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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	M	M	M	M	M	M	M	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	0.00	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
2024	M	M	M	M	M	M	M	M	M	M	M	M
2025	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	4.9	6.7	8.6	9.1	8.8	8.0	7.3	6.7	6.9	3.2
2008	4.7	4.6	8.3	7.0	7.7	8.5	7.9	8.1	8.0	7.0	5.1	5.5
2009	3.7	6.0	6.8	5.3	8.0	7.9	8.0	7.0	6.6	6.3	6.1	3.3
2010	3.4	5.3	5.9	5.2	8.0	7.3	7.3	7.6	6.4	6.6	3.2	5.6
2011	3.5	3.0	4.3	5.6	6.9	7.0	6.7	7.6	5.5	4.8	3.8	4.6
2012	4.3	5.1	4.2	6.3	6.1	6.2	6.5	5.7	5.9	5.1	4.1	3.8
2013	3.3	3.7	4.7	5.2	6.6	5.7	4.9	6.0	5.2	4.5	5.2	3.9
2014	2.9	4.1	4.2	5.1	7.4	5.1	4.8	5.9	4.8	4.4	3.4	4.1
2015	4.1	4.3	5.3	6.0	6.3	5.6	6.9	5.7	5.7	4.3	3.9	2.5
2016	3.5	6.1	5.2	6.8	6.1	5.5	5.8	5.5	5.0	4.8	3.8	2.8
2017	4.4	4.9	5.3	6.4	6.1	6.0	6.7	6.1	5.3	5.4	4.7	4.2
2018	4.9	4.8	5.2	5.5	5.7	6.2	5.3	5.2	5.5	5.9	3.2	3.5
2019	4.4	3.5	5.6	6.0	6.9	5.9	5.5	5.8	5.5	5.2	3.8	3.9
2020	3.1	7.5	5.5	5.1	6.6	6.1	6.3	5.4	5.0	5.5	3.4	3.6
2021	3.6	4.4	4.8	6.0	7.2	6.0	6.2	6.2	4.8	5.3	3.0	2.9
2022	4.2	5.4	4.4	6.9	6.2	6.2	6.6	5.5	6.0	4.3	3.4	3.3
2023	3.9	5.3	6.8	6.2	6.2	6.1	7.0	6.4	5.1	4.8	4.6	3.9
2024	4.3	3.8	5.0	5.9	5.5	5.9	6.2	6.0	6.2	4.5	4.1	3.7
2025	4.4	3.5	5.2	5.9	6.0	5.7	5.7	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	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	50.00	M
2010	24.80	M	M	M	44.60	M	M	M	M	M	28.40	25.21
2011	25.19	M	M	51.80	47.30	54.50	59.90	66.80	62.30	51.57	47.06	30.66
2012	28.86	26.04	43.67	43.28	55.81	62.96	66.72	68.52	58.82	51.28	41.00	28.28
2013	30.61	26.86	35.31	46.76	49.59	59.96	69.74	66.61	59.30	50.17	35.72	31.54
2014	29.62	32.32	41.41	47.78	52.61	62.30	62.54	59.99	58.46	52.50	42.32	33.86
2015	30.86	31.04	39.84	47.96	54.94	63.80	73.75	67.30	55.40	50.12	48.92	42.45
2016	30.72	35.10	37.05	46.82	51.92	61.04	66.90	66.20	61.28	48.90	38.48	40.25
2017	26.43	36.76	45.35	47.18	56.33	66.14	66.95	68.00	53.66	55.52	36.56	27.82
2018	33.57	26.41	35.60	50.18	58.01	65.06	68.64	68.29	63.62	54.18	39.26	29.91
2019	26.02	38.04	41.12	43.40	49.07	68.24	69.10	66.26	59.42	53.37	35.72	32.41
2020	32.46	37.52	38.50	52.22	56.68	60.02	68.23	66.37	59.78	45.94	46.76	28.46
2021	24.63	36.18	37.92	40.70	50.46	66.32	65.56	63.30	61.58	50.87	36.68	29.56
2022	32.23	34.70	39.72	47.18	59.75	66.98	70.79	69.92	57.02	58.30	39.92	31.71
2023	30.26	38.69	42.34	45.02	55.46	65.48	68.00	67.30	64.82	56.10	36.86	32.35
2024	33.51	39.94	40.48	45.68	53.54	62.36	69.63	71.54	56.06	51.68	44.90	30.90
2025	31.94	35.79	40.48	50.84	54.82	69.62	65.06	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	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	46.40	M
2010	21.20	M	M	M	41.00	M	M	M	M	M	28.40	13.01
2011	3.97	M	M	50.00	36.50	52.70	50.00	40.60	37.82	26.48	21.50	15.51
2012	11.62	2.33	19.52	27.26	35.37	44.12	45.47	43.85	39.02	30.08	25.10	11.97
2013	11.45	4.36	16.85	27.98	35.14	40.16	43.61	42.22	37.28	35.37	22.04	14.00
2014	14.58	15.93	17.48	28.40	35.25	41.00	44.83	43.90	39.14	34.38	29.78	21.55
2015	13.40	8.92	21.43	26.54	36.82	43.28	48.37	46.23	38.30	31.42	20.18	13.59
2016	7.79	15.68	11.91	27.74	32.41	40.16	41.29	41.58	36.98	26.19	19.88	10.23
2017	0.65	12.52	21.43	22.40	33.97	40.82	41.75	41.93	33.14	26.31	16.22	7.03
2018	12.14	1.14	16.44	27.38	36.76	38.72	41.58	43.85	36.92	29.56	22.88	8.60
2019	2.50	6.41	15.22	26.96	30.49	39.68	42.22	44.14	35.84	31.71	20.36	11.50
2020	6.10	13.63	16.26	26.24	32.99	38.48	41.81	42.28	36.86	26.72	19.70	10.05
2021	2.04	9.24	10.81	20.60	29.91	39.86	42.80	40.59	36.62	25.32	16.82	6.92
2022	4.48	6.61	13.48	24.50	36.88	41.06	42.80	42.63	35.48	32.46	20.48	12.08
2023	7.73	12.14	21.49	25.10	36.18	41.00	42.57	43.21	39.56	31.71	18.50	13.25
2024	7.85	19.71	22.25	25.28	35.02	40.70	45.30	44.72	36.80	32.06	18.14	9.99
2025	7.73	11.88	19.69	28.04	34.15	42.50	40.53	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	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	48.20	M
2010	23.00	M	M	M	42.80	M	M	M	M	M	28.40	19.11
2011	14.58	M	M	50.90	41.90	53.60	54.95	53.70	50.06	39.03	34.28	23.09
2012	20.24	14.19	31.59	35.27	45.59	53.54	56.10	56.18	48.92	40.68	33.05	20.13
2013	21.03	15.61	26.08	37.37	42.36	50.06	56.68	54.41	48.29	42.77	28.88	22.77
2014	22.10	24.12	29.45	38.09	43.93	51.65	53.69	51.95	48.80	43.44	36.05	27.70
2015	22.13	19.98	30.64	37.25	45.88	53.54	61.06	56.76	46.85	40.77	34.55	28.02
2016	19.25	25.39	24.48	37.28	42.16	50.60	54.09	53.89	49.13	37.55	29.18	25.24
2017	13.54	24.64	33.39	34.79	45.15	53.48	54.35	54.96	43.40	40.91	26.39	17.43
2018	22.85	13.77	26.02	38.78	47.39	51.89	55.11	56.07	50.27	41.87	31.07	19.25
2019	14.26	22.23	28.17	35.18	39.78	53.96	55.66	55.20	47.63	42.54	28.04	21.95
2020	19.28	25.58	27.38	39.23	44.83	49.25	55.02	54.33	48.32	36.33	33.23	19.25
2021	13.33	22.71	24.36	30.65	40.19	53.09	54.18	51.95	49.10	38.10	26.75	18.24
2022	18.35	20.65	26.60	35.84	48.32	54.02	56.79	56.27	46.25	45.38	30.20	21.90
2023	18.99	25.41	31.91	35.06	45.82	53.24	55.28	55.25	52.19	43.90	27.68	22.80
2024	20.68	29.83	31.36	35.48	44.28	51.53	57.46	58.13	46.43	41.87	31.52	20.45
2025	19.84	23.84	30.08	39.44	44.48	56.06	52.79	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	76.5%	66.9%	71.5%	78.7%	71.3%	78.3%	75.5%	75.6%	76.7%	79.0%
2008	82.4%	72.9%	67.8%	77.0%	71.7%	76.2%	77.5%	77.4%	77.1%	79.1%	85.1%	84.5%
2009	81.9%	78.3%	72.3%	75.2%	67.8%	70.8%	73.6%	75.7%	76.5%	74.4%	80.1%	85.8%
2010	80.6%	77.4%	71.9%	70.9%	75.9%	75.1%	73.1%	80.2%	78.9%	80.6%	85.7%	77.5%
2011	78.6%	73.2%	71.7%	66.2%	71.0%	78.0%	76.1%	74.6%	78.6%	75.4%	72.0%	81.6%
2012	78.3%	70.9%	71.6%	75.2%	69.6%	77.3%	75.8%	75.9%	78.3%	81.9%	80.3%	81.4%
2013	76.5%	72.4%	73.4%	75.3%	76.1%	74.1%	74.1%	75.6%	76.0%	89.6%	87.7%	83.7%
2014	94.1%	90.7%	75.7%	74.7%	73.4%	76.8%	84.0%	85.9%	85.1%	87.3%	94.6%	84.7%
2015	79.4%	81.4%	75.0%	67.2%	78.8%	77.9%	68.2%	77.9%	78.9%	80.2%	68.0%	74.6%
2016	80.4%	77.4%	70.0%	73.5%	74.4%	80.3%	77.4%	79.6%	83.1%	79.7%	88.3%	78.4%
2017	70.9%	75.0%	68.7%	63.8%	70.0%	73.2%	73.4%	75.8%	79.3%	68.0%	77.7%	80.3%
2018	81.9%	74.8%	75.0%	73.2%	75.1%	70.9%	73.6%	78.8%	76.9%	78.0%	85.7%	82.9%
2019	73.6%	72.3%	66.4%	74.2%	69.3%	70.2%	74.4%	82.0%	81.5%	84.0%	90.8%	83.9%
2020	76.6%	67.4%	74.1%	66.4%	70.8%	78.8%	74.4%	81.7%	83.9%	83.2%	78.1%	89.2%
2021	83.2%	81.1%	69.8%	69.2%	70.6%	66.0%	77.1%	77.0%	80.5%	74.3%	88.5%	83.2%
2022	71.1%	68.9%	66.8%	66.5%	76.3%	78.9%	69.9%	72.4%	75.2%	79.8%	83.5%	84.8%
2023	76.9%	67.5%	71.0%	67.7%	74.9%	72.2%	76.7%	75.1%	81.4%	80.4%	81.8%	85.4%
2024	75.9%	79.9%	77.7%	72.1%	78.9%	79.6%	78.6%	76.4%	79.4%	88.6%	73.0%	79.1%
2025	80.5%	78.9%	74.4%	69.9%	74.4%	74.0%	76.2%	M	M	M	M	M

Monthly Plots

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