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	0.14	0.01	0.81	0.65	1.05	4.80	2.29	2.97	5.37	3.93	6.60	2.71
2008	3.20	2.67	3.37	2.32	4.54	4.34	4.19	1.80	4.86	8.45	3.54	3.94
2009	1.35	1.08	0.72	4.70	1.96	3.03	4.85	3.56	3.78	5.80	1.67	1.95
2010	2.27	1.39	1.54	2.30	5.00	3.78	3.67	2.43	5.20	9.98	2.98	6.83
2011	1.89	1.29	3.14	4.47	6.08	3.10	2.72	3.57	2.58	3.09	4.34	2.53
2012	1.58	0.58	1.08	5.18	2.98	2.07	2.43	4.30	4.48	7.33	2.45	10.99
2013	0.00	0.00	2.63	2.08	4.57	2.07	1.61	2.16	3.68	2.94	5.57	1.60
2014	4.20	1.97	2.06	4.13	4.38	1.95	4.28	2.76	5.59	6.10	3.36	4.02
2015	2.96	1.22	1.95	3.48	2.76	4.60	7.12	4.71	2.05	3.08	5.07	1.27
2016	1.59	3.71	1.99	2.11	3.07	5.63	4.11	3.07	3.53	5.75	3.86	3.63
2017	3.41	2.38	2.29	3.50	4.99	4.45	2.63	5.77	4.80	4.72	6.00	3.22
2018	3.02	1.95	1.14	4.18	2.45	2.46	1.61	2.94	6.39	2.94	3.94	2.71
2019	4.12	2.89	3.49	3.88	3.19	2.63	1.27	4.70	3.75	3.11	4.30	3.25
2020	1.65	1.25	3.63	3.34	1.74	1.49	5.06	3.99	4.68	6.36	3.43	8.27
2021	0.82	1.85	3.01	4.48	3.51	4.74	3.48	2.23	5.84	5.53	4.17	3.63
2022	2.48	3.54	3.12	3.14	4.36	3.53	5.68	2.62	2.08	6.97	2.38	5.20
2023	1.96	1.66	2.30	3.31	2.13	4.48	4.70	8.23	3.90	3.90	3.41	3.28
2024	3.14	1.34	4.80	3.09	3.16	2.02	1.01	4.34	2.29	7.22	4.48	4.59
2025	2.36	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	5.8	5.7	6.1	6.8	6.8
2005	6.6	6.4	7.2	9.8	6.9	6.0	5.6	5.0	6.0	5.4	7.3	7.3
2006	7.2	6.9	6.8	7.4	6.9	5.5	5.9	5.4	5.3	7.4	6.0	6.0
2007	6.7	7.6	8.1	7.3	6.6	6.2	4.8	5.3	6.5	5.8	6.8	6.5
2008	6.6	6.6	7.3	6.9	6.1	7.3	5.0	5.6	5.1	6.2	6.6	6.9
2009	6.7	6.5	6.7	7.7	6.0	6.5	5.3	5.6	5.3	5.8	5.3	6.7
2010	7.1	7.3	6.4	5.9	6.5	6.0	4.6	5.0	5.4	6.6	5.4	9.7
2011	6.0	6.8	7.0	6.7	6.2	6.5	4.5	5.5	5.1	5.7	5.4	5.7
2012	6.8	6.0	6.3	7.4	6.1	5.8	5.0	5.0	5.5	6.8	6.0	6.7
2013	5.8	6.9	7.1	6.9	5.8	5.5	5.2	4.7	6.0	5.2	6.5	5.8
2014	6.3	6.2	7.2	6.5	5.2	5.7	4.7	5.0	5.4	6.2	6.6	6.4
2015	6.5	6.6	6.7	7.3	6.4	5.1	6.2	4.5	5.2	6.4	6.1	5.9
2016	6.3	6.7	6.7	7.0	5.6	6.0	5.1	4.5	5.5	5.6	5.7	6.6
2017	6.1	6.5	7.3	6.2	7.2	5.2	5.0	5.0	4.8	6.1	6.2	5.9
2018	6.7	5.9	6.7	6.5	6.2	5.8	4.9	4.5	5.1	5.8	6.7	6.0
2019	7.7	8.4	6.3	7.3	5.8	6.3	5.4	4.8	5.0	5.4	6.9	6.8
2020	5.7	6.3	6.6	6.7	6.3	5.5	4.8	5.4	4.8	5.6	5.2	6.3
2021	6.1	5.7	7.8	5.7	6.2	5.0	4.5	4.5	5.6	4.6	6.0	6.9
2022	6.5	6.1	7.2	7.3	6.5	5.8	5.2	4.2	5.4	5.9	6.0	6.6
2023	5.8	6.0	6.1	6.4	6.5	4.9	4.9	5.3	4.5	5.4	5.7	5.8
2024	6.5	6.3	6.4	6.5	5.9	4.9	4.1	4.0	4.2	6.0	5.5	6.4
2025	6.7	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	57.48	52.12	42.59	27.89	12.35
2005	14.44	M	M	M	M	57.99	65.78	M	48.00	48.15	36.52	20.81
2006	22.51	10.87	27.97	35.84	49.37	59.72	62.75	60.98	50.39	41.28	32.79	19.23
2007	17.17	18.32	26.96	38.97	50.91	60.09	66.94	63.92	56.64	49.97	32.14	17.94
2008	17.13	18.40	24.14	41.20	51.44	58.56	66.92	67.24	57.70	48.58	36.50	20.40
2009	12.75	24.51	27.49	40.92	48.88	60.51	64.21	65.80	57.86	43.51	39.45	25.79
2010	25.06	30.94	35.06	44.75	54.38	61.89	68.49	66.28	58.24	47.65	38.04	32.70
2011	20.96	17.86	28.76	37.72	48.08	56.56	67.29	64.16	59.94	48.80	37.53	23.01
2012	16.50	20.81	31.05	40.26	51.47	62.32	68.93	67.33	59.83	46.85	36.51	25.08
2013	15.35	22.66	34.31	38.61	51.49	59.99	68.31	65.92	56.73	48.53	34.71	12.51
2014	16.50	17.29	22.40	38.04	49.05	64.37	68.85	69.10	57.39	48.36	31.31	24.52
2015	11.15	9.49	25.90	37.24	51.15	59.26	62.64	68.35	61.29	44.72	33.82	27.29
2016	19.88	21.02	24.53	36.84	53.11	60.36	65.14	66.23	58.65	48.89	38.12	21.67
2017	19.05	20.59	26.21	37.33	51.41	60.95	67.10	64.24	58.28	49.69	33.59	20.55
2018	16.49	19.97	33.98	37.02	47.96	58.93	69.47	68.73	56.83	40.66	30.46	22.07
2019	17.95	15.71	26.73	37.59	49.73	58.42	69.96	66.94	57.33	48.58	31.97	24.29
2020	17.87	22.94	28.64	39.18	53.12	63.32	67.79	67.32	56.70	43.56	34.80	29.48
2021	25.61	24.90	31.33	45.58	50.75	62.67	66.75	68.67	59.52	52.74	39.32	26.45
2022	11.60	16.70	27.79	40.76	51.56	61.43	68.49	68.87	58.50	50.69	34.02	28.85
2023	21.25	16.91	33.11	40.83	54.42	61.38	69.15	64.89	63.78	52.76	34.06	29.39
2024	22.30	26.29	33.16	40.42	50.87	65.91	70.98	67.92	61.45	49.41	39.71	26.71
2025	24.83	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	54.38	49.40	38.32	24.05	6.52
2005	-9.19	M	M	M	M	42.28	48.04	M	43.50	34.36	23.70	6.73
2006	5.39	2.91	24.09	34.51	45.13	56.64	59.45	54.72	48.59	40.78	30.27	14.91
2007	-2.16	-0.99	7.75	23.59	33.00	43.34	50.15	47.70	39.64	33.98	19.00	-1.07
2008	-2.14	-4.61	1.72	26.60	36.23	46.12	53.35	51.74	41.64	32.16	24.42	1.82
2009	-6.46	6.51	6.91	27.73	31.77	46.50	51.55	49.40	39.18	31.15	26.49	12.40
2010	10.85	19.83	17.48	30.83	37.96	42.62	52.88	51.57	43.95	34.24	24.64	22.01
2011	7.05	-2.61	10.19	22.13	34.04	44.96	49.50	51.45	41.11	35.27	22.26	4.37
2012	-3.02	2.58	10.43	27.81	34.91	47.27	52.36	55.18	43.68	36.00	24.58	11.03
2013	-6.77	3.33	22.21	24.73	33.68	41.65	50.23	50.21	42.95	34.31	21.18	-3.60
2014	-4.20	-3.45	1.64	23.46	35.91	46.22	52.35	54.01	40.16	34.72	18.20	10.73
2015	-9.10	-9.90	5.32	22.62	34.35	42.31	50.12	54.63	44.30	31.01	22.70	15.69
2016	4.16	-4.15	3.90	21.40	34.71	46.56	50.07	51.77	41.75	34.04	27.20	3.17
2017	2.45	0.98	6.73	26.26	35.96	45.38	48.83	48.72	44.03	33.96	19.00	5.63
2018	-3.78	-5.56	20.44	19.67	30.36	40.66	53.53	52.94	39.28	28.76	19.13	5.61
2019	-5.18	-2.06	4.54	24.05	34.20	43.54	52.31	51.92	39.20	33.00	19.43	7.35
2020	-1.56	0.97	7.41	23.79	34.48	45.65	54.39	51.41	38.64	30.80	19.73	15.86
2021	11.05	5.35	13.91	30.72	35.05	45.29	50.38	52.17	45.95	37.89	28.51	9.84
2022	-10.24	-4.72	10.51	28.79	33.80	45.69	51.51	53.42	43.64	37.42	20.42	14.67
2023	3.17	-7.36	19.08	26.34	35.59	47.75	57.47	51.63	46.49	39.34	19.37	14.76
2024	1.84	6.94	21.03	25.57	38.06	48.04	52.69	52.57	43.97	35.64	29.33	12.54
2025	12.81	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	55.93	50.76	40.46	25.97	9.43
2005	2.63	M	M	M	M	50.13	56.91	M	45.75	41.25	30.11	13.77
2006	13.95	6.89	26.03	35.17	47.25	58.18	61.10	57.85	49.49	41.03	31.53	17.07
2007	7.51	8.67	17.36	31.28	41.96	51.71	58.55	55.81	48.14	41.97	25.57	8.43
2008	7.50	6.89	12.93	33.90	43.84	52.34	60.14	59.49	49.67	40.37	30.46	11.11
2009	3.14	15.51	17.20	34.33	40.33	53.51	57.88	57.60	48.52	37.33	32.97	19.10
2010	17.96	25.38	26.27	37.79	46.17	52.26	60.68	58.93	51.09	40.95	31.34	27.35
2011	14.00	7.62	19.47	29.92	41.06	50.76	58.39	57.81	50.52	42.04	29.90	13.69
2012	6.74	11.70	20.74	34.04	43.19	54.80	60.64	61.26	51.75	41.43	30.55	18.05
2013	4.29	12.99	28.26	31.67	42.58	50.82	59.27	58.07	49.84	41.42	27.95	4.45
2014	6.15	6.92	12.02	30.75	42.48	55.30	60.60	61.55	48.78	41.54	24.76	17.62
2015	1.02	-0.21	15.61	29.93	42.75	50.79	56.38	61.49	52.80	37.86	28.26	21.49
2016	12.02	8.43	14.21	29.12	43.91	53.46	57.61	59.00	50.20	41.46	32.66	12.42
2017	10.75	10.78	16.47	31.80	43.69	53.16	57.96	56.48	51.15	41.83	26.30	13.09
2018	6.36	7.21	27.21	28.34	39.16	49.79	61.50	60.83	48.05	34.71	24.79	13.84
2019	6.39	6.83	15.63	30.82	41.97	50.98	61.13	59.43	48.26	40.79	25.70	15.82
2020	8.15	11.96	18.02	31.48	43.80	54.48	61.09	59.36	47.67	37.18	27.27	22.67
2021	18.33	15.12	22.62	38.15	42.90	53.98	58.56	60.42	52.74	45.31	33.91	18.15
2022	0.68	5.99	19.15	34.77	42.68	53.56	60.00	61.14	51.07	44.05	27.22	21.76
2023	12.21	4.77	26.09	33.58	45.01	54.57	63.31	58.26	55.13	46.05	26.72	22.08
2024	12.07	16.61	27.10	32.99	44.47	56.98	61.84	60.25	52.71	42.52	34.52	19.63
2025	18.82	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	88.1%	81.5%	86.7%	84.8%	84.2%
2005	62.2%	73.9%	66.5%	72.4%	75.1%	75.8%	74.2%	80.2%	80.5%	84.0%	81.1%	75.7%
2006	75.6%	75.6%	73.6%	68.7%	71.7%	77.6%	78.9%	76.2%	82.5%	82.1%	80.2%	81.8%
2007	78.0%	70.2%	71.9%	66.9%	68.2%	80.8%	85.3%	83.2%	80.8%	75.8%	80.5%	72.3%
2008	77.0%	72.1%	69.4%	69.9%	76.3%	80.2%	85.4%	82.7%	82.5%	78.9%	82.0%	78.5%
2009	71.5%	75.7%	69.8%	71.6%	72.1%	82.1%	90.3%	80.5%	81.6%	80.0%	79.5%	78.1%
2010	65.9%	75.1%	64.2%	75.6%	71.5%	72.6%	80.8%	83.2%	83.2%	78.0%	78.1%	80.5%
2011	71.9%	63.0%	66.5%	69.2%	79.0%	82.3%	79.6%	87.2%	78.1%	78.4%	83.4%	79.7%
2012	78.5%	71.5%	64.4%	71.0%	74.8%	80.3%	79.9%	90.0%	88.5%	86.8%	80.7%	88.5%
2013	70.1%	71.7%	77.8%	74.7%	81.9%	75.4%	75.4%	83.1%	83.8%	82.6%	80.8%	76.6%
2014	77.6%	72.8%	64.2%	78.3%	83.0%	76.3%	80.0%	80.9%	79.5%	83.2%	75.7%	78.7%
2015	75.5%	67.9%	64.5%	69.1%	71.4%	79.7%	85.8%	87.2%	79.2%	73.6%	83.5%	77.8%
2016	74.3%	73.7%	67.6%	64.8%	75.2%	77.2%	82.3%	80.7%	80.4%	80.2%	83.3%	80.4%
2017	77.9%	69.9%	66.1%	75.9%	75.2%	80.2%	74.4%	82.7%	82.6%	81.3%	82.3%	82.7%
2018	77.6%	75.4%	74.0%	70.0%	67.2%	67.0%	79.2%	79.8%	78.8%	76.3%	78.6%	73.4%
2019	73.6%	63.8%	69.0%	67.9%	71.4%	75.5%	73.9%	80.3%	77.3%	77.8%	73.9%	72.0%
2020	70.6%	67.9%	66.2%	65.4%	61.2%	72.2%	83.3%	77.7%	79.0%	81.4%	82.0%	80.0%
2021	72.8%	67.7%	64.8%	74.7%	70.6%	76.8%	78.1%	80.7%	85.1%	83.9%	76.3%	74.0%
2022	69.6%	69.4%	69.2%	71.4%	67.7%	74.5%	76.6%	79.2%	81.5%	82.6%	77.4%	78.0%
2023	70.2%	65.5%	73.6%	72.3%	61.7%	79.6%	88.1%	84.5%	82.8%	82.5%	76.9%	72.0%
2024	69.6%	63.2%	74.0%	72.3%	79.3%	76.3%	76.4%	80.1%	82.4%	78.5%	80.1%	76.3%
2025	76.4%	M	M	M	M	M	M	M	M	M	M	M