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
2003	M	M	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00
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	0.00	0.00	0.00	0.00	0.73	2.16	1.86	4.75	1.74	0.00	0.00	0.00
2008	0.00	0.00	0.00	0.00	0.33	1.15	3.71	2.40	2.12	0.00	0.00	0.00
2009	0.00	0.00	0.00	0.00	1.05	2.18	3.62	1.33	2.64	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	1.01	0.59	4.78	8.27	2.27	0.00	1.51	0.00
2011	0.00	0.00	0.00	0.04	0.01	0.14	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	1.94	2.02	1.37	1.58	0.10
2013	0.08	0.25	0.13	0.35	0.42	0.43	1.58	21.51	1.75	2.17	1.71	0.26
2014	1.02	0.64	0.62	0.85	1.04	2.43	0.97	0.67	M	M	0.43	0.63
2015	0.81	0.32	0.78	0.90	0.03	M	3.30	1.63	3.89	0.97	0.48	0.65
2016	0.84	0.28	0.67	0.20	1.54	1.30	3.61	2.96	2.77	5.68	0.64	0.75
2017	0.87	0.82	2.68	1.28	1.69	1.77	2.22	2.84	3.14	4.11	0.58	0.34
2018	0.00	0.02	0.17	0.21	0.17	3.22	13.64	1.39	2.20	0.73	0.61	0.29
2019	0.85	0.47	0.70	0.00	0.79	1.26	3.43	4.12	0.05	2.38	0.94	0.56
2020	0.60	0.34	0.48	1.87	1.98	5.43	3.32	M	0.09	M	0.15	0.03
2021	0.08	0.73	0.46	0.77	1.33	2.47	0.49	1.12	0.71	1.60	1.10	1.52
2022	0.50	0.44	1.40	0.49	2.98	2.61	3.14	2.61	1.59	3.42	1.93	0.31
2023	0.58	1.38	0.68	0.18	1.58	2.38	3.10	3.87	1.67	0.60	1.31	1.66
2024	2.56	31.73	0.75	0.79	2.79	2.38	1.44	0.46	M	0.59	1.10	0.59
2025	0.42	0.50	0.75	0.61	1.02	1.04	1.13	2.11	4.27	2.76	0.53	0.60
2026	0.90	0.91	0.55	2.41	0.75	5.25	3.84	1.77	2.80	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	8.8	7.2	7.7	6.2	6.0
2005	6.8	6.0	6.7	8.6	8.4	7.6	7.2	6.8	7.0	6.1	6.7	6.2
2006	4.9	5.8	5.0	6.9	8.1	5.6	6.0	6.7	7.4	7.2	7.2	6.5
2007	5.8	7.4	7.3	6.8	8.3	7.7	5.8	6.8	7.0	6.5	6.6	5.2
2008	7.3	6.8	6.6	7.3	7.6	7.5	6.5	7.7	6.8	7.1	6.6	5.8
2009	7.2	6.1	7.3	6.8	8.6	7.2	6.7	6.2	6.9	7.0	5.6	5.6
2010	6.8	4.8	6.1	8.7	8.5	6.6	5.6	7.6	6.7	8.2	6.4	5.3
2011	4.0	8.2	5.7	6.4	8.6	8.4	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	5.6	7.3	7.2	6.1	5.8
2013	5.7	5.3	6.2	7.1	7.0	6.5	6.3	6.2	7.9	6.1	5.7	5.9
2014	7.0	7.2	6.1	6.8	7.4	7.6	6.3	6.8	M	M	5.8	5.6
2015	6.7	6.9	6.7	7.0	4.0	8.0	5.9	6.1	6.0	6.5	5.8	5.6
2016	5.4	5.6	6.2	6.6	8.3	7.7	6.5	5.5	6.1	7.9	6.1	5.5
2017	5.2	5.9	8.0	6.5	7.8	8.1	6.6	5.3	6.6	8.0	7.5	6.3
2018	7.9	4.9	6.8	6.7	7.4	7.7	6.5	6.1	6.1	6.8	5.9	5.0
2019	5.8	5.4	7.0	6.4	8.0	6.2	5.8	7.9	6.3	7.3	6.1	4.0
2020	5.3	6.1	7.1	7.0	8.3	7.6	5.9	5.4	M	M	5.5	3.9
2021	3.1	6.1	7.4	7.5	8.1	7.6	6.2	5.8	6.9	6.1	6.6	4.9
2022	6.0	5.6	5.8	7.6	8.5	8.0	5.1	5.8	6.6	8.1	6.4	6.2
2023	5.0	6.0	5.9	6.7	6.4	6.2	6.3	5.2	5.4	4.8	7.6	6.0
2024	5.5	5.8	7.2	6.4	8.1	6.2	6.0	5.9	M	6.7	6.3	5.9
2025	6.9	5.9	5.6	7.0	7.6	6.5	5.5	5.8	5.2	6.2	7.1	5.6
2026	6.7	6.6	5.4	7.6	7.0	7.6	5.9	5.9	6.9	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2003	M	M	M	M	M	67.82	71.83	71.50	53.59	38.25	18.15	9.04
2004	M	M	M	M	M	M	M	53.22	56.91	39.10	21.70	-7.04
2005	-3.82	8.71	18.12	44.85	56.39	64.54	72.02	65.34	54.79	43.06	23.18	7.51
2006	9.44	7.56	26.58	50.37	53.02	71.64	64.98	69.87	M	34.82	16.00	13.85
2007	2.59	2.61	20.09	39.63	56.91	64.28	74.55	64.71	49.48	43.03	17.22	-0.22
2008	0.60	-0.51	14.07	37.44	49.17	67.91	70.10	77.09	53.37	43.06	21.08	-9.24
2009	-0.49	6.19	17.45	38.17	42.88	62.61	67.99	65.25	63.71	35.89	28.26	-1.07
2010	7.10	17.00	34.67	48.76	52.48	69.50	75.38	66.79	53.00	45.84	23.86	6.32
2011	-3.76	4.98	18.46	40.01	52.31	60.60	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	70.52	58.98	37.76	14.79	-0.96
2013	-4.65	7.62	17.64	31.05	55.73	73.00	73.54	68.72	63.27	37.18	14.40	-11.76
2014	-5.39	-0.57	12.57	31.98	53.17	66.40	69.61	71.86	M	M	1.82	8.62
2015	-1.13	-3.94	20.88	37.11	46.85	68.47	73.49	65.96	56.92	42.05	24.63	14.43
2016	5.71	4.75	24.64	35.65	56.45	67.23	71.63	67.76	58.86	35.63	32.74	1.03
2017	8.55	8.21	19.67	32.69	52.07	63.91	74.12	72.99	58.30	43.22	14.89	21.25
2018	9.00	15.56	22.55	33.39	56.57	67.32	72.04	65.71	47.58	33.91	12.38	8.25
2019	-4.37	-0.41	25.70	38.76	49.91	65.53	71.74	64.02	51.82	39.69	16.34	6.37
2020	0.11	8.13	18.85	32.43	49.38	61.54	73.17	74.66	42.76	28.17	15.30	20.73
2021	4.93	0.83	25.89	38.19	47.15	65.90	75.83	68.02	60.69	47.38	24.50	-3.52
2022	-6.33	-0.92	21.18	36.63	51.16	65.49	70.24	69.77	61.64	44.08	18.28	1.61
2023	6.20	0.77	15.57	37.22	61.59	72.92	68.85	68.64	65.13	43.67	23.58	21.63
2024	5.17	10.03	18.25	44.80	52.74	63.72	74.70	74.46	M	42.21	28.10	10.45
2025	1.97	2.64	15.96	37.45	59.79	62.88	72.42	70.03	63.89	47.33	26.35	-4.67
2026	-0.06	7.89	10.98	29.89	53.57	67.54	74.56	69.08	59.10	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2003	M	M	M	M	M	51.73	53.41	54.00	40.59	30.25	5.35	-3.84
2004	M	M	M	M	M	M	M	48.64	42.71	25.85	6.59	-24.37
2005	-20.91	-14.59	-5.06	26.00	33.50	43.83	51.04	49.46	40.05	28.76	11.41	-7.97
2006	-5.94	-14.80	0.84	25.76	34.24	47.36	50.00	48.49	M	29.00	-0.89	-2.16
2007	-15.46	-17.46	-7.98	12.26	33.74	42.69	53.15	47.73	36.11	29.62	1.38	-17.51
2008	-14.06	-24.08	-12.51	14.39	30.02	42.64	52.05	51.06	37.05	31.71	10.81	-23.31
2009	-15.36	-16.07	-10.38	18.68	22.67	42.43	47.81	46.40	44.67	26.77	15.73	-14.88
2010	-8.26	-11.21	12.75	26.83	30.67	41.98	53.45	49.65	37.90	30.57	10.65	-7.22
2011	-20.00	-13.26	-12.60	12.94	29.74	38.28	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	52.14	41.16	26.02	0.15	-14.99
2013	-22.82	-16.11	-5.46	6.58	31.99	45.60	51.37	49.98	43.52	28.41	-2.66	-26.89
2014	-19.78	-18.85	-16.36	4.52	32.53	42.37	51.51	54.99	M	M	-13.72	-6.09
2015	-19.39	-23.48	-3.64	13.11	27.43	35.71	52.20	49.68	40.74	28.28	13.88	4.02
2016	-9.85	-19.66	-2.65	10.86	33.79	46.05	52.14	49.00	42.99	28.20	22.04	-13.64
2017	-6.39	-10.84	-6.29	9.30	32.33	43.65	51.39	47.87	40.95	31.77	0.36	8.24
2018	-21.14	-21.20	-2.83	6.59	30.69	47.13	52.25	47.00	34.14	22.40	-3.02	-3.88
2019	-22.40	-21.05	0.65	16.03	29.45	44.21	51.68	49.58	31.57	28.73	5.69	-7.90
2020	-11.52	-11.25	-4.35	7.66	28.33	43.92	55.39	55.00	41.96	25.93	-2.30	10.79
2021	-15.87	-22.75	-1.25	17.98	29.31	44.60	52.85	47.42	43.18	33.09	10.79	-21.52
2022	-24.80	-28.70	-6.45	15.83	31.39	45.04	51.12	48.33	42.05	29.30	1.22	-11.84
2023	-7.56	-23.59	-13.26	15.48	36.03	50.57	49.23	50.46	46.54	29.17	11.49	3.01
2024	-11.11	-11.67	-8.16	22.37	34.14	42.69	54.37	53.19	M	28.50	18.34	-3.05
2025	-15.43	-15.85	-10.78	14.72	33.74	42.88	50.21	49.90	41.92	34.93	15.31	-18.30
2026	-16.14	-14.13	-17.95	9.90	33.20	47.44	52.31	51.55	44.34	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2003	M	M	M	M	M	59.77	62.62	62.75	47.09	34.25	11.75	2.60
2004	M	M	M	M	M	M	M	50.93	49.81	32.48	14.15	-15.70
2005	-12.37	-2.94	6.53	35.42	44.95	54.18	61.53	57.40	47.42	35.91	17.29	-0.23
2006	1.75	-3.62	13.71	38.07	43.63	59.50	57.49	59.18	M	31.91	7.56	5.85
2007	-6.44	-7.43	6.05	25.95	45.32	53.49	63.85	56.22	42.79	36.32	9.30	-8.87
2008	-6.73	-12.30	0.78	25.92	39.59	55.27	61.07	64.08	45.21	37.39	15.95	-16.28
2009	-7.93	-4.94	3.53	28.42	32.78	52.52	57.90	55.82	54.19	31.33	22.00	-7.98
2010	-0.58	2.89	23.71	37.80	41.58	55.74	64.42	58.22	45.45	38.21	17.26	-0.45
2011	-11.88	-4.14	2.93	26.47	41.02	49.44	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	61.33	50.07	31.89	7.47	-7.97
2013	-13.73	-4.25	6.09	18.81	43.86	59.30	62.45	59.35	53.39	32.80	5.87	-19.32
2014	-12.59	-9.71	-1.90	18.25	42.85	54.38	60.56	63.43	M	M	-5.95	1.26
2015	-10.26	-13.71	8.62	25.11	37.14	52.09	62.85	57.82	48.83	35.16	19.25	9.22
2016	-2.07	-7.46	11.00	23.25	45.12	56.64	61.89	58.38	50.92	31.92	27.39	-6.30
2017	1.08	-1.32	6.69	21.00	42.20	53.78	62.75	60.43	49.63	37.50	7.62	14.74
2018	-6.07	-2.82	9.86	19.99	43.63	57.23	62.14	56.35	40.86	28.16	4.68	2.18
2019	-13.39	-10.73	13.17	27.39	39.68	54.87	61.71	56.80	41.70	34.21	11.02	-0.77
2020	-5.70	-1.56	7.25	20.04	38.85	52.73	64.28	64.83	42.36	27.05	6.50	15.76
2021	-5.47	-10.96	12.32	28.09	38.23	55.25	64.34	57.72	51.93	40.24	17.65	-12.52
2022	-15.57	-14.81	7.36	26.23	41.27	55.26	60.68	59.05	51.85	36.69	9.75	-5.12
2023	-0.68	-11.41	1.16	26.35	48.81	61.74	59.04	59.55	55.84	36.42	17.53	12.32
2024	-2.97	-0.82	5.04	33.58	43.44	53.20	64.53	63.82	M	35.35	23.22	3.70
2025	-6.73	-6.61	2.59	26.09	46.76	52.88	61.31	59.97	52.91	41.13	20.83	-11.49
2026	-8.10	-3.12	-3.48	19.89	43.39	57.49	63.43	60.31	51.72	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
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	80.0%	68.5%	78.3%	82.1%	75.4%
2005	74.9%	71.2%	68.1%	67.0%	59.9%	65.9%	69.0%	76.1%	78.9%	79.9%	80.5%	82.0%
2006	84.6%	70.1%	64.6%	62.3%	66.5%	57.8%	72.1%	67.1%	M	84.1%	87.7%	85.8%
2007	81.2%	72.0%	72.9%	63.3%	64.1%	64.5%	67.8%	77.1%	85.1%	85.7%	88.6%	83.0%
2008	82.3%	76.7%	71.6%	61.9%	65.4%	63.6%	71.6%	65.7%	79.6%	81.7%	90.9%	79.1%
2009	80.4%	77.5%	67.3%	70.1%	68.8%	71.4%	73.9%	75.2%	78.3%	87.8%	91.6%	81.9%
2010	80.7%	72.7%	73.3%	63.9%	70.2%	55.5%	69.1%	75.3%	80.4%	79.0%	86.3%	87.0%
2011	82.0%	74.6%	65.2%	64.0%	65.9%	57.2%	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	77.7%	76.9%	84.7%	85.3%	81.6%
2013	76.1%	75.3%	68.7%	64.0%	60.3%	53.8%	62.6%	73.9%	74.6%	84.9%	86.0%	75.6%
2014	77.3%	72.9%	67.3%	62.5%	65.7%	62.4%	70.5%	76.4%	M	M	79.6%	84.5%
2015	77.7%	69.2%	68.3%	67.5%	76.1%	53.3%	68.0%	77.7%	81.7%	81.8%	88.2%	88.9%
2016	83.2%	74.4%	67.6%	55.5%	66.1%	64.8%	73.4%	73.7%	78.0%	89.2%	87.5%	82.8%
2017	84.7%	78.9%	71.0%	64.9%	66.7%	67.0%	62.3%	64.2%	75.5%	86.2%	85.0%	94.1%
2018	83.4%	81.1%	67.8%	57.8%	57.2%	67.0%	68.8%	73.5%	75.4%	79.4%	83.7%	85.9%
2019	77.0%	74.2%	68.5%	61.2%	62.4%	63.6%	69.3%	77.9%	68.9%	81.7%	87.2%	86.7%
2020	81.9%	74.7%	68.7%	68.9%	62.5%	73.9%	74.3%	72.7%	M	M	86.2%	92.7%
2021	81.1%	74.4%	66.7%	63.6%	69.1%	69.0%	63.0%	71.8%	77.3%	81.4%	85.2%	78.2%
2022	74.1%	68.4%	67.9%	62.8%	69.0%	62.9%	74.2%	72.4%	74.1%	78.1%	83.5%	78.9%
2023	81.5%	73.3%	69.0%	60.4%	66.6%	64.4%	73.4%	77.3%	79.3%	82.1%	78.4%	83.0%
2024	79.6%	75.4%	63.0%	57.1%	73.0%	65.6%	67.8%	65.2%	M	77.1%	86.2%	83.9%
2025	76.0%	70.6%	65.0%	62.0%	55.4%	66.3%	63.7%	76.7%	76.2%	84.0%	81.0%	75.5%
2026	75.1%	75.0%	63.3%	67.4%	63.7%	69.1%	70.2%	75.0%	81.2%	M	M	M