View Monthly Charts

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	0.00	0.00	0.00
2008	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2009	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
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	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	M	M	M	M	M	M	M	9.3	7.8	7.8
2008	8.2	8.0	7.0	9.4	7.9	6.7	6.0	6.6	7.2	7.3	7.4	7.9
2009	6.1	8.2	7.2	7.7	8.6	5.8	6.5	6.6	6.5	7.8	7.3	6.9
2010	8.0	9.2	7.4	8.5	7.3	6.3	5.6	7.3	8.6	7.2	7.8	7.8
2011	8.0	8.6	8.0	6.9	7.9	7.8	5.1	6.1	7.3	6.7	8.4	7.5
2012	8.4	6.7	8.0	6.7	7.8	5.9	5.0	6.6	5.8	7.8	8.2	6.4
2013	7.0	8.2	8.4	8.2	8.1	5.5	5.5	4.8	6.7	6.3	8.4	7.1
2014	7.5	7.6	7.7	8.6	6.7	7.1	5.4	5.8	6.4	8.1	8.7	7.9
2015	7.9	8.0	7.0	7.1	6.5	5.6	4.8	5.2	6.0	7.3	7.4	9.1
2016	7.9	8.4	7.8	8.5	6.2	6.8	5.9	5.5	6.6	8.2	8.2	7.9
2017	7.0	7.8	8.2	9.2	7.4	5.9	5.3	5.7	6.2	8.8	7.9	7.2
2018	7.8	6.5	8.6	7.8	6.3	5.9	4.6	5.6	7.1	7.9	7.4	7.8
2019	7.0	8.0	7.1	8.0	7.1	6.0	5.3	5.1	6.9	7.5	7.2	8.2
2020	8.0	8.3	9.1	7.5	6.1	5.9	4.5	5.8	6.4	6.8	7.6	7.0
2021	6.7	7.1	8.9	8.1	6.2	5.2	4.9	5.2	6.1	6.6	6.8	7.9
2022	4.6	9.3	7.4	8.0	6.3	5.6	4.0	4.7	5.9	7.7	7.5	7.3
2023	7.9	8.3	8.4	10.0	7.1	6.9	4.3	5.2	5.8	7.3	7.9	5.4
2024	6.6	5.4	7.7	8.4	6.6	5.5	4.9	5.1	5.2	6.8	7.7	6.9
2025	8.0	7.0	8.4	7.0	8.2	3.8	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	M	M	47.20	32.62	17.54
2008	18.18	16.81	26.78	42.70	49.72	62.47	65.86	68.74	59.04	47.55	31.45	12.29
2009	9.12	18.54	28.22	41.73	51.09	61.41	63.08	62.88	62.79	42.21	40.01	16.68
2010	16.74	22.97	41.54	49.75	60.14	64.33	70.51	70.16	56.67	49.79	36.93	19.67
2011	9.59	18.11	28.13	40.51	58.49	65.75	66.79	70.74	62.12	51.34	35.60	22.71
2012	17.37	25.42	39.90	44.36	57.20	66.80	72.59	70.26	59.06	46.86	32.12	21.03
2013	14.87	16.31	26.89	35.42	51.80	64.58	63.30	66.14	59.00	46.81	29.30	11.33
2014	6.10	11.11	19.46	37.46	51.92	65.66	61.85	65.79	55.88	44.19	25.54	22.42
2015	11.15	4.10	25.21	40.64	52.90	60.38	63.82	64.34	63.68	46.52	38.78	26.72
2016	16.38	16.73	32.12	39.56	53.13	65.06	69.39	69.74	63.14	49.59	38.96	18.99
2017	20.97	23.32	28.23	43.28	52.55	63.20	66.43	64.57	59.78	49.77	28.70	11.79
2018	13.71	14.20	27.94	34.76	56.68	65.42	65.68	65.06	58.46	39.72	25.52	22.77
2019	8.25	13.68	26.89	39.92	50.29	63.44	68.00	65.56	58.94	46.52	25.94	19.05
2020	19.34	20.20	31.42	39.44	52.21	64.22	69.51	67.30	56.78	40.07	35.42	22.42
2021	21.49	14.84	31.94	42.74	52.26	65.00	69.74	69.39	61.40	53.95	34.64	20.03
2022	5.00	10.80	27.82	38.00	57.82	61.76	64.21	68.27	60.53	48.31	33.32	21.80
2023	19.40	20.50	28.02	39.20	57.70	68.37	67.13	67.10	64.25	48.20	32.56	29.19
2024	17.52	29.04	41.00	41.36	56.98	61.40	67.72	69.72	63.37	51.35	38.42	23.62
2025	11.77	16.66	29.03	38.44	58.47	61.25	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	M	M	39.11	23.07	6.56
2008	5.95	1.72	9.17	29.51	37.99	49.31	53.75	55.34	48.22	37.77	25.54	-0.13
2009	-6.24	5.41	11.54	28.89	39.10	49.87	52.01	52.36	51.07	33.07	33.05	5.94
2010	5.86	6.21	24.76	34.17	47.24	51.84	60.01	59.73	44.89	36.17	27.10	12.39
2011	-2.50	4.86	11.60	26.37	43.63	53.03	56.29	57.68	47.24	40.59	29.72	13.71
2012	7.79	13.44	26.83	29.66	44.72	55.16	61.73	57.08	45.14	36.76	26.66	12.72
2013	2.56	3.07	11.39	23.84	40.36	50.90	54.35	55.86	46.64	36.70	22.70	-5.63
2014	-7.83	-3.23	1.28	24.38	41.64	52.40	50.64	53.83	44.96	37.75	16.42	13.83
2015	-2.84	-14.22	11.04	25.88	40.77	49.10	52.96	54.59	52.88	34.90	30.86	21.03
2016	7.73	4.50	17.31	24.14	39.90	53.03	57.14	58.83	51.56	40.54	32.06	10.57
2017	12.32	10.27	11.33	29.42	40.48	51.20	54.53	52.96	48.86	39.78	20.84	2.21
2018	1.98	-1.73	11.33	19.40	42.97	51.80	54.41	54.50	47.42	32.99	17.60	14.58
2019	-4.58	-2.84	10.05	26.72	38.91	51.32	55.52	54.30	48.62	37.75	19.46	9.18
2020	9.99	6.33	18.30	25.28	40.71	52.40	59.46	55.92	44.96	29.74	28.16	14.93
2021	12.37	-0.08	18.88	30.74	42.16	53.12	56.39	58.83	47.66	44.31	25.83	7.58
2022	-11.56	-5.90	14.65	27.86	45.90	49.82	52.92	54.87	46.40	40.15	25.70	13.13
2023	11.30	8.99	10.87	29.34	44.60	55.90	55.07	54.64	51.12	38.64	23.34	21.42
2024	10.07	18.02	25.57	31.46	44.38	49.57	57.86	57.27	46.01	39.80	32.60	16.91
2025	-0.26	3.27	14.70	25.84	43.85	48.65	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	M	M	43.16	27.84	12.05
2008	12.07	9.26	17.98	36.10	43.85	55.89	59.81	62.04	53.63	42.66	28.50	6.08
2009	1.44	11.98	19.88	35.31	45.10	55.64	57.55	57.62	56.93	37.64	36.53	11.31
2010	11.30	14.59	33.15	41.96	53.69	58.09	65.26	64.95	50.78	42.98	32.01	16.03
2011	3.54	11.49	19.86	33.44	51.06	59.39	61.54	64.21	54.68	45.96	32.66	18.21
2012	12.58	19.43	33.36	37.01	50.96	60.98	67.16	63.67	52.10	41.81	29.39	16.87
2013	8.72	9.69	19.14	29.63	46.08	57.74	58.83	61.00	52.82	41.75	26.00	2.85
2014	-0.86	3.94	10.37	30.92	46.78	59.03	56.24	59.81	50.42	40.97	20.98	18.12
2015	4.16	-5.06	18.12	33.26	46.84	54.74	58.39	59.46	58.28	40.71	34.82	23.87
2016	12.05	10.62	24.71	31.85	46.52	59.05	63.27	64.28	57.35	45.06	35.51	14.78
2017	16.64	16.80	19.78	36.35	46.52	57.20	60.48	58.77	54.32	44.77	24.77	7.00
2018	7.85	6.23	19.63	27.08	49.83	58.61	60.05	59.78	52.94	36.35	21.56	18.67
2019	1.84	5.42	18.47	33.32	44.60	57.38	61.76	59.93	53.78	42.13	22.70	14.12
2020	14.67	13.27	24.86	32.36	46.46	58.31	64.49	61.61	50.87	34.90	31.79	18.67
2021	16.93	7.38	25.41	36.74	47.21	59.06	63.06	64.11	54.53	49.13	30.23	13.80
2022	-3.28	2.45	21.24	32.93	51.86	55.79	58.57	61.57	53.47	44.23	29.51	17.47
2023	15.35	14.74	19.45	34.27	51.15	62.13	61.10	60.87	57.69	43.42	27.95	25.30
2024	13.80	23.53	33.29	36.41	50.68	55.49	62.79	63.50	54.69	45.58	35.51	20.27
2025	5.76	9.97	21.87	32.14	51.16	54.95	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	M	M	77.0%	86.0%	84.3%
2008	80.1%	75.3%	73.2%	75.4%	74.2%	83.3%	83.7%	81.3%	84.6%	81.8%	84.4%	79.2%
2009	78.3%	79.6%	72.4%	71.9%	69.6%	83.2%	85.6%	90.6%	91.0%	88.0%	92.7%	84.7%
2010	82.0%	72.1%	75.0%	74.3%	73.0%	83.0%	88.4%	89.3%	87.4%	81.1%	80.9%	76.7%
2011	75.5%	70.4%	66.7%	69.6%	61.9%	64.9%	79.9%	73.6%	73.3%	73.4%	74.6%	79.0%
2012	77.4%	72.3%	76.8%	65.1%	74.0%	75.7%	78.0%	74.6%	79.7%	82.2%	78.9%	79.1%
2013	74.4%	72.4%	71.6%	76.7%	69.9%	68.3%	78.5%	81.4%	77.3%	75.7%	72.9%	66.1%
2014	65.5%	66.4%	63.8%	71.8%	77.1%	70.1%	81.7%	84.3%	90.0%	86.3%	79.6%	84.8%
2015	76.6%	70.0%	74.3%	69.1%	74.8%	78.0%	81.8%	89.4%	82.8%	79.9%	82.7%	87.4%
2016	80.9%	76.3%	70.8%	64.4%	63.2%	71.1%	77.8%	81.5%	85.9%	80.6%	86.4%	81.8%
2017	83.5%	77.5%	65.7%	68.2%	70.1%	75.8%	77.2%	83.3%	88.4%	82.0%	83.4%	79.7%
2018	78.9%	74.7%	63.7%	61.7%	65.8%	68.2%	84.1%	89.0%	87.5%	86.0%	83.8%	85.0%
2019	77.1%	75.7%	73.6%	73.4%	70.2%	69.3%	80.8%	85.4%	89.7%	83.4%	85.7%	84.4%
2020	85.2%	77.8%	78.8%	66.6%	71.1%	75.4%	85.0%	83.5%	85.7%	82.2%	83.2%	83.4%
2021	81.3%	74.9%	71.1%	78.5%	71.1%	79.8%	76.3%	88.0%	85.4%	89.1%	83.1%	83.5%
2022	80.5%	71.3%	69.1%	78.1%	68.2%	77.1%	83.6%	84.6%	85.3%	87.3%	85.3%	84.3%
2023	85.0%	77.6%	64.5%	79.8%	60.3%	67.5%	81.4%	84.0%	87.0%	86.9%	76.6%	87.4%
2024	83.5%	85.9%	72.4%	76.5%	70.6%	78.5%	83.8%	81.0%	82.7%	80.3%	86.9%	84.3%
2025	75.0%	77.7%	76.6%	77.3%	63.2%	78.3%	M	M	M	M	M	M

Monthly Plots

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