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	0.11	0.13	1.45	3.34	2.00	2.12	3.75	3.04	2.92	3.46	4.50	5.96
2008	6.35	2.62	3.12	3.19	4.77	4.42	4.12	4.01	3.80	2.59	4.71	10.22
2009	2.29	3.39	2.04	4.93	3.39	3.32	2.92	3.68	4.90	5.29	3.49	6.25
2010	1.63	1.09	0.11	1.70	2.18	5.22	2.89	3.30	4.80	2.66	2.65	2.65
2011	2.38	1.34	2.80	4.10	4.85	2.70	1.63	2.48	0.92	6.77	3.00	2.62
2012	1.92	1.03	1.65	2.34	1.19	3.04	0.36	3.39	5.14	5.30	2.01	2.41
2013	4.97	2.27	1.81	4.84	3.21	3.88	2.94	4.03	3.14	7.99	4.39	4.11
2014	3.35	1.31	2.42	3.79	3.44	4.18	3.00	2.39	4.39	7.49	5.93	2.19
2015	2.90	1.68	2.00	3.14	2.22	2.37	1.20	2.42	0.87	2.45	5.26	4.76
2016	4.04	4.32	5.85	2.37	1.90	1.04	2.53	3.68	1.96	2.30	1.99	5.26
2017	3.84	4.95	2.55	5.73	3.94	5.89	4.16	1.32	M	0.74	0.59	M
2018	M	M	0.25	3.52	1.51	1.51	1.58	6.49	4.59	3.36	4.38	3.79
2019	2.77	3.53	2.81	5.12	M	M	M	M	M	M	M	M
2020	M	M	M	0.63	1.08	2.17	3.21	5.93	3.45	3.77	2.95	4.26
2021	1.37	2.77	1.79	2.12	1.15	4.64	4.44	2.19	6.87	3.70	3.58	3.22
2022	1.74	2.39	2.81	3.84	2.45	3.52	1.29	3.18	4.66	4.24	1.98	5.55
2023	3.78	2.35	2.56	5.97	1.72	2.96	3.22	5.33	1.60	5.10	2.50	2.47
2024	4.26	2.22	3.18	6.81	2.85	5.83	2.65	3.86	2.98	1.59	4.60	5.38
2025	3.79	2.63	5.08	2.97	4.04	2.86	2.92	2.21	1.26	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	4.7	5.9	7.2	7.4	6.0
2005	4.8	0.0	0.0	0.0	0.0	4.1	5.5	8.7	0.0	0.0	0.0	0.0
2006	0.0	0.0	1.7	6.0	5.7	5.6	6.2	6.3	5.8	8.1	9.3	8.1
2007	7.3	7.1	6.6	6.6	5.2	5.4	6.0	5.3	5.5	6.6	8.5	7.2
2008	17.7	17.7	6.6	6.0	7.2	6.3	7.0	5.2	5.2	7.0	5.9	11.4
2009	5.0	6.2	6.2	6.9	7.4	5.0	7.4	5.9	4.9	6.5	5.6	9.2
2010	3.3	3.3	4.8	6.3	5.4	5.9	6.1	5.7	7.2	6.7	7.3	7.0
2011	3.6	4.5	0.0	4.3	4.3	5.2	4.9	4.8	4.7	0.0	0.0	0.0
2012	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2013	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2014	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2015	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2016	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2017	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2018	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2019	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2020	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2021	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2022	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2023	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2024	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2025	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	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	68.22	66.88	52.07	38.62	20.80
2005	30.54	M	M	M	M	75.28	79.93	M	57.00	57.64	44.78	29.21
2006	33.35	18.48	28.94	43.16	59.51	68.56	72.22	72.22	57.57	53.05	37.91	34.21
2007	27.49	22.04	37.45	47.93	64.66	75.52	74.92	76.47	70.30	60.90	40.69	29.15
2008	30.70	25.48	31.61	54.22	57.34	70.92	75.00	75.26	68.26	54.13	40.84	29.17
2009	19.84	29.11	37.85	50.76	60.57	68.80	70.52	73.36	68.88	51.37	47.92	29.43
2010	25.61	27.09	46.12	57.28	67.23	68.91	77.58	76.25	65.22	55.95	45.50	26.90
2011	21.03	27.68	34.61	48.23	65.29	70.40	79.53	76.77	69.19	57.75	47.48	34.73
2012	29.70	32.87	45.24	48.27	67.88	72.87	80.18	75.53	67.32	55.36	41.20	33.43
2013	29.92	25.93	35.00	47.79	65.57	70.01	75.96	74.12	66.42	56.97	39.68	23.64
2014	20.32	20.38	28.54	46.03	60.68	73.17	70.77	72.98	66.11	54.50	37.86	32.23
2015	22.99	13.36	31.35	48.24	65.36	69.41	75.53	73.20	72.93	54.36	48.47	41.20
2016	28.49	28.52	38.63	44.94	63.30	71.70	77.27	78.71	70.72	57.28	48.01	33.33
2017	31.17	33.19	32.62	51.52	59.05	68.08	73.34	72.43	69.88	60.91	41.19	24.08
2018	20.90	M	M	44.45	66.93	72.47	79.22	77.31	69.25	51.02	36.42	32.30
2019	21.85	27.08	32.26	46.74	57.01	68.06	78.14	74.53	67.74	55.97	36.61	32.93
2020	30.51	28.50	40.62	46.68	60.20	72.57	79.69	74.16	64.83	51.49	47.77	33.59
2021	28.73	26.61	42.35	51.26	61.44	72.67	74.05	78.21	67.42	60.98	42.71	35.57
2022	21.48	26.57	35.53	47.00	66.99	70.53	74.97	76.32	68.66	57.47	46.03	34.65
2023	31.71	31.33	37.08	50.67	62.72	74.27	76.25	72.39	71.19	56.91	43.05	37.65
2024	29.82	35.57	42.03	51.46	66.88	71.63	76.84	75.71	72.96	59.05	46.56	32.91
2025	24.00	24.87	40.29	48.22	62.80	72.19	78.32	75.84	69.96	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	64.69	64.16	49.09	34.50	16.17
2005	16.00	M	M	M	M	56.75	62.79	M	55.60	44.31	30.09	16.17
2006	20.57	11.35	21.34	40.03	55.93	62.00	68.64	67.62	54.66	52.45	36.48	30.85
2007	12.67	3.06	19.45	32.24	44.43	56.02	58.19	59.45	53.76	46.57	28.04	16.40
2008	17.18	8.95	15.81	35.61	41.34	56.87	61.46	57.25	50.98	39.09	29.06	14.13
2009	-0.17	10.87	19.79	33.41	41.11	52.19	57.69	58.49	50.61	38.85	34.10	15.93
2010	10.89	11.14	27.11	37.87	48.47	55.28	63.39	62.06	51.37	40.05	30.32	16.20
2011	4.17	9.49	18.82	31.06	47.60	54.34	63.17	61.41	51.94	42.86	34.97	22.78
2012	14.84	20.10	29.35	32.23	47.59	57.19	62.20	60.20	50.94	42.33	28.53	21.21
2013	12.97	10.65	21.65	32.37	46.93	54.88	61.08	59.00	49.77	42.70	26.51	11.55
2014	3.29	4.10	8.69	30.42	43.42	55.94	58.09	57.15	51.36	42.82	27.21	21.53
2015	1.72	-8.61	14.97	31.30	45.78	53.20	58.72	60.55	56.67	39.15	35.14	31.70
2016	12.95	11.60	24.21	27.97	44.65	54.11	61.75	62.89	55.21	43.66	34.12	18.84
2017	19.19	16.49	17.95	35.60	43.95	55.00	60.49	57.96	53.78	46.45	27.73	9.47
2018	-0.71	M	M	29.37	46.37	53.92	63.20	63.25	54.36	39.61	25.12	19.63
2019	3.99	9.63	16.10	31.78	41.46	51.55	62.38	58.47	52.31	42.45	24.77	20.60
2020	16.70	13.56	24.93	31.38	43.65	54.08	64.88	59.56	50.99	38.21	34.58	22.26
2021	16.44	8.48	22.93	36.96	43.21	58.29	59.44	64.12	52.41	49.27	30.87	22.04
2022	-0.17	7.12	19.73	32.43	48.53	54.10	60.60	60.39	52.72	40.80	33.55	24.22
2023	20.14	13.83	23.30	34.82	42.70	56.69	61.39	58.16	53.59	45.27	29.18	28.46
2024	20.13	20.00	27.66	36.12	48.43	57.19	61.56	59.82	55.23	42.43	34.43	22.08
2025	9.01	9.10	22.66	30.55	45.16	55.84	62.11	60.16	52.21	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	66.45	65.52	50.58	36.56	18.49
2005	23.27	M	M	M	M	66.01	71.36	M	56.30	50.98	37.44	22.69
2006	26.96	14.92	25.14	41.59	57.72	65.28	70.43	69.92	56.11	52.75	37.19	32.53
2007	20.08	12.55	28.45	40.09	54.54	65.77	66.56	67.96	62.03	53.73	34.37	22.77
2008	23.94	17.21	23.71	44.91	49.34	63.90	68.23	66.25	59.62	46.61	34.95	21.65
2009	9.83	19.99	28.82	42.08	50.84	60.50	64.10	65.93	59.75	45.11	41.01	22.68
2010	18.25	19.11	36.62	47.58	57.85	62.09	70.48	69.15	58.30	48.00	37.91	21.55
2011	12.60	18.59	26.72	39.65	56.44	62.37	71.35	69.09	60.56	50.30	41.22	28.75
2012	22.27	26.48	36.37	40.25	57.74	65.03	71.19	67.86	59.13	48.84	34.86	27.32
2013	21.44	18.29	28.32	40.08	56.25	62.44	68.52	66.56	58.09	49.83	33.09	17.59
2014	11.80	12.24	18.61	38.23	52.05	64.55	64.43	65.06	58.73	48.66	32.53	26.88
2015	12.35	2.37	23.16	39.77	55.57	61.30	67.12	66.87	64.80	46.75	41.80	36.45
2016	20.72	20.06	31.42	36.45	53.97	62.91	69.51	70.80	62.96	50.47	41.07	26.09
2017	25.18	24.84	25.28	43.56	51.50	61.54	66.91	65.20	61.83	53.68	34.46	16.78
2018	10.10	M	M	36.91	56.65	63.19	71.21	70.28	61.81	45.32	30.77	25.96
2019	12.92	18.36	24.18	39.26	49.24	59.81	70.26	66.50	60.03	49.21	30.69	26.76
2020	23.60	21.03	32.77	39.03	51.93	63.33	72.29	66.86	57.91	44.85	41.18	27.92
2021	22.59	17.54	32.64	44.11	52.32	65.48	66.75	71.16	59.91	55.13	36.79	28.81
2022	10.65	16.84	27.63	39.71	57.76	62.32	67.79	68.35	60.69	49.13	39.79	29.43
2023	25.92	22.58	30.19	42.74	52.71	65.48	68.82	65.28	62.39	51.09	36.12	33.06
2024	24.98	27.79	34.85	43.79	57.65	64.41	69.20	67.76	64.09	50.74	40.49	27.50
2025	16.51	16.99	31.48	39.39	53.98	64.01	70.21	68.00	61.08	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	82.4%	83.8%	86.3%	83.9%	84.4%
2005	78.8%	78.6%	76.2%	69.1%	71.1%	81.6%	76.2%	76.1%	76.4%	82.5%	85.1%	87.7%
2006	89.3%	85.3%	77.2%	72.6%	76.5%	77.3%	84.0%	78.5%	84.8%	84.4%	88.7%	86.6%
2007	83.0%	76.4%	72.6%	79.2%	69.4%	77.5%	81.8%	79.4%	82.4%	88.0%	85.1%	89.1%
2008	89.3%	86.0%	77.2%	73.3%	79.7%	87.4%	84.2%	85.0%	86.9%	74.8%	79.7%	82.0%
2009	78.7%	76.2%	69.0%	66.0%	67.6%	76.6%	76.5%	76.1%	76.3%	78.9%	78.4%	83.2%
2010	78.9%	79.8%	61.1%	62.1%	69.3%	78.8%	74.9%	77.4%	82.7%	74.8%	75.3%	82.2%
2011	79.6%	73.1%	68.6%	72.6%	70.6%	75.8%	71.1%	72.6%	76.3%	78.6%	77.0%	82.7%
2012	81.4%	78.3%	71.3%	68.8%	66.2%	72.3%	65.9%	73.1%	75.9%	78.4%	77.6%	82.5%
2013	80.1%	81.6%	75.5%	70.6%	65.7%	73.0%	73.3%	74.7%	77.6%	78.1%	73.8%	81.9%
2014	78.5%	77.6%	71.0%	70.5%	72.7%	70.1%	74.9%	77.3%	78.7%	81.0%	82.4%	79.4%
2015	77.6%	71.7%	71.7%	68.5%	71.4%	73.6%	71.3%	76.4%	73.2%	72.6%	78.6%	81.7%
2016	81.3%	76.0%	74.2%	64.5%	64.5%	65.0%	70.3%	73.3%	74.4%	73.9%	79.1%	79.0%
2017	83.1%	79.3%	65.4%	71.0%	70.9%	75.2%	75.9%	75.6%	78.8%	74.5%	76.1%	76.9%
2018	76.9%	M	M	68.9%	63.6%	66.3%	65.4%	75.7%	77.1%	76.2%	79.8%	82.0%
2019	74.0%	78.5%	73.6%	72.8%	74.3%	71.4%	70.1%	68.2%	76.2%	74.6%	78.8%	78.8%
2020	79.3%	74.7%	70.4%	67.8%	62.5%	69.4%	71.5%	76.5%	75.8%	75.6%	74.5%	78.5%
2021	79.3%	76.1%	62.2%	67.4%	65.3%	71.1%	76.1%	75.0%	76.7%	80.6%	77.8%	78.0%
2022	74.1%	73.5%	76.6%	71.1%	63.1%	70.3%	70.2%	73.8%	75.7%	74.9%	71.5%	82.0%
2023	79.4%	75.4%	70.3%	72.1%	62.7%	67.4%	74.1%	74.0%	75.7%	80.5%	73.8%	80.1%
2024	83.9%	75.0%	70.3%	71.7%	70.0%	74.0%	74.3%	74.2%	77.4%	73.9%	77.9%	82.0%
2025	76.1%	74.3%	72.1%	67.6%	68.0%	71.3%	73.9%	69.5%	74.2%	M	M	M