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 (USC00381997) 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
2008	M	M	M	M	M	M	M	M	M	M	M	1.20
2009	1.67	1.24	2.91	1.02	2.20	2.32	4.76	0.61	0.62	0.05	0.13	5.29
2010	0.02	0.00	0.03	0.03	0.03	0.04	0.03	0.03	0.02	0.02	0.02	2.18
2011	1.16	7.18	3.93	3.08	3.02	1.10	8.52	6.83	0.68	1.77	1.25	0.42
2012	1.13	1.89	1.97	1.50	8.30	3.11	3.06	8.56	1.88	1.94	2.19	2.71
2013	0.65	4.83	2.69	4.39	3.93	6.37	5.65	4.59	0.65	0.80	3.61	3.45
2014	1.89	2.46	4.83	3.19	2.17	1.80	7.13	3.10	4.02	0.89	3.34	2.08
2015	3.55	3.25	2.67	2.55	1.08	2.92	2.45	6.26	3.48	10.47	4.84	4.09
2016	2.40	6.25	2.53	2.51	3.43	3.70	4.47	1.04	9.48	1.81	0.09	3.06
2017	2.01	0.93	1.12	3.62	3.12	2.93	4.08	10.69	4.51	5.67	1.24	3.39
2018	2.34	0.80	1.36	3.74	4.49	3.60	7.09	2.55	4.61	1.59	0.93	0.00
2019	0.00	M	0.00	0.00	0.03	0.04	M	M	M	M	M	M
2020	M	M	M	M	5.02	5.13	4.34	6.97	6.48	3.13	0.64	3.65
2021	3.42	2.90	1.95	0.39	1.13	4.87	3.06	4.02	2.98	2.45	0.80	1.78
2022	2.10	1.08	1.22	2.25	1.23	3.94	5.14	3.74	6.12	0.86	2.48	1.37
2023	2.40	2.55	0.89	2.89	1.36	1.68	3.21	3.93	3.84	1.43	1.59	7.82
2024	1.52	1.24	2.09	2.29	3.71	0.21	0.03	0.22	0.47	M	0.03	1.21
2025	1.55	0.71	2.85	0.81	5.87	6.40	4.37	2.73	1.87	3.67	0.11	0.02
2026	0.04	0.18	0.39	0.26	0.04	0.02	M	M	M	M	M	M
NCEI Climatology	4.28	3.69	3.76	3.16	3.33	5.34	6.89	7.81	6.00	3.83	3.21	4.03

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	M	M	M	M	M	M	M	M	M	M	M	3.7
2009	3.6	3.7	4.5	4.7	5.2	2.7	3.6	2.5	2.7	3.2	2.9	3.6
2010	3.6	3.3	3.7	4.1	4.0	3.6	3.7	2.7	2.7	2.7	4.6	4.4
2011	4.5	6.1	5.9	6.6	5.2	5.4	4.4	3.2	3.4	4.2	3.7	3.6
2012	3.7	3.9	4.0	4.0	4.0	3.5	3.8	2.2	2.7	3.2	3.5	3.4
2013	3.5	3.8	4.1	4.6	4.4	4.4	3.4	3.2	3.5	2.6	3.9	3.2
2014	4.1	4.2	4.8	5.9	3.7	3.7	3.5	2.9	3.4	2.5	2.8	2.7
2015	3.2	4.4	4.5	4.3	4.2	3.8	4.1	2.7	4.3	4.2	2.8	3.0
2016	3.4	4.6	3.9	4.7	3.4	3.7	3.6	3.1	3.3	3.2	2.4	2.9
2017	3.3	3.6	4.5	4.4	3.9	3.2	3.6	3.4	3.7	3.2	2.7	3.2
2018	3.2	4.5	4.6	5.2	3.5	3.0	3.0	3.4	3.3	2.9	3.7	3.0
2019	3.1	3.6	3.8	4.5	3.6	3.1	3.2	2.5	3.5	3.2	3.5	4.0
2020	4.1	4.4	4.3	4.6	3.7	3.8	2.4	2.1	3.6	2.8	3.1	2.7
2021	2.9	3.7	4.9	3.9	4.1	3.8	2.9	2.2	2.1	2.5	3.4	3.4
2022	4.5	4.4	5.3	4.7	5.1	3.6	4.1	2.6	3.9	3.2	4.3	3.5
2023	3.4	4.0	3.3	2.2	3.0	1.6	3.0	3.1	3.0	2.7	3.6	3.5
2024	4.8	4.7	4.7	4.8	3.3	3.9	3.5	3.8	4.9	3.0	3.3	4.3
2025	3.6	4.5	5.6	4.7	3.9	3.7	3.5	3.3	3.8	5.4	3.4	3.5
2026	3.8	4.7	4.7	4.3	3.7	4.3	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
2008	M	M	M	M	M	M	M	M	M	M	M	65.22
2009	54.82	59.06	65.27	74.48	81.53	88.76	89.14	88.91	82.22	73.40	65.72	56.04
2010	51.51	52.44	65.21	78.38	83.62	92.12	91.23	90.30	87.56	77.52	66.98	48.55
2011	50.58	62.99	67.94	77.54	81.99	92.30	93.20	90.24	84.26	73.23	69.68	63.88
2012	61.96	63.41	74.56	75.56	82.17	84.62	92.68	86.06	83.18	73.69	62.18	62.89
2013	62.83	57.26	60.51	73.22	78.57	85.88	86.99	86.29	83.84	74.91	64.46	62.89
2014	53.66	59.00	61.67	76.50	82.69	89.00	87.28	87.68	81.26	77.23	62.12	60.05
2015	56.04	52.38	67.25	74.42	81.70	90.68	92.62	87.57	83.72	73.75	68.18	68.99
2016	52.03	57.32	71.31	72.74	78.74	87.38	91.86	89.66	84.26	76.76	66.26	58.77
2017	61.61	67.68	66.95	77.30	81.35	84.50	88.61	86.70	83.12	76.30	65.90	56.15
2018	52.15	68.26	62.19	71.60	81.99	88.70	87.51	88.32	86.30	76.13	62.84	58.07
2019	55.98	64.91	64.52	74.24	85.59	86.12	90.06	88.32	86.30	78.28	61.88	61.44
2020	60.86	61.30	70.26	73.76	78.05	83.48	90.01	87.45	80.90	77.81	70.58	57.26
2021	55.46	57.84	68.17	74.78	81.44	85.34	87.74	87.34	83.72	76.65	64.10	66.55
2022	54.35	64.46	70.26	74.36	83.21	87.74	89.31	86.46	83.18	72.01	67.82	57.78
2023	62.37	66.33	68.46	75.32	77.29	84.26	89.72	88.90	82.16	74.62	64.94	61.09
2024	58.58	61.92	70.21	75.08	81.88	87.92	89.00	86.46	82.28	76.07	69.08	60.09
2025	51.49	62.73	69.16	77.60	81.41	88.04	90.06	84.32	82.58	71.60	68.54	56.96
2026	55.40	57.14	73.92	78.38	80.08	87.44	M	M	M	M	M	M
NCEI Climatology	58.09	60.71	68.00	75.80	82.59	87.70	90.80	89.09	84.80	76.90	68.20	60.60

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	M	M	M	M	M	M	M	M	M	M	M	45.13
2009	35.48	34.38	43.09	49.82	61.26	68.30	68.35	71.43	65.21	53.95	45.62	37.75
2010	31.07	32.26	40.54	49.10	61.73	71.00	70.73	71.66	64.82	51.63	40.46	28.34
2011	30.55	39.01	42.68	52.46	59.70	68.84	70.90	70.21	64.64	48.20	41.96	37.98
2012	35.66	37.90	50.64	50.24	61.38	62.66	72.47	70.15	62.78	53.19	37.34	40.88
2013	39.14	36.24	37.98	50.54	57.08	68.66	71.14	69.16	62.24	53.48	40.64	39.95
2014	31.01	36.82	38.85	51.55	60.16	67.04	69.34	69.10	66.68	52.03	38.00	38.56
2015	35.02	30.65	44.60	53.12	58.83	69.68	71.19	68.93	66.92	53.25	47.60	49.19
2016	32.93	37.52	46.69	48.86	58.25	67.94	71.83	70.40	67.04	54.20	39.68	37.69
2017	40.30	40.87	39.90	53.54	58.94	65.72	70.09	70.38	64.40	55.52	40.94	37.86
2018	28.92	45.56	38.68	45.62	61.44	69.44	69.10	70.50	69.02	55.23	43.82	39.90
2019	35.72	41.13	6.92	41.66	61.73	66.02	69.39	70.26	66.02	57.32	38.66	40.54
2020	40.77	41.00	49.77	48.62	57.08	66.74	70.96	71.08	65.00	57.55	47.60	35.08
2021	36.76	37.66	44.89	47.54	55.10	67.58	69.22	70.55	62.60	55.34	36.14	42.51
2022	31.13	39.33	44.37	47.90	62.19	65.54	72.53	69.57	63.20	49.07	46.76	35.66
2023	38.50	43.96	44.31	50.66	55.69	62.90	71.08	70.44	61.94	50.23	40.76	38.50
2024	35.90	37.71	46.81	51.32	61.15	65.24	71.13	69.22	65.36	50.00	46.76	38.24
2025	27.97	39.01	45.44	52.16	60.80	69.32	72.65	68.64	62.18	51.92	40.04	34.88
2026	31.36	35.54	45.76	49.70	57.20	65.77	M	M	M	M	M	M
NCEI Climatology	35.19	38.18	43.60	51.90	60.60	68.70	72.39	71.21	66.00	54.81	44.10	38.61

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	M	M	M	M	M	M	M	M	M	M	M	55.17
2009	45.15	46.72	54.18	62.15	71.40	78.53	78.74	80.17	73.71	63.67	55.67	46.89
2010	41.29	42.35	52.87	63.74	72.67	81.56	80.98	80.98	76.19	64.57	53.72	38.45
2011	40.56	51.00	55.31	65.00	70.85	80.57	82.05	80.22	74.45	60.71	55.82	50.93
2012	48.81	50.65	62.60	62.90	71.77	73.64	82.57	78.10	72.98	63.44	49.76	51.89
2013	50.99	46.75	49.25	61.88	67.83	77.27	79.06	77.73	73.04	64.20	52.55	51.42
2014	42.34	47.91	50.26	64.03	71.43	78.02	78.31	78.39	73.97	64.63	50.06	49.30
2015	45.53	41.51	55.92	63.77	70.26	80.18	81.91	78.25	75.32	63.50	57.89	59.09
2016	42.48	47.42	59.00	60.80	68.49	77.66	81.85	80.03	75.65	65.48	52.97	48.23
2017	50.96	54.28	53.43	65.42	70.15	75.11	79.35	78.54	73.76	65.91	53.42	47.01
2018	40.54	56.91	50.44	58.61	71.72	79.07	78.31	79.41	77.66	65.68	53.33	48.98
2019	45.85	53.02	35.72	57.95	73.66	76.07	79.73	79.29	76.16	67.80	50.27	50.99
2020	50.81	51.15	60.02	61.19	67.56	75.11	80.48	79.26	72.95	67.68	59.09	46.17
2021	46.11	47.75	56.53	61.16	68.27	76.46	78.48	78.95	73.16	66.00	50.12	54.53
2022	42.74	51.90	57.32	61.13	72.70	76.64	80.92	78.02	73.19	60.54	57.29	46.72
2023	50.44	55.14	56.39	62.99	66.49	73.58	80.40	79.67	72.05	62.43	52.85	49.80
2024	47.24	49.81	58.51	63.20	71.51	76.58	80.07	77.84	73.82	63.04	57.92	49.16
2025	39.73	50.87	57.30	64.88	71.11	78.68	81.35	76.48	72.38	61.76	54.29	45.92
2026	43.38	46.34	59.84	64.04	68.64	76.60	M	M	M	M	M	M
NCEI Climatology	46.64	49.45	55.80	63.85	71.60	78.20	81.60	80.15	75.40	65.86	56.15	49.60

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
2008	M	M	M	M	M	M	M	M	M	M	M	79.8%
2009	70.8%	61.4%	69.2%	65.3%	73.1%	74.0%	73.2%	76.2%	72.8%	80.5%	82.0%	76.8%
2010	76.3%	84.4%	81.7%	80.8%	87.7%	87.3%	88.9%	91.8%	87.6%	87.5%	87.8%	77.8%
2011	81.0%	74.6%	74.6%	76.1%	79.1%	74.8%	77.7%	82.2%	84.6%	79.1%	79.9%	79.4%
2012	75.2%	75.1%	77.8%	75.5%	81.9%	79.2%	79.2%	88.9%	83.4%	82.5%	80.9%	84.7%
2013	79.3%	80.3%	67.4%	80.8%	79.4%	85.8%	88.1%	86.9%	81.9%	86.4%	79.0%	86.3%
2014	72.1%	81.2%	77.4%	74.3%	76.8%	79.3%	84.3%	85.3%	90.2%	83.2%	83.0%	87.0%
2015	76.4%	71.7%	76.7%	79.9%	78.8%	79.7%	78.4%	85.2%	86.0%	83.6%	85.0%	86.6%
2016	77.5%	73.6%	75.9%	70.3%	78.5%	78.7%	80.0%	80.3%	86.9%	80.9%	79.6%	80.9%
2017	77.9%	71.2%	67.6%	77.8%	76.1%	82.4%	81.8%	86.0%	83.5%	84.6%	83.8%	81.5%
2018	73.6%	84.4%	70.8%	73.6%	85.4%	83.7%	87.7%	86.8%	90.2%	85.9%	87.0%	89.9%
2019	80.3%	80.0%	73.8%	74.1%	74.3%	79.4%	79.9%	83.5%	82.4%	83.1%	81.0%	79.5%
2020	75.7%	77.3%	76.7%	72.0%	77.5%	82.3%	81.9%	86.2%	84.4%	83.6%	82.7%	80.6%
2021	81.3%	81.6%	72.1%	66.2%	69.8%	81.3%	82.5%	85.5%	81.3%	80.9%	73.5%	80.6%
2022	75.4%	73.3%	70.4%	69.4%	73.6%	74.1%	82.2%	83.3%	79.0%	79.4%	79.0%	77.6%
2023	77.0%	78.7%	70.2%	72.7%	73.2%	77.4%	81.6%	81.6%	81.6%	80.3%	78.0%	79.7%
2024	75.4%	70.0%	71.5%	70.4%	79.6%	75.2%	81.6%	83.6%	83.3%	78.5%	81.9%	76.1%
2025	68.8%	75.6%	67.2%	74.9%	78.5%	82.5%	85.6%	86.1%	81.8%	80.0%	75.6%	78.4%
2026	72.9%	73.2%	73.1%	71.4%	78.5%	74.8%	M	M	M	M	M	M