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 (USC00218323) 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	M	M	M	M	M	M	M	M	M	0.25	0.66	0.00
2005	0.14	0.42	0.48	4.22	3.05	3.74	1.41	1.36	6.42	1.44	1.26	0.32
2006	0.11	0.00	1.12	2.42	0.91	3.00	1.17	2.25	1.18	0.13	0.30	0.81
2007	0.07	0.24	0.82	0.74	0.79	1.41	0.26	1.98	1.02	2.70	0.01	0.25
2008	0.01	0.01	0.05	0.74	1.51	0.83	0.53	0.59	1.07	1.91	0.34	0.06
2009	0.14	0.08	0.18	0.22	0.55	1.78	1.79	3.01	0.93	M	M	0.00
2010	0.32	0.24	0.67	1.77	1.25	5.93	3.69	3.05	11.80	0.40	0.38	1.27
2011	0.42	0.59	1.34	1.59	2.93	8.19	3.21	1.04	0.08	0.37	0.00	0.33
2012	0.08	0.98	0.96	1.39	7.79	0.61	0.50	2.99	1.13	0.29	0.48	0.54
2013	0.11	0.40	0.76	1.60	2.55	6.03	0.28	1.66	1.03	2.34	0.17	0.04
2014	0.04	0.11	0.15	1.54	2.20	5.96	1.10	2.32	2.46	0.47	0.10	0.50
2015	0.17	0.05	0.29	0.51	2.20	2.19	0.05	3.14	2.99	0.99	1.55	0.42
2016	0.06	0.01	0.69	2.28	3.44	1.87	0.95	4.12	3.12	2.04	1.22	0.57
2017	0.06	0.35	0.20	2.53	3.77	2.68	2.55	5.73	1.41	4.12	M	M
2018	0.03	0.25	1.47	0.72	1.77	6.79	9.16	5.43	22.00	1.92	0.56	0.43
2019	0.06	0.16	2.47	4.41	3.84	2.91	3.78	4.26	5.22	3.54	0.42	1.24
2020	0.26	0.07	1.19	0.72	2.76	3.71	6.87	4.97	1.07	0.90	0.72	M
2021	0.24	0.03	1.55	1.06	1.82	0.93	1.17	5.84	3.02	2.54	0.36	0.46
2022	0.59	M	1.68	2.88	6.31	2.93	2.24	2.22	1.45	0.84	1.38	1.26
2023	0.21	0.41	0.31	2.61	6.60	2.93	0.92	1.62	0.23	5.31	0.05	2.44
2024	M	0.10	0.68	4.33	1.34	M	M	M	M	M	M	M
NCEI Climatology	0.64	0.77	1.44	2.86	3.96	4.48	3.54	3.43	3.80	2.26	1.32	0.74

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	M	M	M	M	M	M	M	M	M	5.6	10.4	12.1
2005	10.3	10.8	11.0	10.8	12.3	9.2	8.5	7.5	10.6	9.1	12.2	9.5
2006	12.1	11.5	10.7	11.6	12.1	8.3	8.4	6.9	8.3	10.3	10.4	11.0
2007	13.7	11.1	11.5	12.0	12.9	9.9	7.9	6.3	11.6	11.1	11.9	9.9
2008	11.8	11.5	10.4	12.5	9.8	4.5	3.8	3.5	5.1	4.6	8.7	10.3
2009	9.8	7.4	8.8	8.8	8.4	4.5	3.6	7.0	6.5	M	M	12.9
2010	10.8	7.8	8.9	8.9	9.8	6.7	7.0	7.3	8.3	10.0	12.0	10.8
2011	10.6	13.0	10.3	11.8	11.9	10.2	7.7	6.9	8.1	10.9	12.0	11.7
2012	12.7	10.3	12.2	11.9	10.5	8.6	6.7	6.4	8.1	10.2	7.8	8.2
2013	11.1	9.1	9.7	10.3	7.7	4.3	5.0	3.8	5.9	7.5	11.2	8.7
2014	13.4	11.6	10.9	12.5	9.3	8.6	8.5	4.7	7.4	9.7	13.1	11.1
2015	11.4	12.3	12.0	11.7	10.8	7.8	7.3	8.7	9.0	10.1	11.6	10.7
2016	10.6	12.8	10.9	12.5	9.6	9.3	7.8	6.7	8.3	9.6	11.1	12.9
2017	10.4	12.3	11.3	11.0	9.6	9.2	7.2	6.4	8.6	10.9	11.7	11.5
2018	8.7	10.7	9.8	10.6	8.9	9.5	7.0	7.1	8.2	9.7	11.0	10.2
2019	10.8	10.6	10.1	9.2	9.7	8.6	6.9	6.5	8.6	10.5	9.9	9.6
2020	10.5	12.2	11.0	9.8	9.8	9.6	4.7	8.2	8.7	10.0	12.5	10.4
2021	10.1	8.7	11.1	11.7	9.6	7.9	6.9	7.9	9.3	9.4	11.8	10.7
2022	12.9	11.3	7.9	8.8	9.2	9.4	7.3	7.3	7.8	9.6	13.8	14.7
2023	12.4	13.9	12.7	14.2	10.6	8.1	7.9	8.4	8.8	10.8	11.7	11.2
2024	11.7	12.1	12.1	14.5	10.5	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
2004	M	M	M	M	M	M	M	M	M	59.13	46.34	33.62
2005	23.46	36.24	41.23	60.68	64.28	78.98	82.46	79.09	77.96	60.80	44.90	24.68
2006	34.67	28.91	38.91	61.22	70.03	78.98	85.54	77.81	67.16	55.63	45.62	35.95
2007	26.60	21.61	44.72	53.12	72.35	79.52	83.62	78.34	76.16	63.24	43.76	27.53
2008	27.41	29.58	39.55	55.52	70.44	76.14	82.06	79.21	72.02	58.92	40.63	22.08
2009	19.94	29.08	38.90	54.25	70.35	73.75	76.35	76.13	76.30	M	M	14.11
2010	16.33	20.86	42.44	63.90	68.54	76.08	81.78	82.66	68.76	63.01	40.92	20.11
2011	17.47	23.82	32.34	51.19	64.16	75.80	84.73	79.19	70.68	63.83	45.92	35.43
2012	32.80	34.74	57.46	60.14	71.16	81.61	87.66	79.67	74.95	55.06	44.85	28.77
2013	24.93	25.28	32.04	44.03	66.05	76.69	82.68	81.65	78.39	57.08	42.39	20.07
2014	23.35	20.83	37.34	53.32	69.02	77.74	78.99	79.96	72.34	61.46	33.90	31.33
2015	27.96	22.58	48.54	61.63	68.49	78.96	82.35	78.05	77.80	63.20	48.94	34.32
2016	25.71	32.59	48.75	58.83	71.69	82.02	82.61	80.51	74.39	61.78	51.88	27.05
2017	27.06	42.32	41.63	57.89	68.40	80.64	83.80	75.23	75.99	59.67	45.09	28.61
2018	27.54	23.21	36.12	43.82	76.80	79.89	81.72	79.62	72.25	54.11	35.32	30.25
2019	18.94	15.01	34.09	53.91	63.42	79.56	78.29	75.13	74.30	51.74	37.88	29.74
2020	25.79	28.34	44.19	55.40	65.25	84.31	83.61	81.95	72.37	52.10	49.22	37.06
2021	31.24	18.05	48.81	56.43	69.05	86.35	83.84	82.45	74.49	61.90	47.08	32.80
2022	24.33	27.88	39.10	48.07	68.70	82.67	84.25	81.50	77.49	63.54	41.06	21.63
2023	23.84	28.59	31.29	52.28	74.27	82.52	80.66	82.57	78.20	58.59	48.98	40.77
2024	23.81	43.05	45.76	58.28	67.78	M	M	M	M	M	M	M
NCEI Climatology	22.80	27.45	39.00	54.41	68.11	78.90	82.20	79.59	72.90	58.40	41.39	27.79

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	M	M	M	M	M	M	M	M	M	42.67	30.26	18.26
2005	9.70	18.82	22.19	40.22	45.65	60.44	63.24	59.87	56.42	41.35	28.28	15.63
2006	24.92	12.78	26.37	42.56	50.93	59.96	65.10	60.97	48.08	35.89	25.70	21.49
2007	12.43	6.80	28.69	33.80	51.34	58.70	62.48	60.97	53.06	45.35	27.68	14.35
2008	11.56	11.14	24.51	36.14	48.84	57.99	61.91	59.12	50.00	38.60	25.81	3.14
2009	2.64	11.03	22.36	33.95	45.97	55.73	56.89	57.04	55.95	M	M	0.62
2010	5.23	7.55	29.41	40.83	47.68	58.53	63.06	64.16	49.29	41.68	25.72	6.89
2011	0.36	8.35	18.33	35.75	46.38	58.71	67.16	60.04	48.78	42.38	27.23	18.30
2012	14.92	17.99	36.65	39.16	51.90	60.02	67.76	58.69	48.54	36.18	25.88	11.63
2013	7.92	9.16	17.70	29.16	47.95	59.51	63.77	62.79	56.31	40.12	23.31	4.11
2014	1.71	3.06	19.09	34.35	49.15	60.37	60.69	62.04	53.06	41.09	17.72	19.31
2015	14.21	5.19	27.48	38.47	48.43	60.38	63.07	60.52	58.11	42.61	33.14	22.56
2016	11.61	19.76	32.12	39.04	50.74	61.50	63.66	62.65	55.90	43.01	35.64	13.28
2017	14.64	24.20	25.55	39.03	48.51	60.45	64.12	58.78	55.75	41.25	27.66	13.17
2018	10.73	6.16	24.64	27.26	56.23	63.51	63.61	62.57	55.51	36.69	20.56	17.80
2019	9.85	5.90	21.32	37.33	45.74	60.26	68.77	58.92	57.02	37.52	26.12	17.25
2020	12.32	12.51	28.86	33.98	48.46	63.20	65.21	62.76	52.04	34.77	31.34	17.81
2021	18.28	5.13	31.54	36.42	48.80	63.06	65.27	63.06	59.44	45.19	29.66	16.02
2022	2.12	5.07	24.94	34.57	50.20	62.26	65.65	61.59	54.66	40.10	25.10	7.54
2023	9.80	9.63	15.99	32.48	51.39	61.70	59.70	62.08	55.04	40.13	26.00	25.26
2024	11.15	23.68	23.41	38.90	47.30	M	M	M	M	M	M	M
NCEI Climatology	5.31	9.48	21.49	33.61	47.10	58.00	61.60	59.11	50.60	36.90	23.90	11.80

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	M	M	M	M	M	M	M	M	M	50.90	38.30	25.94
2005	16.58	27.53	31.71	50.45	54.96	69.71	72.85	69.48	67.19	51.07	36.59	20.15
2006	29.79	20.85	32.64	51.89	60.48	69.47	75.32	69.39	57.62	45.76	35.66	28.72
2007	19.52	14.20	36.70	43.46	61.85	69.11	73.05	69.65	64.61	54.30	35.72	20.94
2008	19.49	20.36	32.03	45.83	59.64	67.06	71.99	69.16	61.01	48.76	33.22	12.61
2009	11.29	20.05	30.63	44.10	58.16	64.74	66.62	66.58	66.13	M	M	7.37
2010	10.78	14.20	35.93	52.36	58.11	67.30	72.42	73.41	59.02	52.35	33.32	13.50
2011	8.91	16.08	25.34	43.47	55.27	67.25	75.95	69.61	59.73	53.10	36.57	26.87
2012	23.86	26.37	47.06	49.65	61.53	70.81	77.71	69.18	61.74	45.62	35.37	20.20
2013	16.42	17.22	24.87	36.60	57.00	68.10	73.22	72.22	67.35	48.60	32.85	12.09
2014	12.53	11.94	28.21	43.83	59.08	69.06	69.84	71.00	62.70	51.27	25.81	25.32
2015	21.09	13.88	38.01	50.05	58.46	69.67	72.71	69.28	67.96	52.91	41.04	28.44
2016	18.66	26.17	40.44	48.94	61.22	71.76	73.14	71.58	65.14	52.40	43.76	20.16
2017	20.85	33.26	33.59	48.46	58.45	70.54	73.96	67.00	65.87	50.46	36.37	20.89
2018	19.13	14.69	30.38	35.54	66.52	71.70	72.67	71.10	63.88	45.40	27.94	24.03
2019	14.40	10.46	27.70	45.62	54.58	69.91	73.53	67.03	65.66	44.63	32.00	23.49
2020	19.05	20.42	36.53	44.69	56.85	73.75	74.41	72.36	62.21	43.44	40.28	27.44
2021	24.76	11.59	40.17	46.43	58.92	74.71	74.55	72.76	66.97	53.54	38.37	24.41
2022	13.22	16.48	32.02	41.32	59.45	72.47	74.95	71.55	66.08	51.82	33.08	14.59
2023	16.82	19.11	23.64	42.38	62.83	72.11	70.18	72.33	66.62	49.36	37.49	33.02
2024	17.48	33.37	34.58	48.59	57.54	M	M	M	M	M	M	M
NCEI Climatology	14.05	18.47	30.25	44.01	57.60	68.45	71.90	69.35	61.75	47.65	32.65	19.80

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	M	M	M	M	M	M	M	M	M	83.2%	73.4%	78.6%
2005	81.9%	80.8%	74.7%	66.0%	69.5%	73.2%	69.4%	66.8%	60.6%	65.1%	68.3%	81.3%
2006	83.3%	79.3%	84.0%	70.7%	64.0%	64.0%	66.3%	76.8%	73.7%	65.3%	67.3%	76.5%
2007	77.3%	77.7%	81.8%	66.0%	60.9%	64.6%	66.5%	75.3%	60.3%	65.4%	58.7%	73.1%
2008	64.1%	65.3%	65.0%	63.4%	62.5%	59.8%	63.2%	71.3%	71.4%	69.3%	79.5%	80.4%
2009	78.2%	73.3%	74.1%	61.3%	51.0%	63.2%	66.9%	74.5%	72.8%	M	M	80.6%
2010	83.2%	82.5%	79.0%	57.4%	58.1%	70.2%	73.1%	73.9%	72.8%	61.7%	74.9%	84.3%
2011	82.9%	79.4%	82.4%	74.7%	68.4%	69.8%	73.6%	73.5%	64.0%	58.1%	61.0%	72.2%
2012	72.5%	74.9%	73.1%	61.9%	64.0%	59.8%	67.5%	68.5%	51.0%	64.2%	71.6%	80.5%
2013	76.7%	83.3%	81.1%	76.3%	71.1%	68.3%	64.5%	73.1%	69.3%	71.2%	70.3%	77.5%
2014	73.5%	72.1%	73.1%	69.5%	61.6%	70.4%	69.7%	78.7%	75.4%	65.2%	74.9%	85.1%
2015	81.2%	73.4%	64.8%	54.6%	68.0%	71.3%	72.9%	77.6%	73.4%	65.3%	75.0%	86.4%
2016	83.8%	82.8%	76.6%	68.6%	59.3%	66.3%	75.4%	79.3%	77.1%	76.2%	77.2%	79.6%
2017	84.2%	74.9%	74.7%	72.5%	65.7%	60.3%	71.8%	82.9%	78.4%	70.6%	71.9%	75.5%
2018	81.5%	79.3%	85.2%	77.6%	65.7%	76.7%	75.9%	80.9%	76.9%	74.4%	83.0%	86.4%
2019	81.3%	83.1%	83.8%	77.9%	75.4%	66.4%	85.4%	77.2%	81.3%	73.3%	80.8%	86.4%
2020	86.6%	81.1%	81.5%	66.1%	67.9%	64.1%	75.8%	66.4%	60.1%	60.3%	63.1%	66.8%
2021	76.3%	69.0%	67.8%	55.9%	53.5%	44.7%	64.4%	64.2%	61.5%	63.9%	60.6%	68.9%
2022	67.7%	64.6%	67.7%	67.6%	59.7%	50.7%	63.7%	68.7%	56.6%	51.2%	81.1%	93.4%
2023	94.8%	90.2%	85.4%	72.6%	62.0%	71.4%	76.3%	83.7%	78.1%	79.7%	71.0%	83.6%
2024	85.9%	79.3%	63.2%	66.7%	67.3%	M	M	M	M	M	M	M