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 (USC00480484) 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
2013	M	M	M	M	M	M	0.00	0.00	0.00	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
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
NCEI Climatology	0.72	0.78	0.71	1.11	1.77	0.77	0.87	0.90	1.09	1.07	0.70	0.70

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	M	M	M	M	M	M	6.8	5.8	6.4	5.9	4.8	5.9
2014	6.0	8.3	8.7	8.5	8.6	8.0	6.8	6.0	5.7	5.4	6.8	5.2
2015	4.6	7.0	5.6	8.0	6.4	6.4	6.6	6.2	6.2	5.3	6.8	5.1
2016	5.4	5.2	7.0	8.0	6.8	6.7	6.6	5.9	6.6	7.3	5.2	6.4
2017	5.2	8.0	8.2	8.3	6.9	7.6	6.6	5.8	6.6	6.5	6.9	5.8
2018	5.6	7.7	8.1	9.1	6.6	8.3	7.0	8.5	9.6	8.7	7.7	6.8
2019	7.3	10.5	7.8	9.2	12.4	12.7	12.7	11.1	12.9	12.2	9.8	10.0
2020	10.9	10.6	13.3	12.2	12.5	12.8	12.1	11.7	11.2	10.6	11.9	9.8
2021	10.8	12.2	13.3	13.1	12.4	12.3	11.7	11.2	10.0	11.1	10.7	12.5
2022	10.5	11.1	11.6	13.4	12.0	12.1	10.8	10.8	10.9	7.8	0.0	3.4
2023	5.8	6.3	6.7	6.5	7.1	6.7	6.1	6.2	6.1	5.3	3.9	3.4
2024	4.7	6.2	7.8	7.5	7.9	7.1	6.9	6.8	6.4	7.1	5.4	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
2013	M	M	M	M	M	M	86.76	86.38	74.52	53.77	42.83	30.33
2014	34.67	38.58	49.69	55.86	68.06	78.89	88.26	87.18	89.42	87.85	54.82	56.84
2015	46.33	58.16	65.23	72.32	72.57	86.26	94.28	94.28	94.28	81.15	66.97	57.86
2016	35.55	45.32	52.98	68.58	75.51	88.50	95.36	95.37	83.23	73.07	73.40	73.40
2017	45.08	49.71	64.30	64.74	71.34	86.66	91.83	87.40	88.32	73.86	59.72	63.50
2018	57.35	48.83	57.27	67.02	76.71	90.15	96.45	92.55	83.10	67.72	62.40	40.81
2019	38.09	42.49	40.21	56.26	59.75	73.62	84.25	83.14	76.07	64.52	52.96	42.37
2020	42.42	38.66	50.51	64.32	75.60	80.89	89.21	88.89	84.82	69.59	65.61	65.80
2021	65.80	65.80	65.80	70.99	77.00	90.17	90.29	90.14	85.05	83.30	83.30	57.72
2022	42.80	44.40	50.63	85.25	87.16	84.49	82.58	82.86	82.99	79.57	50.18	42.65
2023	42.37	40.00	40.22	56.23	76.59	78.84	91.77	95.41	89.60	89.60	89.60	89.60
2024	81.59	48.28	53.74	68.33	65.67	86.53	91.70	86.45	79.63	73.62	68.00	M
NCEI Climatology	32.20	36.68	48.30	57.80	67.91	79.40	86.70	83.90	74.50	59.89	44.61	33.21

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	M	M	M	M	M	M	51.95	50.72	45.90	29.36	18.19	6.20
2014	5.57	16.13	23.59	27.18	36.54	40.82	50.73	46.28	29.69	24.01	-0.39	-14.91
2015	1.60	-0.40	-1.70	-1.84	-1.84	-1.84	-1.84	-1.84	-1.84	11.11	11.19	-4.83
2016	2.25	-10.05	14.91	15.80	15.80	37.04	37.59	35.38	34.51	24.56	17.98	-7.01
2017	-6.76	2.41	-2.90	25.02	31.69	34.26	47.93	46.57	37.48	19.73	11.26	-5.21
2018	-5.03	3.95	8.83	14.77	31.47	37.66	37.20	38.80	35.16	26.65	5.15	-6.78
2019	-11.45	-15.85	12.68	31.36	33.82	42.83	50.39	46.60	39.85	8.39	-11.91	-6.47
2020	-8.64	-14.63	-20.70	-13.96	29.86	39.14	40.01	42.33	33.07	14.26	-9.90	-11.38
2021	-15.32	-15.90	-15.90	-15.90	26.26	26.80	53.96	43.72	34.16	26.53	19.30	7.50
2022	-9.20	-17.46	-22.47	-32.24	-9.63	15.74	1.67	2.64	-4.59	-20.99	-12.19	-13.28
2023	-22.99	-29.13	-1.56	1.46	22.80	32.24	41.78	42.19	34.86	22.25	2.82	-6.56
2024	-9.26	-1.84	-14.30	-11.24	27.21	23.00	37.86	47.01	38.22	27.51	15.81	M
NCEI Climatology	7.00	12.17	22.41	28.90	36.20	43.11	49.20	47.70	39.70	29.30	18.79	9.20

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	M	M	M	M	M	M	69.35	68.55	60.21	41.57	30.51	18.27
2014	20.12	27.36	36.64	41.52	52.30	59.85	69.50	66.73	59.56	55.93	27.22	20.96
2015	23.96	28.88	31.76	35.24	35.36	42.21	46.22	46.22	46.22	46.13	39.08	26.52
2016	18.90	17.63	33.95	42.19	45.65	62.77	66.48	65.37	58.87	48.82	45.69	33.19
2017	19.16	26.06	30.70	44.88	51.52	60.46	69.88	66.98	62.90	46.79	35.49	29.15
2018	26.16	26.39	33.05	40.89	54.09	63.91	66.83	65.67	59.13	47.18	33.77	17.01
2019	13.32	13.32	26.45	43.81	46.79	58.22	67.32	64.87	57.96	36.45	20.53	17.95
2020	16.89	12.01	14.91	25.18	52.73	60.01	64.61	65.61	58.94	41.92	27.86	27.21
2021	25.24	24.95	24.95	27.54	51.63	58.49	72.13	66.93	59.61	54.91	51.30	32.61
2022	16.80	13.47	14.08	26.51	38.76	50.12	42.13	42.75	39.20	29.29	19.00	14.69
2023	9.69	5.44	19.33	28.84	49.70	55.54	66.77	68.80	62.23	55.92	46.21	41.52
2024	36.17	23.22	19.72	28.55	46.44	54.77	64.78	66.73	58.92	50.56	41.90	M
NCEI Climatology	19.60	24.42	35.35	43.35	52.06	61.25	67.95	65.80	57.10	44.60	31.70	21.21

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
2013	M	M	M	M	M	M	42.6%	42.9%	58.1%	66.6%	74.1%	71.3%
2014	70.2%	67.8%	58.7%	56.5%	50.6%	38.3%	39.7%	56.0%	59.9%	60.3%	64.4%	76.0%
2015	75.2%	62.1%	56.7%	52.9%	67.8%	44.4%	48.2%	41.1%	46.4%	56.2%	64.4%	72.8%
2016	75.5%	70.8%	64.7%	63.4%	59.0%	40.6%	39.3%	40.0%	50.4%	54.7%	64.8%	68.2%
2017	78.6%	71.4%	56.5%	56.1%	54.0%	36.6%	32.8%	32.5%	50.6%	54.7%	59.9%	64.6%
2018	63.6%	64.2%	57.6%	49.5%	50.3%	30.1%	30.8%	34.5%	29.6%	63.5%	66.6%	72.6%
2019	75.5%	65.6%	70.3%	61.1%	58.2%	48.6%	40.0%	36.9%	41.3%	47.1%	65.6%	74.8%
2020	74.1%	69.6%	67.0%	52.0%	46.1%	40.4%	34.2%	26.9%	39.0%	40.7%	56.7%	66.9%
2021	71.0%	65.5%	59.9%	47.0%	41.2%	25.8%	36.0%	38.6%	42.1%	62.3%	59.3%	63.8%
2022	67.1%	63.9%	63.9%	44.3%	49.1%	41.4%	38.5%	38.1%	40.1%	52.1%	67.6%	76.9%
2023	79.8%	72.3%	74.1%	64.8%	55.3%	56.7%	45.4%	50.8%	46.9%	59.6%	66.7%	78.2%
2024	76.0%	73.4%	69.0%	55.5%	59.8%	50.4%	39.8%	47.4%	45.1%	60.8%	69.9%	M