National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Pontiac Municipal Airport
Imperial (Metric)
Date Time (cdt) 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.
14 19:35 Calm 10.00 Overcast OVC039 84.6 68.7 59% 88 30.05 0.0
14 19:15 Calm 10.00 Overcast OVC039 84.6 68.5 59% 88 30.04 0.0
14 18:55 Calm 10.00 Mostly Cloudy BKN039 85.8 67.8 86.9 81.3 55% 89 30.05 0.0
14 18:35 Calm 10.00 Partly Cloudy SCT043 85.1 67.8 56% 88 30.04 0.0
14 18:15 Calm 10.00 Partly Cloudy SCT060 85.3 67.3 55% 88 30.04 0.0
14 17:55 Calm 10.00 Mostly Cloudy SCT038 SCT047 BKN060 84.9 68.4 58% 88 30.04 0.0
14 17:35 Calm 10.00 Mostly Cloudy BKN038 BKN049 BKN060 86.2 67.8 54% 89 30.04 0.0
14 17:15 Calm 4.00 Mostly Cloudy with Haze SCT038 BKN046 BKN050 86.2 66.9 53% 89 30.05 0.0
14 16:55 Calm 10.00 Partly Cloudy SCT038 SCT050 86.2 66.6 52% 89 30.05 0.0
14 16:35 SW 5 10.00 Partly Cloudy SCT040 SCT070 86 67.5 54% 89 30.05 0.0
14 16:15 SW 5 10.00 Mostly Cloudy SCT040 BKN049 BKN055 86.5 67.3 53% 90 30.06 0.0
14 15:55 Calm 10.00 Mostly Cloudy SCT040 SCT048 BKN055 83.8 66.2 55% 86 30.06 0.0
14 15:35 SW 3 10.00 Partly Cloudy SCT040 SCT046 85.1 66.4 54% 88 30.07 0.0
14 15:15 S 6 10.00 Partly Cloudy SCT041 85.5 65.7 52% 88 30.07 0.0
14 14:55 W 3 10.00 Fair CLR 85.5 64.8 50% 87 30.08 0.0
14 14:35 NW 3 10.00 Partly Cloudy SCT038 84.6 65.5 53% 87 30.08 0.0
14 14:15 Calm 10.00 Partly Cloudy SCT038 83.3 64.8 54% 85 30.08 0.0
14 13:55 SW 3 10.00 Fair CLR 83.5 65.3 54% 85 30.09 0.0
14 13:35 Calm 10.00 Fair CLR 83.7 64.9 53% 85 30.1 0.0
14 13:15 SE 5 5.00 Mostly Cloudy with Haze SCT038 BKN046 82.8 65.5 56% 85 30.1 0.0
14 12:55 E 5 7.00 Overcast SCT038 OVC048 81.3 66.2 83.1 67.3 60% 84 30.1 0.0
14 12:35 Calm 10.00 Overcast SCT040 OVC046 81.9 64.9 57% 84 30.1 0.0
14 12:15 Calm 10.00 Overcast OVC045 80.8 63.5 56% 82 30.11 0.0
14 11:55 Calm 10.00 Mostly Cloudy BKN043 82.2 64.4 55% 84 30.11 0.0
14 11:35 S 3 10.00 Fair CLR 81 63.9 56% 82 30.11 0.0
14 11:15 Calm 10.00 Fair CLR 81.1 63 54% 82 30.11 0.0
14 10:55 Calm 10.00 Fair CLR 80.4 62.6 55% 82 30.11 0.0
14 10:35 Calm 10.00 Fair CLR 79.9 63.9 58% 81 30.11 0.0
14 10:15 Calm 10.00 Fair CLR 79 62.6 57% 80 30.1 0.0
14 09:55 SE 5 10.00 Fair CLR 78.8 62.6 58% 80 30.1 0.0
14 09:35 E 3 10.00 Fair CLR 78.1 61.9 58% 80 30.1 0.0
14 09:15 SE 3 10.00 Fair CLR 77.9 62.4 59% 80 30.09 0.0
14 08:55 E 3 10.00 Fair CLR 76.5 62.8 63% 78 30.09 0.0
14 08:35 E 5 10.00 Fair CLR 75.6 64.4 68% 77 30.08 0.0
14 08:15 E 3 10.00 Fair CLR 74.7 65.8 74% 30.08 0.0
14 07:50 Calm 10.00 Fair CLR 72.5 67.8 85% 30.08 0.0
14 07:35 Calm 5.00 Fog/Mist CLR 70.7 68 91% 30.08 0.0
14 07:15 Calm 5.00 Fog/Mist CLR 69.1 67.8 96% 30.08 0.0
14 06:55 Calm 4.00 Fog/Mist CLR 67.1 66.2 67.1 63.3 97% 30.08 0.0
14 06:35 Calm 4.00 Fog/Mist CLR 65.3 64.4 97% 30.07 0.0
14 06:15 Calm 4.00 Fog/Mist CLR 63.9 63 97% 30.06 0.0
14 05:55 Calm 4.00 Fog/Mist SCT032 64.4 63.5 97% 30.07 0.0
14 05:35 Calm 7.00 Mostly Cloudy BKN030 65.5 64.6 97% 30.07 0.0
14 05:15 Calm 5.00 Fog/Mist OVC030 65.5 64.6 97% 30.06 0.0
14 04:55 Calm 7.00 Mostly Cloudy BKN030 64.4 63.5 97% 30.06 0.0
14 04:35 Calm 7.00 Mostly Cloudy BKN030 64.8 63.9 97% 30.05 0.0
14 04:15 Calm 7.00 Overcast OVC030 63.5 62.6 97% 30.05 0.0
14 03:55 Calm 7.00 Mostly Cloudy BKN030 63.9 63 97% 30.05 0.0
14 03:35 Calm 5.00 Fog/Mist CLR 63.5 62.6 97% 30.05 0.0
14 03:15 Calm 4.00 Fog/Mist CLR 63.9 63.1 98% 30.05 0.0
14 02:55 Calm 7.00 Partly Cloudy SCT050 64.4 63.5 97% 30.05 0.0
14 02:35 Calm 7.00 Mostly Cloudy SCT035 BKN050 65.5 64.6 97% 30.06 0.0
14 02:15 Calm 7.00 Mostly Cloudy SCT033 BKN050 64.9 64 97% 30.06 0.0
14 01:55 Calm 4.00 Fog/Mist BKN050 64.8 63.9 97% 30.06 0.0
14 01:35 Calm 4.00 Fog/Mist SCT042 SCT050 65.5 64.6 97% 30.06 0.0
14 01:15 Calm 7.00 Fair CLR 66.2 65.5 98% 30.06 0.0
14 00:55 Calm 7.00 Fair CLR 67.1 66.2 77.2 65.8 97% 30.06 0.0
14 00:35 Calm 10.00 Fair CLR 66 64.6 95% 30.06 0.0
14 00:15 Calm 10.00 Fair CLR 68.2 66.4 94% 30.06 0.0
13 23:55 Calm 10.00 Partly Cloudy SCT049 69.6 67.5 93% 30.06 0.0
13 23:35 Calm 10.00 Overcast OVC049 70.3 67.5 91% 30.05 0.0
13 23:15 Calm 10.00 Overcast OVC049 70.7 68.2 92% 30.05 0.0
13 22:55 Calm 10.00 Overcast OVC049 71.1 68.4 91% 30.05 0.0
13 22:35 Calm 10.00 Overcast OVC049 71.1 69.4 95% 30.05 0.0
13 22:15 Calm 10.00 Overcast OVC049 70.7 68.9 94% 30.04 0.0
13 21:55 Calm 10.00 Overcast SCT043 OVC049 71.1 68.2 91% 30.04 0.0
13 21:35 Calm 5.00 Fog/Mist OVC043 70.7 68.4 92% 30.03 0.0
13 21:15 Calm 10.00 Mostly Cloudy BKN043 70.7 68.2 92% 30.02 0.0
13 20:55 Calm 10.00 Partly Cloudy SCT043 70.9 67.8 90% 30.02 0.0
13 20:35 NE 3 10.00 Partly Cloudy SCT040 72.5 66.6 82% 30.01 0.0
13 20:15 N 5 10.00 Partly Cloudy SCT033 SCT040 74.3 67.6 80% 30.01 0.0
13 19:55 N 3 10.00 Overcast OVC033 76.8 67.1 72% 79 30.02 0.0
13 19:35 Calm 10.00 Mostly Cloudy BKN033 BKN038 BKN050 77 67.8 73% 79 30.02 0.0
13 19:15 Calm 10.00 Mostly Cloudy BKN033 BKN050 77 67.5 73% 79 30.01 0.0
13 18:55 NW 3 10.00 Overcast OVC031 77.2 66.7 80.6 76.3 70% 79 30.02 0.0
13 18:35 Calm 10.00 Overcast OVC031 77.7 66.7 69% 80 30.01 0.0
13 18:15 Calm 10.00 Overcast OVC031 77.9 65.5 66% 80 30.01 0.0
13 17:55 Calm 10.00 Mostly Cloudy BKN031 78.1 66.4 67% 80 30.01 0.0
13 17:35 Calm 10.00 Partly Cloudy SCT031 78.3 66.2 67% 80 30.01 0.0
13 17:15 NW 3 10.00 Partly Cloudy SCT036 78.3 66.2 67% 80 30.01 0.0
13 16:55 Calm 10.00 Mostly Cloudy BKN035 78.3 65.7 65% 80 30.01 0.0
13 16:35 W 3 10.00 Overcast OVC037 77.7 64.8 64% 80 30.02 0.0
13 16:15 W 5 10.00 Overcast OVC037 78.4 64.9 63% 80 30.02 0.0
13 15:55 W 5 10.00 Overcast OVC037 77.9 65.5 66% 80 30.03 0.0
13 15:35 W 5 10.00 Overcast OVC035 78.4 65.3 64% 80 30.03 0.0
13 15:15 Calm 10.00 Mostly Cloudy BKN037 80.1 63.5 57% 82 30.03 0.0
13 14:55 Calm 10.00 Mostly Cloudy BKN037 79.7 61.9 55% 81 30.04 0.0
13 14:35 NW 3 10.00 Mostly Cloudy BKN037 BKN043 79.5 62.6 56% 81 30.04 0.0
13 14:15 SW 3 10.00 Fair CLR 77.7 60.6 56% 79 30.05 0.0
13 13:55 SW 5 10.00 Light Rain SCT043 SCT050 77 62.2 60% 79 30.06 0.0
13 13:35 W 6 10.00 Mostly Cloudy BKN050 76.6 64 65% 78 30.06 0.0
13 13:15 W 5 10.00 Mostly Cloudy BKN050 76.5 64.6 67% 78 30.06 0.0
13 12:55 SW 3 10.00 Partly Cloudy SCT050 77.9 64.2 78.4 69.1 63% 80 30.06 0.0
13 12:35 Calm 10.00 Mostly Cloudy BKN050 77.5 62.1 59% 79 30.06 0.0
13 12:15 Calm 10.00 Mostly Cloudy BKN050 78.1 62.6 59% 80 30.06 0.0
13 11:55 Calm 10.00 Fair CLR 77.5 62.4 60% 79 30.06 0.0
13 11:35 Calm 10.00 Fair CLR 77.2 62.6 61% 79 30.06 0.0
13 11:15 Calm 10.00 Fair CLR 77.7 59.7 54% 79 30.06 0.0
13 10:55 S 3 10.00 Fair CLR 77.2 61.3 58% 79 30.06 0.0
13 10:35 Calm 10.00 Fair CLR 77.2 60.3 56% 79 30.06 0.0
13 10:15 Calm 10.00 Fair CLR 77 60.3 56% 79 30.05 0.0
13 09:55 Calm 7.00 Fair CLR 76.6 60.6 58% 78 30.05 0.0
13 09:35 Calm 10.00 Fair CLR 76.5 62.2 62% 78 30.05 0.0
13 09:15 Calm 10.00 Fair CLR 75.6 61.7 62% 78 30.05 0.0
13 08:55 Calm 10.00 Fair CLR 74.7 64 70% 30.04 0.0
13 08:35 NE 3 10.00 Fair CLR 73.4 64 73% 30.04 0.0
13 08:15 Calm 10.00 Fair CLR 72.5 63.9 74% 30.05 0.0
13 07:55 Calm 10.00 Fair CLR 72 65.8 81% 30.05 0.0
13 07:35 Calm 10.00 Partly Cloudy SCT050 SCT065 70.3 65.8 86% 30.05 0.0
13 07:15 Calm 10.00 Mostly Cloudy SCT050 BKN065 69.8 66.4 89% 30.04 0.0
13 06:55 Calm 10.00 Overcast BKN050 OVC065 69.1 66.6 71.1 65.8 92% 30.04 0.0
13 06:35 Calm 5.00 Fog/Mist SCT050 OVC065 68 67.3 98% 30.04 0.0
13 06:15 Calm 5.00 Fog/Mist SCT050 OVC065 67.5 66.6 97% 30.04 0.0
13 05:55 Calm 4.00 Fog/Mist OVC065 67.3 66.4 97% 30.03 0.0
13 05:35 N 5 4.00 Fog/Mist OVC065 67.1 66.2 97% 30.02 0.0
13 05:15 NW 3 5.00 Fog/Mist BKN065 66.6 65.7 97% 30.02 0.0
13 04:35 Calm 7.00 Partly Cloudy SCT065 67.1 66.2 97% 30.02 0.0
13 04:15 NW 3 7.00 Partly Cloudy SCT065 66.9 66 97% 30.02 0.0
13 03:55 Calm 7.00 Fair CLR 67.5 66.6 97% 30.01 0.0
13 03:35 Calm 5.00 Fog/Mist CLR 67.3 66.4 97% 30.01 0.0
13 03:15 Calm 7.00 Fair CLR 68.9 68 97% 30 0.0
13 02:55 NW 3 7.00 Fair CLR 68.9 68 97% 30 0.0
13 02:35 W 5 7.00 Fair CLR 69.4 68.5 97% 30 0.0
13 02:15 W 3 10.00 Fair CLR 69.6 68.7 97% 29.99 0.0
13 01:55 Calm 7.00 Partly Cloudy SCT032 69.3 68.4 97% 29.99 0.0
13 01:35 Calm 5.00 Fog/Mist BKN032 69.4 68.5 97% 29.99 0.0
13 01:15 Calm 10.00 Fair CLR 70.9 70 97% 29.99 0.0
13 00:55 W 3 10.00 Fair CLR 70.7 69.8 80.8 70.7 97% 29.99 0.0
13 00:35 W 3 10.00 Fair CLR 71.8 70.5 96% 29.99 0.0
13 00:15 Calm 10.00 Fair CLR 71.8 70.7 96% 29.99 0.0
12 23:55 Calm 10.00 Fair CLR 72.1 70.7 95% 29.99 0.0
12 23:35 SW 3 10.00 Fair CLR 72.9 70.7 93% 29.99 0.0
12 23:15 W 5 10.00 Mostly Cloudy SCT045 BKN060 72.9 70.7 93% 29.99 0.0
12 22:55 W 5 10.00 Mostly Cloudy SCT043 SCT050 BKN060 73.8 70.9 91% 29.99 0.0
12 22:35 W 5 10.00 Overcast SCT031 BKN046 OVC060 74.8 71.2 89% 29.99 0.0
12 22:15 W 5 10.00 Overcast SCT029 BKN037 OVC044 75.2 71.6 89% 75 29.99 0.0
12 21:55 SW 5 5.00 Fog/Mist SCT029 SCT034 BKN039 74.7 71.4 90% 29.98 0.0
12 21:35 SW 5 10.00 Partly Cloudy SCT031 SCT041 75 70.9 87% 75 29.98 0.0
12 20:55 SW 5 10.00 Fair CLR 76.1 70.9 84% 77 29.95 0.0
12 20:35 SW 5 10.00 Fair CLR 76.3 70.7 83% 77 29.94 0.0
12 20:15 SW 3 10.00 Fair CLR 77.5 70 78% 79 29.93 0.0
12 19:55 W 3 10.00 Fair CLR 77.9 70.2 77% 80 29.93 0.0
12 19:35 W 5 10.00 Fair CLR 79.9 69.8 71% 83 29.94 0.0
12 19:15 W 7 10.00 Fair CLR 80.2 69.1 69% 83 29.94 0.0
12 18:55 W 6 10.00 Partly Cloudy SCT028 80.8 69.8 81.9 75.6 69% 84 29.93 0.0
12 18:35 W 6 10.00 Partly Cloudy SCT028 81 69.4 68% 84 29.93 0.0
12 18:15 W 3 10.00 Partly Cloudy SCT030 81 69.8 69% 84 29.92 0.0
12 17:55 W 7 10.00 Mostly Cloudy BKN030 BKN035 81.1 69.8 69% 85 29.92 0.0
12 17:35 Calm 10.00 Mostly Cloudy SCT030 BKN035 81 68.9 67% 84 29.92 0.0
12 17:15 NW 5 10.00 Partly Cloudy SCT032 SCT039 SCT044 81.3 68.5 65% 84 29.92 0.0
12 16:55 NW 7 10.00 Overcast BKN030 OVC039 80.6 68.7 67% 84 29.93 0.0
12 16:35 NW 12 G 17 10.00 Overcast SCT030 OVC039 80.6 68.2 66% 83 29.93 0.0
12 16:15 W 8 G 17 10.00 Overcast SCT026 BKN031 OVC037 79 68.7 71% 81 29.92 0.0
12 15:55 W 7 10.00 Mostly Cloudy SCT024 BKN030 79.3 69.3 71% 82 29.92 0.0
12 15:35 W 7 10.00 Mostly Cloudy SCT018 BKN027 79.3 71.1 76% 82 29.91 0.0
12 15:15 W 7 10.00 Overcast BKN018 OVC025 76.1 69.6 80% 77 29.92 0.0
12 14:55 W 12 10.00 Overcast BKN018 OVC025 76.3 69.1 78% 78 29.92 0.0
12 14:35 W 9 10.00 Overcast BKN020 OVC026 76.5 69.3 79% 78 29.93 0.0
12 14:15 SW 9 10.00 Overcast OVC020 76.8 69.1 77% 78 29.93 0.0
12 13:55 W 10 10.00 Overcast OVC022 77 68.7 76% 79 29.93 0.0
12 13:35 SW 10 10.00 Overcast OVC020 77.9 69.6 76% 80 29.94 0.0
12 13:15 W 13 10.00 Overcast BKN019 OVC025 76.1 68.5 78% 77 29.95 0.0
12 12:55 SW 12 10.00 Overcast SCT019 OVC025 76.5 68.4 77.9 68.5 76% 78 29.95 0.0
12 12:35 SW 12 10.00 Overcast SCT022 OVC030 77 68.2 74% 79 29.95 0.0
12 12:15 SW 10 10.00 Overcast SCT022 OVC028 77.7 68.2 73% 80 29.94 0.0
12 11:55 SW 8 10.00 Overcast OVC028 77.4 68 73% 79 29.94 0.0
12 11:35 SW 10 10.00 Overcast OVC024 76.8 67.5 73% 78 29.94 0.0
12 11:15 SW 10 10.00 Mostly Cloudy BKN022 BKN027 77.4 68.2 73% 79 29.93 0.0
12 10:55 W 12 10.00 Overcast BKN022 OVC027 76.8 67.8 74% 78 29.93 0.0
12 10:35 SW 6 10.00 Overcast OVC021 76.5 67.6 74% 78 29.93 0.0
12 10:15 SW 8 G 17 10.00 Mostly Cloudy BKN021 BKN070 76.8 67.8 74% 78 29.93 0.0
12 09:55 SW 9 10.00 Partly Cloudy SCT018 SCT070 76.6 67.3 73% 78 29.93 0.0
12 09:35 SW 9 10.00 Mostly Cloudy SCT018 BKN080 BKN100 75.6 67.6 77% 77 29.93 0.0
12 09:15 SW 6 10.00 Partly Cloudy SCT080 75.4 67.3 76% 77 29.93 0.0
12 08:55 S 7 10.00 Partly Cloudy SCT080 74.5 66.7 77% 29.93 0.0
12 08:35 S 7 10.00 Fair CLR 74.3 66.2 76% 29.93 0.0
12 08:15 Calm 10.00 Fair CLR 73 66 79% 29.92 0.0
12 07:55 Calm 10.00 Partly Cloudy SCT006 SCT010 71.8 67.6 87% 29.92 0.0
12 07:35 S 3 10.00 Partly Cloudy SCT005 70.7 68.2 92% 29.92 0.0
12 07:15 Calm 10.00 Fair CLR 69.8 68.4 95% 29.91 0.0
12 06:55 Calm 10.00 Mostly Cloudy BKN006 68.5 67.6 69.8 67.5 97% 29.91 0.0
12 06:35 W 5 10.00 Overcast OVC006 68.2 67.3 97% 29.92 0.0
12 06:15 Calm 10.00 Mostly Cloudy BKN006 68 67.1 97% 29.91 0.0
12 05:55 W 5 10.00 Partly Cloudy SCT006 67.6 66.7 97% 29.89 0.0
12 05:35 W 5 10.00 Mostly Cloudy BKN008 68 67.3 98% 29.89 0.0
12 05:15 W 8 10.00 Mostly Cloudy BKN008 68.5 67.6 97% 29.89 0.0
12 04:55 W 9 10.00 Fair CLR 68.4 67.5 97% 29.89 0.0
12 04:35 W 9 10.00 Fair CLR 68.4 67.5 97% 29.88 0.0
12 04:15 W 7 10.00 Fair CLR 68.5 67.6 97% 29.86 0.0
12 03:55 W 8 10.00 Partly Cloudy SCT120 69.3 67.6 95% 29.85 0.0
12 03:35 SW 5 10.00 Fair CLR 68.9 67.6 96% 29.83 0.0
12 03:15 W 8 10.00 Fair CLR 69.3 68 96% 29.84 0.0
12 02:55 S 6 10.00 Fair CLR 68.9 68 97% 29.83 0.0
12 02:35 S 9 10.00 Fair CLR 69.1 68 96% 29.84 0.0
12 02:15 S 6 10.00 Fair CLR 69.1 68 96% 29.85 0.0
12 01:55 SW 6 10.00 Fair CLR 68.9 68 97% 29.86 0.0
12 01:35 SW 5 10.00 Fair CLR 68.9 68 97% 29.86 0.0
12 01:15 SW 6 10.00 Fair CLR 69.3 68.2 96% 29.86 0.0
12 00:55 SW 5 10.00 Fair CLR 69.8 68.4 85.1 69.8 95% 29.87 0.0
12 00:35 SW 3 10.00 Partly Cloudy SCT120 69.8 68.2 95% 29.87 0.0
12 00:15 N 3 10.00 Light Rain SCT065 SCT085 SCT120 70.3 67.5 91% 29.86 0.0
11 23:55 NW 7 10.00 Light Rain SCT017 BKN060 OVC100 71.8 66.4 83% 29.88 0.0
11 23:35 W 10 G 35 10.00 Mostly Cloudy SCT017 SCT027 BKN032 73.6 66.2 78% 29.89 0.0
11 23:15 N 8 10.00 Mostly Cloudy BKN050 BKN065 76.3 69.6 80% 77 29.86 0.0
11 22:55 W 7 10.00 Mostly Cloudy SCT024 BKN050 BKN080 79 71.1 77% 82 29.85 0.0
11 22:35 S 13 10.00 Fair CLR 81.5 71.6 72% 86 29.83 0.0
11 22:15 S 13 G 18 10.00 Fair CLR 81.5 71.8 72% 86 29.82 0.0
11 21:55 S 13 10.00 Fair CLR 81.5 72.3 74% 86 29.84 0.0
11 21:35 S 9 10.00 Fair CLR 81.5 72.7 75% 86 29.85 0.0
11 21:15 S 10 10.00 Fair CLR 81.5 73 76% 87 29.84 0.0
11 20:55 S 10 10.00 Fair CLR 81.7 73 75% 87 29.84 0.0
11 20:35 S 8 10.00 Fair CLR 81.5 73 76% 87 29.84 0.0
11 20:15 S 8 10.00 Fair CLR 81.9 72.7 74% 87 29.85 0.0
11 19:55 S 7 10.00 Fair CLR 82.8 73 73% 89 29.85 0.0
Date Time (cdt) 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)