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 (USC00017999) 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	2.17	5.10
2015	4.48	3.27	2.52	0.86	3.76	2.13	2.29	3.36	1.47	3.17	1.46	1.80
2016	M	M	M	2.03	0.99	1.27	3.19	0.67	1.39	0.06	2.39	1.83
2017	7.16	2.90	3.53	3.09	4.76	11.16	2.58	3.64	2.84	3.87	0.81	2.87
2018	1.62	6.07	2.31	4.30	4.17	3.25	4.59	2.09	4.46	0.67	6.29	6.89
2019	4.47	4.95	2.00	3.81	1.91	3.97	2.10	3.54	0.94	3.25	4.61	3.90
2020	6.40	7.42	5.86	6.01	3.12	3.80	3.61	6.09	2.53	4.88	2.30	1.94
2021	2.79	2.00	5.31	3.15	5.79	5.32	7.46	1.97	2.43	2.94	1.06	2.93
2022	3.03	4.68	7.89	3.92	3.20	6.06	4.04	1.92	1.38	1.70	2.84	1.77
2023	7.28	4.48	5.78	3.31	3.20	2.81	6.12	4.48	2.12	0.73	1.24	1.98
2024	6.81	3.49	3.94	4.24	3.91	1.98	6.94	0.61	4.22	M	1.49	M
NCEI Climatology	5.55	6.10	5.45	4.79	4.40	4.97	4.62	4.32	3.70	3.46	4.71	5.25

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	3.3	2.4
2015	2.8	3.7	2.8	3.1	2.2	2.2	0.7	0.7	2.5	3.2	4.1	4.1
2016	4.2	5.3	4.8	4.8	3.2	3.0	3.6	3.0	2.3	3.0	3.1	4.1
2017	4.8	3.9	4.6	3.7	3.7	2.5	2.1	2.1	1.7	2.0	2.0	2.9
2018	3.9	5.0	5.5	4.9	2.7	2.5	1.6	0.6	1.8	3.3	3.7	4.2
2019	4.3	4.8	4.5	4.3	3.1	3.5	2.6	2.4	2.3	3.5	2.8	4.8
2020	3.5	3.4	4.0	3.4	3.5	3.4	2.1	2.5	3.5	3.1	2.9	3.1
2021	3.7	4.0	3.6	3.3	3.6	2.9	2.1	1.5	2.0	3.0	2.6	3.6
2022	4.5	4.6	4.6	4.3	4.1	2.4	2.9	2.2	2.8	3.2	3.6	4.2
2023	4.3	4.3	2.4	3.4	2.3	1.6	0.6	0.9	2.1	3.3	2.9	3.6
2024	4.9	4.8	3.9	4.6	3.3	3.3	2.3	2.4	4.2	2.2	3.7	2.0
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	59.93	58.34
2015	53.64	51.36	68.18	75.05	83.81	89.19	92.78	85.00	86.24	77.58	70.19	67.47
2016	53.96	61.75	71.70	72.48	82.33	92.04	94.21	94.01	91.92	85.02	73.79	60.86
2017	63.60	67.43	70.25	81.17	82.16	85.69	90.93	88.75	84.97	77.04	67.57	55.50
2018	52.77	69.53	67.95	73.27	85.43	89.71	90.57	89.52	91.30	77.63	59.88	56.80
2019	54.20	64.58	65.18	75.87	85.16	87.47	90.30	91.55	93.28	78.30	63.58	60.53
2020	59.56	59.09	71.71	72.43	80.18	86.18	90.57	86.40	80.49	76.61	68.56	57.24
2021	55.33	58.26	69.43	73.05	79.84	86.02	87.54	89.31	83.16	76.56	64.44	66.70
2022	54.84	62.29	69.13	74.08	84.30	89.92	90.62	88.05	85.25	75.20	66.29	58.99
2023	61.25	66.96	70.25	74.53	79.80	86.39	92.36	93.78	85.70	77.02	66.15	60.11
2024	54.16	65.38	69.19	75.24	83.84	90.57	89.95	92.56	84.68	79.53	71.04	50.90
NCEI Climatology	54.50	58.82	66.69	74.59	81.30	87.31	90.31	89.40	85.00	75.60	65.00	56.79

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	34.63	38.30
2015	30.73	29.36	45.88	54.39	59.69	68.78	71.29	67.08	65.34	53.41	49.55	46.74
2016	33.32	38.69	47.85	46.06	58.36	67.33	71.83	72.75	66.71	54.27	42.29	40.70
2017	42.03	45.09	46.97	54.08	58.25	68.63	70.85	70.12	62.20	54.04	44.56	37.69
2018	30.18	49.46	43.44	46.16	62.09	67.89	70.52	69.35	71.13	55.75	38.58	40.41
2019	39.33	51.51	42.21	49.99	61.21	66.94	69.72	69.41	66.37	56.66	37.15	40.36
2020	38.50	39.09	52.80	47.78	55.99	66.10	70.89	70.42	63.89	55.39	45.14	32.80
2021	34.73	35.65	45.58	47.32	56.74	66.55	69.46	70.53	63.25	55.57	36.35	43.02
2022	30.89	36.89	41.66	48.15	61.50	67.81	71.44	69.47	61.09	45.64	42.00	40.57
2023	39.37	45.41	44.93	50.08	58.99	64.97	69.89	69.72	63.04	51.83	41.22	35.12
2024	31.75	38.47	45.37	51.03	63.18	67.01	71.36	68.62	65.96	51.40	48.52	27.03
NCEI Climatology	31.40	34.52	41.30	47.50	56.89	65.11	68.50	67.40	61.39	48.80	38.51	33.81

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	47.28	48.32
2015	42.19	40.36	57.03	64.72	71.75	78.99	82.04	76.04	75.79	65.49	59.87	57.10
2016	43.64	50.22	59.78	59.27	70.35	79.69	83.02	83.38	79.31	69.64	58.04	50.78
2017	52.81	56.26	58.61	67.62	70.20	77.16	80.89	79.44	73.59	65.54	56.07	46.59
2018	41.48	59.49	55.69	59.72	73.76	78.80	80.55	79.43	81.22	66.69	49.23	48.61
2019	46.76	58.05	53.70	62.93	73.19	77.20	80.01	80.48	79.83	67.48	50.36	50.45
2020	49.03	49.09	62.25	60.10	68.09	76.14	80.73	78.41	72.19	66.00	56.85	45.02
2021	45.03	46.96	57.50	60.18	68.29	76.29	78.50	79.92	73.20	66.06	50.39	54.86
2022	42.86	49.59	55.40	61.11	72.90	78.86	81.03	78.76	73.17	60.42	54.14	49.78
2023	50.31	56.19	57.59	62.31	69.40	75.68	81.12	81.75	74.37	64.42	53.68	47.62
2024	42.96	51.93	57.28	63.14	73.51	78.79	80.65	80.59	75.32	65.47	59.78	38.97
NCEI Climatology	42.95	46.67	53.99	61.05	69.10	76.21	79.40	78.40	73.20	62.20	51.75	45.30

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	73.4%	84.4%
2015	74.5%	66.8%	80.4%	79.3%	77.0%	79.9%	83.8%	82.0%	84.8%	82.4%	84.0%	85.8%
2016	75.6%	69.0%	73.5%	68.3%	72.1%	71.5%	75.5%	81.7%	77.8%	68.7%	65.6%	79.2%
2017	81.4%	77.4%	70.9%	74.7%	81.2%	85.1%	84.9%	85.0%	81.7%	82.5%	85.3%	85.7%
2018	71.4%	85.1%	73.8%	73.6%	82.7%	84.2%	85.0%	85.1%	78.8%	82.1%	87.9%	87.6%
2019	80.7%	76.4%	63.7%	71.7%	72.9%	73.3%	74.0%	74.1%	64.3%	74.5%	75.5%	78.5%
2020	75.0%	78.4%	78.0%	72.0%	73.2%	79.6%	81.8%	83.7%	83.5%	81.8%	77.4%	79.1%
2021	77.8%	75.2%	72.1%	68.8%	73.7%	81.5%	86.1%	83.5%	83.6%	83.9%	75.3%	84.3%
2022	73.3%	72.1%	68.0%	70.2%	75.2%	78.6%	81.5%	83.9%	75.9%	70.0%	75.5%	76.5%
2023	78.2%	76.3%	66.5%	70.5%	77.7%	78.4%	76.8%	80.2%	79.1%	73.8%	74.4%	73.2%
2024	74.3%	67.2%	72.1%	71.7%	77.1%	71.9%	83.4%	72.4%	77.1%	73.6%	77.3%	72.0%