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 (USC00156136) 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
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	0.00	0.00	M	M	M	M	M
2017	M	M	M	M	M	M	0.00	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	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	0.20	2.55	3.39	6.05	1.86	3.88	4.34	0.09	0.25	M
NCEI Climatology	3.35	3.34	4.41	3.82	4.43	4.79	5.18	3.63	3.35	3.19	3.00	3.83

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	M	M	M	M	M	M	M	M	2.8	3.1	4.9	5.3
2014	5.9	5.3	6.1	6.3	4.1	3.3	3.2	2.8	2.8	4.6	5.4	4.4
2015	5.0	5.4	5.4	5.6	3.4	3.7	2.8	2.1	2.7	4.0	4.8	4.7
2016	5.4	5.9	5.3	5.6	3.1	3.2	2.3	2.1	2.5	3.8	3.7	5.0
2017	5.8	5.4	6.0	5.6	4.9	3.1	2.7	2.0	2.7	3.3	4.5	4.9
2018	5.1	5.3	5.7	5.4	3.7	2.6	2.4	2.3	2.3	3.5	4.7	4.6
2019	5.3	5.6	5.0	4.9	3.9	3.9	2.1	2.7	3.0	3.7	3.8	4.5
2020	4.9	5.3	5.4	5.0	4.3	3.2	2.2	2.1	2.7	2.5	4.3	4.6
2021	4.2	3.6	5.2	4.4	3.1	3.0	2.6	1.8	2.5	2.8	3.5	4.8
2022	4.3	5.5	6.3	5.2	3.9	2.9	2.7	2.3	2.5	3.4	4.2	4.4
2023	4.9	5.5	5.2	4.7	3.4	3.2	2.8	2.5	1.5	2.9	3.9	4.1
2024	5.1	5.1	5.5	5.5	3.1	2.9	2.4	1.9	3.4	2.5	4.8	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
2013	M	M	M	M	M	M	M	M	74.96	66.98	54.22	48.49
2014	39.24	44.50	54.04	72.28	78.01	83.21	81.38	81.71	77.10	65.40	51.12	47.29
2015	41.98	36.94	57.16	68.31	79.57	83.26	83.65	82.67	79.41	67.37	61.89	58.90
2016	41.75	47.18	64.36	70.17	72.43	83.58	86.22	87.44	84.00	74.16	61.39	47.12
2017	49.09	57.54	58.05	73.57	73.80	81.64	85.25	81.75	77.28	70.51	58.15	45.02
2018	42.65	56.30	52.54	64.66	83.04	84.12	86.53	84.55	81.26	68.15	51.24	48.29
2019	40.80	52.28	54.46	71.63	78.51	79.89	85.97	86.32	88.89	73.55	52.83	51.81
2020	49.44	49.75	62.07	64.38	72.25	80.72	87.74	84.34	76.87	68.46	62.57	46.83
2021	42.93	41.41	62.65	67.14	73.75	83.15	84.82	85.60	78.99	71.33	55.62	58.88
2022	41.20	52.23	61.73	67.13	77.76	84.69	85.03	84.02	77.14	65.99	58.45	48.22
2023	50.90	56.82	58.46	70.64	73.87	79.16	85.61	82.29	78.91	69.80	59.38	53.22
2024	42.48	56.19	62.98	70.83	77.95	85.51	87.20	86.16	81.08	72.53	69.91	M
NCEI Climatology	44.10	48.83	58.09	69.61	76.21	83.40	86.20	85.70	79.80	69.80	58.40	48.00

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	M	M	M	M	M	M	M	M	56.02	49.44	34.62	33.41
2014	18.29	26.85	31.80	48.56	54.93	64.02	63.44	64.56	58.36	48.81	33.63	33.47
2015	26.18	18.61	36.53	47.82	58.54	65.01	66.91	62.96	59.92	48.17	43.75	42.82
2016	25.28	31.94	44.27	46.75	53.72	64.29	68.41	69.15	61.08	53.22	40.98	32.53
2017	36.22	38.27	37.89	53.10	56.33	61.52	67.12	62.75	57.21	49.46	39.03	28.77
2018	24.00	38.05	34.84	41.06	62.70	65.06	65.93	66.74	64.84	49.83	35.15	35.34
2019	33.64	41.79	35.66	49.08	59.99	62.60	67.23	64.76	63.53	50.04	32.66	35.15
2020	34.47	33.75	44.05	42.66	52.42	62.63	69.42	65.90	58.37	49.43	41.16	30.75
2021	30.51	28.79	40.20	46.18	51.73	63.97	65.75	67.75	59.50	53.56	34.82	40.16
2022	24.20	31.45	38.82	46.21	57.30	62.36	68.34	65.45	57.37	44.32	38.99	31.87
2023	36.07	37.44	37.42	46.16	52.47	58.99	67.17	65.15	58.97	49.62	38.67	36.48
2024	28.63	35.68	42.26	50.17	58.38	63.82	66.67	63.66	59.65	47.31	49.67	M
NCEI Climatology	22.90	25.71	31.70	40.69	51.41	60.11	64.59	63.41	55.90	43.10	31.99	27.50

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	M	M	M	M	M	M	M	M	65.49	58.21	44.42	40.95
2014	28.76	35.68	42.92	60.42	66.47	73.61	72.41	73.14	67.73	57.11	42.37	40.38
2015	34.08	27.78	46.84	58.06	69.05	74.13	75.28	72.81	69.67	57.77	52.82	50.86
2016	33.52	39.56	54.31	58.46	63.07	73.93	77.32	78.30	72.54	63.69	51.19	39.82
2017	42.66	47.91	47.97	63.33	65.07	71.58	76.18	72.25	67.24	59.98	48.59	36.89
2018	33.32	47.18	43.69	52.86	72.87	74.59	76.23	75.65	73.05	58.99	43.20	41.82
2019	37.22	47.03	45.06	60.36	69.25	71.24	76.60	75.54	76.21	61.79	42.75	43.48
2020	41.95	41.75	53.06	53.52	62.33	71.68	78.58	75.12	67.62	58.95	51.86	38.79
2021	36.72	35.10	51.42	56.66	62.74	73.56	75.28	76.67	69.24	62.45	45.22	49.52
2022	32.70	41.84	50.27	56.67	67.53	73.53	76.68	74.74	67.25	55.15	48.72	40.05
2023	43.48	47.13	47.94	58.40	63.17	69.08	76.39	73.72	68.94	59.71	49.02	44.85
2024	35.55	45.93	52.62	60.50	68.17	74.67	76.94	74.91	70.37	59.92	59.79	M
NCEI Climatology	33.50	37.27	44.90	55.15	63.81	71.75	75.40	74.55	67.85	56.45	45.20	37.75

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
2013	M	M	M	M	M	M	M	M	84.8%	80.6%	64.0%	70.7%
2014	62.9%	68.4%	59.8%	54.1%	68.1%	78.5%	75.9%	84.2%	84.6%	78.4%	64.3%	79.3%
2015	69.8%	65.3%	64.9%	63.2%	67.5%	78.3%	84.4%	80.4%	80.7%	74.4%	64.2%	77.1%
2016	67.0%	69.6%	60.5%	53.6%	77.4%	73.8%	82.8%	82.3%	75.3%	71.4%	63.8%	71.9%
2017	79.3%	59.6%	60.2%	63.4%	74.9%	74.3%	80.8%	84.9%	83.4%	75.9%	69.2%	67.4%
2018	67.5%	78.3%	69.6%	62.1%	74.9%	80.2%	80.7%	85.2%	89.5%	81.6%	79.5%	78.9%
2019	75.8%	72.1%	58.9%	61.5%	75.2%	79.5%	83.6%	76.4%	64.4%	73.5%	69.8%	76.3%
2020	72.4%	72.3%	69.6%	66.0%	73.8%	78.5%	80.9%	85.7%	86.8%	81.1%	63.0%	75.5%
2021	77.6%	82.6%	55.3%	58.0%	68.3%	76.1%	82.0%	85.4%	82.4%	83.0%	62.3%	69.3%
2022	72.1%	63.8%	54.7%	59.6%	74.3%	72.2%	86.3%	85.0%	81.1%	68.3%	66.5%	72.4%
2023	74.3%	63.3%	59.2%	54.5%	73.5%	76.9%	81.2%	83.2%	83.8%	73.1%	61.4%	68.6%
2024	75.5%	61.7%	59.1%	61.2%	77.6%	71.4%	75.8%	73.0%	72.3%	69.8%	66.0%	M