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	0.01	0.02	0.11	1.15	1.32	2.55	1.23	0.92	1.56	0.29	0.30	0.28
2008	0.39	0.27	0.68	0.69	2.60	3.85	1.97	1.74	1.22	0.49	0.04	0.73
2009	0.12	0.31	0.31	0.13	1.71	3.46	2.91	2.20	0.91	1.59	0.49	0.43
2010	0.43	0.12	0.02	2.15	4.81	4.69	4.20	2.42	1.07	0.39	1.23	0.75
2011	1.68	1.50	1.13	0.45	1.79	2.54	2.78	1.45	0.77	1.48	0.37	0.84
2012	0.44	0.56	0.60	1.49	3.45	4.69	1.48	0.88	0.06	0.81	0.56	0.63
2013	0.45	0.21	0.30	0.89	0.84	3.17	2.22	1.05	2.93	0.32	0.68	0.86
2014	0.33	0.42	0.58	1.15	0.85	3.27	1.07	3.36	2.00	0.91	0.65	0.69
2015	0.54	0.64	0.68	0.27	0.68	2.73	3.15	1.71	1.92	1.20	0.68	0.43
2016	0.54	0.30	0.45	1.15	4.10	3.03	3.42	5.14	1.42	1.47	0.12	0.37
2017	0.34	0.87	0.45	2.04	1.44	2.46	0.51	0.92	0.36	1.82	0.44	0.37
2018	0.19	0.56	1.00	0.25	0.96	1.41	2.12	2.44	0.49	0.65	0.82	0.43
2019	0.59	0.91	0.50	1.36	0.19	2.89	0.48	1.99	1.94	0.78	0.84	0.82
2020	0.88	0.93	0.42	0.24	2.15	2.51	1.05	0.18	0.91	1.00	2.33	1.41
2021	1.44	1.69	0.97	1.27	2.48	1.47	0.26	1.19	0.47	0.97	1.54	2.37
2022	0.93	0.88	0.66	2.30	0.81	3.10	1.84	0.39	0.24	0.38	0.71	0.93
2023	0.19	0.20	0.17	0.07	1.01	1.13	0.79	1.02	1.16	0.45	0.30	0.08
2024	0.64	0.71	0.46	0.85	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	8.8	9.7	10.5	11.6	11.8
2005	10.7	10.7	11.7	12.4	12.1	10.6	9.2	9.1	9.7	9.8	11.4	11.1
2006	10.4	11.4	10.6	11.0	12.7	11.0	9.1	8.8	10.1	9.6	12.4	13.9
2007	14.5	9.7	11.9	11.7	12.1	10.9	8.9	9.8	10.9	12.1	13.2	10.8
2008	13.2	10.6	10.1	11.3	10.7	9.4	9.0	10.1	8.4	11.0	11.2	11.3
2009	15.2	9.4	10.9	10.7	11.6	9.4	8.0	8.5	11.0	10.3	13.6	9.2
2010	9.6	6.4	10.4	13.9	11.9	9.6	8.9	8.1	9.8	9.3	9.8	6.9
2011	12.4	14.2	10.5	10.6	11.5	11.0	9.8	8.6	10.4	11.0	12.5	13.6
2012	13.1	8.2	13.1	11.3	12.0	11.9	8.6	8.5	9.2	11.0	9.8	7.9
2013	11.6	11.5	9.0	11.3	10.8	10.6	8.7	8.2	9.9	9.7	9.1	11.8
2014	13.7	10.3	9.8	10.5	10.2	10.5	8.6	8.3	8.8	11.6	10.5	9.2
2015	11.5	9.6	10.9	12.0	10.0	8.2	9.1	9.3	9.5	10.4	12.2	10.3
2016	9.5	11.0	11.2	11.7	11.4	10.3	7.6	9.3	9.4	9.4	10.6	12.9
2017	11.6	10.1	11.3	10.9	11.4	11.4	8.7	7.8	8.2	14.5	11.6	11.9
2018	11.2	12.7	9.7	10.7	10.5	10.2	7.8	8.0	9.0	9.9	10.4	11.4
2019	10.4	8.5	10.7	12.0	9.8	10.8	9.8	8.9	10.5	12.4	10.9	11.2
2020	11.6	12.6	11.6	12.7	12.3	10.9	10.0	9.2	10.8	10.4	15.1	13.2
2021	12.9	11.7	11.5	11.0	11.6	10.6	8.2	8.8	11.8	12.0	12.9	11.4
2022	13.4	12.7	13.0	13.4	12.0	12.0	7.9	8.9	9.4	11.0	13.9	11.9
2023	10.2	11.8	9.5	10.5	9.2	9.6	9.2	9.4	9.6	10.5	10.7	11.2
2024	9.7	10.1	10.2	12.8	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	66.15	58.42	44.72	33.38	23.34
2005	20.57	37.89	42.99	56.30	63.81	66.58	78.34	M	57.40	57.08	41.96	27.93
2006	35.95	23.92	30.65	47.39	57.16	65.32	71.53	73.32	53.80	35.28	23.66	28.00
2007	30.72	22.82	45.73	50.68	64.91	72.40	86.52	78.68	65.96	57.26	39.35	21.88
2008	24.22	25.25	40.83	48.06	63.48	68.63	77.68	79.59	67.63	57.95	45.63	16.23
2009	21.15	25.10	33.76	53.07	64.20	68.58	75.62	75.85	77.94	44.60	45.26	11.75
2010	24.05	23.96	48.82	54.42	56.95	68.39	74.82	74.17	63.07	59.84	33.17	21.16
2011	18.02	18.21	27.91	48.34	60.72	68.94	78.60	79.70	75.36	57.65	39.52	32.87
2012	31.10	34.75	44.84	54.63	61.85	70.46	80.13	81.46	73.50	47.85	34.80	23.22
2013	25.30	33.48	34.92	47.17	68.22	71.13	76.63	81.50	73.06	53.24	33.59	17.96
2014	27.43	17.50	30.79	52.93	63.24	66.36	79.68	77.33	67.27	59.89	29.59	30.47
2015	28.46	28.55	48.60	57.56	65.10	75.33	79.96	79.35	66.33	59.91	39.70	28.90
2016	27.01	39.30	48.64	59.00	64.13	72.51	75.81	74.42	65.62	48.64	49.46	18.69
2017	22.53	28.38	39.09	52.53	68.06	72.37	84.40	79.56	69.18	51.40	32.44	24.32
2018	26.03	12.47	32.55	48.55	71.58	73.84	79.47	79.42	58.74	52.05	36.12	30.97
2019	31.76	1.84	35.17	54.48	61.89	73.17	79.51	75.38	63.99	47.20	33.96	28.12
2020	22.92	29.36	33.71	47.98	63.42	70.96	78.20	82.14	68.82	46.15	37.09	30.26
2021	28.91	12.66	45.92	54.50	60.92	78.75	86.15	77.37	72.48	58.62	44.83	17.54
2022	24.41	26.93	40.24	46.23	63.14	69.18	81.18	86.07	75.13	59.80	24.12	15.33
2023	26.75	27.01	27.70	49.50	72.32	76.87	82.03	80.27	71.90	51.43	42.68	41.87
2024	16.24	30.01	30.39	55.77	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	58.46	55.71	39.59	26.08	17.81
2005	1.67	14.81	22.64	32.06	38.20	48.66	51.83	M	48.60	32.06	22.39	13.49
2006	20.49	14.87	22.74	43.54	52.99	59.27	62.77	64.12	50.21	35.00	20.26	23.65
2007	11.91	3.30	23.19	30.21	41.38	48.38	58.06	49.91	40.35	33.27	18.71	5.75
2008	2.91	4.43	19.92	25.00	41.16	45.98	50.37	49.28	41.63	30.22	23.29	-2.31
2009	2.93	7.47	12.15	28.15	37.23	44.82	49.54	49.67	46.40	27.66	24.56	-5.79
2010	8.68	5.50	26.37	30.34	36.92	47.97	51.17	50.29	41.15	33.38	13.22	2.55
2011	3.12	-0.02	11.31	28.37	39.20	47.75	51.68	51.53	45.32	34.33	19.70	14.30
2012	12.53	10.34	24.72	31.69	39.36	48.48	54.92	50.67	42.98	28.03	16.76	3.23
2013	8.09	15.84	13.65	25.29	41.12	49.22	51.94	53.10	47.49	29.76	12.45	-2.91
2014	8.01	-3.36	13.52	29.56	40.02	46.00	51.32	52.51	41.53	35.70	12.75	12.33
2015	10.64	6.63	24.80	30.40	37.08	49.75	52.24	51.21	42.91	34.31	22.04	13.44
2016	10.74	21.51	27.21	32.61	42.14	48.37	52.04	50.54	41.76	30.26	28.36	4.41
2017	8.10	11.97	18.49	30.52	41.59	48.01	52.45	49.96	41.38	30.43	13.06	7.84
2018	6.35	-6.17	15.52	25.05	44.10	48.18	50.88	49.98	38.31	28.73	18.58	15.96
2019	11.29	-16.25	13.07	30.13	37.42	47.50	50.90	50.88	44.26	25.13	18.60	12.83
2020	8.46	11.25	15.87	27.03	38.38	49.35	50.68	51.16	42.72	27.28	17.41	15.89
2021	15.09	-4.20	24.91	28.06	37.79	51.82	56.07	52.52	45.34	32.48	22.52	-2.04
2022	6.70	9.64	17.60	26.78	39.69	48.46	53.36	53.07	45.85	35.79	10.85	-5.17
2023	12.90	10.96	10.02	28.40	45.48	50.71	53.87	53.77	45.92	29.88	23.16	23.37
2024	0.67	12.52	15.05	33.20	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	62.30	57.06	42.15	29.73	20.58
2005	11.12	26.35	32.82	44.18	51.00	57.62	65.09	M	53.00	44.57	32.18	20.71
2006	28.22	19.39	26.69	45.47	55.08	62.30	67.15	68.72	52.01	35.14	21.96	25.82
2007	21.31	13.06	34.46	40.45	53.15	60.39	72.29	64.29	53.15	45.27	29.03	13.82
2008	13.56	14.84	30.37	36.53	52.32	57.31	64.03	64.44	54.63	44.08	34.46	6.96
2009	12.04	16.28	22.96	40.61	50.71	56.70	62.58	62.76	62.17	36.13	34.91	2.98
2010	16.36	14.73	37.60	42.38	46.94	58.18	62.99	62.23	52.11	46.61	23.19	11.85
2011	10.57	9.09	19.61	38.36	49.96	58.35	65.14	65.61	60.34	45.99	29.61	23.58
2012	21.81	22.54	34.78	43.16	50.61	59.47	67.52	66.06	58.24	37.94	25.78	13.23
2013	16.69	24.66	24.28	36.23	54.67	60.17	64.29	67.30	60.28	41.50	23.02	7.53
2014	17.72	7.07	22.16	41.24	51.63	56.18	65.50	64.92	54.40	47.80	21.17	21.40
2015	19.55	17.59	36.70	43.98	51.09	62.54	66.10	65.28	54.62	47.11	30.87	21.17
2016	18.87	30.40	37.92	45.81	53.14	60.44	63.93	62.48	53.69	39.45	38.91	11.55
2017	15.32	20.18	28.79	41.53	54.83	60.19	68.42	64.76	55.28	40.92	22.75	16.08
2018	16.19	3.15	24.03	36.80	57.84	61.01	65.18	64.70	48.53	40.39	27.35	23.47
2019	21.52	-7.21	24.12	42.31	49.65	60.33	65.21	63.13	54.13	36.17	26.28	20.47
2020	15.69	20.30	24.79	37.51	50.90	60.16	64.44	66.65	55.77	36.72	27.25	23.08
2021	22.00	4.23	35.41	41.28	49.36	65.28	71.11	64.94	58.91	45.55	33.67	7.75
2022	15.56	18.29	28.92	36.51	51.41	58.82	67.27	69.57	60.49	47.79	17.49	5.08
2023	19.83	18.99	18.86	38.95	58.90	63.79	67.95	67.02	58.91	40.66	32.92	32.62
2024	8.46	21.27	22.72	44.48	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	79.3%	74.0%	77.1%	69.6%	77.4%
2005	79.8%	67.9%	71.7%	56.7%	51.0%	76.1%	61.1%	60.7%	64.0%	68.8%	73.9%	78.6%
2006	80.6%	74.2%	78.8%	56.8%	60.5%	64.8%	49.1%	47.8%	62.3%	69.8%	73.4%	72.8%
2007	71.7%	80.4%	70.3%	66.8%	60.2%	64.9%	50.5%	52.4%	59.5%	61.0%	64.0%	77.8%
2008	74.6%	79.5%	71.5%	62.1%	59.2%	67.3%	60.6%	53.1%	61.9%	54.3%	65.4%	76.0%
2009	74.1%	77.6%	72.7%	53.8%	51.4%	59.6%	62.7%	60.9%	46.0%	74.4%	62.9%	77.1%
2010	79.9%	81.8%	66.0%	57.6%	64.7%	67.5%	68.0%	66.8%	68.7%	64.3%	71.6%	79.9%
2011	79.0%	76.8%	79.0%	64.9%	64.6%	68.8%	63.1%	56.4%	46.2%	59.0%	63.6%	78.6%
2012	70.6%	73.5%	71.9%	63.9%	60.5%	68.4%	67.0%	53.3%	47.6%	74.9%	82.6%	82.7%
2013	78.8%	81.2%	78.2%	64.8%	48.9%	64.6%	64.1%	56.1%	57.1%	66.2%	80.3%	79.4%
2014	79.2%	75.4%	74.5%	63.6%	53.9%	68.9%	62.8%	65.9%	65.5%	61.7%	81.6%	81.6%
2015	79.5%	79.4%	69.2%	51.9%	44.1%	59.9%	60.3%	54.7%	66.0%	67.1%	77.7%	83.2%
2016	84.7%	79.4%	69.0%	54.6%	62.5%	66.2%	75.4%	71.2%	67.4%	81.9%	73.4%	78.1%
2017	79.4%	81.3%	72.9%	70.4%	55.0%	62.8%	55.4%	49.9%	52.9%	66.5%	80.9%	73.6%
2018	80.7%	79.9%	86.3%	64.2%	50.2%	58.3%	61.1%	52.9%	72.8%	68.6%	82.9%	81.6%
2019	81.8%	78.7%	78.8%	55.2%	55.2%	62.1%	62.5%	63.5%	73.9%	72.4%	86.0%	89.7%
2020	83.1%	87.1%	85.1%	62.3%	61.8%	66.2%	69.1%	46.7%	59.8%	73.6%	83.1%	86.7%
2021	86.0%	80.8%	73.0%	54.8%	66.9%	57.4%	55.3%	58.4%	49.5%	56.5%	75.0%	81.8%
2022	82.4%	81.6%	73.4%	60.6%	51.5%	66.5%	64.7%	46.5%	49.3%	58.5%	80.1%	78.6%
2023	83.2%	75.9%	81.4%	64.3%	55.8%	58.8%	51.0%	54.4%	52.1%	70.2%	72.4%	70.2%
2024	80.1%	82.5%	77.9%	59.1%	M	M	M	M	M	M	M	M
2025	M	M	M	M	M	M	M	M	M	M	M	M