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
1995	M	M	M	0.00	M	M	M	M	M	M	M	M
1996	M	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1997	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1998	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1999	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2000	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2001	0.00	0.00	0.00	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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
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	0.00
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	0.00	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
1995	M	M	M	9.8	M	M	M	M	M	M	M	M
1996	M	M	M	M	15.0	12.0	M	M	M	M	M	M
1997	M	M	M	M	M	M	M	M	M	M	M	M
1998	M	M	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	11.9	13.0	17.3	16.1
2000	15.6	13.0	15.6	12.9	12.6	13.9	11.7	11.5	11.6	14.0	12.8	14.0
2001	14.6	13.3	13.3	14.3	13.6	12.5	11.2	14.7	13.3	15.8	19.8	18.9
2002	17.1	17.6	14.6	12.6	13.1	13.9	12.5	11.6	13.7	9.4	16.3	17.9
2003	16.2	10.6	18.5	15.4	12.0	13.1	11.2	11.3	11.8	17.0	14.8	16.4
2004	0.0	8.4	15.3	10.2	11.7	13.0	13.0	11.3	12.4	14.7	18.4	14.7
2005	16.3	11.1	15.9	16.0	14.0	12.1	13.3	11.2	11.4	17.7	15.6	16.2
2006	21.5	6.8	15.7	14.8	12.9	12.9	12.4	11.7	10.8	12.4	20.5	21.2
2007	19.0	17.2	20.2	13.5	12.7	13.1	12.7	10.1	12.9	16.7	16.2	20.0
2008	19.7	14.2	15.4	12.7	13.2	13.2	13.6	12.4	13.4	17.1	18.0	17.8
2009	14.5	12.1	17.2	13.3	12.9	12.3	11.7	12.8	12.7	16.7	22.7	13.6
2010	18.3	14.8	15.8	16.1	12.0	13.1	12.5	11.5	13.3	17.0	18.1	22.0
2011	15.9	17.7	18.9	14.8	13.3	13.6	10.8	10.7	13.7	13.9	19.6	15.7
2012	21.3	16.5	18.0	13.7	13.6	13.9	10.7	10.2	9.5	14.6	18.0	18.5
2013	11.5	15.9	13.2	13.8	11.4	11.7	12.1	10.7	11.6	10.9	14.0	15.2
2014	11.4	14.6	15.5	14.2	11.7	13.2	11.0	9.9	11.4	16.2	15.2	16.3
2015	12.3	13.1	14.1	13.9	9.6	12.6	12.9	12.1	7.8	12.7	14.9	21.9
2016	15.8	15.0	17.3	12.2	12.2	11.6	13.1	12.0	11.0	18.4	21.7	19.0
2017	16.4	13.4	17.9	14.6	11.4	13.2	12.5	10.5	10.2	13.4	20.8	10.7
2018	18.4	15.3	10.1	14.6	11.4	14.2	11.3	10.1	M	18.8	16.0	20.8
2019	14.8	13.5	9.4	15.7	12.3	12.5	11.7	11.1	13.9	15.2	11.3	18.7
2020	24.1	14.8	12.6	12.3	12.2	13.5	11.7	12.6	10.2	14.1	20.3	17.9
2021	19.1	17.5	16.3	12.4	11.7	12.5	11.6	12.2	14.9	17.7	19.3	17.1
2022	15.9	11.9	14.8	13.4	12.5	12.5	10.5	10.9	10.8	11.4	15.0	17.1
2023	17.9	19.2	13.2	17.7	10.3	13.2	13.0	11.2	12.0	13.1	14.2	18.2
2024	19.1	13.1	14.0	14.1	14.2	13.2	12.2	11.1	11.4	15.1	19.9	17.3
2025	11.1	16.1	17.0	13.4	12.5	13.6	11.9	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	M	M	M	M	M	M	M	M	M
1996	M	M	M	M	58.86	61.85	67.70	66.50	59.68	53.43	44.72	40.31
1997	42.84	45.04	45.70	51.43	59.94	61.80	67.10	69.07	62.88	53.80	48.79	45.72
1998	43.84	47.00	48.75	53.12	58.89	64.38	68.68	69.54	63.87	53.77	49.15	44.32
1999	44.00	44.88	45.78	50.96	54.32	59.96	64.73	69.50	62.08	53.58	49.53	44.81
2000	43.09	45.05	47.88	52.89	55.62	63.87	67.61	67.23	63.38	55.32	47.34	44.19
2001	45.93	44.46	48.06	51.91	56.91	61.49	67.01	66.31	62.53	53.75	50.03	43.92
2002	44.32	44.88	43.71	52.95	57.10	65.33	68.58	68.73	62.92	53.60	49.34	46.15
2003	47.26	45.39	48.53	51.04	58.29	66.22	70.15	69.30	65.16	56.62	47.03	45.36
2004	M	45.40	M	M	M	67.47	68.69	67.09	58.19	53.73	45.99	44.26
2005	43.55	46.15	50.15	54.21	60.24	62.58	67.41	M	55.90	54.61	45.90	45.50
2006	46.40	42.81	43.89	48.14	55.15	61.12	64.31	63.75	59.25	50.31	44.51	42.96
2007	42.47	45.14	54.94	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	68.95	61.52	54.85	47.52	40.19
2009	40.56	44.08	45.84	55.96	58.17	66.51	71.46	68.50	63.50	54.54	48.76	41.27
2010	47.38	48.08	49.22	52.23	56.48	61.15	68.66	69.33	61.44	55.49	46.23	45.16
2011	44.34	42.29	46.54	48.42	54.71	62.05	65.36	68.72	65.27	53.60	46.76	44.16
2012	43.19	44.05	45.67	51.53	57.38	60.33	68.35	69.88	64.57	54.02	48.63	43.66
2013	41.02	45.20	48.89	53.20	58.84	63.63	70.89	68.79	64.54	52.81	47.85	42.93
2014	43.96	41.95	47.61	52.63	61.56	64.08	70.53	71.67	65.37	57.56	49.05	46.57
2015	46.43	49.35	50.66	53.14	63.72	69.07	71.46	69.17	61.03	57.11	48.09	45.89
2016	44.80	48.16	50.59	57.05	63.08	64.88	68.09	69.85	62.04	54.81	51.89	41.27
2017	42.67	42.98	46.38	51.27	59.89	63.98	69.23	71.36	66.15	54.96	48.23	41.97
2018	45.53	43.29	47.34	52.39	63.13	64.04	71.08	71.90	M	53.23	50.79	46.35
2019	45.46	39.22	48.66	53.27	63.69	65.59	67.94	69.55	62.51	52.82	48.79	46.09
2020	45.11	44.37	46.65	53.38	60.80	62.81	67.96	68.19	65.27	54.78	48.69	46.47
2021	45.92	43.01	47.69	54.93	59.06	68.92	72.12	70.26	62.70	53.31	49.18	40.70
2022	42.91	45.14	48.19	50.16	55.22	63.48	71.45	75.01	70.70	63.73	46.65	42.48
2023	46.11	45.98	50.47	52.43	67.87	68.10	73.04	70.75	62.91	55.35	49.02	48.27
2024	44.19	45.34	48.04	52.34	58.95	63.05	71.64	69.46	63.85	55.28	48.70	47.90
2025	43.95	43.49	48.17	54.65	59.18	64.29	70.40	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	M	M	M	M	M	M	M	M	M
1996	M	M	M	M	53.14	55.93	59.70	60.83	55.07	49.03	41.72	36.76
1997	40.00	41.80	42.00	46.11	53.74	56.93	61.43	62.40	57.58	50.63	46.17	43.07
1998	40.89	44.21	45.07	47.38	53.59	58.03	62.68	62.96	58.47	50.45	46.08	41.54
1999	41.56	41.08	41.89	45.19	48.68	54.37	58.55	64.50	55.54	48.61	44.90	41.03
2000	38.98	41.15	42.88	47.05	49.74	55.75	60.23	60.10	56.96	50.35	43.72	40.01
2001	42.22	39.69	42.28	45.09	49.32	54.77	59.19	59.52	55.76	48.90	45.25	39.67
2002	39.99	40.26	37.77	45.19	49.66	56.87	60.63	60.11	56.41	48.47	44.92	42.11
2003	6.10	25.67	42.77	42.44	50.42	57.41	60.88	61.15	56.94	50.77	41.36	41.12
2004	M	44.60	M	M	M	65.28	65.11	65.05	57.40	52.57	45.41	42.87
2005	39.04	39.49	44.44	47.53	53.70	56.21	59.63	M	53.10	50.17	41.99	41.48
2006	41.67	40.51	41.61	46.90	53.59	59.22	62.41	61.68	58.75	49.94	43.20	42.03
2007	37.71	40.46	41.77	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	60.32	53.49	49.52	44.41	35.72
2009	36.86	38.38	40.49	45.84	49.90	58.51	61.35	60.67	56.56	48.88	43.81	37.51
2010	43.49	43.01	42.83	45.11	49.62	54.46	58.81	60.93	55.33	50.69	40.95	41.01
2011	39.18	37.03	41.63	42.42	48.83	55.28	58.86	60.88	57.47	48.98	41.54	40.41
2012	38.17	39.97	39.77	44.79	49.52	53.50	60.15	61.65	55.80	48.50	44.44	39.24
2013	38.24	41.47	42.31	46.16	52.31	56.82	60.84	62.05	57.47	47.92	43.98	38.68
2014	39.98	36.49	41.95	46.13	53.85	56.35	61.65	63.41	58.39	52.69	43.37	42.27
2015	41.96	44.45	45.33	46.19	54.83	59.95	61.92	61.31	54.53	52.36	43.24	41.35
2016	40.90	43.36	44.59	49.53	53.51	56.89	60.42	60.96	55.34	50.08	47.07	36.80
2017	38.36	37.24	40.90	45.35	51.22	55.77	61.35	62.66	58.27	49.39	43.65	37.80
2018	40.58	38.45	41.76	46.03	54.77	56.51	61.86	63.87	M	49.87	46.66	41.80
2019	41.10	33.80	41.85	46.46	53.58	57.82	60.88	62.15	57.30	48.33	44.61	42.14
2020	39.59	39.74	41.01	46.55	52.73	56.09	60.45	60.88	58.68	50.03	43.68	42.08
2021	41.32	38.22	41.77	46.53	51.09	59.35	63.44	61.91	56.23	48.37	44.18	34.85
2022	38.78	39.98	42.96	42.95	48.39	56.12	62.43	64.14	58.68	53.15	39.26	36.09
2023	41.02	38.26	40.85	43.68	55.68	57.00	61.69	62.09	56.33	49.51	44.39	44.23
2024	39.30	40.99	42.30	45.44	50.65	55.62	62.04	62.22	57.58	49.95	44.29	43.65
2025	40.15	37.86	43.19	47.28	51.50	56.39	61.43	M	M	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1995	M	M	M	M	M	M	M	M	M	M	M	M
1996	M	M	M	M	56.00	58.89	63.70	63.67	57.38	51.23	43.22	38.53
1997	41.42	43.42	43.85	48.77	56.84	59.37	64.27	65.73	60.23	52.22	47.48	44.40
1998	42.37	45.60	46.91	50.25	56.24	61.21	65.68	66.25	61.17	52.11	47.62	42.93
1999	42.78	42.98	43.83	48.07	51.50	57.17	61.64	67.00	58.81	51.10	47.22	42.92
2000	41.04	43.10	45.38	49.97	52.68	59.81	63.92	63.67	60.17	52.84	45.53	42.10
2001	44.08	42.07	45.17	48.50	53.11	58.13	63.10	62.91	59.15	51.33	47.64	41.80
2002	42.15	42.57	40.74	49.07	53.38	61.10	64.60	64.42	59.66	51.03	47.13	44.13
2003	26.68	35.53	45.65	46.74	54.36	61.82	65.52	65.22	61.05	53.70	44.20	43.24
2004	M	45.00	M	M	M	66.38	66.90	66.07	57.79	53.15	45.70	43.56
2005	41.30	42.82	47.29	50.87	56.97	59.40	63.52	M	54.50	52.39	43.94	43.49
2006	44.04	41.66	42.75	47.52	54.37	60.17	63.36	62.71	59.00	50.13	43.86	42.50
2007	40.09	42.80	48.35	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	64.64	57.51	52.19	45.96	37.95
2009	38.71	41.23	43.16	50.90	54.03	62.51	66.40	64.58	60.03	51.71	46.29	39.39
2010	45.44	45.55	46.02	48.67	53.05	57.80	63.73	65.13	58.38	53.09	43.59	43.09
2011	41.76	39.66	44.09	45.42	51.77	58.66	62.11	64.80	61.37	51.29	44.15	42.28
2012	40.68	42.01	42.72	48.16	53.45	56.92	64.25	65.76	60.19	51.26	46.53	41.45
2013	39.63	43.33	45.60	49.68	55.57	60.22	65.87	65.42	61.00	50.36	45.92	40.81
2014	41.97	39.22	44.78	49.38	57.71	60.21	66.09	67.54	61.88	55.13	46.21	44.42
2015	44.20	46.90	47.99	49.67	59.28	64.51	66.69	65.24	57.78	54.73	45.66	43.62
2016	42.85	45.76	47.59	53.29	58.30	60.89	64.25	65.41	58.69	52.44	49.48	39.04
2017	40.52	40.11	43.64	48.31	55.55	59.87	65.29	67.01	62.21	52.17	45.94	39.89
2018	43.05	40.87	44.55	49.21	58.95	60.28	66.47	67.88	M	51.55	48.72	44.08
2019	43.28	36.51	45.25	49.86	58.64	61.71	64.41	65.85	59.90	50.57	46.70	44.11
2020	42.35	42.05	43.83	49.96	56.76	59.45	64.21	64.53	61.98	52.40	46.19	44.28
2021	43.62	40.62	44.73	50.73	55.08	64.13	67.78	66.08	59.47	50.84	46.68	37.78
2022	40.85	42.56	45.57	46.56	51.81	59.80	66.94	69.58	64.69	58.44	42.95	39.29
2023	43.57	42.12	45.66	48.05	61.78	62.55	67.36	66.42	59.62	52.43	46.71	46.25
2024	41.74	43.16	45.17	48.89	54.80	59.34	66.84	65.84	60.72	52.61	46.50	45.78
2025	42.05	40.68	45.68	50.96	55.34	60.34	65.91	M	M	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
1995	M	M	M	M	M	M	M	M	M	M	M	M
1996	M	M	M	M	70.7%	72.8%	M	M	M	M	M	M
1997	M	M	M	M	M	M	M	M	M	M	M	M
1998	M	M	M	M	M	M	M	M	M	M	M	M
1999	M	M	M	M	M	M	M	M	78.7%	86.7%	87.6%	87.8%
2000	85.1%	84.6%	81.9%	77.0%	79.2%	75.7%	79.3%	77.6%	81.7%	81.8%	M	M
2001	M	M	80.2%	77.7%	76.2%	76.7%	78.0%	85.3%	84.8%	85.3%	87.8%	88.9%
2002	90.7%	85.4%	85.0%	81.8%	79.0%	79.1%	79.1%	79.8%	84.4%	91.8%	96.2%	92.6%
2003	96.9%	85.9%	77.6%	77.6%	70.9%	68.0%	70.8%	73.4%	76.4%	82.3%	76.5%	82.2%
2004	83.7%	85.8%	77.5%	71.1%	70.3%	67.6%	71.1%	76.6%	78.7%	80.7%	84.3%	84.7%
2005	83.4%	78.5%	79.1%	73.0%	75.0%	74.2%	72.1%	73.2%	75.7%	82.9%	80.0%	81.2%
2006	81.5%	67.2%	74.0%	73.0%	68.4%	69.6%	70.3%	70.3%	75.0%	77.3%	78.2%	79.2%
2007	82.1%	83.6%	81.1%	M	M	M	M	M	M	M	M	M
2008	M	M	M	M	M	M	M	74.0%	81.6%	78.4%	82.4%	80.0%
2009	87.6%	79.0%	75.8%	61.4%	71.5%	69.8%	71.5%	74.0%	76.3%	78.1%	80.1%	76.3%
2010	85.9%	85.5%	76.0%	72.5%	73.8%	74.1%	68.1%	70.2%	82.3%	81.9%	79.4%	79.7%
2011	82.4%	74.6%	80.0%	71.3%	74.5%	73.1%	74.8%	71.3%	76.9%	82.5%	78.1%	81.7%
2012	78.9%	82.3%	75.3%	77.9%	68.9%	75.3%	74.3%	73.6%	75.5%	82.3%	82.8%	81.3%
2013	84.9%	82.9%	79.1%	72.3%	75.1%	76.0%	68.3%	77.3%	79.5%	83.4%	79.0%	78.3%
2014	86.4%	72.0%	79.0%	73.7%	72.7%	70.3%	69.9%	70.7%	76.6%	84.5%	77.4%	80.8%
2015	88.0%	85.3%	80.9%	69.7%	70.6%	64.7%	67.0%	70.8%	75.9%	82.4%	76.4%	77.5%
2016	83.4%	81.0%	75.4%	72.7%	64.6%	67.9%	71.0%	69.4%	76.5%	83.6%	81.9%	76.9%
2017	72.3%	77.6%	78.6%	77.7%	73.2%	68.4%	65.9%	69.4%	73.2%	76.8%	76.5%	81.9%
2018	82.9%	73.4%	75.1%	72.6%	68.3%	67.9%	67.0%	71.5%	M	88.9%	84.9%	81.6%
2019	85.3%	73.4%	72.9%	73.5%	70.8%	68.7%	75.6%	76.0%	81.3%	76.5%	83.6%	87.0%
2020	84.5%	80.9%	71.3%	69.9%	71.9%	74.4%	73.0%	73.0%	81.5%	80.4%	77.9%	83.1%
2021	82.1%	75.1%	73.3%	68.1%	71.7%	70.5%	70.2%	72.0%	79.7%	80.7%	82.7%	78.1%
2022	88.6%	78.6%	80.0%	71.6%	74.1%	76.1%	74.8%	74.0%	74.2%	78.3%	79.3%	81.8%
2023	84.8%	77.1%	75.0%	76.3%	70.0%	69.4%	71.6%	75.6%	78.7%	83.9%	83.5%	87.0%
2024	85.8%	82.9%	83.5%	74.7%	70.8%	M	M	71.6%	78.1%	81.3%	82.4%	84.5%
2025	83.4%	79.4%	83.7%	72.1%	71.7%	73.3%	73.3%	M	M	M	M	M