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 (USC00215012) 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
2014	M	M	M	M	M	M	M	1.29	1.42	0.46	0.19	0.19
2015	0.03	M	0.33	0.44	4.56	3.34	4.79	1.24	0.28	1.53	1.02	0.31
2016	0.11	0.05	0.36	1.16	2.14	1.72	4.39	5.28	1.69	1.07	0.39	0.31
2017	0.09	0.78	0.41	1.26	1.17	1.57	0.03	0.05	2.18	1.09	0.14	0.15
2018	0.00	0.03	0.42	0.14	2.08	6.36	0.04	0.02	0.12	2.56	0.02	M
2019	0.24	0.03	0.65	0.88	2.05	0.74	M	M	M	2.03	0.18	0.02
2020	0.10	0.39	0.03	0.83	0.60	1.00	2.34	3.89	0.68	0.88	0.20	0.07
2021	0.15	0.01	0.10	1.62	0.33	0.14	0.07	M	0.07	0.06	0.02	M
2022	M	M	0.04	0.03	0.06	0.08	0.12	0.06	0.07	M	0.91	0.50
2023	0.04	0.04	0.74	1.24	5.34	10.02	0.93	M	M	M	M	M
2024	M	M	M	M	M	M	M	M	0.07	1.06	0.98	0.38
2025	M	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	0.79	0.76	1.08	1.71	3.15	4.72	3.76	3.44	2.76	2.26	0.96	1.05

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	7.1	5.9	9.1	10.6	11.2	10.0
2015	10.8	10.7	10.8	11.8	10.6	7.5	7.8	6.9	7.3	9.9	9.8	9.2
2016	9.0	10.2	8.4	12.0	9.8	9.7	7.3	7.1	9.1	9.4	9.4	11.8
2017	9.1	10.2	10.4	9.2	10.4	9.6	6.8	6.0	8.8	10.9	10.5	9.7
2018	10.2	10.1	8.4	10.6	9.1	8.5	6.6	6.7	8.6	8.6	8.9	9.5
2019	8.9	8.6	8.8	9.8	9.1	9.6	M	M	M	9.7	8.4	8.1
2020	7.6	8.5	9.2	9.2	9.5	10.2	6.9	6.6	8.0	9.3	10.5	8.7
2021	8.9	9.1	10.4	10.4	9.9	8.5	6.4	8.6	8.3	8.7	9.8	9.9
2022	10.6	11.8	10.8	12.4	10.7	10.8	7.5	6.4	7.1	8.8	10.9	9.3
2023	7.4	10.4	9.8	11.1	9.6	7.6	6.0	6.6	7.2	8.8	9.9	9.6
2024	8.8	9.4	10.9	11.1	10.4	9.5	6.0	6.7	8.1	9.4	8.9	9.5
2025	8.0	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
2014	M	M	M	M	M	M	79.34	75.37	67.92	55.15	26.37	24.74
2015	19.93	13.41	40.03	56.76	63.73	74.63	78.65	73.52	73.67	57.80	41.55	27.95
2016	17.41	26.18	44.04	50.49	68.64	73.27	78.17	76.91	68.10	55.26	46.85	19.98
2017	18.96	28.28	37.34	52.77	64.29	74.34	79.39	74.75	69.23	55.27	32.70	17.99
2018	16.30	15.01	33.19	44.40	73.79	77.00	78.30	77.02	65.83	45.65	26.84	25.05
2019	10.65	10.15	27.30	48.50	60.15	74.01	M	M	M	46.42	31.28	23.14
2020	19.49	22.60	36.28	47.87	62.86	78.57	80.70	78.09	65.93	45.44	40.35	27.52
2021	25.23	11.99	45.40	50.59	67.84	82.54	82.93	80.84	73.66	59.03	37.54	22.44
2022	12.62	14.92	31.28	39.06	64.38	77.16	78.89	76.61	70.14	56.55	33.08	16.26
2023	19.38	22.63	27.30	43.99	73.42	79.49	77.00	78.09	74.54	54.00	38.15	33.94
2024	19.37	34.72	36.96	54.25	65.51	74.12	79.95	76.11	77.00	60.80	36.87	24.01
2025	12.72	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	15.20	21.47	34.40	51.90	65.99	74.19	78.50	78.10	69.22	53.50	34.11	21.50

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	55.58	57.11	47.22	35.13	11.17	12.48
2015	2.74	-5.81	19.96	31.59	42.11	54.43	59.45	53.73	51.01	37.28	26.17	16.36
2016	2.76	10.30	26.90	32.01	45.16	54.16	58.74	56.83	49.96	38.16	31.81	2.84
2017	3.32	11.57	17.88	32.51	42.97	53.79	57.65	52.99	48.77	35.78	17.20	-0.30
2018	-0.70	-6.29	19.19	24.09	47.85	57.05	58.35	55.76	46.51	31.25	13.56	9.67
2019	0.26	-0.82	11.08	32.16	40.21	51.93	M	M	M	33.10	17.93	3.18
2020	2.73	-1.93	17.05	27.04	41.36	57.10	60.06	56.33	44.64	27.93	21.96	9.81
2021	10.20	-4.08	24.80	29.72	41.99	56.45	59.91	57.95	50.52	40.36	22.48	3.50
2022	-9.76	-9.77	14.13	28.19	44.19	54.89	58.81	56.45	48.62	35.32	20.23	2.21
2023	3.84	0.33	5.46	27.16	48.02	59.47	54.32	56.87	52.75	37.42	20.32	22.99
2024	7.44	17.90	18.24	33.03	44.35	52.98	60.15	56.41	53.68	38.83	25.21	12.09
2025	-1.56	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	-2.50	1.69	15.19	29.90	43.30	53.50	57.60	55.01	46.61	34.39	19.50	5.61

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	67.46	66.24	57.57	45.14	18.77	18.61
2015	11.33	3.80	30.00	44.17	52.92	64.53	69.05	63.62	62.34	47.54	33.86	22.16
2016	10.09	18.24	35.47	41.25	56.90	63.72	68.45	66.87	59.03	46.71	39.33	11.41
2017	11.14	19.93	27.61	42.64	53.63	64.07	68.52	63.87	59.00	45.52	24.95	8.85
2018	7.80	4.36	26.19	34.25	60.82	67.02	68.33	66.39	56.17	38.45	20.20	17.36
2019	5.45	4.66	19.19	40.33	50.18	62.97	M	M	M	39.76	24.61	13.16
2020	11.11	10.33	26.66	37.45	52.11	67.84	70.38	67.21	55.29	36.69	31.15	18.67
2021	17.71	3.96	35.10	40.16	54.92	69.50	71.42	69.39	62.09	49.70	30.01	12.97
2022	1.43	2.57	22.70	33.62	54.28	66.03	68.85	66.53	59.38	45.93	26.66	9.24
2023	11.61	11.48	16.38	35.57	60.72	69.48	65.66	67.48	63.64	45.71	29.24	28.47
2024	13.41	26.31	27.60	43.64	54.93	63.55	70.05	66.26	65.34	49.81	31.04	18.05
2025	5.58	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	6.35	11.58	24.80	40.90	54.65	63.85	68.05	66.55	57.91	43.95	26.81	13.55

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
2014	M	M	M	M	M	M	62.7%	80.9%	77.7%	71.1%	79.2%	86.1%
2015	81.3%	75.0%	71.7%	52.8%	68.1%	72.9%	75.7%	77.9%	73.0%	71.5%	84.1%	87.5%
2016	84.5%	82.2%	74.3%	66.0%	57.4%	72.7%	77.2%	78.2%	77.2%	77.4%	80.7%	82.5%
2017	84.2%	80.2%	69.9%	70.2%	62.3%	66.4%	75.1%	77.1%	78.2%	70.6%	80.9%	82.1%
2018	80.1%	77.3%	76.5%	63.3%	59.7%	73.6%	77.6%	77.3%	77.5%	81.4%	84.0%	84.4%
2019	79.1%	80.1%	84.1%	75.0%	68.2%	62.3%	M	M	M	79.6%	82.5%	84.8%
2020	83.5%	78.8%	79.1%	68.1%	62.8%	66.3%	75.5%	79.1%	73.7%	73.5%	79.1%	84.7%
2021	85.0%	77.9%	67.3%	69.1%	55.9%	58.9%	69.4%	70.9%	68.2%	78.6%	80.2%	82.3%
2022	79.8%	78.1%	75.2%	82.5%	70.7%	62.5%	77.6%	81.8%	75.1%	68.7%	82.4%	83.6%
2023	89.6%	79.9%	79.9%	76.1%	58.9%	71.1%	74.9%	79.3%	76.1%	81.4%	80.8%	87.9%
2024	86.9%	80.3%	69.1%	65.2%	69.6%	70.1%	78.1%	82.2%	70.1%	66.3%	87.8%	88.2%
2025	78.3%	M	M	M	M	M	M	M	M	M	M	M