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
2001	M	M	M	M	M	M	M	M	0.00	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2003	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
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	0.65	2.24	0.59	0.15	0.15	0.25	0.27	0.03	0.21	0.06	0.01	0.01
2007	0.00	0.00	0.70	0.96	2.88	1.65	1.42	2.03	0.99	16.58	0.40	0.71
2008	0.41	0.57	0.22	1.07	2.05	3.86	1.37	2.55	0.59	1.51	0.14	0.17
2009	0.29	0.18	2.98	1.80	1.73	1.67	2.06	1.85	0.70	1.82	0.08	0.10
2010	0.26	0.00	0.00	1.42	3.61	3.63	2.30	2.37	2.12	0.17	0.39	0.19
2011	0.32	0.08	0.06	0.18	2.03	2.40	0.54	0.76	0.39	1.48	0.28	0.30
2012	0.13	0.08	0.08	2.29	5.74	2.47	3.75	1.94	0.04	0.79	0.71	0.11
2013	0.28	0.07	0.79	0.48	1.12	3.82	2.16	2.30	2.27	0.11	0.47	0.32
2014	0.23	0.25	0.48	3.13	2.66	3.93	0.89	4.21	4.35	1.19	0.60	0.22
2015	0.67	1.01	0.87	1.02	0.95	1.20	3.92	2.10	1.57	1.14	0.44	0.20
2016	0.23	0.34	0.46	0.41	4.19	2.34	3.22	2.53	1.95	3.93	0.37	0.66
2017	0.80	1.03	0.50	0.51	0.56	1.33	0.17	1.72	0.27	1.03	0.58	0.20
2018	0.03	0.24	0.71	0.35	1.29	1.78	0.78	0.70	1.23	0.70	0.67	0.36
2019	0.27	0.61	0.00	0.64	0.15	4.36	1.19	3.41	4.42	0.41	0.61	0.12
2020	0.25	0.09	0.26	0.20	0.69	1.29	2.77	0.17	0.35	0.08	0.64	0.35
2021	0.29	0.25	0.45	0.36	2.62	3.02	0.22	6.18	0.13	1.31	0.38	0.50
2022	0.38	0.35	0.19	0.38	2.37	0.90	2.58	1.17	0.18	0.98	0.45	0.48
2023	0.28	0.11	0.41	0.87	0.62	1.16	0.79	0.97	0.88	0.59	0.82	0.06
2024	0.20	0.55	0.58	1.10	2.50	2.38	0.49	1.18	0.69	0.04	0.77	0.45
2025	0.18	0.37	0.49	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
2001	M	M	M	M	M	M	M	M	M	M	M	M
2002	M	M	M	M	M	M	M	M	M	M	M	M
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	8.8	9.4	10.6	11.0
2005	11.2	9.2	11.1	11.9	12.2	9.8	9.0	10.0	9.4	9.7	8.4	10.6
2006	8.7	9.7	12.2	10.2	11.5	10.7	6.6	8.4	10.0	10.6	12.2	12.8
2007	12.4	9.0	12.7	11.7	12.8	10.0	9.0	10.6	11.1	11.0	13.6	9.8
2008	11.4	10.4	11.0	11.7	12.2	10.7	9.5	9.7	9.2	12.5	11.0	11.4
2009	13.4	10.0	11.7	11.0	11.8	10.3	9.6	8.4	11.1	10.9	11.8	9.7
2010	11.7	7.9	10.0	12.7	12.0	9.9	9.4	9.6	10.4	10.2	10.5	10.9
2011	11.4	13.9	11.4	11.3	12.5	9.4	10.0	8.6	9.5	10.9	12.2	13.1
2012	12.7	8.4	11.9	12.7	11.8	11.4	8.2	8.3	9.8	12.6	11.4	9.6
2013	12.9	11.6	10.6	11.8	11.9	10.0	8.5	7.1	10.0	10.1	10.8	12.2
2014	14.4	11.8	11.2	12.1	11.1	11.5	10.0	7.7	9.1	10.2	11.8	10.0
2015	11.3	11.4	11.7	12.4	9.5	9.4	9.2	8.2	9.2	10.7	11.7	9.9
2016	10.0	11.0	11.6	11.7	11.7	10.9	7.2	8.8	8.6	9.9	10.7	13.1
2017	11.5	10.7	12.4	11.9	12.1	12.2	9.3	7.5	9.0	13.0	12.2	11.9
2018	10.6	11.5	10.9	11.9	10.6	9.4	9.8	8.0	9.2	9.5	9.4	9.5
2019	11.1	8.3	11.6	12.0	9.8	10.0	9.1	9.0	8.8	11.5	10.3	9.9
2020	11.2	11.0	11.7	12.8	12.2	12.8	9.5	8.9	11.8	12.2	12.4	10.2
2021	12.6	12.4	11.7	11.1	11.2	11.3	8.6	9.6	10.5	11.0	12.6	12.1
2022	13.1	12.9	13.9	14.0	12.4	11.9	8.6	8.5	10.0	11.7	13.9	10.2
2023	8.8	11.7	10.4	11.4	9.4	8.5	9.3	8.8	9.0	11.2	11.0	10.3
2024	10.7	10.5	10.5	12.3	11.6	12.4	7.3	8.3	11.1	10.6	10.7	10.5
2025	14.7	11.3	9.6	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
2001	M	M	M	M	M	M	M	M	70.93	48.21	40.50	21.34
2002	19.32	29.26	20.43	42.16	60.77	70.92	78.97	69.72	65.32	35.43	34.59	26.69
2003	17.63	15.92	30.22	51.83	63.77	71.37	80.35	82.23	63.52	53.97	24.03	26.46
2004	M	M	M	M	M	M	M	55.48	61.77	44.50	32.26	19.37
2005	1.39	M	M	M	M	73.63	78.08	M	60.10	56.00	35.94	25.36
2006	32.33	22.26	32.05	60.81	66.00	71.73	80.27	80.88	66.24	45.91	33.87	29.74
2007	24.78	16.89	41.88	52.08	66.15	74.20	84.92	76.00	68.08	55.06	34.80	18.23
2008	20.69	18.74	37.39	52.53	65.66	70.24	78.45	80.04	68.63	55.61	39.87	11.60
2009	15.08	16.97	27.53	48.95	63.70	71.97	73.21	75.02	77.66	42.97	47.02	8.02
2010	19.16	17.04	40.50	57.56	58.93	72.83	77.30	76.08	62.33	59.05	31.84	16.00
2011	16.43	18.04	24.36	48.48	61.73	69.78	78.86	80.62	74.62	57.38	34.92	32.03
2012	27.69	30.99	45.46	53.23	62.40	73.48	79.05	78.35	71.75	46.74	30.07	16.00
2013	19.36	25.73	20.72	37.38	68.48	71.64	74.45	78.82	72.75	51.42	32.09	11.63
2014	21.23	9.20	25.29	46.48	65.09	67.10	77.21	75.12	65.61	56.39	26.80	26.45
2015	24.74	17.52	41.15	54.70	65.32	76.45	78.58	76.61	66.92	56.58	39.71	28.68
2016	23.80	35.35	44.15	56.76	68.51	75.06	75.57	74.22	66.95	47.18	47.40	17.87
2017	22.76	27.18	37.06	53.36	68.79	73.31	83.21	77.98	69.36	54.69	29.29	22.49
2018	25.22	13.62	28.12	45.06	73.38	76.12	80.03	80.44	59.28	50.07	29.97	27.62
2019	22.48	0.24	34.15	55.43	64.64	73.71	77.60	75.34	64.69	46.00	32.54	25.86
2020	20.37	28.73	38.10	48.29	66.88	72.77	77.03	82.81	68.46	46.89	35.27	29.80
2021	25.65	9.82	45.18	52.52	63.63	78.35	84.26	76.89	73.48	56.16	41.06	16.58
2022	20.97	19.10	33.47	44.35	65.38	75.74	78.69	82.15	74.53	54.93	26.71	11.64
2023	22.66	24.02	22.61	43.95	72.38	79.93	78.53	79.33	74.37	50.54	38.65	39.68
2024	17.34	29.65	30.39	60.34	63.15	69.49	81.43	80.71	77.04	60.71	32.54	23.79
2025	19.00	8.59	34.10	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
2001	M	M	M	M	M	M	M	M	44.60	31.45	27.07	7.62
2002	8.00	16.78	4.61	21.76	34.35	53.88	57.10	52.14	45.11	23.76	22.34	17.52
2003	2.04	1.80	13.93	33.13	43.77	52.19	57.03	55.97	42.55	35.90	9.57	14.18
2004	M	M	M	M	M	M	M	50.32	57.25	39.59	25.19	13.31
2005	-16.46	M	M	M	M	53.00	52.94	M	45.50	29.10	21.03	10.42
2006	18.02	7.22	16.35	33.49	42.16	50.80	54.54	50.83	42.23	25.52	11.43	10.44
2007	5.65	-3.62	20.16	28.26	41.09	48.83	57.71	49.43	39.98	31.83	16.32	0.68
2008	-0.78	-3.99	15.06	24.61	36.00	47.58	52.07	50.96	39.17	30.19	20.37	-6.42
2009	-3.38	-1.62	7.81	27.15	34.27	45.74	49.02	48.08	47.04	28.85	23.00	-8.64
2010	4.10	-1.39	21.78	29.28	37.40	51.47	53.75	52.09	43.39	32.33	15.59	0.35
2011	-0.08	0.76	8.27	28.31	39.54	48.12	53.87	50.85	42.68	33.87	16.29	15.12
2012	8.63	8.11	22.73	29.13	40.31	50.61	57.48	50.25	40.54	26.50	13.04	-2.65
2013	-0.48	8.67	2.15	21.25	41.59	50.15	52.11	51.01	47.16	27.73	11.86	-5.06
2014	-0.83	-9.99	10.43	26.86	38.94	49.02	52.98	53.03	42.37	33.64	11.30	12.33
2015	8.60	-4.60	21.40	29.92	35.00	49.39	54.32	51.23	42.07	33.48	21.82	12.44
2016	6.59	16.34	23.64	26.71	42.63	51.72	53.27	49.59	40.67	31.73	27.08	3.71
2017	5.42	11.56	16.15	28.33	37.73	47.23	51.75	47.05	40.51	30.08	11.56	5.34
2018	1.16	-7.44	10.32	21.40	44.70	50.49	51.29	49.60	36.26	26.51	17.58	11.35
2019	2.44	-18.56	12.91	27.80	32.66	48.96	51.71	48.83	44.02	25.13	17.14	7.23
2020	3.52	7.13	16.15	20.14	37.34	49.61	52.71	48.94	42.48	25.59	16.72	11.15
2021	9.02	-7.21	20.98	26.37	36.01	51.73	55.64	52.61	43.97	33.32	21.37	-1.40
2022	-0.19	-1.21	16.10	25.16	39.78	48.27	54.24	53.77	44.16	33.09	12.88	-3.81
2023	9.19	7.10	4.01	24.82	44.15	53.82	50.37	52.32	44.64	29.70	21.46	16.79
2024	1.32	12.42	11.35	30.21	40.43	46.68	54.57	50.50	47.40	31.13	16.93	6.35
2025	1.91	-8.53	16.80	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
2001	M	M	M	M	M	M	M	M	57.77	39.83	33.78	14.48
2002	13.66	23.02	12.52	31.96	47.56	62.40	68.03	60.93	55.21	29.60	28.47	22.10
2003	9.83	8.86	22.07	42.48	53.77	61.78	68.69	69.10	53.03	44.93	16.80	20.32
2004	M	M	M	M	M	M	M	52.90	59.51	42.05	28.73	16.34
2005	-7.53	M	M	M	M	63.32	65.51	M	52.80	42.55	28.48	17.89
2006	25.18	14.74	24.20	47.15	54.08	61.27	67.41	65.86	54.23	35.71	22.65	20.09
2007	15.22	6.64	31.02	40.17	53.62	61.52	71.32	62.71	54.03	43.44	25.56	9.46
2008	9.95	7.38	26.22	38.57	50.83	58.91	65.26	65.50	53.90	42.90	30.12	2.59
2009	5.85	7.68	17.67	38.05	48.99	58.86	61.11	61.55	62.35	35.91	35.01	-0.31
2010	11.63	7.82	31.14	43.42	48.16	62.15	65.52	64.09	52.86	45.69	23.71	8.17
2011	8.17	9.40	16.32	38.40	50.64	58.95	66.37	65.73	58.65	45.63	25.61	23.58
2012	18.16	19.55	34.10	41.18	51.36	62.04	68.27	64.30	56.14	36.62	21.56	6.68
2013	9.44	17.20	11.44	29.31	55.04	60.89	63.28	64.91	59.95	39.57	21.97	3.28
2014	10.20	-0.39	17.86	36.67	52.01	58.06	65.10	64.07	53.99	45.02	19.05	19.39
2015	16.67	6.46	31.27	42.31	50.16	62.92	66.45	63.92	54.49	45.03	30.77	20.56
2016	15.19	25.84	33.90	41.74	55.57	63.39	64.42	61.90	53.81	39.46	37.24	10.79
2017	14.09	19.37	26.60	40.84	53.26	60.27	67.48	62.52	54.93	42.38	20.43	13.92
2018	13.19	3.09	19.22	33.23	59.04	63.30	65.66	65.02	47.77	38.29	23.78	19.48
2019	12.46	-9.16	23.53	41.62	48.65	61.33	64.65	62.08	54.36	35.56	24.84	16.55
2020	11.94	17.93	27.13	34.22	52.11	61.19	64.87	65.87	55.47	36.24	26.00	20.47
2021	17.34	1.31	33.08	39.44	49.82	65.04	69.95	64.75	58.73	44.74	31.22	7.59
2022	10.39	8.94	24.79	34.76	52.58	62.00	66.46	67.96	59.35	44.01	19.79	3.92
2023	15.93	15.56	13.31	34.38	58.26	66.88	64.45	65.83	59.50	40.12	30.06	28.24
2024	9.33	21.04	20.87	45.28	51.79	58.08	68.00	65.61	62.22	45.92	24.73	15.07
2025	10.45	0.03	25.45	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
2001	M	M	M	M	M	M	M	M	M	M	M	M
2002	M	M	M	M	M	M	M	M	M	M	M	M
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	67.7%	74.0%	73.6%	86.5%
2005	86.8%	84.9%	86.8%	61.5%	59.5%	78.3%	75.5%	67.9%	68.3%	75.1%	83.0%	83.9%
2006	88.1%	80.9%	84.1%	63.5%	62.0%	70.7%	68.6%	56.4%	69.3%	74.6%	78.3%	78.4%
2007	78.5%	82.3%	75.5%	62.1%	63.4%	66.0%	65.7%	63.2%	60.1%	69.6%	70.5%	82.7%
2008	78.4%	81.6%	76.7%	60.9%	49.9%	66.9%	65.8%	60.4%	63.6%	63.8%	78.2%	78.7%
2009	78.5%	82.5%	79.8%	68.8%	53.4%	59.1%	70.0%	67.2%	53.2%	82.4%	63.5%	81.6%
2010	83.3%	85.6%	78.7%	56.8%	67.1%	68.0%	66.6%	69.0%	71.5%	67.2%	78.4%	83.9%
2011	82.9%	79.2%	82.6%	69.2%	62.7%	70.1%	66.6%	57.2%	53.4%	65.2%	72.9%	75.7%
2012	70.6%	75.7%	69.8%	65.4%	64.3%	63.6%	73.6%	65.6%	49.2%	72.1%	83.3%	82.6%
2013	80.4%	83.5%	83.1%	76.7%	51.6%	65.7%	72.3%	68.2%	62.2%	66.6%	79.0%	78.8%
2014	76.8%	74.7%	76.3%	72.5%	56.0%	72.0%	67.3%	75.6%	70.3%	70.6%	77.5%	81.0%
2015	77.7%	78.0%	74.9%	56.0%	49.2%	51.0%	63.9%	67.3%	67.3%	72.2%	75.1%	77.7%
2016	79.4%	77.7%	72.0%	54.0%	56.0%	61.1%	73.9%	71.7%	68.8%	83.1%	75.6%	75.5%
2017	75.0%	76.4%	72.7%	63.2%	50.3%	56.6%	57.3%	59.7%	55.6%	61.5%	79.0%	73.1%
2018	74.3%	71.9%	82.1%	64.4%	47.9%	58.9%	57.9%	56.0%	68.5%	68.6%	83.7%	79.4%
2019	78.8%	74.3%	73.1%	54.1%	44.9%	55.7%	68.0%	66.4%	74.5%	71.9%	82.9%	81.7%
2020	77.6%	74.3%	69.6%	56.0%	49.4%	60.1%	69.6%	52.3%	53.9%	59.9%	76.0%	80.1%
2021	79.8%	72.8%	66.9%	52.1%	47.2%	53.2%	58.5%	61.0%	50.2%	65.3%	73.4%	74.7%
2022	78.1%	76.9%	75.2%	66.5%	55.6%	53.5%	67.6%	63.6%	52.7%	63.5%	81.4%	79.2%
2023	84.9%	76.3%	80.3%	73.0%	57.5%	57.2%	57.8%	56.8%	58.2%	69.6%	74.6%	70.5%
2024	77.1%	80.5%	69.5%	52.3%	60.4%	61.3%	65.7%	57.8%	55.1%	57.1%	78.7%	82.2%
2025	78.2%	74.1%	80.8%	M	M	M	M	M	M	M	M	M