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
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	0.00	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2011	0.00	0.00	0.00	0.00	0.00	0.00	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	M	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
2005	M	M	M	M	M	M	M	M	M	6.6	6.2	6.8
2006	5.8	M	M	M	M	M	M	M	M	7.1	7.1	6.2
2007	6.7	7.2	7.7	6.7	8.6	7.8	6.2	7.1	7.6	8.2	6.8	5.8
2008	6.7	6.8	6.9	7.3	6.7	7.3	6.4	7.3	6.9	7.2	7.6	6.0
2009	6.1	5.2	7.3	6.6	8.0	6.9	7.1	6.5	7.6	6.2	6.5	5.8
2010	5.7	4.6	6.6	7.5	7.8	6.2	6.1	7.0	8.8	7.8	6.9	5.4
2011	4.9	7.4	5.5	6.3	7.5	7.1	7.0	6.9	7.9	7.4	7.0	7.1
2012	6.9	6.1	7.6	6.4	8.1	7.6	5.9	6.4	7.0	7.5	6.2	5.1
2013	8.5	5.7	5.9	8.0	7.4	7.3	7.4	6.6	8.2	7.3	7.4	5.8
2014	7.9	7.3	7.2	7.7	7.1	8.1	7.7	6.0	7.4	8.3	7.7	7.0
2015	7.6	7.5	7.7	7.8	7.1	7.1	7.3	7.3	7.7	6.9	7.7	7.5
2016	6.2	6.3	7.0	6.6	7.6	7.9	7.2	7.1	7.4	6.9	8.1	6.6
2017	7.0	6.4	8.1	8.0	7.0	7.2	7.1	5.9	8.1	9.5	8.1	6.4
2018	5.8	8.1	7.2	7.2	7.6	7.4	7.8	7.3	7.5	6.4	6.2	6.5
2019	6.7	6.3	7.6	7.5	6.8	6.9	6.7	7.7	6.6	7.9	6.4	6.4
2020	6.0	7.0	7.6	7.2	7.9	7.7	7.1	7.1	7.7	6.9	7.3	7.3
2021	5.7	6.7	7.9	8.0	7.9	7.9	M	7.2	6.9	6.6	7.8	6.4
2022	7.1	6.6	6.1	8.8	8.5	7.4	6.5	6.9	7.0	8.2	7.6	7.4
2023	6.1	6.5	5.8	8.8	7.1	6.8	6.0	6.0	6.1	6.3	8.2	7.1
2024	6.7	6.0	7.3	7.7	8.0	7.4	6.6	7.0	6.7	7.4	7.7	6.8
2025	7.2	6.4	6.0	6.9	8.4	6.7	6.4	6.7	6.6	8.0	7.3	7.4
2026	6.6	7.1	6.1	8.0	6.7	6.9	6.5	6.5	4.9	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	M	M	53.60	47.04	24.74	11.68
2006	14.06	8.15	16.88	30.46	48.20	67.10	65.17	63.95	54.50	34.70	27.20	18.41
2007	10.18	3.14	27.94	40.70	60.63	65.42	74.15	67.42	56.36	45.53	24.14	6.51
2008	9.41	9.10	21.95	39.32	49.30	63.50	68.99	73.63	59.00	45.06	27.72	-0.34
2009	0.74	11.39	25.19	41.20	50.42	66.13	63.97	65.42	65.93	40.48	38.07	7.55
2010	9.75	18.04	37.84	51.33	60.87	67.57	74.45	71.87	53.57	47.61	30.47	13.97
2011	0.85	11.91	23.79	45.62	58.79	71.77	75.61	71.32	63.02	50.00	30.74	14.99
2012	8.43	20.21	35.19	44.72	56.10	71.00	76.07	67.78	54.07	42.20	22.02	11.77
2013	0.75	14.74	22.54	35.90	54.53	67.94	73.11	69.51	63.08	44.43	23.90	-2.61
2014	-0.52	4.94	16.61	35.60	55.34	69.56	71.19	69.97	58.66	43.44	17.84	14.52
2015	3.37	-1.04	26.14	39.86	55.40	70.98	74.62	69.28	64.94	44.25	30.80	20.74
2016	9.59	10.28	28.86	36.20	59.64	63.18	74.21	70.90	60.80	43.50	37.53	8.95
2017	13.24	18.50	26.25	40.52	55.05	66.32	74.79	69.45	60.20	48.32	20.96	4.01
2018	2.86	-5.58	25.75	36.44	58.19	71.96	75.20	69.34	54.38	35.66	20.54	14.35
2019	1.81	7.44	26.19	39.08	52.73	66.74	76.30	69.39	58.94	45.01	21.80	11.21
2020	11.56	13.69	27.35	37.88	54.47	67.88	78.86	70.03	56.24	36.70	27.36	10.29
2021	15.86	9.24	31.36	43.22	57.08	68.00	M	67.36	62.06	53.66	30.32	8.31
2022	-0.22	5.45	24.97	37.82	55.91	68.75	72.47	70.96	62.06	48.49	28.58	8.60
2023	11.79	11.94	22.83	34.38	63.47	74.24	71.02	70.44	65.66	45.94	26.18	26.02
2024	11.33	18.66	24.05	44.54	57.03	68.66	75.43	72.82	70.04	47.74	35.96	18.01
2025	5.35	10.21	23.64	41.36	59.23	67.64	74.15	72.06	64.10	52.79	28.94	5.58
2026	4.77	14.26	19.05	36.44	52.90	71.48	76.83	69.86	71.60	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	M	M	50.00	33.92	10.46	-3.83
2006	-5.56	7.25	16.88	30.20	48.20	67.10	64.91	63.95	53.60	26.60	12.08	3.26
2007	-9.26	-19.81	-0.17	17.06	37.57	47.78	55.17	50.17	42.02	33.92	12.80	-10.74
2008	-8.53	-16.35	-4.23	16.52	30.78	46.40	52.21	52.09	39.68	32.81	17.35	-17.12
2009	-16.81	-14.54	-5.06	21.17	29.45	48.17	49.90	48.06	47.60	28.55	25.93	-6.71
2010	-6.10	-8.75	14.77	29.33	41.68	46.30	55.77	52.55	39.70	32.74	16.70	-0.03
2011	-16.50	-11.32	-8.94	18.42	35.64	46.45	55.96	52.00	41.84	35.19	19.58	-6.38
2012	-10.27	-3.26	12.49	22.34	34.96	49.28	54.35	48.50	37.68	32.75	8.76	-6.91
2013	-17.25	-10.46	-2.84	11.72	31.83	47.12	53.95	51.80	43.82	31.25	9.86	-20.32
2014	-16.02	-15.89	-10.15	11.94	35.31	48.32	52.21	49.94	43.40	31.88	3.38	0.70
2015	-16.54	-22.58	-0.46	17.60	33.54	48.41	54.99	52.67	46.46	29.74	19.88	8.43
2016	-7.60	-13.81	3.37	13.46	36.24	45.25	54.76	53.37	45.80	33.57	26.53	-5.51
2017	-0.33	-1.38	2.04	20.12	32.99	47.00	52.73	48.08	44.54	34.38	6.20	-13.93
2018	-16.00	-27.40	-4.21	7.52	34.61	49.88	55.63	49.59	39.50	25.79	8.42	-1.56
2019	-19.39	-14.54	0.94	16.04	32.35	46.04	54.47	51.39	41.96	32.35	10.10	-4.93
2020	-6.32	-9.40	-0.34	14.36	31.36	49.10	57.66	52.96	41.42	26.19	14.97	-7.18
2021	1.34	-15.96	5.87	22.64	35.66	48.56	M	51.16	45.44	40.77	18.38	-12.36
2022	-21.76	-22.39	-1.50	17.72	34.57	48.05	52.38	51.80	41.48	32.75	17.60	-4.23
2023	-5.34	-14.80	-5.34	13.93	36.41	51.44	50.81	49.13	43.16	32.52	13.16	12.14
2024	-4.12	-4.19	-0.23	19.70	36.53	48.14	54.18	52.55	50.18	33.39	27.62	4.94
2025	-11.61	-12.10	-3.19	17.66	35.02	46.64	53.89	52.21	45.92	38.74	18.98	-7.72
2026	-13.41	-2.01	-7.19	18.26	31.30	50.06	55.92	50.41	51.50	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	M	M	51.80	40.48	17.60	3.93
2006	4.25	7.70	16.88	30.33	48.20	67.10	65.04	63.95	54.05	30.65	19.64	10.84
2007	0.46	-8.34	13.88	28.88	49.10	56.60	64.66	58.80	49.19	39.72	18.47	-2.11
2008	0.44	-3.63	8.86	27.92	40.04	54.95	60.60	62.86	49.34	38.94	22.53	-8.73
2009	-8.03	-1.57	10.06	31.18	39.94	57.15	56.94	56.74	56.77	34.52	32.00	0.42
2010	1.83	4.64	26.31	40.33	51.27	56.93	65.11	62.21	46.63	40.18	23.58	6.97
2011	-7.83	0.29	7.43	32.02	47.21	59.11	65.79	61.66	52.43	42.60	25.16	4.30
2012	-0.92	8.48	23.84	33.53	45.53	60.14	65.21	58.14	45.88	37.47	15.39	2.43
2013	-8.25	2.14	9.85	23.81	43.18	57.53	63.53	60.65	53.45	37.84	16.88	-11.46
2014	-8.27	-5.48	3.23	23.77	45.33	58.94	61.70	59.96	51.03	37.66	10.61	7.61
2015	-6.58	-11.81	12.84	28.73	44.47	59.69	64.81	60.97	55.70	36.99	25.34	14.58
2016	0.99	-1.77	16.12	24.83	47.94	54.21	64.49	62.14	53.30	38.53	32.03	1.72
2017	6.45	8.56	14.15	30.32	44.02	56.66	63.76	58.77	52.37	41.35	13.58	-4.96
2018	-6.57	-16.49	10.77	21.98	46.40	60.92	65.42	59.46	46.94	30.72	14.48	6.39
2019	-8.79	-3.55	13.56	27.56	42.54	56.39	65.39	60.39	50.45	38.68	15.95	3.14
2020	2.62	2.14	13.51	26.12	42.92	58.49	68.26	61.50	48.83	31.45	21.17	1.56
2021	8.60	-3.36	18.62	32.93	46.37	58.28	M	59.26	53.75	47.21	24.35	-2.03
2022	-10.99	-8.47	11.74	27.77	45.24	58.40	62.43	61.38	51.77	40.62	23.09	2.18
2023	3.23	-1.43	8.75	24.15	49.94	62.84	60.92	59.78	54.41	39.23	19.67	19.08
2024	3.61	7.23	11.91	32.12	46.78	58.40	64.81	62.69	60.11	40.56	31.79	11.47
2025	-3.13	-0.95	10.23	29.51	47.13	57.14	64.02	62.14	55.01	45.76	23.96	-1.07
2026	-4.32	6.13	5.93	27.35	42.10	60.77	66.37	60.13	61.55	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
2005	M	M	M	M	M	M	M	M	M	83.5%	83.8%	78.6%
2006	76.3%	M	M	M	M	M	M	M	M	79.8%	84.2%	82.9%
2007	74.4%	59.2%	63.2%	62.7%	61.6%	75.8%	72.5%	79.1%	84.9%	85.9%	82.0%	74.3%
2008	79.7%	67.5%	63.6%	68.9%	70.0%	77.3%	77.5%	72.6%	80.7%	83.2%	86.3%	73.5%
2009	69.4%	71.3%	64.2%	64.3%	67.4%	75.5%	81.6%	83.6%	79.6%	84.0%	81.1%	76.0%
2010	74.6%	66.2%	69.4%	61.4%	65.2%	67.9%	76.4%	78.4%	80.7%	75.6%	79.1%	81.2%
2011	71.7%	65.5%	59.2%	58.3%	63.8%	57.1%	71.8%	75.5%	76.7%	82.3%	83.2%	78.4%
2012	75.5%	71.8%	72.3%	62.8%	71.2%	70.2%	70.4%	75.5%	76.4%	91.3%	84.1%	68.1%
2013	75.4%	73.5%	68.6%	66.0%	64.3%	62.0%	67.0%	77.6%	75.6%	79.2%	83.1%	76.8%
2014	75.0%	72.4%	65.7%	65.0%	69.9%	63.9%	67.0%	77.1%	82.0%	88.3%	84.7%	88.7%
2015	78.9%	69.9%	67.9%	70.9%	68.7%	68.1%	72.8%	82.5%	77.8%	78.6%	89.0%	85.5%
2016	80.9%	71.7%	67.1%	65.1%	63.3%	69.7%	67.9%	75.0%	82.9%	87.5%	83.9%	82.9%
2017	82.8%	76.8%	63.6%	65.5%	64.9%	69.2%	60.6%	70.2%	78.1%	72.9%	80.5%	77.8%
2018	77.0%	71.0%	55.3%	54.8%	65.9%	62.1%	72.1%	73.2%	80.3%	90.0%	88.1%	85.2%
2019	74.2%	73.8%	71.1%	64.4%	67.1%	67.5%	69.7%	76.2%	82.3%	84.5%	86.1%	84.0%
2020	83.8%	72.8%	69.4%	65.5%	62.5%	71.2%	69.6%	74.8%	82.9%	80.7%	90.6%	82.1%
2021	86.9%	73.1%	62.6%	66.1%	66.6%	71.6%	M	82.5%	81.4%	87.2%	84.5%	81.6%
2022	75.4%	70.8%	67.6%	69.6%	61.8%	70.9%	74.0%	76.6%	78.3%	80.9%	85.8%	86.2%
2023	86.6%	76.0%	71.0%	69.2%	61.4%	62.9%	73.3%	77.8%	75.9%	87.7%	84.0%	88.7%
2024	83.6%	82.6%	74.5%	63.7%	73.8%	69.0%	71.4%	70.4%	77.3%	77.9%	90.3%	89.5%
2025	79.9%	75.9%	70.1%	68.9%	61.9%	67.0%	69.9%	74.2%	80.5%	81.8%	86.8%	82.1%
2026	80.7%	80.8%	69.6%	69.8%	69.9%	66.1%	67.1%	75.0%	79.8%	M	M	M