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
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
2026	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
2009	M	16.7	8.6	16.3	21.3	16.3	19.1	18.7	21.2	21.4	25.5	22.4
2010	22.5	19.5	20.7	17.8	15.2	14.1	16.1	19.2	21.3	23.4	23.6	0.0
2011	16.4	24.8	17.6	19.8	20.8	17.7	18.8	18.0	21.2	23.9	22.7	32.5
2012	28.0	24.6	17.5	19.6	19.0	20.0	17.5	16.6	21.9	21.3	23.0	5.3
2013	21.4	21.8	24.9	19.9	19.8	17.8	13.4	16.8	20.0	27.1	22.8	29.5
2014	25.3	28.6	22.8	20.1	19.2	14.4	16.5	21.2	15.3	23.2	21.1	30.3
2015	28.9	21.8	24.7	17.5	21.0	18.7	19.6	18.3	19.3	18.7	29.9	30.1
2016	28.2	25.5	20.3	19.5	20.9	14.3	17.6	19.0	18.9	20.4	23.0	22.2
2017	21.5	26.8	21.4	19.8	18.8	20.3	16.9	16.3	18.7	28.1	26.0	26.9
2018	27.2	23.3	24.8	22.5	19.9	14.8	14.9	15.2	20.8	23.9	24.4	24.5
2019	24.9	22.9	26.5	20.3	17.0	17.7	17.9	19.8	20.8	23.2	20.4	25.7
2020	22.3	33.6	23.7	18.9	16.3	18.5	17.8	19.9	19.9	23.9	23.7	22.5
2021	23.8	25.8	21.4	17.7	17.3	15.6	14.5	16.6	17.6	21.4	22.7	22.8
2022	25.9	33.3	18.8	20.8	18.0	16.6	17.2	15.0	19.1	23.1	24.7	23.3
2023	26.6	21.3	22.5	19.9	15.1	17.3	21.1	18.1	18.1	25.0	25.2	29.8
2024	29.1	26.1	23.5	24.9	17.3	17.3	18.1	18.8	20.9	21.3	22.6	17.5
2025	22.3	23.1	20.5	15.6	19.4	19.7	16.0	18.6	23.1	25.8	26.7	26.9
2026	28.0	27.8	22.2	19.9	17.4	19.1	17.7	16.9	22.9	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	59.90	M	M	46.40	41.58
2011	41.79	37.40	M	59.00	54.50	54.50	58.10	60.26	61.58	57.84	54.56	48.20
2012	45.76	41.62	46.69	46.46	52.09	56.30	60.86	64.46	63.20	M	48.31	46.05
2013	42.28	40.16	38.91	44.00	49.48	54.32	62.54	64.40	60.44	58.54	50.30	48.55
2014	46.57	46.72	47.74	49.88	54.18	58.94	64.98	63.01	63.08	60.10	54.32	48.26
2015	45.35	43.31	44.77	47.06	51.57	56.60	61.73	63.94	59.96	57.03	54.56	52.32
2016	46.52	44.85	44.77	47.00	53.43	57.14	61.90	64.17	66.08	57.95	50.43	49.36
2017	44.77	44.34	46.86	47.78	54.06	60.26	62.60	63.88	61.22	58.71	51.44	46.69
2018	45.53	40.74	40.71	48.02	54.53	57.26	65.33	65.15	60.80	58.01	52.46	48.61
2019	45.24	46.98	46.81	48.98	51.68	59.42	63.65	66.03	61.94	57.14	50.66	48.14
2020	47.79	46.83	45.94	49.46	53.31	59.30	60.92	66.37	62.00	56.62	53.42	48.32
2021	44.31	42.67	44.37	45.44	49.83	59.12	62.60	63.06	63.68	58.88	52.82	48.08
2022	46.69	46.85	46.63	48.38	54.30	59.12	64.05	67.65	62.90	60.34	55.22	47.39
2023	46.81	46.59	45.41	47.60	51.97	61.58	63.06	63.53	66.50	59.75	51.38	49.13
2024	45.18	47.08	47.33	49.70	56.27	58.58	62.08	65.56	63.38	58.59	51.86	49.34
2025	45.06	43.38	46.28	50.48	54.76	61.94	64.75	65.21	63.20	58.07	52.58	49.54
2026	42.86	43.64	47.15	49.82	55.11	61.88	64.81	66.37	65.43	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	59.90	M	M	46.40	37.23
2011	39.20	37.40	M	55.40	52.70	54.05	57.20	56.66	57.32	53.25	50.54	43.44
2012	42.10	37.65	42.45	43.34	48.32	52.76	56.85	60.51	59.60	M	44.81	41.29
2013	38.62	36.76	35.25	40.34	45.12	51.44	58.77	60.63	56.78	53.95	46.64	44.48
2014	42.80	42.99	43.79	46.10	50.93	56.06	61.09	58.83	59.66	55.86	50.18	44.31
2015	41.00	40.16	41.41	42.68	47.68	52.82	57.32	60.51	56.54	53.83	49.64	48.20
2016	42.22	40.88	40.88	42.92	49.77	53.24	58.48	60.68	62.30	53.95	46.65	46.40
2017	40.65	40.68	43.55	43.94	50.29	55.58	58.30	59.93	57.68	54.70	46.76	42.45
2018	41.06	37.01	37.05	43.52	49.42	54.20	61.50	60.45	56.93	53.14	48.62	44.77
2019	41.23	43.38	42.74	45.08	47.85	55.46	59.64	61.79	57.68	52.90	47.12	45.18
2020	43.50	42.24	42.51	45.38	49.48	55.40	57.32	61.90	57.74	52.21	49.46	44.83
2021	40.48	38.62	41.12	41.12	46.28	55.16	59.35	59.75	60.20	54.47	49.40	44.02
2022	42.86	41.96	43.15	44.66	50.29	55.46	60.05	63.88	59.48	56.50	50.90	43.85
2023	42.45	42.99	41.41	44.84	49.01	57.50	59.00	59.81	61.58	54.76	47.30	44.66
2024	40.83	43.30	43.90	45.62	52.26	54.86	58.30	61.50	59.06	54.76	47.60	44.98
2025	40.83	40.36	42.97	46.16	50.81	57.26	61.15	61.61	58.58	53.83	48.56	46.57
2026	38.10	39.39	43.03	46.10	50.64	57.44	61.15	62.31	60.54	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	59.90	M	M	46.40	39.40
2011	40.49	37.40	M	57.20	53.60	54.27	57.65	58.46	59.45	55.55	52.55	45.82
2012	43.93	39.63	44.57	44.90	50.20	54.53	58.85	62.48	61.40	M	46.56	43.67
2013	40.45	38.46	37.08	42.17	47.30	52.88	60.65	62.51	58.61	56.24	48.47	46.52
2014	44.69	44.86	45.76	47.99	52.55	57.50	63.04	60.92	61.37	57.98	52.25	46.28
2015	43.18	41.74	43.09	44.87	49.62	54.71	59.52	62.22	58.25	55.43	52.10	50.26
2016	44.37	42.86	42.83	44.96	51.60	55.19	60.19	62.43	64.19	55.95	48.54	47.88
2017	42.71	42.51	45.21	45.86	52.18	57.92	60.45	61.90	59.45	56.71	49.10	44.57
2018	43.29	38.88	38.88	45.77	51.97	55.73	63.41	62.80	58.87	55.57	50.54	46.69
2019	43.24	45.18	44.77	47.03	49.77	57.44	61.64	63.91	59.81	55.02	48.89	46.66
2020	45.65	44.54	44.22	47.42	51.39	57.35	59.12	64.14	59.87	54.41	51.44	46.57
2021	42.39	40.65	42.74	43.28	48.05	57.14	60.97	61.41	61.94	56.68	51.11	46.05
2022	44.77	44.41	44.89	46.52	52.29	57.29	62.05	65.76	61.19	58.42	53.06	45.62
2023	44.63	44.79	43.41	46.22	50.49	59.54	61.03	61.67	64.04	57.26	49.34	46.89
2024	43.00	45.19	45.62	47.66	54.27	56.72	60.19	63.53	61.22	56.68	49.73	47.16
2025	42.95	41.87	44.63	48.32	52.79	59.60	62.95	63.41	60.89	55.95	50.57	48.05
2026	40.48	41.51	45.09	47.96	52.87	59.66	62.98	64.34	62.99	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
2009	M	88.1%	85.7%	89.0%	83.7%	78.9%	81.1%	77.5%	75.7%	73.1%	75.9%	74.0%
2010	78.1%	80.1%	82.1%	83.0%	78.1%	83.2%	83.1%	80.9%	79.9%	77.7%	72.9%	71.2%
2011	83.4%	89.0%	86.5%	86.9%	82.2%	85.5%	81.7%	83.4%	80.6%	75.7%	82.6%	75.4%
2012	79.0%	81.7%	89.9%	83.7%	84.4%	83.8%	83.7%	82.4%	80.7%	M	79.4%	79.6%
2013	79.3%	77.3%	75.9%	82.5%	87.2%	86.4%	87.8%	82.7%	78.0%	81.1%	75.0%	80.1%
2014	84.2%	82.5%	83.3%	88.5%	83.1%	80.4%	86.8%	77.3%	83.9%	81.5%	81.8%	75.7%
2015	76.0%	80.1%	82.1%	83.8%	81.4%	82.7%	83.7%	84.0%	78.4%	77.7%	80.3%	84.2%
2016	80.6%	75.6%	82.5%	79.7%	83.2%	90.2%	85.6%	82.0%	79.9%	73.0%	72.9%	83.1%
2017	77.8%	85.5%	87.5%	81.0%	87.5%	87.3%	83.8%	79.2%	77.4%	80.6%	72.8%	79.8%
2018	81.5%	75.5%	85.4%	87.5%	87.4%	87.0%	84.7%	82.9%	75.9%	78.3%	79.1%	81.3%
2019	77.2%	84.0%	81.9%	77.9%	80.2%	86.3%	82.1%	82.5%	77.0%	75.2%	77.2%	82.0%
2020	85.6%	78.2%	75.9%	77.7%	77.9%	83.8%	82.2%	83.8%	80.2%	79.3%	82.4%	80.3%
2021	75.6%	81.5%	85.7%	77.2%	87.5%	84.9%	88.8%	84.3%	83.6%	78.7%	74.7%	78.8%
2022	79.7%	78.5%	79.1%	77.8%	82.8%	82.7%	77.4%	78.3%	73.1%	78.3%	78.4%	73.4%
2023	78.0%	82.4%	79.9%	80.1%	84.0%	81.7%	81.9%	82.8%	80.3%	79.1%	77.7%	80.8%
2024	77.6%	87.5%	86.7%	81.6%	90.1%	82.3%	87.2%	81.4%	80.0%	79.8%	74.4%	81.7%
2025	77.5%	78.7%	78.9%	81.2%	80.0%	82.4%	83.0%	77.4%	74.4%	78.9%	78.9%	81.4%
2026	83.8%	88.4%	85.1%	82.1%	80.5%	85.5%	83.1%	78.2%	77.4%	M	M	M

Monthly Plots

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