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
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	0.00	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	0.16	0.01	0.33	0.10	0.00	0.02	2.13	0.04	0.13	0.60	0.15
2011	0.07	0.45	0.05	0.49	0.22	0.36	0.00	0.05	1.10	1.55	0.25	0.00
2012	0.05	0.04	0.00	0.00	0.40	0.92	0.00	2.62	1.22	0.07	0.33	0.53
2013	0.46	0.01	0.07	0.00	0.40	0.41	0.46	0.74	0.14	0.81	1.02	0.09
2014	0.22	0.27	0.10	0.49	M	M	0.10	0.89	0.64	0.85	0.55	0.46
2015	0.12	0.33	0.11	0.14	0.37	0.09	0.22	1.05	1.43	0.56	1.39	0.20
2016	0.10	0.03	0.11	0.12	0.55	2.03	1.98	3.43	2.49	0.96	0.07	1.14
2017	0.89	0.28	M	0.13	1.05	2.13	2.52	3.43	3.75	5.61	1.12	0.23
2018	0.08	0.74	0.37	1.04	0.63	1.74	1.55	4.51	2.07	1.48	0.61	0.55
2019	0.07	1.51	0.27	0.07	0.11	0.16	1.58	2.66	3.42	0.62	1.70	0.04
2020	0.09	0.97	0.01	0.78	0.74	2.65	1.43	1.99	3.37	1.48	2.31	0.45
2021	0.50	0.10	0.92	0.79	0.37	2.17	5.95	4.39	3.84	3.08	0.02	3.35
2022	0.40	0.84	0.25	0.05	0.81	0.00	1.94	3.43	3.29	1.77	1.31	0.42
2023	0.48	1.20	1.48	M	0.46	1.84	5.33	3.97	2.53	0.56	1.72	0.65
2024	0.11	1.14	M	0.00	0.94	0.37	4.36	6.95	2.23	0.21	M	M
2025	M	M	M	M	M	M	M	M	M	0.00	0.30	0.24
2026	0.06	0.70	0.00	1.69	0.73	0.52	3.70	0.00	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
2005	M	M	M	M	M	M	M	M	10.9	6.3	5.4	6.1
2006	4.1	9.2	9.6	5.5	2.3	4.4	8.9	7.9	3.8	9.1	6.1	1.2
2007	5.1	6.7	6.1	5.4	4.9	4.8	4.3	4.3	6.4	5.1	5.7	4.8
2008	4.3	6.2	5.1	5.5	5.4	4.7	5.9	3.3	4.8	4.5	2.4	7.7
2009	5.6	4.7	7.6	5.4	4.8	5.2	4.9	4.9	4.0	7.0	4.8	6.7
2010	7.0	5.7	5.6	6.3	5.3	5.5	5.6	5.1	6.6	5.0	5.6	6.0
2011	8.0	5.1	7.0	2.7	0.0	1.8	5.8	6.3	5.3	5.2	5.3	5.2
2012	4.0	7.2	5.0	3.9	4.6	4.5	5.3	4.9	4.8	7.3	7.5	5.8
2013	7.4	5.3	5.2	5.2	4.6	4.5	4.9	3.8	4.3	5.8	4.3	5.2
2014	5.8	6.7	5.1	3.8	3.7	2.4	2.2	1.8	2.5	3.4	4.6	4.7
2015	3.8	5.7	2.9	3.8	2.9	1.2	1.5	5.3	5.1	5.6	6.7	6.8
2016	8.5	4.5	6.0	4.6	4.3	5.3	5.5	4.2	5.1	6.7	5.0	5.7
2017	4.5	5.1	4.4	4.2	5.2	4.5	5.3	5.6	5.4	5.5	5.0	6.6
2018	6.6	6.5	5.1	7.1	6.0	5.5	5.0	5.4	5.0	5.4	5.5	4.4
2019	6.3	6.0	5.2	4.9	5.2	4.3	4.6	4.7	5.8	5.6	7.2	5.0
2020	4.6	5.0	5.2	5.0	4.1	4.9	3.7	3.5	5.7	4.0	6.1	6.6
2021	4.1	6.4	5.8	5.9	5.3	4.6	6.2	4.5	4.9	5.0	4.0	6.9
2022	6.9	6.3	8.0	4.8	5.4	4.4	5.1	5.3	5.4	4.7	5.4	6.9
2023	4.3	5.1	5.6	M	6.0	5.6	4.7	5.2	4.3	4.1	5.0	3.6
2024	7.2	6.5	M	2.8	5.3	4.9	5.6	6.5	4.9	6.3	5.0	7.1
2025	7.0	5.3	5.1	6.1	5.3	5.4	5.4	5.9	5.1	7.2	5.2	6.2
2026	5.3	6.3	5.8	5.6	5.8	5.3	5.5	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
2005	M	M	M	M	M	M	M	M	38.80	34.57	10.01	17.57
2006	-1.57	20.01	9.98	20.79	46.73	52.34	56.24	54.83	45.75	39.45	17.66	7.24
2007	10.53	19.11	12.32	44.04	54.92	60.17	65.29	64.63	53.35	33.85	27.95	14.99
2008	5.05	7.66	21.41	29.36	50.03	59.54	60.08	61.87	52.82	26.25	11.63	16.39
2009	7.68	17.77	18.07	33.72	52.15	59.77	66.67	60.48	53.42	39.37	13.33	19.42
2010	8.16	19.23	15.91	34.64	56.92	61.52	61.67	59.15	55.00	35.80	23.35	8.83
2011	17.44	18.84	25.19	34.68	54.40	59.57	58.88	56.72	52.77	35.56	11.87	14.29
2012	-12.36	20.25	15.09	40.39	50.51	61.92	59.21	58.70	47.85	35.92	16.04	7.64
2013	17.39	10.58	23.03	31.24	47.68	66.63	65.32	61.08	49.89	42.47	24.83	17.16
2014	29.06	18.83	23.13	42.87	54.69	61.23	64.48	65.53	55.55	34.29	28.17	22.00
2015	12.02	22.78	28.53	40.00	56.84	68.89	65.96	55.85	48.88	40.67	28.84	15.65
2016	24.76	26.72	28.15	50.44	61.36	66.21	66.21	64.87	55.06	43.08	19.05	16.18
2017	12.29	15.73	22.20	46.09	56.45	66.29	67.56	60.85	51.95	41.14	28.68	29.33
2018	15.79	25.15	30.12	39.79	49.10	63.91	65.21	58.99	56.01	45.14	26.59	13.75
2019	15.59	31.44	36.27	38.07	54.30	67.87	68.45	61.66	53.45	40.29	24.45	9.39
2020	0.02	11.25	23.97	40.31	58.85	61.19	63.18	64.45	52.19	40.16	26.44	16.29
2021	15.59	11.19	23.32	37.59	56.98	60.05	60.51	58.61	50.12	35.93	10.79	20.69
2022	10.77	15.74	29.94	39.75	56.05	67.49	65.02	58.74	52.05	49.00	M	M
2023	12.70	15.52	27.95	M	50.90	60.23	61.98	60.68	50.59	37.70	29.10	9.27
2024	15.55	20.21	M	49.67	48.12	66.43	61.28	56.63	51.86	37.84	22.85	20.99
2025	25.34	24.22	26.88	37.26	52.84	60.63	64.01	61.07	51.48	39.69	25.43	12.10
2026	7.13	16.82	16.74	36.70	49.00	65.40	62.42	65.00	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
2005	M	M	M	M	M	M	M	M	34.00	25.88	-3.37	3.49
2006	-14.64	12.51	3.29	16.76	41.77	46.57	52.08	50.98	44.04	38.43	14.63	-7.33
2007	-4.87	4.95	-7.81	27.72	36.35	45.25	51.51	50.51	44.61	25.27	17.56	0.80
2008	-9.49	-10.81	6.43	13.28	34.05	45.47	47.04	21.88	40.09	13.68	-0.03	3.72
2009	-7.65	-2.94	1.80	15.11	31.82	44.37	49.68	43.85	37.88	30.26	-0.62	6.80
2010	-3.45	2.27	-7.06	17.24	35.70	44.12	48.83	48.19	40.37	25.92	12.76	-7.05
2011	2.48	-2.44	4.37	14.84	35.57	44.85	45.50	44.63	40.51	26.61	-4.57	0.46
2012	-30.55	4.93	-5.83	19.40	31.46	43.61	47.91	46.28	36.93	26.30	5.37	-6.56
2013	5.57	-5.84	2.28	10.81	26.38	48.06	49.97	49.01	38.29	33.29	11.41	7.27
2014	18.65	5.45	0.58	22.17	34.49	42.69	49.13	50.06	40.53	24.27	20.05	11.33
2015	-2.36	9.81	7.32	21.95	38.56	45.77	51.61	45.88	37.51	32.36	15.52	3.98
2016	16.32	10.18	12.31	29.59	40.70	46.90	51.90	51.53	40.73	30.58	6.16	3.42
2017	-2.62	-4.60	-6.62	27.66	34.09	47.76	51.00	48.04	40.13	31.68	18.24	14.52
2018	0.99	11.78	14.48	25.03	35.08	45.70	51.47	48.45	44.39	35.17	16.49	-1.98
2019	3.30	21.82	23.40	21.54	39.14	49.22	53.73	49.64	42.06	27.63	13.78	-4.83
2020	-15.62	-9.28	5.34	24.71	37.37	46.45	49.99	48.35	38.38	30.26	16.06	3.23
2021	1.51	-1.86	0.94	19.37	35.87	46.38	49.53	46.06	37.32	25.68	-5.81	7.14
2022	-4.70	2.41	14.17	23.13	34.58	44.04	51.39	46.32	42.02	39.73	M	M
2023	-0.01	-0.92	6.06	M	39.52	47.17	51.22	50.28	38.34	26.20	18.85	-5.69
2024	0.45	8.49	M	31.87	32.86	47.43	48.79	46.44	39.21	27.32	10.87	12.85
2025	15.10	9.50	7.58	22.22	36.30	45.13	51.72	49.67	38.27	31.74	14.97	-4.23
2026	-9.48	-4.82	-7.42	22.23	32.61	47.97	48.29	56.00	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
2005	M	M	M	M	M	M	M	M	36.40	30.23	3.32	10.53
2006	-8.10	16.26	6.64	18.77	44.25	49.45	54.16	52.90	44.90	38.94	16.15	-0.05
2007	2.83	12.03	2.26	35.88	45.64	52.71	58.40	57.57	48.98	29.56	22.76	7.89
2008	-2.22	-1.58	13.92	21.32	42.04	52.51	53.56	41.88	46.46	19.96	5.80	10.06
2009	0.02	7.42	9.93	24.42	41.98	52.07	58.18	52.16	45.65	34.82	6.35	13.11
2010	2.36	10.75	4.42	25.94	46.31	52.82	55.25	53.67	47.68	30.86	18.05	0.89
2011	9.96	8.20	14.78	24.76	44.99	52.21	52.19	50.67	46.64	31.09	3.65	7.37
2012	-21.46	12.59	4.63	29.89	40.99	52.76	53.56	52.49	42.39	31.11	10.71	0.54
2013	11.48	2.37	12.66	21.03	37.03	57.34	57.65	55.05	44.09	37.88	18.12	12.22
2014	23.85	12.14	11.85	32.52	44.59	51.96	56.81	57.80	48.04	29.28	24.11	16.67
2015	4.83	16.30	17.93	30.97	47.70	57.33	58.79	50.86	43.20	36.52	22.18	9.81
2016	20.54	18.45	20.23	40.02	51.03	56.55	59.05	58.20	47.90	36.83	12.60	9.80
2017	4.83	5.56	7.79	36.88	45.27	57.03	59.28	54.44	46.04	36.41	23.46	21.92
2018	8.39	18.46	22.30	32.41	42.09	54.81	58.34	53.72	50.20	40.16	21.54	5.88
2019	9.45	26.63	29.83	29.80	46.72	58.54	61.09	55.65	47.76	33.96	19.11	2.28
2020	-7.80	0.99	14.66	32.51	48.11	53.82	56.59	56.40	45.28	35.21	21.25	9.76
2021	8.55	4.66	12.13	28.48	46.43	53.22	55.02	52.34	43.72	30.80	2.49	13.92
2022	3.04	9.07	22.05	31.44	45.31	55.76	58.21	52.53	47.04	44.36	M	M
2023	6.35	7.30	17.01	M	45.21	53.70	56.60	55.48	44.46	31.95	23.98	1.79
2024	8.00	14.35	M	40.77	40.49	56.93	55.04	51.54	45.53	32.58	16.86	16.92
2025	20.22	16.86	17.23	29.74	44.57	52.88	57.87	55.37	44.88	35.72	20.20	3.94
2026	-1.18	6.00	4.66	29.47	40.81	56.68	55.35	60.50	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
2005	M	M	M	M	M	M	M	M	63.7%	84.2%	77.0%	82.2%
2006	74.4%	75.1%	80.1%	79.8%	56.0%	81.0%	88.3%	89.5%	92.0%	92.9%	91.9%	76.9%
2007	81.4%	71.3%	59.1%	70.5%	65.7%	74.1%	79.2%	82.1%	87.9%	88.6%	85.8%	79.6%
2008	79.4%	69.2%	75.3%	74.4%	68.5%	73.2%	77.0%	75.8%	84.0%	78.6%	83.6%	82.1%
2009	71.9%	81.0%	70.9%	72.6%	61.1%	72.1%	75.4%	80.1%	82.8%	79.8%	78.8%	77.8%
2010	67.0%	73.5%	62.3%	72.9%	65.0%	71.7%	82.1%	86.6%	74.9%	82.3%	86.2%	77.1%
2011	74.8%	77.7%	62.8%	71.4%	62.1%	71.9%	82.7%	84.2%	81.8%	86.2%	78.2%	84.8%
2012	68.8%	77.0%	72.0%	70.2%	64.6%	71.6%	82.0%	85.9%	82.7%	75.5%	64.5%	75.6%
2013	79.4%	76.7%	74.2%	61.5%	65.3%	68.7%	80.8%	84.7%	80.7%	87.8%	84.2%	80.1%
2014	82.6%	70.3%	69.3%	66.0%	66.7%	72.2%	77.1%	81.2%	78.8%	77.5%	80.1%	85.5%
2015	78.0%	74.8%	74.6%	72.8%	74.0%	60.8%	79.0%	85.3%	85.3%	85.7%	88.8%	82.0%
2016	76.8%	78.8%	69.0%	68.3%	68.6%	69.6%	77.3%	83.4%	83.6%	73.0%	82.9%	82.0%
2017	83.1%	80.1%	62.8%	68.6%	65.8%	69.7%	77.9%	81.3%	84.1%	90.5%	87.4%	85.0%
2018	76.3%	81.4%	81.7%	72.6%	76.5%	68.8%	79.2%	87.1%	84.4%	85.3%	87.8%	86.0%
2019	82.0%	86.4%	81.3%	69.3%	73.3%	69.4%	78.5%	82.9%	86.2%	85.0%	83.8%	79.6%
2020	75.4%	75.7%	75.0%	75.6%	66.1%	76.8%	80.1%	82.0%	81.5%	85.4%	88.2%	83.3%
2021	84.1%	76.3%	79.5%	69.1%	62.1%	79.1%	84.7%	86.6%	84.1%	87.1%	79.0%	86.7%
2022	73.6%	79.4%	67.0%	68.0%	64.5%	54.5%	79.5%	86.7%	90.4%	86.9%	M	M
2023	83.1%	83.3%	75.9%	M	76.5%	71.7%	86.3%	87.2%	87.3%	83.2%	90.9%	85.8%
2024	80.4%	83.6%	M	76.8%	72.3%	66.1%	85.4%	89.1%	85.8%	83.4%	87.2%	80.1%
2025	85.7%	78.5%	77.2%	79.5%	70.5%	74.7%	84.6%	85.8%	79.7%	87.4%	88.9%	76.1%
2026	78.8%	78.5%	62.8%	84.4%	73.6%	68.4%	81.4%	M	M	M	M	M