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 (USC00447925) 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
2014	M	M	M	M	M	M	M	0.37	3.66	1.92	2.68	2.74
2015	1.40	1.90	2.90	2.94	0.95	5.38	3.83	1.13	6.16	3.20	4.47	5.96
2016	1.60	3.95	1.62	1.65	5.45	5.52	2.42	1.77	3.20	3.96	0.71	1.42
2017	3.89	0.82	2.14	5.78	0.28	0.10	0.87	4.47	1.78	2.36	1.20	0.63
2018	1.69	0.99	M	M	M	1.62	3.38	4.95	5.56	4.84	7.39	3.54
2019	3.16	4.47	2.62	3.01	2.20	5.80	3.15	1.99	0.25	5.15	1.71	2.50
2020	3.06	3.88	1.95	3.20	4.32	11.43	1.69	4.85	4.97	2.54	4.77	5.02
2021	3.48	4.66	4.14	1.69	1.27	1.77	5.22	2.92	3.01	1.46	0.21	1.00
2022	4.33	2.39	4.53	1.50	6.04	1.89	3.94	4.24	3.43	0.83	0.69	4.18
2023	3.38	2.17	1.76	3.97	2.59	4.75	3.36	2.28	3.77	1.05	1.42	4.67
2024	5.23	1.57	4.90	0.59	8.10	0.53	7.31	4.86	9.50	0.21	1.57	1.22
NCEI Climatology	3.56	3.06	4.03	3.67	4.35	4.88	4.01	3.82	4.69	3.43	3.40	3.58

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	M	2.4	2.8	3.7	4.3	3.5
2015	4.4	5.6	4.5	5.0	3.6	2.1	1.4	2.2	3.2	3.9	2.8	2.9
2016	4.6	5.6	5.4	5.7	3.1	3.2	2.5	2.4	3.1	3.4	3.0	4.0
2017	4.3	4.7	5.8	5.3	4.3	3.3	2.9	2.5	2.9	2.9	2.9	3.3
2018	4.4	4.3	5.9	5.9	3.3	2.4	2.2	2.2	2.9	2.7	3.8	3.0
2019	4.4	3.8	4.9	4.4	3.5	3.4	2.2	2.2	2.7	2.9	3.2	3.1
2020	3.9	4.3	5.0	5.7	4.7	3.3	2.5	0.8	2.3	2.3	2.7	3.8
2021	3.5	4.2	4.1	4.9	2.8	2.3	2.3	1.8	2.4	3.1	3.4	2.1
2022	4.2	4.7	5.7	5.4	3.9	2.8	3.0	2.0	2.6	2.8	3.7	3.1
2023	4.1	5.4	5.4	3.9	4.0	3.1	2.3	2.7	2.5	2.5	2.7	2.9
2024	4.6	4.1	4.6	5.4	2.8	3.1	2.8	2.0	2.7	2.3	3.6	5.0
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
2014	M	M	M	M	M	M	M	84.16	78.15	72.12	56.43	51.75
2015	47.27	43.21	59.61	71.53	81.45	86.19	87.37	86.34	81.95	69.22	63.81	61.78
2016	45.97	51.66	67.67	71.17	75.06	84.80	89.67	90.31	85.54	73.77	64.71	52.37
2017	52.18	63.09	62.78	75.20	77.27	84.48	90.52	85.57	80.30	75.05	61.07	49.62
2018	47.27	58.71	54.98	68.93	83.50	85.67	87.40	87.24	82.56	70.78	55.32	51.61
2019	48.35	54.72	58.43	72.85	83.33	84.17	90.68	88.77	88.89	75.68	56.32	54.94
2020	52.61	54.55	66.43	69.56	73.87	83.46	92.84	89.48	77.32	72.68	65.24	51.60
2021	48.13	48.42	63.56	72.05	77.50	86.05	88.27	89.33	83.37	75.65	60.35	60.78
2022	46.97	57.50	65.62	72.02	78.27	87.05	89.20	86.55	80.83	69.36	64.37	49.42
2023	55.08	61.74	62.36	73.14	74.69	81.72	89.85	87.37	81.13	73.67	62.83	56.83
2024	51.01	57.51	66.22	73.44	79.90	89.05	89.81	86.28	79.83	73.50	65.38	52.07
NCEI Climatology	50.70	54.11	61.90	71.80	78.70	86.20	90.01	88.30	82.60	72.81	62.61	53.79

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	M	64.98	60.96	47.28	32.20	33.07
2015	26.16	21.18	36.47	46.99	56.82	65.27	67.54	63.89	60.16	45.43	41.50	41.37
2016	25.75	31.22	43.85	45.28	54.56	62.21	68.29	69.27	64.77	49.23	35.01	30.91
2017	32.80	35.60	37.71	52.33	55.60	61.93	68.30	64.59	58.14	48.25	33.83	29.40
2018	21.87	37.74	32.61	42.43	61.35	65.17	66.09	66.77	66.56	50.33	36.63	32.32
2019	32.97	41.61	35.70	48.49	59.47	62.30	67.66	65.62	62.49	50.55	32.84	32.26
2020	32.39	34.76	44.87	43.50	52.26	63.80	69.02	69.87	57.70	48.96	39.15	29.97
2021	28.02	30.98	38.52	43.30	50.35	62.67	66.98	67.25	57.23	52.19	30.49	36.49
2022	24.75	29.91	39.41	45.22	56.31	61.83	68.56	65.50	57.01	42.66	38.14	27.90
2023	33.84	37.82	38.48	45.15	51.62	57.41	67.92	64.96	58.62	45.83	31.74	30.79
2024	29.14	32.00	40.51	48.09	56.47	63.18	68.73	65.08	60.85	45.61	39.55	29.89
NCEI Climatology	26.49	28.28	34.20	43.30	53.40	62.50	67.40	65.90	59.00	45.70	34.70	29.30

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	M	74.57	69.55	59.70	44.31	42.41
2015	36.71	32.20	48.04	59.26	69.14	75.73	77.45	75.11	71.06	57.32	52.65	51.57
2016	35.86	41.44	55.76	58.23	64.81	73.51	78.98	79.79	75.16	61.50	49.86	41.64
2017	42.49	49.35	50.25	63.77	66.43	73.21	79.41	75.08	69.22	61.65	47.45	39.51
2018	34.57	48.23	43.80	55.68	72.42	75.42	76.75	77.01	74.56	60.55	45.98	41.96
2019	40.66	48.17	47.06	60.67	71.40	73.23	79.17	77.20	75.69	63.11	44.58	43.60
2020	42.50	44.66	55.65	56.53	63.07	73.63	80.93	79.67	67.51	60.82	52.19	40.79
2021	38.08	39.70	51.04	57.67	63.92	74.36	77.63	78.29	70.30	63.92	45.42	48.64
2022	35.86	43.70	52.52	58.62	67.29	74.44	78.88	76.02	68.92	56.01	51.26	38.66
2023	44.46	49.78	50.42	59.15	63.16	69.56	78.89	76.17	69.87	59.75	47.29	43.81
2024	40.07	44.75	53.36	60.76	68.19	76.12	79.27	75.68	70.34	59.55	52.46	40.98
NCEI Climatology	38.60	41.19	48.05	57.55	66.05	74.35	78.70	77.10	70.80	59.25	48.65	41.55

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
2014	M	M	M	M	M	M	M	79.2%	81.4%	74.5%	64.3%	73.3%
2015	63.0%	54.5%	61.6%	63.3%	69.6%	79.5%	76.0%	76.4%	79.7%	78.9%	76.0%	82.9%
2016	65.2%	63.5%	60.9%	57.5%	80.8%	76.6%	80.4%	79.3%	77.8%	77.4%	69.0%	66.6%
2017	70.0%	54.1%	53.3%	68.4%	75.2%	76.0%	75.3%	77.4%	78.3%	75.6%	72.5%	63.9%
2018	59.6%	74.0%	59.5%	58.2%	75.3%	78.7%	78.5%	81.5%	87.4%	80.4%	75.4%	77.7%
2019	67.2%	67.6%	58.5%	67.3%	71.8%	75.0%	74.1%	76.1%	69.3%	73.2%	68.7%	69.3%
2020	67.4%	67.7%	61.8%	60.5%	69.8%	74.6%	72.5%	81.0%	78.0%	80.9%	72.7%	69.6%
2021	70.0%	69.1%	57.3%	58.3%	66.9%	71.7%	74.1%	77.5%	73.6%	75.4%	59.8%	66.3%
2022	60.7%	64.1%	58.0%	53.9%	75.4%	70.1%	77.2%	79.0%	76.0%	73.2%	66.0%	70.5%
2023	70.5%	60.4%	57.0%	64.7%	68.6%	73.7%	75.7%	73.8%	76.8%	73.7%	62.6%	71.6%
2024	65.7%	61.0%	59.7%	61.2%	74.7%	65.4%	73.9%	78.7%	80.3%	73.6%	69.3%	63.4%