IEM :: Monthly Summaries

The following tables present IEM computed monthly data summaries based on daily data provided by or computed for the IEM. A download interface exists for the daily summary information. The climatology is provided by the nearest NCEI climate station () within the current 1991-2020 dataset.

To load shown data into Microsoft Excel, highlight the table information with your mouse and then copy/paste into Excel.

Precipitation Totals [inch]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	M	M
2011	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2012	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	0.00	0.00	M	M	M	M	M
2017	M	M	M	M	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	M	M	M	M	5.4	5.5	5.0	6.3	6.7
2008	6.8	5.8	8.7	6.2	7.0	5.8	6.3	5.8	6.0	4.9	5.6	5.7
2009	4.9	5.8	6.3	5.7	6.2	6.2	5.6	4.5	5.3	5.2	6.1	5.9
2010	6.0	6.5	7.2	6.0	5.6	5.4	4.4	5.3	4.8	5.2	6.4	5.8
2011	7.3	8.3	8.5	8.1	7.6	8.2	7.4	7.0	7.0	8.0	6.4	11.1
2012	7.5	6.8	5.1	5.6	5.5	5.0	5.5	4.8	4.4	4.2	4.5	6.2
2013	6.0	6.0	6.9	6.4	5.5	5.8	5.8	4.4	5.2	5.2	5.8	5.1
2014	5.2	5.9	5.2	5.5	6.1	5.7	4.9	4.8	4.5	M	5.3	7.0
2015	6.9	5.4	6.8	5.5	5.5	6.4	6.5	5.2	5.5	4.4	6.6	4.7
2016	5.9	7.6	6.3	5.8	5.9	4.9	5.0	4.7	4.1	4.2	5.0	4.8
2017	5.6	6.0	6.6	3.1	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	M	M	M	M	72.85	64.64	57.26	44.66	38.97
2008	45.24	48.01	48.43	55.58	72.53	75.32	77.64	74.62	63.27	56.62	48.02	39.14
2009	M	35.60	M	51.80	M	M	M	M	M	M	55.40	M
2010	41.00	M	M	M	53.60	M	M	61.70	M	M	44.60	31.83
2011	40.99	42.86	55.29	68.30	73.39	73.70	72.55	75.91	71.78	59.93	47.90	45.53
2012	43.03	36.41	56.10	57.20	71.08	70.88	74.78	77.48	69.20	56.27	47.54	42.28
2013	37.98	36.95	43.79	57.50	62.25	71.90	81.06	77.58	66.38	59.58	45.68	44.25
2014	44.48	48.71	57.78	64.34	65.97	74.72	79.44	71.19	68.62	M	47.03	41.17
2015	40.59	40.87	52.61	61.16	67.54	73.70	82.69	88.06	65.78	55.86	52.60	49.94
2016	42.10	44.97	48.37	57.14	67.25	72.68	78.22	77.06	75.44	55.28	45.98	39.94
2017	34.94	47.30	57.43	62.00	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	M	M	M	M	58.30	48.98	43.70	37.22	33.63
2008	37.52	33.92	38.50	41.90	55.46	59.36	61.44	59.75	48.40	44.89	40.16	31.19
2009	M	35.60	M	50.00	M	M	M	M	M	M	53.60	M
2010	39.20	M	M	M	51.80	M	M	60.80	M	M	42.80	24.39
2011	31.69	32.46	36.48	45.90	48.84	57.57	56.32	57.54	51.32	41.70	34.40	36.24
2012	33.34	23.56	36.99	40.79	49.94	53.90	57.32	58.04	48.32	40.33	37.82	34.44
2013	31.07	29.24	29.33	41.90	46.75	54.50	63.53	58.25	52.58	48.90	39.14	37.17
2014	37.81	38.49	39.20	46.52	50.64	57.68	62.48	56.50	54.78	M	41.99	36.88
2015	35.08	32.64	36.65	40.40	50.75	57.56	64.52	64.79	50.24	44.66	44.47	42.74
2016	35.72	36.84	37.11	41.24	51.57	59.36	62.95	58.19	55.82	44.89	37.82	34.36
2017	27.14	36.18	40.54	44.60	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M

Average Daily Temperature (high+low)/2 [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	M	M	M	M	65.57	56.81	50.48	40.94	36.30
2008	41.38	40.97	43.47	48.74	63.99	67.34	69.54	67.19	55.83	50.75	44.09	35.16
2009	M	35.60	M	50.90	M	M	M	M	M	M	54.50	M
2010	40.10	M	M	M	52.70	M	M	61.25	M	M	43.70	28.11
2011	36.34	37.66	45.89	57.10	61.11	65.63	64.44	66.72	61.55	50.81	41.15	40.88
2012	38.18	29.98	46.55	49.00	60.51	62.39	66.05	67.76	58.76	48.30	42.68	38.36
2013	34.53	33.09	36.56	49.70	54.50	63.20	72.30	67.91	59.48	54.24	42.41	40.71
2014	41.15	43.60	48.49	55.43	58.30	66.20	70.96	63.85	61.70	M	44.51	39.03
2015	37.84	36.76	44.63	50.78	59.15	65.63	73.60	76.42	58.01	50.26	48.53	46.34
2016	38.91	40.91	42.74	49.19	59.41	66.02	70.58	67.62	65.63	50.09	41.90	37.15
2017	31.04	41.74	48.98	53.30	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M

Average Relative Humidity [%]

This value is computed via a simple average of available observations weighted by the duration between observations.

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	M	M	M	M	79.8%	84.5%	87.9%	92.2%	92.6%
2008	88.6%	85.4%	83.6%	84.5%	66.9%	74.1%	69.5%	76.4%	84.3%	91.9%	92.2%	94.7%
2009	89.2%	88.7%	82.8%	71.4%	78.7%	78.0%	77.4%	72.7%	82.6%	88.5%	89.7%	91.3%
2010	92.5%	84.7%	70.9%	63.7%	79.8%	68.9%	68.5%	79.6%	81.2%	82.4%	85.5%	88.5%
2011	85.9%	82.5%	64.2%	59.2%	52.6%	67.9%	70.5%	73.3%	75.9%	81.1%	89.2%	87.2%
2012	83.5%	74.2%	70.5%	69.5%	67.0%	74.8%	71.6%	66.9%	74.2%	84.7%	86.2%	84.6%
2013	84.2%	80.5%	68.1%	66.8%	78.3%	69.6%	61.2%	66.5%	76.2%	80.5%	83.7%	83.0%
2014	81.9%	75.4%	66.6%	66.6%	68.2%	59.5%	67.6%	73.7%	78.4%	M	86.5%	84.8%
2015	83.0%	77.5%	69.2%	61.5%	62.7%	61.2%	53.5%	55.8%	75.7%	85.2%	86.8%	89.8%
2016	87.0%	81.4%	76.6%	73.5%	71.0%	78.6%	67.9%	72.1%	73.4%	87.9%	85.4%	89.3%
2017	81.1%	79.5%	71.3%	76.9%	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M