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	0.00
2007	0.00	0.00	0.32	1.90	2.49	2.03	0.42	0.54	1.67	1.61	0.33	0.32
2008	0.22	0.33	0.47	0.96	2.01	1.99	2.06	0.67	1.46	0.26	0.68	0.94
2009	0.20	0.49	0.30	0.45	0.00	0.07	5.03	2.09	0.78	1.74	0.58	0.64
2010	0.39	0.18	0.24	1.71	5.79	4.04	1.94	1.80	1.61	0.45	1.34	0.20
2011	1.20	0.55	0.93	1.14	1.69	2.16	0.82	0.43	0.45	0.69	0.17	0.87
2012	0.62	0.64	0.70	1.43	3.66	5.85	3.18	2.06	0.06	0.94	0.60	0.37
2013	0.50	0.15	0.41	1.16	1.31	2.74	2.98	0.27	3.18	0.32	0.59	0.77
2014	0.38	0.22	0.86	1.15	1.97	3.67	1.47	3.03	2.23	0.62	1.10	0.33
2015	0.79	0.35	0.61	0.48	0.63	1.59	1.47	0.49	2.19	0.91	0.59	0.51
2016	0.44	0.30	0.28	2.40	3.21	1.50	3.96	3.18	1.04	1.05	0.02	0.62
2017	0.33	0.79	0.69	1.94	1.24	2.01	0.63	0.67	0.19	1.81	0.83	0.75
2018	0.45	0.75	0.67	0.47	1.02	0.97	0.95	0.55	1.39	0.61	0.73	0.25
2019	0.27	0.88	0.60	0.41	1.12	0.52	0.53	1.07	2.26	0.50	0.93	0.41
2020	0.50	0.58	0.33	0.37	2.40	2.81	0.76	0.20	1.15	1.19	0.87	0.32
2021	0.11	0.29	0.24	0.32	1.96	0.66	0.31	1.00	0.51	0.48	0.40	0.68
2022	0.19	0.38	0.51	0.61	0.79	4.67	1.32	0.25	0.48	1.10	0.59	0.76
2023	0.29	0.51	0.49	0.02	0.73	0.59	0.38	0.53	2.12	0.92	0.13	0.13
2024	0.46	0.59	1.04	0.99	4.30	1.59	1.38	1.89	2.76	0.12	0.83	0.22
2025	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
2004	M	M	M	M	M	M	M	M	M	10.4	11.4	11.9
2005	10.8	10.4	11.4	12.6	11.6	10.4	9.4	9.6	9.8	10.9	11.6	11.1
2006	11.0	10.8	10.1	11.5	11.5	9.2	8.2	8.8	9.6	9.6	12.0	13.3
2007	13.2	10.4	13.2	11.3	11.2	9.6	8.4	9.3	10.5	11.6	12.0	10.5
2008	12.2	10.1	9.9	10.8	9.8	9.3	8.8	10.5	8.6	11.4	11.3	11.2
2009	13.8	9.2	12.5	11.6	11.1	9.9	8.3	8.2	10.6	10.5	13.1	10.3
2010	10.7	8.7	11.9	14.2	12.2	9.8	9.1	8.9	9.2	9.0	10.3	10.1
2011	13.1	14.5	9.8	11.6	11.1	10.4	9.0	8.3	11.0	11.4	12.4	12.7
2012	12.9	9.7	12.9	10.5	11.5	11.3	8.2	8.4	8.8	11.0	9.9	8.4
2013	11.7	10.8	9.7	11.7	10.6	9.5	8.6	8.1	10.9	10.0	9.6	11.2
2014	11.8	10.7	9.7	10.7	9.4	9.9	8.2	8.1	9.2	11.3	10.4	10.2
2015	11.1	9.7	11.4	12.0	9.2	8.3	9.3	9.5	9.3	10.2	11.3	9.8
2016	9.9	10.2	11.6	11.3	11.3	11.1	8.3	8.8	9.6	9.1	10.2	12.2
2017	11.0	9.8	11.6	11.1	11.8	11.0	8.7	8.7	9.3	14.3	11.5	10.5
2018	12.0	12.6	9.4	10.8	9.9	10.2	8.7	8.7	8.2	9.9	10.3	11.7
2019	11.0	8.5	9.3	11.4	9.5	10.3	9.9	9.1	10.3	12.3	11.0	10.8
2020	11.4	11.9	12.5	11.9	11.7	10.3	9.7	8.9	10.2	10.3	14.2	11.4
2021	11.7	11.0	12.9	11.0	10.7	10.5	8.6	8.7	10.8	11.4	13.5	10.9
2022	12.5	12.4	11.8	12.8	12.3	10.6	8.2	9.1	9.6	11.2	11.8	10.5
2023	10.6	12.6	10.0	10.7	8.9	10.2	8.8	9.0	9.0	10.0	11.1	11.6
2024	9.6	10.4	9.6	12.4	11.6	10.3	8.1	8.3	9.6	10.1	9.7	11.2
2025	M	M	M	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	67.42	58.82	43.73	34.51	25.01
2005	22.48	40.70	44.90	56.88	64.95	67.40	79.91	M	55.60	57.21	44.70	29.98
2006	37.69	25.30	30.84	49.47	58.13	65.75	69.97	71.88	56.38	35.82	25.41	30.53
2007	32.44	28.21	50.44	49.85	64.68	73.79	88.75	79.25	66.15	58.60	41.35	24.69
2008	26.58	25.73	42.41	48.91	63.36	70.12	79.28	79.72	67.96	58.80	46.98	18.08
2009	23.95	25.15	34.35	53.74	65.49	70.65	76.02	75.46	78.15	45.28	46.51	13.62
2010	24.16	25.02	48.36	54.46	57.13	68.21	75.99	75.29	63.46	59.58	34.53	22.72
2011	19.64	20.34	28.87	48.38	61.21	68.29	79.06	80.32	76.01	58.22	41.15	35.68
2012	33.55	36.05	48.34	57.19	62.52	70.95	82.02	81.35	74.08	48.93	35.68	24.96
2013	26.57	36.63	38.85	49.70	68.38	71.54	77.66	82.22	74.05	53.56	34.90	21.53
2014	31.91	21.22	32.44	54.72	63.19	68.02	81.74	78.28	67.74	61.58	31.02	31.38
2015	30.18	33.02	51.05	57.69	65.63	78.15	80.72	81.29	67.99	60.64	40.14	30.34
2016	28.67	42.96	51.31	60.33	64.62	75.73	77.49	76.57	67.82	51.00	51.63	19.38
2017	23.92	31.33	41.44	54.74	69.76	74.55	86.96	82.28	71.26	52.27	34.69	26.58
2018	26.29	14.02	32.28	50.22	72.46	75.41	81.86	80.49	60.50	54.39	38.94	33.14
2019	35.37	2.99	36.86	56.62	62.59	74.64	80.74	77.04	64.84	48.21	34.25	30.58
2020	24.18	32.42	35.95	49.77	64.15	71.48	79.83	82.29	69.87	48.36	39.21	34.02
2021	33.72	18.72	49.92	55.85	61.29	80.10	87.02	77.95	73.25	59.75	47.37	19.96
2022	29.54	31.49	43.28	49.64	64.36	70.57	81.48	86.16	76.05	60.81	26.16	18.07
2023	29.54	31.09	28.08	51.13	73.15	77.87	83.93	80.83	71.97	52.51	44.87	43.90
2024	20.67	31.72	32.52	55.39	61.81	70.31	84.25	80.89	74.12	61.29	34.89	29.65
2025	M	M	M	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	58.92	55.65	35.85	26.83	19.86
2005	4.13	14.88	22.69	31.63	37.49	47.56	51.61	M	48.60	34.03	23.06	13.47
2006	22.26	16.49	24.12	44.53	52.15	59.12	62.04	62.92	52.82	35.58	21.41	25.98
2007	11.65	7.33	26.58	28.84	41.68	48.42	57.88	50.35	40.07	34.84	18.62	6.39
2008	5.17	5.79	21.64	24.92	40.98	46.37	51.12	50.31	41.35	30.82	27.16	-0.32
2009	3.99	8.45	15.15	29.67	37.68	44.79	52.35	50.24	45.62	28.96	25.09	-2.06
2010	9.76	8.90	27.59	32.14	37.05	47.12	47.38	49.00	41.82	33.45	12.29	6.36
2011	5.33	3.14	14.38	28.70	39.56	47.79	50.68	51.06	45.49	34.94	19.11	16.67
2012	13.29	12.38	25.13	31.80	39.10	48.31	54.80	50.35	41.86	29.33	18.96	5.51
2013	10.20	20.20	17.13	26.83	42.27	49.10	52.63	53.56	48.44	31.09	15.05	1.39
2014	11.81	-0.82	15.68	30.68	39.73	45.85	53.74	53.19	42.79	36.30	14.10	15.68
2015	13.21	11.66	25.93	31.44	37.52	50.46	52.31	52.49	42.23	33.97	20.48	15.02
2016	12.49	23.65	27.40	34.62	41.51	49.38	52.66	51.55	41.22	31.83	28.70	2.35
2017	7.94	12.78	20.10	32.31	41.95	49.41	54.00	52.72	42.59	30.69	15.47	8.26
2018	7.31	-5.98	16.02	27.45	45.31	48.53	52.15	50.24	39.57	30.49	19.84	16.49
2019	13.68	-14.51	13.27	30.96	38.73	47.36	51.30	52.71	44.57	25.52	18.35	16.59
2020	9.13	14.29	18.25	28.57	40.39	49.85	52.25	51.81	44.32	29.75	20.71	19.84
2021	18.97	-0.94	26.72	28.61	39.34	52.09	57.74	52.89	44.65	32.93	24.81	0.40
2022	12.43	12.06	21.84	27.35	40.25	48.30	55.34	55.91	47.87	36.46	10.57	-0.47
2023	17.35	15.10	8.62	30.29	46.68	52.58	55.74	53.98	46.85	32.65	25.28	27.28
2024	3.18	13.33	16.26	34.35	40.53	46.85	55.95	52.66	48.17	34.07	16.92	16.75
2025	M	M	M	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	63.17	57.23	39.79	30.67	22.44
2005	13.30	27.79	33.80	44.25	51.22	57.48	65.76	M	52.10	45.62	33.88	21.73
2006	29.98	20.89	27.48	47.00	55.14	62.43	66.01	67.40	54.60	35.70	23.41	28.25
2007	22.04	17.77	38.51	39.35	53.18	61.10	73.31	64.80	53.11	46.72	29.99	15.54
2008	15.88	15.76	32.02	36.91	52.17	58.24	65.20	65.01	54.65	44.81	37.07	8.88
2009	13.97	16.80	24.75	41.71	51.58	57.72	64.18	62.85	61.88	37.12	35.80	5.78
2010	16.96	16.96	37.98	43.30	47.09	57.67	61.68	62.15	52.64	46.52	23.41	14.54
2011	12.48	11.74	21.63	38.54	50.39	58.04	64.87	65.69	60.75	46.58	30.13	26.17
2012	23.42	24.21	36.74	44.49	50.81	59.63	68.41	65.85	57.97	39.13	27.32	15.23
2013	18.39	28.42	27.99	38.27	55.33	60.32	65.15	67.89	61.25	42.32	24.98	11.46
2014	21.86	10.20	24.06	42.70	51.46	56.94	67.74	65.73	55.27	48.94	22.56	23.53
2015	21.70	22.34	38.49	44.56	51.58	64.30	66.51	66.89	55.11	47.31	30.31	22.68
2016	20.58	33.31	39.35	47.48	53.06	62.56	65.07	64.06	54.52	41.42	40.16	10.87
2017	15.93	22.05	30.77	43.52	55.86	61.98	70.48	67.50	56.93	41.48	25.08	17.42
2018	16.80	4.02	24.15	38.84	58.89	61.97	67.00	65.36	50.04	42.44	29.39	24.81
2019	24.53	-5.76	25.07	43.79	50.66	61.00	66.02	64.87	54.71	36.86	26.30	23.59
2020	16.66	23.35	27.10	39.17	52.27	60.66	66.04	67.05	57.10	39.05	29.96	26.93
2021	26.35	8.89	38.32	42.23	50.32	66.10	72.38	65.42	58.95	46.34	36.09	10.18
2022	20.98	21.77	32.56	38.50	52.31	59.44	68.41	71.04	61.96	48.63	18.36	8.80
2023	23.44	23.10	18.35	40.71	59.92	65.22	69.83	67.40	59.41	42.58	35.07	35.59
2024	11.93	22.53	24.39	44.87	51.17	58.58	70.10	66.77	61.15	47.68	25.91	23.20
2025	M	M	M	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	M	M	83.9%	70.1%	74.8%
2005	77.2%	64.4%	68.4%	55.2%	50.7%	74.1%	58.6%	61.4%	65.1%	67.1%	70.6%	M
2006	77.2%	72.0%	76.6%	58.0%	59.1%	67.5%	53.5%	50.2%	60.0%	70.7%	70.9%	69.8%
2007	71.0%	77.4%	62.3%	70.4%	63.2%	62.5%	47.7%	52.4%	60.1%	59.5%	63.2%	76.6%
2008	72.7%	78.9%	67.7%	60.7%	63.2%	63.9%	57.2%	51.3%	63.4%	54.6%	65.1%	75.3%
2009	74.2%	79.4%	71.5%	52.5%	50.8%	55.8%	61.3%	63.4%	45.6%	75.0%	64.2%	81.0%
2010	82.6%	83.3%	68.3%	58.8%	68.1%	69.9%	67.7%	66.7%	71.6%	67.1%	73.5%	81.7%
2011	80.1%	77.5%	80.3%	66.8%	63.9%	67.5%	60.0%	58.1%	49.1%	65.1%	65.7%	78.7%
2012	69.0%	74.8%	70.6%	63.8%	64.9%	71.1%	68.1%	58.0%	53.6%	77.4%	86.0%	85.3%
2013	82.0%	80.9%	77.9%	66.8%	54.7%	69.7%	68.6%	61.1%	61.0%	72.3%	84.2%	83.3%
2014	80.6%	77.1%	79.4%	65.4%	63.1%	70.9%	62.5%	71.1%	70.7%	66.1%	85.7%	85.5%
2015	82.8%	82.5%	70.6%	57.4%	53.0%	57.3%	60.2%	53.3%	66.3%	66.8%	77.3%	82.9%
2016	83.1%	75.3%	63.7%	56.7%	62.4%	59.2%	69.8%	69.3%	65.7%	78.3%	71.2%	77.6%
2017	79.4%	79.3%	69.7%	69.0%	54.4%	58.4%	52.1%	48.5%	53.1%	67.1%	80.0%	73.5%
2018	80.4%	79.4%	84.9%	64.6%	56.0%	58.2%	57.3%	54.3%	72.3%	68.0%	81.6%	79.4%
2019	78.7%	79.3%	77.5%	55.4%	59.3%	58.1%	56.2%	60.5%	71.6%	70.5%	85.1%	86.0%
2020	80.8%	83.3%	78.4%	61.2%	59.9%	63.3%	60.5%	48.0%	59.2%	71.5%	78.3%	80.8%
2021	77.6%	73.5%	62.9%	53.9%	64.1%	50.3%	51.0%	57.9%	51.2%	55.9%	68.5%	77.6%
2022	73.8%	72.1%	67.0%	55.6%	49.9%	65.0%	62.7%	49.9%	51.8%	62.6%	82.0%	80.5%
2023	82.9%	75.3%	82.7%	65.2%	55.4%	57.2%	50.0%	54.7%	54.4%	71.8%	71.4%	68.9%
2024	78.2%	82.7%	78.9%	58.4%	68.5%	59.2%	57.2%	53.6%	60.2%	59.7%	75.8%	80.9%
2025	M	M	M	M	M	M	M	M	M	M	M	M