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
1996	M	M	M	M	M	M	0.00	0.00	M	M	M	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2001	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	M
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	0.00	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	M	M	M	M
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	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	0.00	0.00	M	M	M	M	M
2017	M	M	M	M	M	M	0.00	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	M	M	M
2021	M	M	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	M	M	M
2024	M	M	M	M	M	M	M	M	M	M	M	M
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
1996	M	M	M	M	M	M	6.5	6.4	M	M	M	6.0
1997	5.6	8.2	7.2	7.8	6.8	7.2	6.7	5.4	5.5	7.5	8.8	9.0
1998	9.3	6.8	9.4	7.8	6.7	7.2	7.1	6.2	6.6	8.2	6.8	8.5
1999	8.6	8.7	7.9	7.4	7.6	6.7	7.3	6.5	6.2	7.5	6.8	9.6
2000	7.4	8.8	8.4	6.3	6.4	6.7	6.9	5.2	5.8	7.4	8.0	8.9
2001	6.9	7.5	7.5	7.3	7.0	6.6	6.8	5.8	7.4	6.5	5.6	7.3
2002	8.4	10.9	7.1	7.0	6.5	6.2	6.3	4.9	4.9	7.1	6.2	7.5
2003	7.8	6.9	6.1	7.4	6.7	5.7	5.9	5.1	4.8	6.4	7.2	7.4
2004	8.4	8.0	7.3	6.5	5.6	6.9	6.1	6.5	6.7	6.5	6.1	6.0
2005	9.0	8.0	7.6	6.7	7.1	6.2	6.6	6.2	5.6	6.9	7.2	7.8
2006	7.1	7.4	8.6	7.8	8.3	6.2	5.7	6.8	5.8	7.5	8.5	9.1
2007	11.0	8.6	8.9	6.7	8.3	7.3	8.7	7.3	7.4	5.4	8.3	8.1
2008	10.2	7.7	10.0	7.7	6.6	7.4	7.6	7.7	6.9	5.8	8.0	6.3
2009	6.7	7.5	8.6	6.5	7.4	7.5	7.6	6.2	6.4	7.2	9.4	7.2
2010	7.1	8.2	8.0	7.3	7.5	6.6	6.1	7.1	6.4	6.8	7.4	6.8
2011	6.8	8.0	6.5	6.4	7.8	7.3	7.5	7.2	6.7	7.2	6.6	10.2
2012	9.4	7.9	6.2	7.1	7.0	7.4	6.6	6.4	5.7	6.3	6.9	8.7
2013	7.6	7.6	8.2	7.6	7.5	7.7	6.0	5.8	5.6	7.1	6.5	8.1
2014	7.8	9.5	6.7	6.2	6.6	6.2	6.1	6.2	4.8	6.1	6.4	9.0
2015	9.2	7.0	7.7	6.9	7.2	7.4	7.4	5.8	6.4	5.1	8.2	7.5
2016	8.5	8.8	7.5	6.9	7.4	5.6	6.3	6.0	5.1	5.4	6.6	5.4
2017	6.0	8.2	7.9	6.7	6.2	6.6	6.6	5.3	5.5	7.3	6.4	7.5
2018	8.2	7.8	6.9	6.4	6.0	6.9	6.2	5.9	5.1	6.1	6.5	7.5
2019	8.5	6.3	9.1	6.2	6.2	5.8	5.4	5.2	5.8	6.4	5.9	7.5
2020	7.4	11.0	9.0	5.9	6.0	5.8	6.0	5.9	5.0	6.9	6.4	6.7
2021	7.0	7.2	7.3	6.5	7.0	5.3	5.5	5.9	4.2	6.1	5.1	6.4
2022	6.9	10.7	6.0	7.7	5.6	5.1	5.7	5.0	4.7	5.1	6.7	6.5
2023	8.2	6.5	7.8	7.1	6.2	5.8	6.2	4.9	4.6	6.1	7.9	8.9
2024	7.9	7.9	6.7	6.9	4.9	5.4	5.3	4.7	5.6	5.1	6.1	7.3
2025	6.7	6.2	5.5	5.2	6.3	6.0	5.6	5.0	6.1	6.2	5.5	6.2
2026	7.2	8.0	5.8	5.6	5.2	5.5	6.4	5.8	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1996	M	M	M	M	M	M	74.14	74.12	M	M	M	35.72
1997	33.63	49.10	53.83	55.16	64.46	70.30	73.34	80.37	68.66	57.72	47.72	43.96
1998	44.43	49.94	52.08	55.76	68.75	69.98	69.39	72.38	65.96	54.59	43.16	42.63
1999	45.44	41.58	52.55	58.70	68.12	69.74	77.81	73.57	73.70	58.01	47.18	43.32
2000	42.74	47.83	49.83	60.80	68.93	72.62	67.54	74.79	68.48	58.83	51.44	44.89
2001	42.34	45.89	48.03	54.08	69.05	68.84	75.26	77.23	62.48	65.21	47.90	40.42
2002	42.80	50.26	52.85	57.92	65.79	72.62	73.11	74.79	66.92	56.30	51.86	41.24
2003	39.08	42.99	56.21	59.54	65.97	77.12	78.39	79.32	70.64	52.61	52.04	43.88
2004	41.30	44.66	50.93	60.62	63.24	69.74	72.20	76.71	69.14	60.39	47.60	39.82
2005	44.36	39.52	51.05	59.78	65.56	73.40	74.39	70.55	71.42	65.27	48.32	41.42
2006	38.36	39.65	45.59	56.42	66.95	73.70	85.48	69.10	74.54	64.23	53.48	46.58
2007	47.66	48.52	54.65	68.54	67.54	73.10	72.94	72.14	65.18	57.90	48.08	42.56
2008	46.57	49.19	48.84	56.60	71.95	72.86	74.27	72.94	65.30	57.66	48.68	40.64
2009	M	M	M	M	M	M	M	M	M	M	57.20	M
2010	41.00	M	M	M	51.80	M	M	60.80	M	M	46.40	33.26
2011	41.75	44.96	53.87	66.87	69.03	71.37	70.64	70.20	69.98	60.68	52.52	46.04
2012	43.94	37.96	55.34	55.64	68.23	67.34	72.65	76.59	66.56	58.30	49.10	43.83
2013	38.60	38.17	42.74	56.72	62.14	69.98	77.64	75.84	66.86	61.15	47.42	46.76
2014	46.58	49.81	58.13	63.26	63.76	70.76	76.42	69.86	69.38	62.89	51.86	43.64
2015	42.98	43.20	50.99	58.94	64.81	71.12	76.25	76.30	64.22	56.04	54.44	53.04
2016	44.36	45.84	48.55	56.84	67.42	72.14	75.78	75.26	75.32	56.10	47.72	44.02
2017	38.42	47.81	56.97	56.00	69.74	75.68	75.08	73.34	65.72	61.73	49.22	42.86
2018	46.70	38.56	47.78	66.39	73.40	73.52	83.45	78.16	70.28	63.53	50.42	46.72
2019	40.40	52.44	53.89	61.88	62.14	77.72	77.58	77.35	68.36	60.45	48.68	46.52
2020	46.52	50.06	52.55	65.12	66.95	73.82	73.28	80.66	70.88	58.42	54.08	45.94
2021	41.70	46.91	52.55	53.36	61.44	75.98	73.34	70.79	70.88	60.92	48.50	45.82
2022	43.79	49.81	55.98	57.74	69.92	75.20	77.23	81.12	67.76	65.39	53.84	43.38
2023	45.70	48.20	51.97	56.48	67.13	78.80	75.26	73.81	75.20	63.59	50.54	47.62
2024	42.97	52.11	55.98	59.90	69.22	70.88	74.97	77.70	70.04	60.68	49.76	45.35
2025	42.10	45.37	56.85	63.32	68.46	76.70	76.77	77.17	68.72	58.13	50.90	46.98
2026	41.17	49.23	57.03	62.30	68.23	78.38	79.85	87.20	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1996	M	M	M	M	M	M	55.40	57.49	M	M	M	29.72
1997	25.26	39.07	41.00	39.14	48.61	55.28	57.43	60.16	49.58	43.15	39.68	37.92
1998	36.99	37.08	40.54	43.70	52.44	55.64	55.92	54.32	53.60	45.30	34.52	36.18
1999	38.06	33.09	39.61	43.22	50.58	52.16	59.12	56.39	57.02	45.35	38.12	36.53
2000	35.37	37.40	39.72	43.88	52.09	54.08	55.57	56.50	54.80	47.21	41.48	38.68
2001	32.93	36.44	38.50	41.60	51.28	52.40	58.36	58.42	51.38	52.38	38.60	32.87
2002	35.72	40.87	38.79	41.06	50.58	56.66	57.61	59.87	50.48	44.18	42.02	35.30
2003	32.42	29.24	37.92	39.86	49.42	56.30	57.20	58.65	48.80	39.37	42.68	35.42
2004	34.64	36.78	36.01	43.28	47.04	54.08	56.60	59.70	52.16	47.62	38.00	32.43
2005	37.28	32.19	39.49	43.94	49.13	56.06	58.88	53.54	53.00	48.95	39.56	34.64
2006	29.06	33.16	34.90	41.96	50.64	55.88	64.11	56.04	56.36	51.28	42.68	39.50
2007	40.94	39.46	38.62	44.36	51.63	58.52	57.61	55.70	50.78	43.67	39.14	34.94
2008	39.14	35.23	38.74	40.58	51.63	56.18	58.01	57.90	49.16	44.48	39.74	32.72
2009	M	M	M	M	M	M	M	M	M	M	57.20	M
2010	41.00	M	M	M	51.80	M	M	59.90	M	M	42.80	25.94
2011	34.15	35.93	36.26	46.33	51.32	56.47	57.77	57.40	55.10	46.34	40.40	39.86
2012	37.22	29.77	41.52	42.80	54.35	56.78	59.81	60.68	50.90	45.65	40.82	37.79
2013	33.50	32.13	31.94	42.44	49.48	56.12	63.30	59.29	52.46	49.71	39.92	39.08
2014	38.36	39.78	40.07	47.12	51.97	57.26	62.54	57.49	54.56	51.57	43.34	38.24
2015	36.50	34.07	38.62	42.08	51.86	56.66	62.54	60.16	51.02	45.65	45.74	45.34
2016	37.10	36.53	37.46	43.04	53.89	59.30	62.60	59.41	55.76	45.53	39.26	35.15
2017	29.42	38.24	42.80	41.66	55.28	61.82	61.85	59.52	52.22	51.22	41.24	37.77
2018	39.44	28.66	35.46	49.87	56.74	60.86	65.15	61.50	51.74	47.10	40.40	39.91
2019	33.80	36.44	39.49	41.48	44.25	55.46	56.62	56.21	50.30	48.49	37.34	37.17
2020	37.52	38.70	37.69	41.36	43.85	54.56	54.59	60.39	49.70	47.91	40.52	36.30
2021	33.74	32.90	36.06	35.42	43.79	56.78	56.85	55.17	51.68	44.19	36.68	36.76
2022	36.24	37.01	34.44	40.52	48.90	52.40	56.15	57.32	50.18	47.33	41.42	33.86
2023	37.34	36.05	39.43	39.62	47.39	55.94	56.97	56.68	54.80	49.48	41.36	39.90
2024	33.39	42.43	42.39	45.08	52.26	53.36	57.90	59.58	53.06	47.10	39.56	36.76
2025	33.68	33.93	35.14	42.44	46.46	55.94	57.37	54.88	52.22	48.49	39.26	35.48
2026	32.35	38.30	36.94	40.04	48.84	58.46	58.07	56.60	M	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1996	M	M	M	M	M	M	64.77	65.81	M	M	M	32.72
1997	29.45	44.09	47.42	47.15	56.53	62.79	65.39	70.26	59.12	50.44	43.70	40.94
1998	40.71	43.51	46.31	49.73	60.60	62.81	62.66	63.35	59.78	49.94	38.84	39.40
1999	41.75	37.34	46.08	50.96	59.35	60.95	68.46	64.98	65.36	51.68	42.65	39.93
2000	39.05	42.61	44.77	52.34	60.51	63.35	61.55	65.65	61.64	53.02	46.46	41.78
2001	37.63	41.16	43.26	47.84	60.16	60.62	66.81	67.83	56.93	58.80	43.25	36.65
2002	39.26	45.56	45.82	49.49	58.19	64.64	65.36	67.33	58.70	50.24	46.94	38.27
2003	35.75	36.11	47.07	49.70	57.69	66.71	67.80	68.99	59.72	45.99	47.36	39.65
2004	37.97	40.72	43.47	51.95	55.14	61.91	64.40	68.20	60.65	54.01	42.80	36.13
2005	40.82	35.86	45.27	51.86	57.35	64.73	66.64	62.05	62.21	57.11	43.94	38.03
2006	33.71	36.40	40.25	49.19	58.80	64.79	74.79	62.57	65.45	57.75	48.08	43.04
2007	44.30	43.99	46.63	56.45	59.58	65.81	65.27	63.92	57.98	50.78	43.61	38.75
2008	42.86	42.21	43.79	48.59	61.79	64.52	66.14	65.42	57.23	51.07	44.21	36.68
2009	M	M	M	M	M	M	M	M	M	M	57.20	M
2010	41.00	M	M	M	51.80	M	M	60.35	M	M	44.60	29.60
2011	37.95	40.45	45.06	56.60	60.17	63.92	64.21	63.80	62.54	53.51	46.46	42.95
2012	40.58	33.86	48.43	49.22	61.29	62.06	66.23	68.64	58.73	51.97	44.96	40.81
2013	36.05	35.15	37.34	49.58	55.81	63.05	70.47	67.56	59.66	55.43	43.67	42.92
2014	42.47	44.79	49.10	55.19	57.87	64.01	69.48	63.67	61.97	57.23	47.60	40.94
2015	39.74	38.63	44.80	50.51	58.33	63.89	69.39	68.23	57.62	50.84	50.09	49.19
2016	40.73	41.19	43.00	49.94	60.65	65.72	69.19	67.33	65.54	50.81	43.49	39.59
2017	33.92	43.03	49.88	48.83	62.51	68.75	68.46	66.43	58.97	56.47	45.23	40.32
2018	43.07	33.61	41.62	58.13	65.07	67.19	74.30	69.83	61.01	55.31	45.41	43.31
2019	37.10	44.44	46.69	51.68	53.19	66.59	67.10	66.78	59.33	54.47	43.01	41.84
2020	42.02	44.38	45.12	53.24	55.40	64.19	63.94	70.53	60.29	53.16	47.30	41.12
2021	37.72	39.91	44.31	44.39	52.61	66.38	65.10	62.98	61.28	52.55	42.59	41.29
2022	40.01	43.41	45.21	49.13	59.41	63.80	66.69	69.22	58.97	56.36	47.63	38.62
2023	41.52	42.13	45.70	48.05	57.26	67.37	66.11	65.24	65.00	56.53	45.95	43.76
2024	38.18	47.27	49.19	52.49	60.74	62.12	66.43	68.64	61.55	53.89	44.66	41.06
2025	37.89	39.65	45.99	52.88	57.46	66.32	67.07	66.03	60.47	53.31	45.08	41.23
2026	36.76	43.76	46.98	51.17	58.54	68.42	68.96	71.90	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
1996	M	M	M	M	M	M	66.3%	71.8%	M	M	M	87.5%
1997	89.9%	85.3%	85.4%	72.3%	78.6%	73.8%	81.7%	76.5%	81.9%	83.9%	83.3%	83.6%
1998	80.5%	78.2%	76.9%	79.1%	70.6%	78.3%	76.9%	73.9%	84.8%	86.4%	88.1%	87.6%
1999	85.0%	88.9%	81.0%	77.9%	71.8%	73.3%	70.6%	75.3%	81.6%	85.7%	92.6%	90.4%
2000	91.1%	84.9%	88.5%	76.8%	78.1%	73.9%	88.7%	80.1%	90.3%	90.4%	89.5%	89.8%
2001	93.5%	89.9%	91.4%	84.8%	75.7%	79.7%	80.0%	78.7%	93.9%	91.6%	97.2%	96.4%
2002	93.3%	87.2%	85.5%	80.2%	81.0%	77.9%	77.7%	70.4%	75.3%	84.8%	95.7%	88.7%
2003	84.1%	74.4%	67.4%	58.0%	68.9%	57.5%	55.1%	59.2%	58.4%	82.7%	87.6%	85.8%
2004	86.7%	82.6%	73.1%	69.1%	73.4%	75.5%	77.3%	75.1%	75.9%	80.0%	89.8%	90.7%
2005	81.8%	82.0%	79.1%	74.6%	71.7%	68.9%	77.1%	80.2%	79.1%	81.5%	87.2%	87.0%
2006	80.2%	84.3%	75.9%	72.7%	70.6%	67.7%	62.8%	82.3%	78.9%	82.2%	85.1%	85.4%
2007	81.0%	86.7%	75.6%	62.9%	73.9%	76.6%	73.3%	79.1%	82.9%	87.1%	88.9%	89.4%
2008	83.1%	81.2%	80.0%	77.6%	69.8%	65.0%	61.0%	60.8%	82.0%	88.5%	88.2%	90.4%
2009	85.4%	85.6%	79.0%	73.9%	71.6%	72.9%	72.6%	71.7%	81.6%	86.4%	85.2%	89.0%
2010	91.6%	89.5%	79.5%	71.6%	81.7%	73.2%	72.0%	85.5%	89.3%	91.6%	97.1%	97.9%
2011	98.9%	83.9%	78.5%	69.0%	62.9%	75.6%	78.0%	83.9%	86.3%	85.3%	90.5%	88.2%
2012	84.4%	84.3%	87.6%	83.0%	77.4%	82.8%	82.3%	76.4%	80.8%	82.8%	81.8%	81.9%
2013	83.2%	80.8%	69.5%	67.5%	74.9%	71.2%	69.8%	70.5%	81.3%	83.4%	92.1%	89.8%
2014	87.9%	80.0%	77.1%	78.9%	80.9%	77.0%	80.7%	78.4%	83.3%	85.9%	87.2%	87.6%
2015	84.4%	85.8%	80.7%	73.0%	67.8%	67.8%	70.2%	77.7%	84.5%	90.5%	88.5%	89.9%
2016	91.7%	88.1%	86.2%	74.0%	67.7%	78.3%	70.7%	72.5%	72.5%	84.3%	84.1%	87.7%
2017	84.9%	81.3%	72.4%	71.0%	70.5%	65.1%	71.6%	77.9%	81.7%	83.9%	88.8%	91.7%
2018	87.7%	75.6%	76.9%	73.5%	66.5%	72.4%	55.6%	70.2%	73.0%	77.5%	83.3%	85.9%
2019	85.7%	76.7%	76.2%	66.3%	73.2%	68.3%	67.9%	72.8%	75.5%	83.9%	89.6%	85.8%
2020	86.5%	78.1%	68.6%	59.9%	61.7%	68.4%	71.0%	68.6%	75.8%	83.7%	84.9%	90.0%
2021	87.6%	78.4%	73.7%	69.4%	73.1%	73.0%	79.2%	81.4%	80.8%	84.3%	90.3%	89.6%
2022	89.2%	78.0%	64.3%	67.1%	68.5%	69.1%	65.6%	64.1%	79.4%	85.1%	84.5%	86.6%
2023	84.0%	80.9%	77.1%	73.0%	71.0%	60.8%	71.9%	81.6%	81.0%	83.6%	86.0%	86.2%
2024	80.3%	83.2%	77.1%	73.9%	79.3%	72.5%	73.1%	75.0%	80.1%	87.2%	86.7%	87.5%
2025	88.8%	79.4%	70.0%	69.1%	64.5%	65.9%	71.5%	69.6%	76.1%	83.4%	87.0%	86.4%
2026	85.6%	84.9%	74.4%	65.6%	72.0%	72.0%	62.6%	52.4%	M	M	M	M