Weather observations for the past three days for
Mc Gregor - Isedor Iverson Airport
Metric (Imperial)
Date Time (cdt) 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.
28 00:15 NW 22 G 39 16.09 Overcast OVC012 4 2 87% -0 75.36 0.0
27 23:55 NW 24 G 39 16.09 Overcast OVC012 4 2 87% -0 75.34 0.0
27 23:35 NW 22 G 35 16.09 Overcast OVC014 4 2 87% -0 75.31 0.0
27 23:15 NW 26 G 35 16.09 Overcast OVC014 3 2 93% -2 75.31 0.0
27 22:55 NW 26 G 39 16.09 Overcast OVC014 3 2 93% -2 75.29 0.0
27 22:35 NW 22 G 33 16.09 Light Drizzle OVC014 3 2 93% -1 75.29 0.0
27 22:15 NW 26 G 39 16.09 Light Drizzle OVC014 4 2 87% -0 75.26 0.0
27 21:55 NW 22 G 33 16.09 Light Drizzle OVC014 4 2 87% -0 75.26 0.0
27 21:35 NW 17 G 35 16.09 Light Rain OVC014 4 3 93% 1 75.23 0.0
27 21:15 NW 30 G 41 16.09 Light Drizzle OVC014 5 3 87% 0 75.21 0.0
27 20:55 NW 19 G 35 16.09 Rain OVC014 5 3 87% 2 75.21 0.0 0.03
27 20:35 NW 30 G 43 16.09 Light Drizzle BKN012 OVC018 5 3 87% 0 75.18 0.0 0.03
27 20:15 NW 26 G 39 16.09 Light Rain OVC014 5 4 93% 1 75.16 0.0
27 19:55 NW 20 G 35 16.09 Drizzle OVC013 6 4 87% 3 75.13 0.0 0.08
27 19:35 NW 24 G 31 16.09 Light Rain BKN010 BKN015 OVC026 6 5 93% 2 75.11 0.0 0.05
27 19:15 NW 19 G 33 11.27 Rain BKN011 OVC017 6 5 93% 3 75.08 0.0 0.03
27 18:55 NW 24 G 35 11.27 Light Rain BKN009 OVC015 6 5 93% 2 75.08 0.0 0.18
27 18:35 NW 22 11.27 Rain BKN009 OVC014 6 6 100% 2 75.08 0.0 0.13
27 18:15 NW 17 G 30 11.27 Rain OVC009 7 6 93% 4 75.06 0.0 0.08
27 17:55 NW 26 8.05 Rain OVC009 7 6 93% 3 75.06 0.0 0.38
27 17:35 NW 22 G 30 8.05 Rain BKN006 OVC012 7 6 93% 4 75.03 0.0 0.28
27 17:15 NW 17 8.05 Rain OVC007 7 6 93% 4 75.03 0.0 0.13
27 16:55 N 15 8.05 Rain BKN009 OVC013 7 7 100% 5 75.03 0.0 0.3
27 16:35 N 15 11.27 Rain BKN009 OVC013 7 6 93% 5 75.03 0.0 0.18
27 16:15 N 13 11.27 Rain BKN007 OVC016 7 6 93% 5 75.03 0.0 0.08
27 15:55 N 13 8.05 Rain BKN007 OVC014 7 6 93% 5 75.03 0.0 0.38
27 15:35 N 11 8.05 Rain BKN005 OVC014 7 6 93% 5 75.03 0.0 0.25
27 15:15 N 13 6.44 Rain BKN005 OVC012 7 6 93% 5 75.06 0.0 0.15
27 14:55 N 11 6.44 Rain BKN005 OVC012 7 6 93% 5 75.08 0.0 0.46
27 14:35 N 9 6.44 Rain BKN005 OVC010 6 6 100% 4 75.11 0.0 0.3
27 14:15 N 7 6.44 Rain BKN005 OVC011 6 5 93% 5 75.11 0.0 0.13
27 13:55 N 9 6.44 Rain BKN005 OVC013 6 5 93% 4 75.11 0.0 0.43
27 13:35 NE 7 6.44 Rain BKN005 BKN010 OVC013 6 5 93% 5 75.13 0.0 0.3
27 13:15 NE 11 4.02 Rain BKN005 OVC013 5 5 100% 3 75.16 0.0 0.15
27 12:55 NE 6 2.82 Light Drizzle OVC005 5 5 100% 75.21 0.0 0.08
27 12:35 NE 9 3.22 Light Drizzle OVC005 5 4 93% 3 75.18 0.0 0.05
27 12:15 NE 11 3.22 Light Drizzle OVC005 5 4 93% 3 75.18 0.0 0.03
27 11:55 NE 9 4.83 Light Drizzle OVC005 5 4 93% 3 75.23 0.0
27 11:35 NE 13 8.05 Fog/Mist OVC005 5 3 87% 2 75.26 0.0
27 11:15 NE 15 16.09 Overcast OVC005 5 3 87% 2 75.29 0.0
27 10:55 NE 9 16.09 Overcast OVC005 5 3 87% 3 75.31 0.0
27 10:35 NE 13 11.27 Overcast OVC005 4 3 93% 1 75.31 0.0
27 10:15 NE 9 6.44 Fog/Mist OVC005 4 3 93% 2 75.31 0.0
27 09:55 NE 6 6.44 Fog/Mist OVC005 4 3 93% 75.36 0.0 0.03
27 09:35 NE 7 4.83 Fog/Mist OVC005 4 3 93% 2 75.39 0.0 0.03
27 09:15 NE 7 11.27 Overcast OVC007 4 3 93% 2 75.41 0.0 0.03
27 08:55 NE 7 4.02 Drizzle OVC007 3 3 100% 1 75.44 0.0 0.03
27 08:35 NE 7 16.09 Light Rain OVC007 3 2 93% 1 75.46 0.0
27 08:15 NE 6 16.09 Overcast OVC007 3 2 93% 75.49 0.0
27 07:55 NE 11 8.05 Rain OVC007 3 2 93% 0 75.49 0.0 0.15
27 07:35 E 11 8.05 Rain OVC007 3 2 93% 0 75.46 0.0 0.08
27 07:15 NE 11 11.27 Light Rain OVC007 3 2 93% 0 75.49 0.0 0.03
27 06:55 NE 13 16.09 Light Drizzle OVC007 3 2 93% 0 75.46 0.0 0.2
27 06:35 E 13 11.27 Rain OVC007 3 2 93% 0 75.49 0.0 0.2
27 06:15 E 11 8.05 Rain OVC007 3 2 93% 0 75.51 0.0 0.1
27 05:55 NE 13 4.83 Light Rain OVC007 3 2 93% 0 75.51 0.0 0.69
27 05:35 E 22 G 31 4.83 Rain OVC007 3 2 93% -1 75.51 0.0 0.38
27 05:15 NE 22 G 31 8.05 Rain OVC007 3 3 100% -1 75.57 0.0 0.15
27 04:55 NE 15 6.44 Rain OVC007 4 3 93% 1 75.62 0.0 0.58
27 04:35 E 15 3.22 Snow OVC007 5 3 87% 2 75.67 0.0 0.38
27 04:15 E 11 11.27 Rain BKN009 BKN015 OVC042 5 3 87% 3 75.74 0.0 0.1
27 03:55 E 15 11.27 Light Rain BKN009 BKN023 OVC050 5 3 87% 2 75.74 0.0 0.13
27 03:35 E 15 16.09 Light Rain BKN009 BKN029 OVC044 5 3 87% 2 75.74 0.0 0.08
27 03:15 E 19 G 26 16.09 Light Rain BKN009 BKN028 OVC050 5 3 87% 2 75.74 0.0 0.03
27 02:55 NE 15 16.09 Light Rain SCT009 SCT037 OVC060 5 3 87% 2 75.79 0.0 0.03
27 02:35 E 15 G 31 16.09 Light Rain SCT009 SCT050 OVC070 5 3 87% 2 75.82 0.0
27 02:15 NE 19 G 30 16.09 Light Rain BKN009 BKN034 OVC070 5 3 87% 2 75.87 0.0
27 01:55 E 17 G 30 16.09 Light Rain BKN011 BKN034 OVC070 5 3 87% 2 75.92 0.0 0.05
27 01:35 E 17 16.09 Light Rain OVC011 5 3 87% 2 76 0.0 0.03
27 01:15 E 20 G 30 16.09 Light Rain OVC011 5 3 87% 1 76.02 0.0
27 00:55 E 19 G 28 16.09 Light Drizzle OVC011 5 3 87% 2 76.02 0.0 0.03
27 00:35 E 19 G 26 16.09 Light Rain BKN011 OVC014 5 3 87% 2 76.02 0.0 0.03
27 00:15 E 11 16.09 Light Rain BKN011 BKN050 OVC080 5 3 87% 3 76.05 0.0
26 23:55 E 17 G 31 16.09 Light Drizzle SCT011 BKN050 OVC070 5 3 87% 2 76.07 0.0
26 23:35 E 13 G 28 16.09 Light Drizzle SCT013 SCT038 OVC065 5 3 87% 2 76.1 0.0
26 23:15 E 20 G 28 16.09 Light Rain OVC040 5 3 87% 1 76.1 0.0
26 22:55 E 17 G 30 16.09 Light Drizzle BKN043 OVC060 6 2 76% 3 76.12 0.0
26 22:35 E 17 16.09 Overcast BKN046 BKN060 OVC100 6 2 76% 3 76.17 0.0
26 22:15 E 11 16.09 Overcast SCT050 BKN070 OVC100 6 2 76% 4 76.2 0.0
26 21:55 E 13 G 26 16.09 Overcast OVC070 6 2 76% 4 76.23 0.0
26 21:35 NE 9 16.09 Overcast OVC070 6 3 81% 4 76.23 0.0
26 21:15 NE 9 16.09 Overcast OVC070 6 3 81% 4 76.23 0.0
26 20:55 NE 9 16.09 Overcast OVC070 6 3 81% 4 76.23 0.0
26 20:35 NE 9 16.09 Overcast OVC060 6 3 81% 4 76.25 0.0
26 20:15 NE 6 16.09 Overcast OVC060 6 3 81% 76.25 0.0
26 19:55 NE 15 16.09 Overcast BKN050 OVC070 6 3 81% 3 76.25 0.0
26 19:35 NE 13 16.09 Overcast OVC048 6 3 81% 4 76.28 0.0
26 19:15 NE 11 16.09 Overcast OVC046 6 3 81% 4 76.3 0.0
26 18:55 E 11 16.09 Overcast OVC048 6 4 87% 4 76.3 0.0
26 18:35 E 19 G 26 16.09 Overcast BKN048 OVC065 7 4 81% 4 76.3 0.0
26 18:15 E 15 G 26 16.09 Overcast OVC065 7 4 81% 5 76.3 0.0
26 17:55 E 20 G 26 16.09 Overcast SCT060 OVC065 7 5 87% 4 76.3 0.0 0.05
26 17:35 E 15 16.09 Overcast SCT044 BKN060 OVC075 7 5 87% 5 76.3 0.0 0.05
26 17:15 E 19 11.27 Rain SCT037 BKN060 OVC075 8 5 82% 5 76.3 0.0 0.05
26 16:55 E 19 16.09 Light Rain OVC060 9 5 76% 7 76.33 0.0
26 16:35 E 13 16.09 Overcast OVC060 10 4 67% 8 76.33 0.0
26 16:15 E 13 16.09 Overcast OVC060 10 4 67% 8 76.3 0.0
26 15:55 E 13 16.09 Overcast OVC070 10 4 67% 8 76.33 0.0
26 15:35 E 17 16.09 Overcast SCT031 OVC070 11 5 67% 76.33 0.0
26 15:15 E 17 16.09 Overcast OVC070 11 3 58% 76.35 0.0
26 14:55 NE 13 16.09 Overcast SCT032 OVC080 11 3 58% 76.38 0.0
26 14:35 NE 15 16.09 Overcast SCT032 OVC080 11 3 58% 76.38 0.0
26 14:15 E 13 16.09 Overcast OVC080 11 3 58% 76.38 0.0
26 13:55 E 17 16.09 Overcast OVC080 12 3 54% 76.38 0.0
26 13:35 NE 15 G 31 16.09 Overcast BKN080 OVC120 11 3 58% 76.38 0.0
26 13:15 E 15 16.09 Mostly Cloudy SCT090 BKN120 11 3 58% 76.4 0.0
26 12:55 NE 17 16.09 Overcast SCT021 SCT090 OVC120 10 3 62% 8 76.43 0.0
26 12:35 NE 15 16.09 Overcast SCT021 OVC120 10 4 67% 8 76.43 0.0
26 12:15 NE 17 16.09 Mostly Cloudy SCT017 BKN110 9 4 71% 7 76.43 0.0
26 11:55 NE 9 16.09 Overcast OVC110 8 3 71% 7 76.45 0.0
26 11:35 NE 15 16.09 Overcast SCT013 SCT060 OVC110 7 3 76% 5 76.45 0.0
26 11:15 NE 9 16.09 Overcast SCT012 BKN060 OVC120 7 4 81% 5 76.48 0.0
26 10:55 NE 11 16.09 Overcast OVC060 7 4 81% 5 76.5 0.0
26 10:35 NE 9 16.09 Overcast OVC060 6 3 81% 4 76.5 0.0
26 10:15 NE 11 16.09 Overcast SCT012 OVC060 6 3 81% 4 76.5 0.0
26 09:55 NE 9 16.09 Overcast OVC060 5 3 87% 3 76.5 0.0
26 09:35 NE 9 16.09 Overcast OVC050 5 3 87% 3 76.5 0.0
26 09:15 NE 7 16.09 Overcast OVC050 5 3 87% 4 76.5 0.0
26 08:55 NE 7 16.09 Overcast OVC050 4 2 87% 2 76.5 0.0
26 08:35 E 13 16.09 Overcast OVC050 4 2 87% 1 76.45 0.0
26 08:15 NE 7 16.09 Overcast OVC050 3 2 93% 1 76.48 0.0
26 07:55 E 9 16.09 Overcast OVC046 3 2 93% 1 76.5 0.0
26 07:35 E 7 16.09 Overcast BKN046 OVC060 3 2 93% 1 76.5 0.0
26 07:15 E 13 16.09 Overcast SCT046 OVC060 3 2 93% 0 76.45 0.0
26 06:55 NE 6 16.09 Overcast SCT046 OVC060 3 2 93% 76.5 0.0
26 06:35 NE 6 16.09 Light Drizzle SCT033 SCT048 OVC060 3 2 93% 76.45 0.0
26 06:15 E 7 16.09 Light Drizzle BKN031 OVC046 3 2 93% 1 76.48 0.0
26 05:55 Calm 11.27 Drizzle OVC031 3 2 93% 76.48 0.0 0.05
26 05:35 Calm 16.09 Drizzle BKN031 BKN044 OVC050 3 2 93% 76.5 0.0 0.05
26 05:15 N 7 16.09 Rain SCT021 BKN026 OVC050 3 2 93% 1 76.48 0.0 0.03
26 04:55 N 7 8.05 Rain OVC022 3 2 93% 1 76.48 0.0 0.18
26 04:35 N 15 11.27 Rain SCT012 OVC024 3 2 93% -0 76.48 0.0 0.13
26 04:15 NW 9 11.27 Rain SCT009 OVC012 3 2 93% 1 76.48 0.0 0.05
26 03:55 N 7 8.05 Rain SCT009 BKN014 OVC027 4 3 93% 2 76.43 0.0 0.15
26 03:35 W 6 16.09 Light Rain SCT027 BKN041 OVC050 4 3 93% 76.45 0.0 0.08
26 03:15 N 11 16.09 Light Rain SCT027 SCT032 OVC048 4 3 93% 2 76.35 0.0 0.05
26 02:55 N 7 11.27 Rain BKN030 BKN039 OVC047 4 3 93% 2 76.38 0.0 0.2
26 02:35 N 11 11.27 Light Rain SCT029 BKN036 OVC050 5 3 87% 3 76.38 0.0 0.13
26 02:15 N 6 11.27 Light Rain SCT026 BKN034 OVC043 5 3 87% 76.38 0.0 0.05
26 01:55 NW 6 16.09 Rain BKN036 OVC043 5 3 87% 76.38 0.0 0.15
26 01:35 NW 11 16.09 Rain SCT038 BKN044 OVC050 5 3 87% 3 76.38 0.0 0.13
26 01:15 NW 9 16.09 Rain SCT024 SCT030 OVC055 5 4 93% 3 76.38 0.0 0.08
26 00:55 Calm 16.09 Light Rain SCT028 SCT032 OVC042 6 4 87% 76.38 0.0 0.05
26 00:35 Calm 16.09 Drizzle BKN042 OVC048 6 4 87% 76.4 0.0 0.03
26 00:15 Calm 16.09 Light Rain BKN048 OVC050 6 4 87% 76.38 0.0 0.03
25 23:55 Calm 16.09 Light Rain BKN060 6 5 93% 76.35 0.0 0.03
25 23:35 Calm 16.09 Rain SCT027 SCT037 OVC060 6 5 93% 76.35 0.0
25 23:15 Calm 16.09 Drizzle SCT042 OVC060 6 5 93% 76.38 0.0
25 22:55 Calm 16.09 Overcast SCT042 OVC070 6 5 93% 76.38 0.0 0.05
25 22:35 Calm 16.09 Light Drizzle SCT037 SCT050 OVC070 6 5 93% 76.38 0.0 0.03
25 22:15 Calm 16.09 Rain BKN037 BKN043 OVC050 6 5 93% 76.4 0.0 0.03
25 21:55 S 6 16.09 Light Rain BKN037 BKN043 OVC050 6 5 93% 76.4 0.0 0.03
25 21:35 Calm 16.09 Light Rain BKN037 BKN043 OVC080 6 5 93% 76.38 0.0
25 21:15 Calm 16.09 Light Rain BKN039 BKN065 OVC080 6 5 93% 76.35 0.0
25 20:55 Calm 16.09 Rain BKN037 OVC045 6 5 93% 76.33 0.0 0.05
25 20:35 Calm 16.09 Light Rain SCT039 SCT045 OVC050 7 5 87% 76.33 0.0 0.03
25 20:15 Calm 16.09 Light Rain OVC050 7 5 87% 76.3 0.0
25 19:55 Calm 16.09 Light Rain OVC050 7 5 87% 76.3 0.0
25 19:35 Calm 16.09 Light Rain OVC050 7 5 87% 76.3 0.0
25 19:15 NW 7 16.09 Overcast OVC050 7 5 87% 6 76.3 0.0
25 18:55 NW 9 16.09 Light Rain SCT034 SCT044 OVC060 7 5 87% 5 76.3 0.0 0.05
25 18:35 NW 7 16.09 Light Rain SCT032 BKN049 OVC060 7 5 87% 6 76.3 0.0 0.03
25 18:15 NW 7 16.09 Light Rain SCT030 BKN041 OVC060 8 5 82% 7 76.3 0.0 0.03
25 17:55 W 9 16.09 Light Rain SCT039 OVC047 8 3 71% 7 76.3 0.0
25 17:35 W 7 16.09 Light Drizzle SCT035 OVC045 9 3 66% 8 76.3 0.0
25 17:15 W 6 16.09 Light Rain SCT036 BKN047 OVC070 10 2 58% 76.28 0.0
25 16:55 W 11 16.09 Light Drizzle SCT034 BKN045 OVC070 10 1 54% 9 76.28 0.0
25 16:35 W 11 16.09 Overcast BKN045 OVC050 11 1 50% 76.25 0.0
25 16:15 W 7 16.09 Overcast SCT048 SCT050 OVC070 11 0 47% 76.25 0.0
25 15:55 NW 7 16.09 Overcast OVC070 11 0 47% 76.25 0.0
25 15:35 S 11 16.09 Overcast SCT048 SCT060 OVC080 11 0 47% 76.25 0.0
25 15:15 W 11 16.09 Overcast BKN048 BKN060 OVC080 12 -1 41% 76.25 0.0
25 14:55 W 13 16.09 Overcast SCT048 BKN060 OVC080 12 -2 38% 76.25 0.0
25 14:35 Calm 16.09 Overcast SCT060 SCT070 OVC080 12 -2 38% 76.25 0.0
25 14:15 SW 20 16.09 Overcast SCT050 BKN060 OVC080 12 -2 38% 76.25 0.0
25 13:55 Calm 16.09 Overcast BKN060 OVC080 12 -2 38% 76.25 0.0
25 13:35 SW 6 16.09 Overcast SCT060 SCT070 OVC080 12 -3 35% 76.25 0.0
25 13:15 W 11 16.09 Overcast SCT075 OVC090 12 -2 38% 76.25 0.0
25 12:55 W 7 16.09 Overcast OVC090 12 -2 38% 76.23 0.0
25 12:35 Calm 16.09 Mostly Cloudy BKN100 12 -3 35% 76.23 0.0
25 12:15 Calm 16.09 Partly Cloudy SCT060 SCT110 12 -3 35% 76.23 0.0
25 11:55 SW 7 16.09 Mostly Cloudy SCT060 BKN085 BKN110 12 -3 35% 76.25 0.0
25 11:35 SW 9 16.09 Partly Cloudy SCT100 12 -3 35% 76.25 0.0
25 11:15 SW 6 16.09 Fair CLR 12 -1 41% 76.25 0.0
25 10:55 SW 11 16.09 Fair CLR 11 -1 44% 76.25 0.0
25 10:35 SW 7 16.09 Partly Cloudy SCT070 11 0 47% 76.28 0.0
25 10:15 Calm 16.09 Overcast BKN070 OVC085 10 0 50% 76.28 0.0
25 09:55 SW 6 16.09 Overcast SCT070 OVC100 9 1 58% 76.3 0.0
25 09:35 S 7 16.09 Partly Cloudy SCT100 8 0 57% 7 76.3 0.0
25 09:15 Calm 16.09 Mostly Cloudy BKN090 7 0 61% 76.25 0.0
25 08:55 Calm 16.09 Overcast OVC090 6 0 66% 76.25 0.0
25 08:35 Calm 16.09 Overcast OVC090 5 1 76% 76.23 0.0
25 08:15 Calm 16.09 Overcast OVC090 5 0 70% 76.23 0.0
25 07:55 Calm 16.09 Overcast OVC090 3 0 81% 76.25 0.0
25 07:35 Calm 16.09 Mostly Cloudy BKN100 3 0 81% 76.2 0.0
25 07:15 Calm 16.09 Partly Cloudy SCT100 2 0 87% 76.17 0.0
25 06:55 Calm 16.09 Overcast OVC100 2 0 87% 76.17 0.0
25 06:35 Calm 16.09 Overcast OVC100 2 0 87% 76.17 0.0
25 06:15 Calm 16.09 Mostly Cloudy BKN100 2 0 87% 76.15 0.0
25 05:55 Calm 16.09 Partly Cloudy SCT100 1 0 93% 76.12 0.0
25 05:35 Calm 16.09 Mostly Cloudy BKN100 2 0 87% 76.15 0.0
25 05:15 Calm 16.09 Overcast OVC100 2 0 87% 76.1 0.0
25 04:55 Calm 16.09 Overcast OVC110 3 0 81% 76.1 0.0
25 04:35 Calm 16.09 Mostly Cloudy BKN110 2 0 87% 76.1 0.0
25 04:15 Calm 16.09 Partly Cloudy SCT120 2 0 87% 76.1 0.0
25 03:55 Calm 16.09 Partly Cloudy SCT120 1 0 93% 76.1 0.0
25 03:35 Calm 16.09 Partly Cloudy SCT120 2 0 87% 76.1 0.0
25 03:15 Calm 16.09 Fair CLR 3 0 81% 76.1 0.0
25 02:55 Calm 16.09 Fair CLR 3 -1 75% 76.1 0.0
25 02:35 Calm 16.09 Fair CLR 5 -1 66% 76.1 0.0
25 02:15 Calm 16.09 Fair CLR 4 0 75% 76.1 0.0
25 01:55 Calm 16.09 Fair CLR 5 0 70% 76.1 0.0
25 01:35 Calm 16.09 Fair CLR 3 0 81% 76.07 0.0
25 01:15 Calm 16.09 Fair CLR 3 0 81% 76.07 0.0
25 00:55 Calm 16.09 Fair CLR 3 0 81% 76.07 0.0
25 00:35 Calm 16.09 Fair CLR 4 0 75% 76.05 0.0
Date Time (cdt) 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)