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	0.00	0.00	0.00	0.00	0.00	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M	M	M
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	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

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	13.5	17.1	19.7	17.6	M	M	M	M	M	M	M	16.2
2001	8.2	10.7	M	9.3	8.9	8.5	9.2	8.8	9.5	11.0	8.6	10.0
2002	8.1	9.7	11.3	9.7	10.3	9.4	7.2	8.0	7.1	9.1	9.3	9.2
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	16.9	16.9	18.5	20.2
2005	8.4	9.0	9.3	10.9	9.2	10.3	7.3	8.0	9.1	9.6	10.9	10.5
2006	9.6	10.4	8.3	10.1	8.8	9.3	8.4	8.3	8.8	10.9	9.4	9.3
2007	9.6	10.8	10.7	10.6	8.9	8.4	8.5	7.7	9.5	8.9	9.3	10.0
2008	9.4	9.8	11.1	10.3	8.3	9.3	8.6	9.7	7.1	9.0	10.9	9.1
2009	9.3	9.4	9.0	10.5	9.2	9.9	9.0	8.1	9.0	7.4	7.9	9.9
2010	10.4	9.9	8.4	8.3	8.5	7.8	7.6	7.4	8.9	9.8	8.6	11.3
2011	9.1	10.5	10.4	10.3	9.3	8.1	7.5	8.8	7.9	9.8	10.4	9.3
2012	10.8	9.7	11.1	9.8	9.9	8.1	8.1	8.4	9.9	9.9	9.2	10.3
2013	10.7	10.9	10.2	11.1	9.3	9.4	9.5	9.8	10.6	9.2	11.1	9.6
2014	11.0	9.8	10.8	9.4	8.6	8.2	10.8	8.1	10.2	10.4	11.5	9.9
2015	10.0	10.1	11.1	10.9	9.5	9.2	8.8	9.1	9.7	10.0	9.8	10.0
2016	10.8	10.9	10.3	9.9	8.7	10.0	9.0	8.1	10.1	9.4	9.9	10.3
2017	10.1	9.7	10.4	9.8	10.2	9.3	9.7	9.3	7.5	10.3	9.9	10.4
2018	10.3	10.6	11.7	10.3	9.8	10.7	9.5	7.6	8.7	9.6	11.7	8.4
2019	11.1	12.2	11.3	11.3	8.8	9.5	8.1	8.1	8.3	8.4	10.3	9.9
2020	8.4	12.0	10.2	11.0	9.9	10.0	7.9	9.3	9.0	8.6	9.5	9.4
2021	7.9	9.1	12.4	9.7	9.5	9.4	8.0	8.4	8.8	7.4	9.5	9.8
2022	9.7	10.4	10.9	10.0	9.1	9.4	8.7	7.6	7.7	10.8	11.5	12.3
2023	8.4	9.7	9.1	10.9	10.6	9.5	7.9	8.2	7.8	8.6	9.5	9.0
2024	10.5	9.0	9.8	10.6	9.2	8.5	9.0	7.2	9.5	9.0	8.7	9.7
2025	8.6	10.0	M	M	M	M	M	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	20.12	15.80	26.60	32.45	48.56	68.00	M	61.70	M	37.40	M	32.00
2001	19.05	18.31	30.20	39.68	56.85	65.24	67.48	70.09	60.20	48.84	38.30	29.74
2002	18.70	19.85	26.77	39.62	51.51	61.40	67.59	69.45	60.56	44.89	32.18	24.92
2003	13.65	15.09	26.31	36.14	53.77	66.20	68.58	67.88	63.14	47.68	35.96	26.60
2004	6.80	19.40	M	M	M	57.34	63.03	60.73	55.89	45.45	30.39	15.92
2005	12.37	21.65	28.57	40.46	51.28	64.94	73.28	M	42.80	49.83	37.16	23.29
2006	23.70	12.46	27.47	39.29	51.25	63.05	63.80	62.60	51.80	42.80	35.10	23.90
2007	19.45	18.54	28.17	40.38	53.44	64.87	69.45	66.06	58.80	51.69	34.27	21.51
2008	20.12	19.37	24.86	41.48	53.75	59.65	69.82	67.97	59.94	48.79	37.49	22.88
2009	12.56	24.29	28.72	41.86	52.74	62.93	66.48	66.79	59.25	44.50	40.47	26.65
2010	25.55	30.11	34.92	47.02	57.70	64.85	70.55	69.77	58.75	48.29	37.24	31.88
2011	20.12	19.26	29.79	39.61	51.37	59.81	70.54	66.85	62.30	49.88	40.70	26.66
2012	19.28	22.07	33.45	42.08	54.47	64.28	72.06	70.85	60.32	48.03	37.10	27.53
2013	17.25	22.23	33.51	40.40	53.31	61.94	70.61	67.83	57.56	49.48	36.02	15.28
2014	16.73	18.63	22.48	39.14	51.68	67.76	71.43	69.86	59.72	49.88	34.10	25.96
2015	15.34	9.50	27.35	39.26	54.59	62.84	65.97	69.86	63.08	46.34	37.58	30.37
2016	21.90	22.50	26.66	38.00	54.47	62.66	68.06	69.39	60.74	49.94	40.10	24.39
2017	22.25	21.84	25.67	38.24	53.37	65.12	70.61	66.43	61.10	52.73	34.58	19.69
2018	17.66	24.48	33.39	36.44	52.90	62.60	71.66	71.14	59.30	42.22	31.88	22.83
2019	17.60	16.76	28.98	38.48	51.92	62.24	71.89	68.87	57.98	49.01	33.08	25.61
2020	20.79	24.68	30.78	39.80	56.21	64.94	71.14	69.68	58.76	45.24	37.58	30.61
2021	25.50	24.86	31.65	45.26	54.18	67.52	69.34	72.01	61.22	53.43	39.38	26.48
2022	14.24	19.01	30.03	41.90	55.86	62.66	70.44	71.08	60.62	52.79	37.40	30.55
2023	23.75	20.49	33.39	42.32	56.62	63.02	71.08	66.66	65.78	54.18	35.06	31.01
2024	23.64	26.72	34.32	43.88	54.24	67.70	74.27	70.90	63.44	51.74	41.00	26.66
2025	21.61	21.20	M	M	M	M	M	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	19.40	13.10	26.60	29.30	46.76	64.40	M	59.00	M	37.40	M	32.00
2001	2.33	-0.27	28.40	27.98	40.19	49.46	51.63	50.87	44.06	36.59	26.54	18.01
2002	1.69	2.36	7.90	27.68	34.61	43.04	52.73	50.75	42.80	31.65	21.38	10.57
2003	-1.45	-5.16	7.85	21.44	36.24	47.30	53.08	51.92	44.24	34.21	26.42	14.00
2004	6.80	6.80	M	M	M	53.32	57.89	58.03	53.11	40.53	27.47	10.28
2005	-6.79	6.29	12.55	29.78	37.52	48.20	51.86	M	41.00	38.68	25.70	9.41
2006	8.48	6.80	23.41	37.22	45.85	59.00	59.90	56.78	49.60	42.31	32.19	20.66
2007	2.56	0.86	10.65	27.47	35.55	47.02	52.01	49.86	41.83	35.92	21.05	3.48
2008	3.64	-0.17	5.68	30.61	37.76	47.47	53.01	53.77	43.18	33.63	27.02	5.03
2009	-7.57	7.85	9.36	30.23	34.39	47.05	52.32	51.01	41.37	30.80	27.76	13.26
2010	13.57	20.69	19.75	32.69	40.57	45.59	54.64	51.62	44.69	36.55	25.65	21.75
2011	7.43	2.79	14.34	26.10	38.20	46.37	52.57	54.56	43.58	37.11	27.38	10.86
2012	1.57	6.24	18.18	29.54	39.26	48.92	53.60	55.52	44.42	36.82	25.52	14.99
2013	0.18	5.39	24.51	26.12	37.63	44.36	50.93	51.10	44.30	35.37	23.78	1.75
2014	0.41	2.75	3.08	26.90	38.50	48.56	52.61	54.01	44.06	36.88	22.04	13.71
2015	-3.83	-7.34	8.19	25.64	38.74	45.74	51.97	55.46	46.46	32.29	27.86	21.55
2016	8.95	3.32	9.30	21.74	38.56	48.62	52.38	52.73	45.56	35.72	31.94	8.72
2017	6.68	4.55	9.06	27.92	38.97	47.54	51.34	49.48	45.80	36.47	20.66	5.93
2018	-0.28	2.81	22.25	22.58	34.03	44.00	54.12	53.37	43.64	31.36	21.20	8.19
2019	-0.86	1.40	12.26	28.10	36.99	46.28	53.72	51.10	41.36	34.96	21.38	10.98
2020	5.00	5.68	11.97	26.78	37.40	47.60	56.33	52.61	41.54	33.45	24.26	16.90
2021	13.42	9.24	16.79	30.86	36.99	49.22	52.03	53.77	47.54	40.36	28.22	9.99
2022	-6.88	1.59	13.88	30.02	36.82	47.78	52.21	52.79	46.28	38.39	26.12	18.76
2023	8.08	-0.91	21.49	29.48	38.79	49.82	57.08	53.60	48.02	41.81	23.12	18.12
2024	6.97	10.03	23.17	28.10	40.42	50.72	54.01	52.96	46.64	37.92	31.34	13.88
2025	6.86	5.96	M	M	M	M	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
2000	19.76	14.45	26.60	30.87	47.66	66.20	M	60.35	M	37.40	M	32.00
2001	10.69	9.02	29.30	33.83	48.52	57.35	59.55	60.48	52.13	42.71	32.42	23.87
2002	10.20	11.11	17.34	33.65	43.06	52.22	60.16	60.10	51.68	38.27	26.78	17.75
2003	6.10	4.97	17.08	28.79	45.01	56.75	60.83	59.90	53.69	40.94	31.19	20.30
2004	6.80	13.10	M	M	M	55.33	60.46	59.38	54.50	42.99	28.93	13.10
2005	2.79	13.97	20.56	35.12	44.40	56.57	62.57	M	41.90	44.25	31.43	16.35
2006	16.09	9.63	25.44	38.25	48.55	61.02	61.85	59.69	50.70	42.55	33.64	22.28
2007	11.00	9.70	19.41	33.92	44.50	55.94	60.73	57.96	50.32	43.81	27.66	12.49
2008	11.88	9.60	15.27	36.05	45.76	53.56	61.42	60.87	51.56	41.21	32.25	13.96
2009	2.50	16.07	19.04	36.04	43.56	54.99	59.40	58.90	50.31	37.65	34.11	19.95
2010	19.56	25.40	27.34	39.86	49.14	55.22	62.60	60.70	51.72	42.42	31.45	26.82
2011	13.77	11.02	22.06	32.85	44.79	53.09	61.55	60.71	52.94	43.50	34.04	18.76
2012	10.43	14.16	25.82	35.81	46.86	56.60	62.83	63.18	52.37	42.42	31.31	21.26
2013	8.72	13.81	29.01	33.26	45.47	53.15	60.77	59.46	50.93	42.42	29.90	8.51
2014	8.57	10.69	12.78	33.02	45.09	58.16	62.02	61.93	51.89	43.38	28.07	19.84
2015	5.75	1.08	17.77	32.45	46.66	54.29	58.97	62.66	54.77	39.32	32.72	25.96
2016	15.42	12.91	17.98	29.87	46.52	55.64	60.22	61.06	53.15	42.83	36.02	16.55
2017	14.46	13.20	17.37	33.08	46.17	56.33	60.97	57.95	53.45	44.60	27.62	12.81
2018	8.69	13.65	27.82	29.51	43.47	53.30	62.89	62.25	51.47	36.79	26.54	15.51
2019	8.37	9.08	20.62	33.29	44.45	54.26	62.80	59.99	49.67	41.99	27.23	18.30
2020	12.90	15.18	21.37	33.29	46.81	56.27	63.73	61.15	50.15	39.35	30.92	23.75
2021	19.46	17.05	24.22	38.06	45.59	58.37	60.68	62.89	54.38	46.89	33.80	18.24
2022	3.68	10.30	21.95	35.96	46.34	55.22	61.32	61.93	53.45	45.59	31.76	24.65
2023	15.92	9.79	27.44	35.90	47.71	56.42	64.08	60.13	56.90	48.00	29.09	24.57
2024	15.31	18.38	28.75	35.99	47.33	59.21	64.14	61.93	55.04	44.83	36.17	20.27
2025	14.23	13.58	M	M	M	M	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
2000	70.7%	78.1%	84.9%	67.5%	M	M	M	M	M	M	M	85.1%
2001	67.8%	67.5%	M	67.5%	71.1%	71.9%	81.7%	78.6%	80.3%	82.2%	78.9%	75.5%
2002	73.8%	75.8%	71.5%	70.2%	71.9%	72.7%	83.4%	79.1%	81.2%	76.4%	78.9%	75.2%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	89.7%	82.7%	78.1%	79.2%
2005	61.4%	75.2%	72.7%	69.9%	78.1%	75.0%	72.4%	79.7%	78.2%	78.7%	79.9%	72.8%
2006	72.6%	68.5%	69.0%	65.2%	70.1%	73.9%	78.8%	74.3%	79.3%	81.1%	80.8%	74.9%
2007	68.4%	57.6%	59.8%	60.6%	58.7%	73.9%	80.7%	79.3%	79.7%	80.7%	80.5%	71.2%
2008	73.1%	70.7%	69.0%	75.2%	74.7%	83.3%	82.1%	82.1%	82.8%	79.5%	78.4%	75.0%
2009	66.2%	69.7%	66.8%	73.1%	65.8%	78.9%	84.8%	82.1%	78.9%	79.5%	78.0%	79.3%
2010	68.1%	73.7%	64.6%	71.1%	67.0%	70.3%	79.3%	78.2%	82.5%	78.7%	80.6%	82.4%
2011	73.8%	69.6%	71.5%	70.8%	80.2%	82.4%	79.5%	87.1%	82.3%	77.4%	80.2%	80.1%
2012	77.7%	74.2%	70.3%	71.2%	73.5%	80.3%	72.8%	81.4%	83.9%	82.0%	76.6%	83.5%
2013	69.8%	75.1%	78.3%	73.5%	80.0%	75.8%	71.6%	79.5%	82.3%	80.1%	74.4%	75.5%
2014	73.2%	68.8%	63.1%	75.9%	80.7%	73.2%	75.1%	79.7%	78.5%	82.9%	74.7%	78.2%
2015	72.8%	65.2%	62.7%	67.8%	70.4%	74.1%	82.4%	83.6%	79.3%	75.3%	81.7%	82.6%
2016	74.4%	74.5%	70.0%	63.7%	75.8%	77.9%	80.6%	79.2%	81.5%	81.2%	86.2%	81.9%
2017	78.4%	73.0%	70.3%	81.5%	77.4%	74.6%	69.9%	77.9%	80.9%	79.0%	74.8%	74.3%
2018	71.5%	70.7%	71.3%	71.5%	61.5%	64.7%	74.9%	79.9%	77.7%	73.7%	75.5%	73.3%
2019	70.4%	63.8%	66.7%	67.0%	66.3%	71.7%	75.8%	79.9%	80.1%	81.5%	74.3%	74.8%
2020	76.0%	73.5%	68.7%	64.7%	59.5%	69.7%	82.6%	76.5%	80.5%	80.5%	79.5%	81.1%
2021	76.7%	69.1%	67.6%	73.9%	69.6%	72.2%	78.5%	79.5%	86.3%	87.2%	77.8%	77.2%
2022	70.4%	73.3%	71.1%	74.2%	68.4%	79.2%	78.2%	81.0%	80.6%	83.5%	80.1%	80.6%
2023	76.9%	68.6%	76.0%	73.2%	61.1%	81.3%	87.6%	84.9%	84.9%	84.2%	78.6%	77.4%
2024	74.8%	71.6%	77.1%	72.0%	79.7%	77.7%	77.8%	80.6%	83.5%	79.0%	81.2%	80.9%
2025	76.4%	67.2%	M	M	M	M	M	M	M	M	M	M