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 (USC00234825) 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
2017	M	M	M	M	M	M	0.78	6.42	0.70	2.62	0.11	0.93
2018	1.02	5.20	2.65	1.36	2.77	0.02	0.04	4.24	1.87	3.36	2.05	1.81
2019	0.39	0.99	3.33	1.98	6.58	3.70	4.97	5.27	1.52	3.93	1.60	1.12
2020	3.39	1.15	3.22	0.30	2.34	4.57	2.64	1.49	1.39	3.74	3.87	1.23
2021	3.04	0.29	5.35	3.68	4.81	3.67	5.83	2.12	0.10	2.86	0.67	1.06
2022	0.96	2.93	4.15	7.45	8.27	2.39	1.73	5.73	1.34	4.49	1.71	0.56
2023	2.17	1.44	4.16	1.47	2.56	1.10	3.85	1.57	1.82	1.22	0.32	0.68
2024	1.66	0.46	2.90	3.90	3.82	4.52	2.65	2.84	0.47	0.99	3.82	1.29
2025	0.26	0.11	0.82	4.78	1.62	M	M	M	M	M	M	M
NCEI Climatology	2.71	2.71	3.50	4.88	5.89	4.68	4.09	4.36	4.07	3.35	3.21	2.52

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2017	M	M	M	M	M	6.9	5.2	5.0	5.0	6.8	7.5	6.6
2018	8.3	7.1	8.1	9.4	6.2	6.2	4.9	6.5	5.1	6.3	6.9	8.2
2019	7.5	7.6	8.0	8.5	7.0	6.0	5.4	5.0	6.2	7.5	7.6	7.9
2020	7.3	7.7	8.4	7.3	5.9	6.4	5.2	5.5	5.4	7.1	8.6	7.7
2021	7.5	7.4	9.3	8.1	6.9	5.5	4.7	5.5	5.9	7.0	7.3	8.9
2022	8.0	7.9	9.5	10.1	8.1	5.6	6.0	5.2	5.6	6.7	8.1	9.0
2023	7.9	8.5	9.4	8.8	5.8	4.5	6.0	5.9	4.9	7.3	6.7	8.5
2024	7.5	8.2	8.9	9.3	6.3	6.5	5.2	5.3	4.6	6.1	8.0	7.6
2025	6.1	7.3	10.6	9.1	6.6	5.7	4.9	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
2017	M	M	M	M	M	80.60	90.35	81.99	82.16	70.61	59.90	44.66
2018	41.64	48.59	55.92	61.28	83.45	88.94	85.23	87.28	81.02	66.90	46.83	42.50
2019	41.23	46.14	52.03	70.28	75.32	82.88	86.81	85.19	87.20	65.27	54.02	50.41
2020	43.96	46.96	59.93	65.18	76.89	85.70	89.08	85.19	78.92	65.21	60.50	48.37
2021	41.81	35.79	61.03	65.60	71.60	84.38	85.71	86.87	83.30	69.34	58.16	58.65
2022	42.63	47.30	58.19	65.42	75.20	86.42	93.20	87.51	80.30	69.22	55.22	44.37
2023	47.04	53.66	54.35	68.90	77.00	85.63	89.37	85.94	81.86	68.17	59.24	51.10
2024	35.53	M	61.59	70.10	77.99	85.46	85.36	86.41	79.64	76.71	59.96	49.59
2025	38.68	44.73	65.50	69.80	72.41	83.84	88.38	M	M	M	M	M
NCEI Climatology	42.50	47.75	57.70	67.60	75.91	83.90	88.40	87.50	80.00	69.09	56.10	45.80

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2017	M	M	M	M	M	71.60	68.64	63.18	59.54	48.78	39.14	28.28
2018	21.78	28.66	36.35	39.14	61.79	67.16	64.79	67.07	62.42	48.55	30.57	30.40
2019	26.43	27.18	33.45	47.66	56.15	62.00	67.77	67.36	66.02	45.24	33.20	31.83
2020	29.97	29.39	41.23	43.52	58.66	64.82	69.57	64.69	58.88	44.37	40.34	29.79
2021	30.08	19.34	41.17	44.72	53.02	65.60	67.48	68.35	60.74	51.45	37.28	38.39
2022	21.55	24.22	37.17	43.88	57.26	64.76	70.38	66.78	59.06	46.23	36.08	28.23
2023	31.36	33.29	35.72	44.84	56.10	62.54	68.12	67.49	59.84	48.78	38.66	35.66
2024	21.06	M	39.99	49.34	59.75	66.62	68.23	67.36	59.90	49.83	41.24	32.52
2025	21.49	26.15	41.17	48.86	54.24	66.56	70.74	M	M	M	M	M
NCEI Climatology	22.20	25.54	34.30	43.89	54.19	62.80	67.10	65.19	56.80	45.50	34.60	26.30

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2017	M	M	M	M	M	76.10	79.50	72.59	70.85	59.70	49.52	36.47
2018	31.71	38.62	46.14	50.21	72.62	78.05	75.01	77.17	71.72	57.72	38.70	36.45
2019	33.83	36.66	42.74	58.97	65.74	72.44	77.29	76.27	76.61	55.25	43.61	41.12
2020	36.96	38.18	50.58	54.35	67.78	75.26	79.32	74.94	68.90	54.79	50.42	39.08
2021	35.95	27.56	51.10	55.16	62.31	74.99	76.59	77.61	72.02	60.39	47.72	48.52
2022	32.09	35.76	47.68	54.65	66.23	75.59	81.79	77.15	69.68	57.72	45.65	36.30
2023	39.20	43.48	45.04	56.87	66.55	74.08	78.74	76.71	70.85	58.48	48.95	43.38
2024	28.30	M	50.79	59.72	68.87	76.04	76.80	76.88	69.77	63.27	50.60	41.06
2025	30.08	35.44	53.34	59.33	63.33	75.20	79.56	M	M	M	M	M
NCEI Climatology	32.35	36.65	46.00	55.75	65.05	73.35	77.75	76.35	68.40	57.30	45.35	36.05

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
2017	M	M	M	M	M	59.3%	64.7%	75.0%	66.5%	67.2%	64.0%	64.3%
2018	64.3%	73.0%	67.1%	58.7%	68.5%	70.3%	71.0%	70.6%	78.3%	74.9%	77.8%	75.6%
2019	75.3%	78.4%	66.7%	61.7%	77.2%	74.5%	76.5%	79.7%	72.2%	73.8%	67.6%	71.7%
2020	78.3%	71.9%	69.9%	64.1%	72.7%	68.0%	74.0%	70.0%	73.9%	69.7%	63.8%	67.5%
2021	78.0%	73.2%	59.9%	60.8%	71.0%	71.1%	74.7%	70.5%	63.8%	76.1%	56.7%	62.7%
2022	60.9%	61.4%	59.7%	60.8%	71.3%	62.2%	57.3%	67.1%	62.6%	52.6%	62.6%	70.8%
2023	75.1%	60.0%	64.5%	48.4%	64.3%	58.4%	63.0%	70.6%	64.9%	64.4%	57.2%	68.5%
2024	74.8%	M	65.2%	59.7%	74.0%	72.1%	75.2%	72.1%	71.6%	53.4%	72.9%	75.0%
2025	67.9%	69.7%	51.0%	66.2%	73.8%	78.6%	75.9%	M	M	M	M	M