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 (USW00027502) 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
2005	M	M	M	M	M	M	M	M	M	M	M	M
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	0.01	M	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	M	M	M	M	M
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	0.01	0.04	0.04	0.10	0.05	0.98	0.74	0.09	0.00	0.09	0.00
2011	0.00	0.04	0.03	0.00	0.00	0.11	0.64	0.06	0.05	0.01	0.00	0.00
2012	0.00	0.00	0.00	0.00	0.09	0.27	0.48	1.10	1.14	0.06	0.00	0.00
2013	0.01	0.00	0.00	0.00	0.15	1.02	1.72	1.98	1.09	0.09	0.09	0.17
2014	M	M	M	M	0.34	0.63	0.68	0.21	0.13	0.02	M	M
2015	M	M	M	0.04	0.23	0.22	0.16	0.90	0.01	0.01	M	M
2016	M	M	M	M	0.48	0.09	0.28	1.59	0.26	0.18	0.20	0.00
2017	0.01	M	0.00	M	0.32	0.19	1.03	1.71	0.29	0.21	0.00	0.00
2018	0.02	0.02	0.00	M	M	M	M	M	M	M	M	M
2019	0.00	0.00	0.02	0.00	0.05	0.60	2.39	2.37	0.35	0.14	0.00	0.00
2020	0.00	0.00	0.01	0.01	0.00	0.42	1.40	0.60	0.56	0.09	0.00	M
2021	M	M	M	M	M	0.27	1.60	0.70	0.32	0.05	0.00	0.02
2022	0.00	0.00	0.00	0.00	0.17	0.61	0.70	0.88	0.14	0.05	0.13	0.14
2023	0.00	0.00	0.01	0.00	0.09	0.56	1.28	1.27	0.14	0.07	0.01	1.01
2024	0.00	0.00	0.00	0.00	0.08	0.26	0.48	0.10	0.21	0.03	0.00	0.00
2025	0.00	0.03	0.00	0.00	0.01	0.09	0.57	1.04	0.12	0.21	0.00	0.00
2026	0.04	0.00	0.01	0.01	0.00	0.11	0.78	0.98	M	M	M	M
NCEI Climatology	0.14	0.22	0.18	0.18	0.28	0.43	0.98	1.09	0.77	0.54	0.37	0.22

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	16.1	M	M	24.7	M	M
2006	9.7	12.7	13.6	8.9	9.3	9.2	13.0	8.0	5.9	5.7	11.3	6.9
2007	6.4	5.3	6.6	12.5	11.2	14.1	12.3	10.9	13.9	13.8	11.0	8.2
2008	8.9	8.5	10.2	11.4	14.6	10.7	12.7	10.7	10.7	10.0	12.4	10.3
2009	8.6	12.3	11.5	11.5	10.8	14.7	13.2	12.3	10.9	11.8	10.0	9.6
2010	10.3	16.2	11.3	11.7	14.6	15.5	11.6	12.4	11.1	16.7	12.5	10.9
2011	10.8	16.7	9.5	12.5	10.3	15.2	11.6	11.0	12.6	13.4	9.9	12.6
2012	11.7	11.9	8.8	12.2	10.6	13.1	10.3	10.9	10.7	11.6	9.9	10.2
2013	16.0	10.6	14.9	12.1	12.2	11.0	12.4	9.7	12.2	10.3	13.7	11.7
2014	16.3	12.0	9.6	10.1	14.1	10.7	11.8	13.9	13.6	9.7	13.2	11.9
2015	13.9	15.1	12.2	12.1	11.7	10.2	11.6	12.0	11.8	14.0	11.9	10.9
2016	13.4	10.6	13.8	18.4	9.3	11.8	13.0	12.8	10.5	12.9	9.4	11.8
2017	14.4	13.1	13.2	14.8	14.1	16.3	12.1	12.1	11.7	12.5	16.0	18.8
2018	13.2	13.6	15.8	M	M	M	10.4	18.6	10.2	M	M	M
2019	15.3	16.3	15.7	13.2	10.5	8.3	11.3	11.4	8.3	13.1	12.7	10.7
2020	10.5	7.8	13.5	12.2	13.5	12.2	12.3	10.3	11.6	11.8	14.7	16.6
2021	12.4	8.0	12.3	10.9	12.5	13.2	11.5	12.3	11.8	10.6	9.4	14.7
2022	9.0	10.9	13.5	13.3	12.8	12.5	11.3	12.0	13.4	12.8	13.1	11.4
2023	16.4	9.5	12.9	10.7	11.8	12.4	9.5	12.5	10.3	11.7	16.2	6.7
2024	17.4	14.6	11.5	16.3	11.6	11.3	13.2	12.0	9.0	10.7	16.8	11.6
2025	11.9	14.5	13.7	14.6	13.0	10.2	11.2	10.9	10.1	10.9	8.3	10.3
2026	10.6	10.1	2.1	11.5	15.1	10.8	11.7	9.4	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
2005	M	M	M	M	M	M	46.40	M	24.80	20.43	-2.20	-13.90
2006	-16.41	-7.43	-19.69	-6.81	25.45	42.07	45.88	43.47	34.94	26.58	4.99	-1.49
2007	-12.99	-3.66	-13.23	11.33	22.54	50.62	61.82	58.17	44.37	23.07	13.03	0.46
2008	-15.03	-13.85	-15.94	13.58	27.62	51.20	55.08	44.74	36.21	22.06	4.84	4.96
2009	-10.32	-10.52	-12.67	12.42	33.69	48.15	60.51	49.79	37.39	27.06	-0.05	0.65
2010	-13.11	-8.01	-8.34	14.30	23.60	46.28	55.75	54.17	45.28	24.14	15.38	-4.55
2011	-2.44	2.47	0.65	3.80	27.54	48.28	55.88	51.44	39.73	24.65	0.24	-8.85
2012	-20.08	-9.38	-22.88	6.25	25.67	49.92	60.35	53.65	37.48	29.58	6.66	-9.20
2013	-10.65	-21.40	-6.36	3.46	28.25	53.81	59.17	46.81	35.01	27.31	11.85	1.46
2014	-2.71	-2.57	-1.25	11.79	32.31	43.67	52.39	48.10	37.27	24.62	13.04	-4.30
2015	-7.55	-0.53	-7.25	11.50	36.15	54.33	53.62	46.14	35.08	23.03	7.14	-8.68
2016	2.54	-0.78	-4.66	13.93	38.94	52.78	59.15	48.57	36.75	31.70	13.76	-1.13
2017	2.73	-4.40	-1.35	9.72	30.49	49.74	60.78	48.17	40.28	27.56	17.95	9.86
2018	-2.92	11.02	4.67	12.20	26.60	41.45	59.36	41.90	40.20	-5.80	-1.60	1.40
2019	-4.53	12.49	13.08	12.73	30.55	51.04	60.01	47.58	45.15	29.94	16.42	-0.05
2020	-9.94	-22.78	4.39	18.00	29.59	49.38	50.81	50.21	38.20	26.23	14.59	-3.40
2021	-5.70	-19.06	-4.57	11.30	27.22	49.11	57.43	45.57	37.86	24.32	5.38	-3.71
2022	-12.92	-15.51	-1.45	9.10	29.96	50.01	54.41	48.17	41.05	26.51	18.59	7.90
2023	-2.81	-17.31	4.81	2.98	33.12	51.27	63.77	51.92	41.02	28.29	17.92	3.73
2024	-0.86	-3.77	-3.45	12.68	28.64	48.59	52.87	50.95	42.55	27.93	14.18	-3.18
2025	-2.39	-2.46	-0.21	10.21	25.03	51.73	60.14	48.67	39.00	26.06	15.36	1.50
2026	-9.29	-21.90	1.32	10.21	26.09	46.11	55.39	64.16	M	M	M	M
NCEI Climatology	-4.11	-4.40	-2.70	11.70	27.99	42.11	48.80	45.60	38.20	26.70	12.60	0.59

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	40.23	M	23.00	19.91	-3.10	-17.00
2006	-31.73	-14.76	-25.21	-9.51	22.85	38.93	41.31	39.36	33.65	25.29	0.68	-11.81
2007	-25.11	-20.39	-25.96	-0.45	12.49	34.96	43.48	42.81	33.15	16.18	2.16	-13.73
2008	-29.57	-27.56	-27.92	-2.28	19.15	36.57	41.03	7.50	27.86	11.87	-6.26	-8.84
2009	-25.67	-26.45	-28.95	-4.16	22.01	34.16	43.99	37.52	30.11	17.41	-10.50	-15.08
2010	-28.80	-19.56	-21.85	-0.09	15.55	32.07	41.12	40.73	32.56	15.68	3.67	-21.84
2011	-17.78	-14.79	-14.84	-12.79	17.18	32.78	41.89	38.70	32.62	15.11	-12.85	-20.50
2012	-32.79	-22.19	-34.80	-4.40	16.74	36.44	42.99	42.24	30.56	19.35	-5.99	-20.86
2013	-20.10	-29.81	-17.77	-11.35	16.47	37.97	45.97	37.49	26.64	16.88	-2.87	-10.87
2014	-12.95	-16.65	-13.37	-4.25	24.05	33.13	39.97	35.59	30.56	18.22	1.88	-14.91
2015	-18.55	-14.22	-19.74	-2.69	25.25	39.11	40.81	36.59	27.39	14.08	-4.86	-19.78
2016	-9.31	-10.87	-15.06	5.53	25.69	35.07	42.89	36.24	31.84	23.57	2.82	-13.73
2017	-12.55	-17.98	-18.25	-4.32	22.92	34.78	45.57	37.97	31.51	16.53	5.15	-1.85
2018	-16.98	-5.26	-6.37	12.20	26.60	40.70	52.70	38.75	35.40	-5.80	-2.50	1.40
2019	-13.52	-1.83	-0.51	-1.72	22.32	36.97	47.71	40.55	36.19	19.79	5.62	-12.30
2020	-20.32	-35.67	-14.17	1.33	17.29	35.41	36.99	39.63	30.93	18.46	3.07	-13.18
2021	-15.80	-31.99	-20.11	-5.08	18.15	35.35	43.78	36.04	29.50	15.54	-5.89	-18.71
2022	-25.64	-29.21	-15.86	-8.07	20.56	36.47	40.90	37.48	32.43	15.71	6.42	-6.42
2023	-11.95	-27.99	-12.20	-13.21	22.64	36.04	49.66	41.96	33.64	18.56	7.94	-8.39
2024	-14.61	-15.08	-17.54	-2.31	19.02	34.49	40.78	39.65	33.63	19.73	3.06	-12.53
2025	-14.65	-15.94	-12.23	-2.59	13.52	35.95	43.46	37.03	31.85	16.14	4.85	-13.83
2026	-21.73	-28.82	-10.88	-4.47	16.70	32.09	40.77	48.25	M	M	M	M
NCEI Climatology	-17.80	-18.31	-17.20	-2.49	18.49	31.10	35.60	35.10	30.20	16.80	-0.10	-12.20

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	43.31	M	23.90	20.17	-2.65	-15.45
2006	-24.07	-11.09	-22.45	-8.16	24.15	40.50	43.60	41.41	34.30	25.94	2.83	-6.65
2007	-19.05	-12.02	-19.59	5.44	17.52	42.79	52.65	50.49	38.76	19.62	7.59	-6.63
2008	-22.30	-20.70	-21.93	5.65	23.39	43.89	48.05	26.12	32.04	16.96	-0.71	-1.94
2009	-18.00	-18.48	-20.81	4.13	27.85	41.16	52.25	43.65	33.75	22.24	-5.28	-7.22
2010	-20.95	-13.79	-15.10	7.10	19.57	39.17	48.44	47.45	38.92	19.91	9.53	-13.20
2011	-10.11	-6.16	-7.09	-4.49	22.36	40.53	48.89	45.07	36.17	19.88	-6.31	-14.67
2012	-26.44	-15.78	-28.84	0.92	21.21	43.18	51.67	47.94	34.02	24.47	0.33	-15.03
2013	-15.37	-25.61	-12.07	-3.95	22.36	45.89	52.57	42.15	30.82	22.10	4.49	-4.70
2014	-7.83	-9.61	-7.31	3.77	28.18	38.40	46.18	41.84	33.91	21.42	7.46	-9.61
2015	-13.05	-7.38	-13.50	4.40	30.70	46.72	47.22	41.37	31.23	18.56	1.14	-14.23
2016	-3.38	-5.83	-9.86	9.73	32.32	43.93	51.02	42.41	34.30	27.63	8.29	-7.43
2017	-4.91	-11.19	-9.80	2.70	26.70	42.26	53.18	43.07	35.90	22.05	11.55	4.00
2018	-9.95	2.88	-0.85	12.20	26.60	41.08	56.03	40.32	37.80	-5.80	-2.05	1.40
2019	-9.03	5.33	6.29	5.51	26.44	44.00	53.86	44.06	40.67	24.86	11.02	-6.17
2020	-15.13	-29.23	-4.89	9.67	23.44	42.39	43.90	44.92	34.57	22.35	8.83	-8.29
2021	-10.75	-25.53	-12.34	3.11	22.68	42.23	50.61	40.81	33.68	19.93	-0.25	-11.21
2022	-19.28	-22.36	-8.65	0.52	25.26	43.24	47.66	42.83	36.74	21.11	12.50	0.74
2023	-7.38	-22.65	-3.69	-5.12	27.88	43.66	56.72	46.94	37.33	23.43	12.93	-2.33
2024	-7.73	-9.42	-10.49	5.18	23.83	41.54	46.83	45.30	38.09	23.83	8.62	-7.85
2025	-8.52	-9.20	-6.22	3.81	19.27	43.84	51.80	42.85	35.42	21.10	10.11	-6.16
2026	-15.51	-25.36	-4.78	2.87	21.39	39.10	48.08	56.21	M	M	M	M
NCEI Climatology	-10.95	-11.35	-9.95	4.60	23.24	36.60	42.20	40.35	34.20	21.75	6.25	-5.81

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
2005	M	M	M	M	M	M	83.3%	M	M	89.5%	M	M
2006	75.6%	78.4%	74.6%	80.9%	85.3%	86.8%	86.1%	91.6%	99.2%	96.6%	87.9%	81.2%
2007	77.3%	77.8%	75.9%	85.0%	87.9%	80.3%	75.9%	72.1%	81.4%	88.9%	86.9%	81.3%
2008	75.2%	75.0%	73.7%	82.6%	86.2%	79.8%	79.9%	85.2%	88.6%	87.7%	82.5%	80.3%
2009	74.2%	75.1%	73.1%	81.6%	83.5%	83.2%	76.7%	84.0%	87.2%	89.1%	81.1%	80.5%
2010	75.3%	76.6%	75.0%	85.1%	89.8%	84.9%	80.9%	86.5%	88.7%	88.8%	86.4%	77.9%
2011	80.6%	79.1%	79.3%	79.8%	87.0%	81.3%	82.9%	87.8%	88.7%	89.0%	79.8%	76.4%
2012	72.7%	79.2%	69.7%	82.3%	87.0%	80.2%	77.9%	84.0%	88.4%	87.9%	82.7%	76.0%
2013	76.0%	72.7%	77.8%	80.7%	85.7%	77.6%	79.8%	88.9%	90.8%	95.5%	83.8%	80.0%
2014	79.0%	78.6%	77.1%	83.9%	88.4%	90.0%	86.1%	91.0%	93.8%	93.9%	87.8%	79.5%
2015	77.5%	79.9%	77.3%	86.8%	90.9%	78.6%	84.5%	89.2%	92.1%	94.3%	85.6%	77.1%
2016	82.7%	81.2%	78.7%	89.3%	91.0%	82.6%	80.3%	85.7%	86.0%	91.1%	86.2%	78.4%
2017	81.7%	78.9%	79.7%	82.9%	88.4%	79.5%	81.1%	88.7%	90.2%	90.6%	87.3%	85.2%
2018	81.5%	86.5%	83.4%	M	M	M	88.3%	90.4%	94.2%	M	M	M
2019	82.3%	84.4%	84.6%	83.7%	90.0%	80.2%	83.5%	88.3%	89.4%	90.8%	86.5%	82.8%
2020	78.9%	78.0%	82.1%	84.9%	88.0%	84.2%	88.3%	92.0%	93.6%	91.9%	88.2%	83.2%
2021	81.3%	77.4%	80.1%	82.3%	88.7%	84.9%	86.4%	87.8%	92.6%	93.4%	85.3%	81.5%
2022	78.4%	80.1%	81.6%	82.8%	88.7%	81.7%	86.8%	90.0%	93.0%	90.0%	87.1%	84.6%
2023	82.5%	76.3%	82.0%	79.4%	87.1%	83.9%	85.7%	89.6%	93.3%	93.2%	90.4%	85.1%
2024	82.8%	81.8%	80.4%	84.8%	87.4%	85.5%	87.9%	88.9%	93.2%	92.1%	87.4%	82.5%
2025	81.5%	81.2%	82.9%	85.2%	87.7%	80.6%	83.6%	88.1%	92.8%	93.6%	91.9%	85.3%
2026	81.9%	79.1%	85.0%	84.6%	90.3%	82.8%	83.3%	84.9%	M	M	M	M