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	0.00	0.15	1.42	1.29	3.49	2.22	4.66	2.95	1.21	0.37	0.66
2008	0.35	0.34	0.20	0.86	1.33	2.49	1.59	3.86	0.85	0.05	0.42	0.55
2009	0.53	0.23	0.69	1.08	0.43	1.44	2.47	1.14	0.24	0.88	0.05	0.53
2010	0.12	0.10	0.29	1.65	2.87	2.47	4.62	2.05	1.43	0.73	0.35	0.44
2011	0.84	0.38	0.24	0.33	0.27	5.51	4.01	1.81	0.10	0.29	0.51	0.35
2012	0.71	0.40	0.91	1.70	4.03	3.07	4.57	3.62	0.63	0.74	0.86	0.52
2013	0.62	0.43	0.55	1.13	0.30	2.91	2.86	2.61	0.09	0.72	0.84	1.00
2014	0.22	0.31	0.27	2.44	2.46	4.06	3.86	0.63	1.18	0.28	1.35	0.16
2015	0.50	0.66	1.02	0.57	0.38	1.26	2.71	1.10	2.58	0.70	0.51	0.06
2016	0.79	0.27	0.73	1.00	3.22	1.73	3.48	1.85	1.03	1.79	0.36	0.53
2017	0.51	0.44	1.15	2.80	2.53	3.21	2.61	1.13	0.88	1.50	0.96	0.15
2018	0.50	0.41	0.48	0.71	0.60	1.96	2.67	1.34	2.33	0.97	0.79	0.62
2019	0.93	1.58	0.35	0.18	0.18	4.32	4.38	1.15	1.31	0.90	0.59	0.35
2020	0.43	0.52	0.64	0.12	1.86	4.89	2.26	2.37	1.94	0.26	0.68	0.08
2021	0.22	0.42	0.29	0.27	2.11	2.04	0.63	1.98	0.20	0.26	0.45	0.89
2022	0.86	0.50	0.68	0.41	2.12	4.92	1.31	2.00	0.23	0.08	0.68	0.69
2023	0.30	0.23	0.21	0.69	1.40	1.70	2.20	2.49	0.43	0.18	0.06	0.21
2024	0.34	0.56	0.32	1.01	2.59	2.28	1.96	1.82	2.66	0.34	0.79	0.46
2025	M	M	M	M	M	M	M	M	M	M	M	M
2026	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	8.5	9.9	9.6	10.5	11.5
2005	9.6	9.2	11.1	13.5	11.9	9.9	9.4	10.3	9.0	10.3	10.2	8.6
2006	8.2	11.5	11.6	11.2	11.5	10.5	9.2	8.9	9.9	9.5	11.0	11.7
2007	12.6	8.5	11.4	11.6	11.8	10.5	8.4	9.6	9.8	11.0	12.1	8.2
2008	9.7	9.8	9.4	11.6	12.2	8.8	9.6	10.1	9.2	12.0	10.7	11.1
2009	10.9	8.7	10.3	9.5	10.9	9.1	8.6	8.4	11.7	9.5	10.5	8.7
2010	8.4	8.1	10.3	14.0	10.5	9.3	8.0	8.5	9.6	10.3	8.9	9.4
2011	10.2	11.4	10.5	9.7	12.1	10.4	9.7	4.7	0.0	0.0	0.0	0.0
2012	0.0	0.9	10.3	11.8	10.8	10.1	9.0	8.4	10.8	10.7	9.5	8.4
2013	9.9	10.4	9.7	11.1	10.9	10.2	8.3	7.5	9.2	9.7	9.7	10.4
2014	12.8	8.9	9.2	10.4	9.9	9.2	8.5	7.4	8.8	10.8	9.5	6.5
2015	10.4	10.5	10.3	11.8	10.2	9.1	9.5	7.8	9.3	10.3	9.8	8.0
2016	8.3	10.5	10.0	12.1	9.8	10.2	7.5	8.8	9.9	9.4	9.1	11.0
2017	8.5	9.0	10.3	9.9	11.5	10.9	8.5	8.6	8.9	12.3	9.9	10.9
2018	9.8	10.7	10.2	10.3	10.6	10.5	8.7	8.7	9.0	9.5	9.4	10.0
2019	11.1	8.5	9.5	11.5	10.3	10.1	9.0	9.1	9.1	10.8	9.4	8.7
2020	9.9	10.7	10.9	12.0	11.7	10.3	9.5	10.6	11.0	10.8	10.3	9.6
2021	11.4	10.9	10.6	10.2	11.7	10.9	9.4	9.9	10.9	10.8	10.3	9.7
2022	11.3	11.4	11.9	13.4	11.7	10.0	8.4	8.5	10.3	10.0	11.4	9.1
2023	8.3	9.8	9.0	11.4	11.0	9.2	8.2	9.0	9.1	11.1	10.0	9.1
2024	7.9	8.9	10.8	11.7	11.1	11.9	9.2	9.0	9.3	10.2	7.7	10.8
2025	M	M	M	M	M	M	M	M	M	M	M	M
2026	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	55.60	42.16	26.69	36.04	22.21
2005	12.88	26.79	34.43	53.11	61.21	65.29	69.78	65.76	58.85	50.80	36.32	25.74
2006	24.85	22.86	26.81	56.99	61.45	70.36	77.30	72.60	63.22	42.38	17.85	24.96
2007	23.64	13.18	32.83	46.90	61.46	67.07	79.76	66.68	60.15	52.32	29.54	13.65
2008	14.70	20.18	32.06	41.38	62.57	69.22	72.45	72.58	62.90	53.24	37.77	13.35
2009	15.21	17.34	23.50	46.84	60.69	68.55	71.41	72.35	72.25	40.79	40.67	6.63
2010	17.57	21.35	40.85	51.52	57.94	68.88	71.58	68.52	57.80	52.93	27.11	9.83
2011	14.41	14.46	19.16	42.90	63.52	65.44	67.95	69.68	69.17	50.19	28.35	30.21
2012	23.23	24.68	35.26	47.22	57.74	68.68	73.78	72.36	66.96	39.22	21.33	10.13
2013	17.31	26.65	25.56	37.62	68.24	66.94	70.06	72.77	69.69	49.39	23.80	11.20
2014	21.61	8.12	24.99	44.97	57.64	65.71	74.13	73.20	63.34	53.11	22.05	21.24
2015	22.01	18.52	38.00	52.48	62.72	71.64	73.82	73.43	59.79	54.40	33.61	20.08
2016	20.01	31.04	37.10	54.06	64.12	70.64	71.82	71.33	61.29	38.53	39.34	14.50
2017	20.68	23.18	27.05	42.40	64.21	67.71	72.91	71.10	63.32	46.99	21.58	19.65
2018	17.68	12.43	26.35	40.20	68.45	70.64	73.67	70.19	49.11	45.87	27.44	23.46
2019	20.50	-0.40	29.91	49.61	62.45	66.78	69.73	66.64	60.34	43.18	30.17	20.91
2020	12.14	23.31	24.35	40.31	61.38	65.54	71.37	71.16	62.94	40.52	28.89	26.69
2021	21.67	7.38	39.97	50.52	60.59	74.63	76.92	74.09	66.29	50.90	34.84	6.91
2022	19.70	18.75	29.43	42.64	60.11	68.07	73.60	76.73	69.69	56.25	22.51	5.98
2023	21.44	19.57	23.26	47.51	72.73	73.71	72.81	72.55	66.09	50.11	38.27	31.36
2024	10.70	25.51	27.56	51.96	57.41	65.21	79.18	73.96	69.05	50.06	25.73	26.15
2025	M	M	M	M	M	M	M	M	M	M	M	M
2026	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	28.65	4.37	-2.56	13.88	5.36
2005	-1.50	10.65	19.73	33.66	39.49	48.43	50.53	46.96	40.23	31.75	22.63	12.46
2006	15.14	7.00	14.55	33.80	43.16	51.27	53.93	49.52	43.50	28.28	5.16	10.94
2007	7.55	-2.68	16.84	29.13	40.83	49.86	56.28	47.70	39.53	32.49	16.01	1.85
2008	-1.17	2.49	16.03	24.82	41.74	48.78	50.99	50.51	40.12	31.59	24.93	-2.55
2009	-1.50	1.88	4.45	28.44	36.35	45.96	49.68	48.74	45.48	28.08	22.94	-7.37
2010	5.08	6.53	23.85	31.77	38.23	47.91	50.35	49.59	39.15	33.63	11.47	-1.00
2011	-1.93	-3.25	6.25	26.02	39.52	47.19	49.81	47.95	41.30	30.72	11.80	12.28
2012	6.18	6.65	19.10	27.25	36.18	47.02	53.31	49.59	41.74	24.33	10.38	-1.56
2013	2.50	11.69	9.70	23.05	44.17	50.14	50.43	52.19	44.55	30.57	10.56	-4.79
2014	4.12	-5.07	9.25	27.87	38.65	48.60	54.27	51.93	40.89	34.61	9.38	9.78
2015	6.59	2.31	22.28	31.31	38.76	49.48	53.14	49.80	40.68	34.36	21.09	8.11
2016	5.93	17.35	25.11	33.30	43.10	50.08	52.73	49.82	41.53	30.26	27.84	1.28
2017	6.75	9.97	13.10	29.53	43.01	49.55	52.86	50.30	42.56	30.41	9.13	7.46
2018	3.68	-4.46	12.36	22.58	45.77	49.79	51.47	50.22	35.13	28.32	13.90	8.78
2019	5.37	-15.54	14.24	30.37	39.50	47.98	51.98	48.01	43.20	26.26	16.80	6.10
2020	-1.31	5.80	8.11	21.18	40.50	48.18	53.74	51.04	42.09	26.15	15.07	12.65
2021	9.30	-6.94	19.81	27.21	38.12	53.46	56.35	51.87	43.41	29.76	17.87	-6.10
2022	1.95	2.48	15.72	26.46	39.79	49.84	53.25	54.59	44.60	34.73	10.68	-7.17
2023	9.37	4.52	6.98	29.96	47.48	51.78	54.49	52.14	44.26	31.53	22.41	19.37
2024	-1.43	11.57	12.07	32.25	40.23	45.69	56.86	51.66	46.14	32.63	14.45	11.12
2025	M	M	M	M	M	M	M	M	M	M	M	M
2026	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	42.12	23.26	12.07	24.96	13.79
2005	5.69	18.72	27.08	43.39	50.35	56.86	60.16	56.36	49.54	41.27	29.47	19.10
2006	20.00	14.93	20.68	45.40	52.31	60.82	65.61	61.06	53.36	35.33	11.51	17.95
2007	15.59	5.25	24.83	38.01	51.15	58.47	68.02	57.19	49.84	42.40	22.78	7.75
2008	6.77	11.34	24.04	33.10	52.16	59.00	61.72	61.55	51.51	42.41	31.35	5.40
2009	6.85	9.61	13.98	37.64	48.52	57.26	60.55	60.55	58.87	34.44	31.80	-0.37
2010	11.33	13.94	32.35	41.65	48.08	58.40	60.96	59.06	48.48	43.28	19.29	4.41
2011	6.24	5.60	12.71	34.46	51.52	56.32	58.88	58.82	55.23	40.45	20.07	21.25
2012	14.71	15.67	27.18	37.23	46.96	57.85	63.54	60.98	54.35	31.78	15.86	4.29
2013	9.90	19.17	17.63	30.34	56.21	58.54	60.25	62.48	57.12	39.98	17.18	3.21
2014	12.87	1.53	17.12	36.42	48.14	57.15	64.20	62.57	52.12	43.86	15.72	15.51
2015	14.30	10.42	30.14	41.90	50.74	60.56	63.48	61.62	50.23	44.38	27.35	14.09
2016	12.97	24.19	31.10	43.68	53.61	60.36	62.28	60.57	51.41	34.40	33.59	7.89
2017	13.71	16.57	20.08	35.97	53.61	58.63	62.89	60.70	52.94	38.70	15.35	13.55
2018	10.68	3.99	19.35	31.39	57.11	60.21	62.57	60.20	42.12	37.10	20.67	16.12
2019	12.93	-7.97	22.07	39.99	50.97	57.38	60.85	57.33	51.77	34.72	23.48	13.50
2020	5.42	14.56	16.23	30.74	50.94	56.86	62.55	61.10	52.51	33.34	21.98	19.67
2021	15.49	0.22	29.89	38.86	49.35	64.04	66.63	62.98	54.85	40.33	26.36	0.40
2022	10.83	10.61	22.58	34.55	49.95	58.96	63.42	65.66	57.14	45.49	16.60	-0.60
2023	15.41	12.05	15.12	38.73	60.10	62.75	63.65	62.35	55.18	40.82	30.34	25.36
2024	4.63	18.54	19.82	42.10	48.82	55.45	68.02	62.81	57.60	41.35	20.09	18.64
2025	M	M	M	M	M	M	M	M	M	M	M	M
2026	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	85.4%	82.2%	80.9%	74.9%	78.0%
2005	80.7%	74.4%	76.9%	57.9%	56.7%	73.3%	73.6%	73.6%	71.9%	69.0%	78.1%	82.2%
2006	89.0%	76.1%	82.9%	55.6%	66.9%	65.2%	66.9%	66.2%	70.3%	74.4%	82.0%	76.8%
2007	75.5%	79.6%	76.0%	64.8%	62.0%	68.0%	63.0%	71.6%	67.9%	65.0%	75.6%	83.2%
2008	80.5%	76.7%	76.1%	69.5%	54.2%	65.7%	67.8%	67.4%	66.3%	56.2%	77.4%	79.1%
2009	72.1%	78.9%	74.7%	64.3%	47.9%	54.3%	68.1%	66.2%	55.8%	79.1%	66.4%	78.4%
2010	81.4%	85.5%	72.5%	59.8%	60.8%	62.2%	73.2%	75.5%	72.6%	65.1%	77.4%	87.1%
2011	83.5%	79.9%	84.4%	70.8%	48.1%	70.6%	76.5%	71.9%	57.0%	67.0%	78.0%	77.4%
2012	74.1%	78.4%	78.6%	64.6%	57.8%	65.7%	74.6%	71.2%	60.7%	77.7%	85.6%	84.9%
2013	81.3%	83.9%	79.0%	74.2%	48.6%	73.3%	75.3%	74.6%	61.7%	71.9%	84.8%	81.3%
2014	79.9%	77.2%	71.6%	71.9%	62.8%	74.2%	75.1%	71.9%	70.3%	68.9%	85.0%	88.4%
2015	82.1%	82.2%	76.5%	56.2%	47.8%	60.9%	68.6%	68.8%	73.5%	69.2%	80.0%	82.8%
2016	83.6%	80.9%	82.9%	60.9%	60.2%	66.6%	79.5%	74.8%	71.2%	88.6%	84.0%	78.3%
2017	81.2%	79.7%	82.8%	81.7%	56.9%	69.3%	75.0%	71.2%	68.1%	73.2%	86.1%	76.8%
2018	82.6%	76.6%	81.7%	67.5%	51.0%	64.1%	71.3%	72.6%	79.2%	71.4%	88.0%	85.3%
2019	87.0%	78.9%	77.2%	60.0%	47.7%	76.0%	85.6%	83.3%	81.5%	79.4%	91.2%	83.4%
2020	82.4%	81.6%	84.6%	70.1%	58.6%	75.8%	82.1%	74.6%	72.1%	76.7%	89.2%	86.6%
2021	86.6%	81.9%	78.3%	55.0%	60.2%	68.2%	67.6%	70.1%	66.9%	68.3%	85.6%	85.7%
2022	88.7%	90.3%	89.6%	71.4%	60.0%	70.0%	76.9%	72.3%	63.0%	63.1%	83.0%	83.5%
2023	90.3%	79.2%	81.9%	69.4%	57.2%	71.9%	77.7%	78.3%	67.2%	73.2%	82.1%	88.8%
2024	88.0%	85.8%	78.8%	53.1%	67.4%	63.4%	68.9%	67.7%	66.9%	71.6%	84.6%	83.0%
2025	M	M	M	M	M	M	M	M	M	M	M	M
2026	M	M	M	M	M	M	M	M	M	M	M	M