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
1991	M	M	M	M	M	M	M	0.00	0.00	0.00	0.00	0.00
1992	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1993	0.00	0.00	0.00	0.00	0.00	0.00	M	0.00	0.00	0.00	0.00	0.00
1994	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1995	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1996	0.00	0.00	0.00	0.00	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	M	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	M	0.00	0.00	0.00	0.00	0.00
2001	0.00	0.00	0.00	0.00	0.00	0.00	M	0.00	0.00	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	0.00	0.00	M	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	M
2007	M	0.00	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	M	M
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

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	5.0	8.8	6.8	9.2	9.0
1992	9.6	9.4	8.9	8.2	9.0	7.1	8.0	8.7	6.2	6.5	7.9	7.8
1993	12.1	9.1	9.0	8.4	7.0	7.6	M	6.5	6.6	6.2	6.7	9.4
1994	8.6	6.1	11.0	8.4	7.4	10.3	7.1	6.1	7.7	6.6	7.9	7.5
1995	9.1	11.2	10.7	8.8	8.0	7.1	5.5	7.8	8.0	9.4	6.7	4.9
1996	5.4	6.6	7.1	7.2	7.5	7.5	5.6	6.2	6.6	7.2	7.4	7.4
1997	7.1	11.9	10.3	10.3	7.6	5.9	M	5.1	7.4	6.7	4.7	5.7
1998	6.7	10.3	7.7	6.5	7.3	8.3	M	8.1	5.9	8.7	5.0	8.6
1999	7.2	8.3	8.3	8.6	6.9	6.8	8.1	5.0	6.5	7.1	8.6	8.5
2000	9.0	8.6	8.2	6.2	7.2	8.5	M	6.2	4.7	7.6	6.4	6.2
2001	5.3	7.8	5.7	7.1	7.2	7.4	M	5.7	5.9	7.9	7.8	5.6
2002	8.8	9.0	9.1	6.8	6.5	7.4	M	4.4	5.0	7.3	4.2	3.8
2003	7.4	2.7	10.3	8.4	9.5	7.3	M	9.7	11.6	5.9	3.0	6.9
2004	4.7	8.9	7.7	7.4	11.2	9.1	M	10.6	10.6	6.4	7.0	8.0
2005	11.8	9.0	6.7	10.9	M	10.3	M	M	9.8	5.0	6.9	9.2
2006	1.6	10.7	5.1	4.6	11.5	7.7	3.9	M	6.3	6.0	8.9	10.3
2007	10.1	7.5	7.8	7.6	8.1	6.1	7.4	6.5	8.3	6.4	7.9	8.1
2008	11.3	9.5	8.0	6.0	5.2	7.8	6.0	6.8	5.7	9.5	8.2	6.0
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	M	M
2011	7.6	8.4	8.8	7.3	8.3	6.6	5.3	5.6	8.1	8.1	6.9	10.3
2012	7.6	8.1	8.1	7.0	7.3	6.8	6.8	5.7	8.7	6.8	8.6	6.6
2013	6.4	5.4	6.5	8.3	7.7	6.7	6.2	5.5	5.0	6.1	M	11.6
2014	M	M	M	6.5	5.9	6.3	5.7	6.5	4.9	8.4	6.9	8.0
2015	9.8	9.1	8.0	7.9	8.5	7.7	7.3	6.3	6.8	5.6	6.5	9.4
2016	6.6	7.0	5.8	6.6	6.6	6.4	6.5	7.6	6.1	8.0	8.8	8.8
2017	7.6	7.5	8.4	7.7	6.2	8.3	6.8	6.7	5.8	8.7	7.3	8.2
2018	7.1	7.0	5.9	7.3	4.9	6.7	5.1	6.9	9.2	8.2	5.8	6.0
2019	6.5	8.6	9.1	6.2	7.5	7.0	5.4	6.5	7.6	5.9	5.9	7.8
2020	10.6	11.0	8.9	8.4	6.9	5.6	7.3	5.3	7.5	5.9	8.3	6.9
2021	6.0	6.1	8.4	8.2	6.0	5.7	5.9	6.5	6.4	8.6	6.8	6.1
2022	9.5	9.7	5.2	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

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	69.60	60.93	49.65	41.77	38.82
1992	39.17	39.07	42.87	45.85	65.52	73.46	70.26	67.32	59.97	43.50	39.19	37.21
1993	35.46	35.79	39.62	53.54	67.14	62.95	M	61.20	55.00	47.81	35.54	33.72
1994	33.33	26.76	40.04	53.55	60.33	64.92	77.40	71.04	58.12	48.69	43.23	38.20
1995	31.64	39.12	40.70	48.39	56.88	65.83	81.00	72.92	59.04	55.89	37.96	30.30
1996	28.59	27.28	37.04	53.46	55.44	66.38	65.67	74.85	58.42	51.78	39.96	29.61
1997	32.60	36.88	43.42	47.54	56.43	70.21	70.00	79.68	62.52	47.57	38.12	34.22
1998	36.04	41.96	41.56	47.42	60.00	61.19	M	63.00	59.89	49.12	32.44	34.00
1999	33.89	34.54	39.33	52.50	58.42	67.60	65.71	70.37	67.32	50.62	43.73	33.00
2000	37.10	38.24	42.00	50.68	62.86	66.50	M	65.29	58.57	53.78	45.70	40.56
2001	32.10	30.14	35.12	48.58	60.09	61.36	M	69.76	58.50	54.26	39.23	34.80
2002	38.68	39.47	42.40	53.43	62.65	70.00	M	76.23	64.00	43.61	36.33	36.00
2003	26.00	25.00	46.40	60.00	60.20	72.25	72.33	63.20	63.75	42.86	41.50	35.22
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	M
2007	M	32.46	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	62.60	M	M	33.80	22.94
2011	33.12	30.01	40.00	58.48	60.81	75.68	70.52	67.68	62.72	52.85	45.80	39.90
2012	34.15	33.18	48.78	48.44	62.43	62.66	68.58	67.71	59.66	49.48	43.58	28.57
2013	30.55	31.55	34.90	48.62	64.05	67.40	71.41	69.06	61.64	52.97	40.18	41.45
2014	29.92	36.11	32.00	61.16	60.57	66.26	76.94	67.83	63.20	54.59	44.12	37.52
2015	37.57	37.72	46.05	52.94	55.91	63.80	68.06	71.19	61.46	51.74	51.00	42.35
2016	30.26	37.46	44.48	50.22	64.01	69.02	70.61	67.42	67.58	48.95	39.92	42.39
2017	36.99	37.46	44.66	48.47	62.72	66.74	70.15	67.42	59.36	51.92	42.74	39.37
2018	36.06	29.69	34.03	53.96	71.31	71.48	80.95	71.14	63.14	54.82	41.21	36.22
2019	34.38	41.58	43.90	57.02	58.19	71.48	71.08	69.92	60.44	49.94	40.94	40.42
2020	43.50	41.68	44.37	53.30	57.90	72.68	66.03	72.94	62.96	52.61	48.08	40.77
2021	31.01	33.61	44.90	49.53	59.68	72.68	75.43	67.25	61.34	53.66	43.76	33.26
2022	39.37	38.88	46.69	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

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	49.20	45.77	38.55	35.03	32.64
1992	29.10	30.00	32.84	33.19	45.21	49.46	56.06	53.39	42.31	31.37	31.92	27.71
1993	28.08	24.88	27.50	35.25	45.38	49.45	M	43.60	38.04	36.62	31.19	29.64
1994	28.54	13.96	30.37	33.77	41.19	51.76	71.40	51.61	45.88	35.27	35.69	32.80
1995	23.76	32.29	31.96	34.83	40.56	53.08	52.00	53.35	47.88	45.63	30.35	20.87
1996	23.44	15.60	25.73	35.42	41.76	52.38	50.33	53.04	38.92	40.89	33.24	21.43
1997	24.28	29.38	27.92	33.42	42.09	53.00	62.50	55.36	44.91	34.25	31.62	29.00
1998	29.46	35.25	29.07	35.54	44.95	51.25	M	50.32	47.56	37.54	27.52	26.88
1999	26.79	22.96	30.19	38.00	37.96	51.96	53.29	48.07	48.40	39.73	35.38	23.88
2000	28.71	28.95	27.96	35.95	45.68	52.21	M	50.29	36.90	46.48	40.26	36.50
2001	26.50	20.18	20.29	36.89	44.96	48.29	M	54.00	46.70	44.30	31.41	28.40
2002	32.21	32.16	31.95	34.52	46.55	55.57	M	57.08	41.86	34.48	29.00	32.00
2003	21.50	19.50	38.80	53.67	53.20	60.75	69.33	59.00	55.50	33.57	34.75	32.33
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	M
2007	M	24.07	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	62.60	M	M	32.00	8.02
2011	22.01	16.82	26.27	35.67	39.35	53.33	53.94	49.10	47.96	38.56	36.68	30.84
2012	25.15	17.79	31.25	30.44	40.19	44.72	51.51	49.19	45.80	37.05	36.50	20.74
2013	21.49	19.53	13.71	29.00	42.92	46.16	48.39	47.70	38.54	37.40	39.20	38.75
2014	29.65	35.60	32.00	32.84	39.49	45.98	52.50	48.26	40.40	42.39	36.92	27.06
2015	30.03	29.69	28.92	31.58	39.11	45.02	51.57	48.37	44.24	37.11	45.80	33.54
2016	19.05	26.48	28.23	33.73	42.80	47.66	51.22	49.42	48.02	38.21	30.44	31.01
2017	24.51	26.86	30.49	30.40	40.13	50.00	49.36	49.19	46.94	40.30	31.64	29.97
2018	27.70	18.56	18.94	33.68	42.74	47.18	52.96	53.31	46.52	37.75	31.72	29.08
2019	21.95	30.33	31.07	28.46	39.03	49.88	50.75	51.74	44.18	36.99	32.60	31.65
2020	33.97	30.45	29.10	31.58	35.89	48.62	49.30	50.58	46.52	39.66	39.02	34.85
2021	22.13	16.44	30.26	28.53	40.13	51.14	54.47	48.55	45.56	40.88	33.44	22.88
2022	28.52	29.49	23.29	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

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	59.40	53.35	44.10	38.40	35.73
1992	34.13	34.53	37.85	39.52	55.36	61.46	63.16	60.35	51.14	37.43	35.56	32.46
1993	31.77	30.33	33.56	44.40	56.26	56.20	M	52.40	46.52	42.21	33.37	31.68
1994	30.94	20.36	35.20	43.66	50.76	58.34	74.40	61.32	52.00	41.98	39.46	35.50
1995	27.70	35.71	36.33	41.61	48.72	59.46	66.50	63.13	53.46	50.76	34.15	25.59
1996	26.02	21.44	31.38	44.44	48.60	59.38	58.00	63.94	48.67	46.33	36.60	25.52
1997	28.44	33.12	35.67	40.48	49.26	61.60	66.25	67.52	53.72	40.91	34.87	31.61
1998	32.75	38.60	35.31	41.48	52.48	56.22	M	56.66	53.72	43.33	29.98	30.44
1999	30.34	28.75	34.76	45.25	48.19	59.78	59.50	59.22	57.86	45.17	39.56	28.44
2000	32.90	33.60	34.98	43.32	54.27	59.36	M	57.79	47.74	50.13	42.98	38.53
2001	29.30	25.16	27.71	42.74	52.52	54.82	M	61.88	52.60	49.28	35.32	31.60
2002	35.45	35.82	37.17	43.98	54.60	62.79	M	66.65	52.93	39.04	32.67	34.00
2003	23.75	22.25	42.60	56.83	56.70	66.50	70.83	61.10	59.62	38.21	38.12	33.78
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	M
2007	M	28.27	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	62.60	M	M	32.90	15.48
2011	27.57	23.42	33.13	47.07	50.08	64.51	62.23	58.39	55.34	45.70	41.24	35.37
2012	29.65	25.48	40.01	39.44	51.31	53.69	60.05	58.45	52.73	43.26	40.04	24.65
2013	26.02	25.54	24.31	38.81	53.48	56.78	59.90	58.38	50.09	45.18	39.69	40.10
2014	29.78	35.86	32.00	47.00	50.03	56.12	64.72	58.04	51.80	48.49	40.52	32.29
2015	33.80	33.70	37.49	42.26	47.51	54.41	59.81	59.78	52.85	44.43	48.40	37.95
2016	24.65	31.97	36.35	41.97	53.41	58.34	60.92	58.42	57.80	43.58	35.18	36.70
2017	30.75	32.16	37.57	39.43	51.42	58.37	59.75	58.30	53.15	46.11	37.19	34.67
2018	31.88	24.13	26.48	43.82	57.03	59.33	66.95	62.22	54.83	46.28	36.47	32.65
2019	28.17	35.95	37.49	42.74	48.61	60.68	60.92	60.83	52.31	43.47	36.77	36.04
2020	38.74	36.07	36.73	42.44	46.89	60.65	57.66	61.76	54.74	46.14	43.55	37.81
2021	26.57	25.02	37.58	39.03	49.91	61.91	64.95	57.90	53.45	47.27	38.60	28.07
2022	33.95	34.19	34.99	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

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
1991	M	M	M	M	M	M	M	72.5%	73.3%	82.1%	87.3%	84.9%
1992	81.3%	83.6%	77.8%	77.4%	59.8%	55.8%	66.8%	74.8%	79.2%	82.3%	88.8%	86.5%
1993	82.2%	81.4%	73.6%	64.5%	57.2%	63.7%	M	75.5%	79.5%	83.4%	88.7%	89.2%
1994	86.3%	85.6%	75.9%	66.4%	55.5%	64.8%	42.5%	70.5%	82.0%	81.4%	86.6%	92.6%
1995	88.9%	83.4%	77.4%	70.3%	70.4%	72.9%	65.1%	64.1%	85.8%	82.2%	91.6%	92.1%
1996	93.1%	86.0%	78.3%	66.1%	73.6%	66.9%	75.5%	68.1%	76.2%	85.9%	91.7%	89.6%
1997	86.8%	83.1%	68.8%	66.6%	66.3%	62.5%	M	66.3%	73.5%	80.7%	91.9%	93.0%
1998	89.2%	86.9%	73.6%	80.2%	67.0%	75.6%	M	74.9%	84.3%	84.5%	93.2%	89.6%
1999	93.0%	85.3%	88.1%	75.3%	62.4%	69.9%	69.4%	69.9%	78.0%	81.3%	86.9%	87.5%
2000	77.5%	85.0%	71.6%	76.6%	65.6%	67.5%	M	79.7%	80.2%	90.8%	92.4%	93.3%
2001	91.0%	80.4%	81.0%	82.4%	67.4%	71.1%	M	77.4%	84.9%	85.1%	78.7%	90.8%
2002	89.9%	82.3%	76.7%	68.4%	69.3%	66.6%	M	74.0%	77.9%	83.7%	83.5%	90.0%
2003	83.4%	89.8%	63.3%	43.3%	68.8%	59.2%	M	73.9%	80.1%	77.5%	95.1%	81.8%
2004	88.3%	81.1%	74.1%	73.2%	65.4%	78.2%	M	84.6%	73.4%	88.3%	86.5%	91.9%
2005	72.7%	84.9%	72.2%	70.0%	M	72.4%	M	M	70.6%	84.4%	84.3%	84.6%
2006	87.8%	78.3%	91.7%	85.3%	62.3%	72.7%	53.4%	M	82.4%	90.5%	88.3%	88.8%
2007	86.4%	85.3%	82.2%	66.2%	73.5%	72.5%	80.6%	80.1%	83.8%	86.1%	86.8%	93.2%
2008	86.8%	85.1%	80.5%	74.1%	66.7%	67.7%	74.0%	84.7%	85.8%	87.1%	90.1%	93.0%
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	M	M	M	M	M
2011	91.4%	83.4%	77.0%	73.3%	72.2%	69.8%	84.1%	86.5%	87.0%	88.8%	94.6%	92.7%
2012	91.3%	86.3%	74.8%	78.7%	71.5%	80.7%	82.4%	86.8%	87.5%	91.0%	93.9%	96.4%
2013	94.5%	94.4%	74.0%	74.5%	76.2%	78.3%	75.9%	82.3%	86.1%	89.9%	M	91.8%
2014	M	M	M	63.9%	76.8%	74.0%	74.8%	85.7%	85.0%	87.9%	91.3%	88.6%
2015	88.1%	84.2%	77.7%	65.1%	73.5%	71.7%	77.2%	75.9%	84.8%	82.9%	84.6%	81.9%
2016	81.4%	78.8%	74.6%	67.8%	62.9%	62.5%	68.8%	73.6%	73.4%	74.9%	79.5%	79.3%
2017	81.2%	76.6%	72.6%	65.9%	61.1%	63.8%	62.0%	72.3%	80.3%	75.5%	86.1%	83.8%
2018	73.3%	71.3%	63.5%	58.5%	51.4%	52.0%	51.2%	66.3%	71.5%	75.5%	88.5%	91.9%
2019	87.4%	85.4%	80.3%	59.6%	72.1%	72.8%	74.5%	81.7%	83.8%	91.3%	96.4%	94.3%
2020	87.5%	85.9%	75.7%	62.7%	66.4%	69.1%	81.5%	77.3%	85.6%	90.7%	86.2%	91.1%
2021	90.9%	81.8%	74.4%	62.9%	74.6%	68.7%	73.6%	78.2%	81.7%	82.9%	87.9%	87.3%
2022	80.7%	82.6%	69.9%	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