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	M	M	M	M	M	M	M	M	M	M	M	0.00
2001	0.24	0.50	0.00	1.21	1.34	3.27	2.05	3.00	5.53	4.03	2.22	2.09
2002	0.95	1.05	0.91	1.50	3.82	2.05	1.96	2.14	3.70	3.69	0.76	1.63
2003	M	M	M	M	M	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	0.01
2007	0.02	0.06	1.10	3.81	5.79	1.65	4.13	2.76	6.97	3.42	4.34	5.58
2008	5.78	3.97	2.69	3.59	4.07	4.72	6.18	2.15	3.56	2.96	2.77	4.64
2009	4.76	0.00	0.00	0.00	1.88	4.05	5.18	2.96	0.17	19.23	0.43	0.16
2010	0.44	0.00	0.00	4.02	1.68	1.87	2.58	2.43	8.00	0.00	0.00	0.00
2011	0.00	0.00	0.00	0.00	10.15	14.37	2.07	2.72	2.74	1.44	1.37	1.21
2012	1.11	0.43	1.37	2.09	3.27	1.79	1.29	2.17	2.63	3.31	0.94	1.04
2013	0.63	0.89	1.19	1.92	2.18	2.38	6.86	3.97	3.16	1.84	2.93	0.82
2014	0.80	0.33	1.14	2.03	1.59	2.79	6.04	3.73	5.57	6.44	4.07	2.11
2015	1.57	0.50	1.03	1.15	1.40	3.42	3.35	3.22	1.16	3.07	1.12	2.59
2016	1.79	1.37	1.29	0.92	3.14	1.95	3.00	6.37	4.37	3.98	2.23	1.55
2017	1.47	1.92	0.37	2.32	5.40	5.87	1.09	2.18	3.51	5.21	2.45	1.02
2018	1.23	1.13	0.64	0.00	1.84	1.94	1.01	1.96	4.04	5.62	0.67	0.47
2019	0.26	1.25	0.56	1.82	0.84	3.67	2.37	2.48	3.81	1.63	2.15	1.02
2020	1.41	0.75	1.62	1.57	1.39	4.95	2.75	2.16	3.97	2.26	1.98	2.26
2021	0.33	0.43	1.50	2.45	2.00	1.96	2.88	1.22	3.53	2.54	1.24	2.53
2022	0.60	1.24	1.14	2.04	4.16	3.66	5.10	2.58	2.33	4.37	3.00	1.51
2023	0.70	0.79	1.51	2.95	2.29	1.39	1.99	2.66	1.52	2.54	1.79	1.54
2024	0.94	0.68	1.64	2.84	3.03	2.40	2.92	2.47	2.40	2.85	2.08	0.93
2025	0.01	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	M	M	M	M	M	M	M	M	M	M	M	M
2001	6.8	8.8	M	8.1	9.3	8.6	7.7	8.1	8.8	9.5	9.5	9.2
2002	6.9	8.7	8.3	8.1	10.1	7.6	7.6	8.7	8.5	7.7	7.8	8.2
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	13.6
2005	8.1	8.1	7.0	8.2	7.3	8.5	7.9	7.5	8.5	7.7	9.8	8.2
2006	7.5	8.3	9.9	7.7	8.6	7.4	6.8	6.5	6.1	9.6	9.1	7.9
2007	8.7	8.4	9.1	8.6	9.3	8.0	6.9	8.3	9.2	9.3	9.7	8.7
2008	9.4	7.7	8.6	9.6	9.5	7.3	7.6	7.1	7.7	9.4	8.8	8.5
2009	6.7	7.8	8.9	8.2	8.9	6.2	6.9	6.8	0.0	7.7	7.7	8.2
2010	8.3	5.8	9.3	8.6	7.6	6.5	7.2	8.6	8.6	8.8	8.3	9.2
2011	6.6	8.7	8.1	8.0	7.6	6.4	6.9	6.8	7.3	7.6	8.5	7.4
2012	8.7	7.2	8.4	8.0	8.4	7.8	6.7	7.7	7.5	8.4	8.0	7.4
2013	7.6	6.2	9.0	9.4	7.7	6.3	6.8	7.3	8.1	7.8	10.9	7.5
2014	9.5	8.7	7.7	8.9	7.4	6.6	7.8	5.7	7.8	8.6	8.1	7.6
2015	8.5	7.9	9.5	9.4	7.4	6.2	7.5	7.3	7.5	7.7	9.0	8.5
2016	7.8	8.7	7.1	7.9	7.1	7.9	7.1	6.6	7.0	8.6	8.6	8.2
2017	8.3	8.1	8.1	8.2	7.9	6.5	6.2	5.9	7.1	8.5	9.4	7.6
2018	7.3	8.5	6.4	8.3	8.4	6.6	8.0	6.7	7.7	7.3	7.4	7.9
2019	7.4	8.0	9.0	8.4	7.2	6.7	7.2	6.6	6.4	8.3	7.7	7.7
2020	7.0	9.9	8.4	7.7	7.6	7.3	6.1	6.1	8.5	7.9	9.0	7.8
2021	6.7	6.1	10.0	7.3	8.0	7.3	5.2	7.4	6.8	5.6	8.7	8.4
2022	8.2	7.4	7.7	8.6	7.1	8.2	6.5	5.7	5.7	9.3	9.1	7.8
2023	6.5	7.5	6.8	8.2	7.3	5.3	5.0	4.9	5.3	7.7	9.1	7.4
2024	7.5	7.2	7.7	8.1	7.9	7.6	6.0	5.5	6.9	9.0	8.1	7.7
2025	10.5	M	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	M	M	M	M	M	M	M	M	M	M	M	-3.50
2001	15.09	15.53	40.60	45.89	65.24	70.46	72.65	74.25	59.83	47.63	37.82	25.98
2002	12.59	17.73	22.96	41.06	54.96	68.52	75.77	72.88	65.52	40.48	25.63	18.21
2003	M	4.92	22.35	32.44	61.73	71.34	68.09	70.90	63.04	43.31	32.28	21.54
2004	9.30	36.30	M	M	M	58.42	64.98	59.33	63.01	45.84	29.60	3.88
2005	8.81	20.52	25.00	48.79	59.48	75.44	78.53	M	56.70	50.05	30.50	15.38
2006	19.86	4.52	23.13	36.79	56.09	65.31	65.56	67.93	47.73	41.00	27.48	21.89
2007	15.10	7.61	30.97	43.53	63.25	69.48	71.91	70.03	62.51	49.72	28.99	15.64
2008	16.05	14.44	24.28	44.43	52.57	65.79	69.99	71.28	61.16	47.65	29.77	10.98
2009	4.65	14.50	27.98	41.33	55.07	67.47	60.09	67.17	66.93	45.88	42.33	23.68
2010	14.94	10.40	41.64	53.33	66.11	67.49	75.67	75.04	57.72	48.86	37.37	19.72
2011	8.77	17.18	26.34	42.79	61.55	69.96	77.04	73.36	63.66	52.11	35.94	20.45
2012	16.10	23.16	40.85	44.76	62.94	73.42	76.33	71.79	61.02	48.10	32.34	18.79
2013	12.98	13.25	26.72	37.39	57.89	67.71	73.19	71.26	62.79	48.52	30.40	5.92
2014	6.68	11.36	20.05	39.99	58.42	72.82	69.26	70.37	60.00	45.88	26.54	20.57
2015	7.73	2.60	26.97	43.33	61.24	68.86	75.47	71.63	69.28	46.51	39.78	28.49
2016	16.14	14.87	30.69	38.74	61.82	68.88	74.00	74.19	65.83	49.66	40.07	18.95
2017	20.49	20.13	31.16	46.85	56.18	68.39	74.43	67.78	64.01	53.14	28.37	10.03
2018	12.10	15.13	26.14	37.07	63.45	71.81	79.07	74.04	63.89	38.59	25.14	21.67
2019	6.45	12.56	28.05	41.07	55.70	69.15	76.62	70.02	60.57	48.51	25.28	17.78
2020	18.16	20.40	31.80	39.61	56.46	70.29	77.43	71.28	60.06	41.41	35.45	21.12
2021	18.79	15.38	33.20	47.32	60.77	72.85	72.85	75.45	62.28	56.19	33.59	19.32
2022	6.92	12.48	28.03	42.40	65.06	69.72	72.13	71.08	63.36	51.65	34.53	21.73
2023	18.55	17.69	27.64	41.49	65.50	75.10	74.11	70.47	69.56	49.35	31.99	29.12
2024	17.59	25.28	34.24	47.93	63.67	73.09	76.05	74.84	71.36	51.80	37.32	20.98
2025	9.96	M	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	M	M	M	M	M	M	M	M	M	M	M	-9.00
2001	-4.41	-11.45	31.60	27.69	42.61	47.76	51.37	52.79	43.28	33.37	25.74	11.30
2002	-5.37	-7.91	-2.52	22.92	32.63	47.70	55.14	52.29	46.95	26.80	9.19	1.61
2003	M	-21.49	-2.88	10.55	34.43	43.64	49.02	52.29	46.54	31.93	21.09	4.89
2004	9.30	27.25	M	M	M	55.38	57.21	56.08	58.66	41.93	26.30	-2.75
2005	-17.78	-4.44	-1.24	27.42	37.92	52.16	52.92	M	55.00	35.26	16.53	-1.13
2006	4.08	-6.74	15.75	32.62	51.07	57.29	61.65	58.56	44.69	40.67	24.94	17.00
2007	-4.67	-17.07	5.35	21.68	37.03	48.47	52.31	51.24	42.66	37.03	15.75	-3.42
2008	-3.74	-9.53	-3.61	25.97	35.14	48.01	51.90	48.41	41.67	33.21	19.95	-10.79
2009	-18.42	-10.18	2.31	21.59	32.54	47.01	42.79	50.44	49.17	33.85	31.00	8.15
2010	-2.83	-9.28	13.51	29.36	42.34	46.65	54.48	55.50	41.52	33.11	19.44	8.75
2011	-14.19	-9.34	0.48	20.81	36.60	46.05	55.53	51.19	43.10	36.28	23.81	1.19
2012	-3.48	-0.20	18.63	23.36	39.66	51.98	54.74	50.44	43.35	34.25	20.23	4.13
2013	-8.92	-8.34	8.94	18.99	35.05	45.23	52.67	52.73	42.52	34.73	17.49	-12.04
2014	-14.24	-9.32	-7.01	17.38	39.47	48.07	50.99	51.38	42.38	34.35	9.79	2.51
2015	-15.74	-23.32	-0.66	19.44	38.19	47.79	54.94	53.52	49.24	29.64	24.36	17.81
2016	-2.20	-8.90	7.95	17.29	36.19	46.17	52.85	54.61	46.47	34.89	27.97	5.75
2017	5.36	-1.01	6.93	25.27	38.07	47.57	49.72	48.35	46.37	37.62	14.28	-5.98
2018	-7.73	-8.31	-0.26	13.49	36.32	46.03	57.11	50.41	42.80	28.94	12.64	4.62
2019	-17.40	-12.37	3.57	22.94	34.17	44.36	55.31	51.23	43.99	34.93	14.61	-0.48
2020	0.35	-2.94	6.62	17.24	34.50	49.95	58.50	52.13	42.82	27.54	22.96	6.98
2021	4.66	-13.33	7.50	27.29	38.29	49.82	50.52	54.33	43.59	40.38	22.84	-0.62
2022	-22.48	-17.88	4.86	24.68	42.35	48.82	52.85	51.94	43.11	36.42	22.26	4.62
2023	-0.20	-8.27	1.24	23.44	37.89	48.94	52.41	48.45	44.60	37.15	18.55	15.45
2024	3.18	2.96	13.39	26.04	41.61	50.60	55.85	52.38	48.75	35.44	28.90	7.89
2025	-3.16	M	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	M	M	M	M	M	M	M	M	M	M	M	-6.25
2001	5.34	2.04	36.10	36.79	53.92	59.11	62.01	63.52	51.55	40.50	31.78	18.64
2002	3.61	4.91	10.22	31.99	43.79	58.11	65.46	62.59	56.24	33.64	17.41	9.91
2003	M	-8.28	9.74	21.49	48.08	57.49	58.55	61.59	54.79	37.62	26.68	13.21
2004	9.30	31.77	M	M	M	56.90	61.10	57.71	60.83	43.88	27.95	0.56
2005	-4.49	8.04	11.88	38.11	48.70	63.80	65.72	M	55.85	42.65	23.52	7.13
2006	11.97	-1.11	19.44	34.71	53.58	61.30	63.60	63.24	46.21	40.84	26.21	19.45
2007	5.21	-4.73	18.16	32.61	50.14	58.97	62.11	60.63	52.58	43.37	22.37	6.11
2008	6.15	2.45	10.33	35.20	43.85	56.90	60.95	59.84	51.42	40.43	24.86	0.10
2009	-6.89	2.16	15.15	31.46	43.80	57.24	51.44	58.81	58.05	39.86	36.67	15.92
2010	6.06	0.56	27.57	41.34	54.22	57.07	65.07	65.27	49.62	40.98	28.40	14.23
2011	-2.71	3.92	13.41	31.80	49.07	58.01	66.28	62.27	53.38	44.20	29.88	10.82
2012	6.31	11.48	29.74	34.06	51.30	62.70	65.53	61.11	52.18	41.17	26.28	11.46
2013	2.03	2.46	17.83	28.19	46.47	56.47	62.93	61.99	52.66	41.63	23.94	-3.06
2014	-3.78	1.02	6.52	28.69	48.94	60.44	60.13	60.88	51.19	40.11	18.16	11.54
2015	-4.01	-10.36	13.15	31.38	49.71	58.33	65.20	62.58	59.26	38.08	32.07	23.15
2016	6.97	2.99	19.32	28.01	49.00	57.53	63.43	64.40	56.15	42.28	34.02	12.35
2017	12.93	9.56	19.05	36.06	47.13	57.98	62.07	58.07	55.19	45.38	21.33	2.02
2018	2.18	3.41	12.94	25.28	49.88	58.92	68.09	62.22	53.34	33.76	18.89	13.15
2019	-5.48	0.10	15.81	32.00	44.93	56.76	65.96	60.62	52.28	41.72	19.95	8.65
2020	9.26	8.73	19.21	28.43	45.48	60.12	67.96	61.71	51.44	34.47	29.20	14.05
2021	11.73	1.03	20.35	37.31	49.53	61.33	61.69	64.89	52.93	48.29	28.21	9.35
2022	-7.78	-2.70	16.44	33.54	53.70	59.27	62.49	61.51	53.23	44.03	28.40	13.17
2023	9.17	4.71	14.44	32.46	51.70	62.02	63.26	59.46	57.08	43.25	25.27	22.28
2024	10.39	14.12	23.82	36.99	52.64	61.85	65.95	63.61	60.06	43.62	33.11	14.44
2025	3.40	M	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	M	M	M	M	M	M	M	M	M	M	M	M
2001	82.5%	76.7%	M	64.7%	60.5%	67.1%	71.1%	71.5%	81.6%	81.5%	83.6%	86.1%
2002	82.1%	76.2%	68.6%	66.1%	65.0%	65.5%	66.4%	71.1%	78.2%	81.1%	85.8%	82.2%
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	87.6%
2005	75.3%	75.9%	64.2%	61.0%	65.1%	63.6%	61.4%	69.2%	73.3%	81.5%	85.5%	80.8%
2006	81.2%	73.1%	71.3%	64.4%	62.1%	61.6%	71.5%	70.8%	75.1%	75.6%	78.7%	83.8%
2007	77.0%	66.5%	65.2%	66.0%	55.6%	67.4%	72.2%	71.3%	77.0%	83.3%	82.9%	83.9%
2008	83.3%	77.4%	66.8%	65.8%	71.5%	76.2%	77.8%	75.3%	78.3%	79.5%	90.5%	83.4%
2009	78.6%	79.4%	69.2%	68.9%	68.0%	73.0%	84.6%	81.1%	M	88.7%	85.1%	89.9%
2010	87.2%	80.9%	74.8%	65.5%	66.2%	70.9%	75.5%	76.7%	83.7%	77.7%	85.1%	88.3%
2011	82.9%	79.4%	70.5%	70.7%	61.3%	65.2%	73.1%	75.2%	82.6%	82.4%	86.9%	86.9%
2012	85.1%	80.9%	74.0%	66.9%	64.6%	68.7%	71.2%	76.0%	79.1%	84.9%	86.0%	87.1%
2013	79.8%	81.1%	79.6%	76.1%	68.4%	69.1%	74.6%	78.9%	80.1%	83.5%	85.4%	81.0%
2014	79.5%	77.1%	73.1%	70.6%	72.3%	65.6%	77.5%	78.7%	81.9%	86.4%	86.7%	87.1%
2015	78.2%	71.0%	69.8%	61.4%	71.0%	69.6%	72.9%	79.4%	76.2%	82.9%	84.3%	88.9%
2016	85.7%	80.0%	72.6%	65.0%	66.5%	69.3%	74.8%	76.1%	81.8%	84.5%	88.5%	87.5%
2017	87.2%	80.9%	65.9%	67.3%	71.4%	71.6%	65.3%	76.3%	79.7%	78.4%	82.8%	77.5%
2018	77.9%	72.8%	66.7%	58.2%	59.7%	66.2%	66.6%	74.8%	78.5%	86.3%	83.9%	83.1%
2019	77.3%	75.4%	68.9%	65.9%	61.6%	67.2%	70.1%	77.1%	82.5%	80.7%	83.8%	82.9%
2020	82.6%	74.5%	71.4%	62.4%	63.3%	72.7%	75.6%	76.8%	78.8%	81.0%	85.9%	85.0%
2021	83.3%	72.1%	66.2%	70.6%	64.8%	68.8%	73.3%	76.1%	83.0%	85.6%	84.4%	82.7%
2022	75.9%	72.2%	69.9%	66.0%	65.3%	71.5%	76.9%	78.3%	80.8%	81.6%	83.1%	83.5%
2023	80.7%	75.4%	69.3%	72.1%	59.2%	60.0%	73.4%	77.7%	76.9%	85.9%	79.0%	85.2%
2024	82.7%	78.5%	70.4%	65.2%	67.6%	69.5%	72.9%	76.3%	76.4%	81.3%	93.0%	88.8%
2025	80.4%	M	M	M	M	M	M	M	M	M	M	M