National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
St Clair County Airport
Imperial (Metric)
Date Time (cst) 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.
25 13:15 SW 8 G 14 10.00 Overcast BKN038 OVC055 64.4 50 60% 29.91 0.0
25 12:55 S 9 10.00 Overcast SCT037 BKN050 OVC065 62.6 50 64% 29.92 0.0
25 12:35 SW 7 G 13 10.00 Overcast FEW036 OVC055 62.6 50 64% 29.93 0.0
25 12:15 SW 10 10.00 Overcast OVC035 60.8 50 68% 29.95 0.0
25 11:55 SW 9 10.00 Overcast OVC032 60.8 50 68% 29.96 0.0
25 11:35 S 9 10.00 Overcast OVC034 59 50 72% 29.96 0.0
25 11:15 S 8 10.00 Overcast OVC035 59 48.2 68% 29.96 0.0
25 10:55 SW 8 10.00 Overcast BKN035 OVC042 57.2 48.2 72% 29.97 0.0
25 10:35 SW 9 10.00 Overcast OVC042 57.2 48.2 72% 29.98 0.0
25 10:15 SW 12 10.00 Overcast OVC043 55.4 46.4 72% 29.98 0.0
25 09:55 SW 9 10.00 Mostly Cloudy BKN043 53.6 46.4 77% 29.99 0.0
25 09:35 SW 8 G 14 10.00 Overcast OVC042 53.6 46.4 77% 29.99 0.0
25 09:15 S 9 10.00 Overcast BKN040 OVC046 50 44.6 82% 47 30 0.0
25 08:55 SW 12 10.00 Overcast OVC039 50 44.6 82% 46 30 0.0
25 08:35 SW 13 10.00 Overcast OVC039 48.2 44.6 87% 43 30 0.0
25 08:15 SW 10 10.00 Overcast OVC040 48.2 42.8 82% 44 30 0.0
25 07:55 SW 10 10.00 Overcast OVC039 46.4 42.8 87% 42 30 0.0
25 07:35 SW 9 10.00 Mostly Cloudy BKN040 46.4 42.8 87% 42 30 0.0
25 07:15 SW 9 10.00 Partly Cloudy SCT041 44.6 41 87% 40 29.99 0.0
25 06:55 SW 9 10.00 Partly Cloudy SCT035 SCT042 42.8 41 93% 38 30 0.0
25 06:35 SW 9 10.00 Overcast OVC034 42.8 41 93% 38 30 0.0
25 06:15 SW 9 10.00 Overcast OVC033 42.8 41 93% 38 30 0.0
25 05:55 SW 8 10.00 Overcast OVC033 42.8 39.2 87% 39 30 0.0
25 05:35 SW 9 10.00 Overcast OVC032 44.6 39.2 81% 40 29.99 0.0
25 05:15 SW 8 10.00 Overcast OVC032 42.8 39.2 87% 39 30 0.0
25 04:55 S 9 10.00 Overcast OVC033 42.8 37.4 81% 38 30 0.0
25 04:35 S 10 10.00 Overcast OVC032 44.6 37.4 76% 40 30 0.0
25 04:15 S 8 10.00 Overcast OVC031 44.6 37.4 76% 41 30.01 0.0
25 03:55 SW 9 10.00 Overcast BKN032 OVC080 42.8 37.4 81% 38 30.01 0.0
25 03:35 SW 8 10.00 Overcast FEW034 OVC080 42.8 35.6 76% 39 30.02 0.0
25 03:15 SW 7 10.00 Overcast OVC075 42.8 35.6 76% 39 30.02 0.0
25 02:55 SW 7 10.00 Overcast OVC080 42.8 35.6 76% 39 30.01 0.0
25 02:35 SW 7 10.00 Overcast OVC075 42.8 33.8 71% 39 30.02 0.0
25 02:15 SW 7 10.00 Overcast SCT019 OVC070 42.8 33.8 71% 39 30.02 0.0
25 01:55 SW 7 10.00 Overcast SCT019 BKN041 OVC065 42.8 32 66% 39 30.02 0.0
25 01:35 SW 8 10.00 Mostly Cloudy FEW020 SCT026 BKN042 42.8 32 66% 39 30.02 0.0
25 01:15 SW 9 10.00 Overcast BKN019 OVC025 44.6 30.2 57% 40 30.02 0.0
25 00:55 SW 8 10.00 Overcast BKN017 OVC027 42.8 30.2 61% 39 30.02 0.0
25 00:35 SW 7 10.00 Overcast SCT018 BKN024 OVC055 42.8 30.2 61% 39 30.02 0.0
25 00:15 SW 9 10.00 Overcast FEW018 SCT024 OVC070 42.8 28.4 57% 38 30.02 0.0
24 23:55 SW 8 10.00 Overcast SCT022 SCT042 OVC075 39.2 28.4 65% 34 30.01 0.0
24 23:35 Calm 10.00 Mostly Cloudy FEW026 FEW035 BKN075 35.6 26.6 70% 30.03 0.0
24 23:15 Calm 10.00 Mostly Cloudy BKN075 33.8 26.6 75% 30.03 0.0
24 22:55 Calm 10.00 Mostly Cloudy FEW023 FEW029 BKN075 35.6 26.6 70% 30.03 0.0
24 22:35 Calm 10.00 Overcast SCT024 BKN029 OVC070 35.6 24.8 65% 30.03 0.0
24 22:15 Calm 10.00 Overcast SCT015 BKN027 OVC065 37.4 26.6 65% 30.03 0.0
24 21:55 Calm 10.00 Overcast SCT015 BKN023 OVC080 37.4 26.6 65% 30.04 0.0
24 21:35 Calm 10.00 Mostly Cloudy BKN024 BKN029 BKN070 37.4 26.6 65% 30.05 0.0
24 21:15 Calm 10.00 Mostly Cloudy BKN026 BKN032 39.2 24.8 56% 30.05 0.0
24 20:55 Calm 10.00 Mostly Cloudy BKN028 BKN033 39.2 24.8 56% 30.05 0.0
24 20:35 Calm 10.00 A Few Clouds FEW028 FEW033 41 23 49% 30.05 0.0
24 20:15 Calm 10.00 Partly Cloudy SCT019 42.8 23 46% 30.05 0.0
24 19:55 S 5 10.00 Overcast OVC020 44.6 21.2 39% 43 30.05 0.0
24 19:35 S 5 10.00 Overcast BKN023 OVC027 46.4 21.2 37% 45 30.05 0.0
24 19:15 S 6 10.00 Mostly Cloudy BKN023 BKN028 46.4 21.2 37% 44 30.06 0.0
24 18:55 S 7 10.00 Partly Cloudy SCT024 SCT029 48.2 19.4 32% 46 30.05 0.0
24 18:35 S 6 10.00 Partly Cloudy FEW020 SCT027 48.2 19.4 32% 46 30.05 0.0
24 18:15 S 5 10.00 Partly Cloudy SCT027 SCT031 48.2 19.4 32% 47 30.07 0.0
24 17:55 SW 3 10.00 Partly Cloudy SCT031 48.2 17.6 29% 30.07 0.0
24 17:35 S 7 10.00 Fair CLR 50 15.8 26% 48 30.06 0.0
24 17:15 S 9 10.00 Fair CLR 51.8 15.8 24% 30.06 0.0
24 16:55 S 9 G 15 10.00 Fair CLR 51.8 17.6 26% 30.07 0.0
24 16:35 SW 8 G 14 10.00 Fair CLR 51.8 17.6 26% 30.08 0.0
24 16:15 S 8 10.00 Fair CLR 51.8 17.6 26% 30.08 0.0
24 15:55 S 7 G 13 10.00 Fair CLR 51.8 17.6 26% 30.08 0.0
24 15:35 S 8 10.00 Fair CLR 51.8 17.6 26% 30.08 0.0
24 14:55 S 8 10.00 Fair CLR 51.8 17.6 26% 30.09 0.0
24 14:35 S 7 G 13 10.00 Fair CLR 50 17.6 28% 48 30.12 0.0
24 14:15 S 7 G 13 10.00 Fair CLR 50 17.6 28% 48 30.13 0.0
24 12:55 SW 7 10.00 Fair CLR 46.4 17.6 32% 43 30.17 0.0
24 12:35 SW 7 10.00 Fair CLR 46.4 17.6 32% 43 30.19 0.0
24 11:35 Calm 10.00 Fair CLR 41 17.6 39% 30.23 0.0
24 11:15 SW 6 10.00 Fair CLR 41 19.4 42% 38 30.25 0.0
24 10:55 Calm 10.00 Fair CLR 39.2 17.6 42% 30.26 0.0
24 10:35 Calm 10.00 Fair CLR 37.4 15.8 41% 30.27 0.0
24 10:15 SW 5 10.00 Fair CLR 37.4 15.8 41% 34 30.28 0.0
24 09:55 SW 5 10.00 Fair CLR 35.6 17.6 48% 32 30.29 0.0
24 09:35 Calm 10.00 Fair CLR 33.8 17.6 51% 30.29 0.0
24 09:15 Calm 10.00 Fair CLR 33.8 17.6 51% 30.3 0.0
24 08:55 Calm 10.00 Fair CLR 32 17.6 55% 30.31 0.0
24 08:35 Calm 10.00 Fair CLR 32 19.4 60% 30.3 0.0
24 08:15 Calm 10.00 Fair CLR 30.2 19.4 64% 30.3 0.0
24 07:35 Calm 10.00 Fair CLR 26.6 23 86% 30.29 0.0
24 07:15 Calm 10.00 Fair CLR 21.2 19.4 93% 30.3 0.0
24 06:55 Calm 10.00 Fair CLR 19.4 19.4 100% 30.3 0.0
24 06:35 Calm 10.00 Fair CLR 19.4 17.6 93% 30.31 0.0
24 06:15 Calm 10.00 Fair CLR 19.4 17.6 93% 30.31 0.0
24 05:55 Calm 10.00 Partly Cloudy FEW025 SCT036 SCT042 19.4 17.6 93% 30.32 0.0
24 05:35 Calm 10.00 Mostly Cloudy SCT026 BKN036 BKN041 19.4 17.6 93% 30.32 0.0
24 05:15 Calm 10.00 Partly Cloudy FEW028 SCT036 SCT048 19.4 17.6 93% 30.32 0.0
24 04:55 Calm 10.00 Mostly Cloudy FEW022 SCT029 BKN037 19.4 17.6 93% 30.32 0.0
24 04:15 Calm 10.00 Mostly Cloudy FEW027 SCT034 BKN050 21.2 17.6 86% 30.31 0.0
24 03:55 Calm 10.00 Mostly Cloudy FEW027 SCT031 BKN044 21.2 17.6 86% 30.31 0.0
24 03:35 Calm 10.00 Mostly Cloudy FEW026 SCT031 BKN041 21.2 17.6 86% 30.31 0.0
24 03:15 Calm 10.00 Mostly Cloudy FEW025 BKN031 BKN040 21.2 17.6 86% 30.32 0.0
24 02:55 Calm 10.00 Overcast BKN026 BKN034 OVC040 21.2 17.6 86% 30.33 0.0
24 02:35 Calm 10.00 Overcast BKN026 OVC036 21.2 17.6 86% 30.34 0.0
24 02:15 Calm 10.00 Mostly Cloudy BKN026 BKN030 BKN038 21.2 17.6 86% 30.35 0.0
24 01:55 Calm 10.00 Mostly Cloudy SCT025 BKN029 BKN035 23 17.6 80% 30.35 0.0
24 01:35 Calm 10.00 Mostly Cloudy BKN027 BKN035 BKN043 23 17.6 80% 30.35 0.0
24 01:15 Calm 10.00 Mostly Cloudy BKN026 BKN031 BKN042 23 17.6 80% 30.36 0.0
24 00:55 Calm 10.00 Overcast BKN027 OVC036 23 17.6 80% 30.36 0.0
24 00:35 Calm 10.00 Mostly Cloudy BKN027 BKN032 BKN043 24.8 17.6 74% 30.37 0.0
24 00:15 Calm 10.00 Mostly Cloudy BKN028 BKN032 BKN090 24.8 17.6 74% 30.37 0.0
23 23:55 Calm 10.00 Mostly Cloudy BKN029 24.8 17.6 74% 30.38 0.0
23 23:35 Calm 10.00 Mostly Cloudy BKN028 BKN033 24.8 17.6 74% 30.38 0.0
23 23:15 Calm 10.00 Mostly Cloudy BKN029 BKN044 BKN090 24.8 17.6 74% 30.38 0.0
23 22:55 Calm 10.00 Mostly Cloudy FEW026 BKN030 BKN041 24.8 17.6 74% 30.37 0.0
23 22:35 Calm 10.00 Mostly Cloudy SCT027 BKN031 BKN046 26.6 17.6 69% 30.38 0.0
23 22:15 Calm 10.00 Mostly Cloudy BKN029 BKN034 BKN045 26.6 17.6 69% 30.38 0.0
23 21:55 Calm 10.00 Mostly Cloudy BKN029 BKN037 26.6 15.8 64% 30.4 0.0
23 21:35 Calm 10.00 Mostly Cloudy FEW027 BKN031 BKN039 28.4 15.8 59% 30.39 0.0
23 21:15 Calm 10.00 Mostly Cloudy BKN030 BKN036 BKN044 28.4 15.8 59% 30.38 0.0
23 20:55 Calm 10.00 Mostly Cloudy BKN030 BKN036 28.4 15.8 59% 30.39 0.0
23 20:35 W 5 10.00 Mostly Cloudy BKN030 BKN034 28.4 15.8 59% 24 30.4 0.0
23 20:15 W 5 10.00 Mostly Cloudy BKN030 BKN040 28.4 14 55% 24 30.4 0.0
23 19:55 Vrbl 7 10.00 Mostly Cloudy BKN030 BKN037 30.2 14 51% 24 30.39 0.0
23 19:35 NW 6 10.00 Mostly Cloudy BKN029 BKN033 BKN040 30.2 14 51% 25 30.39 0.0
23 19:15 NW 6 10.00 Mostly Cloudy BKN030 BKN038 32 14 47% 27 30.38 0.0
23 18:55 N 8 10.00 Mostly Cloudy BKN029 BKN036 32 12.2 44% 25 30.38 0.0
23 18:35 N 8 10.00 Mostly Cloudy SCT030 BKN036 32 14 47% 25 30.38 0.0
23 18:15 N 8 10.00 A Few Clouds FEW037 33.8 14 44% 28 30.37 0.0
23 17:55 N 12 10.00 Fair CLR 33.8 14 44% 26 30.37 0.0
23 17:35 N 13 10.00 Fair CLR 35.6 14 41% 28 30.37 0.0
23 17:15 N 15 10.00 Fair CLR 37.4 14 38% 29 30.36 0.0
23 16:55 N 10 10.00 Fair CLR 39.2 14 36% 33 30.36 0.0
23 16:35 N 10 10.00 Fair CLR 39.2 14 36% 33 30.35 0.0
23 16:15 Vrbl 7 G 21 10.00 Fair CLR 39.2 14 36% 35 30.35 0.0
23 15:55 NW 9 G 16 10.00 Fair CLR 41 14 33% 36 30.34 0.0
23 15:35 NW 12 10.00 Fair CLR 41 14 33% 35 30.34 0.0
23 15:15 N 15 G 21 10.00 Fair CLR 41 12.2 31% 34 30.34 0.0
23 14:55 N 15 10.00 Fair CLR 42.8 14 31% 36 30.33 0.0
23 13:55 W 9 G 17 10.00 Fair CLR 41 12.2 31% 36 30.33 0.0
23 13:35 NW 9 G 22 10.00 Fair CLR 41 12.2 31% 36 30.33 0.0
23 13:15 NW 12 G 21 10.00 Fair CLR 41 14 33% 35 30.34 0.0
23 12:55 N 17 G 23 10.00 Fair CLR 41 12.2 31% 33 30.34 0.0
23 12:35 N 10 G 23 10.00 Fair CLR 41 12.2 31% 35 30.34 0.0
23 12:15 NW 13 G 21 10.00 Fair CLR 41 14 33% 34 30.35 0.0
23 11:55 NW 13 G 18 10.00 Fair CLR 39.2 12.2 33% 32 30.36 0.0
23 11:35 NW 10 G 17 10.00 Fair CLR 39.2 12.2 33% 33 30.37 0.0
23 11:15 NW 10 G 21 10.00 Fair CLR 39.2 12.2 33% 33 30.38 0.0
23 10:55 NW 10 10.00 Fair CLR 37.4 12.2 35% 31 30.38 0.0
23 10:35 Vrbl 7 G 15 10.00 Fair CLR 37.4 12.2 35% 33 30.38 0.0
23 10:15 Vrbl 6 G 17 10.00 Fair CLR 35.6 12.2 38% 31 30.38 0.0
23 09:55 NW 9 10.00 Fair CLR 35.6 14 41% 29 30.38 0.0
23 09:35 NW 9 G 18 10.00 Fair CLR 33.8 14 44% 27 30.38 0.0
23 09:15 NW 13 10.00 Fair CLR 33.8 12.2 41% 25 30.38 0.0
23 08:55 NW 13 G 21 10.00 Fair CLR 32 12.2 44% 23 30.38 0.0
23 08:35 NW 13 G 18 10.00 Fair CLR 32 12.2 44% 23 30.38 0.0
23 08:15 NW 9 G 16 10.00 Fair CLR 32 12.2 44% 25 30.38 0.0
23 07:55 NW 8 10.00 Fair CLR 32 14 47% 25 30.39 0.0
23 07:35 Vrbl 7 10.00 Fair CLR 30.2 12.2 47% 24 30.39 0.0
23 07:15 Vrbl 3 10.00 Fair CLR 30.2 14 51% 30.38 0.0
23 06:55 Calm 10.00 Fair CLR 28.4 12.2 51% 30.37 0.0
23 06:35 Calm 10.00 Fair CLR 28.4 12.2 51% 30.37 0.0
23 06:15 Vrbl 5 10.00 Fair CLR 28.4 12.2 51% 24 30.37 0.0
23 05:55 Calm 10.00 Partly Cloudy SCT033 SCT039 28.4 12.2 51% 30.37 0.0
23 05:35 Calm 10.00 Mostly Cloudy BKN033 28.4 12.2 51% 30.37 0.0
23 05:15 Vrbl 6 10.00 Mostly Cloudy BKN032 BKN040 28.4 12.2 51% 23 30.36 0.0
23 04:55 Vrbl 7 G 14 10.00 Overcast BKN032 OVC039 28.4 12.2 51% 22 30.35 0.0
23 04:35 Vrbl 5 G 14 10.00 Mostly Cloudy BKN032 BKN038 BKN048 28.4 12.2 51% 24 30.35 0.0
23 04:15 N 12 G 20 10.00 Mostly Cloudy BKN033 BKN046 30.2 12.2 47% 21 30.35 0.0
23 03:55 NW 9 G 20 10.00 Overcast OVC033 30.2 14 51% 23 30.35 0.0
23 03:35 Vrbl 7 10.00 Overcast BKN035 OVC042 30.2 14 51% 24 30.34 0.0
23 03:15 Vrbl 6 G 12 10.00 Overcast OVC035 30.2 14 51% 25 30.34 0.0
23 02:55 W 6 G 15 10.00 Mostly Cloudy BKN032 BKN039 30.2 14 51% 25 30.34 0.0
23 02:35 N 16 G 22 10.00 Mostly Cloudy BKN034 BKN040 32 12.2 44% 22 30.33 0.0
23 02:15 NW 13 G 22 10.00 Mostly Cloudy BKN034 BKN110 32 14 47% 23 30.34 0.0
23 01:55 NW 15 G 25 10.00 Mostly Cloudy BKN034 BKN043 BKN110 32 14 47% 22 30.33 0.0
23 01:35 NW 13 10.00 Mostly Cloudy BKN034 BKN039 32 14 47% 23 30.33 0.0
23 01:15 Vrbl 7 G 15 10.00 Mostly Cloudy BKN036 BKN050 33.8 14 44% 28 30.33 0.0
23 00:55 NW 9 G 15 10.00 Mostly Cloudy BKN035 BKN050 BKN110 33.8 14 44% 27 30.33 0.0
23 00:35 NW 9 G 23 10.00 Mostly Cloudy SCT035 SCT040 BKN049 33.8 14 44% 27 30.33 0.0
23 00:15 W 8 10.00 Mostly Cloudy FEW033 SCT042 BKN050 33.8 15.8 48% 28 30.34 0.0
22 23:55 NW 10 G 20 10.00 Mostly Cloudy FEW029 FEW037 BKN044 35.6 15.8 44% 29 30.34 0.0
22 23:35 NW 10 G 26 10.00 Mostly Cloudy FEW036 BKN043 BKN049 35.6 15.8 44% 29 30.34 0.0
22 23:15 NW 8 G 23 10.00 Overcast SCT043 OVC050 35.6 17.6 48% 30 30.33 0.0
22 22:55 W 6 G 17 10.00 Overcast OVC050 37.4 17.6 45% 33 30.33 0.0
22 22:35 Vrbl 7 G 17 10.00 Overcast OVC050 37.4 17.6 45% 33 30.33 0.0
22 22:15 W 10 G 17 10.00 Overcast OVC050 37.4 17.6 45% 31 30.33 0.0
22 21:55 Vrbl 5 G 16 10.00 Overcast FEW047 OVC055 37.4 17.6 45% 34 30.34 0.0
22 21:35 W 8 G 18 10.00 Mostly Cloudy FEW037 SCT043 BKN048 37.4 17.6 45% 32 30.34 0.0
22 21:15 Vrbl 7 G 20 10.00 Mostly Cloudy FEW038 BKN044 BKN050 39.2 17.6 42% 35 30.33 0.0
22 20:55 NW 9 10.00 Mostly Cloudy SCT043 BKN049 39.2 17.6 42% 34 30.33 0.0
22 20:35 W 8 G 18 10.00 Partly Cloudy SCT041 SCT048 39.2 17.6 42% 34 30.32 0.0
22 20:15 NW 10 G 16 10.00 Mostly Cloudy FEW036 SCT043 BKN050 39.2 17.6 42% 33 30.32 0.0
22 19:55 NW 9 G 17 10.00 Mostly Cloudy SCT041 BKN048 BKN055 41 17.6 39% 36 30.32 0.0
22 19:35 NW 9 G 16 10.00 Mostly Cloudy BKN043 BKN050 41 17.6 39% 36 30.31 0.0
22 19:15 W 7 G 14 10.00 Mostly Cloudy SCT042 BKN047 BKN055 41 17.6 39% 37 30.31 0.0
22 18:55 NW 9 10.00 Mostly Cloudy FEW039 BKN046 BKN055 41 17.6 39% 36 30.3 0.0
22 18:35 W 7 G 13 10.00 Mostly Cloudy SCT043 BKN050 BKN055 41 17.6 39% 37 30.3 0.0
22 18:15 Vrbl 3 10.00 Partly Cloudy FEW043 SCT049 SCT060 42.8 17.6 36% 30.29 0.0
22 17:55 W 8 10.00 Fair CLR 42.8 17.6 36% 39 30.28 0.0
22 17:35 W 10 G 22 10.00 Fair CLR 42.8 15.8 34% 38 30.28 0.0
22 17:15 NW 14 G 21 10.00 Fair CLR 44.6 15.8 31% 39 30.27 0.0
22 16:55 NW 15 G 21 10.00 Fair CLR 44.6 15.8 31% 38 30.27 0.0
22 16:35 NW 12 G 18 10.00 Fair CLR 46.4 17.6 32% 42 30.26 0.0
22 15:15 NW 13 G 26 10.00 Fair CLR 48.2 17.6 29% 43 30.24 0.0
22 14:55 W 17 G 24 10.00 Fair CLR 48.2 19.4 32% 42 30.25 0.0
22 14:35 NW 16 G 24 10.00 Fair CLR 48.2 17.6 29% 43 30.25 0.0
22 14:15 NW 14 G 26 10.00 A Few Clouds FEW070 FEW080 48.2 19.4 32% 43 30.25 0.0
22 13:55 NW 17 G 25 10.00 A Few Clouds FEW070 FEW080 50 19.4 30% 45 30.26 0.0
22 13:35 NW 16 G 23 10.00 Fair CLR 50 19.4 30% 45 30.26 0.0
Date Time (cst) 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)