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	M
2007	M	0.00	M	M	M	M	M	M	M	M	M	0.00
2008	0.41	0.62	0.61	0.20	0.67	0.48	0.33	3.35	1.83	2.43	0.78	0.53
2009	0.71	0.13	0.55	0.38	0.01	0.16	1.76	1.42	1.39	1.14	1.13	0.36
2010	2.35	2.37	0.20	0.29	0.50	1.06	0.83	3.35	1.07	0.44	0.07	0.39
2011	0.24	0.11	0.16	0.15	0.07	2.05	1.23	2.16	0.14	0.18	0.86	0.66
2012	0.84	1.63	1.73	1.37	0.65	0.84	0.74	2.66	0.37	2.59	0.66	0.02
2013	0.22	0.11	0.08	0.17	0.44	0.59	1.89	1.28	0.50	0.82	0.67	0.35
2014	0.55	0.45	0.72	0.49	0.38	0.54	1.89	1.09	0.66	1.67	0.54	1.24
2015	0.76	1.18	0.83	0.56	0.39	0.91	2.44	3.60	0.76	1.46	0.55	1.16
2016	0.66	1.63	1.62	0.73	1.01	1.50	1.19	3.61	1.92	1.98	0.63	0.27
2017	0.60	0.87	1.10	0.23	1.24	0.86	2.42	1.26	0.77	0.65	0.89	0.58
2018	M	0.08	0.34	0.47	1.11	3.62	0.16	0.09	0.38	0.35	0.93	0.26
2019	0.74	0.13	0.10	0.34	0.48	0.58	1.10	0.62	1.81	1.46	0.63	0.64
2020	0.96	0.46	0.42	0.63	0.48	1.14	4.01	3.80	2.29	0.64	0.76	0.46
2021	0.45	0.41	0.73	0.60	0.72	2.29	5.32	3.03	1.43	0.57	0.80	0.35
2022	0.84	1.06	0.32	0.22	2.46	0.44	0.80	0.64	0.24	1.31	0.67	0.61
2023	0.45	0.40	0.26	0.77	0.37	1.12	0.11	0.04	1.24	0.28	0.71	0.49
2024	0.48	0.41	0.41	0.31	0.82	0.58	1.59	0.44	0.46	0.75	0.68	0.72
2025	0.49	0.63	0.12	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	M	M	M	M	6.6	9.6	7.4	6.9	6.8
2005	7.9	6.1	6.6	8.4	9.2	8.2	7.1	8.8	7.5	8.3	8.5	5.9
2006	5.1	7.4	7.8	8.5	7.8	8.1	7.2	6.9	6.6	8.1	7.9	7.3
2007	7.4	5.8	7.3	7.6	8.1	6.9	7.0	7.0	7.6	7.8	7.7	5.3
2008	5.8	6.2	6.4	7.9	7.7	7.0	7.0	8.4	7.7	8.0	6.0	7.5
2009	7.0	6.1	8.0	7.1	7.8	7.2	6.2	7.0	8.2	7.5	7.0	6.6
2010	6.3	4.9	7.8	7.5	7.7	7.4	7.1	6.8	6.5	8.0	7.6	6.7
2011	5.7	8.4	5.2	6.6	7.9	7.2	6.3	7.4	8.0	6.6	8.4	7.8
2012	7.6	6.8	7.0	8.0	8.0	6.7	6.9	7.8	7.6	8.8	7.5	5.9
2013	6.0	6.2	6.1	8.1	7.8	6.7	7.3	6.4	8.9	7.8	8.3	7.4
2014	7.3	5.8	5.8	7.5	8.1	6.7	6.6	7.1	7.5	7.0	8.4	5.4
2015	6.5	7.5	6.8	7.8	7.6	6.8	6.7	8.4	8.7	7.1	7.6	6.7
2016	5.7	6.2	5.9	8.4	7.6	6.9	6.6	7.0	9.1	4.8	6.3	13.0
2017	24.3	24.9	19.5	16.5	16.6	7.9	6.6	7.7	7.1	7.3	7.5	5.9
2018	M	6.2	6.6	7.2	7.6	7.3	6.6	7.8	9.4	7.0	6.9	5.4
2019	7.0	6.4	7.8	6.7	8.3	7.3	7.4	7.6	8.1	8.3	8.9	5.9
2020	6.4	6.8	8.0	7.7	8.1	5.7	5.1	7.7	7.0	9.8	8.6	6.0
2021	6.2	7.5	6.8	7.8	8.0	7.8	7.3	7.5	6.9	8.0	7.6	7.6
2022	7.8	6.1	6.8	7.4	8.1	6.3	7.0	6.8	8.1	9.0	9.8	6.4
2023	4.9	6.3	6.7	8.1	8.1	7.0	6.1	6.7	7.5	9.2	8.0	7.9
2024	6.7	7.0	7.1	8.0	7.9	7.9	7.1	7.7	7.1	8.3	8.4	7.4
2025	7.5	6.8	4.5	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	M	M	M	M	53.99	45.52	31.19	14.07	-6.95
2005	-0.53	6.83	19.43	39.89	49.19	59.75	67.04	M	33.10	42.72	23.63	18.41
2006	6.90	9.64	14.49	35.62	48.76	58.98	60.96	60.82	52.72	34.89	3.12	16.03
2007	7.68	-0.89	10.07	38.97	51.29	63.45	71.34	60.91	47.90	41.24	19.23	2.59
2008	1.25	-2.56	10.83	32.85	52.10	63.51	72.16	66.20	52.08	44.03	23.38	-2.91
2009	0.45	4.21	8.44	34.93	44.18	60.75	67.69	67.42	60.81	36.54	21.67	3.29
2010	-0.15	15.96	31.83	43.68	49.11	67.31	70.66	66.36	52.97	43.24	21.83	0.01
2011	-3.79	6.96	13.48	29.06	52.26	62.07	70.55	67.30	60.59	43.19	14.45	15.56
2012	3.88	17.37	17.00	34.03	57.57	63.10	75.69	71.37	62.63	36.04	9.91	-5.71
2013	-3.21	12.69	12.16	25.83	55.33	67.00	68.79	68.54	63.08	44.31	17.88	-5.95
2014	4.94	-1.44	11.50	33.35	51.56	66.19	75.14	70.89	55.69	38.54	14.08	7.08
2015	1.84	4.16	20.38	41.25	58.85	68.19	68.06	67.80	57.49	40.31	24.94	10.97
2016	7.78	7.90	20.18	31.97	55.63	67.69	71.85	67.94	56.89	35.22	27.61	2.56
2017	13.90	10.25	12.98	34.44	58.20	64.39	71.22	73.18	61.02	40.39	13.40	14.02
2018	M	9.54	17.81	32.13	56.11	64.30	70.61	67.00	47.68	39.19	17.35	11.81
2019	1.55	-0.49	33.92	39.12	48.29	62.06	68.80	63.25	56.40	40.89	20.46	1.86
2020	-2.36	5.05	13.60	29.39	44.75	61.30	68.92	65.32	55.56	35.83	16.76	9.88
2021	8.91	-4.93	16.19	32.97	50.61	67.74	71.75	67.35	57.11	44.75	21.78	-6.53
2022	-1.70	-1.70	14.20	31.08	49.49	67.28	71.29	71.89	65.50	46.79	19.63	-1.88
2023	10.30	-0.27	13.19	42.54	67.99	68.77	73.34	71.95	63.71	46.54	27.02	22.73
2024	-1.29	13.69	19.95	40.23	55.89	60.08	73.31	72.26	61.57	41.53	19.64	7.12
2025	11.69	2.19	6.38	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	M	M	M	M	50.77	43.48	27.93	10.49	-10.69
2005	-15.72	-10.69	-0.60	23.72	31.62	42.98	52.30	M	30.90	30.20	12.98	10.00
2006	-8.66	-0.22	7.46	31.17	44.24	54.27	56.87	55.55	50.99	34.76	0.77	11.88
2007	-7.45	-18.24	-8.30	21.95	33.69	45.43	56.05	45.49	36.62	29.80	8.03	-10.93
2008	-13.24	-17.29	-8.11	13.17	34.30	46.62	54.01	51.83	38.23	29.27	12.07	-16.55
2009	-15.13	-15.12	-8.99	18.85	26.95	43.64	50.14	50.94	46.50	26.65	8.03	-9.38
2010	-13.14	-2.12	13.40	24.99	31.94	47.86	55.38	51.33	39.90	30.86	9.45	-12.40
2011	-17.40	-9.23	-5.63	12.45	33.66	45.30	55.01	51.45	43.50	31.28	0.30	0.20
2012	-11.64	-1.30	-2.22	14.24	39.04	46.83	57.54	52.98	44.80	26.24	-1.46	-18.30
2013	-16.95	-2.36	-7.54	9.57	35.31	49.39	52.40	51.65	45.66	31.58	4.99	-19.98
2014	-13.95	-18.70	-10.85	12.83	32.54	45.82	56.16	50.63	40.12	30.53	2.02	-7.77
2015	-12.48	-15.22	-0.49	20.52	36.06	48.40	53.68	52.21	40.57	30.91	13.22	0.55
2016	-3.34	-7.62	3.61	16.24	37.49	49.72	56.57	52.60	41.78	28.72	14.34	-10.53
2017	-7.16	-6.48	-5.51	15.74	37.68	47.64	55.51	53.66	44.05	30.59	0.82	-0.45
2018	M	-15.05	-1.82	11.56	35.50	47.66	52.83	50.15	31.15	25.46	7.91	-1.82
2019	-12.49	-17.34	14.93	22.79	30.85	44.85	52.58	48.41	41.40	28.88	8.56	-13.32
2020	-16.15	-12.83	-7.67	12.78	30.63	44.78	53.49	53.00	41.43	26.76	2.92	-3.70
2021	-5.49	-21.87	-4.61	14.10	32.58	48.05	55.21	51.00	44.17	32.34	10.59	-17.55
2022	-14.17	-21.05	-5.20	14.04	33.94	49.72	55.06	53.30	44.14	31.32	6.69	-14.77
2023	-1.41	-16.28	-7.32	24.71	44.80	49.50	55.18	53.90	46.50	32.04	15.40	5.97
2024	-16.66	-3.62	-3.24	23.54	36.90	45.63	57.14	53.30	44.15	28.23	8.69	-5.32
2025	-6.03	-12.30	-8.75	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	M	M	M	M	52.38	44.50	29.56	12.28	-8.82
2005	-8.13	-1.93	9.42	31.80	40.40	51.36	59.67	M	32.00	36.46	18.31	14.20
2006	-0.88	4.71	10.97	33.40	46.50	56.63	58.92	58.19	51.86	34.83	1.95	13.95
2007	0.11	-9.57	0.88	30.46	42.49	54.44	63.69	53.20	42.26	35.52	13.63	-4.17
2008	-6.00	-9.92	1.36	23.01	43.20	55.07	63.09	59.01	45.16	36.65	17.72	-9.73
2009	-7.34	-5.45	-0.28	26.89	35.56	52.19	58.92	59.18	53.65	31.59	14.85	-3.05
2010	-6.64	6.92	22.61	34.33	40.53	57.59	63.02	58.85	46.43	37.05	15.64	-6.19
2011	-10.60	-1.14	3.92	20.76	42.96	53.68	62.78	59.38	52.04	37.24	7.37	7.88
2012	-3.88	8.03	7.39	24.14	48.30	54.97	66.62	62.18	53.71	31.14	4.23	-12.00
2013	-10.08	5.16	2.31	17.70	45.32	58.19	60.60	60.09	54.37	37.94	11.43	-12.97
2014	-4.51	-10.07	0.33	23.09	42.05	56.01	65.65	60.76	47.91	34.53	8.05	-0.35
2015	-5.32	-5.53	9.94	30.88	47.46	58.30	60.87	60.00	49.03	35.61	19.08	5.76
2016	2.22	0.14	11.90	24.10	46.56	58.70	64.21	60.27	49.34	31.97	20.97	-3.99
2017	3.37	1.89	3.74	25.09	47.94	56.01	63.37	63.42	52.53	35.49	7.11	6.78
2018	M	-2.75	8.00	21.85	45.80	55.98	61.72	58.57	39.42	32.33	12.63	5.00
2019	-5.47	-8.91	24.42	30.95	39.57	53.46	60.69	55.83	48.90	34.89	14.51	-5.73
2020	-9.25	-3.89	2.97	21.08	37.69	53.04	61.21	59.16	48.50	31.29	9.84	3.09
2021	1.71	-13.40	5.79	23.54	41.60	57.90	63.48	59.18	50.64	38.54	16.18	-12.04
2022	-7.93	-11.37	4.50	22.56	41.71	58.50	63.18	62.60	54.82	39.05	13.16	-8.33
2023	4.45	-8.28	2.94	33.62	56.39	59.13	64.26	62.92	55.11	39.29	21.21	14.35
2024	-8.98	5.04	8.36	31.89	46.39	52.86	65.22	62.78	52.86	34.88	14.16	0.90
2025	2.83	-5.06	-1.19	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	M	M	M	M	75.9%	76.8%	85.3%	85.0%	79.1%
2005	77.5%	80.2%	77.0%	73.9%	62.0%	66.9%	69.4%	70.7%	78.9%	76.5%	86.3%	86.6%
2006	82.4%	78.6%	75.5%	66.3%	69.6%	65.9%	68.8%	70.9%	74.2%	73.1%	81.9%	80.4%
2007	78.9%	73.6%	71.5%	69.1%	68.4%	58.3%	70.1%	70.3%	80.7%	77.5%	86.2%	80.2%
2008	79.4%	74.9%	70.4%	63.7%	63.8%	64.8%	59.7%	72.1%	78.0%	78.2%	88.7%	76.6%
2009	72.2%	74.6%	70.2%	69.4%	63.1%	68.0%	68.0%	70.1%	76.0%	80.6%	85.9%	76.5%
2010	78.5%	80.4%	61.3%	67.8%	66.8%	58.8%	70.0%	74.2%	79.6%	75.1%	78.5%	79.9%
2011	76.9%	73.4%	68.7%	72.0%	63.2%	64.2%	69.3%	70.7%	66.5%	81.8%	83.0%	80.5%
2012	77.2%	71.8%	72.8%	68.0%	56.1%	67.6%	59.6%	66.9%	66.8%	79.8%	82.1%	75.7%
2013	75.7%	79.0%	70.0%	65.9%	58.1%	67.5%	64.3%	71.4%	70.0%	76.8%	80.9%	73.7%
2014	76.8%	73.4%	67.1%	63.9%	60.6%	58.2%	61.2%	63.0%	68.0%	82.3%	80.8%	79.8%
2015	76.7%	71.1%	69.1%	58.6%	48.0%	58.4%	73.2%	72.1%	70.0%	86.8%	89.1%	89.2%
2016	85.5%	82.1%	78.4%	74.3%	68.9%	69.9%	69.6%	74.0%	75.7%	88.4%	89.1%	84.6%
2017	84.2%	81.5%	76.5%	68.3%	63.4%	65.0%	68.5%	64.5%	73.4%	85.2%	86.6%	89.7%
2018	M	76.2%	72.8%	69.4%	67.0%	75.0%	69.5%	68.0%	64.7%	74.0%	84.6%	81.4%
2019	75.7%	73.0%	65.3%	68.2%	62.9%	67.5%	66.5%	74.2%	74.6%	78.6%	80.8%	77.7%
2020	79.0%	75.4%	67.7%	71.4%	69.7%	68.8%	74.4%	79.2%	75.4%	77.8%	80.0%	77.5%
2021	77.7%	69.9%	70.4%	66.2%	64.6%	65.9%	68.4%	71.7%	81.2%	75.7%	81.2%	75.5%
2022	75.4%	73.8%	75.8%	64.8%	66.6%	60.0%	65.5%	67.5%	61.6%	73.1%	79.2%	74.3%
2023	82.5%	73.9%	71.0%	66.7%	51.1%	63.6%	62.0%	69.3%	67.6%	75.3%	84.5%	78.4%
2024	73.8%	72.8%	67.0%	67.7%	63.0%	63.9%	66.3%	64.6%	70.8%	73.4%	81.4%	81.1%
2025	76.5%	71.9%	76.2%	M	M	M	M	M	M	M	M	M