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	0.00
2006	1.38	0.61	1.08	0.03	0.15	0.15	0.05	0.19	0.33	1.82	0.02	0.00
2007	0.00	0.03	0.60	0.34	2.56	3.15	1.68	1.93	1.51	0.57	1.57	0.63
2008	0.41	0.33	0.48	0.77	0.47	1.37	3.87	1.63	0.21	1.02	0.76	0.57
2009	0.25	0.11	0.38	0.18	0.64	1.38	3.89	2.30	0.43	3.20	0.02	0.18
2010	1.00	0.14	0.22	2.54	3.52	4.61	2.22	1.38	3.11	1.03	0.57	0.18
2011	0.24	0.32	0.11	0.44	0.30	3.85	2.41	1.26	0.35	0.92	0.24	0.30
2012	0.68	0.04	1.18	1.52	2.86	4.97	8.38	6.93	0.32	2.40	0.67	0.43
2013	0.69	0.29	0.03	0.20	0.21	3.54	5.18	0.81	0.76	0.71	1.31	0.32
2014	0.94	0.33	0.16	1.64	1.53	5.94	2.98	1.00	1.23	0.92	1.18	0.63
2015	0.57	0.42	0.38	1.50	0.52	5.24	3.70	2.43	3.12	1.07	0.87	0.25
2016	0.71	0.55	0.88	1.05	1.71	1.87	5.76	2.26	1.88	3.16	0.75	0.18
2017	0.91	0.34	1.16	1.13	3.22	3.45	1.30	0.16	1.01	1.19	0.56	0.29
2018	0.59	0.15	1.30	0.34	0.67	1.93	4.45	1.05	2.25	1.22	0.92	0.30
2019	0.78	0.38	0.03	0.55	1.14	3.15	4.41	2.91	1.64	0.62	0.45	0.20
2020	0.98	0.19	1.04	0.69	1.18	3.69	3.95	2.15	0.81	0.61	1.52	0.33
2021	0.48	0.24	0.68	0.59	1.22	1.66	0.05	1.87	0.45	0.65	0.79	1.08
2022	0.81	0.74	0.97	0.17	8.24	3.47	22.11	2.95	1.53	0.38	1.46	0.76
2023	0.45	0.31	0.35	0.27	1.39	1.34	1.93	2.91	0.42	0.99	0.59	0.42
2024	0.37	0.30	0.60	0.54	3.15	4.42	0.69	1.21	0.73	0.95	1.56	0.64
2025	0.60	0.26	0.18	0.04	0.14	3.23	0.26	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	10.0	9.3	9.3	9.4	9.0
2005	9.2	8.0	8.8	11.4	11.0	9.6	7.6	8.6	9.2	6.7	5.3	8.2
2006	8.3	8.8	7.8	8.1	9.7	8.2	7.4	8.6	9.4	10.1	10.0	9.3
2007	9.8	7.5	8.8	8.3	10.7	9.2	6.4	8.6	8.4	8.4	9.2	7.0
2008	8.2	7.7	7.1	9.5	9.3	7.8	7.4	8.7	8.6	9.4	7.5	7.3
2009	8.1	7.8	9.3	7.6	10.0	8.7	8.0	6.8	8.6	7.5	8.3	6.9
2010	7.6	5.2	7.9	9.8	11.3	8.3	6.8	7.7	9.2	9.6	7.1	7.0
2011	6.7	9.2	7.1	8.8	10.0	9.1	8.2	7.4	7.9	8.1	8.2	10.0
2012	8.6	7.4	9.0	9.3	11.6	9.7	6.9	7.4	9.9	9.3	7.7	6.5
2013	8.6	6.9	7.1	9.2	9.4	8.1	7.2	5.9	8.2	8.7	9.3	8.5
2014	10.5	8.5	8.0	9.3	9.6	8.9	7.1	6.8	8.3	9.4	9.9	6.7
2015	9.7	9.2	9.0	10.0	9.5	7.8	7.6	6.9	8.4	8.2	8.5	7.5
2016	7.3	6.9	7.9	9.1	10.4	8.9	6.7	7.3	7.8	8.8	7.8	8.5
2017	8.2	7.9	8.8	8.7	10.8	9.2	7.6	7.0	8.5	10.6	8.3	8.0
2018	7.6	8.1	8.7	9.6	9.6	9.3	8.3	8.6	8.7	8.3	8.5	7.5
2019	7.9	7.5	8.5	1.2	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	2.0	7.7	8.7	9.1	10.0	8.8	8.0
2021	7.8	8.3	9.5	10.0	9.9	9.2	7.9	7.5	9.4	8.2	8.9	8.6
2022	9.9	8.5	9.0	10.0	11.3	9.3	6.7	7.1	8.8	9.8	10.4	8.7
2023	6.3	8.1	7.0	9.0	8.9	8.0	7.6	7.7	7.9	7.9	9.2	7.7
2024	8.7	8.6	8.7	10.0	10.5	9.0	6.7	6.9	9.1	9.2	9.0	7.8
2025	10.5	8.2	7.9	9.1	10.9	9.8	7.0	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	55.31	53.45	40.79	26.34	2.62
2005	5.21	15.93	27.20	51.43	60.02	65.28	73.52	M	57.00	50.09	34.59	23.51
2006	27.96	13.75	26.06	53.83	61.77	72.39	76.29	75.14	62.67	42.94	21.22	20.24
2007	15.05	9.11	28.10	45.59	62.41	68.92	78.52	69.56	59.74	50.80	23.88	8.37
2008	7.99	7.11	24.19	41.90	61.90	71.93	73.30	76.23	63.65	52.37	28.20	-0.89
2009	6.19	12.37	20.97	45.16	58.16	69.02	69.65	70.34	73.14	39.72	39.00	5.05
2010	12.81	14.26	33.38	54.40	59.03	69.50	73.64	70.59	59.28	52.67	24.55	9.36
2011	6.13	12.56	19.46	44.46	63.13	69.71	72.65	75.39	68.92	50.15	27.80	24.43
2012	15.80	20.04	34.86	46.36	62.62	69.21	76.70	73.74	66.19	39.93	21.40	5.81
2013	7.16	15.02	20.02	34.60	65.72	68.43	70.54	74.03	69.19	45.73	22.35	-0.95
2014	10.28	3.41	19.70	37.69	60.89	65.94	73.30	73.86	62.61	50.08	19.09	18.14
2015	14.26	5.96	31.20	49.32	61.96	72.73	74.12	73.74	63.66	52.20	31.80	19.28
2016	14.40	19.95	30.94	46.42	66.61	72.33	72.85	70.98	63.03	39.16	39.96	10.73
2017	17.04	19.29	23.03	47.89	61.56	67.68	76.23	76.95	66.00	48.41	21.04	14.44
2018	7.48	8.60	25.17	38.01	69.01	73.09	72.95	71.11	51.72	42.04	19.96	17.52
2019	8.72	-2.76	28.30	46.86	60.16	70.09	72.19	69.68	60.71	42.57	25.06	13.69
2020	13.46	18.10	24.33	37.26	61.02	66.62	75.19	73.61	61.75	40.07	24.63	19.64
2021	17.61	4.37	32.65	47.50	61.84	75.40	80.38	73.14	69.42	52.33	30.49	5.71
2022	7.45	6.06	24.13	37.50	59.18	69.68	74.92	76.46	69.56	52.59	22.91	3.79
2023	14.44	14.97	19.33	42.31	70.27	77.06	73.34	73.85	71.50	46.53	32.77	29.25
2024	11.25	24.13	25.34	54.55	59.08	66.24	78.19	75.28	73.95	51.88	28.71	16.94
2025	14.24	7.08	26.02	46.49	70.48	69.67	74.03	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	51.36	52.00	37.14	20.23	-3.99
2005	-12.22	-2.49	9.21	31.07	36.37	48.25	50.13	M	41.70	27.52	17.39	5.82
2006	6.95	-3.84	7.15	30.18	39.08	52.17	53.13	50.70	41.33	26.38	5.31	0.83
2007	-2.72	-11.21	8.47	25.47	38.82	45.44	55.88	48.13	37.76	31.26	8.53	-7.56
2008	-10.99	-14.43	-0.43	21.87	33.95	46.50	52.15	51.03	38.79	31.80	14.19	-18.26
2009	-10.15	-5.68	-1.28	22.88	31.14	45.97	49.14	48.65	46.02	28.97	20.47	-9.84
2010	-4.36	-6.38	17.12	32.38	38.43	50.35	52.99	50.78	40.93	31.09	11.71	-4.97
2011	-9.53	-8.06	-4.73	25.69	36.29	48.93	53.68	51.73	42.69	31.95	12.06	7.79
2012	-1.48	-0.03	17.65	26.32	39.57	50.26	56.34	51.00	39.74	28.10	9.72	-9.63
2013	-9.35	-2.86	-2.36	17.04	39.45	49.50	50.71	50.95	42.86	28.53	5.94	-16.61
2014	-12.32	-15.71	-1.70	21.39	37.11	48.30	52.18	51.32	40.93	30.27	6.22	4.44
2015	-1.93	-14.61	14.63	27.28	35.34	48.87	54.11	50.81	41.53	33.77	19.36	6.70
2016	-2.06	-0.02	15.40	24.57	42.27	49.15	54.23	49.13	40.09	28.60	26.81	-4.73
2017	0.73	3.87	3.73	23.17	39.56	48.39	53.67	48.16	42.68	31.87	6.19	-2.52
2018	-7.73	-10.01	4.48	15.59	42.79	51.60	53.67	48.68	34.13	23.68	9.05	2.93
2019	-11.86	-21.94	9.93	27.84	34.53	48.48	52.35	48.46	42.30	24.94	13.01	-4.14
2020	-2.84	-4.81	2.75	16.95	36.54	48.17	55.70	50.63	39.97	26.31	7.71	4.29
2021	0.06	-14.41	13.05	25.90	34.76	52.47	55.46	51.70	42.89	30.60	14.18	-10.45
2022	-9.99	-17.62	4.15	22.64	38.70	49.06	53.38	53.80	43.51	30.78	8.02	-9.17
2023	0.90	-8.15	-4.75	22.19	43.42	53.90	49.75	52.72	44.45	29.58	20.56	12.63
2024	-0.64	8.09	6.32	31.08	40.98	45.60	56.74	50.03	45.41	30.89	16.05	0.44
2025	-6.11	-12.21	6.06	25.45	40.75	49.52	53.16	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	53.34	52.73	38.97	23.29	-0.69
2005	-3.50	6.72	18.21	41.25	48.20	56.76	61.83	M	49.35	38.80	25.99	14.66
2006	17.46	4.96	16.60	42.01	50.43	62.28	64.71	62.92	52.00	34.66	13.26	10.54
2007	6.16	-1.05	18.29	35.53	50.62	57.18	67.20	58.84	48.75	41.03	16.20	0.41
2008	-1.50	-3.66	11.88	31.88	47.92	59.22	62.73	63.63	51.22	42.09	21.20	-9.58
2009	-1.98	3.35	9.85	34.02	44.65	57.49	59.39	59.49	59.58	34.35	29.74	-2.39
2010	4.23	3.94	25.25	43.39	48.73	59.93	63.32	60.69	50.11	41.88	18.13	2.19
2011	-1.70	2.25	7.37	35.07	49.71	59.32	63.16	63.56	55.80	41.05	19.93	16.11
2012	7.16	10.00	26.25	36.34	51.09	59.74	66.52	62.37	52.97	34.01	15.56	-1.91
2013	-1.10	6.08	8.83	25.82	52.58	58.96	60.62	62.49	56.03	37.13	14.14	-8.78
2014	-1.02	-6.15	9.00	29.54	49.00	57.12	62.74	62.59	51.77	40.18	12.66	11.29
2015	6.17	-4.32	22.91	38.30	48.65	60.80	64.12	62.27	52.60	42.98	25.58	12.99
2016	6.17	9.96	23.17	35.49	54.44	60.74	63.54	60.06	51.56	33.88	33.39	3.00
2017	8.88	11.58	13.38	35.53	50.56	58.04	64.95	62.56	54.34	40.14	13.62	5.96
2018	-0.12	-0.70	14.83	26.80	55.90	62.34	63.31	59.90	42.93	32.86	14.51	10.22
2019	-1.57	-12.35	19.11	37.35	47.34	59.28	62.27	59.07	51.50	33.76	19.04	4.78
2020	5.31	6.64	13.54	27.11	48.78	57.40	65.45	62.12	50.86	33.19	16.17	11.96
2021	8.83	-5.02	22.85	36.70	48.30	63.94	67.92	62.42	56.15	41.46	22.33	-2.37
2022	-1.27	-5.78	14.14	30.07	48.94	59.37	64.15	65.13	56.53	41.69	15.47	-2.69
2023	7.67	3.41	7.29	32.25	56.84	65.48	61.55	63.28	57.98	38.06	26.66	20.94
2024	5.30	16.11	15.83	42.81	50.03	55.92	67.47	62.66	59.68	41.39	22.38	8.69
2025	4.07	-2.57	16.04	35.97	55.61	59.60	63.59	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	74.5%	79.9%	81.7%	78.0%	81.6%
2005	79.8%	79.5%	77.2%	67.7%	58.5%	76.5%	76.7%	76.6%	74.4%	79.9%	79.9%	87.4%
2006	88.9%	81.1%	82.3%	68.4%	67.9%	70.2%	73.9%	69.8%	73.5%	72.9%	82.3%	82.9%
2007	80.3%	77.9%	78.4%	65.2%	64.5%	66.1%	75.0%	73.5%	76.5%	75.7%	82.8%	84.7%
2008	80.5%	75.5%	77.4%	67.1%	49.0%	60.0%	74.9%	70.2%	67.0%	68.7%	85.8%	76.7%
2009	77.1%	78.7%	75.9%	67.4%	55.7%	65.7%	75.8%	77.4%	69.6%	88.7%	77.5%	79.4%
2010	84.1%	83.9%	82.2%	67.2%	66.1%	72.4%	77.6%	76.9%	74.2%	72.8%	84.7%	82.7%
2011	81.8%	76.6%	77.5%	72.4%	54.6%	69.4%	76.4%	70.9%	69.4%	75.2%	80.1%	80.5%
2012	79.9%	81.1%	78.4%	69.6%	56.7%	70.1%	76.2%	74.4%	65.4%	83.4%	83.9%	82.6%
2013	78.6%	81.2%	75.5%	72.8%	54.8%	70.9%	76.9%	74.0%	67.6%	74.3%	83.7%	74.8%
2014	76.0%	71.3%	72.6%	75.3%	54.7%	73.7%	74.3%	75.6%	69.3%	72.4%	79.0%	85.0%
2015	78.3%	71.5%	73.4%	59.2%	49.8%	64.3%	74.5%	71.9%	70.4%	75.7%	82.8%	83.5%
2016	80.0%	81.1%	79.0%	61.3%	58.9%	64.7%	78.2%	73.4%	70.7%	89.4%	82.5%	75.9%
2017	78.4%	74.5%	73.9%	64.2%	61.6%	68.7%	70.2%	61.6%	62.8%	71.7%	78.6%	76.5%
2018	77.8%	70.1%	77.8%	63.3%	49.7%	63.5%	73.3%	71.4%	73.5%	73.1%	82.4%	81.0%
2019	76.0%	70.0%	71.4%	62.6%	55.2%	64.1%	76.3%	74.3%	74.6%	74.6%	79.3%	79.3%
2020	79.9%	73.0%	72.6%	68.3%	54.9%	70.3%	75.5%	71.6%	67.5%	68.6%	81.4%	79.7%
2021	79.3%	69.3%	74.0%	55.7%	53.2%	61.4%	61.8%	67.0%	61.3%	66.9%	80.8%	76.0%
2022	76.0%	71.5%	73.9%	68.7%	60.3%	62.7%	67.5%	71.7%	62.6%	62.9%	80.9%	75.6%
2023	82.6%	71.8%	71.1%	65.7%	55.7%	63.5%	65.6%	71.3%	64.7%	74.8%	77.4%	77.3%
2024	75.5%	75.3%	65.7%	57.7%	65.8%	67.9%	72.7%	69.1%	65.8%	69.4%	83.0%	83.0%
2025	76.6%	74.0%	75.0%	64.5%	47.4%	65.2%	69.1%	M	M	M	M	M