View Monthly Charts

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
1985	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1986	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M
1987	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1988	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1989	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1990	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1991	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1992	M	M	M	M	M	M	M	M	M	M	M	0.00
1993	0.00	0.00	0.00	0.00	0.00	0.00	0.00	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	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	0.24	3.05	9.43	8.02
2003	M	M	M	M	M	M	M	M	M	M	M	M
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

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1985	18.2	22.5	2.7	11.0	15.6	15.6	14.9	5.0	8.4	20.3	21.0	20.6
1986	32.5	19.9	26.2	19.2	19.4	16.8	14.0	12.1	0.0	0.0	0.0	M
1987	24.1	8.0	22.2	24.9	21.3	9.5	14.1	16.7	20.8	18.2	29.0	26.9
1988	24.7	3.8	26.3	19.0	20.9	11.5	14.9	16.3	17.3	23.0	23.1	20.7
1989	29.6	17.4	23.3	18.3	9.9	16.5	14.9	12.9	16.2	19.6	25.3	27.7
1990	28.5	25.4	19.0	0.0	0.0	0.4	14.4	1.8	0.0	6.3	0.0	0.0
1991	0.0	0.0	0.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
1992	M	M	M	M	M	M	M	M	M	M	M	26.5
1993	26.1	25.6	23.6	26.4	21.5	14.2	17.5	17.1	17.8	18.8	28.1	26.8
1994	22.9	23.2	20.9	22.1	18.7	15.0	16.4	13.4	17.1	20.3	28.1	28.2
1995	24.4	25.3	25.6	21.4	18.3	18.8	13.6	14.9	14.2	23.9	27.9	33.0
1996	26.2	24.6	22.9	23.2	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	21.7	23.2	28.2	23.3
2000	25.3	22.5	26.1	20.9	18.3	15.5	15.3	18.2	8.2	22.4	25.1	23.0
2001	31.4	20.9	24.7	20.6	23.2	14.4	15.8	23.1	20.0	27.7	29.7	32.1
2002	27.2	26.2	24.7	19.6	21.0	22.7	15.8	18.9	18.7	18.6	30.4	27.1
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	32.2	25.8	29.4	16.2	15.5	15.7	15.8	14.3	17.9	14.5	23.7	24.2
2005	27.3	22.6	26.1	21.2	20.2	14.9	17.5	14.0	16.2	27.0	24.1	20.8
2006	19.3	24.0	21.5	19.7	9.8	9.5	14.0	14.3	15.5	17.8	25.7	27.6
2007	0.0	5.6	28.2	23.6	16.1	18.9	16.3	13.1	17.5	25.3	24.9	24.0
2008	16.5	25.9	27.1	17.3	21.3	17.9	17.0	19.8	17.1	24.2	29.0	24.3
2009	22.2	21.9	45.4	M	M	M	M	M	M	M	M	M
2010	M	M	38.0	M	M	8.9	M	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1985	47.30	47.30	29.30	43.16	48.26	52.04	56.68	55.05	54.08	50.52	38.42	44.08
1986	45.94	42.74	46.52	45.86	48.66	52.16	53.72	57.03	54.74	52.55	48.04	M
1987	45.39	46.08	47.15	47.24	49.01	52.40	55.69	56.91	56.14	53.43	50.00	45.01
1988	43.98	44.99	44.37	46.34	49.42	52.34	55.17	56.50	55.46	53.31	48.14	44.79
1989	42.97	38.36	42.68	47.72	50.81	53.24	56.27	58.25	57.44	52.03	47.90	47.33
1990	44.48	41.71	45.12	47.42	49.13	53.24	58.30	60.63	57.56	45.87	44.93	40.35
1991	42.29	45.56	42.05	45.32	48.72	52.58	55.28	57.08	57.20	51.22	49.28	47.15
1992	46.11	46.96	47.56	48.80	50.58	54.74	57.14	57.66	55.10	52.61	50.00	43.67
1993	42.39	45.24	45.82	48.08	53.08	58.40	56.62	60.10	55.88	57.08	52.88	48.72
1994	49.54	43.89	46.86	48.98	54.01	57.92	58.30	59.35	58.10	51.74	45.62	44.14
1995	48.72	46.34	46.81	50.36	51.10	53.60	58.30	57.49	61.40	53.60	49.65	45.76
1996	40.25	44.54	46.81	54.20	M	52.29	54.88	56.79	54.50	49.88	43.94	40.36
1997	43.38	44.21	43.09	47.00	51.39	54.38	58.13	59.00	59.24	52.55	51.08	47.85
1998	43.90	46.34	46.23	46.94	50.00	52.64	55.92	58.36	55.34	52.73	48.80	44.48
1999	43.67	43.12	42.50	45.50	46.23	50.24	52.45	55.14	53.60	50.58	47.66	46.17
2000	42.34	44.17	44.72	46.04	48.43	52.64	56.79	56.97	55.40	51.97	47.70	44.83
2001	45.88	42.93	44.08	45.92	46.81	51.86	54.41	55.04	36.09	-49.00	M	M
2002	M	41.90	40.42	45.32	47.74	52.52	56.33	58.48	56.93	51.64	51.47	46.67
2003	9.41	30.01	44.77	46.64	49.59	53.80	57.49	59.06	57.92	53.60	46.58	45.59
2004	43.96	46.03	45.65	49.21	51.76	56.07	57.52	60.45	56.48	51.33	48.42	45.45
2005	43.17	44.32	45.87	47.55	52.70	54.85	57.28	59.21	56.44	52.41	46.54	46.25
2006	44.93	43.21	43.32	46.44	49.77	53.58	56.28	57.87	56.04	50.71	44.80	45.22
2007	42.54	43.06	42.86	45.25	48.78	51.80	57.16	59.11	55.64	51.00	46.42	42.13
2008	38.67	42.28	41.95	43.40	48.23	49.44	53.98	55.17	54.26	50.23	48.38	40.01
2009	42.80	40.81	39.49	43.34	47.39	53.48	54.35	56.35	55.54	50.37	45.48	41.69
2010	45.40	45.47	43.81	45.34	47.97	51.10	54.22	56.01	54.80	52.01	44.26	42.76

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1985	44.60	42.29	27.05	38.12	43.85	47.78	53.02	52.15	50.06	45.99	32.84	39.90
1986	40.88	36.89	42.34	41.00	44.14	48.62	50.81	53.89	50.96	49.36	43.21	M
1987	40.55	41.84	41.87	42.44	44.66	48.62	51.68	53.43	52.73	49.19	45.44	39.78
1988	39.76	41.26	39.78	41.12	44.43	47.84	51.28	53.02	51.26	49.65	43.10	40.50
1989	36.94	34.31	37.86	41.96	45.59	49.10	52.90	54.47	52.34	47.74	43.34	43.90
1990	39.03	35.92	40.25	43.10	45.59	49.82	54.18	56.10	53.12	32.45	38.38	34.78
1991	38.69	41.64	37.63	40.46	44.37	47.96	51.80	52.85	52.94	46.34	45.08	42.74
1992	41.70	42.55	42.86	43.40	46.81	50.72	53.48	54.12	51.26	48.32	47.00	39.08
1993	37.63	40.81	41.70	43.82	48.08	51.56	53.19	54.70	52.22	50.41	43.94	43.67
1994	44.31	37.53	41.46	44.48	46.40	50.36	53.72	55.52	54.08	47.74	40.64	39.78
1995	42.45	40.16	40.36	43.28	47.50	48.98	53.95	53.48	55.18	49.13	44.67	41.52
1996	35.48	38.52	40.71	43.40	M	49.84	52.15	54.35	51.44	46.98	40.64	36.88
1997	40.71	42.41	40.07	43.64	48.37	51.32	54.88	56.68	55.76	49.94	48.38	44.48
1998	40.83	43.31	43.55	43.76	47.39	50.30	53.08	55.46	53.00	50.12	45.80	40.94
1999	40.88	40.05	39.20	41.66	43.09	47.30	51.22	53.94	51.32	46.46	43.52	41.06
2000	37.34	40.32	40.83	41.78	44.43	48.86	53.19	53.95	51.38	48.14	44.17	40.83
2001	41.93	39.14	39.43	41.54	43.26	47.60	51.34	42.08	24.64	-49.00	M	M
2002	M	39.20	35.60	40.64	43.96	48.62	52.73	54.47	52.54	47.46	47.16	41.45
2003	7.55	25.89	39.55	39.62	45.59	51.00	53.66	54.88	53.30	49.13	41.54	40.54
2004	39.84	42.24	41.41	43.72	46.88	50.70	54.00	55.95	52.26	47.53	43.77	41.23
2005	39.14	39.82	41.41	42.09	47.75	50.03	53.50	54.71	51.96	47.72	42.10	42.44
2006	40.69	37.39	37.27	41.01	44.58	49.72	52.17	53.04	51.52	46.75	38.11	40.09
2007	36.85	39.17	37.24	40.39	43.53	47.38	52.35	54.09	50.98	46.45	41.35	36.75
2008	33.28	38.07	36.91	37.91	43.11	44.95	49.49	51.32	50.42	45.94	43.76	34.73
2009	38.21	36.82	35.83	40.04	43.79	50.12	51.66	53.27	52.82	47.83	42.15	39.24
2010	43.05	43.09	40.73	41.31	44.24	47.65	51.40	52.36	51.72	49.54	41.44	39.89

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1985	45.95	44.79	28.18	40.64	46.05	49.91	54.85	53.60	52.07	48.26	35.63	41.99
1986	43.41	39.81	44.43	43.43	46.40	50.39	52.26	55.46	52.85	50.96	45.62	M
1987	42.97	43.96	44.51	44.84	46.84	50.51	53.69	55.17	54.44	51.31	47.72	42.39
1988	41.87	43.12	42.07	43.73	46.92	50.09	53.22	54.76	53.36	51.48	45.62	42.64
1989	39.95	36.34	40.27	44.84	48.20	51.17	54.59	56.36	54.89	49.88	45.62	45.62
1990	41.75	38.81	42.68	45.26	47.36	51.53	56.24	58.36	55.34	39.16	41.65	37.56
1991	40.49	43.60	39.84	42.89	46.55	50.27	53.54	54.96	55.07	48.78	47.18	44.95
1992	43.90	44.76	45.21	46.10	48.69	52.73	55.31	55.89	53.18	50.46	48.50	41.37
1993	40.01	43.02	43.76	45.95	50.58	54.98	54.91	57.40	54.05	53.75	48.41	46.20
1994	46.92	40.71	44.16	46.73	50.20	54.14	56.01	57.43	56.09	49.74	43.13	41.96
1995	45.59	43.25	43.58	46.82	49.30	51.29	56.13	55.49	58.29	51.36	47.16	43.64
1996	37.86	41.53	43.76	48.80	M	51.06	53.51	55.57	52.97	48.43	42.29	38.62
1997	42.05	43.31	41.58	45.32	49.88	52.85	56.50	57.84	57.50	51.25	49.73	46.17
1998	42.36	44.83	44.89	45.35	48.69	51.47	54.50	56.91	54.17	51.42	47.30	42.71
1999	42.28	41.58	40.85	43.58	44.66	48.77	51.84	54.54	52.46	48.52	45.59	43.61
2000	39.84	42.24	42.77	43.91	46.43	50.75	54.99	55.46	53.39	50.06	45.93	42.83
2001	43.90	41.03	41.75	43.73	45.04	49.73	52.87	48.56	30.36	-49.00	M	M
2002	M	40.55	38.01	42.98	45.85	50.57	54.53	56.47	54.73	49.55	49.31	44.06
2003	8.48	27.95	42.16	43.13	47.59	52.40	55.57	56.97	55.61	51.36	44.06	43.06
2004	41.90	44.13	43.53	46.47	49.32	53.39	55.76	58.20	54.37	49.43	46.09	43.34
2005	41.15	42.07	43.64	44.82	50.23	52.44	55.39	56.96	54.20	50.06	44.32	44.35
2006	42.81	40.30	40.30	43.72	47.18	51.65	54.22	55.45	53.78	48.73	41.46	42.65
2007	39.70	41.11	40.05	42.82	46.16	49.59	54.76	56.60	53.31	48.73	43.89	39.44
2008	35.97	40.17	39.43	40.66	45.67	47.19	51.73	53.25	52.34	48.08	46.07	37.37
2009	40.51	38.81	37.66	41.69	45.59	51.80	53.00	54.81	54.18	49.10	43.82	40.46
2010	44.22	44.28	42.27	43.33	46.10	49.38	52.81	54.19	53.26	50.77	42.85	41.32

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
1985	93.0%	87.8%	84.0%	85.9%	91.5%	88.9%	93.9%	94.3%	92.4%	90.7%	83.1%	89.7%
1986	89.8%	84.8%	91.5%	89.1%	91.3%	92.6%	93.8%	95.7%	M	M	M	M
1987	M	M	80.8%	M	M	M	M	M	M	M	M	M
1988	M	M	M	M	M	M	M	M	M	M	M	M
1989	M	M	M	M	M	M	M	M	M	M	M	M
1990	M	M	M	M	M	M	M	M	M	M	M	M
1991	M	M	M	M	M	M	M	M	M	M	M	M
1992	M	M	M	M	M	M	M	M	M	M	M	M
1993	M	M	M	M	M	M	M	M	M	M	M	M
1994	M	M	M	M	M	M	M	M	M	M	M	M
1995	M	M	M	M	M	M	M	M	M	M	M	M
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	M
2001	M	M	M	M	M	M	M	M	M	M	M	M
2002	M	M	M	M	M	M	M	M	M	M	M	M
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	83.8%	86.7%	86.8%	94.3%	94.0%	89.6%	86.5%	89.3%	88.2%
2005	83.7%	83.6%	85.9%	87.5%	87.2%	89.2%	93.1%	94.2%	90.3%	87.9%	84.4%	87.3%
2006	85.0%	73.7%	79.8%	81.9%	84.9%	89.3%	93.0%	90.0%	91.7%	89.5%	84.0%	85.7%
2007	89.6%	89.6%	87.3%	84.4%	87.7%	92.0%	93.8%	92.2%	91.6%	88.8%	86.3%	87.3%
2008	87.2%	89.8%	85.0%	80.9%	89.2%	90.6%	92.8%	82.9%	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	88.1%	M	M	91.2%	M	M	M	M	M	M

Monthly Plots

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JanFebMarAprMayJunJulAugSepOctNovDec 19851986198719881989199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

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