IEM :: Monthly Summaries

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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 (USC00041424) 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
2010	M	M	M	M	M	M	M	M	M	M	M	0.50
2011	0.48	6.05	2.19	0.59	0.72	0.00	0.22	1.28	0.22	0.62	3.39	1.62
2012	0.73	2.01	2.88	2.85	0.00	0.00	0.39	0.67	0.59	0.37	0.59	2.74
2013	2.29	1.52	1.78	0.02	0.52	0.00	0.27	0.15	2.34	0.93	0.87	0.78
2014	0.12	1.52	1.27	1.08	0.01	0.00	0.18	0.56	0.57	0.00	0.38	4.21
2015	0.48	1.07	1.74	0.44	2.61	0.69	0.03	0.02	0.76	1.09	1.04	2.03
2016	4.29	0.82	1.05	1.90	0.19	0.00	0.00	0.00	1.13	0.10	1.20	4.87
2017	8.86	5.09	0.13	0.00	1.11	0.00	0.18	0.00	0.04	M	0.34	0.01
2018	2.00	M	M	0.00	0.05	0.00	0.00	M	M	M	M	M
2019	M	M	M	0.00	1.55	0.98	0.08	0.00	0.71	0.00	4.48	3.94
2020	0.24	0.84	3.44	2.29	0.02	0.00	0.00	0.00	0.00	0.00	M	M
NCEI Climatology	3.09	3.58	2.28	1.04	0.38	0.09	0.29	0.42	0.40	0.67	1.03	2.44

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2010	M	M	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	M	M	M	7.2	10.3
2018	7.9	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	8.1
2020	8.0	9.1	7.7	8.0	7.5	M	M	M	M	M	M	M
NCEI Climatology	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
2010	M	M	M	M	M	M	M	M	M	M	M	48.00
2011	64.16	59.57	67.39	72.07	74.81	85.00	92.23	96.65	91.48	82.37	66.50	60.55
2012	67.23	63.00	66.14	74.33	82.83	88.28	93.39	95.94	93.37	81.81	73.70	61.10
2013	60.35	61.29	73.06	74.23	82.39	92.63	96.74	96.06	92.43	80.58	68.90	63.10
2014	72.23	70.57	73.00	78.93	84.81	91.57	96.16	93.71	93.53	87.13	72.00	63.55
2015	66.58	73.46	76.42	77.20	75.39	92.87	90.84	97.61	92.77	84.52	68.33	62.58
2016	61.65	73.21	72.77	76.13	77.65	95.33	98.84	97.19	87.53	84.97	72.67	63.68
2017	57.84	63.50	73.90	77.50	78.70	92.13	97.26	95.32	92.33	M	74.33	68.42
2018	71.00	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	57.00	67.16	83.90	93.10	96.26	86.43	78.97	71.57	59.45
2020	64.48	65.38	59.74	68.73	81.84	84.07	93.65	97.84	94.23	85.92	M	M
NCEI Climatology	63.59	64.03	67.90	72.60	78.80	87.70	93.91	95.10	90.30	80.20	70.91	63.20

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2010	M	M	M	M	M	M	M	M	M	M	M	27.00
2011	33.90	31.50	34.84	39.40	39.29	41.23	51.10	51.32	50.17	41.73	36.03	29.97
2012	33.32	33.00	34.69	37.50	38.87	41.52	50.90	59.42	53.97	42.26	35.77	32.58
2013	32.35	29.86	34.81	36.73	40.71	43.17	55.84	52.83	49.97	38.72	37.89	35.84
2014	36.52	34.00	37.16	39.20	43.74	43.00	54.48	53.23	52.50	42.97	38.80	36.19
2015	35.61	35.64	36.10	37.43	43.87	49.23	52.26	53.68	53.70	48.84	37.07	32.39
2016	34.52	36.66	35.61	39.27	44.00	49.87	53.32	53.47	48.83	43.19	39.17	38.03
2017	37.74	37.04	38.58	36.23	43.67	47.47	57.97	54.90	61.17	M	41.30	35.71
2018	42.33	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	49.00	43.16	48.20	52.29	53.71	50.37	41.39	39.20	37.45
2020	33.19	34.07	37.90	42.70	43.03	46.40	50.03	57.71	52.57	46.23	M	M
NCEI Climatology	34.69	35.02	36.30	38.09	42.40	45.20	53.00	54.19	49.70	42.60	37.00	33.39

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2010	M	M	M	M	M	M	M	M	M	M	M	37.50
2011	49.03	45.54	51.11	55.73	57.05	63.12	71.66	73.98	70.83	62.05	51.27	45.26
2012	50.27	48.00	50.41	55.92	60.85	64.90	72.15	77.68	73.67	62.03	54.73	46.84
2013	46.35	45.57	53.94	55.48	61.55	67.90	76.29	74.33	71.20	59.56	53.20	49.47
2014	54.37	52.02	55.08	59.07	64.27	67.28	75.32	73.47	73.02	65.05	55.40	49.87
2015	51.10	54.55	56.26	57.32	59.63	71.05	71.55	75.65	73.23	66.68	52.70	47.48
2016	48.08	54.95	54.19	57.70	60.82	72.60	76.08	75.23	68.18	64.08	55.92	50.85
2017	47.79	50.27	56.24	56.87	61.18	69.80	77.61	75.11	76.75	M	57.82	52.06
2018	56.67	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	53.00	55.16	66.05	72.69	74.98	68.40	60.18	55.38	48.45
2020	48.84	49.72	48.82	55.72	62.44	65.23	71.84	77.77	73.40	66.08	M	M
NCEI Climatology	49.14	49.53	52.10	55.34	60.60	66.45	73.46	74.65	70.00	61.40	53.95	48.30

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
2010	M	M	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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