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
1995	M	M	M	0.00	0.00	0.00	M	M	M	M	M	M
1996	M	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1997	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1998	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1999	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2000	0.01	0.02	0.00	0.00	0.05	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2001	5.02	3.13	0.01	2.12	1.55	1.41	0.33	2.51	1.61	4.77	8.28	10.29
2002	9.21	6.54	1.53	1.89	0.89	1.67	0.27	0.82	3.42	0.55	3.29	1.50
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	M	M	M
2009	M	M	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	5.03	0.86	3.82	1.92
2014	6.11	6.20	6.72	2.68	1.87	0.82	0.39	0.57	2.65	7.10	5.73	5.88
2015	3.96	5.10	3.47	0.75	0.59	0.25	0.64	0.98	3.81	5.00	7.10	11.60
2016	7.65	6.97	7.30	0.59	0.71	1.13	0.87	0.28	1.85	12.11	9.25	6.92
2017	3.32	3.62	6.86	3.61	2.27	1.44	0.03	0.17	1.07	5.05	11.15	5.69
2018	11.33	2.26	1.70	4.96	0.41	1.14	0.03	0.24	2.41	0.79	0.46	0.61
2019	0.38	0.03	0.00	0.09	0.04	M	M	M	M	M	M	M
2020	M	M	M	M	1.45	2.18	0.52	0.99	3.76	5.85	7.80	6.54
2021	8.73	4.68	1.74	1.40	0.65	0.84	0.02	0.25	5.58	5.27	16.70	7.81
2022	5.63	3.23	3.75	5.22	2.32	2.04	1.21	0.10	0.10	3.40	3.82	7.71
2023	3.17	3.88	4.05	2.58	0.58	1.38	0.69	1.01	1.10	5.64	6.04	7.92
2024	9.09	5.19	3.11	2.00	1.51	1.45	0.61	0.73	0.03	0.04	0.04	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	3.7	4.2	5.0	M	M	M	M	M	M
1996	M	M	M	M	5.2	6.9	M	M	M	M	M	M
1997	M	M	M	M	M	M	M	M	M	M	M	M
1998	M	M	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	3.5	4.1	4.3	5.1
2000	5.4	5.1	4.6	4.9	4.1	4.1	3.2	3.4	3.4	3.5	3.7	4.1
2001	4.1	4.6	4.7	4.7	4.3	4.8	3.7	3.2	3.3	4.9	4.5	5.1
2002	4.7	4.5	5.4	4.4	4.8	4.4	3.7	3.3	3.8	2.9	4.0	4.6
2003	4.5	3.5	4.5	4.2	3.9	4.4	3.7	3.2	3.5	4.3	4.5	4.7
2004	3.9	3.9	4.6	3.9	4.0	4.0	3.3	3.1	4.6	0.0	0.0	0.0
2005	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2006	0.0	0.0	0.0	0.0	0.0	0.3	0.0	0.0	0.0	0.0	0.0	0.0
2007	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2008	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	M	M	M
2009	M	M	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2010	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
2011	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	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	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	54.50	68.07	66.40	M	M	M	M	M	M
1996	M	M	M	M	54.57	62.40	72.53	70.71	58.69	49.59	40.08	35.24
1997	38.22	41.85	42.63	51.27	61.47	61.20	68.87	71.10	63.04	50.73	46.31	41.31
1998	39.21	43.48	47.29	53.00	59.32	66.41	71.89	72.16	66.10	52.55	44.00	40.29
1999	40.11	40.12	43.04	52.11	54.04	59.70	66.36	73.00	63.87	54.35	47.07	43.29
2000	38.48	42.74	45.62	52.83	57.16	65.41	70.65	69.85	64.30	54.17	43.10	39.66
2001	42.52	41.02	46.31	51.22	58.62	62.35	70.75	69.89	64.60	52.83	46.42	39.76
2002	40.62	42.07	41.86	52.01	57.38	68.16	72.14	73.15	65.80	55.55	49.19	41.98
2003	45.99	43.69	46.68	50.68	58.75	70.39	75.70	75.33	69.03	56.24	43.00	40.55
2004	M	45.70	M	M	M	72.12	69.80	69.04	57.30	50.88	42.46	40.85
2005	34.12	46.01	49.73	54.31	62.37	64.32	71.58	M	55.80	54.64	44.75	41.85
2006	43.26	38.36	39.87	46.61	54.60	61.03	64.36	65.97	60.85	47.68	42.30	39.99
2007	40.59	45.07	47.23	51.49	58.29	63.28	73.69	70.67	62.90	51.96	44.25	38.76
2008	37.70	43.38	43.59	48.32	59.98	63.53	71.48	70.74	M	M	M	M
2009	M	M	45.11	55.23	62.05	70.77	80.39	74.94	70.02	54.68	47.47	40.86
2010	45.68	46.99	49.04	52.60	57.37	63.67	74.78	76.29	64.33	56.62	45.04	42.68
2011	42.91	39.10	44.23	47.38	56.08	63.97	69.52	72.66	67.37	51.70	42.20	39.49
2012	38.46	41.49	42.58	50.99	57.36	59.71	70.26	73.68	70.06	53.65	44.53	38.13
2013	38.82	41.34	46.89	51.57	59.66	64.56	74.10	71.48	64.53	53.99	44.26	37.68
2014	42.74	37.10	45.59	52.44	61.52	65.07	74.39	74.36	67.19	56.58	45.24	41.81
2015	44.48	47.89	50.65	52.41	64.16	72.56	76.59	73.26	61.32	57.23	44.05	40.14
2016	40.75	45.26	48.66	58.62	63.69	66.94	70.23	73.88	63.28	51.61	47.90	35.21
2017	36.89	38.87	43.69	49.96	60.20	65.40	72.63	77.05	68.29	54.79	43.57	39.21
2018	41.66	39.90	46.34	51.30	65.20	65.32	76.68	74.20	62.98	55.49	47.34	41.16
2019	42.79	34.93	49.28	53.16	64.39	67.37	70.94	72.82	62.36	50.61	46.14	41.48
2020	40.84	42.58	45.05	53.89	60.94	63.34	70.53	71.58	68.61	54.02	44.33	43.03
2021	41.41	39.73	46.15	55.99	59.58	73.11	77.10	74.57	64.01	50.80	45.79	34.79
2022	40.09	42.47	46.58	47.66	53.91	64.29	73.84	77.32	71.05	62.56	41.85	35.97
2023	41.08	39.73	44.49	49.04	66.94	69.15	76.39	75.79	66.58	55.05	45.12	44.93
2024	39.59	42.97	47.46	52.34	59.45	64.84	77.13	71.77	66.37	54.12	46.76	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	47.50	50.15	50.00	M	M	M	M	M	M
1996	M	M	M	M	42.67	49.88	57.27	57.03	50.27	43.55	36.04	31.52
1997	34.13	36.77	36.03	41.62	50.83	51.33	57.10	60.24	55.04	45.70	42.10	37.86
1998	35.21	39.60	40.54	42.25	48.21	53.52	60.61	58.60	55.77	46.68	41.00	35.71
1999	36.33	35.04	36.31	40.89	43.56	49.48	55.18	57.00	52.70	44.42	40.20	36.68
2000	33.90	36.97	37.20	42.49	45.83	51.75	53.90	55.05	51.73	44.94	35.69	34.06
2001	35.18	32.68	36.15	38.08	41.45	41.89	46.23	48.63	45.21	42.10	38.04	33.34
2002	34.17	32.40	31.64	36.44	39.73	46.11	49.31	49.49	41.56	38.51	39.33	35.04
2003	4.10	20.22	36.49	34.44	39.31	45.37	45.95	42.41	45.10	42.57	33.74	34.03
2004	M	39.95	M	M	M	68.07	63.16	64.95	54.90	49.05	40.72	38.98
2005	26.36	34.31	39.67	41.55	48.47	50.25	55.26	M	48.90	44.64	36.71	35.43
2006	37.64	33.85	35.91	43.98	51.72	57.36	60.34	60.50	58.84	47.03	41.37	38.75
2007	32.50	36.40	36.96	38.88	44.19	48.80	57.53	55.40	50.49	42.64	36.45	32.85
2008	31.20	35.00	33.39	35.16	45.73	48.06	54.93	53.31	M	M	M	M
2009	M	M	33.09	37.06	42.69	51.78	55.77	54.95	50.92	41.98	36.22	31.24
2010	37.55	38.32	36.27	38.09	42.23	47.09	53.24	54.73	50.08	44.46	32.70	33.07
2011	31.21	28.39	35.15	35.16	43.06	48.38	53.52	56.92	54.76	43.87	34.85	33.95
2012	32.01	35.09	34.07	40.71	44.39	47.43	55.14	58.28	54.13	45.09	38.88	33.96
2013	33.06	35.59	37.65	40.67	47.86	52.11	57.65	57.75	53.92	44.32	38.10	31.61
2014	35.90	30.01	36.79	41.01	49.10	50.92	58.52	60.65	55.27	48.99	37.51	36.36
2015	37.81	41.08	40.77	39.82	50.32	56.79	59.69	58.50	49.74	48.62	36.25	34.98
2016	35.73	38.57	39.20	45.79	49.48	52.18	55.45	58.35	51.08	44.76	42.11	29.30
2017	30.74	31.63	35.65	39.84	46.69	51.68	56.44	60.94	55.35	44.89	37.21	33.14
2018	35.79	32.62	36.07	41.28	50.15	50.78	59.83	59.15	51.47	45.41	40.67	35.34
2019	36.98	26.74	37.08	41.72	49.87	51.77	55.93	58.47	52.15	41.76	39.18	36.45
2020	34.12	33.69	34.65	41.49	47.47	50.55	55.69	56.13	55.67	44.70	37.74	36.83
2021	35.65	31.63	35.77	42.32	46.01	56.12	59.49	58.54	51.49	42.68	39.09	28.51
2022	33.83	34.40	37.83	36.04	42.55	50.60	58.54	61.03	55.89	50.40	33.61	29.86
2023	35.99	32.10	34.50	38.19	51.53	52.12	58.06	59.72	52.03	45.03	38.31	38.47
2024	33.55	35.70	37.58	38.95	45.37	49.81	60.12	57.27	53.15	44.13	40.78	M

Average Daily Temperature (high+low)/2 [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	51.00	59.11	58.20	M	M	M	M	M	M
1996	M	M	M	M	48.62	56.14	64.90	63.87	54.48	46.57	38.06	33.38
1997	36.17	39.31	39.33	46.44	56.15	56.27	62.98	65.67	59.04	48.22	44.21	39.59
1998	37.21	41.54	43.91	47.62	53.77	59.97	66.25	65.38	60.93	49.61	42.50	38.00
1999	38.22	37.58	39.67	46.50	48.80	54.59	60.77	65.00	58.28	49.39	43.63	39.98
2000	36.19	39.86	41.41	47.66	51.50	58.58	62.27	62.45	58.02	49.56	39.40	36.86
2001	38.85	36.85	41.23	44.65	50.04	52.12	58.49	59.26	54.90	47.46	42.23	36.55
2002	37.39	37.23	36.75	44.23	48.55	57.14	60.73	61.32	53.68	47.03	44.26	38.51
2003	25.04	31.95	41.59	42.56	49.03	57.88	60.82	58.87	57.07	49.40	38.37	37.29
2004	M	42.83	M	M	M	70.10	66.48	66.99	56.10	49.96	41.59	39.92
2005	30.24	40.16	44.70	47.93	55.42	57.28	63.42	M	52.35	49.64	40.73	38.64
2006	40.45	36.11	37.89	45.29	53.16	59.20	62.35	63.24	59.85	47.35	41.84	39.37
2007	36.55	40.74	42.10	45.19	51.24	56.04	65.61	63.04	56.70	47.30	40.35	35.81
2008	34.45	39.19	38.49	41.74	52.86	55.80	63.21	62.03	M	M	M	M
2009	M	M	39.10	46.14	52.37	61.27	68.08	64.95	60.47	48.33	41.84	36.05
2010	41.61	42.65	42.65	45.34	49.80	55.38	64.01	65.51	57.20	50.54	38.87	37.87
2011	37.06	33.75	39.69	41.27	49.57	56.18	61.52	64.79	61.07	47.79	38.53	36.72
2012	35.23	38.29	38.33	45.85	50.87	53.57	62.70	65.98	62.10	49.37	41.71	36.04
2013	35.94	38.46	42.27	46.12	53.76	58.33	65.88	64.62	59.23	49.16	41.18	34.64
2014	39.32	33.56	41.19	46.73	55.31	58.00	66.46	67.51	61.23	52.79	41.38	39.09
2015	41.15	44.49	45.71	46.12	57.24	64.67	68.14	65.88	55.53	52.93	40.15	37.56
2016	38.24	41.92	43.93	52.20	56.58	59.56	62.84	66.11	57.18	48.19	45.00	32.26
2017	33.82	35.25	39.67	44.90	53.45	58.54	64.53	69.00	61.82	49.84	40.39	36.17
2018	38.72	36.26	41.21	46.29	57.67	58.05	68.25	66.68	57.22	50.45	44.00	38.25
2019	39.89	30.84	43.18	47.44	57.13	59.57	63.43	65.65	57.26	46.19	42.66	38.96
2020	37.48	38.13	39.85	47.69	54.21	56.94	63.11	63.86	62.14	49.36	41.04	39.93
2021	38.53	35.68	40.96	49.16	52.79	64.62	68.29	66.55	57.75	46.74	42.44	31.65
2022	36.96	38.44	42.20	41.85	48.23	57.44	66.19	69.17	63.47	56.48	37.73	32.91
2023	38.53	35.92	39.50	43.61	59.24	60.64	67.23	67.75	59.30	50.04	41.72	41.70
2024	36.57	39.33	42.52	45.65	52.41	57.32	68.62	64.52	59.76	49.13	43.77	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
1995	M	M	M	85.7%	60.1%	63.0%	M	M	M	M	M	M
1996	M	M	M	M	52.6%	M	M	M	M	M	M	M
1997	M	M	M	M	M	M	M	M	M	M	M	M
1998	M	M	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	86.1%	94.9%	93.4%
2000	92.7%	87.6%	85.5%	78.9%	75.8%	70.5%	71.5%	71.2%	73.4%	81.2%	86.8%	86.2%
2001	85.0%	82.0%	79.9%	73.7%	69.7%	70.5%	63.7%	68.2%	70.9%	73.5%	78.5%	79.0%
2002	81.6%	75.3%	70.8%	63.3%	58.6%	47.7%	40.8%	36.6%	34.3%	46.5%	63.2%	70.3%
2003	70.2%	59.6%	76.5%	71.8%	62.5%	52.1%	52.9%	50.8%	55.3%	69.8%	64.8%	69.4%
2004	64.6%	46.1%	36.2%	25.4%	27.0%	28.4%	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	98.7%	M	M	M	M	M	M
2007	M	M	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	60.2%	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	M	M	M	M	M
2018	88.6%	78.3%	73.9%	70.9%	61.6%	61.7%	49.8%	57.5%	74.5%	78.2%	87.1%	89.9%
2019	85.5%	81.5%	68.2%	73.2%	67.8%	63.5%	82.9%	91.2%	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	38.6%	59.9%	75.2%	86.4%	92.1%	91.2%
2022	92.2%	82.3%	83.7%	78.7%	76.8%	72.6%	68.3%	61.2%	57.1%	69.4%	82.6%	93.3%
2023	91.2%	85.7%	78.2%	80.8%	63.9%	62.5%	54.4%	59.3%	68.3%	83.6%	88.8%	93.3%
2024	93.1%	86.4%	83.7%	71.0%	70.9%	67.7%	58.6%	73.7%	80.4%	89.6%	94.0%	M