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 (USC00137700) 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
2004	0.21	0.32	0.47	2.17	2.86	0.01	1.01	0.40	9.75	0.14	0.61	0.00
2005	0.11	0.09	0.08	0.64	0.30	0.14	0.01	0.13	0.70	0.13	1.02	0.27
2006	0.36	0.29	0.42	1.34	0.03	0.82	0.05	0.00	0.60	0.02	0.07	1.56
2007	0.61	0.59	0.31	0.12	0.04	0.09	0.13	1.33	-26.91	-31.00	-30.00	-30.00
2008	-31.00	-29.00	-31.00	-30.00	-30.00	-30.00	-30.00	-30.00	-30.00	-31.00	-30.00	-28.00
2009	-31.00	-28.00	-31.00	-29.00	-31.00	-30.00	-31.00	-16.00	-7.00	-2.00	-19.00	-31.00
2010	-31.00	-28.00	-31.00	-28.00	-30.00	-22.00	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2022	0.00	0.00	0.00	M	M	M	M	M	M	M	0.00	0.00
2023	0.00	0.00	0.00	0.00	0.10	0.20	0.20	1.10	2.20	1.30	0.70	2.00
2024	M	0.80	1.30	1.30	3.00	3.30	0.10	0.20	0.10	0.40	0.70	0.70
2025	0.00	0.00	0.00	0.70	0.20	0.10	1.30	0.10	0.10	0.00	0.00	0.50
2026	0.00	0.00	0.10	0.30	0.60	0.00	0.00	M	M	M	M	M
NCEI Climatology	0.67	0.92	1.72	2.98	4.15	4.51	3.45	3.40	3.21	2.46	1.43	0.99

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	4.6	8.1	9.2	8.1	8.2	5.2	2.9	4.3	5.9	8.9	8.6	11.5
2005	10.7	10.0	11.4	12.3	13.5	10.9	7.4	5.9	8.8	8.6	12.1	9.0
2006	11.2	10.9	13.0	13.1	14.3	8.8	6.4	7.3	8.9	8.8	8.9	9.6
2007	11.7	10.3	11.8	12.4	13.6	10.7	7.3	6.4	8.7	9.3	11.1	7.1
2008	10.5	10.1	10.7	13.2	11.7	9.0	6.4	5.3	7.4	8.9	10.0	12.0
2009	10.7	10.4	11.1	12.1	11.9	8.3	6.1	6.1	6.1	13.8	7.2	10.0
2010	9.1	7.7	10.7	11.1	9.4	7.7	6.9	7.5	8.2	8.4	11.6	10.4
2011	10.3	11.3	11.6	13.0	13.6	10.7	6.7	5.7	6.2	9.2	10.9	9.3
2012	10.8	10.6	12.1	13.3	13.0	10.0	6.5	6.8	6.8	11.5	10.0	9.8
2013	10.6	11.8	12.4	12.3	12.2	10.4	7.2	6.0	8.1	9.8	11.0	10.1
2014	14.0	11.2	13.0	14.4	11.2	9.2	6.9	5.1	6.8	8.4	12.9	10.9
2015	10.4	12.0	10.9	12.0	M	7.8	6.5	6.7	8.0	9.2	11.1	10.8
2016	10.4	11.8	11.5	14.1	9.7	9.2	6.6	5.5	7.5	8.0	9.5	12.2
2017	9.9	10.8	12.3	11.2	10.1	9.7	6.2	5.5	7.1	9.1	9.8	10.2
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	11.1	11.9	11.8	8.9	8.0	6.0	5.5	5.2	8.9	0.0	0.0
2026	0.0	0.0	1.0	9.8	0.0	0.0	0.0	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
2004	26.49	28.22	49.15	64.08	70.74	76.63	80.95	77.78	77.30	62.42	48.69	35.80
2005	25.29	40.64	46.74	64.14	69.99	82.56	85.05	81.95	80.74	65.30	49.10	25.03
2006	38.88	33.95	43.79	64.16	73.09	82.90	87.07	82.47	66.13	57.36	47.82	37.39
2007	27.75	22.12	50.02	57.95	75.89	82.65	87.04	82.52	76.46	65.06	47.65	26.46
2008	23.38	25.21	38.82	54.79	67.85	80.26	83.78	80.48	74.58	60.95	44.01	24.72
2009	23.61	34.66	45.19	57.18	71.75	78.47	78.29	82.11	69.94	54.40	49.54	24.64
2010	18.41	25.44	47.01	66.81	71.85	80.24	84.87	85.01	74.01	67.76	45.07	26.59
2011	21.02	28.79	42.03	55.90	70.28	79.45	88.09	82.72	73.20	67.25	49.29	36.29
2012	35.31	35.67	63.53	65.98	78.23	84.59	91.80	85.30	79.90	58.52	48.94	33.85
2013	28.71	33.51	37.61	52.52	68.39	78.95	85.25	82.37	79.80	59.68	43.98	23.99
2014	28.08	24.59	42.19	59.29	73.58	80.31	80.05	79.90	74.27	63.72	37.57	32.64
2015	29.97	26.68	53.43	62.32	M	81.53	83.64	80.06	78.99	65.74	48.21	34.27
2016	26.25	33.57	53.13	60.01	72.59	85.02	84.77	82.96	77.74	64.26	54.43	30.76
2017	29.33	42.32	45.13	60.33	71.16	84.75	87.46	78.93	78.10	62.39	47.41	31.18
2018	28.41	24.88	42.59	49.80	77.27	83.94	84.20	81.73	74.98	56.72	37.74	32.60
2019	27.44	21.68	29.92	58.43	67.88	81.54	83.89	79.90	78.43	54.77	41.41	32.39
2020	29.05	34.58	48.23	59.59	68.06	87.22	86.30	84.72	75.10	55.68	50.53	37.46
2021	31.88	21.44	51.81	61.21	70.19	88.71	84.30	83.29	80.04	65.61	49.57	39.30
2022	31.07	34.51	47.42	M	M	M	M	M	M	M	19.60	25.40
2023	26.41	31.62	38.60	60.25	78.50	84.88	85.79	83.22	79.79	61.30	52.00	41.00
2024	24.44	46.86	50.76	61.52	74.74	82.62	83.80	79.79	82.54	71.39	47.62	35.94
2025	29.41	30.60	54.66	63.14	73.65	83.22	85.45	81.99	80.54	67.47	47.12	33.80
2026	29.16	45.93	56.12	61.73	73.58	82.17	88.58	M	M	M	M	M
NCEI Climatology	27.40	33.08	46.30	61.19	73.20	82.40	84.81	82.31	77.10	63.61	45.81	31.49

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	7.27	12.83	28.97	36.44	49.20	54.62	59.55	52.97	56.81	39.39	26.70	16.32
2005	9.05	19.75	21.84	39.65	45.71	61.85	61.92	58.46	54.85	38.65	26.90	10.65
2006	24.18	11.42	24.62	41.87	49.56	58.04	61.12	64.38	46.52	34.74	22.62	20.30
2007	9.65	6.10	30.69	34.63	52.67	59.02	61.71	62.91	49.97	42.46	23.54	9.22
2008	4.40	4.41	21.26	32.63	45.41	56.80	62.26	57.01	49.02	38.22	24.78	4.01
2009	2.82	14.37	24.73	35.68	46.87	56.69	55.43	60.42	48.06	47.95	29.14	6.60
2010	2.28	4.32	28.24	41.54	46.96	59.03	63.18	64.08	49.57	37.72	25.61	7.62
2011	2.68	11.49	23.92	34.32	47.01	59.13	67.76	58.47	44.40	38.08	23.93	14.02
2012	14.21	16.38	38.23	39.53	54.18	60.09	66.08	57.12	44.32	33.75	24.43	13.91
2013	8.70	14.27	21.25	30.74	47.58	59.56	60.69	61.01	53.67	37.15	19.90	4.29
2014	1.64	0.89	18.45	33.40	47.70	59.00	56.77	60.88	49.66	37.62	17.12	18.47
2015	11.95	4.78	23.53	37.26	M	59.15	60.02	58.54	56.86	41.54	29.98	20.47
2016	11.33	19.69	29.91	38.37	47.78	61.92	62.09	60.38	54.49	41.08	31.11	14.50
2017	15.79	22.47	26.31	38.76	46.13	57.71	62.84	55.55	52.89	37.91	22.81	11.94
2018	7.05	4.69	27.19	27.56	55.19	63.99	61.15	59.28	54.52	34.53	19.35	16.31
2019	9.04	2.69	13.60	36.24	46.21	59.31	64.43	58.51	57.07	33.88	21.71	16.90
2020	13.09	13.92	28.02	30.56	49.27	62.86	62.79	59.05	48.39	31.50	26.35	14.89
2021	17.05	2.52	29.85	35.32	47.70	59.55	62.13	62.07	52.55	41.26	26.02	16.82
2022	4.00	6.27	23.45	M	M	M	M	M	M	M	3.60	9.45
2023	9.21	11.64	20.37	35.63	53.90	61.47	62.52	59.72	55.83	39.77	25.07	23.69
2024	10.52	23.77	23.40	37.57	47.76	59.46	61.87	59.45	51.11	41.04	28.74	17.76
2025	6.17	6.76	27.88	35.23	47.45	60.35	65.05	60.58	53.20	44.62	27.79	12.83
2026	9.01	18.64	25.62	37.10	48.34	60.50	66.11	M	M	M	M	M
NCEI Climatology	9.40	14.07	25.19	36.10	48.40	58.89	61.80	59.51	51.21	38.60	25.40	14.50

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	16.88	20.53	39.06	50.26	59.97	65.63	70.25	65.37	67.06	50.91	37.69	26.06
2005	17.17	30.19	34.29	51.89	57.85	72.20	73.48	70.20	67.80	51.98	38.00	17.84
2006	31.53	22.69	34.20	53.01	61.32	70.47	74.10	73.42	56.33	46.05	35.22	28.85
2007	18.70	14.11	40.35	46.29	64.28	70.83	74.37	72.72	63.51	53.76	35.87	18.19
2008	13.90	14.87	30.04	43.87	56.85	68.36	72.89	68.84	61.99	49.71	34.70	14.23
2009	13.05	24.26	34.90	46.67	59.34	67.58	66.73	71.27	59.00	51.17	39.34	15.90
2010	10.35	14.88	37.62	54.18	59.49	69.64	74.02	74.55	61.79	52.74	35.34	17.10
2011	11.85	20.14	32.97	45.11	58.65	69.29	77.93	70.60	58.80	52.67	36.61	25.16
2012	24.76	26.03	50.88	52.76	66.21	72.34	78.94	71.21	62.11	46.13	36.68	23.88
2013	18.70	23.89	29.43	41.63	57.99	69.25	72.97	71.69	66.73	48.41	31.94	14.14
2014	14.86	12.74	30.32	46.34	60.64	69.66	68.41	70.39	61.96	50.67	27.34	25.56
2015	20.96	15.73	38.48	49.79	M	70.34	71.83	69.30	67.92	53.64	39.09	27.37
2016	18.79	26.63	41.52	49.19	60.19	73.47	73.43	71.67	66.12	52.67	42.77	22.63
2017	22.56	32.40	35.72	49.54	58.64	71.23	75.15	67.24	65.50	50.15	35.11	21.56
2018	17.73	14.78	34.89	38.68	66.23	73.96	72.68	70.51	64.75	45.63	28.54	24.45
2019	18.24	12.19	21.76	47.33	57.05	70.42	74.16	69.21	67.75	44.33	31.56	24.65
2020	21.07	24.25	38.12	45.08	58.67	75.04	74.55	71.89	61.74	43.59	38.44	26.18
2021	24.47	11.98	40.83	48.27	58.95	74.13	73.22	72.68	66.30	53.43	37.79	28.06
2022	17.54	20.39	35.44	M	M	M	M	M	M	M	11.60	17.42
2023	17.81	21.63	29.49	47.94	66.20	73.18	74.15	71.47	67.81	50.54	38.53	32.34
2024	17.48	35.31	37.08	49.54	61.25	71.04	72.84	69.62	66.82	56.21	38.18	26.85
2025	17.79	18.68	41.27	49.18	60.55	71.78	75.25	71.28	66.87	56.04	37.45	23.31
2026	19.08	32.29	40.87	49.42	60.96	71.33	77.34	M	M	M	M	M
NCEI Climatology	18.40	23.57	35.75	48.64	60.80	70.65	73.30	70.91	64.15	51.10	35.60	23.00

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
2004	72.3%	79.6%	72.7%	56.2%	66.2%	64.1%	72.5%	72.0%	67.6%	67.1%	74.5%	73.4%
2005	78.6%	75.8%	67.1%	61.4%	61.8%	67.5%	70.9%	76.1%	68.6%	70.6%	73.5%	87.3%
2006	83.7%	75.3%	78.9%	68.5%	62.7%	62.9%	70.4%	80.1%	76.1%	70.0%	73.8%	76.5%
2007	80.8%	80.7%	82.0%	65.9%	65.6%	66.8%	69.7%	81.4%	73.7%	73.7%	66.0%	85.4%
2008	81.0%	83.3%	79.8%	71.6%	65.0%	66.8%	76.0%	77.4%	76.0%	71.5%	79.4%	81.5%
2009	80.7%	76.8%	77.4%	66.0%	61.9%	70.9%	78.3%	80.6%	65.6%	77.8%	82.4%	86.7%
2010	87.0%	83.1%	79.8%	64.9%	62.6%	74.6%	79.0%	80.5%	75.7%	66.5%	74.8%	87.3%
2011	82.8%	81.9%	80.8%	73.7%	66.8%	73.0%	79.4%	78.7%	70.3%	61.4%	67.2%	78.9%
2012	77.1%	82.8%	74.4%	64.4%	67.7%	65.6%	70.2%	70.7%	57.5%	68.4%	73.9%	79.7%
2013	79.4%	80.8%	78.3%	73.3%	72.3%	70.8%	68.7%	78.2%	72.5%	73.5%	72.5%	79.2%
2014	73.5%	76.1%	71.4%	67.5%	62.2%	74.1%	74.7%	81.3%	76.8%	67.7%	74.9%	83.5%
2015	81.1%	72.8%	64.3%	61.9%	M	69.7%	75.2%	79.0%	75.8%	66.3%	78.2%	85.9%
2016	84.2%	83.4%	74.3%	70.0%	66.0%	67.6%	77.6%	79.4%	76.0%	76.8%	77.3%	79.0%
2017	82.7%	76.5%	74.2%	71.6%	66.0%	62.1%	73.2%	78.4%	76.3%	70.8%	71.0%	75.7%
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	61.5%	65.5%	59.1%	56.9%	68.4%	74.3%	74.3%	67.3%	63.0%	71.9%	76.4%
2026	68.5%	63.5%	63.0%	64.7%	55.7%	63.8%	75.5%	M	M	M	M	M