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	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	M	M	M
2000	0.03	0.00	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2001	2.97	1.55	0.02	0.78	0.95	0.78	0.42	1.78	0.78	1.82	4.18	4.18
2002	0.85	0.01	0.08	0.30	0.04	0.01	0.00	0.00	0.00	0.00	0.01	0.27
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	0.15	0.00	0.42	1.87	0.42	2.48	1.60	1.10	1.56	2.60	2.93	5.50
2008	4.57	1.31	1.54	1.10	0.23	0.44	1.07	1.11	0.58	2.70	3.21	2.96
2009	1.58	1.07	1.81	0.78	1.34	0.49	0.43	0.51	2.27	4.13	8.62	2.19
2010	5.44	2.54	2.48	2.46	2.27	0.39	0.07	0.98	2.85	1.56	4.66	5.50
2011	3.51	1.92	4.72	0.86	2.57	0.71	1.72	0.14	0.44	2.10	4.47	1.66
2012	3.26	2.18	4.21	2.00	1.53	3.55	0.89	0.45	0.12	4.52	3.50	4.89
2013	1.92	1.29	1.87	1.11	2.24	1.27	0.01	1.17	2.79	0.67	2.72	0.71
2014	2.56	2.19	3.18	1.22	1.40	0.39	1.17	0.36	1.62	4.45	2.54	4.01
2015	2.13	4.14	1.34	0.79	0.29	0.50	0.48	0.88	1.25	2.52	2.83	6.67
2016	3.76	3.22	5.59	0.84	0.82	2.07	0.84	0.91	2.40	6.93	5.05	4.08
2017	1.35	4.08	2.89	2.96	1.19	0.73	0.04	0.12	1.51	2.45	5.71	3.19
2018	7.65	2.43	1.40	2.92	0.15	1.22	0.26	0.05	3.86	2.59	3.73	5.34
2019	4.17	1.72	0.08	2.46	0.49	0.51	1.58	0.63	3.92	2.58	2.31	2.39
2020	6.87	1.76	M	M	M	M	M	M	M	2.38	5.33	4.45
2021	5.06	1.22	0.96	0.75	0.79	1.33	0.01	0.26	3.80	3.78	8.34	3.91
2022	3.25	1.51	1.82	3.36	2.08	2.04	1.06	0.03	0.02	1.02	2.17	3.76
2023	3.02	1.73	1.14	1.44	0.78	0.80	0.36	0.76	0.97	5.29	3.03	5.00
2024	6.23	2.92	3.14	1.08	1.62	1.52	0.41	0.97	1.22	4.23	6.06	4.33
2025	M	M	M	0.13	1.79	0.18	M	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	6.7	13.7	12.4	M	M	M	M	M	M
1996	M	M	M	M	11.2	9.1	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	M	M	M
2000	M	11.4	13.5	10.7	11.3	12.9	11.0	11.2	9.6	13.6	11.8	12.4
2001	12.3	12.4	12.7	11.7	11.5	10.1	11.3	12.2	12.4	13.6	15.7	16.1
2002	13.9	13.9	11.7	12.0	11.0	12.3	12.1	12.6	13.2	9.9	13.7	15.3
2003	13.4	10.4	14.2	12.7	10.7	12.6	11.6	10.9	11.5	13.3	12.7	15.7
2004	14.8	10.2	12.8	10.4	10.0	11.5	13.2	11.2	11.9	13.0	15.7	12.5
2005	13.2	10.8	12.7	13.3	12.0	10.1	13.0	11.8	11.0	13.6	13.4	13.4
2006	15.9	12.8	13.2	12.1	11.9	11.6	12.2	12.9	11.8	12.3	15.6	16.9
2007	15.9	13.7	15.3	10.9	11.5	10.0	12.0	10.0	12.8	13.8	13.4	15.8
2008	15.7	11.9	12.1	10.3	11.6	11.2	11.6	12.5	11.7	13.2	15.0	16.8
2009	13.7	11.4	14.9	12.5	11.3	11.5	11.6	9.3	11.2	6.2	0.0	0.0
2010	0.0	11.8	12.0	14.0	4.6	2.7	14.0	11.6	11.5	13.7	15.0	17.1
2011	13.9	15.0	14.6	12.4	11.1	10.7	9.9	10.7	12.2	11.8	15.4	13.4
2012	17.0	14.3	14.2	11.1	11.5	10.6	10.0	10.6	10.0	12.5	14.6	15.1
2013	10.2	13.4	11.7	11.9	10.5	10.1	12.6	9.4	10.0	10.7	11.7	13.2
2014	11.1	12.5	13.3	12.1	9.7	12.4	11.5	11.4	10.5	12.6	13.2	13.5
2015	11.0	11.1	12.2	11.5	10.2	12.9	12.9	12.5	12.6	11.0	13.8	17.6
2016	13.1	11.9	13.5	11.1	11.6	10.7	12.2	13.3	11.3	14.7	16.7	15.2
2017	13.6	11.7	13.9	12.9	11.1	11.7	10.9	11.4	10.1	12.2	16.7	10.2
2018	14.7	13.7	9.0	12.1	10.7	12.1	12.5	10.6	12.2	11.3	12.8	17.7
2019	13.0	12.4	9.7	14.3	12.3	11.7	10.5	11.3	11.8	13.6	11.2	16.2
2020	19.2	13.1	M	M	M	M	M	M	3.9	12.9	16.7	15.3
2021	16.2	15.0	14.3	11.7	10.7	11.5	10.9	13.1	12.3	15.2	15.4	14.7
2022	14.3	12.7	14.1	12.4	11.8	11.7	10.7	11.7	10.5	11.7	13.8	14.5
2023	15.0	15.6	10.8	14.6	10.3	12.4	11.2	12.3	12.0	12.0	11.7	15.1
2024	15.3	10.7	12.2	12.1	12.8	10.4	12.5	11.1	11.3	12.1	16.6	13.9
2025	M	M	M	14.0	11.0	13.9	M	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	56.00	61.93	62.80	M	M	M	M	M	M
1996	M	M	M	M	55.68	61.97	66.48	66.00	59.50	53.45	45.00	43.72
1997	41.53	44.00	45.73	51.41	59.29	62.27	66.90	68.13	62.85	54.87	50.03	46.97
1998	45.26	48.82	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	M	M	M
2000	M	46.53	49.53	54.44	57.29	64.78	68.74	67.86	63.97	56.97	49.00	45.96
2001	47.72	46.06	50.00	51.88	M	M	M	M	M	M	M	45.63
2002	46.76	47.04	45.81	54.62	59.48	67.76	71.07	70.88	65.20	55.98	52.43	49.63
2003	49.71	47.12	51.53	54.30	61.44	69.02	73.09	72.17	67.40	60.06	50.08	49.90
2004	M	49.20	M	M	M	71.46	71.57	71.44	62.70	57.93	50.33	44.22
2005	43.10	45.00	50.40	54.55	60.68	63.46	67.87	M	56.10	55.28	46.94	45.69
2006	46.88	42.86	44.04	48.87	55.80	61.59	64.44	64.81	59.65	50.71	45.07	43.70
2007	43.37	48.35	48.86	51.60	59.01	62.50	68.71	67.68	61.79	53.57	47.94	44.05
2008	42.95	45.43	46.91	49.80	58.57	61.91	67.44	66.75	58.19	M	M	M
2009	M	M	M	M	M	M	80.77	68.09	63.04	54.08	48.41	41.09
2010	46.96	47.45	49.67	52.37	56.82	61.50	69.06	69.79	61.45	54.54	46.08	44.87
2011	44.01	41.96	46.71	49.12	55.02	62.92	66.33	69.02	63.58	52.67	46.15	43.59
2012	42.83	43.39	45.41	50.86	56.85	60.33	68.52	68.39	62.35	52.72	47.82	43.46
2013	41.21	45.02	48.09	52.26	58.69	64.10	70.80	67.95	63.66	52.23	47.58	42.23
2014	43.71	41.54	46.66	52.20	60.88	64.25	70.04	71.35	64.33	56.63	48.00	45.89
2015	45.67	48.44	50.10	53.10	63.30	69.07	70.25	68.81	60.21	56.38	47.39	45.48
2016	44.29	47.38	49.88	56.17	62.62	65.10	68.34	69.21	61.08	53.84	51.18	41.02
2017	42.01	42.62	46.44	50.86	59.51	64.52	69.25	70.21	64.54	54.61	47.83	41.34
2018	45.26	43.21	46.76	52.09	63.09	63.86	70.95	70.02	60.79	53.89	49.60	46.25
2019	45.26	39.12	48.02	53.13	62.46	66.19	68.52	68.87	61.88	52.52	48.52	45.45
2020	44.74	43.79	M	M	M	M	M	M	64.80	54.79	48.58	45.83
2021	45.06	42.82	47.43	54.07	59.63	68.48	72.36	70.20	61.81	52.82	48.40	40.55
2022	42.52	44.17	47.78	49.99	55.47	63.49	70.51	72.42	65.37	58.24	44.31	40.95
2023	44.86	43.77	46.66	50.25	65.15	66.19	69.40	69.69	62.62	54.68	48.25	47.53
2024	43.85	44.81	47.87	52.15	58.85	63.86	71.15	68.92	63.36	54.37	48.40	47.27
2025	M	M	M	56.18	59.41	63.75	M	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	52.50	53.41	55.00	M	M	M	M	M	M
1996	M	M	M	M	48.65	55.62	59.21	60.48	55.29	49.45	42.17	40.39
1997	38.76	40.54	42.07	45.79	53.74	56.53	60.90	62.37	57.69	51.13	47.07	43.90
1998	41.63	46.64	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	M	M	M
2000	M	41.89	43.75	47.92	50.83	56.47	60.81	60.47	57.17	51.32	44.31	40.76
2001	43.40	40.68	43.43	44.44	M	M	M	M	M	M	M	41.87
2002	41.13	40.99	39.53	46.18	50.99	58.37	62.26	62.32	58.28	50.56	47.23	43.82
2003	7.16	26.62	44.74	44.41	52.77	59.64	63.01	63.43	59.41	53.36	43.31	43.50
2004	M	47.55	M	M	M	68.49	67.76	69.27	61.59	56.61	48.71	42.89
2005	38.64	38.81	44.77	47.19	53.83	56.64	60.53	M	54.00	50.93	42.83	41.39
2006	41.92	40.12	41.34	47.52	54.22	59.93	62.76	62.88	59.06	50.03	43.44	42.43
2007	38.42	42.17	42.39	44.83	50.73	55.22	60.96	60.38	55.59	47.89	42.92	38.85
2008	37.91	40.39	40.68	42.16	50.88	54.61	59.55	59.44	48.47	M	M	M
2009	M	M	M	M	M	M	71.43	60.24	55.57	48.43	43.22	36.43
2010	43.03	42.69	42.13	44.99	48.89	53.36	57.41	60.86	54.84	49.68	40.65	40.37
2011	38.45	36.58	41.11	42.06	48.37	55.24	58.50	60.63	56.72	48.12	40.67	39.76
2012	37.70	39.61	39.10	44.32	49.24	53.09	59.70	61.23	55.58	47.99	43.68	39.14
2013	37.82	41.19	41.93	45.82	51.61	56.87	61.46	61.21	57.15	47.85	43.15	37.78
2014	39.75	35.97	41.48	45.10	53.28	56.15	61.71	63.66	57.45	51.89	42.13	41.54
2015	41.31	43.70	44.42	45.27	54.67	59.89	61.71	61.03	53.69	51.52	41.85	40.62
2016	40.12	42.46	44.26	48.82	52.88	57.14	60.70	61.01	54.30	49.56	46.20	35.70
2017	37.33	36.50	40.76	45.00	51.02	55.52	61.19	62.19	57.36	48.45	43.09	37.03
2018	40.24	37.83	40.69	45.50	54.61	55.97	62.03	62.36	54.70	48.16	44.97	41.01
2019	40.33	33.27	40.63	46.44	53.30	57.92	60.55	62.06	56.28	46.95	43.50	41.86
2020	39.23	38.79	M	M	M	M	M	M	58.80	49.20	43.10	41.32
2021	40.78	37.71	41.20	45.94	51.12	59.09	63.64	62.14	55.25	47.66	43.45	34.30
2022	38.25	39.50	42.50	41.71	47.96	55.88	62.28	64.04	58.23	52.67	39.27	35.63
2023	40.95	38.01	40.38	43.26	55.13	57.00	61.15	61.75	55.74	48.52	43.12	43.64
2024	38.57	40.09	41.69	44.91	50.68	55.65	61.86	61.77	57.23	48.82	43.58	42.49
2025	M	M	M	49.38	51.30	55.63	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
1995	M	M	M	54.25	57.67	58.90	M	M	M	M	M	M
1996	M	M	M	M	52.16	58.79	62.84	63.24	57.39	51.45	43.59	42.06
1997	40.15	42.27	43.90	48.60	56.52	59.40	63.90	65.25	60.27	53.00	48.55	45.43
1998	43.45	47.73	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	M	M	M
2000	M	44.21	46.64	51.18	54.06	60.63	64.77	64.16	60.57	54.15	46.66	43.36
2001	45.56	43.37	46.71	48.16	M	M	M	M	M	M	M	43.75
2002	43.95	44.01	42.67	50.40	55.24	63.06	66.67	66.60	61.74	53.27	49.83	46.73
2003	28.44	36.87	48.13	49.36	57.11	64.33	68.05	67.80	63.41	56.71	46.69	46.70
2004	M	48.38	M	M	M	69.98	69.67	70.35	62.14	57.27	49.52	43.55
2005	40.87	41.91	47.59	50.87	57.26	60.05	64.20	M	55.05	53.10	44.89	43.54
2006	44.40	41.49	42.69	48.19	55.01	60.76	63.60	63.84	59.35	50.37	44.26	43.06
2007	40.89	45.26	45.63	48.22	54.87	58.86	64.84	64.03	58.69	50.73	45.43	41.45
2008	40.43	42.91	43.80	45.98	54.72	58.26	63.50	63.09	53.33	M	M	M
2009	M	M	M	M	M	M	76.10	64.16	59.31	51.26	45.82	38.76
2010	45.00	45.07	45.90	48.68	52.85	57.43	63.32	65.33	58.15	52.11	43.37	42.62
2011	41.23	39.27	43.91	45.59	51.70	59.08	62.42	64.83	60.15	50.39	43.41	41.67
2012	40.26	41.50	42.25	47.59	53.05	56.71	64.11	64.81	58.96	50.35	45.75	41.30
2013	39.52	43.11	45.01	49.04	55.15	60.49	66.13	64.58	60.40	50.04	45.36	40.00
2014	41.73	38.75	44.07	48.65	57.08	60.20	65.87	67.51	60.89	54.26	45.06	43.71
2015	43.49	46.07	47.26	49.18	58.99	64.48	65.98	64.92	56.95	53.95	44.62	43.05
2016	42.21	44.92	47.07	52.50	57.75	61.12	64.52	65.11	57.69	51.70	48.69	38.36
2017	39.67	39.56	43.60	47.93	55.27	60.02	65.22	66.20	60.95	51.53	45.46	39.18
2018	42.75	40.52	43.72	48.79	58.85	59.92	66.49	66.19	57.74	51.03	47.28	43.63
2019	42.79	36.20	44.33	49.78	57.88	62.05	64.54	65.47	59.08	49.73	46.01	43.66
2020	41.98	41.29	M	M	M	M	M	M	61.80	52.00	45.84	43.57
2021	42.92	40.27	44.32	50.01	55.38	63.78	68.00	66.17	58.53	50.24	45.92	37.43
2022	40.39	41.84	45.14	45.85	51.71	59.69	66.40	68.23	61.80	55.45	41.79	38.29
2023	42.90	40.89	43.52	46.75	60.14	61.59	65.27	65.72	59.18	51.60	45.69	45.59
2024	41.21	42.45	44.78	48.53	54.76	59.76	66.51	65.35	60.29	51.60	45.99	44.88
2025	M	M	M	52.78	55.35	59.69	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
1995	M	M	M	91.5%	78.7%	81.9%	M	M	M	M	M	M
1996	M	M	M	M	85.1%	86.4%	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	M	M	M
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	M	M	M	M	M	M	M	M	M	M	M	87.9%
2002	89.9%	83.8%	84.0%	82.0%	78.4%	79.0%	77.9%	80.1%	83.5%	91.6%	97.1%	95.3%
2003	85.2%	80.8%	81.5%	M	M	M	74.1%	76.0%	81.8%	87.0%	80.4%	86.7%
2004	89.9%	91.1%	83.2%	77.6%	75.6%	73.3%	77.9%	84.2%	85.2%	87.7%	91.0%	89.6%
2005	87.0%	82.7%	84.4%	79.2%	81.8%	80.4%	78.9%	80.4%	82.9%	90.1%	86.8%	87.9%
2006	87.3%	74.0%	80.4%	81.1%	76.2%	77.6%	78.1%	78.8%	83.2%	85.5%	86.7%	86.7%
2007	90.1%	90.3%	85.9%	83.6%	80.2%	80.8%	84.0%	83.2%	86.0%	91.3%	89.5%	88.5%
2008	89.2%	93.0%	83.5%	76.6%	83.1%	81.6%	82.3%	87.3%	87.6%	M	M	M
2009	M	M	M	M	M	M	67.2%	76.5%	79.4%	72.6%	M	M
2010	M	86.2%	78.2%	74.7%	71.7%	73.1%	70.8%	73.5%	84.1%	83.6%	82.0%	81.7%
2011	84.8%	77.1%	81.3%	73.6%	77.3%	75.2%	76.6%	74.6%	80.1%	85.1%	81.1%	84.0%
2012	81.1%	84.9%	78.2%	80.9%	72.8%	78.5%	77.6%	76.1%	78.7%	84.6%	85.6%	84.2%
2013	87.0%	84.7%	81.7%	76.2%	79.0%	78.8%	72.6%	80.3%	82.6%	85.7%	82.0%	81.1%
2014	88.6%	75.5%	82.7%	77.4%	76.9%	73.2%	73.0%	73.9%	79.1%	86.9%	79.7%	82.6%
2015	89.7%	87.2%	82.7%	72.1%	73.1%	68.0%	72.1%	77.2%	82.8%	88.6%	82.9%	84.2%
2016	89.3%	88.4%	82.5%	79.9%	72.2%	73.4%	76.3%	75.4%	80.8%	87.4%	86.0%	80.0%
2017	76.2%	81.0%	81.6%	81.6%	77.6%	73.3%	71.8%	75.9%	79.1%	81.7%	81.5%	87.0%
2018	87.2%	79.5%	81.5%	78.7%	74.5%	75.2%	74.5%	75.7%	84.2%	87.7%	87.8%	83.8%
2019	87.1%	76.9%	76.3%	77.4%	76.2%	72.5%	78.8%	79.5%	84.6%	79.7%	86.5%	88.9%
2020	86.6%	83.2%	M	M	M	M	M	M	89.5%	84.1%	81.7%	88.0%
2021	89.8%	82.1%	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	70.3%	82.6%	86.4%
2024	84.1%	80.8%	81.0%	72.6%	74.0%	74.3%	74.3%	85.4%	87.4%	92.3%	92.5%	94.8%
2025	M	M	M	86.5%	81.5%	83.1%	M	M	M	M	M	M