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 (USW00004854) 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
1998	M	M	M	0.00	1.88	1.47	1.12	3.04	2.41	2.55	3.27	0.75
1999	1.38	1.56	0.39	1.50	3.18	4.87	4.00	1.34	2.88	2.32	1.00	2.20
2000	1.03	1.01	1.14	1.42	4.18	2.95	1.91	3.15	5.53	0.94	2.61	0.81
2001	0.88	1.71	0.47	3.03	4.41	2.50	1.23	1.91	4.53	5.17	2.05	2.36
2002	0.68	2.16	2.45	3.36	4.03	2.80	1.76	4.22	0.48	2.44	1.40	0.42
2003	0.70	0.63	1.22	2.31	3.02	2.13	3.74	3.09	3.49	2.21	4.51	1.82
2004	1.51	1.34	1.89	2.46	4.36	1.85	4.02	2.84	1.03	4.25	2.50	2.20
2005	2.04	0.98	0.80	1.70	2.29	2.00	3.21	5.79	1.96	1.36	3.85	1.69
2006	2.40	1.16	1.41	2.19	3.80	2.36	1.57	2.97	5.18	5.40	1.76	1.99
2007	0.87	0.71	2.05	1.83	1.99	5.14	2.03	4.26	3.00	3.11	1.57	1.56
2008	4.45	1.29	1.04	3.07	3.67	4.22	2.65	1.26	3.53	1.65	2.29	3.06
2009	0.51	1.53	0.81	2.43	2.61	2.10	1.50	5.84	3.51	4.75	1.55	1.14
2010	0.24	0.11	0.12	2.83	2.17	4.05	2.66	3.16	6.03	1.80	0.99	0.43
2011	0.49	0.46	1.36	5.37	3.32	4.76	0.34	4.14	4.86	3.25	3.45	1.18
2012	1.64	0.83	1.82	2.06	3.41	4.23	1.79	1.67	3.04	4.27	0.83	1.86
2013	2.38	1.08	1.48	3.27	3.80	1.32	2.74	1.29	2.61	5.86	4.81	0.98
2014	0.96	0.34	0.50	4.17	1.80	3.97	3.86	3.47	3.77	4.44	3.46	1.10
2015	0.43	0.16	0.46	1.68	3.98	2.31	1.22	2.14	4.98	2.61	3.29	3.07
2016	1.44	1.11	3.75	2.18	2.10	2.17	2.43	3.24	3.41	1.82	1.26	1.40
2017	1.66	1.95	2.05	3.80	1.74	4.10	1.89	3.87	2.22	7.07	2.18	1.17
2018	1.02	1.62	0.63	2.94	2.79	0.88	3.54	1.25	3.90	4.24	1.56	1.09
2019	0.87	1.51	0.97	3.21	4.61	4.34	2.79	1.03	5.93	4.55	2.48	3.00
2020	1.13	0.74	2.27	3.55	3.25	3.09	5.34	2.68	4.32	7.50	1.63	0.60
2021	0.39	0.20	0.65	1.83	3.24	1.31	7.92	4.46	2.28	1.34	2.21	1.63
2022	0.93	0.80	3.71	2.49	0.87	2.52	1.99	4.01	2.16	3.11	2.25	1.17
2023	1.05	1.55	1.89	3.04	1.38	4.75	2.16	1.97	2.54	4.31	0.84	1.30
2024	0.59	0.87	2.26	4.07	4.52	4.76	4.50	2.41	0.68	1.42	2.99	1.95
2025	0.68	0.95	2.45	1.44	1.82	2.55	3.21	M	M	M	M	M
NCEI Climatology	1.24	1.13	1.42	2.73	3.01	2.76	2.81	3.25	3.64	3.63	2.28	1.62

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	M	M	7.0	7.8	7.3	6.6	5.9	6.6	8.0	9.4	9.4
1999	8.8	8.4	7.9	8.0	8.8	7.1	7.7	6.1	6.9	8.7	9.7	8.4
2000	8.2	8.2	8.6	8.0	8.2	8.6	6.7	5.9	8.5	7.4	7.8	6.9
2001	8.4	9.2	6.7	9.3	8.4	6.6	7.0	7.3	7.0	10.0	9.6	9.0
2002	9.6	9.8	8.7	8.9	8.9	7.0	7.3	6.4	7.9	7.0	7.9	9.9
2003	9.1	8.2	8.1	8.9	7.3	6.3	7.4	5.9	7.8	7.0	9.3	8.0
2004	8.0	7.4	8.7	8.5	7.8	8.3	6.0	7.1	7.0	8.6	7.6	9.4
2005	7.3	7.0	5.6	6.8	6.8	7.1	5.9	5.6	7.4	6.5	9.7	7.8
2006	7.1	7.9	5.7	6.5	7.3	5.2	6.5	5.6	5.9	6.9	6.1	9.4
2007	7.7	7.9	8.2	7.0	7.4	5.7	5.3	5.6	7.4	7.8	8.2	7.8
2008	8.8	6.3	6.6	8.3	7.3	7.0	6.8	5.2	5.6	6.6	6.5	9.3
2009	6.3	7.4	7.3	7.8	8.2	5.4	6.3	6.3	4.0	6.2	6.0	6.7
2010	7.6	4.6	5.4	7.7	6.9	5.7	6.0	6.8	7.4	6.4	8.8	7.9
2011	6.9	9.5	7.0	8.0	8.5	7.4	6.2	5.2	5.7	6.3	8.5	7.9
2012	8.1	7.3	8.0	6.6	7.2	7.3	4.8	6.3	5.6	7.4	7.4	6.7
2013	8.8	7.2	6.7	8.3	6.6	5.5	5.8	5.7	6.2	6.9	9.5	8.2
2014	9.9	8.5	7.2	7.9	7.3	7.0	6.7	5.7	6.5	7.5	9.0	7.5
2015	8.2	7.2	8.4	7.4	8.0	5.8	6.5	7.0	6.0	8.1	8.5	9.6
2016	7.8	8.0	6.8	6.6	6.3	7.2	6.8	6.1	7.1	7.1	7.7	10.2
2017	7.1	8.2	8.0	8.2	7.2	7.5	5.7	6.1	5.0	8.5	8.1	7.5
2018	9.4	8.5	6.5	6.5	6.6	6.5	6.3	6.5	6.7	8.0	7.4	7.2
2019	7.9	7.9	7.2	7.6	6.6	5.9	5.9	5.6	7.3	8.1	7.3	8.8
2020	7.7	8.4	7.7	7.2	6.4	6.2	5.7	5.7	6.9	7.1	9.9	7.9
2021	5.9	7.0	8.6	6.9	6.3	6.7	5.4	5.1	6.1	5.6	7.4	9.3
2022	7.4	8.9	7.5	8.4	8.0	7.6	6.4	5.6	5.9	7.0	9.2	9.0
2023	7.1	9.3	7.2	8.8	5.8	5.1	4.9	5.8	5.1	6.5	8.1	7.0
2024	7.7	7.0	7.8	8.7	6.5	7.8	5.1	5.4	5.2	7.5	7.6	7.3
2025	8.8	7.5	8.8	8.7	6.8	7.4	6.5	M	M	M	M	M
NCEI Climatology	M	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
1998	M	M	M	55.27	70.53	71.30	76.35	77.13	70.10	57.29	42.33	34.17
1999	22.68	31.68	37.23	54.27	67.06	73.84	78.39	72.71	68.30	52.87	46.46	31.24
2000	24.23	32.39	45.97	50.64	64.19	69.90	73.94	72.97	65.27	58.58	38.90	21.26
2001	27.95	25.25	33.49	54.71	65.92	74.19	78.18	78.92	65.38	54.67	49.82	35.64
2002	31.20	32.09	32.34	50.72	58.19	73.81	81.82	76.62	73.57	49.13	37.77	30.98
2003	21.29	21.85	36.80	49.56	62.78	73.30	77.19	77.56	67.37	53.43	42.72	32.75
2004	17.73	29.28	37.84	52.12	60.44	70.32	73.76	70.53	73.94	55.28	41.71	27.63
2005	22.13	29.72	34.13	56.54	61.09	79.58	80.09	75.32	71.77	57.93	43.01	26.44
2006	32.75	25.64	38.47	56.35	65.11	73.51	81.00	74.86	63.82	49.91	42.29	34.78
2007	27.68	20.82	41.42	48.83	68.90	77.50	77.55	78.13	71.03	61.42	38.50	28.29
2008	27.47	24.72	32.14	55.61	60.60	72.32	76.94	77.04	68.47	54.05	39.22	25.27
2009	18.53	28.73	38.14	50.63	62.89	71.32	71.18	72.64	71.11	50.12	47.71	28.17
2010	25.88	27.96	49.06	59.29	68.54	70.93	80.03	79.30	64.32	56.99	44.68	26.32
2011	20.32	27.39	34.32	48.97	64.16	72.37	82.55	76.48	67.17	57.23	45.24	33.14
2012	29.61	31.88	52.26	52.70	69.61	75.93	82.04	77.58	67.70	53.52	41.40	33.00
2013	27.60	25.67	32.87	45.73	68.44	73.43	78.38	76.97	68.47	55.84	37.93	22.45
2014	17.52	18.29	29.32	46.77	63.87	74.57	73.16	74.13	66.57	52.42	33.60	30.71
2015	21.81	14.22	35.29	49.90	68.19	72.93	78.90	75.77	72.87	54.61	48.77	40.26
2016	27.23	30.07	42.68	48.00	68.58	75.14	80.35	81.33	72.97	59.13	51.07	30.06
2017	30.23	35.86	36.39	57.37	64.23	75.80	78.15	72.42	73.24	59.55	38.07	24.68
2018	25.32	28.64	33.87	40.53	72.00	75.14	80.07	79.67	69.80	51.52	32.10	31.35
2019	20.16	25.21	32.04	48.30	59.81	71.27	78.61	74.81	68.67	51.77	33.23	31.03
2020	29.48	27.93	39.48	47.07	61.56	77.13	81.10	76.39	65.40	49.52	49.50	33.03
2021	30.77	27.43	46.32	54.57	66.13	80.37	78.68	81.45	72.20	63.19	41.63	35.10
2022	22.29	26.64	35.71	48.57	71.23	77.20	79.87	78.32	71.27	58.48	46.63	31.97
2023	30.90	32.07	37.68	55.87	69.81	77.17	79.58	75.77	72.63	56.71	43.20	39.03
2024	28.45	40.83	44.87	56.33	71.39	75.37	79.94	77.71	76.63	64.03	46.23	31.32
2025	24.84	27.11	43.48	53.48	61.87	76.73	79.00	M	M	M	M	M
NCEI Climatology	24.61	27.16	37.49	50.69	64.69	73.70	77.90	75.80	68.20	54.71	41.09	30.19

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	M	M	31.67	47.47	51.33	55.71	56.29	49.40	39.13	31.70	19.63
1999	10.32	15.01	18.35	34.40	44.77	53.90	59.67	52.45	44.63	35.92	30.53	18.74
2000	9.61	16.59	27.13	30.47	44.65	51.20	53.06	52.71	45.80	38.42	29.27	8.10
2001	14.06	11.79	17.90	33.97	45.38	50.62	54.18	55.61	46.28	36.92	34.59	24.67
2002	19.87	14.55	14.58	31.29	37.92	54.23	60.21	55.87	51.66	33.90	24.52	17.73
2003	7.34	2.92	15.54	27.69	42.05	49.09	54.44	56.74	47.99	35.67	28.54	20.02
2004	5.23	10.22	23.35	31.44	41.31	49.70	54.40	50.49	50.51	39.16	28.71	12.73
2005	5.84	14.88	11.35	33.75	39.22	58.29	56.65	56.36	50.29	40.20	28.36	17.82
2006	22.13	11.38	18.97	34.20	45.53	50.56	58.37	54.74	46.54	34.60	30.72	25.03
2007	15.00	5.07	22.39	27.40	44.48	52.13	54.32	55.65	49.33	43.00	24.13	17.45
2008	15.26	8.15	12.96	34.33	37.31	53.06	55.51	51.83	47.87	36.00	27.06	13.01
2009	1.77	9.93	17.86	30.96	39.26	49.26	51.50	52.77	46.27	35.85	31.12	15.37
2010	14.50	12.79	24.46	35.48	45.44	52.15	58.55	59.52	45.66	35.45	29.42	16.66
2011	5.13	11.79	13.42	29.98	43.84	50.50	58.18	55.74	45.51	37.81	30.60	20.85
2012	15.13	16.40	30.48	29.93	44.32	53.90	58.51	55.10	44.00	36.52	28.87	22.90
2013	14.77	10.02	17.81	27.83	43.41	50.83	56.04	53.00	46.33	37.29	23.93	9.87
2014	4.00	0.43	4.42	29.00	41.97	53.50	51.38	54.26	46.30	37.65	22.23	19.52
2015	3.38	-7.75	14.39	30.10	44.23	50.43	55.45	57.10	54.03	38.87	31.80	29.71
2016	15.52	13.14	25.10	28.00	42.58	51.00	58.19	59.90	53.10	42.45	33.50	20.68
2017	18.29	21.14	20.94	36.03	43.61	54.63	55.75	53.58	48.99	40.96	25.50	11.16
2018	11.58	11.71	18.55	20.70	47.06	51.69	57.50	58.86	50.67	36.29	22.60	21.03
2019	4.48	7.04	12.26	30.80	37.74	49.00	56.52	51.03	50.37	36.35	20.53	19.87
2020	19.58	13.72	22.81	27.07	39.63	50.27	58.87	56.36	45.63	32.71	32.77	24.55
2021	19.68	9.25	26.39	35.53	41.45	56.40	57.87	60.81	50.77	46.87	29.17	22.58
2022	7.19	7.68	18.90	29.77	47.63	51.13	56.58	56.68	50.47	37.16	31.27	22.97
2023	22.87	16.54	20.97	35.50	41.61	52.57	57.48	53.84	51.77	44.13	28.37	29.00
2024	20.84	20.83	26.23	35.60	46.26	56.23	59.94	57.19	51.03	40.68	34.37	19.87
2025	10.16	13.04	22.84	32.11	42.45	54.17	57.70	M	M	M	M	M
NCEI Climatology	10.90	9.79	17.90	29.90	41.60	51.11	55.30	53.40	47.11	36.90	27.10	18.00

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	M	M	43.47	59.00	61.32	66.03	66.71	59.75	48.21	37.02	26.90
1999	16.50	23.35	27.79	44.34	55.92	63.87	69.03	62.58	56.47	44.40	38.50	24.99
2000	16.92	24.49	36.55	40.55	54.42	60.55	63.50	62.84	55.53	48.50	34.08	14.68
2001	21.00	18.52	25.70	44.34	55.65	62.41	66.18	67.26	55.83	45.80	42.21	30.15
2002	25.54	23.32	23.46	41.00	48.05	64.02	71.02	66.24	62.61	41.52	31.14	24.36
2003	14.32	12.39	26.17	38.62	52.41	61.20	65.81	67.15	57.68	44.55	35.63	26.39
2004	11.48	19.75	30.60	41.78	50.88	60.01	64.08	60.51	62.23	47.22	35.21	20.18
2005	13.99	22.30	22.74	45.15	50.16	68.93	68.37	65.84	61.03	49.06	35.69	22.13
2006	27.44	18.51	28.72	45.27	55.32	62.04	69.68	64.80	55.18	42.25	36.51	29.91
2007	21.34	12.95	31.90	38.12	56.69	64.82	65.94	66.89	60.18	52.21	31.32	22.87
2008	21.36	16.43	22.55	44.97	48.95	62.69	66.23	64.44	58.17	45.03	33.14	19.14
2009	10.15	19.33	28.00	40.79	51.07	60.29	61.34	62.70	58.69	42.98	39.42	21.77
2010	20.19	20.37	36.76	47.39	56.99	61.54	69.29	69.41	54.99	46.22	37.05	21.49
2011	12.73	19.59	23.87	39.48	54.00	61.44	70.37	66.11	56.34	47.52	37.92	26.99
2012	22.37	24.14	41.37	41.32	56.97	64.92	70.28	66.34	55.85	45.02	35.13	27.95
2013	21.19	17.84	25.34	36.78	55.93	62.13	67.21	64.98	57.40	46.56	30.93	16.16
2014	10.76	9.36	16.87	37.88	52.92	64.03	62.27	64.19	56.43	45.03	27.92	25.11
2015	12.60	3.23	24.84	40.00	56.21	61.68	67.18	66.44	63.45	46.74	40.28	34.98
2016	21.37	21.60	33.89	38.00	55.58	63.07	69.27	70.61	63.03	50.79	42.28	25.37
2017	24.26	28.50	28.66	46.70	53.92	65.22	66.95	63.00	61.12	50.26	31.78	17.92
2018	18.45	20.18	26.21	30.62	59.53	63.41	68.78	69.26	60.23	43.90	27.35	26.19
2019	12.32	16.12	22.15	39.55	48.77	60.13	67.56	62.92	59.52	44.06	26.88	25.45
2020	24.53	20.83	31.15	37.07	50.60	63.70	69.98	66.37	55.52	41.11	41.13	28.79
2021	25.23	18.34	36.35	45.05	53.79	68.38	68.27	71.13	61.48	55.03	35.40	28.84
2022	14.74	17.16	27.31	39.17	59.43	64.17	68.23	67.50	60.87	47.82	38.95	27.47
2023	26.89	24.30	29.32	45.68	55.71	64.87	68.53	64.81	62.20	50.42	35.78	34.02
2024	24.65	30.83	35.55	45.97	58.82	65.80	69.94	67.45	63.83	52.35	40.30	25.60
2025	17.50	20.07	33.16	42.80	52.16	65.45	68.35	M	M	M	M	M
NCEI Climatology	17.75	18.47	27.70	40.30	53.15	62.41	66.60	64.60	57.65	45.80	34.10	24.09

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
1998	M	M	M	57.8%	64.7%	75.4%	70.7%	76.3%	79.2%	80.8%	82.2%	81.1%
1999	82.6%	77.6%	64.0%	57.7%	65.7%	75.4%	76.2%	74.6%	73.2%	73.0%	71.7%	82.5%
2000	81.0%	78.9%	71.0%	61.4%	70.6%	75.3%	72.4%	77.6%	76.8%	74.4%	82.9%	83.6%
2001	84.9%	80.8%	74.0%	66.8%	66.9%	72.5%	68.6%	70.9%	81.2%	77.1%	79.1%	83.9%
2002	80.1%	75.5%	75.6%	69.3%	67.6%	74.0%	68.6%	74.7%	73.4%	79.2%	78.6%	85.5%
2003	83.0%	82.1%	72.6%	65.6%	64.6%	66.5%	74.3%	75.6%	76.1%	79.6%	84.1%	80.8%
2004	80.8%	79.0%	79.3%	65.1%	75.0%	67.5%	74.7%	74.4%	71.0%	81.0%	80.2%	83.5%
2005	80.8%	80.3%	70.9%	54.5%	67.2%	69.6%	68.2%	74.5%	71.3%	77.6%	81.5%	84.9%
2006	84.1%	77.6%	68.3%	59.0%	67.9%	65.1%	68.5%	70.3%	78.9%	76.5%	79.5%	82.1%
2007	78.7%	75.5%	66.9%	65.2%	58.2%	64.8%	65.6%	67.6%	71.5%	75.0%	77.1%	82.1%
2008	82.7%	78.8%	68.8%	60.2%	63.5%	72.7%	69.2%	67.3%	75.6%	76.2%	82.7%	84.9%
2009	81.8%	78.9%	68.2%	61.0%	58.7%	68.9%	72.1%	76.8%	73.7%	82.4%	78.5%	82.2%
2010	80.9%	76.1%	59.0%	59.1%	62.0%	77.1%	72.1%	74.5%	79.9%	71.0%	75.9%	80.3%
2011	78.8%	73.4%	69.0%	69.6%	66.6%	70.1%	68.0%	74.2%	78.7%	76.1%	78.5%	83.9%
2012	83.8%	78.5%	72.0%	61.9%	59.6%	65.6%	68.7%	68.0%	73.6%	79.2%	78.2%	84.6%
2013	84.0%	82.3%	75.6%	74.0%	62.9%	69.1%	69.6%	69.7%	74.8%	82.1%	80.9%	83.8%
2014	80.5%	77.0%	69.8%	68.5%	66.3%	66.8%	71.7%	75.6%	78.7%	82.8%	82.9%	86.6%
2015	83.6%	75.3%	67.8%	66.4%	68.0%	72.6%	68.9%	78.8%	79.0%	81.8%	78.8%	84.8%
2016	80.3%	76.0%	73.2%	61.8%	56.6%	58.8%	63.7%	67.1%	71.8%	75.7%	73.1%	76.3%
2017	77.3%	70.0%	67.0%	61.9%	59.5%	64.9%	67.0%	73.9%	72.7%	75.2%	77.8%	79.0%
2018	82.2%	82.8%	71.5%	69.7%	59.8%	67.0%	70.7%	75.1%	81.1%	87.0%	89.3%	90.9%
2019	87.9%	83.2%	69.9%	70.4%	73.8%	68.7%	72.1%	70.6%	80.4%	83.5%	83.4%	85.3%
2020	83.2%	75.7%	75.0%	66.2%	63.8%	67.3%	74.6%	78.3%	74.7%	78.7%	70.7%	73.1%
2021	73.8%	64.8%	55.7%	59.5%	56.1%	60.0%	64.9%	67.3%	66.0%	74.6%	72.9%	73.6%
2022	69.3%	66.5%	69.6%	65.9%	54.3%	58.2%	60.6%	66.2%	69.4%	69.1%	69.9%	76.8%
2023	79.0%	71.5%	66.7%	61.5%	52.5%	57.1%	65.1%	67.5%	71.2%	75.3%	69.4%	77.8%
2024	78.0%	67.7%	63.8%	61.4%	59.7%	66.3%	67.1%	68.3%	65.1%	59.5%	78.0%	81.1%
2025	76.0%	M	M	M	56.0%	68.1%	70.2%	M	M	M	M	M