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 (USC00215175) 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
1997	M	M	M	M	M	M	M	M	M	M	0.00	0.01
1998	0.15	0.53	0.79	0.88	4.08	2.46	2.55	2.09	0.69	2.12	0.55	0.32
1999	0.04	0.19	1.00	1.12	3.21	2.02	2.12	3.56	2.31	0.72	0.00	0.13
2000	0.02	0.58	0.99	1.17	1.32	1.83	0.60	1.99	1.10	1.63	0.93	0.00
2001	0.04	0.20	0.00	2.33	2.65	1.32	1.04	1.03	0.76	1.51	0.54	0.66
2002	0.01	0.00	0.26	0.29	1.54	4.08	3.49	1.79	1.53	1.42	0.05	0.01
2003	0.02	0.00	0.06	0.42	1.78	2.83	2.17	4.91	1.34	1.10	0.16	0.26
2004	M	0.59	1.01	1.45	3.06	1.30	2.13	1.65	7.33	2.88	0.15	0.48
2005	0.04	0.80	0.41	2.11	4.06	3.65	1.75	2.51	0.83	2.18	1.74	0.59
2006	0.10	0.04	1.63	1.14	1.05	0.93	0.58	0.31	1.13	0.28	0.85	0.62
2007	0.03	0.15	1.01	1.19	2.92	2.32	1.65	2.89	4.66	1.95	0.11	0.25
2008	0.10	0.02	0.04	1.84	1.00	2.13	2.20	1.05	1.49	1.14	0.68	0.16
2009	0.23	0.15	1.64	0.47	1.58	0.78	2.01	1.40	0.78	0.71	0.28	0.26
2010	0.15	0.00	0.10	0.89	2.91	3.69	5.28	0.00	3.65	1.78	0.74	0.27
2011	0.44	0.14	0.05	2.85	1.65	3.75	1.39	0.00	0.00	0.34	0.40	0.12
2012	0.44	0.39	2.10	3.26	2.50	1.66	1.80	1.07	0.37	1.75	1.07	0.63
2013	1.13	0.41	1.17	1.41	0.75	0.00	0.00	0.00	0.45	2.19	0.65	0.56
2014	0.32	0.44	0.72	0.48	0.69	5.31	0.68	1.70	1.22	0.97	0.19	0.15
2015	0.25	0.13	0.38	0.35	4.10	4.07	1.20	2.38	2.32	2.09	2.80	1.07
2016	0.04	M	0.35	1.76	1.33	2.54	3.07	2.34	2.55	0.87	1.33	0.56
2017	0.50	0.56	0.42	1.01	1.15	3.43	1.51	2.44	3.12	1.40	0.69	0.44
2018	0.24	0.85	0.27	0.38	1.75	3.43	4.01	0.92	6.13	2.76	0.45	0.56
2019	0.24	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	0.91	0.81	1.32	2.20	3.15	4.21	5.90	3.46	3.71	2.66	1.57	1.26

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	13.7	4.7
1998	4.5	4.9	5.4	5.9	5.1	4.5	3.5	2.9	3.8	4.1	3.7	3.9
1999	4.0	6.2	5.2	5.3	6.9	4.8	4.0	3.6	4.1	5.5	4.7	5.5
2000	4.5	5.0	5.7	5.9	5.3	5.2	3.7	4.0	4.9	4.5	5.3	3.9
2001	5.2	5.3	5.1	6.2	5.7	4.9	4.2	3.8	3.5	5.7	5.9	6.2
2002	4.4	6.6	6.1	6.3	6.7	5.9	4.5	5.5	5.7	4.6	5.2	5.8
2003	5.7	6.1	5.9	7.3	6.2	4.2	4.3	3.6	4.8	5.1	6.3	5.3
2004	4.0	5.3	6.7	5.3	6.6	5.4	4.2	4.5	6.9	6.1	5.4	6.1
2005	M	M	M	M	M	M	M	M	M	M	M	0.0
2006	5.8	4.4	5.7	6.5	6.2	4.5	4.8	4.7	4.7	5.8	5.4	5.1
2007	5.8	6.2	7.4	6.6	8.3	6.9	5.7	6.1	7.6	6.5	7.1	5.6
2008	4.8	4.5	6.1	7.8	6.9	6.8	6.3	6.3	6.5	6.8	6.2	5.4
2009	4.4	5.3	6.7	5.7	6.6	4.9	4.7	4.5	4.1	4.7	4.8	4.2
2010	5.0	3.2	5.0	6.3	5.3	3.9	4.6	5.8	5.1	5.3	6.6	5.8
2011	5.4	7.6	6.4	6.9	7.5	6.7	4.5	4.1	4.2	5.7	6.5	6.0
2012	5.7	4.7	6.1	6.1	6.1	5.0	3.9	3.9	4.2	5.2	5.4	3.4
2013	5.4	4.2	4.2	5.9	6.4	4.5	4.1	3.6	5.2	4.7	5.5	4.2
2014	5.7	3.4	5.1	6.5	5.3	5.6	4.6	3.0	5.4	5.6	5.3	5.5
2015	5.4	5.1	5.9	6.0	5.0	3.4	4.7	4.6	4.5	4.9	5.1	4.7
2016	4.3	5.3	3.9	6.1	5.1	4.5	3.8	3.6	4.6	5.4	4.7	6.0
2017	4.1	5.3	5.1	5.3	4.9	4.0	3.2	2.3	4.2	5.6	5.3	3.9
2018	5.0	5.0	4.5	5.2	4.1	3.7	3.2	3.0	4.3	4.8	4.1	4.2
2019	3.6	3.9	4.5	4.8	4.3	3.4	2.8	3.2	4.0	5.5	4.0	4.1
2020	3.7	4.3	4.6	4.7	4.2	4.2	2.9	2.8	3.7	4.2	4.8	3.4
2021	2.8	3.9	5.2	4.1	4.4	2.9	2.2	4.1	3.2	3.5	3.8	4.1
2022	6.0	6.5	6.6	7.0	7.0	6.3	4.5	4.2	4.4	6.0	6.0	6.1
2023	4.8	6.3	6.0	6.8	5.9	3.9	3.2	3.6	4.6	5.2	6.3	5.6
2024	5.2	6.0	7.0	6.7	6.1	5.2	3.9	4.3	5.3	6.2	6.0	6.3
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
1997	M	M	M	M	M	M	M	M	M	M	16.00	31.13
1998	22.65	36.50	37.13	58.73	72.58	69.97	77.00	78.16	70.97	55.55	36.40	25.87
1999	17.16	32.18	40.42	55.70	67.23	73.23	79.32	74.48	63.10	52.35	45.83	28.57
2000	19.87	33.01	45.23	51.08	67.65	69.37	77.74	75.82	65.47	57.00	34.80	12.82
2001	26.31	16.96	35.09	51.44	66.20	74.48	79.85	79.55	67.16	52.03	46.70	28.69
2002	24.86	32.00	27.94	48.74	60.57	76.64	80.54	75.72	70.28	42.34	33.14	27.53
2003	17.14	18.66	34.89	53.79	67.72	73.99	78.52	76.14	64.29	53.14	31.59	28.61
2004	11.79	28.03	38.68	52.64	59.64	71.18	77.46	68.58	70.28	52.73	40.46	22.42
2005	14.29	28.27	35.54	57.44	60.34	73.10	78.63	74.27	69.92	54.18	36.50	22.94
2006	29.74	20.88	36.82	59.78	65.62	74.84	83.68	78.28	66.02	48.26	37.28	29.62
2007	21.37	16.00	39.26	51.62	68.29	76.52	79.32	75.72	66.98	55.52	34.10	19.86
2008	18.06	21.07	32.35	47.48	61.38	70.94	77.00	77.52	66.32	54.06	35.36	13.59
2009	13.59	23.58	34.79	51.44	62.60	70.94	72.14	72.82	73.46	44.66	44.96	17.02
2010	18.82	27.56	47.91	61.88	66.43	70.34	78.80	77.81	61.52	58.88	38.48	18.18
2011	12.78	23.64	34.38	50.00	63.99	70.88	81.47	78.97	68.30	58.77	40.22	28.75
2012	25.03	29.95	50.75	53.90	67.67	76.32	83.67	78.22	68.60	50.58	36.92	24.00
2013	18.94	22.74	32.00	41.66	63.30	72.74	77.23	78.22	71.18	51.74	33.80	9.65
2014	10.34	13.61	29.79	46.46	63.99	73.10	74.21	73.28	66.80	53.83	27.74	26.31
2015	20.21	13.87	41.29	55.82	64.98	72.26	79.61	75.72	73.04	56.45	43.64	29.21
2016	18.44	22.30	43.26	49.70	68.52	73.34	78.51	77.17	67.70	56.10	47.18	20.74
2017	21.78	30.20	36.76	53.54	63.24	74.06	79.03	74.04	68.66	54.59	32.18	16.90
2018	19.17	19.59	37.63	45.08	73.81	75.32	79.32	77.17	66.02	45.18	27.92	26.83
2019	14.67	15.01	33.05	48.92	59.99	73.52	78.86	74.45	64.76	48.43	29.24	23.17
2020	20.27	25.11	39.26	48.98	64.05	75.98	80.54	77.06	64.28	44.31	40.82	25.61
2021	24.63	15.35	45.53	51.08	67.48	80.00	81.59	79.90	72.98	60.34	38.54	25.73
2022	14.35	16.83	34.90	42.38	65.56	76.10	78.74	77.99	70.16	57.14	36.86	20.45
2023	23.58	27.50	34.96	47.00	72.88	79.10	76.83	77.46	72.80	55.05	39.62	35.66
2024	22.71	34.48	38.68	54.38	66.37	74.24	80.60	77.23	78.26	60.68	40.28	23.79
NCEI Climatology	15.70	22.32	35.60	49.30	62.90	71.91	76.80	74.80	66.01	50.90	33.90	21.20

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	12.00	15.52
1998	6.68	21.89	18.65	31.63	41.55	49.60	54.03	54.26	44.57	36.61	21.90	4.90
1999	-1.84	11.61	18.35	29.50	44.65	50.40	56.97	52.74	44.10	32.97	25.20	11.43
2000	-3.90	10.21	22.26	29.60	42.42	47.17	55.35	51.84	41.73	34.84	24.03	-8.45
2001	5.52	-4.64	13.81	34.04	42.10	50.72	55.40	52.67	42.74	32.41	29.78	12.95
2002	4.13	10.72	7.38	28.58	34.96	51.92	56.85	54.59	47.18	28.23	17.12	11.85
2003	-1.97	-5.91	13.05	29.04	40.19	50.17	52.91	52.61	41.01	32.01	15.04	10.48
2004	-8.76	7.86	17.72	29.78	36.41	45.26	53.14	43.79	49.28	35.43	22.34	1.75
2005	-8.94	4.10	8.08	32.96	40.94	53.42	54.65	49.71	44.12	33.92	20.36	11.04
2006	14.06	-4.06	17.77	33.74	44.02	48.56	55.40	49.59	40.52	28.46	21.86	11.33
2007	2.04	-5.86	17.25	24.68	43.15	51.08	52.55	47.79	43.04	36.88	20.66	-0.17
2008	-4.70	-4.26	9.94	25.40	34.03	46.52	51.10	50.52	43.40	33.68	19.46	-8.53
2009	-13.93	0.63	13.07	29.96	36.01	46.28	47.96	48.61	47.42	31.25	25.94	2.27
2010	-2.84	-3.49	24.86	33.14	41.75	48.80	56.84	56.77	41.84	35.48	21.62	0.76
2011	-8.18	-1.30	11.45	30.38	39.32	49.64	55.28	52.15	39.08	38.10	21.92	10.81
2012	5.81	9.84	27.30	30.92	42.53	50.37	57.13	48.08	37.70	32.00	20.06	5.20
2013	-2.55	-1.56	6.57	23.30	40.07	48.08	54.30	51.57	46.10	32.75	16.94	-12.71
2014	-14.10	-10.81	1.98	25.82	43.96	53.66	52.67	49.10	44.96	33.63	11.72	13.19
2015	-1.21	-9.40	17.19	29.00	38.45	48.32	55.23	52.09	49.58	33.51	26.30	17.54
2016	4.04	11.40	23.35	29.00	39.90	48.92	54.88	53.48	47.78	37.23	28.76	4.59
2017	3.03	9.05	14.87	29.72	38.56	48.86	52.67	48.20	46.28	34.61	14.96	-0.98
2018	-4.58	-7.41	14.58	19.82	43.03	50.12	54.18	50.99	44.66	32.06	15.32	9.47
2019	-3.87	-6.45	9.41	28.70	35.43	46.34	52.67	48.61	46.64	33.92	15.86	3.95
2020	3.78	-5.43	15.57	24.56	37.17	50.72	54.76	52.73	40.64	27.24	22.22	8.31
2021	6.57	-8.50	21.61	29.06	38.85	50.72	52.96	54.24	45.74	40.07	21.08	5.99
2022	-11.84	-12.16	13.07	26.96	43.55	49.46	55.52	55.40	46.28	35.95	22.58	4.42
2023	8.83	1.08	10.17	28.34	45.53	55.22	51.05	53.89	51.44	38.97	22.82	23.87
2024	9.12	16.54	18.65	32.78	43.32	50.42	57.32	57.20	51.86	36.65	27.86	9.32
NCEI Climatology	-4.69	-2.39	12.00	26.90	40.20	51.90	55.79	54.80	46.88	34.59	19.90	5.10

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1997	M	M	M	M	M	M	M	M	M	M	14.00	23.32
1998	14.66	29.20	27.89	45.18	57.06	59.78	65.52	66.21	57.77	46.08	29.15	15.39
1999	7.66	21.89	29.39	42.60	55.94	61.82	68.15	63.61	53.60	42.66	35.52	20.00
2000	7.98	21.61	33.74	40.34	55.03	58.27	66.55	63.83	53.60	45.92	29.42	2.18
2001	15.92	6.16	24.45	42.74	54.15	62.60	67.62	66.11	54.95	42.22	38.24	20.82
2002	14.49	21.36	17.66	38.66	47.76	64.28	68.70	65.15	58.73	35.28	25.13	19.69
2003	7.58	6.38	23.97	41.41	53.95	62.08	65.72	64.37	52.65	42.57	23.32	19.55
2004	1.52	17.94	28.20	41.21	48.03	58.22	65.30	56.18	59.78	44.08	31.40	12.08
2005	2.68	16.19	21.81	45.20	50.64	63.26	66.64	61.99	57.02	44.05	28.43	16.99
2006	21.90	8.41	27.30	46.76	54.82	61.70	69.54	63.94	53.27	38.36	29.57	20.47
2007	11.71	5.07	28.25	38.15	55.72	63.80	65.94	61.76	55.01	46.20	27.38	9.85
2008	6.68	8.41	21.14	36.44	47.71	58.73	64.05	64.02	54.86	43.87	27.41	2.53
2009	-0.17	12.10	23.93	40.70	49.30	58.61	60.05	60.71	60.44	37.95	35.45	9.65
2010	7.99	12.04	36.38	47.51	54.09	59.57	67.82	67.29	51.68	47.18	30.05	9.47
2011	2.30	11.17	22.91	40.19	51.65	60.26	68.38	65.56	53.69	48.43	31.07	19.78
2012	15.42	19.90	39.03	42.41	55.10	63.34	70.40	63.15	53.15	41.29	28.49	14.60
2013	8.19	10.59	19.28	32.48	51.68	60.41	65.76	64.89	58.64	42.25	25.37	-1.53
2014	-1.88	1.40	15.89	36.14	53.98	63.38	63.44	61.19	55.88	43.73	19.73	19.75
2015	9.50	2.24	29.24	42.41	51.71	60.29	67.42	63.91	61.31	44.98	34.97	23.38
2016	11.24	16.85	33.31	39.35	54.21	61.13	66.69	65.33	57.74	46.66	37.97	12.66
2017	12.40	19.62	25.82	41.63	50.90	61.46	65.85	61.12	57.47	44.60	23.57	7.96
2018	7.29	6.09	26.11	32.45	58.42	62.72	66.75	64.08	55.34	38.62	21.62	18.15
2019	5.40	4.28	21.23	38.81	47.71	59.93	65.76	61.53	55.70	41.17	22.55	13.56
2020	12.03	9.84	27.41	36.77	50.61	63.35	67.65	64.89	52.46	35.77	31.52	16.96
2021	15.60	3.42	33.57	40.07	53.16	65.36	67.27	67.07	59.36	50.20	29.81	15.86
2022	1.25	2.33	23.99	34.67	54.56	62.78	67.13	66.69	58.22	46.55	29.72	12.43
2023	16.21	14.29	22.56	37.67	59.20	67.16	63.94	65.68	62.12	47.01	31.22	29.76
2024	15.92	25.51	28.66	43.58	54.85	62.33	68.96	67.22	65.06	48.66	34.07	16.56
NCEI Climatology	5.50	9.96	23.80	38.10	51.55	61.91	66.29	64.80	56.44	42.75	26.90	13.15

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
1997	M	M	M	M	M	M	M	M	M	M	61.0%	85.6%
1998	88.0%	86.5%	73.5%	61.6%	68.2%	82.1%	81.9%	81.3%	79.9%	85.4%	89.3%	81.6%
1999	78.2%	75.2%	70.8%	66.7%	72.3%	80.0%	81.7%	85.9%	86.2%	75.3%	76.3%	83.6%
2000	79.2%	77.2%	72.0%	65.1%	70.4%	82.9%	81.8%	85.6%	80.9%	80.1%	92.2%	81.9%
2001	86.7%	77.3%	73.9%	76.4%	76.0%	75.9%	79.6%	82.8%	85.6%	82.1%	86.9%	88.0%
2002	87.0%	76.0%	66.8%	74.2%	67.4%	76.1%	81.2%	85.3%	83.8%	84.7%	80.7%	76.0%
2003	66.9%	61.7%	64.7%	54.0%	56.5%	71.9%	74.9%	78.1%	73.9%	71.1%	76.2%	77.2%
2004	72.3%	71.2%	71.5%	57.4%	61.8%	65.5%	73.9%	77.2%	78.0%	78.2%	73.4%	80.2%
2005	M	M	M	M	M	M	M	M	M	M	M	81.0%
2006	81.2%	70.7%	68.5%	58.4%	69.8%	69.6%	65.5%	69.8%	73.3%	72.1%	74.5%	79.5%
2007	73.6%	66.4%	69.2%	55.7%	64.7%	66.1%	65.7%	67.1%	76.3%	76.0%	71.2%	82.1%
2008	74.0%	70.8%	63.5%	63.1%	57.1%	65.0%	69.6%	67.2%	76.5%	71.7%	80.2%	76.1%
2009	73.5%	73.0%	69.0%	60.3%	62.2%	70.3%	73.3%	78.4%	78.0%	83.2%	77.9%	78.3%
2010	75.5%	65.1%	66.7%	52.2%	64.6%	78.0%	74.2%	73.6%	75.4%	67.4%	73.4%	78.5%
2011	76.7%	69.2%	61.2%	64.4%	61.0%	71.3%	71.1%	74.4%	74.9%	69.4%	72.9%	74.1%
2012	76.2%	73.7%	70.3%	61.2%	65.2%	70.2%	72.5%	72.5%	64.1%	73.5%	77.6%	81.5%
2013	75.3%	73.2%	66.0%	64.5%	63.5%	70.6%	74.7%	74.5%	76.1%	77.2%	75.4%	75.6%
2014	70.3%	68.5%	64.1%	61.6%	64.7%	73.5%	75.5%	81.0%	77.9%	71.3%	73.7%	81.0%
2015	74.5%	66.7%	60.9%	51.3%	67.1%	74.6%	73.1%	77.0%	75.5%	74.1%	80.3%	85.1%
2016	79.2%	72.2%	69.4%	63.8%	59.7%	73.7%	75.4%	77.5%	79.5%	76.0%	78.9%	78.3%
2017	78.8%	70.8%	62.4%	63.6%	61.9%	70.4%	76.0%	78.3%	81.8%	73.0%	78.2%	77.0%
2018	73.9%	66.9%	60.0%	54.2%	61.5%	74.4%	76.6%	78.5%	79.8%	78.9%	79.4%	80.8%
2019	75.5%	73.3%	68.3%	67.9%	65.6%	70.1%	76.4%	77.9%	85.5%	77.1%	80.2%	80.2%
2020	80.4%	69.0%	66.4%	57.9%	58.6%	68.9%	77.0%	79.3%	78.0%	73.5%	74.5%	81.9%
2021	82.5%	67.6%	61.0%	66.5%	60.3%	69.1%	71.4%	70.5%	73.5%	80.5%	76.7%	78.7%
2022	72.9%	68.4%	63.0%	71.6%	65.3%	65.3%	75.4%	78.3%	77.5%	71.1%	79.3%	79.2%
2023	83.5%	68.5%	63.9%	65.7%	56.8%	71.7%	75.4%	77.8%	80.4%	79.1%	74.5%	84.4%
2024	82.1%	73.4%	61.9%	62.6%	65.6%	71.2%	76.0%	76.9%	72.1%	67.3%	80.8%	81.5%