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	0.04	1.97	2.35	1.32	0.02	1.01	1.94	0.65	0.36	0.57
2008	0.44	0.49	0.22	1.23	3.18	2.95	0.99	1.41	2.37	0.40	1.18	1.91
2009	0.87	1.09	0.53	0.49	0.55	2.50	2.53	1.77	0.53	1.52	0.25	1.34
2010	0.69	0.31	0.14	2.02	4.01	3.43	3.34	1.80	1.99	0.92	3.23	1.80
2011	2.37	2.47	1.73	1.53	3.74	3.05	2.18	1.03	1.59	3.19	0.37	0.74
2012	0.24	0.61	0.83	2.31	5.67	5.89	2.02	0.76	0.57	1.78	0.70	0.35
2013	0.56	0.17	0.30	0.75	1.39	3.85	1.64	1.52	1.87	0.88	0.51	0.60
2014	0.51	0.18	0.55	1.16	1.25	5.03	0.49	2.97	2.16	0.76	1.38	0.28
2015	0.83	0.25	0.78	0.42	0.70	0.32	1.66	0.39	1.68	0.84	0.54	0.44
2016	0.33	0.30	0.43	2.57	2.24	2.51	1.89	3.08	1.49	1.05	0.02	0.82
2017	0.33	0.76	0.42	0.94	1.37	2.05	0.54	0.39	0.12	0.91	0.60	0.85
2018	0.44	0.99	1.24	0.32	1.10	1.26	1.40	0.57	0.92	0.55	0.55	0.25
2019	0.33	1.00	0.30	0.14	1.61	1.03	1.20	1.03	2.23	0.41	1.66	0.32
2020	0.30	0.33	0.28	0.51	3.88	3.62	0.55	0.14	1.43	0.92	0.75	0.30
2021	0.12	0.71	0.17	0.46	1.59	0.52	0.86	1.31	0.49	0.58	0.28	0.75
2022	0.21	0.33	0.62	0.23	0.59	5.36	2.08	1.15	0.34	1.25	0.83	0.79
2023	0.16	0.68	0.30	0.10	1.35	0.69	0.25	1.43	0.42	0.99	0.20	0.24
2024	0.75	0.40	0.85	0.91	M	M	M	M	M	M	M	M
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	9.6	9.9	10.4	11.7	12.5
2005	11.4	11.0	12.2	12.6	12.6	10.4	9.8	9.7	10.2	11.6	12.3	11.8
2006	12.6	12.2	12.1	11.6	12.0	10.6	8.7	9.0	10.8	10.3	13.0	13.4
2007	13.5	11.2	14.2	12.3	12.1	10.4	9.2	9.8	10.9	13.6	12.8	11.3
2008	13.0	11.9	11.2	10.9	10.3	9.8	9.1	11.2	8.5	11.5	11.3	12.4
2009	15.4	9.9	13.3	12.5	12.3	9.9	9.3	9.4	11.5	11.0	14.3	11.2
2010	12.1	10.7	12.7	15.0	12.2	11.2	9.6	9.1	9.9	9.9	11.4	12.0
2011	14.4	14.5	12.8	12.6	12.5	10.6	9.1	8.4	11.7	10.7	13.3	13.4
2012	14.0	10.5	13.8	11.9	12.2	12.2	8.2	8.9	9.7	11.7	10.1	9.7
2013	12.9	11.7	11.0	12.2	11.5	9.4	8.8	8.1	11.0	10.3	10.3	12.2
2014	12.5	11.7	10.6	12.5	9.4	9.6	8.8	8.6	10.0	12.2	10.8	11.7
2015	12.7	10.4	12.3	12.2	10.5	8.9	9.2	9.6	10.0	11.6	12.9	11.4
2016	10.9	11.2	12.9	12.5	10.4	10.7	8.2	9.3	10.0	9.4	11.6	12.0
2017	11.2	10.1	12.0	12.1	12.0	11.5	9.6	8.8	9.0	14.8	13.0	11.1
2018	13.1	12.4	11.0	10.7	10.4	10.8	8.8	9.1	8.4	10.0	11.1	11.3
2019	11.4	8.8	9.5	11.9	10.0	9.7	9.9	9.3	10.9	12.7	11.0	12.2
2020	11.9	13.3	12.7	12.1	11.8	10.8	8.9	9.0	10.2	10.7	14.5	11.4
2021	11.2	11.3	12.3	10.9	10.8	10.5	8.6	9.7	11.1	12.1	13.3	11.0
2022	12.5	12.9	12.0	13.3	12.4	11.0	7.8	9.1	10.0	10.5	12.1	11.8
2023	11.3	13.0	10.4	11.8	9.7	9.2	8.5	9.3	9.3	9.7	10.9	12.3
2024	11.2	10.6	10.1	11.0	M	M	M	M	M	M	M	M
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	69.24	60.02	45.22	35.45	27.63
2005	24.85	42.81	45.41	56.59	64.68	68.15	80.94	M	55.60	57.64	46.52	32.09
2006	41.33	27.97	29.75	47.88	58.40	65.13	70.00	72.16	53.75	35.53	25.87	30.52
2007	34.47	29.04	51.95	50.24	65.04	73.60	89.62	80.19	66.98	59.01	43.16	29.39
2008	28.38	29.01	43.64	49.91	63.54	70.17	80.21	80.39	67.80	58.77	47.54	21.08
2009	28.16	29.16	37.69	53.46	65.75	70.65	77.82	77.07	79.22	46.22	48.98	16.15
2010	24.62	27.81	48.63	53.89	57.20	68.95	76.87	75.08	63.59	61.21	34.71	21.67
2011	21.62	22.38	30.24	48.77	60.26	67.67	79.10	80.55	76.43	57.45	41.75	36.90
2012	33.81	36.30	48.80	56.73	60.84	69.42	81.23	82.12	74.48	49.27	37.29	28.46
2013	29.55	39.04	40.44	49.39	66.81	70.61	77.25	81.48	72.75	52.91	36.35	23.61
2014	34.46	22.85	31.91	54.16	62.52	66.43	80.21	77.92	67.90	60.99	30.87	32.17
2015	31.18	33.81	50.64	57.35	63.67	77.95	80.16	81.28	68.17	60.44	39.94	30.28
2016	28.78	44.41	50.93	60.06	62.68	74.37	76.85	76.31	66.99	50.91	51.90	20.27
2017	24.34	31.41	41.59	53.45	68.91	73.43	86.66	79.30	66.12	52.08	34.64	27.99
2018	27.45	14.63	28.90	41.14	70.85	72.17	81.59	80.53	60.43	54.42	40.36	33.90
2019	36.77	3.75	36.76	55.49	61.11	73.47	80.44	77.41	65.08	46.54	34.91	31.47
2020	25.42	34.75	37.04	49.07	63.31	70.03	78.80	82.93	69.89	48.72	39.97	35.59
2021	35.05	18.05	49.82	54.42	60.16	79.55	87.21	78.22	73.47	59.19	47.49	20.63
2022	32.52	32.94	43.83	48.43	63.26	69.91	80.64	85.49	75.58	61.04	25.84	17.82
2023	30.81	32.06	26.69	51.19	71.70	75.32	83.45	80.77	70.96	52.45	46.42	44.17
2024	21.34	32.33	33.39	48.49	M	M	M	M	M	M	M	M
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	60.19	56.45	39.41	27.70	21.99
2005	4.92	15.93	22.21	30.77	38.29	47.99	50.75	M	48.90	33.51	23.26	13.52
2006	23.54	17.54	23.42	42.28	52.55	58.04	61.13	62.68	49.11	34.58	22.14	25.58
2007	11.69	10.24	26.97	28.98	42.08	47.34	56.97	49.86	40.09	35.25	20.13	8.21
2008	5.62	8.03	22.70	24.84	40.97	46.08	50.03	49.74	41.41	30.10	26.62	1.79
2009	7.11	11.49	16.79	29.45	38.45	43.56	50.64	50.33	44.88	28.77	26.23	-2.44
2010	10.27	9.69	27.63	30.89	37.33	47.80	50.62	49.65	41.99	35.11	13.89	6.87
2011	6.55	3.37	16.19	29.97	40.02	48.20	50.37	51.25	44.28	33.79	20.14	18.32
2012	14.27	11.67	26.45	31.69	40.84	47.94	53.59	49.02	41.20	28.09	18.91	7.36
2013	12.10	20.05	17.72	27.08	41.58	47.89	52.31	52.72	46.74	30.82	16.66	1.59
2014	14.71	0.33	16.53	30.19	39.30	45.70	52.54	51.46	40.90	35.90	12.44	17.25
2015	14.72	12.93	26.64	30.82	36.88	48.13	50.66	50.60	41.79	33.73	21.13	14.50
2016	12.69	24.84	26.72	34.48	39.67	47.01	50.28	50.18	41.43	31.87	29.71	3.15
2017	8.43	14.01	20.58	32.32	41.10	47.64	52.68	49.38	42.53	30.71	17.47	10.02
2018	8.87	-5.70	11.78	21.98	44.47	48.48	49.77	49.11	39.59	29.84	20.73	16.40
2019	14.38	-17.61	11.93	30.76	38.01	46.19	50.19	52.10	43.86	24.47	17.37	16.43
2020	10.03	17.65	18.94	27.86	40.53	49.48	49.61	50.75	43.88	28.11	20.48	19.92
2021	17.99	-2.22	25.52	29.46	38.96	50.38	56.20	52.27	44.62	32.09	25.02	0.48
2022	13.82	13.39	20.00	25.83	38.40	48.14	53.39	54.62	45.70	35.67	8.85	0.18
2023	17.32	15.01	6.36	29.70	45.97	49.70	53.05	52.60	45.82	31.11	26.36	26.70
2024	4.09	13.18	16.49	33.27	M	M	M	M	M	M	M	M
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	64.71	58.24	42.31	31.58	24.81
2005	14.89	29.37	33.81	43.68	51.49	58.07	65.85	M	52.25	45.58	34.89	22.80
2006	32.43	22.76	26.58	45.08	55.47	61.58	65.57	67.42	51.43	35.05	24.01	28.05
2007	23.08	19.64	39.46	39.61	53.56	60.47	73.29	65.03	53.53	47.13	31.65	18.80
2008	17.00	18.52	33.17	37.37	52.25	58.12	65.12	65.07	54.60	44.43	37.08	11.44
2009	17.64	20.32	27.24	41.46	52.10	57.11	64.23	63.70	62.05	37.50	37.60	6.86
2010	17.45	18.75	38.13	42.39	47.26	58.37	63.74	62.37	52.79	48.16	24.30	14.27
2011	14.08	12.87	23.21	39.37	50.14	57.94	64.73	65.90	60.36	45.62	30.95	27.61
2012	24.04	23.98	37.63	44.21	50.84	58.68	67.41	65.57	57.84	38.68	28.10	17.91
2013	20.83	29.54	29.08	38.23	54.19	59.25	64.78	67.10	59.74	41.86	26.51	12.60
2014	24.59	11.59	24.22	42.17	50.91	56.07	66.37	64.69	54.40	48.44	21.66	24.71
2015	22.95	23.37	38.64	44.09	50.27	63.04	65.41	65.94	54.98	47.09	30.54	22.39
2016	20.74	34.63	38.82	47.27	51.18	60.69	63.57	63.25	54.21	41.39	40.80	11.71
2017	16.38	22.71	31.08	42.89	55.00	60.54	69.67	64.34	54.33	41.40	26.06	19.00
2018	18.16	4.47	20.34	31.56	57.66	60.32	65.68	64.82	50.01	42.13	30.54	25.15
2019	25.58	-6.93	24.35	43.12	49.56	59.83	65.31	64.76	54.47	35.50	26.14	23.95
2020	17.72	26.20	27.99	38.47	51.92	59.76	64.21	66.84	56.88	38.42	30.23	27.76
2021	26.52	7.92	37.67	41.94	49.56	64.96	71.70	65.24	59.05	45.64	36.25	10.55
2022	23.17	23.17	31.91	37.13	50.83	59.03	67.02	70.05	60.64	48.35	17.34	9.00
2023	24.06	23.53	16.53	40.44	58.84	62.51	68.25	66.69	58.39	41.78	36.39	35.44
2024	12.72	22.75	24.94	40.88	M	M	M	M	M	M	M	M
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	71.3%	71.0%	75.3%	67.4%	71.2%
2005	75.0%	59.3%	66.9%	55.2%	47.5%	71.0%	54.2%	56.9%	61.7%	67.1%	64.1%	72.9%
2006	74.2%	67.9%	79.6%	58.9%	52.2%	65.3%	49.6%	46.1%	55.7%	71.3%	68.8%	68.4%
2007	69.2%	78.8%	59.9%	68.7%	60.5%	59.9%	42.1%	48.8%	57.1%	56.7%	58.4%	73.4%
2008	72.5%	79.0%	62.4%	56.6%	61.9%	63.4%	54.6%	47.4%	62.9%	55.6%	66.8%	73.6%
2009	74.3%	78.8%	69.5%	54.0%	48.1%	52.5%	58.0%	58.4%	41.1%	73.4%	56.9%	79.4%
2010	82.9%	85.9%	68.7%	58.4%	65.1%	64.9%	63.4%	63.1%	70.9%	62.3%	71.0%	81.9%
2011	80.1%	75.2%	80.4%	65.1%	65.4%	69.0%	60.2%	54.1%	44.7%	62.3%	61.6%	71.7%
2012	62.7%	71.9%	65.7%	60.7%	64.2%	68.5%	65.7%	49.0%	46.1%	75.5%	82.7%	77.5%
2013	75.3%	74.5%	74.0%	64.8%	54.1%	68.3%	67.7%	58.4%	61.0%	68.5%	78.2%	79.4%
2014	75.0%	72.4%	76.3%	61.5%	61.2%	70.6%	62.1%	67.3%	66.4%	64.2%	83.1%	81.5%
2015	76.6%	79.7%	66.1%	54.0%	54.7%	56.0%	57.7%	48.4%	61.2%	62.5%	73.1%	79.3%
2016	79.3%	68.7%	60.8%	56.5%	61.4%	57.6%	66.7%	63.9%	61.0%	75.6%	66.9%	71.7%
2017	75.8%	75.4%	66.8%	65.4%	50.7%	55.8%	43.9%	45.5%	52.7%	62.5%	75.8%	67.0%
2018	78.0%	77.6%	85.3%	70.4%	54.6%	59.9%	55.6%	47.9%	68.9%	65.6%	76.5%	74.2%
2019	74.1%	76.4%	74.9%	52.8%	61.1%	57.6%	53.3%	56.1%	66.2%	68.5%	80.4%	82.4%
2020	77.1%	75.9%	73.4%	61.6%	58.4%	63.9%	62.2%	43.6%	57.8%	69.5%	73.6%	75.3%
2021	73.8%	72.9%	62.3%	55.0%	63.3%	49.9%	49.2%	55.1%	46.3%	52.0%	65.9%	77.0%
2022	69.7%	67.7%	66.6%	52.7%	45.8%	63.6%	64.7%	49.3%	50.2%	62.9%	77.9%	77.7%
2023	78.3%	71.3%	82.0%	66.3%	56.6%	60.2%	49.0%	53.5%	56.0%	71.7%	66.6%	66.6%
2024	76.1%	80.9%	76.7%	76.0%	M	M	M	M	M	M	M	M
2025	M	M	M	M	M	M	M	M	M	M	M	M