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
2017	M	M	M	M	M	M	M	M	M	M	M	M
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
2026	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
2017	M	M	M	M	M	M	18.5	20.3	19.8	29.9	28.6	27.7
2018	26.3	25.0	28.0	22.7	21.2	19.9	18.0	19.0	27.5	28.9	28.6	26.8
2019	26.8	26.2	29.6	20.7	20.6	21.4	22.4	21.5	24.8	23.2	24.0	27.5
2020	30.7	35.2	26.7	21.1	19.7	20.2	19.9	20.9	22.3	25.4	27.7	26.5
2021	22.6	29.2	24.2	20.7	17.9	16.6	15.8	20.8	21.1	28.6	27.1	23.9
2022	30.3	35.8	21.1	21.6	20.9	20.0	21.8	17.5	24.9	27.3	29.3	25.8
2023	28.4	28.5	23.7	21.4	19.1	17.3	20.9	19.7	20.7	30.0	23.6	30.7
2024	32.3	28.5	26.5	26.7	22.6	21.3	19.9	23.3	20.9	25.6	23.9	29.6
2025	27.7	25.1	22.8	15.9	22.5	21.7	19.0	22.2	22.2	25.5	26.1	28.9
2026	32.8	31.9	25.9	22.9	20.4	19.2	20.9	19.8	25.4	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	62.60	60.95	61.90	59.42	55.57	48.98	46.11
2018	44.14	40.42	39.66	46.28	54.30	57.32	64.69	63.41	58.76	53.25	49.76	46.98
2019	44.25	46.40	46.05	47.00	50.46	56.84	60.68	63.70	58.58	53.43	47.48	46.92
2020	46.98	45.41	45.41	48.68	52.09	58.82	60.39	62.14	58.82	54.53	51.56	46.34
2021	42.97	40.94	44.19	45.08	49.30	58.52	63.06	61.67	60.80	55.57	49.88	46.05
2022	46.34	45.18	44.89	46.70	52.50	56.90	61.44	63.99	59.54	56.39	52.04	45.12
2023	45.59	46.21	44.95	45.68	50.17	59.78	60.97	61.96	62.84	54.53	47.96	45.70
2024	42.80	45.16	44.60	47.18	55.05	56.66	60.80	62.25	58.70	54.30	49.64	48.61
2025	44.48	42.54	46.81	50.00	52.96	59.36	63.88	61.85	60.68	55.17	49.76	48.20
2026	40.71	40.68	45.41	47.36	52.50	60.02	60.92	62.89	61.37	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2017	M	M	M	M	M	60.80	56.60	57.61	55.22	51.28	43.40	41.52
2018	40.07	35.66	35.43	41.36	48.26	52.10	59.17	58.48	54.02	48.26	45.92	43.26
2019	39.49	42.03	41.17	42.86	45.01	52.40	55.69	59.17	54.26	49.71	44.18	43.61
2020	43.21	40.69	40.71	42.80	46.57	53.90	54.47	57.37	54.26	50.23	47.12	43.32
2021	37.92	36.44	39.95	39.38	44.19	52.76	57.84	57.49	56.96	51.28	45.86	41.52
2022	41.52	39.91	40.59	41.42	47.62	53.12	56.10	59.00	55.34	52.73	47.72	40.07
2023	41.23	41.90	38.04	41.90	44.83	54.26	55.98	57.37	57.32	49.54	43.22	40.77
2024	38.21	41.12	40.94	42.56	50.35	52.16	55.69	58.54	53.90	51.22	44.96	43.67
2025	39.49	39.20	41.87	45.02	48.03	54.38	58.88	57.78	56.30	51.22	45.68	45.18
2026	36.76	36.44	40.77	42.62	46.63	54.86	56.33	57.49	55.12	M	M	M

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	61.70	58.77	59.75	57.32	53.43	46.19	43.82
2018	42.10	38.04	37.55	43.82	51.28	54.71	61.93	60.95	56.39	50.75	47.84	45.12
2019	41.87	44.21	43.61	44.93	47.74	54.62	58.19	61.44	56.42	51.57	45.83	45.27
2020	45.09	43.05	43.06	45.74	49.33	56.36	57.43	59.75	56.54	52.38	49.34	44.83
2021	40.45	38.69	42.07	42.23	46.75	55.64	60.45	59.58	58.88	53.43	47.87	43.79
2022	43.93	42.54	42.74	44.06	50.06	55.01	58.77	61.50	57.44	54.56	49.88	42.60
2023	43.41	44.05	41.49	43.79	47.50	57.02	58.48	59.67	60.08	52.03	45.59	43.24
2024	40.51	43.14	42.77	44.87	52.70	54.41	58.25	60.39	56.30	52.76	47.30	46.14
2025	41.99	40.87	44.34	47.51	50.49	56.87	61.38	59.81	58.49	53.19	47.72	46.69
2026	38.74	38.56	43.09	44.99	49.56	57.44	58.62	60.19	58.24	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
2017	M	M	M	M	M	M	86.0%	79.7%	80.8%	83.1%	74.0%	78.6%
2018	77.1%	75.6%	79.2%	85.3%	85.2%	84.7%	82.7%	78.7%	75.6%	80.0%	82.8%	81.3%
2019	78.5%	84.0%	81.1%	77.9%	80.5%	88.2%	86.3%	82.5%	79.2%	77.0%	78.7%	82.6%
2020	83.3%	78.2%	75.1%	76.2%	81.0%	81.6%	80.6%	84.5%	81.8%	79.9%	84.2%	78.6%
2021	71.4%	76.8%	84.0%	73.0%	85.3%	83.8%	85.0%	78.0%	81.5%	80.8%	80.5%	80.6%
2022	81.4%	76.6%	80.4%	77.4%	83.4%	85.6%	78.7%	80.1%	76.4%	81.7%	81.5%	73.5%
2023	77.8%	80.0%	79.0%	77.7%	85.5%	82.2%	80.7%	80.7%	81.8%	76.7%	79.2%	77.1%
2024	77.1%	83.1%	85.4%	82.6%	86.0%	79.5%	83.4%	79.5%	81.0%	81.0%	77.4%	83.7%
2025	79.3%	78.4%	79.0%	81.9%	80.6%	81.8%	83.0%	81.5%	77.2%	82.5%	78.2%	81.9%
2026	78.6%	81.9%	84.2%	82.0%	80.1%	82.3%	81.7%	79.1%	77.4%	M	M	M