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 (USW00013991) 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	M	M	M	0.54	0.86
2015	M	M	1.01	2.48	6.96	6.93	M	1.72	1.98	1.61	5.21	4.15
2016	0.72	0.27	1.56	2.22	4.56	2.37	7.51	3.51	2.70	1.85	0.84	0.76
2017	0.54	0.19	2.76	6.38	2.52	7.40	2.49	4.40	1.08	3.38	0.25	0.59
2018	1.04	3.02	5.20	0.29	2.03	1.75	2.62	3.75	2.26	3.61	1.28	2.74
2019	1.38	1.15	2.90	3.74	5.01	3.47	2.83	3.56	3.54	2.78	0.85	1.64
2020	2.23	0.75	4.53	0.33	1.79	2.45	6.91	1.67	1.83	0.70	1.63	0.62
2021	1.89	0.01	4.42	3.52	4.06	8.28	2.61	1.55	1.07	0.68	0.56	0.56
2022	0.26	0.26	2.82	2.39	2.81	1.43	2.32	1.52	0.65	0.60	3.21	0.82
2023	0.79	1.85	1.76	0.27	1.37	1.02	2.21	2.25	0.42	1.57	0.76	1.95
2024	0.17	M	0.61	0.79	0.64	4.30	5.84	4.24	2.34	1.32	3.66	0.98
2025	0.29	0.05	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	1.46	1.98	3.00	4.39	5.47	5.10	4.63	3.88	4.04	3.20	2.64	2.06

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	M	M	M	M	M	M	10.5	7.4
2015	M	M	7.8	8.6	7.9	7.0	4.2	4.8	6.1	7.1	9.0	9.1
2016	8.2	10.3	9.2	10.0	6.7	6.1	5.7	5.1	6.2	7.5	7.5	7.3
2017	8.5	8.8	10.0	9.4	8.3	7.4	4.7	4.3	4.6	7.1	6.0	6.3
2018	7.0	6.2	6.8	6.5	2.8	1.7	0.5	4.6	5.4	6.9	5.9	3.9
2019	6.7	6.2	8.0	8.7	6.9	6.4	4.9	4.7	5.8	6.7	7.1	7.4
2020	6.4	7.1	8.0	2.6	3.4	6.7	4.5	4.2	5.1	7.0	8.6	7.0
2021	7.0	8.3	10.5	8.7	7.2	5.6	4.2	5.2	6.3	7.1	7.1	8.7
2022	8.4	9.1	9.6	10.3	8.8	6.0	5.0	4.3	5.4	7.0	8.2	8.6
2023	7.9	8.3	9.8	9.2	6.2	4.9	4.8	5.1	4.5	7.5	6.3	7.9
2024	7.5	8.2	10.0	10.4	1.0	6.5	4.6	4.9	4.3	6.9	7.8	7.5
2025	7.5	8.3	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	M	M	M	M	51.98	43.14
2015	30.20	M	63.02	70.28	75.08	84.41	89.60	85.65	87.41	M	58.40	51.45
2016	40.77	50.43	63.88	70.22	75.61	91.10	88.50	87.63	84.08	75.72	63.08	41.06
2017	44.14	60.86	69.80	70.16	77.58	87.20	90.06	83.62	85.34	71.37	56.84	44.08
2018	40.19	45.69	53.25	61.10	86.81	89.48	88.50	86.00	81.32	65.74	43.40	41.87
2019	35.72	37.14	48.43	66.26	71.60	81.50	85.36	82.28	84.08	61.61	49.52	45.65
2020	37.81	41.06	56.33	54.77	68.33	83.90	85.48	82.75	76.04	63.12	58.28	44.19
2021	37.57	29.30	57.12	63.20	68.93	84.20	83.74	86.29	83.42	68.17	55.46	53.43
2022	37.23	41.51	55.85	62.78	74.10	84.44	86.52	84.49	81.02	67.77	51.98	40.13
2023	41.87	48.65	50.46	67.70	77.81	85.16	86.06	83.91	82.28	67.77	55.28	47.33
2024	31.42	56.08	60.16	67.67	77.90	84.50	83.21	82.98	80.60	74.27	54.68	43.26
2025	33.16	32.25	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	36.80	42.47	53.80	64.90	74.60	83.71	87.50	86.10	79.31	67.31	53.10	41.39

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	M	M	M	M	35.24	34.31
2015	30.20	M	40.45	48.74	58.19	69.04	75.20	66.20	66.59	M	40.40	35.89
2016	25.32	31.57	42.63	49.04	55.28	69.20	71.19	69.57	63.14	53.83	42.92	25.38
2017	28.11	34.89	41.00	50.42	57.08	65.36	71.19	63.76	61.34	50.75	38.30	26.83
2018	22.07	26.60	36.65	39.26	65.62	69.80	67.77	66.49	59.96	45.82	27.80	27.90
2019	22.13	22.68	31.36	45.56	54.41	63.44	67.88	65.39	64.22	41.87	29.78	28.57
2020	26.37	26.10	39.20	47.65	58.43	64.88	68.58	62.54	55.28	41.87	37.58	26.08
2021	26.95	14.96	40.47	43.70	53.83	64.70	66.61	67.13	59.18	49.94	34.76	32.93
2022	17.66	19.59	34.25	41.66	55.98	64.22	67.19	65.21	56.00	41.58	31.94	23.52
2023	27.24	27.31	33.34	41.54	54.18	61.76	65.39	66.03	56.72	46.28	34.76	34.26
2024	19.11	32.43	37.92	45.80	59.45	65.48	65.45	64.40	56.48	46.11	37.70	28.52
2025	16.85	17.68	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	18.90	22.65	32.30	42.61	54.31	63.69	67.41	64.81	56.30	44.69	33.20	23.80

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	M	M	M	M	43.61	38.73
2015	30.20	M	51.73	59.51	66.64	76.72	82.40	75.93	77.00	M	49.40	43.67
2016	33.05	41.00	53.25	59.63	65.45	80.15	79.85	78.60	73.61	64.78	53.00	33.22
2017	36.12	47.88	55.40	60.29	67.33	76.28	80.63	73.69	73.34	61.06	47.57	35.45
2018	31.13	36.15	44.95	50.18	76.22	79.64	78.13	76.25	70.64	55.78	35.60	34.89
2019	28.92	29.91	39.90	55.91	63.01	72.47	76.62	73.84	74.15	51.74	39.65	37.11
2020	32.09	33.58	47.76	51.21	63.38	74.39	77.03	72.65	65.66	52.50	47.93	35.14
2021	32.26	22.13	48.80	53.45	61.38	74.45	75.17	76.71	71.30	59.06	45.11	43.18
2022	27.44	30.55	45.05	52.22	65.04	74.33	76.85	74.85	68.51	54.67	41.96	31.83
2023	34.55	37.98	41.90	54.62	66.00	73.46	75.72	74.97	69.50	57.03	45.02	40.80
2024	25.26	44.26	49.04	56.73	68.68	74.99	74.33	73.69	68.54	60.19	46.19	35.89
2025	25.00	24.96	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	27.85	32.56	43.05	53.76	64.46	73.70	77.45	75.45	67.80	56.00	43.15	32.60

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	M	M	M	M	74.9%	84.6%
2015	M	M	65.4%	63.8%	74.4%	80.2%	63.5%	76.2%	71.0%	M	70.8%	80.4%
2016	76.3%	66.1%	67.0%	63.1%	70.9%	66.5%	79.9%	80.9%	76.1%	72.6%	69.8%	71.9%
2017	79.9%	64.4%	63.8%	67.7%	66.8%	66.2%	75.1%	78.3%	69.9%	69.9%	67.3%	67.2%
2018	69.8%	73.2%	70.9%	60.5%	67.0%	71.7%	71.8%	76.0%	76.9%	74.7%	80.3%	81.7%
2019	80.4%	82.2%	71.5%	66.0%	79.7%	74.2%	78.3%	82.6%	79.3%	76.4%	72.2%	77.5%
2020	83.6%	77.7%	74.2%	67.4%	78.3%	74.5%	82.8%	82.1%	79.9%	71.6%	70.3%	75.5%
2021	82.9%	75.5%	66.2%	66.8%	73.8%	73.5%	81.5%	78.5%	70.2%	78.4%	65.5%	70.9%
2022	69.1%	68.0%	68.0%	65.3%	73.6%	70.9%	77.0%	78.0%	69.3%	60.5%	71.6%	74.7%
2023	80.7%	70.7%	73.8%	56.0%	65.5%	65.8%	76.5%	82.5%	72.0%	70.0%	69.4%	80.7%
2024	84.2%	62.8%	64.5%	59.2%	58.9%	74.6%	81.4%	80.2%	73.4%	58.3%	78.8%	80.6%
2025	72.6%	75.8%	M	M	M	M	M	M	M	M	M	M