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	M	0.00	M	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	0.09	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	1.85	2.90	5.44	2.07	3.89	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	0.00
2007	0.00	0.00	0.00	0.02	1.14	2.62	2.31	5.78	3.74	3.66	0.41	0.00
2008	0.00	0.00	0.00	0.00	2.67	4.98	3.01	1.78	3.55	3.26	1.24	0.00
2009	0.00	0.00	0.00	0.00	2.62	1.42	6.73	3.19	3.04	3.16	0.23	0.00
2010	0.00	0.00	0.00	0.00	1.05	1.24	2.71	2.91	9.14	3.31	0.82	0.00
2011	0.00	0.00	0.00	0.00	0.74	3.47	6.54	7.53	3.23	1.55	0.68	0.00
2012	0.00	0.00	0.00	0.00	2.96	5.25	1.26	2.33	0.00	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	0.00	1.69	1.86	5.69	3.89	2.96	0.47	M
2014	M	M	M	0.11	2.96	2.50	2.18	3.81	2.72	3.53	0.02	M
2015	M	M	M	1.01	1.91	2.94	5.09	4.19	2.00	0.94	0.53	1.41
2016	0.43	0.05	M	1.39	2.22	4.97	6.01	2.47	2.85	4.82	2.52	0.21
2017	0.75	M	M	1.87	4.42	0.73	0.00	M	M	M	M	M
2018	M	M	M	M	M	M	M	0.67	2.89	3.30	1.61	0.92
2019	M	M	M	3.57	2.70	2.21	1.04	2.32	3.54	1.68	0.90	0.11
2020	M	M	M	2.23	2.08	1.60	2.97	2.23	1.93	2.98	0.57	0.57
2021	M	M	0.97	0.51	3.22	2.23	0.98	M	M	M	M	M
2022	M	M	M	M	M	M	1.48	1.57	0.96	1.20	1.06	1.01
2023	0.03	0.08	M	1.23	1.22	2.07	3.38	3.99	1.40	2.10	0.68	0.13
2024	M	0.14	0.25	0.99	0.97	3.13	1.59	2.12	1.14	2.47	2.07	0.85
2025	0.06	M	0.22	2.11	2.10	2.66	2.72	1.57	1.04	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	M	5.8	M	M	M	M	M	M	M	M	M	M
2001	6.4	9.3	M	9.4	7.3	7.5	6.0	6.1	6.7	7.5	7.6	7.8
2002	6.9	8.4	10.4	8.5	9.7	8.0	6.6	6.6	6.4	1.3	8.0	8.0
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	4.2	M	M	M	7.2	5.2	4.3	6.0	6.4	7.6	7.1
2005	7.8	8.0	9.3	9.2	7.7	7.3	5.9	5.9	7.6	1.6	0.0	0.0
2006	0.0	0.0	0.9	7.8	7.9	6.3	5.4	7.2	5.8	8.1	7.1	7.9
2007	8.1	10.3	9.7	9.0	8.7	7.6	5.9	6.2	7.8	7.2	8.1	7.8
2008	7.0	7.6	9.3	8.4	8.0	6.3	6.1	6.3	5.7	7.4	8.1	8.2
2009	7.0	8.5	8.6	9.4	8.8	7.5	6.0	6.4	6.0	6.9	7.1	7.3
2010	8.0	9.5	7.1	8.6	8.2	6.4	6.1	5.8	6.4	9.7	7.5	6.7
2011	7.7	8.2	8.9	9.8	6.5	6.4	5.9	2.4	5.9	7.1	7.0	6.6
2012	7.8	7.5	8.8	9.1	7.5	5.5	7.2	6.1	6.6	7.2	6.4	7.9
2013	8.6	7.5	7.5	9.2	6.6	5.6	6.4	5.9	7.1	7.0	9.0	6.5
2014	7.2	7.4	8.8	8.7	6.6	5.9	6.7	5.4	6.9	6.8	7.9	7.1
2015	7.4	7.7	9.5	8.4	8.8	6.5	6.5	0.8	0.0	3.0	7.7	6.9
2016	7.8	8.1	8.2	9.2	7.6	6.9	6.1	5.5	6.1	5.9	7.3	7.2
2017	7.3	7.3	9.3	7.3	7.0	7.0	6.2	6.6	5.4	7.1	8.0	8.1
2018	8.0	7.0	8.0	8.2	8.4	7.7	6.1	5.7	6.3	8.0	8.6	6.8
2019	8.4	10.4	8.8	10.1	7.6	6.7	6.3	5.8	5.7	6.2	7.3	7.4
2020	5.8	8.2	7.3	8.6	8.5	6.3	5.2	6.7	6.2	6.6	7.2	6.9
2021	7.2	6.4	9.6	8.6	7.9	6.7	6.4	5.0	6.2	5.0	7.5	7.8
2022	7.1	7.9	8.9	9.1	7.1	5.8	6.2	4.9	6.5	5.7	7.5	7.3
2023	6.0	7.6	7.5	9.0	9.3	5.1	4.6	5.7	4.4	5.4	6.9	6.0
2024	7.1	6.2	8.6	8.6	6.8	6.0	5.1	4.9	5.6	6.8	7.0	6.3
2025	8.2	8.9	8.2	8.1	6.9	6.9	6.0	5.1	5.4	5.3	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	13.82	10.23	24.10	26.55	51.68	73.40	M	68.40	M	34.00	M	30.40
2001	15.25	16.38	31.10	43.59	68.67	70.84	73.10	74.16	64.62	49.70	38.72	28.43
2002	16.58	19.29	28.01	42.99	56.22	66.27	72.16	74.48	66.15	44.92	30.16	21.55
2003	6.78	12.32	26.74	37.73	61.02	72.15	71.28	69.39	68.37	47.81	36.68	22.73
2004	12.70	24.70	M	M	M	58.05	68.54	64.23	58.51	45.72	29.82	9.02
2005	9.95	21.08	29.56	45.61	58.19	74.29	78.52	M	48.20	51.65	35.33	19.56
2006	22.02	9.69	24.49	38.87	56.53	66.76	67.63	67.04	53.19	43.19	33.97	24.13
2007	16.33	13.43	27.04	46.03	64.08	72.25	73.85	69.23	65.10	54.28	33.80	18.16
2008	17.72	18.12	23.65	46.07	58.81	67.76	74.20	72.52	63.68	50.40	36.20	19.81
2009	7.04	20.06	30.66	46.60	58.45	71.10	71.06	73.76	64.49	44.01	40.97	21.37
2010	20.94	25.68	36.89	50.14	65.68	69.45	76.45	76.96	61.67	48.45	36.43	24.62
2011	12.57	16.93	28.54	43.14	59.85	68.97	75.59	72.61	67.30	52.53	42.09	24.97
2012	17.68	21.92	36.81	47.27	64.96	72.31	76.83	75.95	66.49	51.61	35.89	23.65
2013	17.39	21.05	34.60	44.89	63.07	65.95	77.37	71.40	62.74	52.41	34.23	12.71
2014	13.09	15.94	20.04	42.88	60.25	73.92	76.12	74.73	63.80	52.79	33.69	24.14
2015	9.52	5.73	28.30	45.41	65.94	69.88	72.44	76.47	71.85	46.97	38.56	30.79
2016	19.68	18.56	28.10	37.42	62.61	69.58	71.05	75.54	65.92	51.26	41.31	22.49
2017	21.90	21.39	25.07	43.75	60.25	66.10	73.90	70.50	66.35	56.14	33.19	13.95
2018	12.32	21.89	32.15	38.23	60.92	69.23	79.92	75.68	65.82	41.72	28.36	19.04
2019	11.75	14.80	28.98	40.53	56.95	67.58	77.79	72.58	59.87	50.30	30.47	21.83
2020	17.90	21.21	29.41	38.61	56.84	71.41	75.56	71.98	61.07	46.36	38.86	26.88
2021	19.33	20.08	33.85	50.39	61.14	71.60	70.93	78.78	64.89	54.77	36.68	21.61
2022	6.74	15.87	27.11	43.02	64.29	69.71	73.47	74.13	64.55	56.50	38.27	27.19
2023	19.95	18.08	32.27	46.88	61.55	70.37	76.42	69.40	69.31	56.14	32.94	28.26
2024	19.97	24.38	35.35	49.76	65.17	73.95	78.03	74.52	69.76	53.47	38.41	23.95
2025	15.22	15.61	31.36	46.79	64.30	70.43	74.19	74.54	65.03	55.00	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	13.00	4.65	24.10	23.10	49.36	72.10	M	64.90	M	33.30	M	28.80
2001	-6.93	-5.22	26.40	25.79	41.19	50.73	52.81	52.57	44.20	36.35	25.83	17.87
2002	-0.61	-1.06	5.21	26.57	36.34	44.92	53.54	52.34	43.87	30.45	17.02	5.87
2003	-11.03	-11.54	4.55	20.99	37.85	48.66	53.73	53.33	45.07	33.35	24.31	8.02
2004	12.70	7.70	M	M	M	54.50	60.28	60.44	56.61	40.92	26.93	2.50
2005	-13.61	-0.33	9.60	30.20	38.85	51.76	52.94	M	48.20	38.54	23.62	6.57
2006	3.72	3.16	19.74	35.85	49.00	60.49	62.37	61.40	49.79	43.00	31.08	19.84
2007	-2.04	-7.43	6.44	28.10	37.84	48.24	51.86	49.17	43.36	36.61	20.30	1.05
2008	-0.21	-4.90	0.12	28.68	36.82	50.06	55.57	51.97	42.59	34.77	25.39	-0.34
2009	-14.87	-0.28	5.15	29.97	34.58	48.82	54.02	53.50	42.95	32.07	27.45	10.16
2010	4.13	15.48	13.50	31.58	41.56	47.74	57.42	52.83	45.04	34.77	21.47	12.27
2011	-1.46	-3.36	8.00	24.95	37.83	48.27	54.17	54.14	45.31	36.61	26.86	8.52
2012	-2.58	1.05	18.67	28.90	41.28	48.27	54.99	54.44	44.73	37.54	22.87	11.58
2013	-3.66	2.34	22.05	25.67	39.90	47.29	52.67	52.36	44.57	36.92	22.22	-1.11
2014	-7.32	-3.06	-2.93	24.21	40.90	51.22	55.31	51.99	43.08	35.80	19.71	8.66
2015	-12.12	-19.44	0.45	24.04	40.56	47.01	52.51	55.17	46.86	30.58	26.99	21.53
2016	3.54	-2.35	7.39	18.31	39.22	49.85	53.62	54.40	46.70	35.57	31.32	7.26
2017	5.58	1.39	5.36	29.44	41.14	48.11	51.03	50.91	47.03	37.10	18.93	-0.84
2018	-7.78	-1.05	16.63	21.81	35.81	45.75	56.45	55.71	42.95	30.45	18.59	3.49
2019	-8.44	-3.19	8.34	25.68	35.23	45.17	54.43	52.08	42.56	32.92	17.53	5.87
2020	1.72	-2.38	8.82	24.34	38.13	49.71	56.38	52.98	43.47	32.24	25.17	12.16
2021	8.18	2.21	12.85	29.89	38.25	51.50	51.18	55.04	47.99	38.41	25.24	3.84
2022	-16.07	-7.43	11.36	27.74	37.83	48.93	55.01	53.38	43.41	35.60	24.43	14.89
2023	3.26	-6.33	13.43	27.40	37.81	49.30	58.07	51.90	46.66	41.39	20.66	15.35
2024	2.76	2.10	18.96	27.48	42.10	51.48	56.42	52.91	47.90	35.97	29.14	9.93
2025	0.12	-2.27	11.66	26.22	39.36	47.87	55.55	50.94	42.55	31.27	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	13.41	7.44	24.10	24.82	50.52	72.75	M	66.65	M	33.65	M	29.60
2001	4.16	5.58	28.75	34.69	54.93	60.79	62.95	63.37	54.41	43.02	32.28	23.15
2002	7.99	9.12	16.61	34.78	46.28	55.59	62.85	63.41	55.01	37.69	23.59	13.71
2003	-2.12	0.39	15.64	29.36	49.43	60.41	62.50	61.36	56.72	40.58	30.50	15.37
2004	12.70	16.20	M	M	M	56.27	64.41	62.34	57.56	43.32	28.38	5.76
2005	-1.83	10.37	19.58	37.90	48.52	63.02	65.73	M	48.20	45.09	29.47	13.07
2006	12.87	6.42	22.12	37.36	52.77	63.63	65.00	64.22	51.49	43.10	32.52	21.99
2007	7.15	3.00	16.74	37.06	50.96	60.25	62.86	59.20	54.23	45.45	27.05	9.60
2008	8.75	6.61	11.89	37.38	47.81	58.91	64.89	62.25	53.14	42.59	30.80	9.74
2009	-3.92	9.89	17.90	38.28	46.51	59.96	62.54	63.63	53.72	38.04	34.21	15.77
2010	12.53	20.57	25.20	40.86	53.62	58.59	66.94	64.89	53.36	41.61	28.95	18.45
2011	5.56	6.78	18.27	34.05	48.84	58.62	64.88	63.37	56.31	44.57	34.48	16.75
2012	7.55	11.48	27.74	38.09	53.12	60.29	65.91	65.20	55.61	44.57	29.38	17.61
2013	6.86	11.70	28.32	35.28	51.48	56.62	65.02	61.88	53.66	44.66	28.22	5.80
2014	2.89	6.44	8.56	33.54	50.57	62.57	65.72	63.36	53.44	44.30	26.70	16.40
2015	-1.30	-6.86	14.37	34.72	53.25	58.44	62.48	65.82	59.35	38.78	32.78	26.16
2016	11.61	8.10	17.74	27.87	50.92	59.71	62.34	64.97	56.31	43.42	36.32	14.87
2017	13.74	11.39	15.22	36.60	50.69	57.10	62.46	60.70	56.69	46.62	26.06	6.55
2018	2.27	10.42	24.39	30.02	48.37	57.49	68.19	65.70	54.39	36.08	23.48	11.27
2019	1.66	5.81	18.66	33.11	46.09	56.38	66.11	62.33	51.22	41.61	24.00	13.85
2020	9.81	9.42	19.11	31.47	47.49	60.56	65.97	62.48	52.27	39.30	32.02	19.52
2021	13.76	11.15	23.35	40.14	49.70	61.55	61.06	66.91	56.44	46.59	30.96	12.72
2022	-4.66	4.22	19.23	35.38	51.06	59.32	64.24	63.75	53.98	46.05	31.35	21.04
2023	11.61	5.87	22.85	37.14	49.68	59.84	67.25	60.65	57.98	48.77	26.80	21.81
2024	11.37	13.24	27.15	38.62	53.64	62.71	67.22	63.71	58.83	44.72	33.77	16.94
2025	7.67	6.67	21.51	36.50	51.83	59.15	64.87	62.74	53.79	43.13	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	69.4%	M	M	M	M	M	M	M	M	M	M
2001	76.9%	75.5%	M	65.1%	62.4%	72.7%	80.7%	76.6%	79.9%	81.6%	81.3%	79.1%
2002	77.6%	77.3%	70.6%	70.6%	65.4%	68.0%	80.1%	76.2%	80.3%	79.2%	83.1%	78.5%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	55.9%	M	M	M	75.9%	80.0%	85.9%	77.1%	79.0%	82.1%	77.0%
2005	70.9%	73.4%	70.4%	69.2%	67.5%	69.8%	72.4%	76.2%	78.9%	82.7%	82.8%	80.2%
2006	82.6%	76.4%	74.8%	67.9%	72.4%	74.0%	82.1%	74.7%	80.8%	81.6%	83.0%	81.9%
2007	78.5%	69.5%	72.9%	69.6%	58.6%	72.9%	79.5%	84.0%	78.2%	79.4%	79.0%	77.1%
2008	75.9%	70.9%	78.4%	74.6%	65.5%	80.2%	79.1%	79.6%	80.6%	78.3%	78.5%	74.7%
2009	71.4%	77.1%	66.8%	67.4%	67.2%	68.7%	81.9%	77.7%	79.1%	83.3%	79.3%	81.0%
2010	78.4%	81.0%	67.2%	65.7%	59.2%	70.1%	79.3%	75.4%	83.7%	79.6%	82.3%	86.0%
2011	78.6%	73.3%	74.8%	67.4%	74.6%	77.9%	81.5%	86.8%	82.3%	77.4%	81.7%	83.1%
2012	76.7%	75.8%	72.8%	64.1%	67.4%	77.0%	72.6%	80.4%	79.8%	81.2%	78.3%	83.5%
2013	74.7%	74.4%	75.4%	68.6%	70.3%	74.8%	71.9%	79.2%	79.3%	78.6%	77.2%	77.0%
2014	69.8%	69.9%	67.3%	71.1%	75.0%	71.5%	71.7%	80.5%	82.5%	83.3%	80.0%	83.3%
2015	77.0%	69.9%	61.4%	65.7%	61.6%	68.7%	80.8%	80.4%	75.4%	78.2%	83.2%	85.2%
2016	81.9%	78.2%	73.8%	65.9%	69.5%	75.7%	82.4%	77.3%	79.4%	83.9%	84.9%	79.5%
2017	77.4%	74.1%	69.6%	76.5%	72.4%	72.5%	72.0%	77.0%	80.3%	78.7%	77.8%	74.6%
2018	76.0%	73.2%	72.5%	69.5%	59.5%	62.6%	70.7%	79.3%	77.9%	79.1%	82.4%	81.6%
2019	75.8%	71.3%	67.3%	71.1%	65.4%	72.8%	72.4%	78.6%	85.0%	84.3%	80.3%	82.6%
2020	82.7%	75.9%	75.5%	64.8%	62.7%	68.0%	76.7%	75.8%	79.5%	81.2%	78.3%	79.9%
2021	78.8%	72.1%	67.5%	66.2%	60.3%	70.4%	75.1%	75.2%	78.8%	82.7%	79.0%	77.6%
2022	72.3%	73.2%	75.5%	65.8%	60.5%	74.9%	73.6%	77.7%	77.1%	75.5%	78.5%	80.0%
2023	79.2%	71.2%	71.6%	65.2%	56.4%	74.2%	83.4%	83.0%	84.7%	84.2%	80.6%	80.9%
2024	79.9%	77.6%	70.8%	63.7%	67.5%	75.5%	77.4%	81.2%	81.0%	79.7%	82.7%	79.3%
2025	77.0%	70.6%	69.4%	65.9%	67.2%	69.6%	76.0%	73.8%	76.8%	75.6%	M	M