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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
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
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	11.1	7.8
2011	5.4	M	M	M	4.9	9.7	3.8	6.1	6.0	6.1	4.9	8.0
2012	8.3	7.5	8.7	7.0	6.8	6.5	5.7	5.3	5.8	5.7	6.1	5.9
2013	7.7	6.9	8.6	6.7	6.0	5.9	6.0	5.4	5.5	5.6	6.5	7.8
2014	8.9	5.8	7.1	6.4	7.4	6.5	6.8	5.5	5.6	4.6	5.2	7.7
2015	8.7	5.8	7.1	8.5	6.2	6.5	7.3	6.3	6.4	6.1	7.8	8.5
2016	7.0	8.0	6.3	6.6	6.2	6.2	6.4	5.4	4.7	8.2	8.3	9.9
2017	7.9	10.0	8.9	10.3	8.9	10.5	8.2	7.5	8.9	11.2	9.1	11.0
2018	10.2	7.2	9.1	10.2	8.7	8.7	7.7	7.1	8.2	9.3	7.9	10.0
2019	10.2	10.1	11.7	10.4	8.9	9.0	9.9	7.1	9.4	7.8	9.4	9.6
2020	10.7	12.9	9.9	9.6	9.4	8.0	8.3	6.8	7.2	8.3	8.3	9.3
2021	8.7	8.0	8.7	9.2	9.6	7.3	7.9	8.4	8.1	8.9	9.7	9.4
2022	12.2	13.2	7.3	10.3	9.1	7.7	8.9	7.4	7.5	7.3	7.3	8.7
2023	9.9	10.3	9.8	8.8	8.3	7.4	8.2	7.8	6.6	9.9	9.0	11.6
2024	11.3	10.7	8.5	9.3	8.3	8.0	7.7	7.2	8.9	8.3	8.8	9.7
2025	10.2	7.2	8.4	8.6	9.0	10.8	8.4	7.5	7.5	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	35.60	M	53.60	M	M	M	M	M	M	51.80	M
2010	28.40	M	M	M	51.80	M	M	59.90	M	M	39.20	26.02
2011	32.00	26.60	M	69.80	71.60	81.05	68.00	73.58	69.62	57.20	45.08	42.10
2012	36.30	30.63	51.28	58.76	69.34	69.20	76.01	75.95	66.86	54.82	45.62	33.05
2013	30.66	35.21	35.66	54.62	68.35	73.58	77.93	76.88	63.20	58.65	45.50	41.35
2014	31.07	44.92	52.32	61.04	65.39	71.18	82.57	74.15	68.90	57.95	45.62	38.21
2015	38.74	39.59	49.88	57.44	65.45	71.54	76.77	84.78	68.60	53.72	47.12	45.76
2016	31.94	43.54	45.65	58.22	71.95	76.40	76.07	73.81	72.98	49.83	41.90	39.08
2017	31.94	37.27	50.58	53.12	65.85	71.78	73.17	74.85	63.08	56.56	45.02	39.95
2018	37.63	31.68	39.84	65.60	74.39	75.74	78.22	79.90	71.06	60.28	45.62	39.14
2019	34.90	43.96	50.35	60.74	62.48	83.18	76.07	79.55	65.18	58.54	46.34	41.58
2020	41.46	45.90	48.03	59.18	61.73	73.34	74.04	77.99	69.08	56.79	46.82	39.43
2021	33.10	35.15	45.99	52.16	62.72	78.20	79.15	71.95	67.04	58.01	45.86	34.38
2022	39.14	44.21	49.30	54.32	66.72	76.46	76.07	81.53	63.98	60.05	43.22	36.53
2023	40.54	40.16	46.57	54.80	65.85	76.34	77.75	76.01	76.64	57.95	43.64	39.26
2024	35.95	46.77	52.21	59.72	73.05	75.26	78.57	79.09	73.10	56.45	43.22	40.77
2025	39.55	36.76	53.14	62.30	62.48	73.88	75.84	75.08	74.75	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	35.60	M	51.80	M	M	M	M	M	M	51.80	M
2010	28.40	M	M	M	51.80	M	M	58.10	M	M	39.20	16.38
2011	26.71	24.80	M	69.80	59.00	77.45	64.40	54.50	47.06	41.41	32.78	34.03
2012	28.69	17.35	32.52	37.64	47.39	51.68	58.01	55.86	48.02	40.01	37.94	23.81
2013	23.58	29.17	20.39	37.34	49.42	54.50	56.74	55.92	45.08	41.41	36.74	32.29
2014	24.10	30.59	34.85	41.30	46.40	51.14	61.26	54.24	50.30	43.09	36.98	30.14
2015	32.00	27.63	32.93	35.54	43.55	51.32	55.81	59.06	48.80	38.91	38.24	36.01
2016	23.87	32.43	32.06	37.88	48.61	54.74	57.72	54.12	49.70	40.25	30.56	29.68
2017	21.43	26.41	33.80	36.98	45.70	52.40	54.53	54.41	49.52	43.55	36.62	32.23
2018	29.33	19.91	24.10	41.60	49.88	52.82	58.07	55.86	50.54	39.95	34.82	32.52
2019	27.35	29.56	34.15	37.70	45.01	57.62	55.11	56.39	47.60	42.45	37.40	33.39
2020	32.93	33.61	30.20	32.78	40.88	54.92	54.12	56.56	47.66	44.54	38.54	31.94
2021	26.72	20.62	29.27	32.90	43.61	54.08	59.87	52.61	48.20	40.07	37.04	24.51
2022	28.46	32.45	25.09	34.94	43.09	52.22	54.65	59.58	44.84	42.28	35.54	29.10
2023	33.63	27.44	30.95	36.98	41.93	52.70	54.30	57.14	51.80	42.68	32.12	31.48
2024	27.24	36.90	36.59	40.40	49.25	53.24	56.15	55.69	52.28	41.70	33.86	34.67
2025	31.36	24.48	31.36	38.72	40.01	51.80	55.81	52.73	59.45	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	35.60	M	52.70	M	M	M	M	M	M	51.80	M
2010	28.40	M	M	M	51.80	M	M	59.00	M	M	39.20	21.20
2011	29.36	25.70	M	69.80	65.30	79.25	66.20	64.04	58.34	49.30	38.93	38.07
2012	32.49	23.99	41.90	48.20	58.36	60.44	67.01	65.91	57.44	47.42	41.78	28.43
2013	27.12	32.19	28.02	45.98	58.88	64.04	67.33	66.40	54.14	50.03	41.12	36.82
2014	27.59	37.75	43.58	51.17	55.89	61.16	71.92	64.20	59.60	50.52	41.30	34.18
2015	35.37	33.61	41.41	46.49	54.50	61.43	66.29	71.92	58.70	46.31	42.68	40.88
2016	27.91	37.99	38.85	48.05	60.28	65.57	66.90	63.96	61.34	45.04	36.23	34.38
2017	26.69	31.84	42.19	45.05	55.78	62.09	63.85	64.63	56.30	50.06	40.82	36.09
2018	33.48	25.80	31.97	53.60	62.14	64.28	68.15	67.88	60.80	50.12	40.22	35.83
2019	31.13	36.76	42.25	49.22	53.75	70.40	65.59	67.97	56.39	50.49	41.87	37.49
2020	37.20	39.76	39.11	45.98	51.31	64.13	64.08	67.27	58.37	50.67	42.68	35.69
2021	29.91	27.89	37.63	42.53	53.16	66.14	69.51	62.28	57.62	49.04	41.45	29.45
2022	33.80	38.33	37.20	44.63	54.91	64.34	65.36	70.55	54.41	51.16	39.38	32.81
2023	37.08	33.80	38.76	45.89	53.89	64.52	66.03	66.58	64.22	50.32	37.88	35.37
2024	31.59	41.84	44.40	50.06	61.15	64.25	67.36	67.39	62.69	49.07	38.54	37.72
2025	35.45	30.62	42.25	50.51	51.25	62.84	65.82	63.91	67.10	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	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	93.5%	92.6%
2011	92.2%	M	M	M	89.7%	45.1%	71.7%	76.4%	75.9%	81.6%	91.6%	88.6%
2012	89.4%	85.4%	75.3%	65.5%	61.7%	73.0%	74.5%	73.1%	76.1%	85.7%	93.1%	92.2%
2013	91.1%	90.7%	73.1%	70.9%	71.4%	70.7%	72.5%	71.1%	83.3%	82.8%	92.4%	90.5%
2014	89.0%	84.5%	78.6%	69.4%	68.7%	67.4%	60.9%	68.9%	74.5%	82.8%	92.0%	89.7%
2015	86.3%	84.9%	72.8%	66.6%	64.5%	65.1%	63.7%	53.3%	73.7%	80.1%	88.1%	85.7%
2016	86.1%	82.1%	81.9%	65.8%	65.1%	64.1%	71.9%	74.4%	71.4%	89.1%	89.8%	90.3%
2017	86.9%	81.2%	75.0%	73.2%	70.1%	70.4%	75.4%	75.6%	85.0%	86.6%	89.9%	89.2%
2018	87.2%	80.6%	73.6%	68.6%	58.3%	61.0%	69.4%	65.7%	68.7%	76.5%	86.5%	89.1%
2019	87.2%	79.6%	74.8%	54.2%	71.3%	59.6%	64.0%	62.5%	77.2%	85.4%	91.2%	85.4%
2020	86.7%	76.5%	66.2%	52.6%	64.8%	75.0%	69.1%	68.5%	77.8%	85.9%	89.1%	88.3%
2021	88.6%	84.4%	77.3%	70.3%	68.7%	60.3%	70.8%	69.4%	73.9%	78.0%	88.1%	87.5%
2022	82.6%	73.8%	56.7%	58.4%	54.8%	61.2%	62.9%	66.0%	75.3%	85.8%	89.6%	88.8%
2023	87.4%	82.7%	77.4%	70.9%	58.7%	59.0%	62.2%	72.8%	71.3%	81.8%	87.4%	89.1%
2024	84.6%	87.1%	76.1%	69.2%	60.6%	66.7%	67.6%	65.6%	69.5%	81.6%	87.6%	90.4%
2025	87.3%	80.6%	67.2%	63.8%	64.4%	66.1%	70.9%	68.1%	77.2%	M	M	M

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