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	0.02	0.18	1.14	2.39	1.28	0.16	2.64	2.79	1.87	1.32	0.24
2008	0.23	0.26	0.25	0.39	3.25	3.20	2.03	1.10	2.43	0.29	0.71	0.77
2009	0.19	0.42	0.24	0.53	0.59	1.94	2.73	2.23	1.16	2.59	0.37	0.36
2010	0.39	0.15	0.15	1.86	3.33	4.09	3.13	2.10	2.26	0.42	0.98	0.29
2011	0.49	0.57	0.78	1.78	3.29	3.99	1.58	0.82	0.39	2.99	0.35	0.58
2012	0.22	0.56	0.50	2.53	3.57	6.12	1.69	0.86	0.22	2.53	0.89	1.79
2013	0.60	0.57	1.28	1.25	2.14	4.38	1.42	1.22	2.32	1.50	2.31	4.00
2014	1.84	0.08	0.50	0.61	2.02	5.22	0.69	2.11	2.27	0.83	1.31	0.36
2015	0.66	0.28	0.67	0.45	0.77	1.06	1.88	0.82	1.86	0.44	0.52	0.45
2016	0.36	0.12	0.57	1.89	2.73	2.11	3.14	1.95	1.25	1.04	0.06	0.58
2017	0.18	0.55	0.48	0.88	1.98	2.05	0.30	0.48	0.13	1.31	0.45	0.76
2018	0.34	0.99	1.02	0.63	1.47	1.74	0.57	1.05	1.26	1.42	1.17	1.26
2019	1.17	1.82	0.85	0.46	1.72	1.24	1.06	0.87	2.56	1.73	3.07	1.57
2020	2.35	1.47	1.37	1.47	3.12	3.99	0.63	0.74	2.16	4.27	0.75	0.31
2021	0.08	0.57	0.17	0.53	1.88	0.46	0.41	1.68	0.41	0.81	0.18	0.45
2022	0.16	0.33	0.53	0.23	1.02	4.75	2.72	1.50	0.53	1.23	0.53	0.55
2023	0.20	0.54	0.23	0.02	0.68	0.92	0.02	0.53	1.55	1.12	0.28	0.29
2024	0.55	0.47	0.65	1.00	5.19	1.91	0.16	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	11.3	12.9	13.5
2005	11.9	12.0	13.2	12.6	12.2	10.9	8.8	9.6	10.4	11.7	13.4	12.1
2006	12.7	12.6	10.4	11.6	12.7	11.1	8.3	8.6	10.8	10.8	12.8	14.3
2007	14.7	11.4	14.7	12.2	12.1	11.4	8.5	9.5	11.2	13.6	13.6	12.0
2008	13.2	12.1	12.3	12.2	11.6	11.0	8.7	10.6	8.5	12.6	12.3	13.7
2009	16.3	9.1	13.9	13.1	12.7	9.7	8.7	8.6	11.9	11.3	15.1	10.2
2010	11.6	9.8	13.3	15.1	12.5	12.4	9.3	8.4	9.2	10.0	11.3	10.7
2011	16.1	14.3	11.1	13.2	11.8	12.3	9.8	8.1	11.9	11.8	14.3	15.5
2012	15.8	11.4	14.6	11.7	12.8	13.1	7.9	8.3	10.1	12.2	10.5	10.5
2013	14.0	12.9	10.6	13.3	11.5	9.7	8.1	8.0	11.5	11.6	11.8	14.0
2014	13.9	12.9	12.9	14.1	10.4	10.7	8.2	8.1	10.4	12.4	12.5	12.5
2015	14.5	11.1	13.4	12.4	9.7	8.4	9.3	9.5	10.4	12.0	12.8	11.1
2016	11.5	12.6	13.4	12.5	11.1	11.6	8.5	9.2	11.7	10.0	11.7	12.9
2017	12.3	11.5	12.5	11.8	12.7	12.0	9.3	8.8	10.3	15.7	13.4	12.6
2018	12.4	13.1	9.9	11.2	11.4	12.1	8.5	9.4	8.0	11.2	12.1	12.1
2019	12.4	8.7	9.8	12.5	9.9	10.6	7.4	7.1	11.9	14.3	12.7	13.2
2020	12.2	14.3	14.2	13.2	11.8	12.2	8.8	8.7	11.0	12.0	15.2	12.2
2021	12.5	12.9	13.0	11.7	11.4	11.3	8.3	9.9	12.3	12.6	15.1	12.1
2022	15.4	15.4	13.2	13.5	14.1	11.7	7.6	8.4	10.1	11.3	13.2	12.3
2023	12.2	14.1	10.6	10.5	9.6	9.5	8.9	9.6	9.9	10.7	12.8	12.5
2024	11.6	11.4	10.3	14.2	13.6	11.7	7.9	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	65.49	47.71	32.18	43.26	36.35
2005	26.65	42.70	45.01	55.48	63.94	65.54	76.64	74.05	65.87	57.47	45.89	31.99
2006	41.38	35.68	37.54	57.45	67.45	71.60	83.17	79.62	68.64	50.78	36.05	38.16
2007	35.15	30.27	50.86	48.71	63.83	72.11	85.45	78.89	65.95	58.10	42.98	30.58
2008	29.05	30.47	43.25	49.03	62.69	69.21	77.11	77.83	67.40	57.87	47.40	21.92
2009	29.28	30.55	38.26	52.16	64.62	69.68	76.15	75.96	77.64	45.15	48.09	16.65
2010	28.03	30.34	50.00	52.28	56.38	68.13	74.44	73.15	61.97	60.15	33.58	23.50
2011	22.80	23.54	32.67	47.23	59.19	66.66	76.79	78.73	74.99	56.52	41.03	37.75
2012	33.83	36.61	47.60	56.28	61.50	67.94	78.94	81.21	74.03	49.01	38.49	28.75
2013	31.52	40.46	40.25	49.38	66.19	68.86	75.47	79.91	71.76	53.23	37.05	24.53
2014	35.38	25.12	37.38	50.76	62.37	66.37	78.82	76.29	67.46	61.50	31.24	32.90
2015	33.23	35.83	50.46	56.89	62.05	75.76	78.60	79.85	67.27	60.59	40.14	31.25
2016	30.21	45.84	50.89	59.93	62.90	73.58	75.64	76.03	66.31	51.59	52.33	20.95
2017	25.25	30.70	41.16	53.07	68.41	71.97	86.00	80.48	68.94	51.86	35.96	28.54
2018	30.62	16.70	31.20	46.07	70.02	70.81	80.03	79.02	58.79	53.00	40.35	34.84
2019	37.55	5.41	36.28	54.99	60.47	72.02	78.81	77.49	64.78	45.78	36.31	32.05
2020	27.29	35.60	36.65	49.19	63.23	68.96	77.47	82.44	70.21	48.98	40.23	36.20
2021	36.32	18.88	50.05	54.81	60.85	78.84	86.38	78.26	73.41	58.39	48.08	22.85
2022	34.10	33.95	44.48	49.57	63.22	69.77	78.80	85.15	75.98	62.08	27.99	20.24
2023	34.43	33.75	30.22	52.86	71.84	74.42	83.22	80.64	70.22	52.64	46.84	44.10
2024	23.31	32.29	33.58	54.45	60.49	68.61	77.87	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	32.59	5.09	-1.07	14.12	15.15
2005	9.30	16.79	22.58	30.38	38.41	47.08	50.42	47.86	40.96	34.42	24.01	15.11
2006	23.95	12.01	19.23	34.03	42.16	50.25	53.17	49.42	43.37	29.45	16.87	19.05
2007	14.18	11.78	27.67	32.60	41.56	47.57	55.87	47.59	39.84	35.13	20.38	9.69
2008	7.12	11.28	22.90	25.74	40.89	45.43	50.21	49.66	41.56	32.29	28.39	2.81
2009	10.50	12.45	18.25	29.00	38.05	43.66	50.35	49.90	44.91	29.19	26.36	-0.42
2010	13.50	13.75	27.89	30.67	36.95	48.16	50.14	49.00	41.32	35.08	15.04	11.19
2011	7.76	4.47	17.03	30.07	39.35	48.69	51.25	51.74	46.92	35.53	21.21	21.12
2012	16.00	14.03	26.56	32.84	40.22	48.39	53.49	48.95	42.81	28.04	20.31	7.50
2013	14.00	20.83	18.32	25.91	41.73	48.51	52.43	53.11	47.93	32.44	18.69	4.18
2014	16.15	4.63	24.40	35.33	40.82	46.65	53.86	51.74	42.83	37.88	14.19	17.86
2015	16.53	15.03	28.25	31.65	38.26	48.78	51.44	50.52	41.63	35.82	21.34	15.72
2016	14.49	25.05	27.40	34.84	40.76	47.49	50.88	49.93	41.74	32.05	30.37	4.36
2017	9.36	14.02	20.52	32.21	41.51	48.07	51.05	49.13	41.22	32.17	18.49	10.11
2018	12.45	-2.67	15.00	26.31	45.88	48.80	49.83	49.53	38.94	31.08	22.12	17.78
2019	15.59	-13.27	13.34	31.39	38.31	46.41	48.75	50.46	43.53	24.81	18.97	16.83
2020	10.48	18.07	18.15	27.63	40.41	48.73	49.75	49.31	43.40	27.70	22.26	20.60
2021	17.98	-1.44	25.22	27.81	38.86	50.24	54.88	51.41	44.55	32.18	26.65	1.72
2022	14.17	14.02	21.87	27.39	39.11	47.12	52.90	54.08	47.23	36.61	11.10	2.70
2023	18.49	14.91	12.56	29.05	44.80	48.87	50.09	51.51	44.43	31.56	26.07	26.84
2024	5.79	12.26	16.46	32.28	39.25	45.10	53.26	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	49.04	26.40	15.56	28.69	25.75
2005	17.98	29.75	33.80	42.93	51.17	56.31	63.53	60.96	53.41	45.95	34.95	23.55
2006	32.66	23.85	28.39	45.74	54.80	60.93	68.17	64.52	56.01	40.11	26.46	28.61
2007	24.66	21.02	39.26	40.65	52.69	59.84	70.66	63.24	52.90	46.61	31.68	20.14
2008	18.08	20.88	33.07	37.39	51.79	57.32	63.66	63.74	54.48	45.08	37.89	12.37
2009	19.89	21.50	28.26	40.58	51.33	56.67	63.25	62.93	61.27	37.17	37.22	8.11
2010	20.77	22.04	38.95	41.48	46.66	58.14	62.29	61.08	51.65	47.62	24.31	17.34
2011	15.28	14.00	24.85	38.65	49.27	57.67	64.02	65.23	60.96	46.03	31.12	29.43
2012	24.92	25.32	37.08	44.56	50.86	58.17	66.21	65.08	58.42	38.52	29.40	18.13
2013	22.76	30.65	29.28	37.65	53.96	58.69	63.95	66.51	59.85	42.83	27.87	14.36
2014	25.77	14.87	30.89	43.05	51.60	56.51	66.34	64.01	55.14	49.69	22.72	25.38
2015	24.88	25.43	39.36	44.27	50.15	62.27	65.02	65.19	54.45	48.20	30.74	23.49
2016	22.35	35.44	39.14	47.39	51.83	60.53	63.26	62.98	54.03	41.82	41.35	12.66
2017	17.31	22.36	30.84	42.64	54.96	60.02	68.53	64.81	55.08	42.02	27.22	19.33
2018	21.53	7.01	23.10	36.19	57.95	59.81	64.93	64.27	48.87	42.04	31.23	26.31
2019	26.57	-3.93	24.81	43.19	49.39	59.21	63.78	63.97	54.16	35.29	27.64	24.44
2020	18.89	26.83	27.40	38.41	51.82	58.84	63.61	65.88	56.80	38.34	31.24	28.40
2021	27.15	8.72	37.63	41.31	49.85	64.54	70.63	64.84	58.98	45.29	37.36	12.28
2022	24.13	23.99	33.18	38.48	51.16	58.44	65.85	69.61	61.60	49.34	19.55	11.47
2023	26.46	24.33	21.39	40.96	58.32	61.64	66.65	66.08	57.33	42.10	36.46	35.47
2024	14.55	22.28	25.02	43.36	49.87	56.85	65.57	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	72.5%	72.0%	75.5%	66.5%	70.0%
2005	73.2%	58.7%	66.4%	56.4%	50.5%	75.3%	62.8%	62.4%	63.1%	66.9%	64.7%	71.8%
2006	73.5%	68.1%	77.4%	59.8%	51.5%	65.7%	57.4%	50.7%	57.3%	71.8%	68.0%	66.4%
2007	67.1%	77.0%	59.3%	63.9%	60.0%	59.4%	50.2%	52.7%	59.2%	56.5%	58.5%	73.4%
2008	71.8%	77.2%	60.5%	56.0%	61.6%	63.0%	62.5%	52.3%	62.6%	54.8%	63.9%	74.8%
2009	73.4%	77.2%	67.6%	56.3%	51.0%	53.8%	63.1%	61.0%	42.6%	73.7%	56.3%	79.2%
2010	80.7%	83.3%	61.4%	60.0%	65.1%	63.0%	66.4%	68.5%	73.6%	62.4%	71.5%	79.5%
2011	76.8%	73.2%	77.4%	64.7%	64.9%	66.9%	58.9%	56.7%	44.9%	61.2%	60.6%	67.2%
2012	60.8%	68.3%	63.9%	59.1%	56.8%	66.9%	69.5%	51.7%	45.9%	72.7%	78.4%	72.9%
2013	70.8%	67.5%	71.0%	63.6%	53.0%	69.8%	72.3%	61.5%	59.5%	66.3%	75.6%	77.4%
2014	74.4%	70.0%	76.3%	63.4%	60.8%	68.3%	64.5%	70.0%	63.5%	61.4%	80.6%	79.4%
2015	73.8%	77.0%	62.6%	53.2%	55.7%	61.1%	60.6%	50.3%	60.6%	60.0%	72.2%	77.3%
2016	77.6%	64.0%	57.3%	55.1%	60.5%	56.3%	68.6%	62.5%	59.8%	73.1%	64.9%	71.3%
2017	74.5%	74.3%	67.4%	64.9%	49.5%	58.9%	48.1%	46.6%	51.3%	64.0%	75.5%	68.2%
2018	77.7%	79.4%	85.1%	68.9%	57.4%	61.8%	57.6%	50.9%	73.1%	67.3%	77.0%	73.4%
2019	72.9%	78.3%	76.4%	54.7%	63.0%	60.2%	57.4%	58.5%	65.6%	69.4%	78.2%	80.7%
2020	74.1%	74.3%	73.5%	62.6%	57.2%	66.1%	65.9%	47.5%	56.6%	69.2%	71.9%	72.9%
2021	70.5%	71.6%	58.4%	54.7%	61.3%	51.8%	53.8%	56.3%	47.9%	53.7%	63.2%	73.9%
2022	65.1%	64.8%	65.0%	53.4%	48.0%	65.3%	70.3%	52.9%	51.9%	61.5%	78.0%	77.5%
2023	76.9%	69.3%	82.6%	60.9%	54.3%	61.5%	50.7%	51.8%	54.8%	68.8%	63.6%	65.6%
2024	73.3%	78.2%	74.8%	53.8%	63.7%	59.0%	68.4%	M	M	M	M	M
2025	M	M	M	M	M	M	M	M	M	M	M	M