy BKN130 18.1 8.2 65% 11 29.82 0.0
06 02:55 NW 5 10.00 Partly Cloudy SCT160 17.6 8.2 67% 11 29.83 0.0
06 02:35 NW 5 10.00 Fair CLR 18.5 8.2 64% 12 29.84 0.0
06 02:15 NW 6 10.00 Fair CLR 15.8 7.2 69% 8 29.85 0.0
06 01:55 NW 5 9.00 A Few Clouds FEW160 18 7.9 65% 12 29.86 0.0
06 01:35 NW 5 9.00 Partly Cloudy SCT160 17.1 8.1 68% 11 29.86 0.0
06 01:15 NW 6 9.00 A Few Clouds FEW190 15.6 7.9 71% 8 29.87 0.0
06 00:55 W 7 9.00 Fair CLR 15.8 7.7 21.6 15.3 70% 7 29.87 0.0
06 00:35 W 5 10.00 Fair CLR 17.6 8.2 67% 11 29.87 0.0
06 00:15 NW 3 10.00 Fair CLR 20.3 8.2 59% 29.88 0.0
05 23:55 NW 3 10.00 Fair CLR 18.3 7.3 62% 29.87 0.0
05 23:35 NW 6 10.00 Fair CLR 18.7 7.2 61% 11 29.87 0.0
05 23:15 NW 6 10.00 Fair CLR 21 8.4 58% 14 29.87 0.0
05 22:55 NW 6 10.00 A Few Clouds FEW190 20.8 8.8 59% 14 29.87 0.0
05 22:35 NW 6 10.00 Fair CLR 21 8.6 59% 14 29.87 0.0
05 22:15 NW 6 10.00 Fair CLR 20.1 8.6 61% 13 29.88 0.0
05 21:55 NW 6 10.00 Fair CLR 19.4 7.7 60% 12 29.88 0.0
05 21:35 NW 7 10.00 Fair CLR 21.2 9.5 60% 13 29.88 0.0
05 21:15 NW 6 10.00 Fair CLR 20.5 8.8 60% 14 29.89 0.0
05 20:55 NW 6 10.00 Fair CLR 19 8.8 64% 12 29.91 0.0
05 20:35 NW 3 10.00 Fair CLR 19.2 8.4 63% 29.92 0.0
05 20:15 NW 3 10.00 Fair CLR 19.6 9.5 65% 29.92 0.0
05 19:55 NW 3 10.00 Fair CLR 20.1 8.8 61% 29.93 0.0
05 19:35 NW 5 10.00 Fair CLR 19 8.6 64% 13 29.94 0.0
05 19:15 NW 6 10.00 Fair CLR 18.7 9 66% 11 29.94 0.0
05 18:55 W 6 10.00 Fair CLR 23 9.5 27.7 19.9 56% 17 29.95 0.0
05 18:35 W 5 10.00 Fair CLR 22.8 10 58% 17 29.95 0.0
05 18:15 NW 6 10.00 Fair CLR 22.6 10.2 59% 16 29.95 0.0
05 17:15 NW 7 10.00 Fair CLR 23.2 10.9 59% 16 29.96 0.0
05 16:55 NW 7 10.00 Fair CLR 25.3 11.3 55% 18 29.96 0.0
05 16:35 NW 7 10.00 Fair CLR 25.2 11.7 56% 18 29.96 0.0
05 16:15 W 7 10.00 Fair CLR 25.7 11.8 56% 19 29.96 0.0
05 15:55 NW 8 10.00 Fair CLR 26.4 11.7 54% 19 29.97 0.0
05 15:35 NW 8 10.00 Fair CLR 27 11.3 52% 19 29.97 0.0
05 14:55 W 7 9.00 Fair CLR 26.4 10.9 52% 20 29.97 0.0
05 14:35 W 6 10.00 Fair CLR 27 10.4 50% 21 29.97 0.0
05 14:15 NW 8 9.00 Fair CLR 26.6 10.9 52% 19 29.98 0.0
05 13:55 N 5 10.00 Fair CLR 27.1 10 48% 22 30 0.0
05 13:35 N 6 10.00 Fair CLR 27 9.3 47% 21 30 0.0
05 12:55 N 8 10.00 Fair CLR 26.1 8.1 26.1 15.4 46% 18 30.03 0.0
05 12:35 NW 7 10.00 Fair CLR 25.3 7.9 47% 18 30.04 0.0
05 12:15 NW 9 10.00 Fair CLR 25.5 7.9 47% 17 30.05 0.0
05 11:55 NW 8 10.00 Fair CLR 24.4 7.7 49% 16 30.07 0.0
05 11:35 N 7 10.00 Fair CLR 24.4 7.9 49% 17 30.08 0.0
05 11:15 N 8 10.00 Fair CLR 23.7 8.4 52% 16 30.09 0.0
05 10:55 N 7 10.00 Fair CLR 23.2 8.2 53% 16 30.1 0.0
05 10:35 N 8 10.00 Fair CLR 22.6 8.2 54% 14 30.11 0.0
05 10:15 N 6 10.00 Fair CLR 21.9 8.2 55% 15 30.11 0.0
05 09:55 N 10 9.00 Fair CLR 20.7 7.9 58% 10 30.11 0.0
05 09:35 N 9 10.00 Fair CLR 20.3 7.3 57% 11 30.11 0.0
05 09:15 N 9 9.00 Fair CLR 19.6 6.8 57% 10 30.12 0.0
05 08:55 N 8 10.00 Fair CLR 18.7 5.5 56% 9 30.12 0.0
05 08:35 N 7 10.00 Fair CLR 18.1 5.2 57% 10 30.12 0.0
05 08:15 N 5 10.00 Fair CLR 18.3 5.2 56% 12 30.12 0.0
05 07:55 N 3 10.00 Fair CLR 17.2 4.8 58% 30.11 0.0
05 07:35 N 6 9.00 Fair CLR 16.5 5 60% 9 30.12 0.0
05 07:15 N 6 9.00 Fair CLR 15.8 4.6 61% 8 30.11 0.0
05 06:55 N 6 10.00 Fair CLR 15.8 3.7 20.1 14.9 59% 8 30.11 0.0
05 06:35 N 5 10.00 Fair CLR 16 3.7 58% 10 30.11 0.0
05 06:15 N 3 10.00 Fair CLR 15.1 3 59% 30.11 0.0
05 05:55 N 6 10.00 Fair CLR 15.4 3.4 59% 8 30.1 0.0
05 05:35 N 5 10.00 Fair CLR 15.6 3.2 58% 9 30.11 0.0
05 05:15 N 6 10.00 Fair CLR 15.6 3.4 58% 8 30.11 0.0
05 04:55 N 5 10.00 Fair CLR 18 3.7 53% 12 30.11 0.0
05 04:35 N 3 10.00 Fair CLR 18 3.7 53% 30.11 0.0
05 04:15 N 5 10.00 Fair CLR 18.9 4.1 52% 13 30.11 0.0
05 03:55 N 6 10.00 Fair CLR 19 4.3 52% 12 30.11 0.0
05 03:35 N 5 10.00 Fair CLR 19 4.3 52% 13 30.12 0.0
05 03:15 N 6 10.00 Fair CLR 18.9 4.5 53% 12 30.12 0.0
05 02:55 N 6 10.00 Fair CLR 19.6 5.5 54% 12 30.12 0.0
05 02:35 N 5 10.00 Fair CLR 19.8 6.1 55% 14 30.13 0.0
05 02:15 N 5 10.00 Fair CLR 19.8 6.8 57% 14 30.13 0.0
05 01:55 N 5 10.00 Fair CLR 18.3 6.1 59% 12 30.14 0.0
05 01:35 NW 3 10.00 Fair CLR 19.4 6.1 56% 30.14 0.0
05 01:15 N 5 10.00 Fair CLR 19.9 6.6 56% 14 30.14 0.0
05 00:55 NW 5 10.00 Fair CLR 20.3 6.8 26.6 20.3 56% 15 30.15 0.0
05 00:35 N 6 10.00 Fair CLR 22.6 7.3 52% 16 30.16 0.0
05 00:15 NW 5 10.00 Fair CLR 22.6 7.5 52% 17 30.16 0.0
04 23:55 N 6 10.00 Fair CLR 22.8 7.3 51% 16 30.17 0.0
04 23:35 N 6 10.00 Fair CLR 23 7.7 52% 17 30.17 0.0
04 23:15 N 7 10.00 Fair CLR 23.2 7.9 52% 16 30.18 0.0
04 22:55 N 8 10.00 Fair CLR 23.4 7.9 51% 15 30.18 0.0
04 22:35 N 7 10.00 Fair CLR 23.9 7.9 50% 17 30.18 0.0
04 22:15 N 8 10.00 Fair CLR 23.9 8.1 51% 16 30.18 0.0
04 21:55 N 6 10.00 Partly Cloudy SCT200 24.3 8.2 50% 18 30.18 0.0
04 21:35 N 7 10.00 Partly Cloudy SCT200 24.8 8.4 50% 18 30.18 0.0
04 21:15 NW 7 10.00 Partly Cloudy SCT200 24.8 8.8 50% 18 30.18 0.0
04 20:55 NW 6 10.00 Partly Cloudy SCT200 22.3 9.1 57% 16 30.19 0.0
04 20:35 NW 6 10.00 Partly Cloudy SCT200 22.6 9 56% 16 30.19 0.0
04 20:15 NW 6 10.00 A Few Clouds FEW190 23.5 9.3 54% 17 30.19 0.0
04 19:55 NW 6 10.00 Fair CLR 26.1 9.3 49% 20 30.19 0.0
04 19:35 NW 7 10.00 Fair CLR 25.7 9.5 50% 19 30.19 0.0
04 19:15 NW 6 10.00 Fair CLR 26.6 9.5 48% 21 30.19 0.0
04 18:55 NW 7 10.00 A Few Clouds FEW200 26.8 10 31.3 25.7 49% 20 30.19 0.0
04 18:35 NW 7 10.00 Partly Cloudy SCT200 27 10.4 50% 20 30.18 0.0
04 18:15 NW 6 10.00 A Few Clouds FEW200 27 10.9 51% 21 30.18 0.0
04 17:55 NW 7 10.00 A Few Clouds FEW200 27.1 11.1 51% 20 30.19 0.0
04 17:35 NW 8 9.00 A Few Clouds FEW200 27.7 11.5 50% 20 30.18 0.0
04 16:55 NW 9 10.00 A Few Clouds FEW280 29.1 10.8 46% 21 30.18 0.0
04 16:35 NW 7 10.00 A Few Clouds FEW230 29.3 11.3 47% 23 30.18 0.0
04 16:15 N 7 10.00 Fair CLR 31.3 8.1 37% 25 30.18 0.0
04 15:55 N 8 10.00 A Few Clouds FEW240 31.3 9.5 40% 25 30.17 0.0
04 15:35 N 7 10.00 Partly Cloudy SCT250 31.3 10.2 41% 25 30.17 0.0
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)