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
2016	M	M	M	M	M	0.00	0.00	M	M	M	M	M
2017	M	M	M	M	M	M	0.00	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

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2016	3.7	4.7	4.4	7.2	8.8	9.1	7.3	7.4	6.0	3.8	3.4	5.8
2017	4.7	5.9	4.4	7.3	7.9	9.5	8.1	7.0	5.6	4.0	3.9	6.2
2018	4.3	4.2	4.5	5.3	7.7	9.9	7.9	8.3	6.1	2.9	3.9	4.7
2019	4.9	5.2	4.8	5.3	7.3	9.1	8.4	7.4	5.1	4.4	3.4	6.0
2020	5.4	5.5	5.4	5.7	6.7	7.2	6.6	7.1	4.4	4.1	4.2	4.8
2021	4.9	3.8	4.6	4.5	6.8	7.3	7.6	6.9	5.6	3.7	4.9	4.9
2022	5.1	3.9	4.5	5.0	9.2	8.4	7.1	6.7	5.0	5.5	3.3	5.0
2023	5.8	4.0	4.3	5.0	7.0	9.7	6.8	8.6	6.0	2.9	4.0	5.0
2024	4.8	5.0	4.3	5.0	7.2	8.7	8.2	7.5	5.9	3.5	3.4	4.8
2025	5.2	4.3	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
2016	82.85	88.35	98.14	101.60	104.93	100.64	90.01	87.28	90.78	90.12	90.34	85.54
2017	83.15	90.95	96.16	102.13	104.64	98.00	87.98	89.19	91.70	96.45	88.88	83.27
2018	85.83	91.01	98.31	103.10	105.97	100.10	88.15	89.08	90.98	97.26	92.96	84.26
2019	82.75	88.06	94.88	105.14	104.58	100.22	93.66	88.10	89.30	92.27	89.84	82.75
2020	80.19	88.67	91.75	102.68	104.67	96.38	92.85	87.08	93.38	95.54	90.68	85.36
2021	83.50	91.53	98.95	103.52	100.63	96.08	92.50	90.53	87.98	92.85	90.74	81.53
2022	80.72	89.02	99.30	105.56	104.12	99.20	89.18	89.54	92.42	93.61	91.16	86.46
2023	81.65	93.01	94.48	100.28	102.55	96.74	90.01	90.70	91.94	95.93	90.98	85.52
2024	83.74	89.17	96.05	101.53	106.15	99.50	88.76	88.44	88.76	93.49	90.38	83.21
2025	84.43	87.57	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
2016	58.73	63.64	73.57	78.26	82.46	85.46	80.43	79.09	79.92	75.37	63.72	56.74
2017	61.21	63.11	73.81	78.87	84.55	83.40	79.82	79.67	80.36	74.79	63.26	59.52
2018	58.07	61.70	69.22	77.66	82.81	83.30	78.63	77.70	75.74	72.70	63.02	54.70
2019	53.54	59.77	66.90	77.24	82.46	82.40	80.60	78.74	78.08	75.20	70.94	62.14
2020	56.79	61.67	67.25	85.28	86.35	81.50	79.21	78.98	79.40	76.64	64.22	59.64
2021	58.71	60.48	69.74	77.78	81.53	81.50	79.67	79.67	77.48	74.39	64.94	59.29
2022	55.63	59.77	70.44	76.70	82.46	82.04	77.90	78.28	79.22	72.65	63.50	62.08
2023	56.39	59.96	69.86	77.24	81.59	82.34	79.44	80.02	79.46	74.91	66.44	63.80
2024	58.19	64.28	68.17	78.13	83.15	83.54	80.00	78.34	77.90	76.65	63.74	57.66
2025	57.08	60.25	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
2016	70.79	76.00	85.85	89.93	93.69	93.05	85.22	83.18	85.35	82.75	77.03	71.14
2017	72.18	77.03	84.98	90.50	94.59	90.70	83.90	84.43	86.03	85.62	76.07	71.40
2018	71.95	76.36	83.76	90.38	94.39	91.70	83.39	83.39	83.36	84.98	77.99	69.48
2019	68.15	73.91	80.89	91.19	93.52	91.31	87.13	83.42	83.69	83.74	80.39	72.44
2020	68.49	75.17	79.50	93.98	95.48	88.94	86.03	83.03	86.39	86.09	77.45	72.50
2021	71.11	76.00	84.35	90.65	91.08	88.79	86.09	85.10	82.73	83.62	77.84	70.41
2022	68.17	74.40	84.87	91.13	93.29	90.62	83.54	83.91	85.82	83.13	77.33	74.27
2023	69.02	76.49	82.17	88.76	92.07	89.54	84.72	85.36	85.70	85.42	78.71	74.66
2024	70.96	76.72	82.11	89.83	94.65	91.52	84.38	83.39	83.33	85.07	77.06	70.44
2025	70.76	73.91	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
2016	57.6%	52.3%	41.6%	41.3%	52.1%	58.6%	78.2%	81.9%	72.3%	67.7%	54.3%	56.8%
2017	54.4%	46.4%	40.4%	40.0%	47.3%	66.1%	82.3%	78.0%	72.3%	59.8%	55.6%	58.3%
2018	54.0%	49.6%	38.2%	40.0%	48.5%	61.9%	83.4%	78.5%	70.5%	57.0%	54.2%	52.8%
2019	52.7%	49.2%	40.2%	39.5%	49.8%	66.4%	77.6%	84.1%	85.0%	69.0%	68.6%	63.5%
2020	60.4%	52.5%	50.8%	38.2%	47.6%	71.6%	78.4%	88.1%	76.8%	63.0%	57.5%	64.2%
2021	63.3%	54.1%	42.5%	45.5%	55.6%	69.1%	76.3%	74.1%	85.7%	67.9%	57.8%	67.2%
2022	61.7%	54.3%	40.3%	45.8%	54.7%	63.4%	84.9%	81.5%	75.0%	64.4%	57.1%	62.1%
2023	63.4%	49.1%	49.6%	43.5%	51.8%	66.4%	85.4%	76.6%	79.4%	62.9%	62.8%	68.8%
2024	66.0%	53.0%	42.3%	41.9%	47.5%	63.5%	85.5%	85.3%	82.9%	74.1%	58.1%	59.4%
2025	59.6%	47.1%	M	M	M	M	M	M	M	M	M	M