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 () 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
2000	M	M	M	M	0.00	M	M	M	M	M	M	M
2001	0.00	0.00	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	M	M	M	M
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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2008	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2009	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2011	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2012	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	0.00	0.00	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	M	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
2025	M	M	M	M	M	M	M	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	13.0	13.2	M	14.2	13.0	14.4	11.9	11.8	11.8	13.1	19.9	13.7
2002	9.5	10.7	10.9	13.1	12.2	13.1	10.2	13.0	14.5	15.7	14.3	17.3
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	7.1	M	M	M	M	M	M	M	M	M	M
2005	7.9	13.9	12.6	16.2	12.5	10.4	11.5	10.2	15.2	16.3	17.9	15.3
2006	11.8	14.2	12.9	15.2	14.6	12.9	10.9	9.5	12.7	15.6	15.6	17.6
2007	14.6	15.7	16.7	12.1	15.0	12.5	13.1	11.6	14.1	17.2	14.0	13.0
2008	10.8	12.9	10.8	12.2	13.6	11.8	14.6	13.6	15.7	17.1	17.1	14.2
2009	15.1	10.7	13.7	12.4	14.6	13.6	10.7	13.4	15.7	16.9	16.5	13.5
2010	16.9	11.8	12.6	11.6	12.1	11.9	11.7	14.5	13.9	16.3	17.6	16.6
2011	15.0	10.6	12.2	11.7	11.6	11.5	13.0	13.7	14.0	14.5	16.0	16.6
2012	14.9	13.3	16.7	12.3	14.0	12.9	13.1	9.9	15.4	15.6	19.5	11.9
2013	13.0	9.8	12.7	12.5	12.8	11.1	11.7	12.1	15.4	13.4	15.6	12.7
2014	12.1	7.8	10.1	11.3	11.2	12.0	11.6	9.7	15.1	17.0	14.8	16.6
2015	10.4	8.6	10.8	13.8	14.7	11.1	14.6	14.3	14.5	18.8	16.6	14.5
2016	13.8	13.2	16.0	16.3	12.2	13.2	14.7	15.3	16.4	13.0	13.7	14.4
2017	14.9	9.0	11.3	12.4	10.3	13.0	12.8	11.5	14.6	18.5	15.4	14.0
2018	13.7	12.2	11.8	13.8	15.3	12.6	11.3	14.4	15.0	12.9	12.0	14.1
2019	11.4	12.1	13.7	14.8	12.5	15.7	13.7	19.8	12.5	13.6	13.9	16.6
2020	11.5	9.7	12.7	14.3	14.9	12.2	10.0	10.1	15.4	13.4	18.0	16.9
2021	13.4	14.4	14.7	15.7	14.9	14.9	10.9	15.0	14.9	11.8	14.5	16.6
2022	13.2	11.5	12.2	12.0	17.5	12.4	9.7	12.0	14.6	17.8	15.4	11.6
2023	14.2	10.6	12.7	15.8	16.0	11.1	13.0	11.1	12.3	14.7	17.8	15.7
2024	17.2	9.4	13.3	14.3	14.1	11.5	13.0	14.2	12.5	16.1	18.5	24.3
2025	14.7	14.1	12.2	13.9	15.5	11.9	12.7	10.6	13.3	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	-7.00	-11.80	M	6.80	34.70	42.80	M	M	M	M	M	M
2001	-9.73	-7.53	M	16.83	34.44	42.16	47.97	49.47	41.66	33.29	23.96	18.01
2002	-10.21	-11.52	-5.88	16.98	29.39	40.16	49.02	46.27	42.02	34.50	22.34	12.97
2003	-0.63	-11.07	-2.43	18.14	35.60	40.81	51.59	50.70	44.30	34.79	26.24	16.67
2004	M	3.20	M	M	M	42.08	45.05	46.53	39.89	33.80	22.84	2.90
2005	-10.93	-2.96	8.89	24.14	34.79	43.46	47.30	M	M	35.20	25.77	11.95
2006	-0.82	3.33	10.56	21.20	32.15	39.40	47.96	42.57	41.90	33.80	24.60	16.52
2007	3.73	6.29	3.25	20.12	26.94	41.42	51.38	50.23	40.34	33.45	21.63	4.05
2008	-4.90	-6.83	1.36	21.61	34.82	42.81	50.92	52.54	40.20	34.25	23.00	4.63
2009	-1.43	0.94	5.21	19.03	26.83	40.21	51.88	46.06	41.53	30.89	25.24	19.11
2010	3.97	10.43	10.38	25.54	33.43	41.89	51.14	54.62	45.68	38.48	31.79	26.27
2011	7.03	-4.62	-0.12	12.99	27.73	40.72	49.90	47.07	42.06	33.18	24.93	11.08
2012	-1.02	0.90	4.94	20.94	32.37	46.69	49.66	51.18	43.70	33.16	24.37	13.52
2013	-1.33	-1.24	12.98	19.18	28.66	37.76	47.70	50.33	40.26	34.32	21.14	5.00
2014	2.47	-5.88	-1.06	12.33	33.94	46.91	48.71	55.79	39.76	32.72	21.74	7.81
2015	-10.55	-13.73	-1.94	19.13	31.04	40.52	46.56	47.02	40.87	29.69	21.39	5.53
2016	1.54	-4.26	1.72	16.57	32.78	39.75	46.40	51.20	42.25	28.76	25.49	9.80
2017	2.98	-3.83	5.60	15.87	33.10	42.00	51.59	47.65	42.94	33.80	22.06	11.30
2018	-7.53	-12.31	12.49	16.74	24.20	36.73	44.19	48.06	38.20	27.97	21.32	10.23
2019	-3.75	-1.30	3.14	19.79	33.92	41.22	50.07	45.25	45.37	35.78	25.82	15.51
2020	-0.65	-6.92	4.72	17.72	29.91	39.20	52.70	51.97	42.50	32.64	22.32	10.94
2021	10.11	5.71	4.82	22.10	32.00	39.14	52.15	50.06	40.94	36.65	25.34	15.28
2022	-9.34	-10.49	5.17	17.60	30.03	45.59	51.04	51.60	47.54	33.94	22.01	17.17
2023	-4.62	-12.31	10.69	20.69	32.37	45.05	49.07	52.20	43.00	34.94	26.32	18.17
2024	5.18	-0.62	9.22	22.73	30.20	41.72	48.52	47.77	44.81	36.90	29.70	19.61
2025	14.35	2.46	3.20	19.67	28.59	38.75	48.71	45.93	41.56	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	-7.60	-12.70	M	6.80	33.80	41.00	M	M	M	M	M	M
2001	-16.47	-15.20	M	10.08	29.56	35.79	43.03	44.20	36.86	30.52	20.36	11.33
2002	-16.77	-16.99	-14.49	9.02	25.15	35.24	42.23	41.93	37.16	30.03	17.06	8.92
2003	-6.10	-16.99	-8.35	12.44	29.27	35.21	45.02	43.90	39.50	31.59	21.38	12.45
2004	M	-14.80	M	M	M	41.72	44.30	46.27	39.62	33.50	22.67	1.70
2005	-18.60	-8.98	1.75	18.56	29.70	36.92	40.59	M	M	32.07	21.41	7.37
2006	-6.28	1.27	9.09	19.82	31.10	38.30	47.00	42.57	40.70	33.80	24.60	16.16
2007	-1.14	0.22	-4.30	13.45	22.41	35.50	42.11	44.03	36.11	29.37	16.15	-2.34
2008	-11.88	-12.77	-7.88	15.86	30.92	36.13	45.77	45.24	36.80	30.48	18.47	-0.35
2009	-5.22	-6.01	-2.80	11.96	21.99	34.95	43.58	40.65	36.38	28.07	20.73	14.42
2010	-1.30	5.34	3.54	18.62	28.55	36.58	45.14	46.73	41.61	35.66	28.78	22.46
2011	3.04	-10.75	-5.73	6.14	22.72	35.89	44.10	42.17	37.21	30.63	21.07	6.88
2012	-6.42	-3.75	-0.79	14.60	28.40	39.85	42.97	45.22	39.14	30.43	21.20	7.63
2013	-6.33	-7.79	6.32	13.18	24.16	33.73	42.01	43.07	36.28	30.37	18.02	0.50
2014	-2.47	-12.18	-9.16	5.80	28.54	39.01	43.31	46.79	35.91	30.50	16.34	4.21
2015	-17.54	-21.33	-9.46	12.33	26.79	34.88	40.14	40.58	35.47	25.70	18.34	1.18
2016	-4.07	-9.66	-4.26	10.46	27.68	35.44	41.15	45.50	37.54	25.04	20.09	6.60
2017	-0.51	-9.14	-1.53	8.74	28.24	36.20	43.70	42.66	38.02	31.21	17.31	7.78
2018	-11.92	-17.85	7.09	8.60	19.88	31.87	38.79	42.38	34.60	24.18	17.30	6.57
2019	-9.90	-6.76	-3.13	13.81	29.50	36.95	43.20	41.65	40.29	33.17	21.92	9.59
2020	-6.54	-11.63	-0.54	13.70	27.24	34.70	46.58	47.45	38.18	28.63	18.47	5.96
2021	4.01	1.21	-2.80	18.68	28.64	34.40	44.37	44.96	37.88	34.44	22.88	11.15
2022	-13.31	-16.28	1.81	13.83	26.25	39.76	45.50	45.93	41.84	31.93	18.22	12.88
2023	-8.97	-17.89	5.52	17.79	28.52	40.36	43.60	46.13	38.07	32.18	23.55	14.00
2024	1.16	-8.28	5.42	17.47	27.53	36.54	42.74	43.36	40.31	33.66	26.72	17.88
2025	11.62	-0.97	-1.62	15.53	24.48	36.42	43.31	42.02	39.09	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	-7.30	-12.25	M	6.80	34.25	41.90	M	M	M	M	M	M
2001	-13.10	-11.37	M	13.45	32.00	38.97	45.50	46.83	39.26	31.90	22.16	14.67
2002	-13.49	-14.25	-10.18	13.00	27.27	37.70	45.62	44.10	39.59	32.26	19.70	10.95
2003	-3.36	-14.03	-5.39	15.29	32.43	38.01	48.31	47.30	41.90	33.19	23.81	14.56
2004	M	-5.80	M	M	M	41.90	44.68	46.40	39.75	33.65	22.75	2.30
2005	-14.77	-5.97	5.32	21.35	32.25	40.19	43.95	M	M	33.63	23.59	9.66
2006	-3.55	2.30	9.83	20.51	31.62	38.85	47.48	42.57	41.30	33.80	24.60	16.34
2007	1.29	3.26	-0.53	16.79	24.67	38.46	46.75	47.13	38.23	31.41	18.89	0.86
2008	-8.39	-9.80	-3.26	18.73	32.87	39.47	48.34	48.89	38.50	32.37	20.73	2.14
2009	-3.32	-2.53	1.20	15.50	24.41	37.58	47.73	43.36	38.95	29.48	22.98	16.76
2010	1.34	7.88	6.96	22.08	30.99	39.23	48.14	50.67	43.64	37.07	30.29	24.37
2011	5.03	-7.68	-2.92	9.56	25.22	38.30	47.00	44.62	39.63	31.91	23.00	8.98
2012	-3.72	-1.42	2.08	17.77	30.39	43.27	46.31	48.20	41.42	31.80	22.78	10.57
2013	-3.83	-4.51	9.65	16.18	26.41	35.74	44.85	46.70	38.27	32.35	19.58	2.75
2014	0.00	-9.03	-5.11	9.07	31.24	42.96	46.01	51.29	37.83	31.61	19.04	6.01
2015	-14.04	-17.53	-5.70	15.73	28.91	37.70	43.35	43.80	38.17	27.69	19.87	3.35
2016	-1.27	-6.96	-1.27	13.52	30.23	37.60	43.77	48.35	39.89	26.90	22.79	8.20
2017	1.23	-6.49	2.04	12.30	30.67	39.10	47.65	45.15	40.48	32.50	19.69	9.54
2018	-9.72	-15.08	9.79	12.67	22.04	34.30	41.49	45.22	36.40	26.07	19.31	8.40
2019	-6.82	-4.03	0.01	16.80	31.71	39.09	46.63	43.45	42.83	34.47	23.87	12.55
2020	-3.60	-9.28	2.09	15.71	28.57	36.95	49.64	49.71	40.34	30.64	20.39	8.45
2021	7.06	3.46	1.01	20.39	30.32	36.77	48.26	47.51	39.41	35.54	24.11	13.22
2022	-11.32	-13.39	3.49	15.71	28.14	42.68	48.27	48.77	44.69	32.94	20.11	15.02
2023	-6.79	-15.10	8.11	19.24	30.45	42.70	46.33	49.17	40.53	33.56	24.94	16.09
2024	3.17	-4.45	7.32	20.10	28.87	39.13	45.63	45.56	42.56	35.28	28.21	18.74
2025	12.98	0.75	0.79	17.60	26.54	37.59	46.01	43.97	40.33	M	M	M

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
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	74.9%	75.5%	M	81.3%	86.5%	81.1%	85.3%	86.5%	85.0%	86.2%	78.9%	83.0%
2002	72.1%	71.1%	68.8%	76.3%	82.4%	79.8%	77.9%	86.7%	85.5%	84.4%	79.3%	78.2%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	79.0%	M	M	M	M	M	M	M	M	M	M
2005	74.3%	75.8%	80.2%	87.1%	83.5%	79.3%	87.4%	79.0%	83.8%	87.6%	83.0%	79.9%
2006	77.3%	79.5%	81.5%	85.6%	90.5%	84.0%	75.1%	87.0%	83.7%	89.0%	82.9%	81.1%
2007	82.3%	82.6%	75.2%	81.6%	83.1%	83.6%	85.5%	83.7%	81.9%	79.8%	83.9%	78.1%
2008	77.3%	74.9%	78.2%	84.5%	90.1%	85.5%	82.5%	79.3%	85.0%	86.6%	79.8%	79.1%
2009	78.8%	77.5%	80.1%	83.3%	84.3%	86.6%	72.7%	90.3%	82.7%	84.9%	82.9%	85.5%
2010	80.9%	86.1%	82.8%	88.9%	85.8%	82.6%	84.6%	86.6%	83.3%	86.7%	86.8%	89.8%
2011	81.0%	73.7%	74.5%	78.9%	82.2%	85.3%	81.0%	89.9%	84.5%	85.3%	84.8%	79.1%
2012	80.0%	79.6%	79.8%	84.1%	89.9%	82.3%	87.3%	87.3%	87.3%	82.9%	82.9%	84.2%
2013	79.4%	79.8%	86.9%	85.9%	86.3%	82.7%	84.8%	81.4%	85.2%	86.7%	81.0%	80.3%
2014	82.2%	77.2%	77.1%	79.0%	82.8%	75.5%	85.4%	77.9%	81.8%	89.1%	81.8%	79.9%
2015	75.2%	73.7%	76.2%	82.3%	83.6%	88.9%	85.2%	84.8%	87.4%	79.3%	81.6%	78.1%
2016	78.8%	74.6%	75.4%	80.4%	80.7%	81.4%	84.0%	81.5%	83.6%	79.7%	80.8%	75.4%
2017	75.9%	74.4%	77.5%	76.3%	82.7%	81.8%	79.5%	86.4%	84.1%	82.9%	75.2%	75.7%
2018	69.6%	65.6%	79.7%	73.2%	75.3%	82.8%	80.3%	77.7%	79.8%	77.2%	79.6%	76.5%
2019	71.0%	72.4%	70.5%	74.5%	87.2%	82.0%	82.8%	91.7%	81.6%	83.9%	80.6%	79.0%
2020	76.5%	75.6%	76.8%	81.5%	81.3%	81.3%	85.6%	84.2%	85.5%	85.9%	77.0%	81.3%
2021	85.0%	81.9%	77.3%	87.5%	87.2%	85.0%	77.7%	84.4%	84.7%	84.8%	77.6%	77.0%
2022	73.9%	71.4%	73.7%	75.7%	84.4%	71.1%	83.6%	81.7%	81.7%	79.8%	77.9%	84.4%
2023	73.0%	70.9%	84.1%	84.6%	84.4%	70.1%	87.2%	81.2%	84.2%	84.8%	86.3%	80.3%
2024	80.4%	76.0%	79.9%	81.8%	84.0%	84.8%	83.6%	85.8%	88.2%	84.5%	86.9%	80.8%
2025	85.1%	78.7%	76.2%	84.0%	84.6%	87.4%	83.3%	84.1%	87.3%	M	M	M