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
1996	M	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1997	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	M	M	M	M	M	0.01	0.00	0.00	0.00	0.00	0.00	0.00
2001	0.00	0.00	0.00	0.00	0.41	2.14	2.14	0.92	1.61	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	2.09	2.25	2.74	1.96	1.71	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	0.00	3.00	5.08	2.87	3.48	4.54	0.00	0.00	0.00
2008	0.00	0.00	0.00	0.00	2.09	4.41	5.55	5.25	3.20	0.00	0.00	0.00
2009	0.00	0.00	0.00	M	1.15	2.28	3.59	4.16	1.71	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	0.05	2.32	3.42	2.93	3.96	0.87	0.00	0.00
2011	0.00	0.00	0.00	0.00	4.10	3.60	6.36	1.69	1.96	0.00	0.00	0.00
2012	0.00	0.00	0.00	0.00	1.05	5.63	3.84	1.44	1.62	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	3.71	3.47	1.94	2.55	1.55	0.78	3.28	1.60
2014	M	0.01	5.62	1.84	3.73	2.78	2.42	2.59	3.10	2.83	2.56	1.27
2015	1.57	2.42	1.53	1.67	1.55	2.46	4.14	4.39	5.35	2.61	7.53	5.24
2016	4.86	5.26	4.89	0.67	3.05	3.53	3.88	2.34	2.78	4.51	1.58	2.84
2017	1.61	2.51	3.99	3.31	2.02	1.90	0.33	0.48	2.31	3.15	3.18	0.38
2018	0.26	0.43	5.73	2.49	0.99	3.00	0.46	1.39	1.10	1.23	3.41	M
2019	M	0.13	0.76	1.40	1.67	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	M	0.66	5.64	3.11	2.55
2021	0.11	1.17	2.02	1.51	3.25	3.50	0.10	2.32	4.46	2.35	3.75	2.00
2022	0.53	0.34	2.00	1.36	1.13	2.42	0.89	1.46	0.78	1.22	1.65	2.65
2023	0.07	M	1.74	2.06	1.25	1.44	1.61	1.02	1.62	1.53	1.71	2.77
2024	1.16	3.25	2.20	1.56	3.06	3.22	1.56	5.32	1.08	0.99	7.30	0.54
2025	M	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
1996	M	M	M	M	M	M	M	M	M	M	M	M
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	0.0	9.0	12.6
2000	M	M	M	M	M	M	M	0.0	M	0.0	M	7.5
2001	10.6	8.6	10.2	8.5	10.1	7.2	8.7	7.9	8.2	10.7	9.7	8.8
2002	12.0	12.7	10.8	9.3	8.3	7.8	8.5	7.4	9.2	9.1	12.5	9.6
2003	12.5	9.5	9.6	7.2	7.6	7.7	7.4	7.2	8.9	8.7	8.3	8.9
2004	12.7	8.5	11.3	7.7	8.0	6.4	7.9	7.4	8.4	9.8	12.7	6.8
2005	M	M	9.3	7.7	7.5	7.7	8.7	7.3	7.9	9.0	10.5	10.7
2006	11.6	9.6	6.5	7.9	7.4	7.7	8.4	6.3	7.4	9.0	10.6	13.2
2007	11.6	11.7	11.9	8.9	7.7	7.9	8.2	7.2	8.6	11.1	11.6	11.0
2008	12.0	11.4	9.0	9.9	7.4	7.5	7.1	7.6	7.2	10.2	12.3	11.0
2009	13.1	11.1	11.0	M	8.7	7.8	6.5	7.4	8.7	9.2	11.7	8.3
2010	8.9	7.5	9.3	7.4	7.3	7.3	7.1	6.7	0.0	0.0	0.0	0.0
2011	0.0	0.0	0.0	0.0	0.0	1.3	8.6	7.6	10.1	9.8	12.2	14.4
2012	13.7	8.2	10.3	8.7	8.3	9.0	6.7	6.8	7.1	9.7	10.4	9.2
2013	12.3	11.5	8.9	10.0	7.8	7.1	6.6	7.4	7.5	9.2	11.2	15.0
2014	12.3	8.5	10.2	10.0	6.6	6.7	7.6	6.8	7.1	10.5	9.5	9.3
2015	13.1	9.6	11.4	7.9	6.1	7.3	7.1	7.1	24.1	23.7	10.8	9.3
2016	10.4	12.7	8.9	6.2	0.0	0.0	5.7	6.5	8.1	7.6	11.1	11.3
2017	10.1	9.0	9.3	8.3	7.2	9.1	7.9	7.3	7.7	11.2	11.6	8.7
2018	10.2	11.2	9.2	8.6	7.0	8.8	6.3	7.5	6.3	7.6	12.9	M
2019	M	8.4	7.6	8.4	7.3	7.8	7.2	7.2	8.4	10.7	11.0	11.4
2020	12.3	11.7	10.6	10.0	7.4	8.8	8.9	M	9.4	10.7	11.5	11.4
2021	10.3	10.0	10.5	9.1	6.7	7.5	7.0	8.1	10.0	9.4	10.7	11.4
2022	14.3	14.3	9.8	8.5	7.9	6.8	7.9	7.2	7.0	8.3	10.0	10.1
2023	10.9	13.9	6.7	9.5	6.4	7.3	7.4	7.2	6.6	8.3	11.4	11.7
2024	9.9	8.3	9.0	9.0	8.0	7.3	6.9	6.5	10.8	13.3	10.9	11.7
2025	10.4	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
1996	M	M	M	M	44.09	56.33	64.67	65.87	47.48	35.52	17.66	7.77
1997	12.88	22.88	28.30	38.26	49.81	57.11	62.20	62.43	52.88	35.63	26.69	17.24
1998	16.00	27.44	32.07	43.67	58.77	58.00	68.76	67.25	61.52	39.81	27.69	15.32
1999	19.19	23.92	32.89	41.52	47.08	54.04	58.42	60.00	52.57	38.06	29.83	28.00
2000	M	M	M	M	M	M	M	M	M	M	M	12.23
2001	20.47	20.30	35.22	40.36	52.05	57.13	65.80	68.82	59.13	37.38	29.93	15.90
2002	17.68	24.06	23.99	39.41	47.49	62.05	66.94	63.26	53.73	38.51	28.71	19.89
2003	20.76	24.93	29.71	44.00	50.51	61.30	71.32	72.43	55.44	43.41	19.98	17.58
2004	M	35.20	M	M	M	61.39	58.69	60.70	44.53	35.44	23.18	16.90
2005	M	M	32.84	45.57	57.24	57.51	65.23	M	40.60	39.11	24.44	16.49
2006	25.31	15.12	25.03	37.18	45.77	54.95	58.44	56.15	47.38	29.01	16.71	16.64
2007	17.06	23.18	34.46	41.87	54.00	60.93	74.79	64.19	53.51	39.85	23.16	15.50
2008	15.72	30.11	33.09	38.18	53.06	59.56	65.48	65.19	56.56	40.71	28.95	10.06
2009	17.54	24.94	19.56	M	54.19	60.91	69.93	69.16	61.97	33.25	27.33	8.12
2010	22.38	24.00	29.77	44.39	49.75	57.97	66.41	63.70	50.95	44.98	20.52	17.27
2011	16.38	15.42	32.66	38.91	52.82	57.47	62.52	67.76	58.60	39.59	23.06	19.97
2012	17.09	25.88	34.26	43.63	51.83	55.86	69.80	70.06	60.76	37.60	27.08	16.55
2013	16.75	24.51	31.24	42.98	M	M	75.02	68.31	59.58	41.58	24.50	15.68
2014	23.15	18.26	31.12	42.59	50.62	60.40	73.03	67.31	54.71	44.77	23.16	20.48
2015	22.28	30.71	39.07	44.74	58.51	66.10	68.37	65.60	51.09	46.64	24.58	18.65
2016	23.22	32.74	41.09	53.27	56.99	61.16	64.35	67.22	53.45	38.61	34.64	11.15
2017	14.69	21.54	32.44	41.58	55.82	61.10	73.29	72.37	58.23	39.51	26.34	11.69
2018	22.02	14.86	33.44	42.05	62.08	61.35	75.45	68.25	49.25	37.21	27.60	M
2019	M	18.42	36.98	45.28	56.81	61.61	64.15	68.80	53.83	34.56	23.66	21.15
2020	20.25	25.73	31.93	41.45	52.68	60.45	58.72	M	56.80	37.14	27.43	23.66
2021	23.36	17.55	37.36	44.89	54.13	69.19	78.38	67.49	56.13	42.20	29.13	11.18
2022	18.23	24.18	34.77	38.24	50.40	60.90	74.92	74.85	64.88	51.33	19.33	12.79
2023	23.51	23.56	35.17	44.39	67.65	68.78	72.69	71.90	57.55	44.26	27.50	25.11
2024	17.67	28.47	35.19	44.84	52.91	60.05	75.49	69.00	57.73	36.75	25.18	26.35
2025	18.41	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
1996	M	M	M	M	29.91	37.33	43.37	40.60	35.74	26.03	10.10	-2.77
1997	3.38	11.60	15.03	18.52	31.48	39.04	42.57	42.50	36.76	30.50	19.72	10.48
1998	7.37	14.63	17.78	25.37	35.38	39.41	47.48	40.96	40.86	30.16	21.42	9.50
1999	10.96	13.77	16.81	23.24	29.81	37.33	38.08	43.50	32.86	24.12	21.17	27.00
2000	M	M	M	M	M	M	M	M	M	M	M	-0.19
2001	9.24	-1.04	16.04	23.87	32.41	36.32	42.15	41.33	35.77	24.65	20.28	4.40
2002	7.22	9.77	5.06	20.69	28.23	37.92	42.42	37.40	34.80	21.51	20.12	9.80
2003	-11.77	-1.44	11.42	22.01	29.89	37.28	40.94	40.19	34.48	26.98	7.52	4.80
2004	M	21.20	M	M	M	55.46	50.63	53.90	43.13	32.44	20.30	14.50
2005	M	M	16.14	22.79	32.74	38.92	41.66	M	36.00	28.12	18.52	6.68
2006	19.62	8.36	15.46	32.64	38.40	47.57	49.73	46.61	44.54	28.68	15.10	14.73
2007	6.19	11.26	21.05	23.26	30.07	38.55	44.55	38.85	32.79	28.01	12.20	5.66
2008	3.51	10.58	11.75	18.07	30.96	36.16	40.99	40.50	31.54	24.61	21.13	-1.88
2009	5.48	7.00	2.59	M	30.97	36.19	42.24	39.75	35.64	21.84	18.57	-5.02
2010	10.60	11.40	22.79	21.78	28.08	36.56	39.61	39.88	35.04	30.48	9.75	6.17
2011	4.55	-0.99	15.55	16.80	30.76	38.02	41.12	39.26	36.85	28.54	12.11	11.31
2012	6.49	7.34	17.24	25.15	29.53	38.29	43.01	39.93	34.84	26.29	18.84	7.61
2013	10.83	19.42	17.32	27.20	M	M	34.88	43.51	38.22	26.66	12.85	5.51
2014	10.37	-2.34	14.28	25.12	28.86	35.97	42.37	43.31	35.30	32.20	10.83	9.48
2015	10.99	16.80	23.53	22.89	31.52	41.46	42.72	39.91	33.97	31.18	11.54	8.52
2016	10.94	17.84	21.40	29.62	32.91	38.49	44.04	41.40	35.12	28.03	24.82	0.28
2017	-0.74	5.62	17.62	26.21	31.00	38.92	42.30	43.04	36.62	27.12	17.09	-0.06
2018	11.82	-2.38	13.86	21.71	33.42	39.01	42.93	42.19	33.03	23.53	19.16	M
2019	M	-4.59	10.91	24.57	32.78	38.16	41.73	41.76	37.92	20.83	11.22	9.66
2020	9.10	9.20	11.44	19.94	31.25	39.61	39.96	M	39.08	24.25	15.74	11.78
2021	11.60	0.70	17.35	20.96	30.03	40.60	47.07	43.00	37.43	27.47	17.21	-3.34
2022	9.43	10.01	19.44	18.87	29.70	37.61	45.69	45.51	37.06	30.18	5.83	-0.08
2023	12.75	9.97	4.53	22.83	35.95	41.04	43.22	43.58	36.13	25.61	17.41	17.66
2024	5.18	13.30	13.55	26.62	32.30	35.70	45.21	42.29	39.96	31.40	14.31	19.95
2025	6.78	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
1996	M	M	M	M	37.00	46.83	54.02	53.23	41.61	30.78	13.88	2.50
1997	8.13	17.24	21.67	28.39	40.65	48.07	52.38	52.47	44.82	33.07	23.21	13.86
1998	11.68	21.04	24.93	34.52	47.08	48.71	58.12	54.10	51.19	34.98	24.56	12.41
1999	15.07	18.85	24.85	32.38	38.44	45.69	48.25	51.75	42.71	31.09	25.50	27.50
2000	M	M	M	M	M	M	M	M	M	M	M	6.02
2001	14.85	9.63	25.63	32.11	42.23	46.73	53.97	55.07	47.45	31.02	25.10	10.15
2002	12.45	16.91	14.53	30.05	37.86	49.98	54.68	50.33	44.26	30.01	24.41	14.85
2003	4.49	11.74	20.56	33.01	40.20	49.29	56.13	56.31	44.96	35.19	13.75	11.19
2004	M	28.20	M	M	M	58.42	54.66	57.30	43.83	33.94	21.74	15.70
2005	M	M	24.49	34.18	44.99	48.21	53.45	M	38.30	33.62	21.48	11.59
2006	22.47	11.74	20.24	34.91	42.08	51.26	54.08	51.38	45.96	28.85	15.90	15.69
2007	11.62	17.22	27.75	32.56	42.04	49.74	59.67	51.52	43.15	33.93	17.68	10.58
2008	9.62	20.34	22.42	28.13	42.01	47.86	53.24	52.84	44.05	32.66	25.04	4.09
2009	11.51	15.97	11.08	M	42.58	48.55	56.08	54.45	48.80	27.54	22.95	1.55
2010	16.49	17.70	26.28	33.08	38.91	47.27	53.01	51.79	42.99	37.73	15.13	11.72
2011	10.47	7.22	24.10	27.86	41.79	47.74	51.82	53.51	47.72	34.06	17.59	15.64
2012	11.79	16.61	25.75	34.39	40.68	47.07	56.40	54.99	47.80	31.94	22.96	12.08
2013	13.79	21.97	24.28	35.09	M	M	54.95	55.91	48.90	34.12	18.67	10.59
2014	16.76	7.96	22.70	33.85	39.74	48.18	57.70	55.31	45.00	38.48	16.99	14.98
2015	16.64	23.75	31.30	33.82	45.02	53.78	55.55	52.75	42.53	38.91	18.06	13.58
2016	17.08	25.29	31.24	41.44	44.95	49.82	54.20	54.31	44.29	33.32	29.73	5.71
2017	6.98	13.58	25.03	33.90	43.41	50.01	57.80	57.70	47.42	33.32	21.72	5.82
2018	16.92	6.24	23.65	31.88	47.75	50.18	59.19	55.22	41.14	30.37	23.38	M
2019	M	6.92	23.95	34.93	44.80	49.89	52.94	55.28	45.88	27.70	17.44	15.41
2020	14.67	17.47	21.68	30.69	41.96	50.03	49.34	M	47.94	30.70	21.59	17.72
2021	17.48	9.13	27.35	32.93	42.08	54.90	62.73	55.24	46.78	34.84	23.17	3.92
2022	13.83	17.09	27.10	28.56	40.05	49.25	60.30	60.18	50.97	40.76	12.58	6.36
2023	18.13	16.77	19.85	33.61	51.80	54.91	57.96	57.74	46.84	34.94	22.46	21.38
2024	11.42	20.89	24.37	35.73	42.60	47.87	60.35	55.65	48.84	34.08	19.74	23.15
2025	12.60	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
1996	M	M	M	M	M	M	M	M	M	M	M	M
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	M	M	M	M	M	M	M	M	M	M	M	94.5%
2001	97.0%	89.0%	80.6%	75.2%	74.3%	82.4%	77.0%	69.1%	77.0%	85.3%	94.6%	94.6%
2002	95.9%	93.4%	84.8%	75.0%	77.5%	73.3%	73.1%	85.2%	72.0%	73.6%	87.0%	87.2%
2003	92.3%	86.7%	78.8%	72.7%	68.1%	69.3%	59.7%	56.3%	72.4%	81.2%	84.5%	86.6%
2004	85.7%	83.8%	75.8%	66.2%	73.9%	64.9%	71.5%	74.2%	85.8%	84.2%	90.9%	93.4%
2005	M	M	71.5%	60.4%	65.8%	78.9%	72.4%	68.6%	83.9%	89.6%	89.3%	88.5%
2006	92.4%	82.4%	74.3%	73.7%	67.8%	69.2%	63.4%	71.2%	72.6%	78.2%	89.1%	89.4%
2007	85.8%	85.2%	80.2%	71.9%	70.5%	72.6%	59.9%	70.8%	77.8%	83.6%	87.3%	88.4%
2008	86.5%	84.8%	71.0%	71.0%	71.9%	72.8%	74.2%	77.3%	77.9%	76.2%	92.0%	85.9%
2009	89.6%	82.3%	77.6%	M	65.9%	65.8%	67.3%	69.6%	70.4%	85.6%	92.3%	83.7%
2010	90.2%	85.1%	76.1%	68.6%	67.1%	76.1%	69.8%	73.3%	M	M	M	M
2011	M	M	M	M	M	80.0%	78.6%	68.3%	74.5%	87.6%	88.7%	90.8%
2012	87.3%	85.8%	84.3%	79.1%	68.1%	81.1%	73.8%	67.3%	75.5%	85.5%	92.6%	89.5%
2013	90.8%	92.6%	87.0%	86.1%	M	M	51.2%	73.0%	79.7%	82.7%	92.6%	90.0%
2014	91.9%	82.1%	86.2%	75.7%	78.7%	68.9%	62.4%	73.5%	86.2%	86.8%	91.4%	92.4%
2015	91.7%	84.0%	74.8%	69.9%	61.1%	64.8%	72.5%	73.9%	85.3%	82.8%	92.6%	91.7%
2016	91.8%	88.4%	78.5%	67.0%	M	66.9%	76.3%	73.5%	82.0%	92.1%	93.2%	87.3%
2017	85.5%	82.6%	84.3%	79.1%	69.6%	68.1%	54.9%	54.5%	71.7%	81.7%	89.9%	88.5%
2018	92.2%	83.2%	78.5%	76.5%	66.4%	70.2%	57.5%	67.3%	78.1%	87.1%	94.3%	M
2019	M	73.1%	72.0%	68.0%	65.7%	68.7%	76.5%	72.1%	81.2%	84.8%	92.2%	92.5%
2020	89.8%	87.4%	76.2%	68.2%	72.8%	69.6%	81.5%	M	73.5%	88.0%	90.2%	91.8%
2021	91.2%	83.0%	75.2%	68.0%	71.7%	65.1%	53.1%	69.8%	78.1%	83.4%	91.8%	85.4%
2022	90.4%	86.0%	81.4%	67.9%	69.2%	72.8%	64.3%	M	66.7%	72.3%	83.0%	84.2%
2023	89.6%	81.3%	67.8%	71.9%	62.4%	65.4%	65.0%	67.3%	78.7%	81.6%	88.9%	92.1%
2024	85.9%	83.0%	75.7%	67.0%	71.8%	68.0%	62.1%	78.0%	74.2%	97.0%	90.3%	93.5%
2025	88.1%	M	M	M	M	M	M	M	M	M	M	M