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 (USC00420072) 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
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	M	M	M	M	M	M	M	M	M	M	M	M
2012	M	M	M	M	M	M	M	M	M	M	0.31	0.42
2013	0.09	0.08	0.52	0.19	M	M	M	M	M	0.12	0.03	0.12
2014	0.09	0.18	0.16	0.16	0.00	M	M	M	M	M	0.09	0.02
2015	0.02	0.00	0.04	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
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
NCEI Climatology	6.37	5.58	6.17	4.78	3.47	1.96	1.48	2.07	2.58	3.50	4.17	5.13

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
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	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
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
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
2008	16.83	28.87	35.91	43.91	48.51	M	M	M	M	58.08	43.18	29.84
2009	34.78	36.05	39.92	47.23	50.31	M	M	M	M	38.02	44.63	27.29
2010	33.77	32.08	39.98	45.00	44.32	M	M	M	M	48.25	36.89	35.25
2011	32.70	31.70	38.47	41.99	49.17	57.96	M	M	M	0.00	35.56	32.65
2012	34.96	32.34	45.01	51.74	M	M	M	M	M	M	44.82	31.05
2013	30.46	30.70	41.69	40.62	M	M	M	M	M	46.24	42.78	30.45
2014	35.93	35.23	41.97	46.20	39.28	M	M	M	M	M	38.86	34.40
2015	36.41	40.72	34.37	M	M	M	M	M	M	25.84	54.51	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
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
NCEI Climatology	30.70	30.78	36.80	42.29	52.61	64.40	72.90	71.29	62.20	49.49	37.40	30.20

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	5.73	-6.64	9.91	22.89	30.02	M	M	M	M	36.77	28.83	15.06
2009	19.26	19.90	22.95	27.47	33.58	M	M	M	M	25.51	26.08	11.09
2010	20.61	18.48	22.92	27.31	27.96	M	M	M	M	31.83	21.26	21.61
2011	16.36	15.21	23.94	26.34	31.86	39.43	M	M	M	0.00	20.92	16.46
2012	18.77	17.68	24.28	31.47	M	M	M	M	M	M	29.50	18.89
2013	15.46	14.04	25.23	25.61	M	M	M	M	M	32.09	27.68	15.07
2014	20.51	21.54	24.95	29.67	23.45	M	M	M	M	M	24.94	22.44
2015	23.59	27.84	21.20	M	M	M	M	M	M	21.16	37.92	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
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
NCEI Climatology	14.99	15.48	20.19	24.80	33.40	42.20	50.30	49.10	41.10	31.00	20.70	14.50

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	11.28	11.11	22.91	33.40	39.27	M	M	M	M	47.42	36.01	22.45
2009	27.02	27.98	31.43	37.35	41.94	M	M	M	M	31.76	35.36	19.19
2010	27.19	25.28	31.45	36.16	36.14	M	M	M	M	40.04	29.07	28.43
2011	24.53	23.46	31.21	34.17	40.51	48.70	M	M	M	0.00	28.24	24.56
2012	26.87	25.01	34.64	41.61	M	M	M	M	M	M	37.16	24.97
2013	22.96	22.37	33.46	33.12	M	M	M	M	M	39.17	35.23	22.76
2014	28.22	28.39	33.46	37.93	31.36	M	M	M	M	M	31.90	28.42
2015	30.00	34.28	27.78	M	M	M	M	M	M	23.50	46.21	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
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
NCEI Climatology	22.85	23.13	28.50	33.55	43.00	53.30	61.60	60.20	51.65	40.25	29.05	22.35

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
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	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
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