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	0.25	0.00	M	0.00	M	M	M	M	M	M	M	0.42
2001	5.99	4.65	0.00	1.32	2.38	4.88	3.35	3.93	3.96	3.77	3.17	1.91
2002	1.91	3.41	4.19	4.34	4.05	4.23	3.09	0.71	5.37	3.58	3.85	1.96
2003	M	M	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.29
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	0.09	0.06	0.72	4.67	3.18	4.13	0.03	M	5.89	3.33	3.16	4.69
2008	3.67	4.36	8.08	4.31	2.31	8.99	6.02	3.47	2.80	4.21	2.22	5.92
2009	2.45	2.51	1.91	2.32	3.85	4.94	6.04	3.43	4.31	3.97	2.82	5.68
2010	2.74	1.82	2.15	1.45	1.88	3.49	1.71	3.20	7.52	2.99	4.19	4.10
2011	0.96	3.85	5.49	4.97	5.37	4.03	6.90	9.48	4.01	3.42	3.02	2.72
2012	0.31	0.33	2.42	0.60	2.07	5.04	2.24	2.09	2.15	0.77	0.85	4.31
2013	3.09	2.13	2.95	3.06	10.35	4.97	5.54	4.65	3.29	3.35	4.80	1.95
2014	3.87	2.01	2.67	4.53	2.70	3.75	6.40	4.45	4.35	4.43	3.22	3.74
2015	4.15	1.15	1.79	4.20	4.40	5.72	4.79	1.67	4.16	4.50	3.76	4.62
2016	2.02	6.15	5.46	2.56	3.57	4.09	3.65	3.05	3.89	7.17	3.34	4.85
2017	3.81	3.31	4.02	5.13	4.05	6.38	2.63	3.88	2.31	7.70	5.39	3.43
2018	4.75	3.05	1.48	4.96	2.40	4.45	1.89	4.40	4.12	3.92	5.43	4.49
2019	3.96	4.33	3.54	5.40	3.43	6.36	1.43	4.04	5.19	2.05	M	M
2020	M	M	M	M	M	M	1.96	5.75	3.67	6.19	3.12	4.66
2021	0.94	2.33	3.44	1.43	2.61	6.58	5.12	1.56	5.26	2.68	3.73	4.27
2022	1.30	4.15	4.29	3.79	4.49	4.80	4.41	6.11	2.58	2.83	4.46	4.93
2023	2.83	2.73	2.27	2.71	1.98	4.33	8.87	8.85	0.53	2.57	3.69	3.27
2024	2.56	1.25	3.17	2.20	3.57	6.36	2.87	6.75	3.38	2.36	3.80	4.04
2025	2.06	2.71	3.19	2.99	4.18	6.52	8.93	2.37	2.13	5.13	0.16	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	9.3	11.2	M	10.2	10.6	9.5	8.4	7.9	9.2	10.3	10.4	10.0
2002	9.9	10.7	12.4	11.0	11.2	9.6	7.7	7.9	8.1	10.6	11.3	9.6
2003	M	M	M	M	M	8.1	8.8	9.8	7.9	9.8	10.9	11.7
2004	13.0	10.1	9.2	10.9	10.8	9.0	7.5	7.2	7.0	8.6	9.0	11.3
2005	9.6	8.7	11.0	12.1	14.9	11.2	6.6	7.1	8.7	12.7	10.2	10.1
2006	11.4	11.8	9.1	10.9	12.7	8.3	7.6	7.1	7.0	10.5	10.6	9.5
2007	9.8	10.7	10.6	12.8	10.2	10.6	9.2	M	9.0	8.7	9.4	10.7
2008	9.5	9.8	10.2	11.1	9.0	9.4	8.4	8.7	7.2	8.9	10.0	10.1
2009	10.4	9.0	9.4	10.2	9.5	10.4	9.5	7.8	7.4	9.1	8.1	10.7
2010	10.1	12.1	10.5	10.0	8.4	8.0	7.7	7.7	9.4	10.0	9.9	8.4
2011	9.2	8.9	8.7	10.4	12.0	9.3	6.8	8.2	7.1	10.8	8.4	7.9
2012	10.1	8.2	9.6	8.0	8.5	7.8	6.0	7.4	8.1	13.5	7.6	10.4
2013	9.3	10.0	8.9	9.9	9.7	7.3	7.4	7.9	8.1	8.5	9.2	10.0
2014	9.3	9.0	9.4	9.6	10.3	7.0	5.6	4.9	9.3	9.8	10.3	9.5
2015	9.1	9.6	9.0	9.0	9.4	6.5	6.3	7.7	7.3	7.6	8.4	9.8
2016	9.6	10.2	8.8	8.5	9.6	8.1	8.2	6.6	7.0	7.3	9.3	8.7
2017	9.8	8.6	8.9	10.4	8.8	6.5	7.0	7.1	7.2	8.1	8.1	10.1
2018	9.3	8.0	10.4	9.6	7.8	6.2	2.5	2.4	6.7	18.1	11.5	7.2
2019	10.7	10.8	8.7	11.6	8.3	7.5	6.7	6.2	6.9	8.3	8.9	9.2
2020	8.1	8.8	9.8	10.6	8.5	8.2	7.0	7.0	6.1	6.9	7.8	8.1
2021	8.1	8.4	9.6	10.8	7.9	6.9	21.5	8.7	6.3	8.7	7.5	8.7
2022	8.1	8.9	8.6	8.9	8.1	7.4	7.4	6.3	7.0	6.7	7.9	10.4
2023	8.6	8.4	8.0	9.9	9.0	8.9	6.1	6.1	6.3	6.0	7.0	8.2
2024	9.4	6.9	9.0	10.3	9.2	7.6	7.0	5.8	7.8	7.3	8.5	8.0
2025	8.3	8.8	8.8	8.8	9.0	7.2	6.8	5.8	5.5	6.9	9.4	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	14.85	19.02	30.90	35.65	53.82	76.60	M	72.65	M	38.30	M	33.30
2001	22.04	22.84	30.90	47.80	67.57	74.72	74.95	78.34	67.53	52.62	43.03	34.42
2002	25.97	25.26	31.57	47.20	59.77	69.60	78.59	80.83	73.21	48.99	35.87	27.23
2003	15.69	19.11	31.38	42.27	59.19	74.42	76.14	74.03	70.51	51.69	40.59	28.23
2004	24.10	25.15	M	M	M	62.66	70.47	68.27	62.74	50.08	34.32	16.68
2005	16.31	26.33	31.49	47.90	54.40	73.02	80.01	M	48.00	54.87	38.22	24.94
2006	27.07	16.12	28.11	41.29	56.18	67.58	71.70	70.16	57.76	47.25	37.45	28.46
2007	22.40	21.67	32.10	44.26	63.11	70.64	63.00	M	67.99	56.95	37.91	23.50
2008	23.48	23.47	29.22	45.71	57.84	69.20	75.93	72.07	67.42	53.13	38.85	25.14
2009	13.31	25.40	33.01	46.80	60.63	68.72	70.90	76.51	67.65	47.65	44.87	26.39
2010	25.91	28.81	40.10	53.72	67.80	72.37	81.44	77.19	63.56	52.08	39.99	27.41
2011	20.73	23.25	32.65	46.17	56.23	70.53	79.66	73.71	67.28	53.21	44.59	30.01
2012	22.10	26.80	39.53	52.08	57.12	74.80	78.84	79.26	68.71	54.99	39.53	28.42
2013	22.65	24.31	35.94	46.39	62.48	69.16	83.25	77.96	71.64	58.73	49.82	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	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	49.83	43.72	31.60
2021	25.76	25.68	37.62	49.40	64.02	75.22	75.11	80.10	68.37	58.04	40.84	28.63
2022	15.45	22.74	31.87	46.24	64.61	71.19	78.71	76.54	66.84	58.13	42.12	32.25
2023	27.05	24.18	35.51	47.53	65.47	69.14	78.06	72.47	70.75	60.60	38.17	32.79
2024	25.51	30.00	37.55	50.21	63.35	74.57	79.55	76.70	70.10	57.03	44.23	27.88
2025	22.23	21.49	34.73	47.23	61.62	73.91	79.17	77.70	71.53	58.33	45.43	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	14.10	16.74	30.90	32.88	53.30	74.50	M	51.65	M	37.90	M	31.50
2001	7.83	7.33	30.60	33.23	48.48	56.15	58.32	59.23	51.91	41.17	32.98	25.81
2002	14.54	11.81	18.08	33.75	42.42	51.28	60.74	60.87	53.09	37.72	26.10	15.46
2003	2.50	2.72	14.74	28.42	44.89	55.44	60.15	60.14	52.93	39.31	28.58	16.95
2004	24.10	20.40	M	M	M	59.91	65.69	65.51	59.98	46.32	30.99	12.32
2005	0.65	11.22	18.19	34.48	43.54	55.50	61.27	M	44.10	45.00	27.98	14.19
2006	16.22	11.60	24.06	39.86	52.17	63.90	68.06	65.29	54.38	46.52	36.02	25.96
2007	8.49	6.60	17.44	32.93	44.98	54.82	48.60	M	49.71	43.57	27.24	11.87
2008	10.33	8.90	13.16	33.77	43.50	55.19	60.84	58.12	53.14	38.56	30.21	10.06
2009	-1.45	10.22	17.26	33.43	44.47	54.04	58.22	59.96	50.12	37.95	32.34	15.76
2010	14.67	19.27	27.18	38.44	47.38	55.91	63.27	59.81	52.48	39.63	29.06	17.32
2011	10.23	9.35	18.26	32.58	45.93	54.50	61.52	59.66	53.54	41.90	32.19	18.11
2012	7.63	12.90	25.32	36.15	45.25	57.98	60.95	62.22	50.88	44.86	27.24	17.53
2013	5.85	11.22	25.86	32.78	46.29	53.49	63.39	59.64	53.14	43.88	33.89	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	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	38.14	29.69	20.84
2021	16.49	11.89	19.87	36.70	46.46	58.25	58.94	64.30	52.76	46.46	30.49	15.95
2022	-1.23	7.15	20.49	34.35	45.72	55.41	61.22	61.50	52.35	40.72	29.61	23.10
2023	17.18	7.09	23.40	34.97	45.56	56.66	64.72	58.16	55.83	47.15	26.60	23.14
2024	13.97	15.99	26.74	35.59	49.58	58.75	64.14	60.94	54.38	42.44	34.18	17.41
2025	9.32	7.34	22.28	33.50	46.11	55.73	62.59	58.80	51.00	43.47	36.43	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	14.47	17.88	30.90	34.26	53.56	75.55	M	62.15	M	38.10	M	32.40
2001	14.93	15.09	30.75	40.51	58.03	65.44	66.63	68.79	59.72	46.89	38.01	30.11
2002	20.25	18.53	24.83	40.48	51.10	60.44	69.66	70.85	63.15	43.35	30.99	21.35
2003	9.10	10.92	23.06	35.34	52.04	64.93	68.14	67.09	61.72	45.50	34.59	22.59
2004	24.10	22.77	M	M	M	61.28	68.08	66.89	61.36	48.20	32.65	14.50
2005	8.48	18.77	24.84	41.19	48.97	64.26	70.64	M	46.05	49.93	33.10	19.56
2006	21.65	13.86	26.09	40.58	54.18	65.74	69.88	67.73	56.07	46.88	36.74	27.21
2007	15.44	13.87	24.77	38.60	54.05	62.73	55.80	M	58.85	50.26	32.57	17.69
2008	16.90	16.18	21.19	39.74	50.67	62.20	68.38	65.10	60.28	45.85	34.53	17.60
2009	5.93	17.81	25.13	40.12	52.55	61.38	64.56	68.23	58.89	42.80	38.60	21.08
2010	20.29	24.04	33.64	46.08	57.59	64.14	72.36	68.50	58.02	45.85	34.52	22.36
2011	15.48	16.30	25.45	39.38	51.08	62.52	70.59	66.68	60.41	47.56	38.39	24.06
2012	14.87	19.85	32.42	44.12	51.18	66.39	69.90	70.74	59.79	49.93	33.39	22.97
2013	14.25	17.76	30.90	39.59	54.38	61.33	73.32	68.80	62.39	51.31	41.85	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	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	43.98	36.70	26.22
2021	21.13	18.78	28.75	43.05	55.24	66.74	67.02	72.20	60.57	52.25	35.66	22.29
2022	7.11	14.94	26.18	40.30	55.16	63.30	69.96	69.02	59.59	49.42	35.86	27.68
2023	22.11	15.63	29.45	41.25	55.52	62.90	71.39	65.32	63.29	53.88	32.38	27.97
2024	19.74	22.99	32.15	42.90	56.47	66.66	71.84	68.82	62.24	49.74	39.21	22.65
2025	15.78	14.41	28.51	40.37	53.86	64.82	70.88	68.25	61.27	50.90	40.93	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	M	M	M	M	M	M	M	M	M	M	M	M
2001	73.9%	69.4%	M	59.4%	61.7%	68.3%	72.9%	67.9%	74.4%	75.7%	77.5%	77.5%
2002	78.8%	74.8%	71.7%	62.3%	65.3%	67.8%	68.3%	67.1%	68.2%	67.2%	71.6%	71.0%
2003	M	M	M	M	M	57.6%	69.4%	70.7%	72.9%	76.2%	78.8%	81.1%
2004	70.9%	71.0%	75.1%	66.0%	65.6%	68.8%	78.5%	73.4%	73.5%	73.8%	73.0%	75.1%
2005	66.6%	70.4%	67.7%	68.0%	67.9%	74.1%	67.7%	69.5%	74.4%	78.8%	79.0%	77.9%
2006	80.4%	71.9%	67.9%	67.0%	74.4%	73.7%	74.2%	69.7%	80.2%	79.6%	81.2%	80.1%
2007	74.3%	68.6%	69.0%	73.7%	58.3%	68.6%	63.3%	M	70.5%	75.1%	74.3%	78.3%
2008	77.0%	77.7%	71.5%	73.7%	65.0%	77.9%	74.0%	77.4%	77.9%	74.8%	75.5%	76.8%
2009	74.0%	75.1%	68.9%	65.4%	62.7%	72.6%	81.0%	72.2%	71.1%	77.3%	74.5%	75.3%
2010	75.5%	77.2%	66.2%	63.6%	58.2%	67.5%	68.2%	71.3%	79.5%	72.1%	76.6%	80.0%
2011	69.8%	67.4%	71.3%	64.9%	77.7%	73.1%	69.8%	77.3%	76.9%	73.7%	74.8%	78.0%
2012	74.0%	72.3%	68.8%	57.9%	72.4%	73.7%	63.7%	72.3%	71.5%	76.6%	68.3%	78.2%
2013	72.0%	70.9%	75.7%	64.5%	73.6%	74.2%	70.3%	77.8%	81.5%	78.5%	59.5%	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	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	10.0%	13.5%	3.2%	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	M	73.8%	74.6%	78.7%
2021	76.1%	73.1%	62.9%	69.1%	59.9%	67.5%	70.1%	69.6%	75.2%	78.7%	75.2%	74.2%
2022	70.4%	75.2%	74.3%	66.8%	64.5%	73.1%	67.1%	74.3%	72.4%	73.1%	74.4%	75.7%
2023	76.8%	71.5%	71.2%	66.2%	52.5%	75.2%	77.9%	77.8%	78.1%	78.2%	73.0%	77.4%
2024	74.7%	71.8%	72.6%	64.9%	71.5%	70.4%	72.2%	75.4%	76.8%	73.3%	74.9%	77.9%
2025	72.7%	69.7%	70.9%	65.8%	69.5%	68.8%	71.5%	66.9%	68.6%	71.1%	63.2%	M