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
2004	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2005	0.00	0.00	0.00	0.00	0.00	0.00	M	M	M	M	M	0.00
2006	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2007	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	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
2004	M	M	M	12.1	12.5	12.4	7.4	10.5	9.7	11.7	13.0	8.3
2005	8.7	6.6	12.6	11.6	11.3	10.6	M	M	M	M	M	11.4
2006	M	10.7	13.3	13.1	13.7	11.4	12.1	11.6	13.3	12.0	11.3	14.7
2007	15.1	12.7	11.1	13.0	15.2	12.1	9.8	10.6	11.7	10.6	13.1	11.9
2008	8.6	14.5	13.1	12.5	12.2	11.0	9.5	10.8	9.6	10.5	11.4	8.8
2009	9.7	9.1	8.7	13.0	10.3	10.3	9.9	9.2	7.9	10.6	9.1	10.1
2010	9.7	9.3	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	8.6	8.5	10.1	8.5	12.4	9.4
2012	6.0	6.6	10.3	11.4	11.2	9.2	7.5	8.8	10.4	10.2	11.5	9.0
2013	11.1	11.6	14.6	13.4	13.3	10.2	8.6	9.0	8.5	12.5	11.8	12.4
2014	12.5	10.1	14.3	14.1	12.7	10.8	10.3	9.4	9.1	11.3	10.4	11.5
2015	13.1	11.0	12.1	11.3	11.9	8.7	11.5	9.7	7.8	12.8	12.1	12.0
2016	12.9	10.3	12.5	11.1	10.8	10.9	8.8	7.7	10.1	8.7	12.1	11.6
2017	10.9	12.2	11.7	15.4	13.9	10.7	8.2	7.9	9.6	9.9	9.9	7.7
2018	10.1	7.6	11.4	12.0	14.6	10.7	8.9	9.1	9.3	12.4	11.8	8.7
2019	9.9	10.1	13.4	10.6	11.7	9.5	9.7	9.6	10.6	11.4	10.7	10.2
2020	12.0	11.4	14.0	14.8	10.8	10.2	8.1	9.2	11.4	10.5	10.4	10.0
2021	10.5	11.0	12.6	12.6	10.8	10.5	9.6	8.2	11.4	10.9	13.1	10.8
2022	10.5	11.6	12.6	12.2	13.9	10.5	8.6	7.8	9.4	10.3	10.7	9.7
2023	12.4	10.2	14.1	12.1	9.7	10.7	9.0	8.6	8.5	12.5	11.8	12.3
2024	11.6	12.2	11.5	11.7	12.9	10.5	9.4	8.9	9.1	9.0	12.0	12.1
2025	12.3	8.2	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
2004	M	M	M	42.55	73.03	77.55	80.30	71.43	61.21	46.48	29.82	5.35
2005	6.59	0.65	27.11	47.92	67.28	75.91	75.68	M	M	47.15	30.51	13.61
2006	-8.30	11.75	31.39	43.15	64.60	78.76	73.17	68.32	63.83	43.10	24.98	23.21
2007	21.48	11.86	25.28	49.01	64.75	71.63	77.77	74.63	64.70	49.85	26.93	11.85
2008	4.02	13.86	34.44	51.82	63.75	73.69	80.94	73.92	53.94	50.82	36.05	17.56
2009	7.86	8.51	30.40	47.73	64.60	73.21	75.66	72.04	63.46	49.08	27.17	5.40
2010	-7.81	-0.80	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	72.72	67.48	67.40	50.64	19.52	7.50
2012	1.52	4.26	26.02	59.42	65.97	77.12	80.54	74.74	63.50	49.36	25.52	-3.58
2013	5.69	14.69	24.68	48.26	60.51	74.36	76.71	73.04	62.48	43.15	38.42	18.99
2014	6.20	3.14	30.26	47.00	67.30	76.76	68.46	77.00	58.16	36.53	22.82	15.68
2015	9.30	16.89	26.95	49.16	67.54	78.86	73.81	67.65	59.24	39.90	19.90	20.27
2016	-0.96	22.57	29.74	55.46	66.32	71.96	75.20	80.25	65.96	37.57	15.56	6.97
2017	9.41	10.27	27.53	48.56	64.63	75.68	74.62	77.23	59.60	41.58	32.48	16.21
2018	2.15	12.01	23.52	45.50	58.36	68.60	77.93	70.03	63.02	46.69	24.62	6.51
2019	10.69	8.73	31.19	47.60	66.32	68.78	78.51	72.76	60.38	50.42	23.18	17.83
2020	19.11	23.74	34.03	57.92	74.45	71.36	80.36	78.74	61.94	48.78	26.06	9.24
2021	0.24	7.40	22.59	48.20	78.22	74.48	78.22	77.81	57.56	47.68	24.56	17.14
2022	11.68	17.20	23.00	56.36	68.17	73.88	77.90	75.03	64.64	48.03	20.66	9.06
2023	11.91	14.32	32.17	52.46	69.97	74.66	84.61	74.79	65.18	49.48	33.98	10.86
2024	9.59	11.02	27.24	51.98	59.52	78.08	75.43	70.50	62.42	46.75	27.56	20.45
2025	17.37	24.20	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
2004	M	M	M	30.64	54.33	62.09	64.69	55.79	46.17	35.51	26.10	3.92
2005	-2.19	-11.73	15.79	36.51	53.97	65.37	64.82	M	M	33.80	23.68	6.69
2006	-18.17	-0.60	20.05	32.79	52.14	67.35	62.62	56.29	48.03	33.94	14.94	15.86
2007	15.10	-1.17	11.39	38.54	53.43	59.76	67.13	60.59	49.02	35.63	15.23	4.23
2008	-8.73	4.46	22.34	33.31	51.06	60.42	68.63	58.93	41.73	35.98	29.71	7.79
2009	-1.14	-6.12	16.48	33.21	47.79	55.79	56.52	54.53	45.06	33.44	19.45	-3.74
2010	-18.77	-11.81	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	57.24	53.26	45.86	34.21	9.86	-3.19
2012	-10.85	-13.74	12.61	40.16	49.25	60.62	61.09	55.28	45.08	34.50	18.38	-12.04
2013	-3.44	3.13	12.56	34.48	44.89	55.34	58.30	56.90	44.90	31.54	29.18	11.45
2014	-1.12	-7.41	21.43	33.20	48.84	59.06	54.88	57.61	38.84	27.99	14.06	7.32
2015	-0.23	3.39	11.10	31.58	51.22	62.90	59.64	53.19	43.58	31.65	13.13	13.77
2016	-9.46	11.77	18.41	42.14	49.71	61.10	64.75	65.15	48.74	29.21	8.54	-1.04
2017	0.70	-1.17	12.14	35.72	50.87	61.82	60.80	59.17	43.34	28.98	24.86	4.07
2018	-10.50	-2.33	8.31	32.00	42.51	55.82	64.11	54.65	45.14	36.01	17.72	-1.79
2019	0.88	-2.46	19.52	32.60	48.66	55.40	62.14	56.04	43.70	36.08	13.16	9.99
2020	10.75	15.37	24.57	43.70	54.94	54.20	63.32	60.05	45.08	34.26	18.38	2.10
2021	-8.65	-5.00	10.81	35.12	59.23	59.90	63.65	61.73	42.92	32.64	15.44	7.26
2022	1.81	6.67	9.41	38.24	51.05	58.46	63.74	56.56	45.56	33.57	14.06	-0.05
2023	3.72	2.94	21.49	31.22	45.65	56.60	65.04	54.88	45.62	36.70	25.22	1.92
2024	-1.68	-2.26	14.87	37.70	47.33	64.88	63.35	57.49	46.16	31.19	18.32	13.48
2025	9.88	13.80	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
2004	M	M	M	36.59	63.68	69.82	72.50	63.61	53.69	41.00	27.96	4.64
2005	2.20	-5.54	21.45	42.22	60.63	70.64	70.25	M	M	40.48	27.10	10.15
2006	-13.23	5.58	25.72	37.97	58.37	73.06	67.89	62.30	55.93	38.52	19.96	19.53
2007	18.29	5.34	18.33	43.77	59.09	65.69	72.45	67.61	56.86	42.74	21.08	8.04
2008	-2.35	9.16	28.39	42.56	57.41	67.05	74.79	66.43	47.83	43.40	32.88	12.68
2009	3.36	1.20	23.44	40.47	56.19	64.50	66.09	63.28	54.26	41.26	23.31	0.83
2010	-13.29	-6.30	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	64.98	60.37	56.63	42.42	14.69	2.15
2012	-4.67	-4.74	19.31	49.79	57.61	68.87	70.82	65.01	54.29	41.93	21.95	-7.81
2013	1.12	8.91	18.62	41.37	52.70	64.85	67.51	64.97	53.69	37.34	33.80	15.22
2014	2.54	-2.14	25.85	40.10	58.07	67.91	61.67	67.30	48.50	32.26	18.44	11.50
2015	4.54	10.14	19.02	40.37	59.38	70.88	66.72	60.42	51.41	35.77	16.51	17.02
2016	-5.21	17.17	24.07	48.80	58.01	66.53	69.97	72.70	57.35	33.39	12.05	2.97
2017	5.06	4.55	19.84	42.14	57.75	68.75	67.71	68.20	51.47	35.28	28.67	10.14
2018	-4.17	4.84	15.92	38.75	50.44	62.21	71.02	62.34	54.08	41.35	21.17	2.36
2019	5.78	3.14	25.35	40.10	57.49	62.09	70.32	64.40	52.04	43.25	18.17	13.91
2020	14.93	19.56	29.30	50.81	64.69	62.78	71.84	69.39	53.51	41.52	22.22	5.67
2021	-4.20	1.20	16.70	41.66	68.73	67.19	70.93	69.77	50.24	40.16	20.00	12.20
2022	6.74	11.93	16.21	47.30	59.61	66.17	70.82	65.79	55.10	40.80	17.36	4.51
2023	7.82	8.63	26.83	41.84	57.81	65.63	74.82	64.84	55.40	43.09	29.60	6.39
2024	3.95	4.38	21.05	44.84	53.43	71.48	69.39	63.99	54.29	38.97	22.94	16.96
2025	13.62	19.00	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
2004	M	M	M	60.1%	46.3%	53.0%	62.0%	69.5%	78.6%	80.5%	90.3%	81.6%
2005	85.6%	80.4%	84.6%	68.4%	53.3%	53.8%	M	M	M	M	M	83.3%
2006	M	83.7%	81.3%	70.4%	44.2%	60.2%	63.9%	65.7%	60.4%	78.8%	82.4%	85.0%
2007	85.4%	83.6%	77.3%	70.2%	56.9%	57.4%	71.6%	63.7%	65.2%	72.9%	82.0%	82.5%
2008	78.0%	81.2%	75.7%	52.2%	58.4%	57.6%	62.7%	63.1%	73.6%	75.2%	84.9%	77.2%
2009	75.5%	74.5%	78.2%	66.8%	53.2%	60.0%	66.3%	71.6%	70.5%	68.9%	78.5%	74.9%
2010	70.7%	69.7%	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	74.8%	74.5%	66.1%	78.9%	83.5%	84.1%
2012	81.9%	84.7%	85.7%	60.5%	58.9%	66.4%	70.7%	70.4%	70.9%	77.5%	88.7%	81.6%
2013	86.2%	86.0%	83.7%	73.7%	61.2%	56.4%	76.7%	78.6%	73.1%	81.3%	86.1%	89.1%
2014	85.0%	82.7%	87.1%	67.9%	53.7%	56.8%	79.5%	73.1%	77.1%	88.6%	88.3%	86.6%
2015	83.5%	83.0%	82.2%	73.6%	61.0%	66.9%	73.6%	75.4%	75.4%	78.3%	87.9%	89.0%
2016	79.5%	85.1%	83.2%	75.5%	49.3%	64.6%	74.9%	65.4%	69.6%	84.1%	81.0%	83.3%
2017	84.1%	80.6%	79.3%	68.8%	52.9%	59.7%	74.5%	65.0%	72.8%	82.1%	89.5%	86.4%
2018	77.4%	83.2%	80.2%	76.7%	61.3%	70.8%	69.7%	79.3%	75.7%	77.0%	87.4%	85.7%
2019	85.5%	82.1%	85.0%	67.1%	50.4%	69.4%	70.2%	73.1%	76.8%	74.2%	81.7%	85.4%
2020	86.0%	85.8%	76.9%	59.1%	58.6%	60.6%	64.6%	65.8%	71.3%	74.0%	82.2%	81.5%
2021	76.3%	77.9%	79.1%	68.2%	43.5%	54.1%	64.1%	67.9%	70.0%	73.1%	77.0%	80.2%
2022	82.4%	80.4%	77.0%	57.8%	51.7%	59.8%	69.0%	67.6%	66.1%	74.5%	86.5%	78.4%
2023	77.6%	84.7%	80.5%	54.9%	46.9%	59.3%	60.8%	69.9%	76.9%	78.9%	90.0%	80.6%
2024	79.7%	76.5%	81.0%	72.2%	54.3%	67.7%	78.2%	79.0%	73.7%	75.1%	84.9%	85.6%
2025	82.4%	90.0%	M	M	M	M	M	M	M	M	M	M