Grinnell Weather

Daily / Monthly Weather History From This Station

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August 2022 July 2022 June 2022 May 2022 April 2022 March 2022 February 2022 January 2022 December 2021 November 2021 October 2021 September 2021 August 2021 July 2021 June 2021 May 2021 April 2021 March 2021 February 2021 January 2021 December 2020 November 2020 October 2020 September 2020 August 2020 July 2020 June 2020 May 2020 April 2020 March 2020 February 2020 January 2020 December 2019 November 2019 October 2019 September 2019 August 2019 July 2019 June 2019 May 2019 April 2019 March 2019 February 2019 January 2019 December 2018 November 2018 October 2018 September 2018 August 2018 July 2018 June 2018 May 2018 April 2018 March 2018 February 2018 January 2018 December 2017 November 2017 October 2017 September 2017 August 2017 July 2017 June 2017 May 2017 April 2017 March 2017 February 2017 January 2017 December 2016 November 2016 October 2016 September 2016 August 2016 July 2016 June 2016 May 2016 April 2016 March 2016 February 2016 January 2016 December 2015 November 2015 October 2015 September 2015 August 2015 July 2015 June 2015 May 2015 April 2015 March 2015 February 2015 January 2015 December 2014 November 2014 October 2014 September 2014 August 2014 July 2014 June 2014 May 2014 April 2014 March 2014 February 2014 January 2014 December 2013 November 2013 October 2013 September 2013 August 2013 July 2013 June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 December 2012 November 2012 October 2012 September 2012 August 2012 July 2012 June 2012 May 2012 April 2012 March 2012 February 2012 January 2012 December 2011 November 2011 October 2011 September 2011 August 2011 July 2011 June 2011 May 2011 April 2011 March 2011 February 2011 January 2011 December 2010 November 2010 October 2010 September 2010 August 2010 July 2010 June 2010 May 2010 April 2010 March 2010

Daily Report for the month of August 2022

1 August Average and Extremes
Average temperature	75.8°F
Average humidity	79%
Average dewpoint	68.3°F
Average barometer	29.9 in.
Average windspeed	4.7 mph
Average gustspeed	6.7 mph
Average direction	273° (W)
Rainfall for month	0.00 in.
Rainfall for year	12.69 in.
Maximum rain per minute	0.00 in. on 01 at 00:00
Maximum temperature	86.1°F on 01 at 17:28
Minimum temperature	65.7°F on 01 at 06:30
Maximum humidity	92% on 01 at 04:43
Minimum humidity	56% on 01 at 16:44
Maximum pressure	29.954 in. on 01 at 13:02
Minimum pressure	29.843 in. on 01 at 00:35
Maximum windspeed	12.7 mph on 00 at 00:30
Maximum gust speed	19.6 mph from 182 °(S) on 01 at 00:12
Maximum heat index	91.7°F on 01 at 17:27

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2 August Average and Extremes
Average temperature	81.5°F
Average humidity	77%
Average dewpoint	73.2°F
Average barometer	29.8 in.
Average windspeed	7.1 mph
Average gustspeed	10.1 mph
Average direction	169° (S)
Rainfall for month	0.02 in.
Rainfall for year	12.71 in.
Maximum rain per minute	0.01 in. on 02 at 03:44
Maximum temperature	94.1°F on 02 at 15:32
Minimum temperature	68.9°F on 02 at 02:02
Maximum humidity	91% on 02 at 02:38
Minimum humidity	55% on 02 at 16:05
Maximum pressure	29.983 in. on 02 at 03:24
Minimum pressure	29.708 in. on 02 at 23:37
Maximum windspeed	21.9 mph on 02 at 16:51
Maximum gust speed	28.8 mph from 175 °(S) on 02 at 17:31
Maximum heat index	109.6°F on 02 at 15:08

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3 August Average and Extremes
Average temperature	81.3°F
Average humidity	77%
Average dewpoint	73.3°F
Average barometer	29.8 in.
Average windspeed	8.3 mph
Average gustspeed	11.4 mph
Average direction	193° (SSW)
Rainfall for month	0.10 in.
Rainfall for year	12.79 in.
Maximum rain per minute	0.02 in. on 03 at 08:42
Maximum temperature	88.9°F on 03 at 17:43
Minimum temperature	73.9°F on 03 at 23:59
Maximum humidity	88% on 03 at 01:30
Minimum humidity	67% on 03 at 23:03
Maximum pressure	29.909 in. on 03 at 23:08
Minimum pressure	29.674 in. on 03 at 06:50
Maximum windspeed	15.0 mph on 03 at 09:28
Maximum gust speed	26.5 mph from 198 °(SSW) on 03 at 08:11
Maximum heat index	102.8°F on 03 at 18:35

24 Hour Graph of this day is not available (20220803.gif)

4 August Average and Extremes
Average temperature	73.3°F
Average humidity	76%
Average dewpoint	64.9°F
Average barometer	30.0 in.
Average windspeed	5.5 mph
Average gustspeed	7.7 mph
Average direction	26° (NNE)
Rainfall for month	0.10 in.
Rainfall for year	12.79 in.
Maximum rain per minute	0.00 in. on 04 at 23:59
Maximum temperature	84.4°F on 04 at 16:04
Minimum temperature	63.2°F on 04 at 06:32
Maximum humidity	90% on 04 at 23:59
Minimum humidity	53% on 04 at 15:38
Maximum pressure	30.054 in. on 04 at 23:55
Minimum pressure	29.905 in. on 04 at 00:02
Maximum windspeed	11.5 mph on 04 at 09:16
Maximum gust speed	16.1 mph from 042 °(NE) on 04 at 00:15
Maximum heat index	87.6°F on 04 at 16:04

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5 August Average and Extremes
Average temperature	74.5°F
Average humidity	79%
Average dewpoint	66.9°F
Average barometer	30.0 in.
Average windspeed	2.8 mph
Average gustspeed	4.2 mph
Average direction	109° (ESE)
Rainfall for month	0.10 in.
Rainfall for year	12.79 in.
Maximum rain per minute	0.00 in. on 05 at 23:59
Maximum temperature	88.5°F on 05 at 16:56
Minimum temperature	60.1°F on 05 at 06:20
Maximum humidity	93% on 05 at 07:03
Minimum humidity	51% on 05 at 15:23
Maximum pressure	30.080 in. on 05 at 07:38
Minimum pressure	29.952 in. on 05 at 20:17
Maximum windspeed	10.4 mph on 05 at 16:19
Maximum gust speed	15.0 mph from 173 °(S) on 05 at 13:19
Maximum heat index	96.5°F on 05 at 17:49

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6 August Average and Extremes
Average temperature	81.8°F
Average humidity	80%
Average dewpoint	74.4°F
Average barometer	30.0 in.
Average windspeed	6.0 mph
Average gustspeed	8.4 mph
Average direction	172° (S)
Rainfall for month	0.10 in.
Rainfall for year	12.79 in.
Maximum rain per minute	0.00 in. on 06 at 23:59
Maximum temperature	95.5°F on 06 at 16:25
Minimum temperature	70.0°F on 06 at 00:13
Maximum humidity	90% on 06 at 07:28
Minimum humidity	55% on 06 at 17:04
Maximum pressure	30.001 in. on 06 at 01:18
Minimum pressure	29.885 in. on 06 at 18:41
Maximum windspeed	15.0 mph on 06 at 16:58
Maximum gust speed	23.0 mph from 173 °(S) on 06 at 15:49
Maximum heat index	114.2°F on 06 at 16:26

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7 August Average and Extremes
Average temperature	80.5°F
Average humidity	84%
Average dewpoint	75.3°F
Average barometer	30.0 in.
Average windspeed	3.5 mph
Average gustspeed	4.9 mph
Average direction	160° (SSE)
Rainfall for month	0.20 in.
Rainfall for year	12.89 in.
Maximum rain per minute	0.04 in. on 07 at 06:16
Maximum temperature	87.7°F on 07 at 11:23
Minimum temperature	74.7°F on 07 at 06:59
Maximum humidity	89% on 07 at 21:07
Minimum humidity	73% on 07 at 11:24
Maximum pressure	30.013 in. on 07 at 10:39
Minimum pressure	29.891 in. on 07 at 19:11
Maximum windspeed	11.5 mph on 07 at 20:09
Maximum gust speed	16.1 mph from 278 °(W) on 07 at 20:09
Maximum heat index	101.9°F on 07 at 11:18

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8 August Average and Extremes
Average temperature	72.3°F
Average humidity	79%
Average dewpoint	65.1°F
Average barometer	30.0 in.
Average windspeed	6.5 mph
Average gustspeed	9.0 mph
Average direction	357° (N)
Rainfall for month	0.20 in.
Rainfall for year	12.89 in.
Maximum rain per minute	0.00 in. on 08 at 23:59
Maximum temperature	77.7°F on 08 at 00:05
Minimum temperature	64.5°F on 08 at 23:59
Maximum humidity	89% on 08 at 08:31
Minimum humidity	62% on 08 at 17:50
Maximum pressure	30.092 in. on 08 at 23:44
Minimum pressure	29.900 in. on 08 at 01:59
Maximum windspeed	13.8 mph on 08 at 07:50
Maximum gust speed	19.6 mph from 306 °(NW) on 08 at 15:35
Maximum heat index	79.7°F on 08 at 00:05

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9 August Average and Extremes
Average temperature	69.6°F
Average humidity	76%
Average dewpoint	60.9°F
Average barometer	30.1 in.
Average windspeed	2.7 mph
Average gustspeed	3.9 mph
Average direction	49° (NE)
Rainfall for month	0.20 in.
Rainfall for year	12.89 in.
Maximum rain per minute	0.00 in. on 09 at 23:59
Maximum temperature	83.0°F on 09 at 16:07
Minimum temperature	57.9°F on 09 at 06:32
Maximum humidity	91% on 09 at 07:37
Minimum humidity	49% on 09 at 17:29
Maximum pressure	30.163 in. on 09 at 11:27
Minimum pressure	30.072 in. on 09 at 19:07
Maximum windspeed	8.1 mph on 09 at 14:30
Maximum gust speed	11.5 mph from 069 °(ENE) on 09 at 13:36
Maximum heat index	84.1°F on 09 at 17:06

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10 August Average and Extremes
Average temperature	72.3°F
Average humidity	73%
Average dewpoint	62.2°F
Average barometer	30.2 in.
Average windspeed	2.2 mph
Average gustspeed	3.1 mph
Average direction	86° (E)
Rainfall for month	0.20 in.
Rainfall for year	12.89 in.
Maximum rain per minute	0.00 in. on 10 at 23:59
Maximum temperature	86.6°F on 10 at 16:00
Minimum temperature	58.2°F on 10 at 05:23
Maximum humidity	91% on 10 at 06:46
Minimum humidity	42% on 10 at 15:51
Maximum pressure	30.220 in. on 10 at 08:07
Minimum pressure	30.122 in. on 10 at 19:31
Maximum windspeed	8.1 mph on 10 at 16:57
Maximum gust speed	11.5 mph from 032 °(NNE) on 10 at 16:56
Maximum heat index	87.8°F on 10 at 15:59

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11 August Average and Extremes
Average temperature	71.9°F
Average humidity	82%
Average dewpoint	66.0°F
Average barometer	30.2 in.
Average windspeed	4.0 mph
Average gustspeed	5.4 mph
Average direction	57° (ENE)
Rainfall for month	0.44 in.
Rainfall for year	13.13 in.
Maximum rain per minute	0.02 in. on 11 at 14:34
Maximum temperature	85.0°F on 11 at 12:27
Minimum temperature	63.8°F on 11 at 06:01
Maximum humidity	89% on 11 at 23:59
Minimum humidity	63% on 11 at 13:13
Maximum pressure	30.186 in. on 11 at 08:47
Minimum pressure	30.133 in. on 11 at 17:35
Maximum windspeed	15.0 mph on 11 at 14:29
Maximum gust speed	19.6 mph from 046 °(NE) on 11 at 18:09
Maximum heat index	91.9°F on 11 at 13:42

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12 August Average and Extremes
Average temperature	70.9°F
Average humidity	75%
Average dewpoint	62.4°F
Average barometer	30.2 in.
Average windspeed	5.1 mph
Average gustspeed	7.9 mph
Average direction	142° (SE)
Rainfall for month	0.44 in.
Rainfall for year	13.13 in.
Maximum rain per minute	0.00 in. on 12 at 23:59
Maximum temperature	77.7°F on 12 at 17:08
Minimum temperature	65.8°F on 12 at 00:01
Maximum humidity	89% on 12 at 00:41
Minimum humidity	60% on 12 at 16:07
Maximum pressure	30.234 in. on 12 at 12:09
Minimum pressure	30.043 in. on 12 at 22:19
Maximum windspeed	13.8 mph on 12 at 13:32
Maximum gust speed	24.2 mph from 070 °(ENE) on 12 at 12:47
Maximum heat index	79.5°F on 12 at 17:07

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13 August Average and Extremes
Average temperature	73.5°F
Average humidity	80%
Average dewpoint	66.7°F
Average barometer	30.0 in.
Average windspeed	9.2 mph
Average gustspeed	12.4 mph
Average direction	216° (SW)
Rainfall for month	0.44 in.
Rainfall for year	13.13 in.
Maximum rain per minute	0.00 in. on 13 at 23:59
Maximum temperature	88.2°F on 13 at 14:09
Minimum temperature	64.6°F on 13 at 01:14
Maximum humidity	89% on 13 at 01:56
Minimum humidity	56% on 13 at 14:03
Maximum pressure	30.057 in. on 13 at 00:54
Minimum pressure	29.911 in. on 13 at 16:18
Maximum windspeed	16.1 mph on 13 at 11:18
Maximum gust speed	25.3 mph from 180 °(S) on 13 at 09:13
Maximum heat index	95.7°F on 13 at 16:09

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14 August Average and Extremes
Average temperature	68.0°F
Average humidity	84%
Average dewpoint	62.8°F
Average barometer	30.0 in.
Average windspeed	5.7 mph
Average gustspeed	7.9 mph
Average direction	9° (N)
Rainfall for month	0.44 in.
Rainfall for year	13.13 in.
Maximum rain per minute	0.00 in. on 14 at 23:59
Maximum temperature	73.7°F on 14 at 14:42
Minimum temperature	61.7°F on 14 at 23:39
Maximum humidity	89% on 14 at 23:59
Minimum humidity	73% on 14 at 14:44
Maximum pressure	30.053 in. on 14 at 21:18
Minimum pressure	29.956 in. on 14 at 03:19
Maximum windspeed	11.5 mph on 14 at 16:56
Maximum gust speed	16.1 mph from 043 °(NE) on 14 at 16:52
Maximum heat index	74.9°F on 14 at 14:44

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15 August Average and Extremes
Average temperature	64.5°F
Average humidity	86%
Average dewpoint	60.1°F
Average barometer	30.1 in.
Average windspeed	2.7 mph
Average gustspeed	3.9 mph
Average direction	62° (ENE)
Rainfall for month	0.54 in.
Rainfall for year	13.23 in.
Maximum rain per minute	0.01 in. on 15 at 22:37
Maximum temperature	73.5°F on 15 at 12:39
Minimum temperature	56.2°F on 15 at 05:47
Maximum humidity	92% on 15 at 05:08
Minimum humidity	73% on 15 at 12:42
Maximum pressure	30.127 in. on 15 at 21:52
Minimum pressure	30.041 in. on 15 at 00:52
Maximum windspeed	8.1 mph on 15 at 11:17
Maximum gust speed	12.7 mph from 036 °(NE) on 15 at 09:37
Maximum heat index	74.8°F on 15 at 12:42

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16 August Average and Extremes
Average temperature	67.6°F
Average humidity	77%
Average dewpoint	59.9°F
Average barometer	30.1 in.
Average windspeed	5.1 mph
Average gustspeed	6.7 mph
Average direction	58° (ENE)
Rainfall for month	0.54 in.
Rainfall for year	13.23 in.
Maximum rain per minute	0.00 in. on 16 at 23:59
Maximum temperature	80.1°F on 16 at 15:21
Minimum temperature	56.9°F on 16 at 06:11
Maximum humidity	86% on 16 at 23:59
Minimum humidity	57% on 16 at 17:07
Maximum pressure	30.146 in. on 16 at 08:48
Minimum pressure	30.089 in. on 16 at 01:02
Maximum windspeed	15.0 mph on 16 at 16:38
Maximum gust speed	17.3 mph from 063 °(ENE) on 16 at 16:38
Maximum heat index	82.1°F on 16 at 15:21

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17 August Average and Extremes
Average temperature	68.5°F
Average humidity	72%
Average dewpoint	58.3°F
Average barometer	30.1 in.
Average windspeed	2.8 mph
Average gustspeed	3.7 mph
Average direction	53° (NE)
Rainfall for month	0.54 in.
Rainfall for year	13.23 in.
Maximum rain per minute	0.00 in. on 17 at 23:59
Maximum temperature	81.2°F on 17 at 16:30
Minimum temperature	56.2°F on 17 at 06:37
Maximum humidity	86% on 17 at 04:13
Minimum humidity	47% on 17 at 15:45
Maximum pressure	30.198 in. on 17 at 11:21
Minimum pressure	30.094 in. on 17 at 20:11
Maximum windspeed	9.2 mph on 17 at 16:31
Maximum gust speed	11.5 mph from 055 °(NE) on 17 at 16:31
Maximum heat index	82.2°F on 17 at 16:29

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Average and Extremes for Month of August 2022 up to day 17
Average temperature	73.4°F
Average humidity	79%
Average dewpoint	65.9°F
Average barometer	30.022 in.
Average windspeed	4.9 mph
Average gustspeed	6.9 mph
Average direction	94° (E)
Rainfall for month	0.540 in.
Rainfall for year	13.310 in.
Maximum rain per minute	0.040 in on 07 at 06:16
Maximum temperature	95.5°F on 06 at 16:25
Minimum temperature	56.2°F on 17 at 06:37
Maximum humidity	93% on 05 at 07:03
Minimum humidity	42% on 10 at 15:51
Maximum pressure	30.23 in. on 12 at 12:09
Minimum pressure	29.67 in. on 03 at 06:50
Maximum windspeed	21.9 mph from 175°(S) on 02 at 16:51
Maximum gust speed	28.8 mph from 158°(SSE) on 02 at 17:31
Maximum heat index	114.2°F on 06 at 16:26
Avg daily max temp	84.2°F
Avg daily min temp	63.7°F
Growing degrees days	425.3 GDD

Day, Sunshine Hours, ET, Max Solar, UV
01 09:06hrs	ET :0.232 in.	997.0 W/m²	8.9 uv
02 00:00hrs	ET :0.303 in.	830.0 W/m²	7.9 uv
03 01:36hrs	ET :0.228 in.	937.0 W/m²	8.3 uv
04 10:06hrs	ET :0.256 in.	872.0 W/m²	8.8 uv
05 07:30hrs	ET :0.201 in.	898.0 W/m²	8.7 uv
06 02:18hrs	ET :0.240 in.	933.0 W/m²	8.0 uv
07 00:24hrs	ET :0.134 in.	949.0 W/m²	7.7 uv
08 06:54hrs	ET :0.217 in.	1071.0 W/m²	9.0 uv
09 09:30hrs	ET :0.224 in.	960.0 W/m²	8.7 uv
10 10:06hrs	ET :0.228 in.	993.0 W/m²	8.5 uv
11 03:24hrs	ET :0.177 in.	986.0 W/m²	7.8 uv
12 04:00hrs	ET :0.185 in.	900.0 W/m²	8.1 uv
13 03:12hrs	ET :0.268 in.	1088.0 W/m²	8.3 uv
14 00:12hrs	ET :0.122 in.	689.0 W/m²	8.2 uv
15 01:18hrs	ET :0.091 in.	765.0 W/m²	5.4 uv
16 06:00hrs	ET :0.197 in.	1102.0 W/m²	8.4 uv
17 08:36hrs	ET :0.181 in.	904.0 W/m²	7.2 uv

Daily Rain Totals

00.02 in. on 2

00.08 in. on 3

00.10 in. on 7

00.24 in. on 11

00.10 in. on 15