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
1997	M	M	M	M	M	M	M	0.00	M	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	M	M	M	M	M	M	M	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	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
1997	M	M	M	M	M	M	M	5.6	M	10.4	5.9	9.1
1998	10.2	6.5	8.8	8.6	8.4	6.7	7.9	6.6	8.5	10.2	8.0	8.3
1999	9.4	9.8	8.4	9.0	7.4	7.6	8.5	7.6	7.4	8.6	7.3	11.5
2000	8.4	9.9	9.4	7.5	7.1	6.5	6.9	5.6	6.4	7.4	8.0	7.5
2001	9.1	9.2	10.6	8.6	9.7	7.2	8.2	8.0	8.5	6.5	9.0	11.3
2002	7.5	13.1	7.8	9.8	7.0	6.9	6.9	6.0	7.3	9.4	6.7	8.7
2003	9.9	8.0	8.0	9.0	7.9	6.2	6.3	5.8	6.3	9.3	5.8	7.8
2004	9.6	9.8	8.2	8.2	6.8	6.6	7.1	7.7	7.8	6.9	7.9	8.2
2005	10.4	8.5	7.4	6.8	7.0	6.6	7.3	6.2	6.8	5.7	6.6	8.6
2006	7.4	9.1	10.6	7.9	8.8	6.2	7.4	7.7	5.3	7.0	7.4	9.0
2007	13.3	8.5	7.9	7.9	9.1	8.0	8.0	6.5	5.6	6.6	8.2	9.7
2008	8.7	9.1	11.2	7.7	8.4	6.1	7.1	6.5	7.5	6.4	7.5	8.5
2009	6.8	7.4	9.2	6.6	6.4	6.7	6.6	5.2	6.6	5.9	8.2	8.0
2010	7.0	9.1	9.6	7.6	6.5	6.6	5.2	7.0	5.8	6.7	8.4	7.2
2011	8.0	6.7	8.9	6.5	6.8	7.6	6.1	5.7	5.6	6.1	4.3	11.8
2012	9.9	9.0	6.1	8.1	6.8	5.7	6.2	5.0	5.6	6.5	5.5	9.4
2013	8.4	8.0	7.9	8.7	7.1	6.1	7.0	4.6	6.9	6.4	8.3	6.5
2014	6.4	7.8	6.3	5.4	7.2	6.8	6.2	5.6	4.9	4.6	5.0	10.1
2015	9.5	6.8	8.4	6.8	5.4	6.3	5.9	5.5	7.2	5.4	8.9	6.2
2016	7.9	10.9	8.6	6.7	6.6	5.7	4.8	5.3	4.8	6.2	7.0	5.1
2017	7.4	7.7	8.6	5.8	5.5	6.2	6.8	4.7	5.8	6.1	7.8	10.0
2018	10.5	9.1	8.5	6.4	7.2	6.0	5.7	5.3	5.4	6.7	6.0	9.3
2019	8.9	6.2	10.5	7.8	6.4	5.9	6.2	5.0	6.7	7.5	7.4	7.8
2020	7.8	12.0	10.7	8.2	7.7	7.1	6.1	5.8	6.2	8.6	6.2	7.2
2021	9.3	7.7	7.4	8.2	9.1	6.0	6.3	5.9	5.7	5.7	7.3	8.2
2022	8.2	11.5	7.5	9.3	6.3	6.2	6.3	7.2	6.2	5.6	6.4	8.2
2023	11.2	8.5	9.3	7.9	7.9	7.3	6.9	6.2	5.3	7.0	10.5	9.7
2024	9.3	9.7	6.6	7.4	6.8	6.6	5.4	5.1	7.2	5.6	7.8	8.3
2025	8.6	6.3	6.5	8.1	7.6	7.4	6.1	6.4	7.1	8.6	5.3	6.5
2026	6.8	8.0	6.3	7.3	6.3	5.9	6.8	7.1	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	84.71	M	48.04	47.60	42.16
1998	42.92	50.45	53.02	59.12	70.85	74.54	73.98	78.14	66.56	57.43	42.08	41.23
1999	45.20	39.39	52.09	59.96	70.67	73.22	79.26	76.71	74.84	58.77	44.96	42.05
2000	41.35	48.88	52.03	62.72	71.37	77.60	71.48	78.45	69.56	59.41	51.68	45.47
2001	43.67	47.43	52.44	55.40	71.77	71.06	78.92	80.25	63.14	65.85	45.20	38.56
2002	38.37	50.00	54.47	59.78	66.95	78.62	76.19	76.13	67.10	59.99	51.32	44.14
2003	38.45	41.06	58.77	62.78	70.21	85.04	81.53	89.14	74.06	54.41	51.08	42.16
2004	40.36	45.84	51.68	63.20	67.01	74.42	76.71	78.34	69.86	60.74	46.46	37.81
2005	42.16	37.85	51.86	61.34	68.93	78.92	78.86	73.57	73.04	63.24	47.72	39.26
2006	34.03	39.59	47.45	59.36	68.81	77.78	88.79	71.02	74.96	64.86	52.64	46.75
2007	46.86	50.00	53.83	71.90	71.83	75.98	74.50	75.37	67.16	59.75	45.80	38.91
2008	46.11	50.12	49.94	57.08	74.50	75.92	78.86	76.07	65.36	59.35	49.16	39.14
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	64.40	M	M	46.40	33.45
2011	34.83	M	M	77.00	67.10	74.30	67.10	76.82	72.86	59.96	46.11	46.28
2012	43.10	36.84	58.94	58.52	71.60	73.58	74.72	79.09	70.22	58.07	48.91	43.44
2013	38.97	37.40	45.12	58.76	61.55	72.86	81.24	77.75	67.88	61.67	45.98	43.79
2014	45.94	49.87	58.77	64.76	67.19	77.24	77.64	72.01	70.16	63.99	49.88	42.10
2015	41.87	40.23	53.77	62.12	68.12	74.06	84.03	82.28	67.58	57.08	53.72	51.97
2016	43.96	47.46	50.06	58.04	67.25	73.40	78.97	79.55	76.10	57.26	47.72	38.62
2017	33.63	48.59	58.48	59.60	71.19	79.76	79.44	77.87	66.98	62.48	48.44	43.09
2018	48.32	37.85	49.07	69.08	72.65	78.38	84.20	82.98	75.68	64.05	49.58	45.18
2019	39.32	51.93	56.04	61.58	63.94	80.48	81.47	81.12	70.46	62.31	48.68	45.59
2020	44.89	53.17	54.35	69.62	69.57	74.60	81.59	82.86	74.36	59.35	50.24	44.72
2021	40.36	48.52	53.37	56.78	62.37	78.98	75.49	72.59	72.02	59.00	45.44	45.24
2022	42.80	50.39	57.14	59.36	74.04	80.66	84.20	85.65	69.80	67.36	53.00	42.92
2023	44.43	47.11	54.47	57.62	69.05	81.74	79.85	76.77	78.38	65.68	50.60	46.52
2024	43.26	53.04	56.45	61.10	68.58	74.54	78.39	81.35	69.20	61.03	48.32	42.51
2025	44.48	44.66	56.45	64.28	70.55	80.36	77.99	79.03	67.94	59.17	48.50	43.85
2026	39.55	49.10	56.56	64.58	71.77	83.12	85.71	90.76	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	63.60	M	32.98	35.36	35.37
1998	33.80	29.69	38.74	43.46	52.09	57.56	58.65	57.14	52.46	47.15	33.32	33.34
1999	34.58	31.10	39.61	43.52	51.51	54.32	61.21	58.65	55.28	44.08	34.94	34.32
2000	32.23	36.34	38.68	43.82	52.32	55.82	56.21	59.17	52.88	48.78	40.88	37.40
2001	32.06	35.09	41.64	40.88	52.79	52.28	59.29	59.87	49.40	49.65	34.88	28.75
2002	28.86	39.26	36.24	41.18	49.48	57.68	57.95	58.83	49.40	43.90	40.94	35.43
2003	28.28	24.61	35.89	40.70	51.80	62.12	59.00	61.44	48.14	39.90	37.82	31.54
2004	31.59	32.50	33.80	42.14	45.53	53.36	57.72	59.87	52.28	46.57	37.64	30.61
2005	31.94	28.21	34.38	42.74	49.13	56.42	59.23	55.17	53.78	46.40	34.88	31.19
2006	25.15	29.88	33.86	41.72	50.06	54.86	64.52	55.98	56.18	48.61	39.44	34.50
2007	38.39	36.24	36.65	43.40	52.44	58.34	57.66	56.62	47.90	42.28	35.12	32.29
2008	32.93	31.32	36.18	41.66	52.79	57.56	58.54	57.49	49.22	44.72	37.34	32.00
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	62.60	M	M	42.80	26.77
2011	28.01	M	M	73.40	55.40	71.15	60.80	56.84	51.44	42.74	37.82	37.46
2012	34.09	23.50	37.92	41.12	50.35	55.10	58.36	58.83	49.82	42.22	37.94	35.19
2013	32.12	28.53	30.49	43.22	47.79	54.80	60.86	56.33	52.28	47.10	37.64	32.75
2014	34.26	34.89	36.53	44.60	48.49	54.86	59.52	55.75	53.90	49.30	41.48	34.90
2015	33.51	28.91	34.50	39.92	49.30	55.64	61.44	59.70	50.42	43.55	41.78	38.74
2016	33.80	36.72	35.08	40.22	48.61	57.32	60.10	57.72	53.72	42.34	35.96	29.91
2017	22.59	33.99	38.85	39.68	50.87	58.40	60.80	58.77	49.88	45.70	37.82	34.96
2018	39.20	27.44	33.51	45.44	52.61	57.62	59.87	59.12	50.00	43.50	36.62	36.70
2019	30.61	31.16	38.79	41.66	45.94	58.16	59.64	58.48	51.74	48.26	37.34	34.73
2020	33.39	37.90	36.59	41.36	45.94	55.52	56.85	59.99	51.98	46.81	38.24	34.61
2021	32.41	31.68	34.32	36.74	45.47	59.06	58.71	57.32	52.40	42.57	36.38	34.90
2022	31.13	36.63	33.16	40.04	50.46	57.26	57.72	60.16	51.44	49.83	41.60	34.21
2023	37.28	34.19	38.85	41.42	51.10	58.46	59.99	60.86	55.16	47.62	40.76	37.46
2024	31.07	41.06	41.35	43.40	51.80	57.20	59.81	60.63	54.14	47.68	39.02	33.45
2025	31.48	31.94	35.48	43.34	48.55	59.24	59.17	58.19	52.76	45.70	35.96	32.87
2026	29.45	37.27	35.95	42.32	50.58	60.98	60.97	63.63	M	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	74.16	M	40.51	41.48	38.76
1998	38.36	40.07	45.88	51.29	61.47	66.05	66.32	67.64	59.51	52.29	37.70	37.28
1999	39.89	35.25	45.85	51.74	61.09	63.77	70.24	67.68	65.06	51.42	39.95	38.18
2000	36.79	42.61	45.35	53.27	61.85	66.71	63.85	68.81	61.22	54.09	46.28	41.44
2001	37.86	41.26	47.04	48.14	62.28	61.67	69.10	70.06	56.27	57.75	40.04	33.65
2002	33.62	44.63	45.35	50.48	58.22	68.15	67.07	67.48	58.25	51.95	46.13	39.78
2003	33.36	32.84	47.33	51.74	61.00	73.58	70.26	75.29	61.10	47.15	44.45	36.85
2004	35.98	39.17	42.74	52.67	56.27	63.89	67.22	69.10	61.07	53.66	42.05	34.21
2005	37.05	33.03	43.12	52.04	59.03	67.67	69.05	64.37	63.41	54.82	41.30	35.22
2006	29.59	34.73	40.65	50.54	59.44	66.32	76.65	63.50	65.57	56.74	46.04	40.62
2007	42.63	43.12	45.24	57.65	62.14	67.16	66.08	66.00	57.53	51.02	40.46	35.60
2008	39.52	40.72	43.06	49.37	63.65	66.74	68.70	66.78	57.29	52.03	43.25	35.57
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	63.50	M	M	44.60	30.11
2011	31.42	M	M	75.20	61.25	72.73	63.95	66.83	62.15	51.51	41.90	41.87
2012	38.51	30.17	48.35	49.82	60.97	64.34	66.53	68.96	60.02	50.22	43.70	39.32
2013	35.54	32.96	37.81	50.99	54.67	63.83	71.05	67.04	60.08	54.38	41.81	38.27
2014	40.10	42.38	47.65	54.68	57.84	66.05	68.58	63.88	62.03	56.65	45.68	38.50
2015	37.69	34.57	44.14	51.02	58.71	64.85	72.73	70.99	59.00	50.32	47.75	45.35
2016	38.88	42.09	42.57	49.13	57.93	65.36	69.54	68.64	64.91	49.80	41.84	34.26
2017	28.11	41.29	48.66	49.64	61.03	69.08	70.12	68.32	58.43	54.09	43.13	39.03
2018	43.76	32.64	41.29	57.26	62.63	68.00	72.04	71.05	62.84	53.77	43.10	40.94
2019	34.96	41.55	47.42	51.62	54.94	69.32	70.55	69.80	61.10	55.28	43.01	40.16
2020	39.14	45.53	45.47	55.49	57.75	65.06	69.22	71.43	63.17	53.08	44.24	39.66
2021	36.38	40.10	43.85	46.76	53.92	69.02	67.10	64.95	62.21	50.78	40.91	40.07
2022	36.96	43.51	45.15	49.70	62.25	68.96	70.96	72.91	60.62	58.59	47.30	38.56
2023	40.85	40.65	46.66	49.52	60.07	70.10	69.92	68.81	66.77	56.65	45.68	41.99
2024	37.17	47.05	48.90	52.25	60.19	65.87	69.10	70.99	61.67	54.35	43.67	37.98
2025	37.98	38.30	45.96	53.81	59.55	69.80	68.58	68.61	60.35	52.44	42.23	38.36
2026	34.50	43.19	46.25	53.45	61.18	72.05	73.34	77.19	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
1997	M	M	M	M	M	M	M	72.1%	M	74.4%	91.3%	89.5%
1998	83.3%	81.3%	69.3%	75.9%	66.5%	72.9%	73.7%	68.7%	82.7%	85.4%	86.5%	87.8%
1999	84.8%	86.8%	81.9%	76.8%	77.0%	72.7%	73.1%	76.8%	79.7%	85.1%	90.4%	87.1%
2000	91.3%	82.7%	74.5%	70.9%	74.9%	65.4%	77.8%	77.0%	85.3%	85.6%	85.1%	88.3%
2001	84.7%	80.3%	82.0%	76.9%	68.3%	71.8%	67.7%	69.7%	83.4%	88.3%	87.8%	82.7%
2002	87.1%	75.4%	72.8%	65.4%	74.2%	65.7%	70.9%	79.4%	77.3%	81.2%	91.7%	86.8%
2003	86.4%	75.2%	66.1%	59.7%	72.5%	64.1%	63.9%	56.0%	65.7%	78.9%	88.7%	85.0%
2004	84.9%	74.0%	71.5%	65.9%	65.7%	66.3%	68.5%	72.9%	75.0%	85.7%	86.5%	90.8%
2005	79.6%	84.4%	75.7%	73.2%	70.5%	60.4%	68.1%	73.7%	75.4%	88.6%	88.0%	88.0%
2006	88.1%	82.3%	77.5%	70.0%	70.4%	65.7%	59.9%	77.1%	81.3%	86.8%	87.6%	84.1%
2007	79.5%	82.3%	74.8%	56.4%	66.1%	74.0%	73.6%	74.4%	78.9%	83.0%	87.8%	86.1%
2008	82.1%	74.1%	72.8%	75.1%	61.6%	71.2%	67.0%	74.3%	79.1%	85.1%	86.1%	87.4%
2009	85.1%	83.3%	75.0%	70.0%	74.8%	71.1%	73.1%	73.6%	79.7%	82.9%	84.1%	84.6%
2010	91.8%	84.0%	72.5%	64.5%	79.7%	70.6%	68.9%	76.9%	80.4%	85.1%	85.1%	92.2%
2011	85.4%	83.2%	67.3%	63.3%	57.2%	66.6%	70.6%	73.6%	75.6%	82.8%	91.5%	81.6%
2012	83.8%	72.8%	66.9%	67.6%	66.4%	70.1%	69.7%	69.2%	73.4%	81.3%	87.1%	83.2%
2013	84.8%	81.5%	73.4%	65.2%	75.9%	66.9%	62.3%	69.7%	76.7%	80.7%	83.4%	84.6%
2014	82.7%	76.9%	65.4%	64.8%	66.3%	55.5%	70.0%	73.1%	78.7%	83.2%	88.7%	84.0%
2015	84.0%	80.9%	69.2%	60.5%	66.2%	65.3%	55.3%	64.6%	68.9%	84.5%	81.5%	85.8%
2016	85.6%	77.4%	77.5%	78.2%	77.4%	80.8%	73.3%	73.3%	76.6%	88.8%	89.4%	95.4%
2017	90.5%	84.7%	73.8%	67.5%	72.0%	65.5%	71.6%	78.7%	82.2%	85.5%	89.4%	87.6%
2018	85.7%	78.3%	78.6%	66.1%	72.2%	68.4%	62.7%	65.5%	70.1%	80.4%	87.6%	87.4%
2019	85.7%	75.0%	69.7%	70.8%	73.8%	69.5%	65.9%	72.9%	74.4%	86.1%	90.3%	89.3%
2020	86.2%	76.2%	69.4%	57.9%	64.3%	71.4%	60.2%	66.7%	71.1%	81.5%	87.2%	88.5%
2021	84.4%	79.7%	68.8%	62.2%	72.3%	72.1%	77.1%	79.7%	79.9%	85.1%	88.2%	87.3%
2022	85.9%	73.5%	62.1%	69.2%	65.7%	65.6%	56.5%	57.3%	77.0%	84.8%	87.6%	84.3%
2023	81.0%	77.4%	70.9%	72.6%	68.9%	55.4%	66.0%	78.8%	76.8%	81.5%	85.0%	87.6%
2024	84.2%	83.2%	81.5%	74.7%	80.2%	75.4%	77.8%	77.1%	84.0%	91.9%	85.5%	87.0%
2025	80.6%	83.9%	70.3%	66.6%	61.0%	66.7%	70.3%	69.6%	82.5%	83.4%	90.3%	90.6%
2026	87.9%	88.3%	73.0%	61.7%	67.9%	62.5%	55.2%	49.1%	M	M	M	M