National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Chester, Chester 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.
06 21:35 Calm 10.00 Overcast OVC006 35.6 33.8 93% 30.41 0.0
06 21:15 Calm 10.00 Overcast OVC005 35.6 35.6 100% 30.41 0.0
06 20:55 Calm 10.00 Overcast OVC004 35.6 35.6 100% 30.4 0.0
06 20:35 NE 8 6.00 Fog/Mist OVC004 33.8 33.8 100% 28 30.4 0.0
06 20:15 Calm 4.00 Fog/Mist OVC005 35.6 33.8 93% 30.43 0.0
06 19:55 Calm 5.00 Fog/Mist OVC008 35.6 33.8 93% 30.43 0.0
06 19:35 Calm 7.00 Overcast OVC008 35.6 33.8 93% 30.43 0.0
06 19:15 Calm 10.00 Overcast OVC010 35.6 33.8 93% 30.43 0.0
06 18:55 Calm 10.00 Overcast OVC010 35.6 33.8 93% 30.43 0.0
06 18:35 Calm 10.00 Overcast OVC011 35.6 33.8 93% 30.43 0.0
06 18:15 Calm 10.00 Overcast OVC011 35.6 33.8 93% 30.42 0.0
06 17:55 Calm 10.00 Overcast OVC012 35.6 32 87% 30.41 0.0
06 17:35 NE 8 G 14 10.00 Overcast OVC013 35.6 32 87% 30 30.41 0.0
06 17:15 N 8 10.00 Overcast OVC014 37.4 32 81% 32 30.4 0.0
06 16:55 Vrbl 7 10.00 Overcast BKN015 OVC050 37.4 32 81% 33 30.4 0.0
06 16:35 NE 8 10.00 Overcast OVC016 37.4 32 81% 32 30.39 0.0
06 16:15 N 9 10.00 Overcast OVC015 37.4 32 81% 31 30.4 0.0
06 15:55 Vrbl 7 G 13 10.00 Overcast BKN015 OVC021 37.4 32 81% 33 30.39 0.0
06 15:35 N 8 10.00 Overcast OVC014 37.4 32 81% 32 30.38 0.0
06 15:15 Vrbl 7 G 14 10.00 Overcast OVC013 39.2 32 75% 35 30.39 0.0
06 14:55 Vrbl 7 G 15 10.00 Overcast OVC013 39.2 32 75% 35 30.38 0.0
06 14:35 N 9 10.00 Overcast OVC013 37.4 32 81% 31 30.38 0.0
06 14:15 Vrbl 7 10.00 Overcast OVC013 39.2 32 75% 35 30.38 0.0
06 13:55 N 10 10.00 Overcast OVC013 37.4 32 81% 31 30.38 0.0
06 13:35 Vrbl 5 G 13 10.00 Overcast OVC013 37.4 32 81% 34 30.38 0.0
06 13:15 N 8 G 15 10.00 Overcast OVC013 39.2 33.8 81% 34 30.37 0.0
06 12:55 NE 9 G 16 10.00 Overcast OVC013 37.4 33.8 87% 31 30.36 0.0
06 12:35 N 8 G 15 10.00 Overcast OVC012 37.4 33.8 87% 32 30.37 0.0
06 12:15 N 10 G 17 10.00 Overcast OVC011 37.4 33.8 87% 31 30.38 0.0
06 11:55 N 9 10.00 Overcast OVC010 37.4 33.8 87% 31 30.37 0.0
06 11:35 N 9 G 17 10.00 Overcast OVC010 37.4 33.8 87% 31 30.37 0.0
06 11:15 N 12 G 17 10.00 Overcast OVC009 37.4 33.8 87% 30 30.36 0.0
06 10:55 NE 8 G 15 10.00 Overcast OVC007 37.4 33.8 87% 32 30.36 0.0
06 10:35 N 10 9.00 Overcast OVC006 35.6 35.6 100% 29 30.36 0.0
06 10:15 Vrbl 7 G 15 6.00 Fog/Mist OVC006 35.6 35.6 100% 31 30.34 0.0
06 09:55 N 12 G 18 4.00 Fog/Mist OVC006 35.6 35.6 100% 28 30.34 0.0
06 09:35 NE 9 G 17 4.00 Fog/Mist BKN006 OVC009 37.4 37.4 100% 31 30.34 0.0
06 09:15 N 10 2.00 Fog/Mist BKN006 OVC044 37.4 37.4 100% 31 30.33 0.0
06 08:55 Vrbl 7 3.00 Fog/Mist OVC007 37.4 37.4 100% 33 30.33 0.0
06 08:35 N 8 10.00 Overcast BKN007 OVC011 37.4 37.4 100% 32 30.32 0.0
06 08:15 NE 9 G 15 9.00 Overcast OVC007 35.6 35.6 100% 29 30.32 0.0
06 07:55 Vrbl 7 G 15 3.00 Fog/Mist BKN006 OVC010 35.6 35.6 100% 31 30.31 0.0
06 07:35 N 9 G 15 1.50 Light Unknown Precip OVC006 35.6 35.6 100% 29 30.3 0.0
06 07:15 N 8 G 15 2.00 Fog/Mist BKN006 OVC011 35.6 35.6 100% 30 30.3 0.0
06 06:55 N 9 G 15 2.00 Fog/Mist BKN007 OVC011 35.6 35.6 100% 29 30.29 0.0
06 06:35 N 10 1.25 Light Rain FEW001 BKN005 OVC010 35.6 35.6 100% 29 30.28 0.0
06 06:15 N 9 G 15 2.00 Light Rain BKN006 OVC009 35.6 35.6 100% 29 30.29 0.0
06 05:55 Vrbl 7 G 16 2.50 Light Rain BKN006 OVC009 35.6 35.6 100% 31 30.28 0.0
06 05:35 N 9 2.50 Light Rain BKN006 BKN010 OVC014 35.6 35.6 100% 29 30.29 0.0
06 05:15 N 9 G 15 3.00 Light Rain BKN005 BKN010 OVC014 35.6 35.6 100% 29 30.28 0.0
06 04:55 N 10 G 17 2.50 Light Rain BKN005 BKN009 OVC014 35.6 35.6 100% 29 30.28 0.0
06 04:35 N 8 G 14 2.00 Light Rain BKN003 OVC010 35.6 35.6 100% 30 30.28 0.0
06 04:15 N 9 2.50 Light Rain FEW001 OVC008 35.6 35.6 100% 29 30.27 0.0
06 03:55 N 8 2.50 Rain OVC008 37.4 37.4 100% 32 30.26 0.0
06 03:35 N 12 10.00 Overcast OVC009 37.4 37.4 100% 30 30.25 0.0
06 03:15 NE 8 10.00 Overcast OVC009 37.4 37.4 100% 32 30.24 0.0
06 02:55 N 6 G 14 10.00 Overcast OVC008 37.4 37.4 100% 33 30.24 0.0
06 02:35 NE 9 10.00 Overcast BKN009 OVC013 37.4 37.4 100% 31 30.24 0.0
06 02:15 NE 9 7.00 Light Rain FEW001 SCT007 BKN010 37.4 37.4 100% 31 30.23 0.0
06 01:55 NE 9 3.00 Rain FEW001 BKN006 OVC010 37.4 37.4 100% 31 30.27 0.0
06 01:35 NE 8 G 15 5.00 Light Rain BKN005 OVC009 35.6 35.6 100% 30 30.26 0.0
06 01:15 Vrbl 7 4.00 Rain OVC005 35.6 35.6 100% 31 30.27 0.0
06 00:55 NE 8 4.00 Rain SCT003 BKN006 OVC009 35.6 35.6 100% 30 30.28 0.0
06 00:35 N 6 4.00 Rain FEW001 SCT006 OVC009 35.6 35.6 100% 31 30.3 0.0
06 00:15 Vrbl 6 4.00 Light Rain NULL 35.6 35.6 100% 31 30.3 0.0
05 23:55 Vrbl 3 G 13 2.50 Heavy Rain BKN002 OVC006 35.6 35.6 100% 30.32 0.0
05 23:35 NE 8 2.50 Rain BKN004 OVC008 35.6 35.6 100% 30 30.28 0.0
05 23:15 NE 8 5.00 Light Rain OVC007 35.6 35.6 100% 30 30.27 0.0
05 22:55 E 9 4.00 Rain OVC008 35.6 35.6 100% 29 30.27 0.0
05 22:35 NE 9 5.00 Light Rain BKN007 OVC010 35.6 35.6 100% 29 30.29 0.0
05 22:15 NE 12 6.00 Light Rain OVC007 35.6 35.6 100% 28 30.28 0.0
05 21:55 NE 9 G 16 4.00 Rain OVC007 35.6 35.6 100% 29 30.29 0.0
05 21:35 Vrbl 7 G 15 5.00 Light Rain BKN006 OVC010 35.6 35.6 100% 31 30.3 0.0
05 21:15 NE 12 G 17 4.00 Light Rain BKN006 OVC010 37.4 37.4 100% 30 30.29 0.0
05 20:55 NE 8 G 14 6.00 Light Rain OVC006 37.4 37.4 100% 32 30.3 0.0
05 20:35 NE 8 6.00 Light Rain OVC006 37.4 37.4 100% 32 30.28 0.0
05 20:15 NE 8 G 17 5.00 Light Rain SCT003 BKN007 OVC011 37.4 37.4 100% 32 30.28 0.0
05 19:55 Vrbl 7 2.50 Rain FEW001 BKN006 OVC010 37.4 37.4 100% 33 30.29 0.0
05 19:35 Vrbl 7 5.00 Light Rain OVC006 39.2 39.2 100% 35 30.31 0.0
05 19:15 NE 9 6.00 Light Rain BKN007 OVC011 39.2 39.2 100% 34 30.26 0.0
05 18:55 NE 12 G 17 9.00 Light Unknown Precip SCT007 OVC021 39.2 39.2 100% 33 30.26 0.0
05 18:35 NE 8 G 15 10.00 Overcast FEW009 FEW013 OVC021 39.2 39.2 100% 34 30.26 0.0
05 18:15 NE 10 10.00 Overcast FEW009 FEW013 OVC021 39.2 39.2 100% 33 30.27 0.0
05 17:55 Vrbl 7 9.00 Overcast FEW014 OVC021 41 41 100% 37 30.27 0.0
05 17:35 NE 9 7.00 Light Unknown Precip FEW006 SCT012 OVC019 41 41 100% 36 30.26 0.0
05 17:15 Vrbl 6 G 12 6.00 Light Unknown Precip BKN013 OVC019 41 41 100% 38 30.27 0.0
05 16:55 NE 8 3.00 Fog/Mist FEW003 BKN009 OVC020 42.8 42.8 100% 39 30.25 0.0
05 16:35 Calm 1.50 Fog/Mist SCT002 SCT009 OVC016 42.8 42.8 100% 30.27 0.0
05 16:15 Calm 4.00 Fog/Mist FEW015 SCT019 OVC026 42.8 42.8 100% 30.27 0.0
05 15:55 Calm 5.00 Fog/Mist OVC026 42.8 42.8 100% 30.27 0.0
05 15:35 Calm 7.00 Overcast OVC025 42.8 42.8 100% 30.26 0.0
05 15:15 Calm 5.00 Fog/Mist OVC023 42.8 42.8 100% 30.26 0.0
05 14:55 Calm 6.00 Fog/Mist OVC022 42.8 42.8 100% 30.25 0.0
05 14:35 Vrbl 6 3.00 Light Rain FEW003 BKN021 OVC027 42.8 42.8 100% 40 30.24 0.0
05 14:15 NE 5 2.00 Light Rain BKN020 OVC026 42.8 42.8 100% 41 30.24 0.0
05 13:55 Vrbl 5 3.00 Fog/Mist SCT002 SCT013 OVC027 42.8 42.8 100% 41 30.24 0.0
05 13:35 Calm 2.50 Fog/Mist SCT002 BKN015 OVC027 42.8 42.8 100% 30.24 0.0
05 13:15 Vrbl 3 2.50 Light Rain SCT002 SCT006 OVC027 42.8 42.8 100% 30.24 0.0
05 12:55 Calm 2.00 Light Rain SCT001 SCT006 OVC028 41 41 100% 30.26 0.0
05 12:35 Calm 2.00 Light Rain FEW001 OVC028 41 41 100% 30.26 0.0
05 12:15 Calm 3.00 Light Rain OVC031 41 41 100% 30.26 0.0
05 11:55 Calm 2.50 Light Rain FEW001 OVC031 41 41 100% 30.27 0.0
05 11:35 Calm 2.00 Light Rain FEW001 OVC031 39.2 39.2 100% 30.27 0.0
05 11:15 Calm 2.50 Light Rain FEW001 FEW023 OVC031 39.2 39.2 100% 30.27 0.0
05 10:55 Calm 3.00 Light Rain FEW001 FEW023 OVC032 39.2 39.2 100% 30.28 0.0
05 10:35 Vrbl 3 3.00 Light Rain NULL 37.4 37.4 100% 30.28 0.0
05 10:15 Calm 1.75 Light Rain SCT001 OVC030 37.4 37.4 100% 30.27 0.0
05 09:55 Calm 0.25 Rain BKN001 OVC016 39.2 39.2 100% 30.28 0.0
05 09:35 Calm 1.00 Rain BKN001 BKN016 OVC030 37.4 37.4 100% 30.28 0.0
05 09:15 Calm 1.25 Rain SCT001 OVC030 37.4 37.4 100% 30.26 0.0
05 08:55 Calm 2.00 Rain FEW001 FEW029 OVC035 37.4 37.4 100% 30.25 0.0
05 08:35 Calm 2.50 Light Rain BKN030 OVC035 39.2 39.2 100% 30.26 0.0
05 08:15 Calm 4.00 Light Unknown Precip OVC029 39.2 39.2 100% 30.25 0.0
05 07:55 Calm 2.00 Light Unknown Precip OVC030 37.4 37.4 100% 30.24 0.0
05 07:35 Calm 3.00 Fog/Mist BKN032 BKN080 37.4 37.4 100% 30.23 0.0
05 07:15 Calm 3.00 Fog/Mist BKN033 BKN080 35.6 35.6 100% 30.21 0.0
05 06:55 Calm 3.00 Fog/Mist BKN035 BKN055 OVC080 35.6 35.6 100% 30.22 0.0
05 06:35 Calm 3.00 Fog/Mist BKN038 OVC055 35.6 35.6 100% 30.2 0.0
05 06:15 Calm 5.00 Fog/Mist BKN039 OVC045 35.6 35.6 100% 30.21 0.0
05 05:55 Calm 4.00 Fog/Mist OVC045 35.6 35.6 100% 30.21 0.0
05 05:35 Calm 3.00 Fog/Mist BKN047 OVC080 33.8 33.8 100% 30.21 0.0
05 05:15 Calm 6.00 Fog/Mist OVC075 33.8 33.8 100% 30.21 0.0
05 04:55 Calm 4.00 Fog/Mist OVC070 33.8 33.8 100% 30.22 0.0
05 04:35 Calm 4.00 Fog/Mist BKN075 33.8 33.8 100% 30.21 0.0
05 04:15 Calm 4.00 Fog/Mist CLR 33.8 33.8 100% 30.21 0.0
05 03:55 Calm 3.00 Fog/Mist CLR 32 32 100% 30.21 0.0
05 03:35 Calm 9.00 Fair CLR 33.8 33.8 100% 30.22 0.0
05 03:15 Calm 9.00 Fair CLR 33.8 33.8 100% 30.22 0.0
05 02:55 Calm 9.00 Fair CLR 33.8 33.8 100% 30.21 0.0
05 02:35 Calm 4.00 Fog/Mist CLR 32 32 100% 30.21 0.0
05 02:15 Calm 8.00 Fair CLR 33.8 33.8 100% 30.21 0.0
05 01:55 Calm 8.00 Fair CLR 33.8 33.8 100% 30.22 0.0
05 01:35 Calm 8.00 Fair CLR 33.8 33.8 100% 30.22 0.0
05 01:15 Calm 5.00 Fog/Mist CLR 32 32 100% 30.22 0.0
05 00:55 Calm 9.00 Fair CLR 33.8 33.8 100% 30.22 0.0
05 00:35 Calm 10.00 Fair CLR 33.8 33.8 100% 30.22 0.0
05 00:15 Calm 10.00 Fair CLR 35.6 33.8 93% 30.22 0.0
04 23:55 Calm 10.00 Fair CLR 35.6 35.6 100% 30.23 0.0
04 23:35 Calm 10.00 Fair CLR 37.4 35.6 93% 30.22 0.0
04 23:15 Calm 10.00 Fair CLR 37.4 35.6 93% 30.23 0.0
04 22:55 Calm 10.00 Fair CLR 37.4 35.6 93% 30.24 0.0
04 22:35 Calm 10.00 Fair CLR 37.4 35.6 93% 30.25 0.0
04 22:15 Calm 10.00 Fair CLR 37.4 35.6 93% 30.24 0.0
04 21:55 Calm 10.00 Fair CLR 37.4 35.6 93% 30.25 0.0
04 21:35 Calm 10.00 Fair CLR 37.4 35.6 93% 30.24 0.0
04 21:15 Calm 10.00 Fair CLR 37.4 35.6 93% 30.25 0.0
04 20:55 Calm 10.00 Fair CLR 37.4 35.6 93% 30.25 0.0
04 20:35 Calm 10.00 Fair CLR 37.4 35.6 93% 30.25 0.0
04 20:15 Calm 10.00 Fair CLR 37.4 35.6 93% 30.25 0.0
04 19:55 Calm 10.00 Fair CLR 37.4 35.6 93% 30.24 0.0
04 19:35 Calm 10.00 Fair CLR 37.4 33.8 87% 30.24 0.0
04 19:15 Calm 10.00 Fair CLR 41 35.6 81% 30.24 0.0
04 18:55 Calm 10.00 Fair CLR 41 35.6 81% 30.25 0.0
04 18:35 Calm 10.00 Fair CLR 41 33.8 76% 30.24 0.0
04 18:15 Calm 10.00 Fair CLR 42.8 33.8 71% 30.24 0.0
04 17:35 Calm 10.00 Fair CLR 44.6 35.6 71% 30.24 0.0
04 17:15 Calm 10.00 Fair CLR 50 33.8 54% 30.22 0.0
04 16:55 Calm 10.00 Fair CLR 51.8 32 47% 30.22 0.0
04 16:35 Calm 10.00 Fair CLR 51.8 33.8 50% 30.21 0.0
04 16:15 SE 6 10.00 Fair CLR 51.8 33.8 50% 30.21 0.0
04 15:55 Calm 10.00 Fair CLR 51.8 33.8 50% 30.21 0.0
04 15:35 Calm 10.00 Fair CLR 51.8 35.6 54% 30.22 0.0
04 15:15 SE 3 10.00 Fair CLR 51.8 35.6 54% 30.22 0.0
04 14:55 Calm 10.00 Fair CLR 53.6 35.6 51% 30.22 0.0
04 14:35 Calm 10.00 Fair CLR 51.8 35.6 54% 30.21 0.0
04 14:15 S 6 10.00 Fair CLR 51.8 35.6 54% 30.22 0.0
04 13:55 Calm 10.00 Fair CLR 53.6 35.6 51% 30.22 0.0
04 13:35 Vrbl 3 10.00 Fair CLR 55.4 35.6 47% 30.22 0.0
04 13:15 Calm 10.00 Fair CLR 53.6 32 44% 30.22 0.0
04 12:55 Calm 10.00 Fair CLR 53.6 33.8 47% 30.23 0.0
04 12:35 Calm 10.00 Fair CLR 51.8 33.8 50% 30.24 0.0
04 12:15 Calm 10.00 Fair CLR 51.8 33.8 50% 30.25 0.0
04 11:55 Calm 10.00 Fair CLR 50 35.6 58% 30.26 0.0
04 11:35 Calm 10.00 Fair CLR 48.2 35.6 62% 30.26 0.0
04 11:15 N 5 10.00 Fair CLR 48.2 35.6 62% 47 30.26 0.0
04 10:55 W 9 10.00 Fair CLR 46.4 35.6 66% 42 30.27 0.0
04 10:35 Vrbl 6 10.00 Fair CLR 46.4 37.4 71% 44 30.27 0.0
04 10:15 W 7 10.00 Fair CLR 44.6 37.4 76% 41 30.27 0.0
04 09:55 NW 8 10.00 Fair CLR 44.6 37.4 76% 41 30.27 0.0
04 09:35 W 9 10.00 Fair CLR 42.8 39.2 87% 38 30.27 0.0
04 09:15 NW 6 10.00 Fair CLR 41 39.2 93% 38 30.26 0.0
04 08:55 Calm 10.00 Fair CLR 39.2 39.2 100% 30.26 0.0
04 08:35 Calm 10.00 Fair CLR 37.4 37.4 100% 30.26 0.0
04 08:15 Calm 9.00 Fair CLR 35.6 35.6 100% 30.24 0.0
04 07:55 Calm 9.00 Fair CLR 35.6 35.6 100% 30.24 0.0
04 07:35 Calm 9.00 Fair CLR 33.8 33.8 100% 30.23 0.0
04 07:15 Calm 9.00 Fair CLR 33.8 33.8 100% 30.22 0.0
04 06:55 Calm 9.00 A Few Clouds FEW013 33.8 33.8 100% 30.21 0.0
04 06:35 Calm 9.00 Mostly Cloudy BKN013 33.8 33.8 100% 30.21 0.0
04 06:15 Calm 10.00 Fair CLR 33.8 33.8 100% 30.21 0.0
04 05:55 Calm 10.00 Fair CLR 33.8 33.8 100% 30.19 0.0
04 05:35 Calm 10.00 A Few Clouds FEW003 33.8 33.8 100% 30.18 0.0
04 05:15 Calm 10.00 Partly Cloudy SCT003 33.8 33.8 100% 30.18 0.0
04 04:55 Calm 10.00 Partly Cloudy SCT004 33.8 33.8 100% 30.18 0.0
04 04:35 Calm 10.00 A Few Clouds FEW005 33.8 33.8 100% 30.17 0.0
04 04:15 Calm 10.00 Fair CLR 33.8 33.8 100% 30.17 0.0
04 03:55 Calm 10.00 A Few Clouds FEW075 33.8 33.8 100% 30.16 0.0
04 03:35 Calm 10.00 A Few Clouds FEW075 33.8 33.8 100% 30.17 0.0
04 03:15 Calm 10.00 Mostly Cloudy SCT003 SCT050 BKN075 33.8 33.8 100% 30.16 0.0
04 02:55 Calm 9.00 Light Rain OVC003 33.8 33.8 100% 30.16 0.0
04 02:35 Calm 7.00 Light Rain OVC002 33.8 33.8 100% 30.16 0.0
04 02:15 Calm 10.00 Overcast OVC002 33.8 33.8 100% 30.16 0.0
04 01:55 Calm 3.00 Light Rain BKN002 OVC016 33.8 33.8 100% 30.16 0.0
04 01:35 Calm 4.00 Light Rain OVC002 33.8 33.8 100% 30.16 0.0
04 01:15 Calm 5.00 Fog/Mist OVC001 33.8 33.8 100% 30.16 0.0
04 00:55 Calm 2.00 Light Rain BKN001 BKN010 OVC022 33.8 33.8 100% 30.15 0.0
04 00:35 Calm 0.50 Light Rain OVC001 33.8 33.8 100% 30.15 0.0
04 00:15 Calm 1.00 Light Rain OVC001 33.8 33.8 100% 30.15 0.0
03 23:55 Calm 2.50 Light Rain OVC002 33.8 33.8 100% 30.16 0.0
03 23:35 Calm 2.50 Light Rain OVC002 33.8 33.8 100% 30.16 0.0
03 23:15 Calm 0.75 Light Rain OVC001 33.8 33.8 100% 30.16 0.0
03 22:55 Calm 2.00 Light Rain OVC001 33.8 33.8 100% 30.16 0.0
03 22:35 Calm 3.00 Light Rain OVC001 33.8 33.8 100% 30.17 0.0
03 22:15 Calm 3.00 Light Rain OVC001 33.8 33.8 100% 30.18 0.0
03 21:55 Calm 3.00 Light Rain OVC001 33.8 33.8 100% 30.19 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)