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
1997	M	M	M	M	M	M	M	M	M	M	M	0.00
1998	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1999	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2000	0.30	0.15	0.00	0.00	0.47	0.04	0.00	0.00	0.00	0.00	0.00	0.00
2001	0.90	3.99	0.00	1.35	2.28	4.48	3.47	3.37	3.84	3.89	1.88	1.42
2002	1.86	3.20	3.81	4.81	4.55	2.96	2.12	0.80	4.75	3.77	4.16	1.89
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	0.09	0.06	0.81	5.16	2.42	4.82	5.09	6.19	4.33	4.04	3.41	4.46
2008	3.88	4.74	4.58	4.08	3.00	8.18	5.87	4.69	4.36	4.09	2.40	6.11
2009	4.04	2.43	1.97	3.41	4.26	2.56	6.65	3.88	4.37	4.45	2.63	5.00
2010	2.90	1.27	1.91	1.37	1.87	3.63	2.12	4.07	7.72	2.91	4.03	4.66
2011	0.90	3.86	2.85	5.08	5.67	3.74	5.57	6.43	4.02	3.92	2.69	3.14
2012	3.24	2.27	1.86	2.61	5.57	6.93	1.73	2.47	1.93	4.35	0.44	4.54
2013	1.60	1.83	2.19	2.51	7.32	3.88	3.76	3.72	3.41	3.41	4.56	3.24
2014	3.12	2.97	3.16	5.00	3.05	3.33	4.56	5.45	4.16	4.98	1.27	3.61
2015	3.60	0.83	1.95	4.57	5.05	4.93	5.47	4.85	3.99	6.82	3.59	4.40
2016	2.77	5.36	6.78	2.45	2.93	4.04	4.14	4.17	3.60	7.50	3.66	3.36
2017	4.13	3.14	2.71	5.47	4.80	3.73	2.46	1.24	2.54	6.21	5.39	2.17
2018	6.20	2.78	1.75	5.92	2.02	3.62	2.02	2.01	4.40	4.19	5.32	4.05
2019	1.46	2.14	3.36	6.12	0.28	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	1.27	6.28	3.72	2.07	5.99	2.89	3.73	4.19
2022	1.62	3.78	5.68	4.00	4.77	5.29	5.10	6.31	2.92	2.55	4.33	4.87
2023	1.30	3.71	2.72	3.16	1.77	3.83	9.34	7.02	2.59	3.81	3.79	3.26
2024	2.40	1.21	3.08	2.25	3.77	6.34	2.97	7.36	2.87	2.58	4.05	4.17
2025	2.28	2.77	3.19	3.20	4.58	6.82	7.86	2.63	1.73	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	M	M
1998	M	M	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	M	M	M
2000	5.3	6.9	M	8.7	7.8	M	M	3.4	M	M	M	11.5
2001	6.2	7.4	15.7	7.1	6.6	5.9	5.2	4.9	5.7	6.3	6.4	6.6
2002	6.8	7.6	8.8	7.0	7.3	5.6	5.1	5.1	5.0	6.2	6.8	6.5
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	4.1	M	M	M	5.8	5.0	6.1	3.9	5.9	5.5	7.3
2005	6.0	6.1	7.9	8.6	9.7	6.1	3.9	4.7	5.6	8.0	7.4	7.0
2006	7.6	7.7	6.1	7.5	8.8	6.1	5.0	5.1	4.8	6.4	6.6	5.7
2007	5.7	6.8	7.0	9.4	7.0	6.5	5.0	4.1	5.3	5.3	6.0	7.7
2008	6.5	6.9	7.5	8.1	6.7	6.6	5.3	5.6	4.2	5.5	6.6	6.8
2009	6.7	6.1	6.8	7.3	6.2	7.1	6.4	4.9	4.5	5.9	5.2	7.0
2010	7.2	9.0	8.2	7.0	5.3	5.0	4.7	4.9	6.0	6.4	6.8	5.8
2011	6.1	6.5	5.5	7.3	9.1	6.1	4.2	5.5	4.4	7.1	5.6	5.3
2012	7.0	5.9	6.6	7.2	5.9	6.1	4.2	5.3	5.3	7.1	4.4	7.3
2013	5.8	7.4	7.0	6.5	6.7	6.5	5.1	5.0	5.0	5.2	5.5	7.4
2014	5.7	5.9	6.6	7.3	7.6	4.5	4.7	4.8	5.7	7.6	7.5	7.5
2015	6.7	7.6	7.0	7.2	6.7	5.4	5.1	5.3	4.9	4.8	5.6	6.6
2016	6.6	6.5	6.2	5.8	6.3	5.1	5.5	4.6	4.7	4.8	5.8	5.1
2017	6.1	5.6	5.2	7.1	6.9	5.5	4.8	4.5	4.8	5.2	4.9	6.6
2018	6.3	5.4	7.6	6.8	5.9	6.0	4.8	4.1	4.4	6.5	7.5	4.3
2019	8.7	7.3	5.8	7.8	5.9	5.1	4.7	4.2	4.7	5.6	6.1	6.2
2020	5.9	6.2	6.9	7.5	6.0	6.1	5.1	5.2	4.1	4.6	5.5	5.1
2021	5.7	6.1	5.9	7.2	5.8	5.3	5.2	4.7	4.3	6.1	5.1	5.7
2022	5.5	6.4	6.1	6.2	6.0	5.3	5.1	5.9	6.6	7.4	18.3	0.0
2023	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	2.8	4.6	5.4
2024	6.7	4.4	6.7	8.0	6.7	5.7	5.1	4.2	5.8	5.0	6.0	5.2
2025	5.7	6.0	5.9	6.1	6.4	5.1	4.8	4.1	3.8	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	M	23.54
1998	18.06	25.50	30.46	49.29	65.63	69.03	72.93	73.96	64.10	51.13	37.04	29.04
1999	17.78	25.92	34.20	45.68	69.46	74.32	72.25	73.73	67.77	46.89	39.96	25.54
2000	13.81	21.63	35.64	42.05	56.68	65.92	71.43	71.10	60.79	50.35	37.62	18.70
2001	19.63	20.92	28.95	46.42	67.41	73.37	72.88	76.43	66.17	52.88	42.60	31.02
2002	24.22	24.52	31.21	46.48	58.39	68.40	77.64	79.81	72.92	48.06	35.18	26.66
2003	15.87	20.75	34.14	44.51	60.97	75.33	75.96	73.58	70.59	50.87	39.74	27.73
2004	22.80	33.10	M	M	M	62.85	70.89	67.23	61.47	49.05	33.02	16.30
2005	15.82	25.88	30.58	47.94	57.04	75.43	78.96	M	48.00	53.27	38.38	23.56
2006	24.79	10.85	27.83	42.41	56.10	67.80	71.12	69.77	57.11	46.93	36.96	27.79
2007	21.75	18.07	31.10	44.27	63.88	72.20	75.57	73.24	67.74	56.87	37.68	23.18
2008	23.27	22.50	27.48	47.33	59.92	69.76	75.53	72.48	66.09	51.92	38.74	24.42
2009	12.74	25.59	33.40	51.19	60.94	69.30	70.44	75.73	66.47	46.50	44.22	25.14
2010	24.81	27.52	39.55	54.01	67.62	70.87	81.01	76.43	63.05	51.54	39.21	26.33
2011	19.70	22.84	32.48	45.33	58.23	71.92	79.23	73.00	67.27	53.04	44.53	29.97
2012	21.61	26.33	39.61	49.99	65.51	72.90	79.03	76.77	67.75	53.01	38.68	27.45
2013	21.41	23.24	35.09	47.37	64.54	67.30	78.51	73.24	64.51	54.35	37.47	19.10
2014	18.44	21.10	25.13	44.48	61.98	74.26	76.27	75.30	65.74	53.76	36.71	28.55
2015	16.64	11.81	29.28	47.01	68.12	68.94	75.36	75.09	71.86	49.70	42.51	34.57
2016	25.06	25.95	33.53	43.69	63.76	72.01	75.78	76.95	68.40	53.33	41.60	23.22
2017	24.70	26.51	28.70	47.07	58.95	71.88	74.97	73.25	70.57	61.59	36.75	18.86
2018	18.08	28.21	34.42	42.23	65.83	70.73	80.98	78.51	68.43	45.78	30.66	24.44
2019	17.58	20.59	31.61	42.84	57.94	70.22	80.56	74.75	63.34	52.45	33.26	26.56
2020	24.34	26.28	35.04	44.01	63.46	74.86	79.27	73.52	65.13	50.33	42.58	31.07
2021	24.29	24.46	37.46	51.28	64.14	74.73	74.29	79.71	67.33	56.91	39.47	28.07
2022	14.30	21.82	31.98	47.15	65.78	70.86	77.74	75.41	66.11	57.72	40.79	31.48
2023	26.45	23.42	35.30	47.83	64.93	69.63	77.57	71.60	70.76	59.11	36.79	32.10
2024	24.39	29.67	37.46	49.83	64.71	74.15	78.44	75.15	68.90	55.75	42.66	26.93
2025	20.72	21.10	34.54	47.36	60.90	73.09	78.29	76.22	69.50	57.00	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	M	14.00
1998	8.31	12.33	22.23	36.79	50.89	55.48	60.39	60.19	52.28	41.71	29.96	18.86
1999	4.59	13.85	25.60	36.00	52.08	58.82	60.92	58.53	54.38	36.37	31.89	17.77
2000	4.46	10.19	26.67	33.13	46.68	54.39	58.87	59.60	49.00	39.26	30.96	9.39
2001	5.73	4.73	17.97	31.41	46.33	54.55	56.80	57.78	50.42	40.39	32.05	22.33
2002	12.74	10.15	16.63	32.24	41.76	49.20	59.32	57.32	49.44	34.20	22.77	12.84
2003	-0.68	-0.68	10.47	25.73	42.64	52.85	58.33	57.55	50.29	36.98	26.76	15.45
2004	22.80	18.55	M	M	M	58.35	64.37	63.69	59.43	45.67	29.77	11.53
2005	-0.63	10.62	16.64	33.80	43.67	55.34	60.87	M	45.50	42.64	27.93	13.21
2006	0.27	6.31	23.49	40.38	51.50	63.20	67.33	64.78	53.89	46.64	35.23	24.90
2007	7.25	2.37	15.73	31.51	44.22	53.89	58.45	54.33	48.71	42.47	25.76	10.92
2008	9.85	6.20	10.23	33.12	43.29	55.91	60.27	56.97	48.42	38.00	29.32	8.81
2009	-2.86	8.94	17.00	33.94	43.01	52.63	57.64	59.00	48.25	36.30	31.33	14.82
2010	13.31	18.43	26.23	37.54	45.97	54.79	62.53	58.39	51.44	38.49	27.87	16.23
2011	9.05	8.73	17.75	31.42	45.40	53.34	60.63	59.02	52.79	41.32	31.57	16.99
2012	6.84	11.76	25.10	34.35	47.96	55.99	60.53	60.71	49.74	41.63	25.60	16.93
2013	4.78	10.41	25.25	31.69	45.22	51.54	61.04	57.54	49.10	40.74	26.14	7.95
2014	4.45	6.74	7.42	30.14	45.20	55.91	60.50	57.77	49.03	42.34	26.46	17.33
2015	-0.63	-4.07	13.65	31.03	47.36	51.90	58.91	60.87	54.23	35.19	30.74	27.18
2016	12.91	10.12	19.59	26.67	45.35	54.15	59.82	61.15	50.16	40.02	33.12	10.28
2017	14.30	12.94	14.05	33.74	44.49	55.43	58.97	56.55	53.20	43.83	24.24	8.81
2018	4.48	12.13	24.45	28.88	43.99	52.46	62.70	61.53	51.05	35.64	22.60	12.45
2019	2.61	5.16	16.05	31.67	41.85	52.29	61.69	57.68	48.83	39.79	22.95	16.13
2020	13.26	9.87	20.55	30.39	44.09	54.55	63.66	58.39	47.04	37.92	28.66	19.74
2021	15.73	10.66	19.08	35.67	45.41	57.74	58.03	63.54	52.05	45.16	29.43	15.01
2022	-2.50	6.69	20.77	33.70	45.47	54.18	60.30	60.06	51.26	39.61	28.86	22.07
2023	16.23	6.70	23.48	34.23	44.60	55.29	63.64	57.32	54.76	46.19	25.34	22.00
2024	12.87	14.92	25.68	34.31	48.04	57.56	62.46	59.58	53.74	41.21	32.98	16.34
2025	7.96	7.09	20.70	32.71	45.06	54.35	61.26	56.66	49.94	40.00	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	M	18.77
1998	13.19	18.92	26.35	43.04	58.26	62.26	66.66	67.07	58.19	46.42	33.50	23.95
1999	11.19	19.88	29.90	40.84	60.77	66.57	66.58	66.13	61.08	41.63	35.93	21.65
2000	9.14	15.91	31.16	37.59	51.68	60.16	65.15	65.35	54.90	44.81	34.29	14.05
2001	12.68	12.82	23.46	38.92	56.87	63.96	64.84	67.10	58.29	46.63	37.32	26.68
2002	18.48	17.34	23.92	39.36	50.08	58.80	68.48	68.56	61.18	41.13	28.98	19.75
2003	7.60	10.04	22.30	35.12	51.81	64.09	67.15	65.57	60.44	43.93	33.25	21.59
2004	22.80	25.83	M	M	M	60.60	67.63	65.46	60.45	47.36	31.39	13.92
2005	7.59	18.25	23.61	40.87	50.35	65.39	69.92	M	46.75	47.95	33.15	18.39
2006	12.53	8.58	25.66	41.39	53.80	65.50	69.22	67.27	55.50	46.78	36.09	26.35
2007	14.50	10.22	23.41	37.89	54.05	63.04	67.01	63.78	58.23	49.67	31.72	17.05
2008	16.56	14.35	18.85	40.23	51.61	62.83	67.90	64.73	57.25	44.96	34.03	16.61
2009	4.94	17.26	25.20	42.57	51.97	60.96	64.04	67.37	57.36	41.40	37.77	19.98
2010	19.06	22.97	32.89	45.78	56.80	62.83	71.77	67.41	57.25	45.02	33.54	21.28
2011	14.38	15.79	25.12	38.38	51.81	62.63	69.93	66.01	60.03	47.18	38.05	23.48
2012	14.23	19.04	32.35	42.17	56.74	64.45	69.78	68.74	58.75	47.32	32.14	22.19
2013	13.10	16.83	30.17	39.53	54.88	59.42	69.77	65.39	56.81	47.55	31.81	13.53
2014	11.44	13.92	16.28	37.31	53.59	65.09	68.39	66.54	57.38	48.05	31.59	22.94
2015	8.00	3.87	21.47	39.02	57.74	60.42	67.14	67.98	63.04	42.45	36.63	30.87
2016	18.98	18.04	26.56	35.18	54.56	63.08	67.80	69.05	59.28	46.67	37.36	16.75
2017	19.50	19.73	21.38	40.41	51.72	63.65	66.97	64.90	61.88	52.71	30.50	13.84
2018	11.28	20.17	29.44	35.56	54.91	61.60	71.84	70.02	59.74	40.71	26.63	18.45
2019	10.09	12.87	23.83	37.25	49.90	61.26	71.13	66.21	56.09	46.12	28.11	21.35
2020	18.80	18.07	27.80	37.20	53.78	64.71	71.46	65.95	56.09	44.12	35.62	25.40
2021	20.01	17.56	28.27	43.48	54.77	66.24	66.16	71.62	59.69	51.04	34.45	21.54
2022	5.90	14.26	26.38	40.42	55.63	62.52	69.02	67.74	58.69	48.67	34.83	26.78
2023	21.34	15.06	29.39	41.03	54.76	62.46	70.60	64.46	62.76	52.65	31.06	27.05
2024	18.63	22.30	31.57	42.07	56.37	65.86	70.45	67.36	61.32	48.48	37.82	21.63
2025	14.34	14.09	27.62	40.03	52.98	63.72	69.77	66.44	59.72	48.50	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
1997	M	M	M	M	M	M	M	M	M	M	M	M
1998	M	M	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	M	M	M	M
2000	83.1%	70.8%	M	67.5%	76.5%	M	M	69.9%	M	M	M	82.2%
2001	77.0%	71.8%	72.5%	58.8%	60.5%	68.7%	76.7%	73.3%	78.7%	78.9%	80.2%	79.7%
2002	82.7%	77.1%	73.0%	67.3%	63.0%	66.7%	71.5%	69.0%	71.0%	78.7%	82.3%	81.2%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	49.3%	M	M	M	75.6%	78.0%	78.2%	75.2%	75.2%	76.5%	81.5%
2005	70.9%	72.9%	70.4%	67.5%	67.9%	66.2%	69.2%	72.0%	77.5%	81.2%	82.9%	84.4%
2006	89.2%	77.7%	71.1%	65.9%	73.0%	71.8%	72.8%	68.6%	78.6%	78.3%	80.4%	80.4%
2007	75.7%	69.3%	67.0%	69.9%	54.9%	67.5%	74.0%	75.1%	73.2%	78.7%	76.3%	80.6%
2008	78.4%	79.4%	84.7%	71.4%	58.1%	74.0%	72.6%	75.2%	75.0%	72.9%	73.9%	75.7%
2009	73.8%	75.0%	64.6%	58.3%	59.1%	68.8%	78.4%	73.2%	73.9%	80.2%	77.1%	79.1%
2010	79.5%	78.8%	63.9%	61.9%	57.7%	67.9%	68.3%	71.6%	80.7%	72.7%	79.0%	85.7%
2011	76.2%	71.9%	73.0%	65.9%	76.2%	70.9%	69.9%	79.1%	79.1%	76.3%	76.5%	82.7%
2012	78.2%	75.1%	69.9%	61.1%	65.2%	70.8%	63.5%	72.7%	71.6%	80.8%	73.1%	86.8%
2013	76.6%	76.5%	78.2%	64.8%	71.3%	76.1%	70.1%	78.6%	80.2%	79.2%	73.7%	83.3%
2014	77.8%	75.3%	70.1%	70.9%	73.6%	68.0%	72.9%	76.9%	80.0%	81.1%	76.9%	84.2%
2015	78.2%	71.1%	64.9%	66.5%	63.8%	69.6%	73.8%	79.5%	76.7%	75.7%	77.9%	86.4%
2016	80.4%	78.9%	70.8%	55.4%	66.4%	69.0%	74.0%	70.9%	76.4%	80.4%	83.5%	83.2%
2017	81.3%	77.2%	67.8%	76.0%	74.3%	70.0%	71.5%	70.9%	76.0%	76.6%	76.6%	78.4%
2018	M	M	M	M	M	M	65.7%	72.7%	74.7%	75.9%	83.3%	79.8%
2019	74.3%	75.0%	5.9%	9.7%	2.4%	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	56.4%	M	M	M	M	M	M	M
2022	M	M	M	62.3%	40.7%	M	M	76.8%	76.7%	76.0%	79.0%	82.1%
2023	84.4%	78.4%	75.1%	67.1%	54.2%	76.1%	80.5%	81.5%	81.0%	80.8%	74.8%	79.5%
2024	76.7%	72.2%	71.2%	64.0%	70.3%	70.5%	74.4%	77.9%	78.4%	75.1%	77.5%	80.7%
2025	76.7%	71.4%	70.4%	64.4%	69.2%	68.8%	73.1%	69.6%	69.8%	M	M	M