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 (USC00415891) 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	3.42	0.06
2005	0.28	1.12	0.22	0.00	1.72	0.61	1.15	3.24	0.00	2.98	0.00	0.02
2006	0.17	0.66	1.37	0.24	0.14	1.60	0.44	2.46	1.08	1.65	0.03	1.57
2007	0.79	0.06	1.94	1.45	2.51	1.88	0.71	2.33	1.70	0.01	0.38	0.27
2008	0.01	0.03	0.25	0.57	0.08	0.84	0.07	1.56	3.04	1.51	0.05	0.00
2009	0.02	0.15	0.23	0.26	0.11	1.90	3.29	0.20	0.56	0.63	0.02	0.46
2010	1.18	1.14	0.41	1.47	1.74	0.28	0.66	0.29	1.71	0.03	0.00	0.00
2011	0.00	0.03	0.00	0.00	0.36	0.00	0.00	0.19	0.64	0.77	0.16	0.73
2012	0.36	0.14	0.18	0.04	2.22	0.04	1.01	0.71	4.60	0.16	0.00	0.05
2013	1.11	0.11	0.00	0.17	0.17	0.10	1.05	0.30	0.55	1.54	0.39	0.93
2014	M	0.19	0.28	0.26	1.74	0.82	0.72	0.69	4.89	0.17	1.52	0.19
2015	1.78	0.08	0.97	0.83	2.03	1.15	0.22	0.88	2.44	1.38	1.20	0.57
2016	0.15	0.11	0.27	1.34	0.48	2.81	0.86	0.64	1.48	0.09	0.26	0.25
2017	0.17	0.03	0.31	1.37	1.11	2.57	1.24	2.35	2.82	0.19	0.08	0.05
2018	0.00	0.05	0.34	M	0.61	2.14	0.10	0.92	3.96	4.55	M	0.69
2019	0.09	0.00	0.61	2.16	4.34	0.60	0.03	0.02	M	M	M	M
2020	M	M	M	M	M	0.13	1.49	0.42	0.50	M	0.12	0.20
2021	0.04	M	0.05	0.89	2.39	6.29	2.20	0.45	0.03	0.05	M	0.02
2022	0.04	0.03	M	0.03	0.25	0.24	M	0.64	0.71	0.28	0.12	0.02
2023	0.03	0.04	M	M	0.63	0.26	M	0.16	0.23	0.74	0.45	0.73
2024	0.08	0.28	0.58	1.11	2.58	0.41	1.03	1.62	1.09	M	M	M
NCEI Climatology	0.77	0.56	0.75	0.85	1.70	1.55	1.45	1.58	1.87	1.18	0.86	0.45

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	8.7	8.9
2005	8.6	7.6	10.2	11.1	9.6	10.9	8.9	7.8	8.1	7.6	8.0	7.9
2006	9.7	9.0	10.6	10.9	10.5	9.1	8.6	7.2	8.5	8.8	8.5	8.5
2007	7.6	9.9	8.9	10.9	8.8	9.2	7.3	9.5	8.1	9.3	7.3	8.8
2008	8.6	10.1	11.5	11.2	11.6	12.6	10.4	7.3	6.0	8.4	7.5	9.3
2009	8.6	10.6	10.3	12.4	9.7	9.4	8.0	8.4	7.6	9.3	6.7	7.7
2010	8.4	8.5	11.5	11.7	10.6	10.8	9.4	8.2	7.6	7.4	9.3	8.4
2011	8.0	9.9	10.5	12.3	11.6	12.8	9.6	8.7	7.3	9.3	9.7	8.7
2012	9.3	10.2	10.4	10.7	10.0	11.0	8.9	8.2	8.4	8.6	7.5	8.9
2013	7.9	9.7	10.5	11.0	11.2	11.0	8.2	5.1	8.4	8.8	8.3	7.8
2014	9.4	9.0	10.7	11.4	10.0	13.3	9.5	8.2	9.1	7.4	9.1	8.2
2015	7.4	9.0	6.9	10.4	10.8	9.8	9.4	8.2	8.0	7.6	8.6	8.4
2016	8.0	8.4	10.4	10.1	11.2	9.1	10.5	8.5	8.4	8.9	7.9	8.3
2017	9.4	9.6	10.8	11.5	11.0	9.5	8.9	6.9	8.6	8.6	7.8	7.4
2018	8.0	9.1	9.9	11.5	11.7	11.6	8.0	8.9	7.6	8.5	7.8	8.1
2019	8.8	10.1	9.8	10.2	10.6	10.5	9.6	9.7	10.1	10.3	9.0	8.3
2020	9.2	10.1	10.0	11.0	11.4	12.4	10.7	9.7	8.2	10.2	9.6	9.2
2021	9.0	9.6	13.0	11.6	12.5	10.1	8.0	9.0	8.3	8.8	8.5	8.9
2022	9.0	9.8	10.9	12.8	12.9	11.5	10.0	8.6	7.7	8.5	10.1	9.0
2023	10.3	10.5	11.2	11.4	10.4	14.8	9.6	9.1	8.8	9.7	8.4	8.6
2024	9.1	10.3	10.3	11.2	10.7	12.7	10.1	9.5	8.9	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	66.80	59.20	56.79
2005	58.90	57.15	66.08	77.24	83.52	94.50	94.03	87.63	88.70	73.05	68.84	57.95
2006	64.17	61.76	68.29	81.32	90.35	93.26	95.46	90.70	81.38	74.74	68.84	56.33
2007	54.94	59.68	69.92	72.32	78.74	89.24	90.24	91.52	88.58	84.08	68.06	61.32
2008	57.84	69.68	72.70	81.38	90.41	97.64	93.26	90.65	82.52	77.29	67.58	61.79
2009	62.31	69.41	74.47	81.62	89.38	96.06	95.28	96.39	85.87	76.43	71.90	55.51
2010	57.40	56.23	70.73	77.17	85.89	97.31	89.91	98.12	89.41	81.82	70.61	64.18
2011	60.63	63.67	79.08	88.76	90.43	102.32	100.09	100.94	90.78	81.42	68.36	51.81
2012	62.76	62.47	77.02	87.33	88.97	98.48	95.66	96.78	87.64	77.58	72.96	63.31
2013	57.48	63.70	74.27	81.87	88.96	96.60	93.16	97.11	89.56	79.57	63.71	55.89
2014	60.23	63.18	72.37	81.47	87.68	94.93	94.80	95.26	82.87	82.84	63.63	59.68
2015	53.00	60.22	68.04	79.87	84.68	92.92	98.25	98.37	92.06	79.71	67.44	61.76
2016	59.42	68.09	75.75	80.33	87.53	93.26	100.96	93.36	88.62	86.48	69.27	59.94
2017	60.42	71.40	78.98	81.44	87.73	96.61	96.31	91.97	88.41	78.91	72.83	59.00
2018	59.89	66.38	78.19	83.10	98.46	100.47	100.71	98.85	87.31	73.85	65.50	58.27
2019	59.88	66.12	67.16	82.24	83.94	92.62	95.61	99.29	91.29	77.82	66.14	62.55
2020	61.13	59.41	71.52	78.93	91.79	97.06	100.57	99.85	86.03	80.89	72.37	60.35
2021	56.55	53.64	72.97	73.83	84.45	92.97	90.68	92.10	92.27	84.29	70.90	72.61
2022	59.42	58.54	72.03	84.40	94.58	96.30	100.52	93.23	88.63	77.61	62.23	60.19
2023	60.97	63.18	72.71	79.70	87.52	86.00	100.75	100.71	94.00	78.77	65.43	62.19
2024	54.74	68.03	72.35	81.23	91.13	97.10	95.55	99.29	85.91	M	M	M
NCEI Climatology	60.30	65.42	73.60	82.22	89.10	94.71	95.30	94.40	88.11	80.61	68.01	60.50

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	61.40	41.38	34.41
2005	37.78	38.46	41.65	49.92	60.99	70.80	70.33	67.19	64.22	52.38	40.70	32.23
2006	36.70	36.05	45.18	56.00	62.54	68.42	72.53	70.96	62.00	53.77	42.68	33.57
2007	30.55	35.92	46.57	47.78	60.51	67.10	69.57	70.90	67.22	56.97	43.82	36.01
2008	33.34	38.52	44.14	52.94	62.95	72.38	72.12	70.21	62.24	53.72	41.36	34.73
2009	33.51	41.58	47.54	55.07	62.61	72.59	73.89	73.02	63.68	52.61	42.95	32.66
2010	33.13	35.74	43.73	54.39	61.96	73.30	72.77	73.38	67.11	55.31	41.89	36.62
2011	31.31	34.22	48.75	58.51	63.78	76.11	77.48	77.92	65.57	55.74	44.64	35.55
2012	38.25	39.50	49.60	60.00	66.51	73.36	74.21	73.65	66.36	54.30	46.99	37.61
2013	35.96	37.69	45.86	51.12	62.16	72.75	72.21	74.03	68.04	55.78	42.17	33.57
2014	32.45	35.85	43.33	55.30	61.87	71.85	73.22	73.50	67.88	57.39	40.93	40.61
2015	33.16	35.54	44.64	54.85	60.77	69.60	74.24	73.03	69.61	58.77	44.98	37.18
2016	35.63	40.11	48.53	55.17	62.00	70.11	75.60	72.58	67.43	62.46	50.49	37.23
2017	37.32	44.49	51.69	55.69	61.43	71.41	73.27	70.61	66.98	55.06	47.40	34.87
2018	31.10	38.00	49.11	49.79	68.93	74.15	75.88	74.32	66.31	55.43	39.40	36.48
2019	43.28	47.86	45.16	54.62	61.87	68.05	71.90	75.76	70.51	50.28	39.56	35.94
2020	36.13	35.24	50.10	52.00	63.01	70.19	75.84	74.16	60.83	51.63	46.07	33.06
2021	33.97	29.43	45.40	51.03	60.58	69.40	69.90	69.90	66.10	55.23	43.40	43.71
2022	29.74	29.32	40.77	56.17	67.29	72.33	76.68	72.77	65.80	53.55	40.43	38.10
2023	37.00	37.21	45.19	51.60	62.65	65.50	77.50	76.65	70.53	56.16	46.03	38.61
2024	31.45	41.86	47.19	54.33	64.61	73.83	72.39	76.23	66.58	M	M	M
NCEI Climatology	30.99	35.00	42.31	49.70	59.70	67.40	69.70	68.69	61.81	51.50	39.79	32.20

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	64.10	50.29	45.60
2005	48.34	47.81	53.87	63.58	72.25	82.65	82.18	77.41	76.46	62.72	54.77	45.09
2006	50.44	48.91	56.74	68.66	76.45	80.84	84.00	80.83	71.69	64.25	55.76	44.95
2007	42.74	47.80	58.25	60.05	69.63	78.17	79.90	81.21	77.90	70.53	55.94	48.66
2008	45.59	54.10	58.42	67.16	76.68	85.01	82.69	80.43	72.38	65.50	54.47	48.26
2009	47.91	55.49	61.01	68.34	76.00	84.33	84.58	84.70	74.77	64.52	57.42	44.08
2010	45.26	45.99	57.23	65.78	73.92	85.31	81.34	85.75	78.26	68.56	56.25	50.40
2011	45.97	48.95	63.92	73.64	77.11	89.22	88.78	89.43	78.17	68.58	56.50	43.68
2012	50.50	50.98	63.31	73.66	77.74	85.92	84.93	85.22	77.00	65.94	59.97	50.46
2013	46.72	50.69	60.06	66.49	75.56	84.68	82.68	85.57	78.80	67.67	52.94	44.73
2014	46.34	49.51	57.85	68.38	74.78	83.39	84.01	84.38	75.37	70.11	52.28	50.14
2015	43.08	47.88	56.34	67.36	72.73	81.26	86.25	85.70	80.84	69.24	56.21	49.47
2016	47.53	54.10	62.14	67.75	74.76	81.68	88.28	82.97	78.02	74.47	59.88	48.58
2017	48.87	57.94	65.34	68.56	74.58	84.01	84.79	81.29	77.70	66.99	60.12	46.94
2018	45.50	52.19	63.65	66.45	83.69	87.31	88.30	86.58	76.81	64.64	52.45	47.38
2019	51.58	56.99	56.16	68.43	72.90	80.34	83.75	87.53	80.90	64.05	52.85	49.24
2020	48.63	47.33	60.81	65.47	77.40	83.63	88.21	87.00	73.43	66.26	59.22	46.71
2021	45.26	41.54	59.18	62.43	72.52	81.18	80.29	81.00	79.18	69.76	57.15	58.16
2022	44.58	43.93	56.40	70.28	80.93	84.32	88.60	83.00	77.22	65.58	51.33	49.15
2023	48.98	50.20	58.95	65.65	75.08	75.75	89.12	88.68	82.27	67.47	55.73	50.40
2024	43.10	54.95	59.77	67.78	77.87	85.47	83.97	87.76	76.24	M	M	M
NCEI Climatology	45.65	50.21	57.95	65.96	74.40	81.05	82.50	81.55	74.96	66.05	53.90	46.35

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	72.9%	59.0%
2005	68.1%	70.7%	51.0%	39.6%	58.9%	48.2%	51.1%	64.3%	54.3%	69.9%	48.4%	49.8%
2006	39.0%	46.0%	50.6%	44.8%	42.9%	42.1%	44.7%	63.8%	64.3%	64.0%	49.2%	56.3%
2007	72.6%	55.9%	56.6%	54.9%	66.6%	57.3%	59.9%	57.6%	61.4%	43.5%	55.4%	50.7%
2008	45.6%	36.7%	40.1%	33.2%	34.3%	38.5%	46.7%	53.9%	60.5%	56.0%	48.4%	43.6%
2009	39.9%	37.2%	41.4%	36.3%	49.7%	47.4%	50.1%	44.7%	59.0%	59.4%	48.4%	63.0%
2010	59.1%	65.6%	45.0%	52.2%	50.9%	50.6%	65.2%	44.5%	59.3%	43.8%	40.8%	41.0%
2011	43.0%	44.6%	38.6%	23.6%	28.3%	27.4%	33.4%	33.0%	35.1%	47.0%	46.9%	69.8%
2012	48.9%	53.0%	47.5%	37.1%	47.4%	37.9%	44.2%	41.5%	49.7%	53.7%	47.6%	41.1%
2013	57.1%	43.0%	33.9%	37.5%	37.9%	44.7%	47.3%	40.2%	48.9%	52.9%	60.3%	63.3%
2014	37.0%	50.8%	37.7%	33.4%	38.0%	49.9%	47.2%	43.1%	69.5%	51.8%	55.7%	65.1%
2015	67.7%	62.2%	61.0%	49.5%	58.7%	54.5%	46.9%	43.3%	48.9%	58.3%	61.9%	58.0%
2016	56.8%	44.8%	43.8%	47.5%	48.9%	52.1%	40.3%	54.3%	59.7%	53.3%	61.3%	59.0%
2017	51.9%	44.0%	46.4%	49.2%	38.6%	48.2%	45.5%	57.1%	51.5%	51.1%	54.4%	60.8%
2018	39.9%	48.5%	34.8%	37.1%	37.7%	45.9%	41.9%	47.4%	70.4%	77.5%	59.0%	65.9%
2019	58.1%	52.9%	57.6%	50.8%	64.6%	53.2%	46.6%	42.8%	54.2%	44.9%	60.1%	50.5%
2020	55.8%	58.2%	60.2%	46.8%	41.9%	40.7%	40.8%	36.0%	54.8%	45.7%	49.9%	43.4%
2021	56.6%	56.9%	41.0%	48.1%	60.2%	56.6%	60.7%	59.6%	45.7%	43.7%	48.2%	36.9%
2022	39.1%	42.8%	31.5%	31.8%	34.0%	39.8%	35.5%	53.0%	52.5%	56.0%	58.9%	54.1%
2023	44.9%	44.3%	41.2%	34.6%	51.8%	62.5%	27.9%	33.3%	45.0%	53.8%	62.1%	56.2%
2024	53.1%	42.4%	46.0%	38.1%	42.6%	47.2%	48.2%	38.6%	57.8%	M	M	M