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 (USW00012884) 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
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	0.00	0.00	0.00	0.34	0.37	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	0.05	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	0.05	M
2016	M	M	M	M	0.23	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	4.45	3.11	5.23	4.29	3.63	4.60	6.38	7.22	4.10	4.05	2.84	4.09

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	M	M	M	M	M	M	M	M	M	M	16.0
2010	14.4	13.5	13.6	15.3	11.9	10.8	12.4	11.3	13.6	7.9	14.0	12.2
2011	13.9	13.2	15.2	15.7	13.7	9.2	7.4	7.5	8.3	13.4	17.0	14.9
2012	14.5	14.8	16.6	11.1	8.4	12.3	7.1	8.4	10.8	11.9	10.2	14.6
2013	14.7	14.7	12.3	13.8	14.9	M	10.9	10.7	13.5	12.6	17.8	13.9
2014	12.9	12.5	13.7	13.2	12.0	9.4	7.5	7.9	11.1	10.6	12.6	12.2
2015	13.1	13.4	12.0	13.9	13.6	9.4	8.9	9.0	11.0	15.4	16.3	16.1
2016	15.2	15.2	16.5	14.7	10.0	8.8	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
2009	M	M	M	M	M	M	M	M	M	M	M	68.48
2010	64.92	63.75	83.33	90.11	83.45	93.89	134.71	88.88	85.34	81.70	75.14	66.20
2011	67.59	70.12	74.45	78.20	80.54	86.96	89.02	91.98	85.57	78.87	74.72	72.76
2012	71.08	70.86	75.49	77.93	84.00	84.57	88.73	88.70	84.63	80.48	74.48	71.79
2013	70.21	71.79	69.68	74.84	79.70	82.40	87.50	87.28	84.98	80.81	74.36	72.88
2014	66.43	70.19	70.90	74.60	77.99	85.10	89.02	89.83	86.12	81.35	73.16	73.28
2015	71.48	68.27	76.01	79.22	81.56	87.02	89.60	89.53	85.64	80.95	78.08	75.95
2016	69.26	68.00	74.21	76.28	80.37	84.20	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	62.00	65.17	69.90	75.80	81.90	87.41	88.70	88.80	86.30	79.21	70.50	64.20

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	M	M	M	M	M	M	M	M	M	M	60.32
2010	57.43	55.47	61.73	72.13	77.17	82.83	97.70	81.08	80.42	75.84	69.50	58.65
2011	59.99	62.66	67.71	73.52	76.19	80.60	81.76	84.55	78.94	73.60	68.84	66.90
2012	64.46	65.21	71.02	71.17	77.40	78.55	80.60	81.95	79.45	75.14	67.94	64.71
2013	65.39	64.98	62.89	69.68	73.70	82.40	80.23	80.48	80.18	76.17	68.54	66.49
2014	56.91	62.41	63.24	68.66	73.63	78.86	81.01	82.28	79.52	75.84	64.88	67.36
2015	63.47	60.20	69.10	73.04	76.76	80.06	81.99	82.40	78.44	75.78	73.22	71.02
2016	62.06	61.48	67.59	71.24	75.26	79.64	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	47.50	50.19	55.31	62.00	70.10	75.90	77.70	78.01	75.60	67.60	57.50	51.20

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	M	M	M	M	M	M	M	M	M	M	M	64.40
2010	61.18	59.61	72.53	80.23	80.31	87.12	103.55	84.98	82.88	78.77	72.32	62.43
2011	63.79	66.39	71.08	75.86	78.36	83.78	85.39	88.26	82.26	76.23	71.78	69.83
2012	67.77	68.03	73.25	74.55	80.70	81.56	84.66	85.32	82.04	77.81	71.21	68.25
2013	67.80	68.39	66.29	72.26	76.70	82.40	83.86	83.88	82.58	78.49	71.45	69.68
2014	61.67	66.30	67.07	71.63	75.81	81.98	85.01	86.06	82.82	78.60	69.02	70.32
2015	67.48	64.23	72.56	76.13	79.16	83.54	85.80	85.96	82.04	78.36	75.65	73.49
2016	65.66	64.74	70.90	73.76	77.81	81.92	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	54.75	57.68	62.60	68.90	76.00	81.65	83.20	83.40	80.95	73.40	64.00	57.70

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
2009	M	M	M	M	M	M	M	M	M	M	M	65.7%
2010	66.2%	66.5%	64.8%	79.4%	79.6%	76.3%	77.4%	76.4%	71.9%	57.1%	66.5%	61.6%
2011	65.8%	73.5%	75.0%	73.1%	72.2%	71.1%	72.5%	66.2%	68.9%	59.4%	69.0%	72.1%
2012	68.7%	78.7%	77.6%	69.1%	72.9%	75.9%	71.9%	71.3%	73.2%	65.3%	60.7%	69.9%
2013	75.0%	69.4%	61.7%	80.4%	77.6%	M	74.5%	74.0%	74.0%	67.3%	72.1%	74.1%
2014	66.6%	79.7%	74.2%	79.7%	76.8%	78.0%	69.9%	69.1%	73.7%	63.2%	62.4%	70.7%
2015	66.6%	65.1%	76.5%	80.2%	71.9%	72.5%	71.3%	68.6%	71.8%	68.4%	74.8%	76.0%
2016	65.0%	62.5%	77.9%	73.3%	75.2%	81.1%	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