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 (USC00402360) 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	3.43	3.62	4.41	1.85	2.55	4.06	2.23	2.66
2018	1.70	5.16	2.08	3.83	4.07	4.99	2.87	4.98	11.10	2.74	6.17	8.00
2019	5.93	10.11	4.53	5.36	3.65	3.48	2.52	1.70	0.41	6.67	4.58	5.66
2020	6.57	8.39	7.36	7.94	3.26	3.14	0.98	5.23	3.44	6.72	2.13	3.44
2021	2.30	4.56	9.21	1.78	3.40	3.43	5.40	4.05	1.02	0.03	0.27	4.70
2022	5.30	9.65	4.48	2.20	2.76	2.73	5.04	0.71	M	M	2.71	8.25
2023	3.02	3.90	4.12	3.10	3.45	4.63	5.06	4.20	0.06	0.18	1.64	7.24
2024	7.65	3.25	5.92	2.89	5.77	2.08	2.26	0.71	4.50	0.31	1.99	2.54
2025	1.54	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	5.21	5.27	5.33	5.38	4.79	4.50	5.29	3.88	4.82	3.62	4.79	6.04

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2017	M	M	M	M	3.0	2.5	2.0	2.3	2.6	2.7	2.2	3.6
2018	3.6	3.8	4.9	4.5	2.7	2.4	1.9	2.0	1.7	2.3	3.1	2.6
2019	3.5	3.8	4.3	4.1	3.1	2.7	2.4	2.1	2.3	3.0	2.8	3.6
2020	3.9	4.3	4.1	4.1	3.3	3.2	2.4	2.2	2.6	2.2	2.5	2.7
2021	3.8	3.9	3.9	3.6	3.1	2.7	2.2	1.4	1.8	2.2	2.6	3.2
2022	4.4	4.0	5.0	4.0	3.3	2.7	2.9	1.9	2.7	3.1	2.9	2.7
2023	3.7	4.2	5.1	4.0	3.2	2.9	2.3	2.4	1.7	3.1	2.6	2.8
2024	3.9	3.8	3.7	4.7	2.7	2.5	2.8	3.1	4.2	2.0	3.1	3.5
2025	3.8	M	M	M	M	M	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
2017	M	M	M	M	80.26	83.54	87.86	86.17	80.78	74.77	59.08	49.94
2018	45.30	52.64	58.46	67.18	84.20	87.02	87.92	86.70	85.46	73.28	54.14	51.10
2019	49.42	56.75	59.87	74.42	83.15	84.68	89.66	90.76	91.40	76.19	58.28	56.45
2020	53.25	53.93	65.62	69.14	76.48	85.16	91.70	88.21	80.87	73.75	65.54	50.87
2021	49.54	51.80	66.03	70.82	77.93	85.88	87.10	87.97	81.32	73.11	59.84	61.55
2022	48.03	57.59	66.66	70.82	81.82	89.00	90.50	87.22	81.86	71.60	62.72	51.39
2023	54.76	61.76	63.32	71.54	77.93	84.08	88.26	86.13	82.88	74.58	64.58	55.75
2024	45.98	60.68	66.66	72.20	80.83	88.34	90.20	91.24	79.29	75.84	65.78	52.44
2025	40.58	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	47.41	52.14	60.90	70.50	78.00	84.70	87.60	87.40	82.10	71.20	59.41	50.30

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2017	M	M	M	M	60.97	64.22	69.80	66.78	59.42	50.93	37.97	31.88
2018	23.81	35.24	38.12	44.75	62.02	67.28	69.57	68.87	68.36	54.02	36.26	35.95
2019	32.70	40.42	37.86	48.68	60.80	64.61	69.39	67.54	65.26	51.34	34.40	36.41
2020	35.77	36.50	47.50	45.38	54.70	64.91	70.28	69.74	62.15	51.80	38.78	29.21
2021	31.88	31.94	41.46	43.88	53.48	65.36	69.10	70.74	61.34	54.94	33.09	38.79
2022	28.28	30.78	39.66	45.50	59.06	65.84	71.84	67.94	58.94	41.75	38.06	32.52
2023	35.95	40.68	41.42	47.36	56.85	61.52	69.10	69.16	61.22	48.51	36.80	33.57
2024	28.10	34.79	42.57	50.54	60.68	66.02	70.52	67.51	66.53	48.55	44.84	32.58
2025	23.83	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	28.30	31.49	37.60	46.11	55.00	63.41	67.01	65.90	59.59	47.50	37.00	31.30

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	70.61	73.88	78.83	76.48	70.10	62.85	48.53	40.91
2018	34.55	43.94	48.29	55.96	73.11	77.15	78.74	77.78	76.91	63.65	45.20	43.53
2019	41.06	48.59	48.87	61.55	71.98	74.65	79.53	79.15	78.33	63.76	46.34	46.43
2020	44.51	45.21	56.56	57.26	65.59	75.04	80.99	78.97	71.51	62.77	52.16	40.04
2021	40.71	41.87	53.75	57.35	65.71	75.62	78.10	79.36	71.33	64.02	46.46	50.17
2022	38.15	44.18	53.16	58.16	70.44	77.42	81.17	77.58	70.40	56.68	50.39	41.96
2023	45.35	51.22	52.37	59.45	67.39	72.80	78.68	77.64	72.05	61.54	50.69	44.66
2024	37.04	47.73	54.62	61.37	70.76	77.18	80.36	79.37	72.91	62.19	55.31	42.51
2025	32.21	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	37.85	41.82	49.25	58.30	66.50	74.05	77.30	76.65	70.85	59.35	48.20	40.80

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	80.0%	81.6%	85.3%	83.7%	83.6%	83.9%	81.0%	79.0%
2018	75.6%	85.2%	73.3%	74.2%	83.1%	86.3%	87.2%	89.3%	91.2%	82.0%	83.4%	84.1%
2019	75.6%	78.8%	64.8%	70.5%	76.1%	76.8%	79.7%	75.8%	65.8%	75.0%	75.6%	79.2%
2020	76.3%	78.9%	77.0%	69.0%	75.5%	77.2%	76.8%	80.8%	80.1%	83.4%	76.3%	81.4%
2021	76.4%	77.4%	69.3%	67.0%	73.0%	79.4%	83.2%	85.5%	85.0%	87.9%	77.0%	83.9%
2022	74.3%	74.0%	66.1%	68.8%	77.4%	75.2%	81.5%	84.6%	79.6%	72.1%	75.2%	81.1%
2023	82.8%	75.7%	65.5%	72.7%	78.1%	79.0%	84.6%	87.2%	80.5%	75.0%	69.5%	79.3%
2024	82.5%	70.8%	70.7%	72.3%	84.5%	77.8%	80.5%	74.2%	90.1%	80.2%	81.3%	80.7%
2025	77.0%	M	M	M	M	M	M	M	M	M	M	M