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 (USW00026615) 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	0.12	0.02	1.92	1.14	0.90	0.96	0.94	0.79
2015	0.18	0.14	0.11	0.30	1.58	0.23	1.44	1.82	3.51	0.08	0.55	M
2016	M	M	0.03	0.14	1.49	1.68	2.23	2.81	2.32	0.89	0.10	0.17
2017	0.48	0.09	0.00	0.17	0.15	M	M	1.14	1.96	3.33	0.20	0.36
2018	0.06	0.20	0.00	0.75	1.11	1.32	1.27	3.10	1.44	1.72	0.69	0.10
2019	0.17	1.22	0.55	0.20	1.85	0.62	1.29	1.89	4.71	2.06	1.51	0.07
2020	0.00	0.09	0.16	1.22	1.16	1.71	0.76	1.12	1.92	0.80	1.31	0.02
2021	0.05	0.00	0.06	0.12	0.22	0.32	1.84	1.87	1.69	0.57	0.00	0.36
2022	0.36	0.11	0.26	0.05	0.05	0.29	2.92	2.42	1.72	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	0.00	0.00	0.12	0.06	0.00	0.72	2.19	0.00	0.63	0.02	0.17	0.13
2025	0.35	0.00	0.10	0.11	0.48	M	M	M	M	M	M	M
NCEI Climatology	0.77	0.91	0.74	0.79	1.21	1.77	2.57	3.36	2.89	1.84	1.80	1.06

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	14.1	11.3	10.1	9.5	11.5	13.4	14.5	16.0
2015	15.0	17.7	12.9	12.9	10.5	11.5	8.9	11.6	11.8	7.9	15.2	19.6
2016	22.7	17.9	17.0	10.1	13.4	9.4	11.7	9.2	10.7	15.2	14.6	15.7
2017	13.9	14.4	12.9	7.8	8.9	M	M	12.0	11.7	12.7	11.0	16.3
2018	18.8	18.7	13.7	14.2	12.0	10.7	10.5	11.4	10.3	12.6	15.0	12.7
2019	19.0	18.7	13.1	11.8	11.8	10.3	9.3	10.3	13.7	13.1	18.7	16.5
2020	15.9	18.3	14.5	12.2	9.2	10.2	9.0	7.8	12.5	10.9	14.7	19.0
2021	16.2	21.0	16.2	14.5	10.1	12.0	11.0	10.6	10.8	13.5	11.1	17.0
2022	4.3	19.8	15.7	12.2	10.7	8.8	10.7	11.9	12.8	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	11.6	27.9	16.7	19.3	12.7	12.0	11.0	14.6	11.7	13.6	15.2	20.2
2025	17.2	16.3	13.7	13.3	10.8	12.9	10.1	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	51.99	60.53	62.62	64.00	54.63	34.65	30.51	23.62
2015	12.81	22.12	25.85	36.46	52.62	65.29	62.48	57.59	49.14	40.29	29.71	15.26
2016	22.55	25.63	26.19	46.34	56.53	64.59	65.50	64.03	55.04	43.31	19.46	18.27
2017	13.86	11.27	15.02	41.07	51.78	48.20	53.60	57.68	51.48	41.31	32.36	29.07
2018	15.97	27.10	28.49	36.41	46.95	60.54	63.18	57.70	56.46	45.55	28.20	15.05
2019	17.68	32.85	34.94	38.38	52.76	65.64	67.13	61.64	53.93	41.13	25.89	12.29
2020	0.82	11.30	22.20	37.50	55.80	59.90	62.16	62.81	51.50	41.23	30.67	15.37
2021	13.04	13.84	23.15	32.95	51.80	51.27	60.15	58.32	49.63	35.11	20.45	24.17
2022	10.09	15.27	25.86	37.23	53.48	66.28	60.58	57.21	52.91	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	-5.88	-4.35	26.21	27.87	36.32	61.77	59.58	54.77	50.40	34.44	23.77	21.71
2025	20.64	22.57	19.57	33.31	46.53	M	M	M	M	M	M	M
NCEI Climatology	12.70	20.13	21.99	36.90	52.00	62.10	63.60	60.50	52.71	37.91	24.31	16.30

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	M	M	M	M	38.08	46.52	49.85	52.81	43.47	24.55	22.53	15.41
2015	3.76	13.52	11.45	21.55	39.01	48.58	51.56	48.14	40.24	33.51	20.53	6.68
2016	14.60	14.55	13.85	31.85	41.57	50.21	53.63	53.52	44.24	33.57	11.19	8.14
2017	2.41	-2.03	-2.51	26.22	35.89	48.20	53.60	47.52	41.60	33.42	26.18	18.48
2018	6.11	16.16	14.12	24.90	36.39	48.67	52.08	50.24	46.79	37.95	19.05	3.85
2019	8.97	25.45	23.98	23.54	41.47	52.32	54.98	52.44	44.99	31.90	16.82	3.07
2020	-9.26	-6.73	6.25	24.53	39.25	49.72	51.47	50.95	40.93	32.69	20.41	5.32
2021	5.88	2.13	3.25	19.97	34.82	42.54	50.68	48.48	40.37	27.23	8.74	15.53
2022	-0.61	5.82	13.68	23.17	35.09	53.30	50.10	48.41	46.83	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	-15.12	-9.55	8.47	12.93	24.50	48.35	49.48	47.98	42.00	28.67	15.22	12.35
2025	11.50	12.96	3.01	20.22	33.06	M	M	M	M	M	M	M
NCEI Climatology	0.90	6.50	7.00	21.21	34.10	44.50	49.01	47.31	39.41	26.40	12.80	3.71

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	45.04	53.53	56.24	58.41	49.05	29.60	26.52	19.51
2015	8.28	17.82	18.65	29.01	45.82	56.93	57.02	52.86	44.69	36.90	25.12	10.97
2016	18.58	20.09	20.02	39.10	49.05	57.40	59.57	58.78	49.64	38.44	15.32	13.20
2017	8.14	4.62	6.25	33.65	43.84	48.20	53.60	52.60	46.54	37.37	29.27	23.78
2018	11.04	21.63	21.30	30.65	41.67	54.61	57.63	53.97	51.62	41.75	23.62	9.45
2019	13.33	29.15	29.46	30.96	47.11	58.98	61.05	57.04	49.46	36.51	21.35	7.68
2020	-4.22	2.29	14.22	31.01	47.53	54.81	56.81	56.88	46.22	36.96	25.54	10.35
2021	9.46	7.98	13.20	26.46	43.31	46.90	55.42	53.40	45.00	31.17	14.59	19.85
2022	4.74	10.54	19.77	30.20	44.29	59.79	55.34	52.81	49.87	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	-10.50	-6.95	17.34	20.40	30.41	55.06	54.53	51.38	46.20	31.56	19.49	17.03
2025	16.07	17.77	11.29	26.76	39.79	M	M	M	M	M	M	M
NCEI Climatology	6.80	13.32	14.50	29.06	43.05	53.30	56.30	53.90	46.06	32.15	18.56	10.00

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	76.2%	76.8%	80.9%	82.5%	82.2%	84.2%	87.2%	88.3%
2015	84.0%	82.4%	85.0%	83.6%	81.5%	70.8%	81.4%	85.8%	87.6%	87.9%	91.0%	86.7%
2016	84.4%	85.8%	81.1%	79.8%	78.4%	78.6%	80.4%	84.7%	86.2%	79.1%	86.7%	85.0%
2017	85.9%	85.2%	77.5%	84.1%	77.3%	M	M	82.5%	87.6%	93.4%	93.1%	91.9%
2018	84.8%	88.3%	90.5%	86.5%	84.1%	76.9%	84.4%	89.7%	88.4%	92.2%	94.0%	90.0%
2019	90.3%	93.6%	90.8%	79.8%	81.1%	78.7%	85.5%	89.2%	93.0%	93.8%	92.8%	88.6%
2020	84.9%	87.0%	91.5%	91.2%	80.1%	80.9%	87.7%	90.0%	90.2%	95.4%	97.7%	93.9%
2021	95.0%	92.1%	93.6%	93.7%	82.9%	92.5%	92.1%	92.8%	94.2%	96.5%	96.8%	94.8%
2022	89.2%	97.1%	93.2%	90.7%	80.0%	76.0%	91.2%	87.7%	91.6%	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
2024	79.8%	80.6%	84.4%	88.2%	79.2%	72.1%	85.8%	88.4%	88.5%	88.1%	89.2%	85.9%
2025	87.3%	87.4%	84.6%	89.2%	81.7%	M	M	M	M	M	M	M