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
2001	M	M	M	M	M	M	0.00	M	M	M	0.00	M
2002	M	0.00	M	M	M	M	M	M	M	M	M	M
2003	M	M	M	M	M	M	M	M	M	M	M	M
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	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
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
2026	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
2001	M	M	M	M	M	M	22.4	M	M	M	M	M
2002	M	18.6	M	M	M	M	M	M	M	M	M	M
2003	9.5	9.2	8.0	9.0	11.9	7.9	10.9	9.0	8.3	8.2	8.2	9.4
2004	M	M	M	M	9.5	7.8	11.7	7.5	10.3	10.4	8.9	11.8
2005	8.6	10.6	9.7	9.1	10.8	9.9	9.9	9.6	10.2	9.7	10.4	9.0
2006	9.6	9.2	10.3	9.7	9.3	8.5	10.0	11.1	8.6	10.2	8.8	8.7
2007	7.9	7.3	11.6	8.1	10.2	9.8	12.3	10.6	8.4	9.0	9.6	8.3
2008	7.6	8.1	10.8	12.3	8.1	9.6	10.2	12.6	8.6	10.6	10.2	10.2
2009	7.2	8.5	10.2	9.5	9.7	8.5	10.6	11.1	9.4	8.2	9.6	12.8
2010	9.8	10.4	8.8	10.5	10.1	10.1	11.0	11.0	8.4	8.3	8.4	11.4
2011	8.3	10.7	8.7	10.0	9.6	12.2	13.0	9.4	7.6	7.9	7.1	9.4
2012	7.4	9.7	8.7	8.1	7.0	8.8	13.3	9.3	8.0	8.5	11.4	6.8
2013	6.5	9.9	9.3	8.9	8.9	9.4	8.3	12.1	8.5	7.6	10.5	7.9
2014	9.4	8.5	10.7	8.9	11.1	8.3	8.8	10.9	6.9	8.5	8.6	9.2
2015	6.4	M	M	9.7	12.1	8.7	13.9	10.4	8.9	10.2	10.3	11.4
2016	8.5	11.2	11.1	10.7	9.8	11.0	13.3	15.0	11.0	8.6	10.0	11.4
2017	10.1	9.5	12.1	9.9	10.2	13.0	13.0	15.1	13.6	9.9	12.2	9.5
2018	13.0	14.1	12.4	10.4	11.1	9.2	10.6	13.1	11.4	9.4	8.0	9.0
2019	9.0	9.8	12.4	10.1	11.1	10.0	11.5	12.9	10.5	10.6	9.7	10.8
2020	9.9	9.9	12.7	9.4	11.3	11.2	14.5	13.5	9.6	11.4	10.9	9.8
2021	8.6	9.2	12.2	8.9	13.3	12.3	14.2	10.8	9.9	10.1	10.6	12.1
2022	11.1	12.9	10.1	12.0	11.7	11.1	12.6	12.5	9.1	11.8	6.9	11.5
2023	12.2	11.4	9.2	12.1	12.4	11.4	11.4	12.7	8.4	9.2	8.8	9.8
2024	11.1	11.3	10.8	11.0	10.2	11.0	10.4	15.3	11.0	10.7	9.1	12.6
2025	11.5	9.9	11.6	10.8	10.5	10.4	13.2	12.5	12.3	9.6	10.6	10.7
2026	9.5	10.4	15.8	12.5	9.9	12.1	9.6	10.3	12.7	11.3	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2001	M	M	M	M	M	M	75.20	M	M	M	64.40	M
2002	M	60.80	M	M	M	M	M	M	M	M	M	M
2003	66.72	65.24	67.07	66.68	71.95	74.66	78.16	80.43	80.18	74.15	69.98	68.35
2004	M	M	M	M	69.96	76.82	79.32	79.96	77.30	74.15	69.50	63.99
2005	63.41	61.06	65.85	66.38	69.45	73.64	76.01	76.88	76.76	73.69	67.70	65.68
2006	62.72	63.63	66.26	68.84	71.54	72.92	76.01	77.75	80.18	75.72	72.80	67.83
2007	66.26	68.00	67.36	68.78	70.38	74.12	78.05	75.95	74.18	74.85	72.32	67.88
2008	67.54	67.07	65.50	68.30	71.14	75.32	77.93	78.74	78.20	74.15	68.30	65.85
2009	M	60.80	M	66.20	M	M	M	M	M	M	68.00	M
2010	68.00	M	M	M	68.00	M	M	78.80	M	M	71.60	67.94
2011	62.73	M	M	62.60	65.30	69.35	70.70	78.80	79.88	78.80	71.90	68.87
2012	66.03	63.47	67.88	67.94	73.57	78.62	80.19	83.04	81.80	77.87	69.68	69.28
2013	68.29	65.94	69.51	70.22	67.83	72.20	76.30	79.55	76.64	74.74	70.10	68.58
2014	65.50	64.91	65.27	68.12	70.67	73.76	75.61	79.03	77.84	76.59	70.64	64.23
2015	64.66	55.40	61.70	66.09	71.60	72.80	80.31	79.50	77.90	74.85	70.46	70.67
2016	68.17	65.27	64.92	66.56	68.99	74.60	78.92	82.28	78.86	75.78	70.04	67.71
2017	65.74	66.20	66.49	69.62	72.12	75.68	77.75	79.26	77.30	77.46	72.02	67.65
2018	65.27	63.05	67.30	67.58	67.77	72.86	76.77	78.86	78.68	74.62	69.26	68.52
2019	64.92	66.97	67.54	67.64	72.18	74.54	76.65	79.44	77.54	75.61	72.08	69.16
2020	67.07	68.68	66.61	69.08	73.28	73.64	78.39	80.43	78.44	74.68	70.28	66.72
2021	64.57	66.20	66.66	69.44	72.35	74.06	77.70	80.08	78.56	76.25	70.58	68.64
2022	67.07	66.78	65.62	66.98	72.24	74.18	77.46	78.34	78.98	76.42	72.80	70.73
2023	65.45	65.30	69.86	71.06	72.88	76.58	78.22	83.33	79.22	80.31	72.98	69.97
2024	70.50	69.74	68.00	70.88	71.72	74.12	78.63	81.70	77.72	77.81	73.70	68.46
2025	68.64	67.23	66.95	67.82	70.55	75.20	78.10	80.02	77.90	76.48	72.08	67.36
2026	66.08	67.36	64.28	67.64	69.80	75.92	78.39	81.01	81.80	76.10	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2001	M	M	M	M	M	M	69.80	M	M	M	62.60	M
2002	M	59.00	M	M	M	M	M	M	M	M	M	M
2003	58.83	57.91	58.77	58.94	62.54	66.20	70.09	71.14	70.94	65.21	61.94	60.16
2004	M	M	M	M	61.21	67.04	70.67	70.90	68.84	66.08	61.58	57.72
2005	56.04	54.69	56.15	58.16	60.57	63.80	67.48	68.17	68.30	64.98	59.90	58.48
2006	55.63	54.69	57.20	59.66	62.19	64.28	66.49	68.93	69.32	66.43	64.16	60.10
2007	59.00	58.04	59.06	59.00	61.44	64.46	68.41	68.35	66.56	65.97	64.28	60.45
2008	59.06	57.63	58.07	59.06	61.67	65.18	68.81	70.67	68.66	66.20	61.34	58.07
2009	M	60.80	M	64.40	M	M	M	M	M	M	66.20	M
2010	66.20	M	M	M	66.20	M	M	77.90	M	M	68.00	58.83
2011	53.73	M	M	62.60	62.60	67.10	68.00	69.44	70.22	68.64	63.38	62.14
2012	58.88	56.46	57.72	58.10	62.25	69.14	70.85	72.30	71.48	68.35	61.76	59.64
2013	58.77	58.29	59.12	59.72	59.70	62.30	66.61	68.99	66.98	64.86	62.72	59.75
2014	56.91	55.46	56.04	58.10	60.28	63.20	66.32	69.68	67.46	66.95	60.74	58.25
2015	56.69	55.40	61.70	59.11	62.60	64.16	70.26	70.55	69.62	66.78	63.38	62.95
2016	60.74	58.57	57.49	58.88	60.34	65.96	67.71	70.96	70.28	67.01	61.70	61.50
2017	59.23	57.84	58.19	60.68	63.18	67.16	68.64	69.68	69.50	68.87	64.94	61.32
2018	58.65	56.43	58.88	58.58	60.28	64.64	67.71	70.21	70.10	66.14	60.80	61.21
2019	58.59	58.94	59.35	58.64	62.83	64.88	68.29	70.96	68.90	66.95	64.22	61.50
2020	59.35	60.30	59.00	60.14	63.30	65.96	68.23	71.14	69.50	66.90	61.88	59.87
2021	57.43	56.81	59.00	60.14	62.83	64.76	67.77	70.44	70.16	67.54	62.96	61.32
2022	60.86	60.48	57.37	58.64	62.60	64.70	67.59	68.81	69.86	67.77	64.40	62.08
2023	59.00	56.94	60.97	62.00	64.11	67.82	69.39	72.88	69.92	70.15	65.18	62.95
2024	62.77	62.48	58.94	61.64	63.06	65.54	69.10	72.35	69.80	68.64	65.36	62.19
2025	60.80	58.68	57.37	59.06	61.50	66.56	69.05	70.15	69.26	68.64	63.86	59.75
2026	58.19	58.68	57.14	58.88	60.39	66.56	69.74	71.89	72.02	68.65	M	M

Average Daily Temperature (high+low)/2 [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2001	M	M	M	M	M	M	72.50	M	M	M	63.50	M
2002	M	59.90	M	M	M	M	M	M	M	M	M	M
2003	62.77	61.57	62.92	62.81	67.25	70.43	74.13	75.78	75.56	69.68	65.96	64.25
2004	M	M	M	M	65.59	71.93	75.00	75.43	73.07	70.12	65.54	60.86
2005	59.73	57.87	61.00	62.27	65.01	68.72	71.75	72.53	72.53	69.34	63.80	62.08
2006	59.17	59.16	61.73	64.25	66.87	68.60	71.25	73.34	74.75	71.08	68.48	63.96
2007	62.63	63.02	63.21	63.89	65.91	69.29	73.23	72.15	70.37	70.41	68.30	64.17
2008	63.30	62.35	61.79	63.68	66.40	70.25	73.37	74.71	73.43	70.18	64.82	61.96
2009	M	60.80	M	65.30	M	M	M	M	M	M	67.10	M
2010	67.10	M	M	M	67.10	M	M	78.35	M	M	69.80	63.38
2011	58.23	M	M	62.60	63.95	68.22	69.35	74.12	75.05	73.72	67.64	65.50
2012	62.45	59.96	62.80	63.02	67.91	73.88	75.52	77.67	76.64	73.11	65.72	64.46
2013	63.53	62.12	64.31	64.97	63.76	67.25	71.45	74.27	71.81	69.80	66.41	64.17
2014	61.21	60.19	60.65	63.11	65.47	68.48	70.96	74.36	72.65	71.77	65.69	61.24
2015	60.67	55.40	61.70	62.60	67.10	68.48	75.29	75.03	73.76	70.82	66.92	66.81
2016	64.46	61.92	61.21	62.72	64.66	70.28	73.31	76.62	74.57	71.40	65.87	64.60
2017	62.48	62.02	62.34	65.15	67.65	71.42	73.20	74.47	73.40	73.17	68.48	64.49
2018	61.96	59.74	63.09	63.08	64.02	68.75	72.24	74.53	74.39	70.38	65.03	64.86
2019	61.76	62.95	63.44	63.14	67.51	69.71	72.47	75.20	73.22	71.28	68.15	65.33
2020	63.21	64.49	62.80	64.61	68.29	69.80	73.31	75.78	73.97	70.79	66.08	63.30
2021	61.00	61.51	62.83	64.79	67.59	69.41	72.73	75.26	74.36	71.89	66.77	64.98
2022	63.96	63.63	61.50	62.81	67.42	69.44	72.53	73.57	74.42	72.09	68.60	66.40
2023	62.22	61.12	65.42	66.53	68.49	72.20	73.81	78.10	74.57	75.23	69.08	66.46
2024	66.64	66.11	63.47	66.26	67.39	69.83	73.86	77.03	73.76	73.23	69.53	65.33
2025	64.72	62.95	62.16	63.44	66.03	70.88	73.57	75.08	73.58	72.56	67.97	63.56
2026	62.14	63.02	60.71	63.26	65.10	71.24	74.07	76.45	76.91	72.38	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
2001	M	M	M	M	M	M	62.8%	M	M	M	M	M
2002	M	60.2%	M	M	M	M	M	M	M	M	M	M
2003	68.1%	68.7%	70.6%	72.3%	61.0%	71.2%	67.0%	69.8%	71.2%	69.5%	70.1%	70.3%
2004	M	M	M	M	67.5%	72.1%	61.3%	69.6%	63.6%	69.1%	68.9%	68.3%
2005	70.7%	70.1%	74.2%	66.1%	65.5%	67.2%	64.9%	65.6%	65.3%	74.1%	67.8%	74.1%
2006	72.7%	75.3%	71.7%	68.1%	66.8%	69.8%	69.3%	68.0%	62.6%	73.9%	72.7%	67.2%
2007	71.1%	70.9%	64.8%	68.9%	66.2%	67.7%	66.1%	67.6%	69.9%	68.6%	70.4%	69.5%
2008	74.4%	71.3%	68.1%	66.7%	69.1%	69.2%	67.2%	65.6%	71.9%	66.6%	67.1%	72.4%
2009	70.9%	67.1%	71.3%	63.9%	64.3%	74.2%	64.1%	66.7%	68.0%	72.6%	70.4%	72.2%
2010	69.5%	75.8%	70.0%	67.3%	65.6%	67.6%	67.9%	65.4%	69.5%	76.4%	75.9%	73.9%
2011	72.8%	67.2%	69.7%	69.2%	71.9%	64.9%	66.6%	67.4%	66.5%	64.1%	64.1%	64.0%
2012	68.2%	61.4%	62.7%	61.1%	67.5%	68.1%	59.0%	66.3%	68.7%	69.9%	71.3%	70.0%
2013	68.8%	64.9%	74.8%	68.2%	67.4%	68.1%	69.5%	62.7%	68.0%	69.2%	69.2%	71.7%
2014	70.7%	66.9%	65.9%	70.6%	65.4%	67.3%	66.1%	65.5%	70.9%	68.6%	68.3%	69.0%
2015	66.8%	M	M	69.1%	66.9%	69.1%	67.0%	68.3%	73.0%	71.7%	69.5%	72.0%
2016	75.1%	67.5%	66.0%	71.4%	66.2%	69.6%	65.4%	61.3%	65.8%	71.1%	68.6%	72.5%
2017	70.2%	69.4%	67.2%	70.6%	69.4%	66.2%	66.3%	67.8%	66.8%	66.6%	71.0%	66.5%
2018	68.0%	71.2%	70.5%	66.5%	66.4%	70.3%	66.8%	66.1%	66.1%	71.9%	71.4%	73.6%
2019	69.1%	65.2%	67.7%	66.5%	68.1%	64.8%	67.7%	68.0%	65.5%	69.7%	69.4%	69.1%
2020	67.2%	69.4%	66.8%	69.1%	63.8%	72.5%	66.6%	66.2%	70.9%	70.3%	73.0%	72.4%
2021	73.1%	69.7%	67.3%	70.7%	61.2%	63.4%	68.8%	65.3%	68.6%	68.1%	67.8%	72.4%
2022	69.4%	69.8%	67.8%	67.5%	67.9%	66.4%	66.5%	66.2%	69.1%	70.5%	72.0%	72.7%
2023	67.8%	69.3%	72.3%	66.9%	64.4%	70.4%	68.1%	66.3%	70.9%	66.1%	70.9%	69.8%
2024	74.7%	69.6%	66.8%	64.4%	68.7%	68.5%	72.3%	64.4%	67.9%	69.3%	74.0%	70.2%
2025	69.6%	68.1%	67.2%	69.8%	71.3%	68.9%	69.3%	68.4%	69.5%	75.1%	67.9%	66.4%
2026	68.6%	67.4%	69.1%	64.2%	71.6%	69.7%	71.6%	70.4%	67.8%	69.2%	M	M