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 () within the current 1991-2020 dataset.

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Precipitation Totals [inch]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
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	M	M	M	M	M	M	M	M	M	M
2025	M	M	M	M	M	M	M	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2018	M	3.6	3.2	6.3	M	16.4	13.4	8.8	4.2	3.4	6.9	M
2019	M	M	2.7	4.1	7.7	9.3	10.1	9.0	4.6	4.9	4.1	4.0
2020	4.5	3.7	3.6	4.5	7.1	9.3	9.0	9.1	9.7	6.9	5.3	4.7
2021	4.5	3.4	3.4	4.0	7.8	13.0	16.4	13.3	11.8	8.1	8.3	6.4
2022	7.7	6.4	5.9	6.3	10.3	11.6	15.1	13.6	11.8	6.6	5.1	8.6
2023	9.2	5.7	6.7	6.0	6.8	12.4	16.4	11.7	11.1	5.2	6.0	7.5
2024	7.1	7.6	6.6	6.2	11.0	13.9	16.2	14.3	13.1	7.7	7.9	9.1
2025	7.8	6.7	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
2018	M	87.42	89.24	88.44	80.60	88.47	86.63	85.60	86.66	87.63	87.44	M
2019	M	M	89.78	90.92	91.17	88.67	86.31	84.45	85.80	86.90	86.90	86.31
2020	86.35	86.93	87.68	92.24	91.98	88.58	85.25	86.12	85.46	87.43	87.74	86.87
2021	86.06	86.39	88.52	90.38	88.96	88.54	86.75	85.77	86.30	85.77	86.36	87.05
2022	86.93	86.77	88.32	88.94	89.08	86.19	85.22	85.19	85.88	87.80	87.92	86.46
2023	84.95	85.61	88.85	90.72	90.98	87.35	86.66	87.74	85.82	87.86	87.50	87.18
2024	85.71	87.43	88.15	90.73	89.19	87.02	85.71	84.43	86.12	87.05	88.64	85.83
2025	86.06	86.90	M	M	M	M	M	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2018	M	81.45	82.76	84.59	80.60	82.62	82.76	82.33	83.25	80.95	81.32	M
2019	M	M	83.84	85.28	85.83	83.33	83.21	80.68	81.60	81.28	81.56	80.60
2020	81.41	81.59	82.98	86.00	85.88	83.06	81.18	82.28	81.50	82.28	83.14	82.75
2021	81.18	80.92	83.54	84.44	83.97	83.39	82.69	81.41	81.92	82.11	81.74	81.65
2022	80.89	81.05	83.62	84.80	83.91	80.91	80.48	81.35	81.02	81.76	82.40	81.59
2023	80.95	80.92	83.04	85.44	86.21	85.10	82.88	83.50	81.50	82.81	83.00	82.96
2024	81.99	83.58	83.62	85.87	84.08	82.28	80.83	79.90	81.08	81.06	82.34	80.60
2025	80.83	80.93	M	M	M	M	M	M	M	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2018	M	84.44	86.00	86.51	80.60	85.55	84.70	83.97	84.96	84.29	84.38	M
2019	M	M	86.81	88.10	88.50	86.00	84.76	82.56	83.70	84.09	84.23	83.46
2020	83.88	84.26	85.33	89.12	88.93	85.82	83.21	84.20	83.48	84.85	85.44	84.81
2021	83.62	83.65	86.03	87.41	86.46	85.97	84.72	83.59	84.11	83.94	84.05	84.35
2022	83.91	83.91	85.97	86.87	86.49	83.55	82.85	83.27	83.45	84.78	85.16	84.03
2023	82.95	83.27	85.94	88.08	88.60	86.23	84.77	85.62	83.66	85.33	85.25	85.07
2024	83.85	85.50	85.88	88.30	86.64	84.65	83.27	82.17	83.60	84.05	85.49	83.21
2025	83.45	83.91	M	M	M	M	M	M	M	M	M	M

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
2018	M	75.1%	74.4%	75.9%	M	80.7%	78.5%	80.2%	72.1%	80.3%	76.7%	M
2019	M	M	74.7%	70.9%	69.4%	78.8%	79.6%	83.8%	79.7%	79.2%	79.4%	78.0%
2020	73.1%	72.8%	71.8%	69.7%	72.0%	78.9%	83.0%	78.8%	82.1%	77.1%	77.6%	75.9%
2021	77.0%	73.3%	73.3%	71.6%	78.0%	79.2%	83.1%	83.3%	82.1%	82.9%	80.9%	76.1%
2022	70.9%	70.5%	71.8%	72.3%	75.1%	83.5%	84.7%	81.9%	80.6%	76.3%	75.1%	75.7%
2023	73.2%	76.1%	70.2%	68.0%	70.5%	79.7%	81.2%	75.7%	80.2%	75.0%	78.4%	78.8%
2024	75.1%	71.6%	71.1%	71.9%	77.4%	84.4%	86.3%	86.0%	82.1%	81.1%	72.9%	73.7%
2025	75.2%	75.1%	M	M	M	M	M	M	M	M	M	M