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	M	M	M	M	M	M	M	M	M
2005	M	M	M	M	M	M	M	M	M	M	M	M
2006	M	M	M	M	M	M	M	M	M	M	M	0.00
2007	0.11	0.03	1.19	2.00	1.65	0.71	1.41	0.09	1.83	2.33	2.97	4.50
2008	1.07	4.86	4.08	1.95	1.84	4.82	4.01	3.37	2.98	2.11	2.64	4.38
2009	2.44	2.05	3.77	3.91	1.75	4.81	3.00	4.12	0.98	2.56	1.13	2.77
2010	1.15	1.35	2.58	2.07	2.17	5.22	2.52	2.24	2.25	2.73	2.39	1.32
2011	1.10	2.47	3.89	4.48	5.95	2.13	1.48	3.31	4.93	2.97	16.30	26.17
2012	2.67	0.91	0.98	1.43	0.84	1.76	0.87	2.10	4.32	5.38	0.49	2.45
2013	2.63	2.52	0.27	2.43	1.51	4.63	3.18	2.81	2.07	1.96	1.31	3.82
2014	1.79	2.63	1.24	3.84	2.19	2.18	5.19	0.39	1.56	0.64	1.81	1.16
2015	1.98	1.59	1.01	2.66	1.86	3.41	0.67	1.33	3.83	2.96	1.32	1.73
2016	1.11	2.73	3.53	1.69	0.62	0.85	1.88	1.74	1.97	2.35	2.05	2.04
2017	1.92	2.01	3.26	6.02	6.34	4.00	2.63	3.25	1.27	4.08	2.34	1.54
2018	2.29	2.37	2.04	4.93	2.33	1.35	2.79	2.00	2.01	2.98	4.01	2.31
2019	2.35	3.11	2.24	3.22	5.10	3.01	2.26	4.28	1.89	4.42	1.16	3.69
2020	3.46	1.78	2.57	2.42	1.87	1.88	0.93	2.10	0.98	2.35	2.35	2.32
2021	1.29	1.71	1.32	1.71	0.95	3.35	0.54	M	2.75	5.72	1.11	1.69
2022	1.83	3.45	2.30	1.62	2.11	2.78	2.33	2.98	2.27	1.41	2.45	1.99
2023	2.84	2.76	3.35	3.49	1.78	2.57	3.72	2.93	0.87	2.80	1.62	3.08
2024	4.52	0.83	1.54	3.07	2.26	3.21	3.10	2.68	2.12	1.74	1.70	2.31
2025	1.28	2.24	1.75	3.20	4.22	1.58	1.41	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	M	M	M	M	6.7	6.6	7.3	8.4	10.3
2005	8.6	7.1	8.1	8.2	6.2	6.5	6.4	5.9	7.2	8.2	10.0	9.1
2006	9.1	10.8	9.0	7.2	6.7	6.5	6.8	6.4	7.1	8.2	6.3	10.1
2007	9.1	11.5	9.9	8.7	6.0	6.6	5.9	6.7	6.8	7.8	8.7	8.8
2008	10.4	9.3	9.3	7.5	7.6	7.3	6.7	5.7	6.2	8.1	7.7	11.4
2009	9.2	9.8	8.5	9.0	8.6	5.0	6.4	6.4	6.4	7.6	6.5	9.0
2010	9.8	8.9	7.9	7.5	6.7	6.9	5.9	6.7	7.6	8.8	7.8	11.2
2011	8.5	10.8	9.1	8.8	6.1	6.6	6.3	6.2	6.5	7.7	10.1	8.4
2012	9.8	9.7	9.3	8.6	5.7	7.4	6.3	6.5	6.6	8.3	7.5	8.4
2013	10.2	9.2	9.2	9.5	7.0	6.6	6.1	6.0	6.9	6.9	10.6	8.7
2014	11.7	9.7	9.9	7.8	6.8	5.8	6.7	6.3	6.8	6.7	11.0	8.7
2015	11.3	10.9	9.0	8.5	7.6	5.9	6.2	6.0	6.8	9.2	8.4	8.3
2016	10.4	10.9	8.5	8.4	6.2	7.3	7.2	6.3	6.6	8.8	9.0	11.0
2017	9.0	10.0	10.7	9.3	8.1	7.8	5.8	6.6	5.7	8.4	9.2	9.7
2018	11.3	10.1	10.1	9.4	6.9	6.3	6.3	7.1	6.9	9.0	8.9	7.9
2019	11.4	10.4	9.4	8.4	6.5	6.2	6.3	6.4	6.6	7.6	8.9	8.7
2020	9.0	10.0	9.2	8.7	7.0	6.8	6.5	6.6	8.0	8.1	10.3	9.8
2021	8.2	9.7	10.1	8.1	7.0	8.2	6.1	5.9	7.1	6.9	7.8	10.9
2022	9.7	11.2	9.6	8.2	6.3	6.8	6.9	6.4	7.0	7.0	8.6	10.5
2023	8.0	11.3	10.1	8.6	6.1	5.4	5.7	6.5	5.8	8.2	8.8	7.0
2024	9.2	8.7	8.9	7.9	6.1	6.6	5.4	6.2	5.6	8.2	8.7	8.9
2025	11.9	10.0	10.7	9.0	7.1	7.2	6.2	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	M	M	M	M	70.22	71.25	55.13	44.36	31.40
2005	37.91	M	M	M	M	78.61	82.39	M	55.90	58.99	51.21	31.87
2006	40.84	28.56	35.93	44.27	59.68	69.68	75.56	73.95	61.63	56.00	43.08	40.41
2007	34.97	25.29	40.80	49.84	66.18	78.97	78.48	81.81	74.75	65.48	45.59	34.89
2008	36.51	31.90	38.34	54.33	62.85	75.76	79.21	75.37	70.37	57.37	44.53	37.36
2009	25.76	36.91	41.54	54.92	65.05	70.22	74.22	77.16	69.69	55.25	49.72	34.75
2010	30.30	32.50	45.79	59.05	67.23	74.49	82.67	80.25	69.62	59.25	47.75	32.43
2011	28.02	31.84	38.63	51.07	61.33	73.84	83.98	78.87	70.28	58.40	52.94	41.77
2012	37.06	38.24	51.57	54.22	68.38	78.40	84.00	80.59	70.65	58.25	45.48	41.14
2013	37.63	31.57	39.84	51.13	66.01	71.59	78.47	76.45	69.44	59.36	45.00	33.08
2014	27.08	26.09	34.31	50.97	63.58	72.51	75.76	75.22	70.14	58.87	44.11	38.45
2015	28.96	20.03	36.78	53.37	68.48	69.72	78.56	76.22	74.52	59.10	52.85	46.96
2016	34.32	37.21	45.22	47.45	66.15	75.64	82.62	83.26	75.57	62.26	53.82	36.18
2017	35.72	41.37	39.55	55.68	61.36	74.31	78.00	76.21	72.38	65.49	47.73	31.22
2018	31.64	40.63	38.26	45.59	68.34	73.27	81.96	81.16	73.61	57.48	41.24	38.47
2019	30.42	34.22	38.79	49.88	60.39	71.61	81.45	77.35	72.58	60.56	41.94	38.69
2020	37.00	34.50	44.74	49.75	60.48	76.90	85.20	80.23	70.75	58.42	53.28	39.32
2021	34.02	30.92	48.40	51.36	64.24	77.93	77.08	81.85	72.71	63.54	48.49	44.89
2022	27.68	34.95	42.61	51.25	65.68	75.76	80.06	79.66	71.14	58.34	49.95	38.32
2023	36.18	40.05	41.26	55.05	63.61	71.89	79.96	75.05	72.32	61.60	47.42	42.66
2024	34.38	40.29	45.39	53.51	67.91	74.98	80.22	77.83	72.01	63.77	51.02	38.63
2025	29.96	31.23	46.42	52.80	60.55	76.27	82.39	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	M	M	M	M	67.35	68.53	52.54	40.43	28.14
2005	29.20	M	M	M	M	61.58	66.52	M	53.40	47.72	36.45	23.71
2006	29.23	25.25	31.35	42.67	56.51	64.98	71.33	69.72	59.21	55.04	41.82	38.01
2007	23.63	13.73	27.38	35.93	46.02	59.10	61.08	64.47	56.25	51.83	33.30	25.33
2008	25.06	19.63	28.24	38.46	44.73	59.21	63.11	60.53	55.64	42.47	33.90	23.08
2009	13.67	21.64	28.06	37.72	44.92	55.42	59.33	63.10	55.23	42.70	36.49	25.68
2010	21.06	23.54	32.81	40.86	49.98	60.65	65.86	64.82	55.00	45.97	34.96	24.12
2011	16.92	19.26	27.29	36.95	47.19	58.91	67.24	63.77	57.26	45.57	39.83	30.67
2012	25.11	28.08	35.87	38.22	51.46	60.97	66.67	63.39	55.29	45.29	33.67	31.33
2013	24.62	21.02	28.54	35.56	46.88	58.05	65.16	61.53	54.39	46.00	32.10	22.92
2014	14.11	14.91	19.96	34.91	46.40	56.94	60.90	60.81	54.24	48.90	31.09	29.69
2015	15.29	6.13	23.86	37.63	48.39	54.69	61.60	60.85	59.44	46.07	38.21	36.08
2016	22.05	24.10	32.17	33.75	48.56	57.72	65.79	67.34	59.57	48.66	38.32	26.83
2017	26.65	27.74	27.64	40.63	47.64	58.95	63.52	60.80	56.34	49.73	33.41	21.33
2018	18.58	25.98	28.34	31.92	50.15	58.29	66.89	67.05	59.67	44.92	32.69	29.86
2019	17.71	21.86	25.82	36.90	44.99	55.19	66.01	62.98	57.60	46.03	30.44	28.13
2020	27.78	24.64	33.46	36.16	45.14	58.90	68.38	63.15	56.20	44.95	39.50	29.93
2021	26.75	19.65	30.48	37.72	46.56	61.85	63.81	67.02	57.92	52.41	34.44	32.91
2022	12.93	19.89	29.46	37.07	48.81	57.82	63.75	64.12	57.25	42.25	36.76	29.46
2023	29.35	26.24	30.76	40.08	46.54	57.88	64.80	61.63	57.57	49.82	34.42	34.74
2024	26.03	27.42	33.58	40.33	52.42	60.14	64.99	63.40	58.63	47.83	40.10	28.14
2025	19.79	20.65	30.38	37.66	46.71	60.05	66.05	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	M	M	M	M	68.78	69.89	53.83	42.39	29.77
2005	33.55	M	M	M	M	70.10	74.46	M	54.65	53.35	43.83	27.79
2006	35.03	26.90	33.64	43.47	58.09	67.33	73.44	71.83	60.42	55.52	42.45	39.21
2007	29.30	19.51	34.09	42.89	56.10	69.04	69.78	73.14	65.50	58.65	39.45	30.11
2008	30.79	25.76	33.29	46.39	53.79	67.48	71.16	67.95	63.00	49.92	39.22	30.22
2009	19.72	29.28	34.80	46.32	54.99	62.82	66.78	70.13	62.46	48.97	43.10	30.21
2010	25.68	28.02	39.30	49.95	58.60	67.57	74.26	72.53	62.31	52.61	41.35	28.27
2011	22.47	25.55	32.96	44.01	54.26	66.38	75.61	71.32	63.77	51.99	46.38	36.22
2012	31.09	33.16	43.72	46.22	59.92	69.69	75.33	71.99	62.97	51.77	39.58	36.24
2013	31.13	26.29	34.19	43.35	56.45	64.82	71.82	68.99	61.91	52.68	38.55	28.00
2014	20.59	20.50	27.13	42.94	54.99	64.72	68.33	68.01	62.19	53.88	37.60	34.07
2015	22.12	13.08	30.32	45.50	58.43	62.20	70.08	68.53	66.98	52.59	45.53	41.52
2016	28.19	30.65	38.69	40.60	57.36	66.68	74.20	75.30	67.57	55.46	46.07	31.50
2017	31.19	34.55	33.59	48.16	54.50	66.63	70.76	68.51	64.36	57.61	40.57	26.27
2018	25.11	33.31	33.30	38.75	59.25	65.78	74.42	74.11	66.64	51.20	36.96	34.16
2019	24.07	28.04	32.30	43.39	52.69	63.40	73.73	70.17	65.09	53.30	36.19	33.41
2020	32.39	29.57	39.10	42.96	52.81	67.90	76.79	71.69	63.48	51.69	46.39	34.62
2021	30.39	25.29	39.44	44.54	55.40	69.89	70.45	74.44	65.32	57.98	41.47	38.90
2022	20.31	27.42	36.04	44.16	57.25	66.79	71.91	71.89	64.19	50.30	43.35	33.89
2023	32.77	33.14	36.01	47.57	55.07	64.89	72.38	68.34	64.95	55.71	40.92	38.70
2024	30.21	33.86	39.49	46.92	60.16	67.56	72.61	70.62	65.32	55.80	45.56	33.38
2025	24.88	25.94	38.40	45.23	53.63	68.16	74.22	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	M	M	M	M	73.5%	78.2%	82.1%	74.4%	75.3%
2005	78.8%	77.9%	75.2%	71.1%	70.4%	69.4%	67.4%	69.8%	69.7%	76.9%	70.1%	74.6%
2006	77.7%	69.5%	65.0%	69.9%	70.3%	69.3%	72.0%	70.6%	75.3%	73.3%	77.6%	71.5%
2007	74.3%	69.5%	68.4%	69.9%	73.6%	71.6%	77.9%	68.2%	67.0%	71.7%	72.5%	75.0%
2008	70.8%	73.4%	70.5%	68.7%	66.9%	74.5%	74.0%	75.1%	78.4%	72.0%	77.5%	77.5%
2009	75.2%	72.8%	69.9%	69.5%	67.0%	75.5%	74.2%	73.5%	75.4%	75.4%	78.9%	73.3%
2010	77.6%	77.2%	71.8%	62.8%	70.5%	73.7%	68.4%	71.9%	72.0%	68.0%	75.1%	72.4%
2011	73.7%	71.1%	72.3%	76.9%	82.1%	71.5%	64.1%	71.4%	79.1%	77.1%	70.9%	75.7%
2012	73.3%	73.0%	70.8%	62.8%	70.1%	63.7%	63.0%	65.7%	69.6%	76.7%	70.4%	76.5%
2013	70.9%	73.4%	68.5%	68.7%	69.3%	75.7%	74.5%	71.5%	73.5%	75.6%	65.2%	73.0%
2014	69.7%	67.5%	64.6%	69.4%	70.4%	75.3%	70.1%	73.6%	74.2%	78.4%	68.5%	74.6%
2015	66.9%	68.6%	65.9%	67.8%	64.5%	78.9%	66.5%	72.9%	74.8%	68.4%	71.3%	77.5%
2016	71.2%	68.6%	71.8%	68.3%	65.4%	58.7%	62.9%	69.4%	69.2%	71.3%	71.8%	73.4%
2017	76.6%	70.0%	67.4%	72.6%	74.6%	68.9%	73.9%	73.6%	76.6%	72.6%	70.1%	72.1%
2018	72.4%	74.2%	67.7%	71.1%	71.2%	72.5%	68.2%	75.2%	77.8%	75.0%	76.0%	79.2%
2019	72.6%	74.2%	68.1%	76.2%	80.5%	73.1%	75.1%	73.7%	74.0%	75.1%	72.2%	76.3%
2020	75.5%	72.2%	73.7%	68.0%	71.1%	67.3%	68.9%	70.7%	68.5%	72.9%	67.5%	74.0%
2021	74.4%	70.5%	61.0%	71.4%	63.9%	68.1%	76.4%	73.5%	72.3%	81.8%	71.7%	71.1%
2022	70.4%	68.9%	71.5%	70.4%	74.4%	65.8%	68.4%	73.8%	76.3%	72.8%	71.9%	74.6%
2023	81.6%	69.4%	72.7%	70.2%	66.8%	74.1%	75.6%	76.4%	75.9%	73.4%	69.6%	80.6%
2024	79.4%	71.5%	72.8%	75.4%	75.9%	76.0%	74.2%	75.0%	81.4%	68.7%	73.3%	75.9%
2025	69.2%	72.6%	68.0%	68.3%	78.1%	73.2%	70.1%	M	M	M	M	M