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	0.02
2007	0.05	0.02	0.44	1.77	2.02	1.19	3.15	1.16	1.23	1.96	3.10	3.79
2008	2.20	4.62	2.99	2.09	2.30	4.11	4.74	3.15	2.58	1.66	2.97	5.17
2009	2.02	2.41	2.46	4.45	2.45	2.56	4.67	4.42	1.31	3.18	1.31	3.02
2010	1.09	1.15	2.41	1.16	1.47	6.27	3.24	3.52	3.00	2.70	2.49	1.41
2011	1.68	1.76	4.31	3.62	4.55	2.06	0.85	2.65	3.81	4.26	1.54	1.97
2012	2.87	1.51	1.43	1.53	1.67	2.92	2.60	3.12	4.64	4.99	1.15	2.83
2013	3.04	4.18	0.83	4.04	3.66	4.21	7.23	3.51	2.34	3.71	1.17	2.59
2014	1.69	2.23	1.14	4.03	1.85	3.78	3.10	0.43	3.54	2.81	1.86	1.51
2015	1.44	1.24	0.66	2.99	1.97	7.13	0.67	1.64	2.37	3.31	1.27	2.01
2016	4.73	4.97	3.44	1.46	0.96	1.37	2.00	2.10	2.34	1.15	1.96	3.13
2017	2.85	1.86	2.92	3.88	6.47	3.19	2.30	0.84	1.05	1.92	2.05	1.43
2018	2.35	2.03	0.88	5.68	2.07	2.36	1.93	5.08	2.23	2.79	4.33	2.39
2019	2.50	2.62	2.61	3.22	3.95	4.14	2.91	2.14	1.38	5.50	1.52	3.17
2020	4.98	2.34	2.81	2.29	2.18	2.05	3.10	3.77	1.92	1.88	2.53	2.29
2021	1.26	1.45	1.65	2.10	0.80	3.10	3.95	0.45	5.41	4.99	1.53	2.32
2022	1.92	2.88	2.18	1.73	1.07	2.36	2.32	2.51	2.34	1.21	2.72	4.94
2023	2.90	2.68	3.76	4.27	1.88	4.03	3.81	1.79	0.48	1.62	1.96	2.91
2024	3.49	1.27	2.07	5.24	2.42	3.13	7.69	2.55	2.22	0.83	1.66	2.66
2025	0.73	2.71	1.81	2.12	3.85	1.12	1.74	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	0.0	M	0.0	M	0.0
2005	0.0	M	M	M	M	0.0	0.0	M	M	0.0	0.0	0.0
2006	0.0	0.0	0.0	M	0.0	M	M	M	M	M	M	0.0
2007	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2008	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2009	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2010	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2011	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2012	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2013	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2014	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2015	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2016	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2017	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2018	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2019	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2020	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2021	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2022	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2023	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2024	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2025	0.0	0.0	0.0	0.0	0.0	0.0	0.0	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	70.84	69.06	54.63	43.31	29.82
2005	36.73	M	M	M	M	78.86	83.33	M	59.70	58.76	48.96	31.81
2006	39.38	27.68	35.81	46.68	61.67	70.56	75.27	74.70	60.30	55.27	42.55	39.87
2007	34.55	25.29	40.95	50.05	67.37	78.27	78.33	80.07	73.36	63.63	44.31	34.39
2008	35.30	31.96	36.65	58.11	62.61	75.45	79.16	76.22	70.49	56.54	44.41	35.00
2009	25.69	34.91	42.02	54.78	64.46	71.28	74.44	77.69	70.54	54.19	50.43	34.86
2010	29.55	32.88	48.53	60.61	69.56	74.83	82.75	79.47	69.22	58.58	47.82	31.39
2011	28.13	31.43	39.14	51.81	64.23	74.81	84.75	79.62	71.16	58.34	50.80	40.44
2012	36.33	38.42	53.52	53.89	70.43	77.58	83.97	79.53	70.41	57.24	45.01	40.11
2013	36.04	31.61	40.09	51.24	68.17	73.30	79.29	77.88	68.87	59.43	43.69	31.79
2014	25.94	26.39	34.13	50.98	65.28	75.34	76.39	75.75	70.09	58.41	42.43	37.79
2015	28.06	19.41	36.57	53.43	69.56	71.07	79.11	76.39	74.68	57.33	51.16	45.52
2016	33.77	36.45	43.85	48.33	67.67	76.90	82.50	83.55	74.89	60.09	51.95	35.86
2017	35.14	39.58	38.17	56.44	61.96	73.82	78.02	75.60	73.81	63.80	45.89	30.30
2018	30.52	37.25	39.23	45.81	70.87	73.90	81.41	80.47	72.93	55.03	40.77	37.78
2019	29.28	32.64	37.79	50.49	61.00	72.63	81.55	77.17	70.74	58.73	40.91	37.65
2020	36.19	34.00	44.32	49.97	61.93	77.95	85.10	79.91	70.14	55.95	51.65	37.72
2021	33.21	30.46	47.31	53.45	66.00	78.29	77.05	81.85	72.08	61.89	47.26	41.03
2022	27.89	33.11	41.91	50.67	68.27	75.39	80.32	80.11	71.26	58.93	48.10	37.22
2023	35.92	38.42	40.38	55.91	65.65	74.03	79.97	75.72	73.07	60.47	46.01	42.12
2024	33.53	40.50	45.74	54.01	69.15	75.38	80.52	77.79	73.33	62.01	50.31	37.50
2025	29.65	30.74	44.75	53.60	63.21	76.79	82.94	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	68.67	67.26	52.30	39.63	26.88
2005	28.69	M	M	M	M	63.88	68.24	M	56.80	48.01	37.00	24.47
2006	29.57	23.83	31.24	45.35	58.42	65.93	71.68	71.64	58.70	54.38	40.97	37.20
2007	23.86	13.78	28.35	39.01	51.01	61.21	62.72	65.61	58.18	52.00	33.72	25.36
2008	25.41	19.85	25.95	42.77	47.12	60.24	64.89	61.90	57.97	44.02	35.47	22.28
2009	13.80	21.99	29.35	40.13	49.36	57.81	60.83	64.11	57.86	43.90	40.84	25.49
2010	19.82	23.51	35.47	44.65	54.23	60.97	67.04	66.14	56.11	45.85	36.87	22.68
2011	17.72	19.39	27.57	39.30	52.00	60.38	68.55	65.08	59.11	47.26	40.71	30.76
2012	25.57	28.71	37.17	39.39	55.08	62.07	68.66	64.12	55.90	46.53	35.95	31.09
2013	24.48	21.65	29.07	37.48	51.89	59.52	66.25	62.87	55.23	47.61	32.38	22.55
2014	13.14	15.76	20.29	37.65	51.03	60.85	61.42	62.77	55.59	46.78	32.41	29.60
2015	14.63	5.76	24.44	38.89	53.05	57.97	63.35	63.24	60.54	45.63	39.70	36.85
2016	22.29	23.51	32.47	36.21	51.56	59.06	66.26	67.89	60.28	49.02	39.52	27.09
2017	27.21	28.02	26.55	41.92	48.51	59.20	63.94	62.10	59.01	50.22	35.02	20.21
2018	17.93	24.38	28.22	33.34	54.38	60.93	66.68	68.01	60.82	43.64	32.58	29.60
2019	15.73	20.68	26.64	38.44	47.44	58.18	66.63	63.90	57.96	47.58	30.83	28.13
2020	26.52	23.71	33.46	37.23	47.81	60.53	69.72	65.20	56.63	45.04	39.73	29.01
2021	25.94	19.99	31.03	40.43	49.35	62.51	64.56	68.31	57.64	52.70	35.98	31.70
2022	12.76	19.61	29.86	38.87	53.33	58.76	64.81	65.83	58.15	45.57	37.72	28.87
2023	29.17	25.01	30.40	42.22	49.65	60.97	65.53	62.21	59.77	49.69	35.34	34.83
2024	25.65	28.79	34.58	41.75	54.95	61.92	65.98	63.95	60.11	47.26	40.55	28.44
2025	19.89	20.94	30.42	38.71	49.07	61.60	67.26	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	69.75	68.16	53.46	41.47	28.35
2005	32.71	M	M	M	M	71.37	75.79	M	58.25	53.38	42.98	28.14
2006	34.48	25.75	33.53	46.02	60.04	68.25	73.47	73.17	59.50	54.83	41.76	38.53
2007	29.20	19.53	34.65	44.53	59.19	69.74	70.53	72.84	65.77	57.66	39.02	29.87
2008	30.35	25.91	31.30	50.44	54.87	67.84	72.03	69.06	64.23	50.28	39.94	28.64
2009	19.75	28.45	35.69	47.46	56.91	64.55	67.63	70.90	64.20	49.05	45.63	30.18
2010	24.69	28.20	42.00	52.63	61.89	67.90	74.90	72.81	62.66	52.22	42.35	27.04
2011	22.92	25.41	33.36	45.56	58.11	67.59	76.65	72.35	65.13	52.80	45.76	35.60
2012	30.95	33.56	45.35	46.64	62.75	69.82	76.32	71.82	63.15	51.89	40.48	35.60
2013	30.26	26.63	34.58	44.36	60.03	66.41	72.77	70.37	62.05	53.52	38.04	27.17
2014	19.54	21.07	27.21	44.31	58.15	68.10	68.90	69.26	62.84	52.60	37.42	33.70
2015	21.34	12.59	30.50	46.16	61.31	64.52	71.23	69.82	67.61	51.48	45.43	41.19
2016	28.03	29.98	38.16	42.27	59.61	67.98	74.38	75.72	67.59	54.56	45.74	31.48
2017	31.18	33.80	32.36	49.18	55.24	66.51	70.98	68.85	66.41	57.01	40.46	25.26
2018	24.22	30.81	33.73	39.57	62.62	67.41	74.05	74.24	66.88	49.33	36.67	33.69
2019	22.50	26.66	32.21	44.46	54.22	65.41	74.09	70.53	64.35	53.16	35.87	32.89
2020	31.36	28.86	38.89	43.60	54.87	69.24	77.41	72.56	63.38	50.49	45.69	33.36
2021	29.57	25.23	39.17	46.94	57.67	70.40	70.80	75.08	64.86	57.30	41.62	36.37
2022	20.33	26.36	35.89	44.77	60.80	67.07	72.56	72.97	64.71	52.25	42.91	33.05
2023	32.55	31.71	35.39	49.07	57.65	67.50	72.75	68.97	66.42	55.08	40.68	38.47
2024	29.59	34.64	40.16	47.88	62.05	68.65	73.25	70.87	66.72	54.64	45.43	32.97
2025	24.77	25.84	37.59	46.15	56.14	69.20	75.10	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	64.2%	M	70.4%	M	90.9%
2005	79.3%	M	M	M	M	66.1%	67.0%	M	M	79.2%	75.8%	77.0%
2006	81.4%	71.2%	70.2%	M	42.8%	M	M	M	M	M	M	90.0%
2007	75.6%	69.4%	65.1%	67.8%	56.7%	62.6%	69.7%	68.0%	72.4%	79.7%	76.8%	80.4%
2008	76.9%	77.9%	71.2%	61.2%	64.1%	76.8%	73.8%	75.0%	80.1%	74.3%	79.7%	78.8%
2009	75.4%	73.6%	64.9%	60.6%	62.4%	71.3%	74.4%	75.1%	75.5%	79.2%	79.9%	74.7%
2010	77.4%	75.5%	60.9%	53.8%	65.2%	74.5%	71.0%	77.0%	78.0%	73.3%	76.1%	77.9%
2011	76.2%	71.7%	72.7%	72.1%	77.8%	69.7%	65.3%	73.6%	80.3%	80.3%	77.4%	79.4%
2012	77.7%	75.7%	70.6%	59.8%	65.0%	69.9%	67.5%	74.7%	75.8%	82.8%	75.3%	81.2%
2013	72.9%	73.5%	64.9%	64.6%	58.3%	67.6%	68.8%	65.7%	72.2%	72.9%	67.4%	74.6%
2014	70.7%	68.8%	63.0%	61.2%	60.5%	62.3%	64.1%	68.5%	72.2%	75.0%	71.2%	76.3%
2015	68.7%	68.7%	63.3%	60.3%	57.3%	69.4%	60.6%	67.9%	70.3%	67.6%	72.2%	77.1%
2016	71.4%	68.4%	70.7%	54.6%	54.5%	50.4%	58.4%	63.6%	65.5%	71.6%	72.7%	73.7%
2017	74.8%	69.0%	64.9%	62.8%	63.9%	63.3%	64.6%	65.0%	65.0%	67.5%	66.1%	69.0%
2018	69.9%	71.0%	59.3%	60.6%	53.3%	57.7%	58.2%	66.2%	69.1%	69.8%	70.0%	74.0%
2019	68.7%	71.0%	61.1%	63.0%	65.9%	56.9%	60.1%	59.1%	66.5%	69.0%	68.5%	71.9%
2020	72.4%	65.4%	65.2%	52.8%	54.2%	52.2%	56.7%	60.3%	63.0%	66.7%	66.3%	72.2%
2021	70.7%	64.1%	53.3%	59.9%	52.5%	62.5%	71.1%	69.3%	69.1%	79.6%	69.7%	72.1%
2022	65.7%	66.1%	66.4%	61.2%	57.6%	58.1%	60.9%	66.2%	71.9%	66.3%	68.7%	69.8%
2023	76.1%	66.3%	65.0%	59.1%	51.3%	61.4%	68.3%	68.2%	68.7%	70.6%	65.3%	76.5%
2024	74.0%	64.0%	64.6%	62.5%	65.3%	67.2%	67.2%	69.9%	72.1%	67.3%	68.5%	73.5%
2025	65.6%	67.8%	62.9%	57.1%	64.3%	63.9%	63.1%	M	M	M	M	M