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	M	M	M	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2001	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2008	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2009	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2011	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2012	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	0.00	0.00	M	M	M	M	M
2017	M	M	M	M	M	M	0.00	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	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	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	M	M	M	M	M	M	M	M	M	M	M	M
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	16.5	13.1	13.6	12.5
2000	10.3	12.2	11.4	11.0	11.9	13.2	11.1	12.9	13.2	13.2	12.5	10.7
2001	11.2	10.7	10.9	10.8	12.8	11.3	9.8	12.0	11.1	15.1	12.0	12.5
2002	10.1	11.8	10.3	10.6	12.2	10.9	11.1	13.0	14.6	14.9	12.2	13.4
2003	13.3	10.3	10.2	12.2	10.7	10.1	11.0	11.9	15.6	12.2	13.4	10.9
2004	8.6	10.9	13.5	10.4	12.8	13.8	10.3	12.3	12.3	14.1	14.5	12.6
2005	10.9	9.7	9.6	11.8	11.5	12.2	12.9	13.7	12.5	11.7	13.7	11.3
2006	10.2	8.7	9.1	10.1	11.7	10.0	11.1	12.9	10.0	15.4	14.2	10.3
2007	11.0	9.7	11.5	10.1	12.2	11.2	11.0	13.1	13.1	13.0	14.5	10.2
2008	11.7	10.6	10.7	10.0	8.8	10.6	12.7	10.6	12.6	14.7	13.1	11.0
2009	9.7	9.8	11.3	9.3	11.1	11.5	12.6	10.9	11.8	13.3	12.7	10.6
2010	10.4	7.0	9.8	10.3	11.5	9.7	11.3	13.8	14.3	14.1	13.0	10.5
2011	8.6	11.7	10.8	8.6	11.3	10.5	11.3	11.6	13.0	14.1	14.9	13.3
2012	12.6	9.0	12.6	11.1	12.0	10.6	9.0	11.7	14.1	14.1	12.8	9.9
2013	11.4	8.9	9.2	10.2	10.9	9.9	10.6	10.4	12.5	14.4	14.1	10.7
2014	12.7	12.0	10.5	10.8	8.9	11.9	11.5	10.7	12.9	16.4	15.8	11.2
2015	13.1	11.6	11.6	12.0	11.0	10.1	11.8	13.1	14.8	13.9	13.8	10.6
2016	9.8	10.0	9.1	10.8	10.7	11.4	10.5	11.4	13.5	13.4	12.5	12.5
2017	11.0	10.7	13.2	10.0	11.0	11.5	10.5	8.7	13.0	15.7	14.0	12.4
2018	12.2	11.4	9.9	10.3	8.3	10.9	12.7	11.9	13.4	13.1	11.7	9.7
2019	10.7	9.7	10.5	9.5	10.0	10.2	10.5	10.1	M	M	M	10.2
2020	10.0	11.2	11.4	11.2	11.1	12.3	12.0	11.2	14.6	15.2	13.5	10.0
2021	10.1	11.1	11.4	9.8	11.7	11.0	10.6	13.2	14.4	12.2	14.4	11.6
2022	11.7	10.7	11.1	11.2	12.7	12.3	11.5	11.2	13.8	15.1	13.7	12.1
2023	8.3	10.9	10.5	10.5	11.1	8.4	11.4	10.6	10.9	10.8	15.7	11.0
2024	10.6	10.0	12.1	9.7	11.0	11.8	10.5	11.5	13.3	14.0	12.5	12.7
2025	13.9	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	M	M	M	74.14	61.93	46.00	19.93	5.17
1997	2.54	15.08	20.59	34.96	47.72	70.75	73.31	70.97	62.96	46.70	26.24	26.35
1998	13.18	28.36	26.79	48.43	59.42	64.72	73.45	75.55	63.93	50.73	30.83	15.32
1999	8.30	22.88	32.83	45.15	57.50	67.96	70.09	72.73	58.42	46.52	39.30	23.77
2000	8.94	21.61	34.94	43.10	57.65	63.13	75.00	72.71	59.63	50.27	31.48	3.74
2001	17.61	6.78	28.51	43.33	58.65	67.37	76.26	76.08	64.98	46.94	37.89	21.35
2002	12.86	20.94	17.94	38.29	51.90	69.66	78.24	71.71	63.00	39.06	27.64	21.83
2003	9.38	6.43	24.53	45.32	62.45	71.26	75.79	78.39	61.48	49.45	26.66	22.81
2004	M	34.10	M	M	M	58.57	67.58	62.06	59.45	46.30	33.73	5.34
2005	7.73	17.23	26.06	44.81	54.47	67.50	75.20	M	59.20	50.42	33.03	21.78
2006	23.64	5.79	24.74	42.08	52.92	67.59	71.86	70.57	54.88	43.26	26.30	17.71
2007	15.51	5.79	31.08	38.61	58.00	64.98	88.07	73.15	64.30	51.85	31.69	14.96
2008	12.07	10.37	25.93	45.54	54.85	70.45	75.68	79.80	65.55	52.44	32.31	5.98
2009	6.92	15.86	27.69	43.75	53.57	68.67	71.17	72.53	74.55	45.72	40.80	14.20
2010	15.57	18.76	37.95	54.83	62.59	71.06	78.01	76.27	62.04	55.89	34.85	14.26
2011	6.39	16.62	24.40	44.77	58.91	70.92	79.72	80.28	69.46	55.71	35.92	24.68
2012	20.28	23.12	41.10	49.78	61.19	72.50	83.71	80.28	65.33	45.78	29.46	13.64
2013	10.52	18.13	25.66	38.29	56.06	73.61	78.00	79.03	70.46	50.58	30.45	2.88
2014	5.46	5.27	20.75	39.28	56.57	71.07	76.25	77.21	64.53	51.28	24.67	20.52
2015	14.04	6.22	33.23	48.74	60.11	73.53	78.13	77.24	68.98	53.47	37.18	25.28
2016	14.83	19.10	35.18	43.06	64.67	70.42	77.80	76.42	66.98	51.31	43.73	16.14
2017	16.40	21.50	29.36	47.52	60.29	71.06	77.83	78.71	65.59	52.03	29.30	12.36
2018	13.72	10.42	31.90	40.48	65.21	75.64	78.97	77.08	58.34	42.60	26.14	19.73
2019	6.98	5.06	26.15	43.65	55.11	69.84	75.27	115.75	64.20	M	M	15.25
2020	16.79	17.08	30.82	40.40	55.21	72.14	77.46	74.74	61.41	42.40	34.91	22.67
2021	20.38	7.54	38.30	43.28	58.39	74.08	79.52	73.16	67.18	56.26	35.65	15.41
2022	6.20	6.03	25.96	36.45	56.67	67.66	73.99	74.64	65.61	53.57	32.01	14.73
2023	15.36	16.39	23.21	39.82	65.20	75.32	72.18	72.56	68.18	49.97	34.26	29.19
2024	16.14	24.59	27.11	48.76	58.06	67.83	76.03	74.00	71.48	54.81	37.85	20.13
2025	0.92	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	M	M	M	64.38	53.86	39.52	12.25	-4.43
1997	-7.46	-0.04	6.59	21.07	37.00	60.18	64.23	61.61	54.44	39.93	20.76	19.62
1998	4.41	23.28	16.97	35.68	47.19	56.76	64.28	65.36	55.50	43.70	27.08	8.39
1999	-0.56	13.35	20.40	33.50	48.71	58.00	61.82	63.36	49.83	37.35	29.87	8.74
2000	-9.26	6.00	21.16	28.90	45.22	53.03	62.00	61.48	49.37	39.94	24.52	-10.10
2001	3.27	-8.30	11.47	30.02	44.84	55.41	63.30	63.85	52.70	38.93	30.47	8.38
2002	-0.39	3.73	0.31	24.10	36.32	56.13	66.58	60.96	52.83	31.84	17.13	10.78
2003	-18.90	-16.50	6.83	26.62	45.55	57.25	62.92	64.91	51.98	39.12	17.82	7.89
2004	M	30.75	M	M	M	56.36	63.30	60.07	57.89	43.50	31.49	1.28
2005	-9.10	-0.96	6.49	33.19	43.08	56.89	62.52	M	54.00	40.69	24.58	11.34
2006	8.95	-3.36	17.41	39.11	51.59	64.07	69.18	67.42	53.08	43.15	23.94	13.70
2007	-1.38	-10.89	12.82	20.37	44.28	53.39	70.16	60.34	50.40	42.17	23.12	2.38
2008	-3.86	-9.88	4.39	24.21	37.26	55.55	61.28	65.00	51.53	41.99	23.40	-7.93
2009	-9.88	-3.14	6.97	27.50	36.75	53.76	58.37	60.25	60.26	38.43	31.63	3.97
2010	2.21	-2.75	22.54	36.39	48.31	56.69	64.85	62.74	50.31	44.21	25.11	4.01
2011	-9.27	-3.27	6.08	28.90	42.67	56.88	66.08	64.88	53.98	44.23	28.34	12.75
2012	4.77	6.11	24.83	32.53	47.21	59.22	66.54	63.15	52.10	37.74	19.71	0.67
2013	-8.52	-3.11	3.91	18.89	39.06	57.30	63.47	63.08	55.66	39.86	19.33	-10.43
2014	-14.04	-12.00	-2.88	21.10	39.35	56.14	61.69	62.58	51.53	41.26	15.35	8.83
2015	-1.24	-12.14	15.61	28.92	42.61	58.15	64.99	61.96	56.88	43.02	30.26	16.18
2016	0.87	0.28	17.80	25.66	46.80	57.49	63.79	63.56	54.93	41.63	35.41	4.27
2017	3.55	6.74	14.08	30.56	45.01	57.73	64.26	62.40	53.47	41.76	17.68	0.22
2018	-2.54	-4.99	15.63	19.60	45.87	59.98	65.20	61.87	48.24	33.59	18.82	7.54
2019	-8.23	-10.69	9.77	27.80	39.97	56.79	64.66	48.20	62.60	M	M	2.17
2020	2.91	-0.19	13.62	24.31	42.04	57.55	65.89	63.34	49.53	33.44	21.30	9.14
2021	5.14	-9.31	19.82	29.56	43.13	59.44	65.62	61.41	56.41	45.31	26.24	2.00
2022	-10.15	-12.90	10.52	24.74	43.03	55.24	63.95	63.41	53.93	43.13	23.01	4.27
2023	3.19	-1.34	1.43	26.11	48.60	61.84	61.77	62.08	56.56	42.32	25.60	17.93
2024	6.02	11.44	10.74	32.20	45.68	56.59	65.16	62.74	59.27	42.50	29.67	9.85
2025	-6.60	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	M	M	M	69.26	57.89	42.76	16.09	0.37
1997	-2.46	7.52	13.59	28.02	42.36	65.46	68.77	66.29	58.70	43.31	23.50	22.98
1998	8.79	25.82	21.88	42.05	53.31	60.74	68.86	70.45	59.71	47.22	28.96	11.86
1999	3.87	18.12	26.62	39.33	53.10	62.98	65.95	68.05	54.12	41.94	34.58	16.26
2000	-0.16	13.80	28.05	36.00	51.43	58.08	68.50	67.10	54.50	45.10	28.00	-3.18
2001	10.44	-0.76	19.99	36.67	51.75	61.39	69.78	69.97	58.84	42.93	34.18	14.86
2002	6.24	12.34	9.13	31.19	44.11	62.90	72.41	66.34	57.91	35.45	22.38	16.31
2003	-4.76	-5.03	15.68	35.97	54.00	64.25	69.35	71.65	56.73	44.29	22.24	15.35
2004	M	32.43	M	M	M	57.47	65.44	61.06	58.67	44.90	32.61	3.31
2005	-0.69	8.13	16.28	39.00	48.77	62.19	68.86	M	56.60	45.56	28.80	16.56
2006	16.29	1.21	21.07	40.59	52.25	65.83	70.52	68.99	53.98	43.21	25.12	15.70
2007	7.06	-2.55	21.95	29.49	51.14	59.19	79.11	66.74	57.35	47.01	27.40	8.67
2008	4.10	0.25	15.16	34.87	46.06	63.00	68.48	72.40	58.54	47.21	27.85	-0.97
2009	-1.48	6.36	17.33	35.63	45.16	61.22	64.77	66.39	67.41	42.08	36.22	9.09
2010	8.89	8.00	30.24	45.61	55.45	63.88	71.43	69.50	56.17	50.05	29.98	9.13
2011	-1.44	6.68	15.24	36.83	50.79	63.90	72.90	72.58	61.72	49.97	32.13	18.71
2012	12.53	14.62	32.97	41.16	54.20	65.86	75.12	71.71	58.72	41.76	24.58	7.16
2013	1.00	7.51	14.78	28.59	47.56	65.45	70.73	71.05	63.06	45.22	24.89	-3.77
2014	-4.29	-3.37	8.94	30.19	47.96	63.61	68.97	69.89	58.03	46.27	20.01	14.68
2015	6.40	-2.96	24.42	38.83	51.36	65.84	71.56	69.60	62.93	48.25	33.72	20.73
2016	7.85	9.69	26.49	34.36	55.74	63.96	70.79	69.99	60.95	46.47	39.57	10.20
2017	9.97	14.12	21.72	39.04	52.65	64.40	71.05	70.55	59.53	46.89	23.49	6.29
2018	5.59	2.71	23.77	30.04	55.54	67.81	72.09	69.47	53.29	38.10	22.48	13.63
2019	-0.62	-2.81	17.96	35.73	47.54	63.31	69.97	81.98	63.40	M	M	8.71
2020	9.85	8.44	22.22	32.36	48.62	64.84	71.68	69.04	55.47	37.92	28.10	15.91
2021	12.76	-0.88	29.06	36.42	50.76	66.76	72.57	67.29	61.79	50.79	30.94	8.70
2022	-1.98	-3.44	18.24	30.60	49.85	61.45	68.97	69.02	59.77	48.35	27.51	9.50
2023	9.28	7.53	12.32	32.96	56.90	68.58	66.97	67.32	62.37	46.15	29.93	23.56
2024	11.08	18.01	18.92	40.48	51.87	62.21	70.60	68.37	65.37	48.65	33.76	14.99
2025	-2.84	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	79.3%	79.3%	82.8%	88.2%
2000	84.1%	82.9%	79.5%	72.4%	74.0%	80.1%	77.6%	79.0%	79.1%	78.5%	92.0%	83.6%
2001	91.7%	82.3%	83.9%	79.4%	80.5%	79.4%	81.2%	77.4%	78.4%	80.1%	88.2%	92.9%
2002	86.6%	84.9%	77.9%	81.1%	73.0%	83.8%	77.2%	83.4%	82.8%	82.3%	90.0%	89.3%
2003	89.7%	81.7%	83.3%	66.6%	66.6%	77.6%	79.3%	76.1%	85.5%	83.2%	89.5%	90.3%
2004	85.6%	87.9%	86.6%	77.2%	74.8%	80.9%	83.0%	83.4%	89.1%	87.8%	84.5%	90.2%
2005	89.8%	86.6%	84.0%	80.2%	82.5%	88.1%	82.4%	82.3%	84.8%	89.2%	93.2%	95.8%
2006	95.4%	83.9%	84.6%	77.9%	84.8%	79.8%	79.2%	79.0%	81.7%	86.3%	91.4%	93.6%
2007	92.7%	84.6%	85.5%	75.4%	84.2%	86.1%	71.8%	75.5%	81.3%	83.3%	84.0%	86.4%
2008	80.1%	76.9%	79.0%	69.7%	71.5%	76.7%	78.7%	73.7%	73.3%	75.4%	83.7%	81.4%
2009	79.3%	75.7%	75.3%	72.9%	68.0%	58.2%	76.5%	76.8%	73.6%	80.0%	77.8%	81.2%
2010	81.0%	78.3%	79.7%	64.3%	68.7%	76.1%	72.8%	75.6%	72.5%	72.4%	82.9%	80.9%
2011	80.5%	77.6%	79.5%	75.4%	71.1%	72.2%	69.6%	66.9%	68.8%	74.8%	78.9%	81.0%
2012	79.8%	79.7%	76.5%	65.3%	71.3%	73.6%	68.2%	68.8%	66.6%	78.1%	82.8%	82.9%
2013	79.4%	78.4%	75.0%	70.3%	66.9%	70.3%	67.1%	70.9%	70.7%	74.7%	82.7%	77.0%
2014	78.4%	76.8%	73.3%	72.3%	73.4%	73.2%	71.2%	74.9%	74.6%	76.6%	78.4%	84.5%
2015	78.6%	75.1%	75.7%	66.6%	68.4%	68.5%	73.2%	73.6%	70.9%	75.5%	85.2%	84.4%
2016	81.7%	79.7%	74.7%	68.1%	68.2%	72.2%	72.1%	72.0%	74.9%	80.8%	82.8%	83.1%
2017	82.2%	78.2%	75.1%	70.3%	65.8%	71.6%	71.6%	67.0%	73.1%	72.5%	81.1%	81.6%
2018	79.5%	75.7%	73.3%	63.4%	65.0%	69.6%	68.4%	68.4%	72.4%	76.7%	81.8%	82.5%
2019	76.1%	76.8%	76.0%	68.0%	64.4%	63.5%	67.9%	81.8%	M	M	M	78.2%
2020	80.8%	72.6%	70.8%	66.1%	66.5%	68.9%	M	70.3%	70.1%	67.9%	77.4%	82.1%
2021	80.8%	70.6%	66.7%	65.4%	62.5%	67.5%	64.0%	73.5%	68.9%	74.2%	75.6%	76.2%
2022	74.0%	72.7%	73.2%	73.5%	73.0%	71.5%	72.3%	73.6%	69.2%	73.7%	76.6%	79.1%
2023	82.9%	71.4%	68.4%	68.3%	61.1%	72.9%	69.9%	75.2%	75.1%	79.9%	78.7%	83.8%
2024	82.0%	80.3%	73.1%	64.5%	73.6%	70.9%	75.0%	73.4%	71.7%	66.4%	83.0%	83.2%
2025	76.6%	M	M	M	M	M	M	M	M	M	M	M