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
2000	0.31	0.00	M	0.00	M	M	M	M	M	M	M	0.00
2001	1.89	9.17	0.00	1.71	3.36	4.19	7.21	4.39	4.68	5.36	4.30	1.64
2002	1.98	3.42	4.24	0.64	8.00	3.04	2.76	1.63	4.46	4.84	5.18	1.89
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	M
2006	M	M	M	M	M	M	M	M	M	M	M	0.00
2007	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2008	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2009	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2011	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2012	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	M	M
2014	0.69	1.51	2.05	4.40	2.36	3.89	3.13	5.68	3.96	5.84	2.83	4.25
2015	3.42	1.06	2.27	4.30	4.17	9.40	4.25	7.99	4.25	5.12	3.33	5.03
2016	1.30	M	M	M	M	0.00	3.22	3.11	3.83	8.10	3.51	4.08
2017	4.30	3.28	6.46	6.07	5.36	3.19	1.69	3.58	2.77	6.56	4.13	2.70
2018	3.71	2.86	1.85	5.74	1.74	3.67	0.86	2.14	3.70	3.00	5.30	3.93
2019	4.18	4.48	2.39	5.73	3.05	4.51	1.59	3.63	3.72	4.01	4.07	2.47
2020	4.34	2.72	4.27	3.26	1.83	0.98	4.73	5.43	4.82	5.34	2.33	4.34
2021	1.56	2.44	4.42	1.13	2.66	8.76	3.40	0.97	3.76	4.12	3.50	4.48
2022	1.64	4.27	4.35	3.44	3.38	6.39	4.09	5.86	3.52	2.66	4.35	6.21
2023	3.71	3.74	2.05	4.50	2.13	3.70	8.80	6.18	1.79	5.45	3.44	4.39
2024	2.63	1.42	3.43	2.03	3.51	5.52	5.23	7.86	3.58	1.65	3.84	3.92
2025	2.49	3.17	3.37	3.60	4.78	5.77	4.09	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	4.4	6.1	M	6.0	5.2	4.4	3.6	3.3	4.0	4.2	5.1	4.5
2002	4.5	5.9	7.1	7.0	6.0	5.0	4.4	3.7	3.9	5.2	5.6	4.7
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	2.8	M	M	M	4.8	3.9	3.5	2.9	4.6	5.0	5.7
2005	5.2	5.4	6.6	6.7	6.4	4.2	M	3.7	4.1	5.2	6.1	4.9
2006	6.4	6.2	5.8	6.3	6.7	4.2	3.6	4.0	3.5	5.4	4.8	3.9
2007	0.0	1.6	6.8	7.0	6.1	5.2	3.5	3.7	4.1	3.9	4.8	5.9
2008	4.8	5.2	7.0	6.4	5.4	4.6	3.5	4.3	3.5	3.8	5.4	5.3
2009	4.6	6.1	5.7	6.5	5.4	4.8	4.4	3.4	3.6	4.9	4.3	5.3
2010	5.3	6.4	5.7	5.9	4.9	3.9	3.4	3.3	4.1	4.9	4.9	4.9
2011	4.3	5.4	6.4	6.0	6.0	5.1	3.4	3.9	3.3	4.9	3.9	3.8
2012	5.6	4.8	5.7	6.2	4.7	4.4	3.8	3.4	3.7	5.1	3.7	6.9
2013	4.6	5.5	5.0	5.8	4.7	4.5	3.6	3.2	4.0	3.6	5.3	4.7
2014	4.3	4.4	5.3	6.3	5.6	3.8	3.1	3.3	3.5	4.2	5.0	4.8
2015	4.7	5.2	6.0	5.8	5.1	4.0	3.9	3.0	3.0	4.2	4.4	4.4
2016	4.8	5.4	6.2	5.7	5.2	4.5	3.7	3.3	3.5	4.1	5.0	2.7
2017	3.0	5.3	6.4	5.8	5.3	4.0	3.1	3.4	3.0	3.9	4.9	4.4
2018	5.2	3.8	5.7	5.2	5.0	4.3	3.8	0.0	0.0	4.8	4.9	3.7
2019	8.6	5.9	4.9	6.4	5.1	3.8	3.0	2.8	3.0	4.0	4.3	4.3
2020	4.1	4.2	5.7	5.6	5.6	3.8	3.2	3.3	2.9	3.7	4.2	4.3
2021	4.7	4.1	5.0	6.0	4.6	3.4	3.5	3.7	4.2	4.0	3.4	4.7
2022	4.4	5.1	5.3	6.1	4.6	3.7	2.8	2.7	3.6	2.9	3.9	5.0
2023	4.2	4.9	5.3	5.7	5.6	3.7	2.6	3.1	2.5	2.9	4.0	3.6
2024	4.6	3.8	5.5	5.6	4.7	3.6	2.6	2.4	3.2	1.3	4.7	4.0
2025	4.6	5.2	5.3	5.3	4.7	3.6	3.0	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	18.26	18.27	32.00	32.72	50.66	75.90	M	73.95	M	34.90	M	28.80
2001	19.85	22.25	29.80	48.61	69.15	75.32	74.21	77.99	67.51	54.64	42.74	33.39
2002	24.81	25.82	32.77	51.14	59.32	69.91	77.09	77.59	70.73	47.91	35.07	26.41
2003	13.84	18.52	31.55	43.72	61.86	74.91	74.75	73.66	68.63	50.40	39.91	27.01
2004	21.90	28.40	M	M	M	61.94	69.77	64.95	60.30	48.35	31.78	15.24
2005	16.12	26.76	33.24	49.61	58.86	74.80	72.10	M	38.30	54.28	38.62	24.37
2006	26.92	13.27	27.91	40.41	56.59	68.10	70.95	66.77	54.34	46.09	35.97	27.26
2007	22.33	20.43	32.20	46.11	65.30	73.84	M	70.20	68.78	57.63	37.41	22.95
2008	24.37	23.75	30.37	51.36	61.22	70.84	74.16	73.23	66.48	52.44	39.58	23.91
2009	14.12	25.82	35.67	53.15	62.08	71.67	71.89	76.60	67.92	47.98	45.89	25.34
2010	27.05	29.89	43.73	56.26	69.35	72.35	81.03	76.87	65.04	55.20	40.52	26.59
2011	20.56	24.01	34.06	46.85	60.04	73.33	80.84	74.17	69.22	54.74	45.35	30.90
2012	22.72	28.74	41.57	51.67	66.91	74.76	81.22	77.51	68.35	55.41	40.20	27.84
2013	23.29	26.13	38.44	49.63	67.27	69.48	80.31	75.25	65.90	56.71	38.32	19.28
2014	19.65	23.32	26.98	47.16	64.99	75.49	76.77	77.29	66.85	55.61	37.92	29.19
2015	17.32	12.77	30.93	49.00	69.25	70.63	76.59	76.42	73.20	51.90	44.14	35.09
2016	26.01	25.62	36.96	45.78	66.14	74.05	77.23	77.73	69.59	54.06	42.61	26.12
2017	26.16	28.25	30.85	49.69	60.60	73.17	76.61	73.86	72.45	60.84	37.71	19.95
2018	18.72	29.18	37.20	44.06	66.25	72.88	81.38	78.62	69.12	48.82	33.18	25.64
2019	18.04	22.21	34.25	45.31	60.12	71.45	81.89	75.67	64.66	54.41	34.10	26.97
2020	25.19	27.34	37.01	46.69	65.00	76.37	80.51	75.12	66.04	51.57	42.74	31.39
2021	25.92	25.16	37.98	54.47	65.51	75.84	75.93	80.51	67.83	58.26	39.42	27.41
2022	13.14	22.29	32.07	48.00	67.40	71.06	77.43	75.49	66.31	58.03	40.99	30.95
2023	26.21	23.97	36.34	49.56	65.45	70.63	77.84	71.85	71.60	59.17	37.21	31.85
2024	24.67	30.05	38.57	51.32	66.90	74.63	78.66	74.78	70.81	57.04	43.37	26.83
2025	20.23	21.10	35.58	48.81	62.79	73.70	78.87	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	17.46	14.15	32.00	30.15	49.28	74.70	M	68.90	M	33.80	M	27.70
2001	-2.29	-0.66	28.80	27.51	41.68	51.15	52.24	51.76	44.90	35.13	29.30	20.52
2002	8.80	4.50	13.74	27.60	36.69	46.06	55.00	52.14	44.96	31.75	21.07	8.75
2003	-6.77	-5.69	8.39	23.95	39.33	47.62	53.56	54.21	45.51	33.36	25.17	12.35
2004	21.90	13.10	M	M	M	57.59	63.10	60.54	56.67	42.99	26.82	9.00
2005	-7.40	4.81	13.04	30.43	40.38	50.71	71.80	M	36.00	39.11	25.12	7.27
2006	11.08	8.49	22.10	38.44	51.06	61.08	66.06	60.53	49.50	45.43	33.94	23.22
2007	1.95	-3.20	13.65	28.62	38.10	49.58	M	56.70	42.22	37.45	23.43	6.57
2008	3.61	0.09	7.70	30.51	37.67	52.56	55.34	53.24	43.75	32.67	26.95	3.52
2009	-11.15	3.26	12.41	31.07	37.79	48.85	54.58	53.33	41.48	33.57	28.14	10.30
2010	8.36	15.97	23.44	33.40	40.17	49.38	57.48	52.67	48.28	34.81	24.04	11.56
2011	3.62	2.70	14.21	27.66	42.92	50.64	53.24	51.10	47.70	36.87	27.40	13.10
2012	1.07	4.27	21.96	30.54	42.93	50.94	52.53	54.41	42.39	38.13	19.50	12.57
2013	-0.80	6.72	22.23	27.67	41.98	48.26	53.94	52.04	42.96	34.17	22.57	2.33
2014	-1.44	-1.74	0.66	27.19	42.06	49.87	53.82	52.39	43.05	38.50	22.68	15.03
2015	-7.88	-14.30	7.04	25.59	42.34	47.51	53.44	55.39	47.97	29.43	26.95	25.15
2016	7.29	5.26	11.59	22.03	39.78	49.11	53.12	54.10	43.14	35.22	30.15	9.20
2017	9.92	6.92	9.61	32.17	42.15	48.86	52.90	48.98	46.95	38.61	20.63	3.58
2018	-1.28	4.67	19.89	24.53	35.99	46.79	53.89	53.15	45.64	32.13	19.17	6.23
2019	-1.49	-1.02	11.04	27.82	37.01	46.14	53.16	50.04	43.46	34.61	17.95	10.33
2020	8.20	2.34	17.81	26.38	38.18	48.37	58.35	50.73	40.97	33.00	24.56	16.26
2021	10.18	2.00	14.78	32.31	38.44	51.43	52.76	59.88	48.46	40.80	24.06	9.18
2022	-10.89	0.65	15.58	30.36	41.28	50.89	53.50	55.39	45.05	33.66	23.61	19.08
2023	10.60	1.66	19.53	30.62	37.77	51.54	60.01	51.85	49.28	41.50	22.18	17.61
2024	7.60	10.16	23.63	31.43	44.91	53.54	57.84	55.27	48.60	35.89	29.06	11.91
2025	3.15	1.08	17.51	28.58	42.11	49.64	57.33	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
2000	17.86	16.21	32.00	31.44	49.97	75.30	M	71.42	M	34.35	M	28.25
2001	8.78	10.80	29.30	38.06	55.41	63.23	63.23	64.88	56.20	44.88	36.02	26.95
2002	16.81	15.16	23.25	39.37	48.01	57.98	66.05	64.86	57.84	39.83	28.07	17.58
2003	3.53	6.41	19.97	33.83	50.60	61.27	64.16	63.94	57.07	41.88	32.54	19.68
2004	21.90	20.75	M	M	M	59.77	66.43	62.74	58.48	45.67	29.30	12.12
2005	4.36	15.79	23.14	40.02	49.62	62.75	71.95	M	37.15	46.70	31.87	15.82
2006	19.00	10.88	25.00	39.43	53.82	64.59	68.51	63.65	51.92	45.76	34.96	25.24
2007	12.14	8.61	22.92	37.36	51.70	61.71	M	63.45	55.50	47.54	30.42	14.76
2008	13.99	11.92	19.03	40.94	49.45	61.70	64.75	63.23	55.12	42.56	33.26	13.71
2009	1.48	14.54	24.04	42.11	49.93	60.26	63.23	64.97	54.70	40.78	37.02	17.82
2010	17.70	22.93	33.58	44.83	54.76	60.86	69.25	64.77	56.66	45.00	32.28	19.07
2011	12.09	13.36	24.13	37.25	51.48	61.99	67.04	62.64	58.46	45.81	36.37	22.00
2012	11.89	16.51	31.77	41.10	54.92	62.85	66.88	65.96	55.37	46.77	29.85	20.21
2013	11.24	16.42	30.34	38.65	54.63	58.87	67.13	63.65	54.43	45.44	30.45	10.81
2014	9.11	10.79	13.82	37.18	53.52	62.68	65.29	64.84	54.95	47.06	30.30	22.11
2015	4.72	-0.76	18.99	37.29	55.79	59.07	65.01	65.91	60.58	40.67	35.54	30.12
2016	16.65	15.44	24.27	33.91	52.96	61.58	65.18	65.92	56.36	44.64	36.38	17.66
2017	18.04	17.59	20.23	40.93	51.38	61.02	64.76	61.42	59.70	49.72	29.17	11.77
2018	8.72	16.92	28.55	34.29	51.12	59.84	67.64	65.88	57.38	40.48	26.18	15.94
2019	8.27	10.59	22.64	36.57	48.57	58.80	67.53	62.85	54.06	44.51	26.02	18.65
2020	16.70	14.84	27.41	36.54	51.59	62.37	69.43	62.92	53.50	42.29	33.65	23.83
2021	18.05	13.58	26.38	43.39	51.97	63.63	64.34	70.20	58.15	49.53	31.74	18.29
2022	1.12	11.47	23.82	39.18	54.34	60.98	65.47	65.44	55.68	45.85	32.30	25.02
2023	18.40	12.82	27.94	40.09	51.61	61.08	68.92	61.85	60.44	50.34	29.70	24.73
2024	16.14	20.10	31.10	41.37	55.90	64.09	68.25	65.03	59.71	46.46	36.22	19.37
2025	11.69	11.09	26.55	38.69	52.45	61.67	68.10	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
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	74.5%	71.0%	M	59.1%	62.0%	73.0%	82.6%	81.0%	83.7%	83.5%	83.6%	82.1%
2002	81.7%	75.1%	70.4%	57.5%	70.0%	73.3%	76.8%	80.3%	80.8%	83.0%	83.9%	81.7%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	48.3%	M	M	M	78.8%	77.1%	84.1%	81.5%	79.3%	80.2%	82.1%
2005	72.0%	72.4%	67.4%	70.5%	68.7%	74.8%	M	78.0%	82.7%	83.2%	83.0%	82.9%
2006	83.2%	74.5%	67.2%	66.8%	73.4%	77.3%	80.8%	79.2%	85.1%	84.5%	85.5%	85.2%
2007	77.6%	67.5%	66.1%	74.3%	55.9%	60.2%	M	60.8%	77.0%	79.9%	77.8%	78.2%
2008	76.3%	74.1%	69.1%	67.3%	65.6%	78.3%	86.9%	84.5%	85.7%	84.2%	81.7%	80.6%
2009	76.0%	77.1%	67.8%	65.3%	70.8%	78.4%	87.0%	80.2%	80.0%	82.0%	79.9%	79.9%
2010	75.1%	75.1%	62.7%	66.1%	63.7%	77.3%	79.1%	80.7%	86.0%	77.9%	83.1%	85.5%
2011	74.8%	71.5%	71.7%	67.6%	75.6%	71.1%	76.0%	82.4%	82.8%	79.8%	81.8%	83.2%
2012	78.4%	73.7%	70.4%	64.6%	69.3%	73.1%	72.6%	79.0%	79.2%	80.4%	73.8%	83.5%
2013	71.1%	70.2%	71.1%	64.3%	70.2%	77.1%	69.0%	79.7%	85.0%	83.3%	71.7%	75.5%
2014	68.7%	65.7%	63.3%	65.3%	68.7%	71.9%	74.8%	75.4%	84.9%	83.0%	77.4%	83.0%
2015	74.4%	66.1%	64.0%	66.5%	67.7%	76.6%	80.7%	85.1%	83.7%	80.8%	81.5%	90.6%
2016	81.2%	74.4%	67.6%	59.3%	69.9%	76.3%	81.8%	81.7%	84.0%	86.6%	88.1%	85.5%
2017	82.8%	76.9%	66.8%	78.8%	79.1%	78.8%	81.6%	84.2%	85.8%	84.8%	83.0%	79.6%
2018	79.8%	81.6%	73.4%	72.8%	65.7%	75.6%	76.3%	84.3%	85.3%	79.7%	84.5%	83.0%
2019	82.5%	72.5%	63.1%	66.9%	66.2%	74.2%	75.9%	80.9%	83.8%	81.9%	79.3%	78.9%
2020	80.6%	77.7%	68.0%	62.9%	55.8%	68.1%	78.0%	85.5%	M	78.4%	80.5%	81.9%
2021	80.3%	76.4%	66.9%	64.0%	64.6%	77.6%	79.4%	76.0%	80.0%	82.2%	80.9%	76.1%
2022	70.5%	74.2%	74.2%	64.5%	64.4%	76.3%	76.9%	81.7%	81.2%	80.0%	80.2%	79.7%
2023	80.4%	73.2%	70.3%	67.5%	58.9%	77.7%	83.2%	83.5%	82.4%	85.1%	77.7%	79.6%
2024	76.7%	73.1%	71.2%	65.9%	71.5%	74.5%	80.1%	83.8%	80.5%	78.2%	79.2%	82.2%
2025	75.8%	71.1%	69.9%	67.3%	71.3%	74.3%	81.6%	M	M	M	M	M