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
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	M	M	M	M	M	M	M	0.00	3.44	2.78	3.92
2008	3.28	2.51	3.49	4.79	3.12	5.58	3.09	2.43	3.13	1.54	3.06	4.80
2009	2.13	2.57	1.80	4.22	3.02	1.48	5.30	2.17	2.29	3.71	2.17	2.19
2010	1.83	1.62	0.39	1.37	2.54	4.36	3.25	3.72	4.61	2.67	3.88	2.72
2011	1.58	9.11	19.34	3.74	1.82	3.59	1.11	1.22	2.37	5.38	3.11	1.58
2012	4.10	1.06	2.25	2.62	2.77	5.00	0.92	2.63	3.90	4.73	2.16	2.86
2013	5.51	3.28	2.64	5.63	3.98	2.99	2.04	2.28	3.57	5.01	2.68	2.88
2014	2.40	1.55	2.11	4.29	2.55	3.54	2.69	3.25	2.72	3.47	3.54	2.45
2015	2.60	1.32	2.11	2.24	3.86	3.45	2.35	2.87	3.68	2.39	3.45	3.61
2016	2.40	3.98	5.70	2.56	1.94	1.45	3.81	4.37	1.87	1.97	2.71	4.32
2017	3.14	3.30	3.13	6.73	6.19	6.34	3.01	4.15	3.10	3.31	3.24	2.61
2018	2.92	2.37	1.41	4.10	2.74	1.62	2.84	3.15	3.12	3.59	4.11	2.67
2019	3.00	2.96	2.38	5.00	2.82	M	M	M	M	M	M	M
2020	M	M	M	M	M	M	M	2.32	3.40	3.43	2.31	3.37
2021	0.81	2.10	1.67	2.31	0.47	5.56	5.48	1.78	5.44	3.21	1.47	3.01
2022	1.42	2.91	2.17	2.53	3.79	5.12	2.29	3.05	2.74	2.48	1.65	4.05
2023	3.62	2.21	1.91	5.37	3.59	3.77	7.12	3.48	1.24	3.41	2.26	1.66
2024	2.32	1.46	1.09	3.87	3.02	5.28	3.61	4.78	2.65	1.97	2.63	3.40
2025	1.57	3.01	5.00	3.36	4.46	5.99	2.15	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2006	M	M	2.0	2.8	2.5	2.3	2.2	1.8	1.9	2.5	1.9	2.5
2007	M	M	M	M	M	M	M	M	2.1	2.0	2.3	2.4
2008	2.8	2.6	2.8	2.5	2.9	2.4	2.2	1.7	1.6	2.2	1.4	2.6
2009	1.8	2.6	2.8	3.0	3.0	1.9	2.1	2.1	1.8	2.0	1.6	1.4
2010	0.0	0.0	0.0	0.6	2.3	1.7	2.0	1.5	1.4	0.0	0.0	0.0
2011	1.1	2.7	2.7	2.9	2.6	2.0	1.4	1.5	1.7	2.1	2.3	1.8
2012	2.2	2.6	2.5	3.1	2.0	2.0	1.7	1.9	1.7	2.2	1.8	2.0
2013	1.9	2.3	2.6	3.1	2.6	2.3	2.0	0.9	1.8	1.9	2.6	1.8
2014	2.7	2.5	2.8	3.1	2.5	2.1	2.2	1.9	1.8	2.2	2.7	2.2
2015	2.3	2.4	2.9	3.1	2.5	2.0	1.9	1.8	1.4	2.3	2.0	2.2
2016	2.0	2.6	2.3	2.3	2.2	2.6	2.1	1.8	1.7	2.0	2.1	2.4
2017	2.1	2.4	2.6	2.5	2.5	2.3	1.9	1.6	0.8	2.2	2.2	1.8
2018	2.4	2.2	2.7	2.7	2.3	2.1	2.0	1.7	1.7	2.2	1.8	1.5
2019	2.2	2.6	2.7	2.6	2.3	2.3	2.0	2.0	1.7	2.1	2.1	2.0
2020	1.9	2.4	2.5	2.6	2.6	2.2	1.9	1.5	1.8	2.0	2.3	2.1
2021	1.7	2.1	2.8	2.4	2.1	2.1	1.7	1.6	1.7	1.6	1.7	2.3
2022	1.9	3.0	2.6	2.6	2.0	2.2	2.1	1.6	1.6	1.6	2.2	2.2
2023	1.5	2.4	2.6	3.1	2.1	1.7	1.5	1.5	1.3	1.8	1.8	1.6
2024	1.9	1.8	2.4	2.6	2.0	2.1	1.7	1.6	1.5	1.8	1.8	1.5
2025	2.2	2.2	2.3	2.6	2.4	2.1	1.9	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	M	M	M	M	M	M	M	68.92	57.95	36.18	23.56
2008	27.11	23.83	30.66	54.26	60.86	71.71	74.66	73.16	65.87	51.45	37.60	25.08
2009	15.81	27.89	37.34	50.05	61.44	70.32	70.51	72.71	66.62	46.96	45.80	22.81
2010	22.44	26.07	45.86	57.87	67.76	68.18	77.32	74.77	63.08	51.07	40.85	23.01
2011	18.50	25.01	33.57	47.91	63.82	71.25	80.18	74.66	67.77	53.52	44.88	29.87
2012	25.12	30.25	46.68	48.66	68.95	73.48	79.90	74.28	64.66	52.73	37.90	27.94
2013	25.77	24.01	34.73	45.88	66.36	69.38	77.52	73.78	64.99	54.06	35.20	19.81
2014	17.02	20.45	29.18	46.59	64.35	73.35	71.74	71.68	65.07	52.79	34.02	28.54
2015	19.06	12.01	32.35	49.35	67.50	69.94	77.19	72.65	71.27	50.70	44.83	37.71
2016	24.54	24.74	37.11	45.16	65.93	73.42	76.78	77.79	68.61	53.80	44.30	27.96
2017	26.94	29.57	29.91	50.53	58.77	69.57	73.83	70.68	69.61	58.86	36.77	19.64
2018	22.13	28.91	33.01	40.39	69.11	72.15	80.37	76.55	67.23	47.31	31.53	27.28
2019	17.91	23.51	32.38	44.23	57.42	70.15	80.31	73.79	65.74	53.33	31.74	28.51
2020	26.44	26.74	39.36	45.26	61.75	74.55	80.85	72.04	63.52	48.81	44.50	28.62
2021	25.07	24.84	40.60	52.38	63.71	73.95	72.41	78.22	65.32	58.49	39.09	31.29
2022	17.20	24.91	35.08	47.01	68.88	72.16	75.89	75.03	66.08	55.67	43.42	30.34
2023	27.05	27.48	35.46	51.44	65.24	72.23	76.31	70.60	69.54	55.17	36.70	32.47
2024	24.75	33.30	41.37	49.54	67.00	71.82	77.64	74.44	70.44	56.19	42.40	27.81
2025	20.33	21.32	37.81	47.66	62.45	72.98	79.12	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	M	M	M	M	M	M	M	44.45	36.67	18.79	4.72
2008	5.74	-1.39	4.84	26.85	34.25	51.50	52.26	49.25	40.33	30.12	20.04	3.27
2009	-9.15	3.51	13.45	26.91	36.56	45.91	50.79	50.16	39.67	32.35	25.80	-0.27
2010	6.09	7.52	20.20	31.23	41.95	49.37	55.93	51.31	44.34	32.62	22.67	11.07
2011	-2.07	1.32	9.67	26.26	41.93	49.43	55.42	51.39	44.20	35.72	26.32	15.33
2012	3.43	7.60	20.85	27.62	41.63	50.77	52.26	52.00	40.71	35.95	21.67	13.50
2013	1.37	4.46	17.03	26.58	39.47	50.10	54.02	50.30	41.62	35.00	17.34	1.95
2014	-3.76	-2.53	1.48	26.13	39.70	48.87	50.86	50.65	43.23	37.36	21.96	12.05
2015	-10.08	-14.16	6.13	26.52	41.48	46.84	51.67	53.25	48.36	32.52	27.65	25.73
2016	3.41	0.12	14.27	20.05	37.55	47.19	53.94	54.41	45.14	36.16	27.11	11.94
2017	10.52	8.49	6.27	29.98	40.07	49.38	53.36	49.13	45.97	37.66	20.45	2.35
2018	-0.00	6.50	14.56	19.86	38.83	45.57	53.36	54.45	45.81	33.47	17.59	9.89
2019	-5.98	0.18	6.27	25.46	36.71	46.34	54.03	48.62	41.66	32.69	16.81	10.47
2020	7.33	3.84	17.51	23.99	36.07	47.74	57.18	52.18	41.86	31.80	26.79	14.35
2021	9.35	-0.91	14.20	30.12	36.37	50.93	53.19	56.23	43.30	40.74	22.03	14.65
2022	-11.34	-2.43	13.66	27.63	40.92	48.03	51.65	51.56	43.04	30.65	23.84	16.21
2023	10.09	1.48	14.35	27.69	34.58	49.19	53.24	49.44	43.57	38.57	20.19	19.64
2024	12.63	9.21	20.82	29.81	42.95	50.76	54.90	50.64	45.30	32.53	27.74	13.74
2025	2.47	-0.37	14.46	23.80	38.95	50.00	54.82	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
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	M	M	M	M	M	M	M	56.68	47.31	27.48	14.14
2008	16.42	11.22	17.75	40.56	47.56	61.60	63.46	61.20	53.10	40.79	28.82	14.18
2009	3.33	15.70	25.39	38.48	49.00	58.12	60.65	61.43	53.15	39.65	35.80	11.27
2010	14.27	16.79	33.03	44.55	54.85	58.77	66.62	63.04	53.71	41.85	31.76	17.04
2011	8.22	13.16	21.62	37.08	52.87	60.34	67.80	63.03	55.99	44.62	35.60	22.60
2012	14.28	18.93	33.77	38.14	55.29	62.12	66.08	63.14	52.69	44.34	29.79	20.72
2013	13.57	14.23	25.88	36.23	52.92	59.74	65.77	62.04	53.31	44.53	26.27	10.88
2014	6.63	8.96	15.33	36.36	52.03	61.11	61.30	61.16	54.15	45.08	27.99	20.30
2015	4.49	-1.08	19.24	37.94	54.49	58.39	64.43	62.95	59.82	41.61	36.24	31.72
2016	13.97	12.43	25.69	32.61	51.74	60.30	65.36	66.10	56.88	44.98	35.70	19.95
2017	18.73	19.03	18.09	40.26	49.42	59.48	63.60	59.90	57.79	48.26	28.61	11.00
2018	11.06	17.71	23.79	30.13	53.97	58.86	66.87	65.50	56.52	40.39	24.56	18.59
2019	5.96	11.84	19.33	34.84	47.07	58.25	67.17	61.20	53.70	43.01	24.28	19.49
2020	16.89	15.29	28.43	34.62	48.91	61.14	69.02	62.11	52.69	40.31	35.64	21.48
2021	17.21	11.96	27.40	41.25	50.04	62.44	62.80	67.22	54.31	49.61	30.56	22.97
2022	2.93	11.24	24.37	37.32	54.90	60.10	63.77	63.30	54.56	43.16	33.63	23.27
2023	18.57	14.48	24.91	39.57	49.91	60.71	64.77	60.02	56.56	46.87	28.45	26.05
2024	18.69	21.26	31.10	39.67	54.98	61.29	66.27	62.54	57.87	44.36	35.07	20.78
2025	11.40	10.48	26.13	35.73	50.70	61.49	66.97	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
2006	M	M	77.5%	77.8%	75.0%	76.5%	78.2%	76.5%	86.8%	85.3%	89.0%	86.9%
2007	M	M	M	M	M	M	M	M	77.4%	87.5%	83.3%	86.1%
2008	83.3%	77.7%	68.1%	68.8%	67.7%	78.7%	77.7%	79.3%	83.3%	81.5%	87.3%	83.8%
2009	79.9%	77.2%	67.5%	70.9%	66.6%	75.0%	81.0%	78.9%	81.0%	86.6%	84.7%	86.9%
2010	85.9%	81.4%	63.9%	63.2%	69.7%	78.7%	75.2%	78.6%	85.1%	80.4%	84.1%	86.8%
2011	82.2%	75.9%	70.3%	70.9%	71.5%	73.2%	69.0%	74.2%	78.6%	82.2%	81.2%	88.3%
2012	84.6%	78.0%	73.3%	66.0%	64.6%	72.0%	64.2%	75.9%	79.3%	83.5%	81.8%	87.5%
2013	82.5%	80.6%	72.6%	70.6%	67.6%	73.2%	71.7%	73.3%	80.3%	83.2%	82.3%	84.0%
2014	77.7%	73.5%	67.4%	72.3%	69.5%	71.1%	74.9%	77.9%	82.5%	86.6%	87.3%	85.2%
2015	78.2%	69.8%	67.0%	66.8%	67.9%	71.6%	70.5%	78.3%	78.4%	78.4%	84.8%	86.6%
2016	84.0%	78.2%	74.5%	61.3%	62.8%	62.9%	71.0%	72.4%	77.8%	79.2%	82.5%	83.1%
2017	84.4%	77.6%	65.6%	73.7%	73.8%	72.7%	73.1%	77.6%	78.5%	78.4%	83.4%	79.6%
2018	78.8%	76.1%	66.0%	67.7%	61.4%	68.0%	66.4%	76.6%	80.3%	81.2%	86.6%	86.8%
2019	76.9%	76.6%	67.9%	73.7%	73.3%	67.8%	66.3%	68.4%	78.3%	80.9%	83.9%	83.8%
2020	82.3%	74.1%	69.8%	65.1%	60.2%	65.7%	68.7%	78.4%	78.5%	80.8%	79.2%	86.7%
2021	83.2%	74.4%	63.0%	67.5%	62.2%	71.6%	80.6%	79.6%	83.6%	87.2%	83.5%	81.8%
2022	75.0%	76.8%	74.2%	70.0%	65.9%	73.7%	74.2%	80.4%	83.0%	82.1%	76.7%	85.9%
2023	86.8%	78.5%	72.2%	72.0%	63.0%	72.5%	77.9%	78.9%	79.6%	84.1%	82.2%	85.2%
2024	83.4%	74.7%	69.1%	74.3%	70.4%	73.8%	75.3%	78.4%	80.7%	79.4%	82.2%	85.0%
2025	76.8%	74.5%	74.6%	68.4%	71.0%	71.7%	73.4%	M	M	M	M	M