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 (USC00413485) 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	M	6.07	0.65
2005	1.08	1.67	0.82	0.25	1.26	0.65	0.50	1.40	0.06	0.46	0.34	0.10
2006	1.40	0.96	1.36	1.50	2.16	0.45	0.55	0.05	0.46	1.90	0.34	1.77
2007	4.91	0.24	3.30	0.09	4.38	2.75	0.74	0.19	0.85	0.62	1.22	0.62
2008	0.24	0.17	1.47	0.56	0.92	0.29	0.23	1.48	0.30	1.42	0.18	0.23
2009	0.30	0.20	0.73	0.37	0.06	1.92	2.70	0.82	3.44	2.94	0.60	0.73
2010	2.41	1.23	1.39	0.93	0.99	0.93	1.43	0.53	5.23	0.05	0.58	0.71
2011	1.12	1.17	0.07	0.11	1.75	0.52	0.05	0.00	0.53	2.64	1.25	2.78
2012	1.61	2.43	4.10	1.39	2.68	3.06	0.47	1.18	2.48	0.19	0.00	0.14
2013	3.22	0.45	1.93	0.86	5.01	0.70	4.68	0.00	7.67	3.46	1.34	1.03
2014	M	0.13	0.28	0.56	5.01	2.97	0.69	0.45	0.71	3.26	1.27	0.32
2015	1.57	0.45	1.49	2.26	6.14	1.03	M	0.07	0.70	5.58	2.03	0.87
2016	0.05	1.55	2.35	5.06	2.98	2.18	0.76	3.97	0.80	0.20	1.96	0.76
2017	1.75	1.55	1.60	3.08	M	M	M	0.19	0.75	2.26	0.88	0.77
2018	0.10	2.97	2.44	0.55	2.78	2.87	0.37	2.82	6.38	9.02	1.51	2.26
2019	0.75	0.07	0.92	1.60	3.50	3.47	0.73	2.20	0.32	1.56	0.11	0.00
2020	0.00	0.00	0.02	4.13	2.49	1.40	0.76	0.47	5.53	0.79	0.68	1.08
2021	0.30	0.06	0.74	2.61	4.50	1.05	3.00	1.91	2.27	1.67	1.56	0.00
2022	0.07	0.30	1.31	1.76	3.62	0.72	0.00	1.20	0.33	1.87	4.75	0.46
2023	0.93	0.65	0.52	1.76	1.45	0.78	0.00	0.07	2.63	7.47	0.63	3.60
2024	2.78	1.36	2.02	5.71	10.93	0.92	1.26	1.23	2.37	0.02	0.87	M
NCEI Climatology	2.32	2.64	3.22	3.19	4.14	3.39	2.97	2.97	2.94	4.18	2.63	2.53

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	M	5.3	6.1
2005	6.9	5.7	7.2	8.6	6.1	5.6	4.9	4.2	4.2	4.8	6.1	5.1
2006	7.9	6.8	8.1	7.9	7.0	4.9	5.7	5.4	5.4	5.1	2.8	4.8
2007	4.7	6.9	6.3	4.9	3.7	4.7	3.1	4.2	2.7	1.9	4.9	5.6
2008	6.5	7.0	9.1	7.9	6.7	8.4	5.6	3.4	3.3	3.6	4.8	7.1
2009	6.0	8.0	8.1	7.8	3.9	6.0	4.4	4.0	3.5	5.1	3.3	4.3
2010	5.4	6.1	7.9	7.4	5.6	5.9	4.7	3.8	3.6	3.9	8.2	7.5
2011	6.0	9.3	8.7	10.6	9.2	9.0	6.5	6.0	6.0	6.1	7.7	5.5
2012	7.0	6.8	7.3	6.6	6.3	5.0	5.4	5.5	5.4	6.6	3.9	6.5
2013	6.4	7.4	8.0	8.2	8.0	6.4	5.6	4.7	4.1	5.2	5.5	4.9
2014	7.3	7.2	7.6	7.5	7.7	7.4	4.7	5.1	4.4	5.0	6.1	5.2
2015	4.5	5.5	5.1	5.9	6.4	4.8	7.1	4.1	3.7	4.6	5.2	4.7
2016	4.3	5.5	6.8	4.5	3.8	4.2	6.6	4.0	3.0	4.2	4.2	5.2
2017	6.2	6.6	6.7	7.2	M	M	M	6.6	4.0	4.8	4.7	3.8
2018	4.8	5.5	6.1	5.8	6.1	7.7	5.4	5.2	3.2	5.0	6.2	6.0
2019	6.3	6.7	7.0	7.5	7.1	5.6	5.6	4.2	4.8	6.0	5.5	4.2
2020	5.7	7.2	6.2	6.0	6.3	5.7	5.1	5.0	4.5	4.8	4.8	5.4
2021	5.4	5.6	7.7	6.7	5.7	4.7	3.6	4.5	3.2	5.0	4.9	5.7
2022	5.7	6.7	8.6	9.6	8.8	2.5	0.0	0.0	0.0	0.0	0.0	0.0
2023	0.0	0.0	0.0	1.9	4.6	6.2	6.3	6.5	5.3	6.3	5.4	5.8
2024	6.9	7.9	7.2	7.7	6.1	5.5	5.4	4.6	4.6	5.0	6.4	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	75.71	66.97	62.28
2005	62.09	62.69	69.64	78.71	83.69	92.36	95.52	93.26	93.56	80.60	75.68	60.03
2006	68.20	63.05	73.11	84.14	87.88	93.32	96.10	99.12	89.90	81.82	71.48	62.89
2007	59.29	63.71	73.11	65.84	81.68	86.95	88.61	95.23	89.66	86.82	65.00	63.37
2008	57.49	69.24	72.35	78.50	85.83	95.72	96.74	93.66	87.14	79.85	71.00	62.14
2009	64.23	69.74	71.05	77.35	84.96	95.18	97.09	97.09	84.20	74.15	70.16	54.30
2010	55.81	52.51	68.75	76.76	87.10	92.65	92.52	98.60	88.04	82.05	70.34	62.54
2011	56.85	63.18	74.68	85.07	85.63	98.06	100.86	103.13	94.64	80.83	69.86	57.20
2012	63.99	64.09	74.33	83.06	86.75	94.16	96.63	96.57	89.12	79.09	69.26	63.94
2013	61.09	65.49	70.90	75.56	83.45	93.92	93.78	96.57	91.52	78.34	63.68	56.97
2014	60.34	60.99	68.81	77.78	83.56	89.24	93.08	96.57	89.12	83.15	66.00	59.12
2015	55.52	58.42	67.71	77.87	81.59	90.44	96.22	97.67	92.30	83.04	67.52	65.21
2016	59.46	68.31	72.70	76.76	80.77	91.16	97.03	92.33	89.06	83.68	71.90	60.74
2017	63.88	71.86	75.49	78.98	M	M	M	86.00	89.30	80.19	73.30	58.97
2018	57.61	60.93	74.04	75.38	89.08	95.00	99.59	96.10	85.40	75.08	64.22	58.19
2019	58.01	60.93	65.56	77.06	82.28	90.14	94.07	96.63	95.30	77.17	67.16	63.58
2020	62.97	62.17	73.26	75.87	84.90	91.22	96.86	98.54	82.70	78.70	72.63	62.52
2021	59.00	54.04	72.00	74.23	79.18	89.37	90.61	93.19	91.10	82.74	69.60	74.26
2022	59.74	58.75	72.55	80.97	89.81	97.20	101.45	95.32	92.30	81.77	63.77	61.10
2023	64.77	64.68	73.16	77.29	83.38	93.80	101.16	104.06	95.07	80.06	67.64	65.32
2024	54.81	70.03	73.03	78.70	85.35	92.67	93.90	99.32	90.13	88.45	76.74	M
NCEI Climatology	60.31	64.48	71.20	78.00	84.50	90.80	95.10	96.20	89.61	79.80	69.50	60.91

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	69.54	47.91	37.72
2005	42.43	44.09	45.94	53.52	62.89	71.12	72.83	73.11	69.50	54.82	47.24	32.77
2006	41.13	39.59	52.38	61.10	66.36	69.02	74.10	75.20	65.66	57.08	46.64	39.03
2007	34.61	39.78	52.79	49.46	64.04	71.32	72.41	73.92	69.02	63.83	51.80	36.58
2008	34.79	39.82	46.98	54.98	64.57	73.10	72.76	72.94	62.60	53.95	45.02	36.41
2009	35.48	43.83	47.92	53.60	64.54	71.36	75.32	72.99	66.44	54.99	46.94	34.79
2010	35.60	35.28	43.50	55.28	64.92	73.75	75.39	75.08	68.48	53.02	45.86	38.21
2011	32.87	38.36	49.30	59.60	62.91	72.38	76.94	78.57	65.78	55.34	46.76	39.20
2012	37.92	43.30	52.50	59.48	66.32	71.42	73.57	73.69	66.14	55.92	42.35	40.48
2013	38.27	41.13	45.06	52.52	61.15	71.84	72.47	73.40	68.96	57.37	43.34	33.92
2014	33.57	36.89	42.51	55.16	60.86	71.18	71.83	72.18	68.00	59.87	43.00	43.38
2015	35.19	36.95	47.79	59.00	64.46	71.36	74.21	73.69	68.66	59.00	48.92	40.48
2016	36.01	42.74	50.29	56.30	62.77	71.36	74.97	73.98	69.02	59.75	51.56	41.75
2017	40.30	48.65	53.72	57.62	M	M	M	70.20	65.66	54.12	51.27	37.74
2018	30.85	40.61	50.12	48.74	66.95	74.24	75.26	73.46	69.68	58.65	41.96	39.26
2019	37.11	43.19	45.06	54.74	64.69	69.14	72.30	75.03	71.60	54.35	40.40	35.90
2020	41.13	38.62	55.29	53.87	62.26	69.74	75.26	73.52	64.76	53.26	47.63	35.19
2021	37.39	32.68	47.84	53.17	62.36	70.67	72.06	73.03	65.67	58.55	44.40	49.97
2022	31.61	31.43	43.00	58.73	67.23	73.47	76.29	74.10	66.90	54.42	45.53	40.84
2023	39.74	40.54	51.13	56.29	64.50	74.50	76.71	77.42	72.37	57.97	47.57	40.13
2024	34.32	46.62	51.77	58.60	67.58	73.57	73.16	74.68	66.50	60.19	58.29	M
NCEI Climatology	35.80	39.12	47.00	54.19	63.30	70.00	72.11	71.70	65.20	55.20	44.60	36.50

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	72.63	57.44	50.00
2005	52.26	53.39	57.79	66.11	73.29	81.74	84.18	83.18	81.53	67.71	61.46	46.40
2006	54.67	51.32	62.75	72.62	77.12	81.17	85.10	87.16	77.78	69.45	59.06	50.96
2007	46.95	51.75	62.95	57.65	72.86	79.13	80.51	84.58	79.34	75.32	58.40	49.97
2008	46.14	54.53	59.67	66.74	75.20	84.41	84.75	83.30	74.87	66.90	58.01	49.27
2009	49.85	56.78	59.48	65.47	74.75	83.27	86.20	85.04	75.32	64.57	58.55	44.54
2010	45.70	43.89	56.13	66.02	76.01	83.20	83.95	86.84	78.26	67.54	58.10	50.38
2011	44.86	50.77	61.99	72.33	74.27	85.22	88.90	90.85	80.21	68.09	58.31	48.20
2012	50.96	53.69	63.41	71.27	76.54	82.79	85.10	85.13	77.63	67.51	55.80	52.21
2013	49.68	53.31	57.98	64.04	72.30	82.88	83.13	84.98	80.24	67.85	53.51	45.44
2014	46.95	48.94	55.66	66.47	72.21	80.21	82.46	84.37	78.56	71.51	54.50	51.25
2015	45.35	47.69	57.75	68.43	73.02	80.90	85.22	85.68	80.48	71.02	58.22	52.85
2016	47.74	55.52	61.50	66.53	71.77	81.26	86.00	83.15	79.04	71.72	61.73	51.25
2017	52.09	60.25	64.60	68.30	M	M	M	78.10	77.48	67.16	62.28	48.35
2018	44.23	50.77	62.08	62.06	78.02	84.62	87.42	84.78	77.54	66.87	53.09	48.72
2019	47.56	52.06	55.31	65.90	73.49	79.64	83.18	85.83	83.45	65.76	53.78	49.74
2020	52.05	50.40	64.27	64.87	73.58	80.48	86.06	86.03	73.73	65.98	60.13	48.85
2021	48.19	43.36	59.92	63.70	70.77	80.02	81.34	83.11	78.38	70.65	57.00	62.11
2022	45.68	45.09	57.77	69.85	78.52	85.33	88.87	84.71	79.60	68.10	54.65	50.97
2023	52.26	52.61	62.15	66.79	73.94	84.15	88.94	90.74	83.72	69.02	57.61	52.73
2024	44.56	58.33	62.40	68.65	76.47	83.12	83.53	87.00	78.32	74.32	67.51	M
NCEI Climatology	48.05	51.80	59.10	66.10	73.90	80.40	83.60	83.95	77.40	67.50	57.05	48.70

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
2004	M	M	M	M	M	M	M	M	M	M	81.9%	67.1%
2005	75.4%	77.8%	65.4%	61.1%	71.8%	67.3%	67.3%	73.4%	65.5%	63.0%	56.9%	59.4%
2006	51.5%	65.3%	63.4%	64.7%	66.4%	58.6%	62.6%	54.2%	57.2%	63.8%	65.4%	67.6%
2007	76.9%	64.2%	71.3%	72.6%	76.8%	82.0%	83.3%	71.4%	75.5%	75.0%	73.6%	65.5%
2008	52.8%	62.0%	66.2%	64.4%	67.7%	59.3%	57.5%	66.7%	65.6%	63.5%	62.6%	60.8%
2009	57.8%	57.0%	61.7%	60.2%	69.1%	58.3%	56.4%	57.1%	72.5%	79.6%	74.2%	74.9%
2010	73.8%	77.5%	64.9%	72.1%	69.9%	70.2%	73.0%	58.3%	73.3%	57.7%	63.2%	62.2%
2011	68.1%	66.6%	61.3%	57.3%	64.4%	52.6%	47.5%	42.8%	39.8%	59.0%	65.3%	77.4%
2012	65.7%	69.9%	74.3%	66.5%	66.4%	61.6%	61.4%	56.2%	61.5%	63.1%	55.9%	60.7%
2013	71.2%	59.7%	57.2%	67.8%	68.8%	59.1%	60.0%	55.1%	62.2%	73.8%	73.1%	74.1%
2014	53.6%	69.9%	63.2%	61.1%	63.6%	72.7%	64.7%	57.9%	68.5%	65.2%	64.2%	77.9%
2015	70.0%	72.6%	78.2%	74.6%	81.8%	71.8%	60.0%	54.5%	58.7%	57.6%	76.2%	72.6%
2016	67.0%	58.8%	67.9%	70.6%	80.7%	69.2%	61.3%	71.7%	72.1%	68.0%	75.1%	71.3%
2017	64.3%	64.9%	67.1%	70.5%	M	M	M	71.6%	63.5%	60.6%	69.6%	71.3%
2018	59.2%	77.7%	64.3%	62.5%	66.5%	62.6%	51.3%	58.0%	81.1%	81.0%	68.6%	70.9%
2019	69.6%	74.8%	63.7%	67.8%	77.3%	71.1%	64.1%	63.5%	61.7%	63.6%	68.1%	66.9%
2020	71.7%	69.0%	77.1%	70.9%	68.4%	63.5%	61.8%	52.1%	76.2%	67.5%	67.4%	65.9%
2021	68.0%	70.1%	62.8%	68.1%	80.4%	73.7%	75.9%	69.2%	60.1%	66.1%	66.5%	71.2%
2022	56.5%	61.3%	51.1%	59.6%	64.4%	53.2%	47.5%	61.7%	57.5%	53.0%	77.0%	69.6%
2023	60.5%	64.5%	64.5%	69.7%	76.2%	69.6%	50.2%	42.3%	58.9%	67.7%	78.0%	71.0%
2024	70.2%	70.5%	77.9%	79.2%	86.4%	78.9%	73.7%	64.9%	73.1%	58.1%	85.9%	M