IEM :: Monthly Summaries

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[18H] Lucius [2023-]

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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 (USC00166394) 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
2023	M	M	M	M	M	M	M	M	0.46	2.20	6.70	2.37
2024	9.98	1.19	0.40	0.18	0.97	6.56	2.39	4.38	8.01	4.35	0.22	0.78
2025	3.44	1.06	0.29	0.32	0.03	0.70	0.87	0.65	M	M	M	M
NCEI Climatology	4.99	3.39	3.86	4.02	4.55	7.02	6.23	7.27	5.40	4.03	3.91	3.96

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2023	M	M	M	M	M	M	M	M	8.5	9.7	12.5	13.7
2024	15.1	15.0	12.3	12.4	10.6	10.6	7.9	6.4	8.5	11.0	12.8	11.5
2025	15.0	11.4	15.3	12.5	7.9	8.4	6.6	5.9	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
2023	M	M	M	M	M	M	M	M	89.27	86.29	79.52	76.59
2024	75.80	75.01	78.97	79.88	86.99	91.52	92.50	94.19	90.98	85.94	83.30	79.26
2025	74.10	80.34	79.15	81.86	84.28	91.46	93.78	94.45	M	M	M	M
NCEI Climatology	63.01	66.58	71.79	78.00	84.09	88.90	90.50	90.40	87.91	81.10	72.00	65.59

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2023	M	M	M	M	M	M	M	M	83.05	78.28	72.92	69.57
2024	66.44	67.63	71.43	73.28	79.85	81.98	83.27	84.08	82.16	78.92	76.16	72.12
2025	66.08	71.47	72.24	74.72	77.25	83.21	83.39	83.50	M	M	M	M
NCEI Climatology	45.39	48.99	54.62	61.00	68.70	74.61	76.30	76.20	73.00	63.70	53.01	47.70

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2023	M	M	M	M	M	M	M	M	86.16	82.28	76.22	73.08
2024	71.12	71.32	75.20	76.58	83.42	86.75	87.89	89.14	86.57	82.43	79.73	75.69
2025	70.09	75.91	75.69	78.29	80.76	87.33	88.58	88.97	M	M	M	M
NCEI Climatology	54.20	57.79	63.21	69.50	76.40	81.75	83.40	83.30	80.45	72.40	62.51	56.65

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
2023	M	M	M	M	M	M	M	M	65.8%	63.7%	67.2%	62.1%
2024	67.7%	65.1%	75.1%	73.8%	80.8%	72.1%	70.4%	65.6%	68.5%	63.0%	66.9%	64.0%
2025	66.6%	71.2%	65.9%	67.7%	76.0%	68.9%	65.1%	66.2%	M	M	M	M