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
1998	M	0.00	0.00	0.00	0.00	0.00	M	M	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	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	M	M	M	M	M	M	M	M	M	M	M
2011	M	M	M	M	M	M	M	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
2026	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
1998	M	14.8	12.5	8.9	7.4	9.3	M	M	10.4	10.1	11.6	14.1
1999	13.5	12.8	8.9	8.4	9.5	9.1	10.7	10.5	8.9	9.7	15.5	11.4
2000	12.8	12.3	9.7	7.1	7.8	12.5	10.8	12.4	9.6	11.5	9.1	12.3
2001	11.5	11.9	9.9	11.1	11.4	11.9	11.3	13.1	10.8	13.7	13.0	16.5
2002	12.2	10.3	11.2	9.5	10.4	11.3	8.3	9.1	7.5	9.0	8.3	6.1
2003	13.8	16.9	14.2	12.3	10.0	11.1	11.5	12.7	10.8	12.3	8.9	12.8
2004	10.5	13.7	15.1	12.2	11.2	9.2	14.1	9.6	12.8	8.5	12.1	12.2
2005	11.8	15.7	10.7	12.7	7.2	12.4	9.9	11.0	10.8	14.4	15.1	14.1
2006	16.6	14.7	11.7	9.8	11.8	11.8	18.2	10.1	13.5	12.2	11.6	11.5
2007	10.7	12.9	14.7	11.4	8.6	7.3	13.7	11.7	11.4	11.6	11.6	13.6
2008	13.0	12.2	13.2	9.4	8.0	11.0	13.0	15.4	11.2	13.1	10.9	14.0
2009	14.0	7.0	3.9	9.6	8.5	10.7	12.4	16.7	11.9	10.9	10.6	10.6
2010	15.1	12.6	10.4	11.3	6.4	8.5	12.1	11.4	11.4	12.4	9.7	12.4
2011	11.6	13.6	13.0	14.6	9.8	9.2	9.1	13.7	12.1	13.8	14.8	11.2
2012	13.1	13.0	10.1	11.7	7.8	10.2	11.1	11.8	9.5	9.5	12.4	11.5
2013	12.7	12.8	12.2	11.6	8.2	9.6	14.0	11.5	8.0	10.6	11.9	12.4
2014	10.4	9.7	11.7	9.1	9.5	8.5	9.4	9.1	9.4	11.7	10.1	9.5
2015	14.0	16.6	11.6	9.9	7.9	8.9	12.1	11.1	9.0	12.6	10.9	13.5
2016	14.1	10.7	11.7	8.7	8.6	8.6	15.3	12.4	11.0	11.1	12.8	14.5
2017	14.4	15.2	10.9	8.1	9.3	7.2	15.0	17.5	8.6	13.0	9.4	14.3
2018	13.3	13.4	13.6	8.8	11.1	9.7	9.4	14.4	13.8	12.5	16.9	13.3
2019	14.3	17.1	14.0	11.1	7.9	11.5	12.2	15.7	13.0	11.4	10.0	13.9
2020	18.6	14.7	14.2	13.8	9.2	10.0	15.4	13.9	13.3	10.0	17.2	14.0
2021	14.7	15.4	14.9	12.0	9.5	9.0	14.4	12.1	14.1	15.1	14.9	14.5
2022	15.7	14.9	16.2	12.0	10.3	13.2	16.7	11.8	12.6	16.0	13.9	11.2
2023	12.8	15.4	14.2	11.3	11.6	10.4	12.0	11.5	13.4	11.3	12.8	11.4
2024	17.5	14.1	10.7	13.7	10.8	12.4	15.5	12.6	10.8	16.2	15.0	13.8
2025	11.5	15.1	13.3	11.0	10.8	14.0	11.4	14.2	14.8	10.4	11.1	13.5
2026	16.3	15.0	15.2	12.1	10.2	12.1	12.6	14.4	14.9	12.1	15.2	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	57.60	54.69	65.60	70.26	80.00	M	M	76.21	72.86	65.93	55.59
1999	55.40	55.46	59.99	66.75	73.10	81.35	83.97	84.33	78.60	73.81	64.10	62.02
2000	50.17	55.21	57.50	65.96	73.40	79.28	87.16	82.90	78.74	69.81	68.07	59.10
2001	57.74	57.73	66.37	65.24	72.29	80.30	86.90	84.61	81.03	72.14	63.15	53.16
2002	53.00	60.61	60.63	62.74	71.27	80.54	86.57	85.45	78.79	72.53	66.92	58.38
2003	58.33	47.73	54.66	58.31	73.32	81.32	85.13	84.38	77.61	73.40	64.64	57.57
2004	52.79	56.08	59.00	62.21	70.44	80.60	82.76	84.20	77.00	73.65	65.00	59.30
2005	56.33	53.27	59.99	63.29	73.85	77.99	84.66	84.95	78.56	68.75	61.04	58.52
2006	51.68	55.79	58.94	65.46	72.30	80.18	80.66	87.45	76.88	69.97	61.52	56.74
2007	58.83	55.91	59.81	64.34	73.34	84.50	86.12	85.77	78.86	71.48	63.68	56.15
2008	54.76	55.65	63.47	66.68	72.82	81.44	84.49	83.79	77.96	71.48	66.02	58.83
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	86.00	M	M	69.80	61.44
2011	56.17	M	M	59.00	69.80	77.90	80.60	81.50	80.48	67.71	58.40	59.99
2012	52.21	55.21	60.05	68.90	75.32	83.78	88.09	86.81	80.12	77.17	66.08	58.36
2013	56.85	59.58	62.31	68.18	75.90	80.48	83.56	83.91	81.86	71.02	66.98	56.97
2014	60.05	60.29	61.61	67.04	73.86	82.10	85.71	86.81	80.54	71.14	64.10	62.37
2015	56.74	55.08	58.13	63.08	72.76	76.94	81.65	83.21	79.46	71.02	67.10	58.48
2016	56.68	62.41	61.79	69.62	72.35	81.98	82.63	82.28	78.56	71.95	65.84	53.18
2017	52.21	57.71	60.86	65.36	73.11	81.56	84.49	82.69	81.32	70.85	64.82	60.22
2018	57.32	59.06	63.76	70.04	75.66	81.32	87.16	83.79	79.46	70.61	64.82	56.79
2019	55.17	56.17	60.92	64.16	73.17	83.60	84.43	83.79	78.50	73.75	70.10	60.74
2020	55.11	58.38	61.67	64.34	74.45	81.26	84.26	85.13	81.92	76.83	64.46	62.31
2021	60.28	59.64	59.64	66.14	77.29	81.92	87.57	88.73	80.42	70.50	66.14	59.12
2022	54.88	58.23	54.99	67.22	74.21	82.64	84.32	85.25	80.72	72.12	66.68	62.89
2023	59.93	56.11	61.90	66.32	70.85	79.88	89.95	86.17	80.72	75.72	71.48	63.76
2024	58.42	61.42	64.28	70.82	73.75	85.88	87.63	87.28	83.00	74.15	64.28	60.34
2025	61.21	54.11	63.76	65.18	74.50	83.48	89.14	85.25	80.00	72.35	69.80	61.79
2026	59.93	61.12	59.58	66.38	74.15	82.40	86.23	85.54	79.34	69.63	64.22	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	51.07	48.51	57.44	61.32	70.04	M	M	68.84	64.74	59.97	51.36
1999	50.84	48.78	53.08	57.93	64.28	72.85	75.84	77.07	71.54	67.01	59.36	55.86
2000	45.06	48.76	49.52	57.86	63.59	70.76	77.19	75.08	70.87	62.77	60.30	53.99
2001	52.77	50.46	57.43	56.84	64.05	71.96	78.17	77.35	73.27	65.81	56.95	48.57
2002	47.71	53.09	53.66	56.01	63.91	72.44	78.23	77.12	71.59	65.33	60.39	54.10
2003	54.03	43.47	49.05	52.84	66.04	73.58	77.23	78.02	70.89	66.84	58.46	52.26
2004	47.64	49.38	53.48	56.34	62.72	73.04	75.38	76.42	70.22	66.01	57.50	53.96
2005	50.07	47.40	52.55	56.16	65.15	71.60	76.48	76.83	72.14	63.47	56.06	53.48
2006	46.69	48.97	52.09	58.88	65.50	73.76	74.56	79.26	71.00	65.15	54.98	51.34
2007	51.68	50.45	53.89	57.98	66.37	76.64	78.39	78.28	71.66	65.15	57.62	51.45
2008	48.61	48.20	56.45	58.76	65.15	74.24	77.46	77.35	71.12	64.92	60.20	53.48
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	86.00	M	M	69.80	55.63
2011	50.26	M	M	57.20	67.10	77.00	78.80	69.62	72.02	60.63	53.42	51.28
2012	44.54	46.09	49.88	56.90	63.18	71.48	77.87	77.87	70.04	67.07	59.60	49.94
2013	48.37	50.64	53.89	59.30	68.81	74.12	75.84	74.39	69.98	62.19	58.94	50.46
2014	52.73	51.86	52.44	55.04	61.73	69.26	74.10	75.66	69.92	63.01	56.78	52.96
2015	49.01	50.13	52.38	54.98	63.53	68.72	74.50	76.65	72.68	65.15	60.14	53.83
2016	50.70	55.09	54.01	59.36	62.66	73.04	76.65	76.19	71.42	65.50	58.94	48.62
2017	47.74	52.51	54.94	57.50	63.94	72.50	77.00	74.91	71.54	63.35	56.36	53.14
2018	49.88	52.38	55.46	59.36	68.46	73.34	76.36	74.97	71.06	63.47	58.52	49.94
2019	47.50	49.10	52.38	55.10	61.50	72.62	74.62	75.49	69.92	65.85	62.12	53.19
2020	48.84	49.88	52.85	54.98	63.88	68.72	75.66	77.52	72.98	67.13	58.70	56.04
2021	52.32	51.74	50.64	57.08	64.57	70.58	77.58	78.10	71.24	63.12	58.70	52.15
2022	46.98	49.61	46.98	56.84	62.77	72.26	74.50	74.85	70.94	65.15	59.66	55.86
2023	52.26	48.52	52.90	55.76	61.73	69.86	78.45	76.77	72.50	66.84	62.42	56.79
2024	51.97	53.91	54.99	60.98	63.70	75.20	78.16	78.05	73.40	66.90	57.32	53.43
2025	54.41	48.20	54.82	55.46	62.37	72.86	76.65	75.49	71.60	64.05	61.52	55.05
2026	52.32	53.54	52.15	57.74	62.19	71.54	75.78	76.01	71.30	62.25	58.46	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	54.33	51.60	61.52	65.79	75.02	M	M	72.52	68.80	62.95	53.48
1999	53.12	52.12	56.53	62.34	68.69	77.10	79.90	80.70	75.07	70.41	61.73	58.94
2000	47.62	51.99	53.51	61.91	68.49	75.02	82.18	78.99	74.80	66.29	64.19	56.54
2001	55.25	54.09	61.90	61.04	68.17	76.13	82.54	80.98	77.15	68.97	60.05	50.86
2002	50.35	56.85	57.14	59.38	67.59	76.49	82.40	81.28	75.19	68.93	63.66	56.24
2003	56.18	45.60	51.85	55.58	69.68	77.45	81.18	81.20	74.25	70.12	61.55	54.92
2004	50.22	52.73	56.24	59.27	66.58	76.82	79.07	80.31	73.61	69.83	61.25	56.63
2005	53.20	50.33	56.27	59.73	69.50	74.80	80.57	80.89	75.35	66.11	58.55	56.00
2006	49.19	52.38	55.52	62.17	68.90	76.97	77.61	83.36	73.94	67.56	58.25	54.04
2007	55.25	53.18	56.85	61.16	69.86	80.57	82.25	82.02	75.26	68.32	60.65	53.80
2008	51.68	51.92	59.96	62.72	68.99	77.84	80.98	80.57	74.54	68.20	63.11	56.15
2009	M	M	M	M	M	M	M	M	M	M	M	M
2010	M	M	M	M	M	M	M	86.00	M	M	69.80	58.54
2011	53.21	M	M	58.10	68.45	77.45	79.70	75.56	76.25	64.17	55.91	55.63
2012	48.37	50.65	54.96	62.90	69.25	77.63	82.98	82.34	75.08	72.12	62.84	54.15
2013	52.61	55.11	58.10	63.74	72.35	77.30	79.70	79.15	75.92	66.61	62.96	53.72
2014	56.39	56.07	57.03	61.04	67.80	75.68	79.90	81.24	75.23	67.07	60.44	57.66
2015	52.87	52.60	55.25	59.03	68.15	72.83	78.07	79.93	76.07	68.09	63.62	56.15
2016	53.69	58.75	57.90	64.49	67.51	77.51	79.64	79.24	74.99	68.73	62.39	50.90
2017	49.97	55.11	57.90	61.43	68.52	77.03	80.75	78.80	76.43	67.10	60.59	56.68
2018	53.60	55.72	59.61	64.70	72.06	77.33	81.76	79.38	75.26	67.04	61.67	53.37
2019	51.34	52.64	56.65	59.63	67.33	78.11	79.53	79.64	74.21	69.80	66.11	56.97
2020	51.97	54.13	57.26	59.66	69.16	74.99	79.96	81.33	77.45	71.98	61.58	59.17
2021	56.30	55.69	55.14	61.61	70.93	76.25	82.57	83.42	75.83	66.81	62.42	55.63
2022	50.93	53.92	50.99	62.03	68.49	77.45	79.41	80.05	75.83	68.64	63.17	59.38
2023	56.10	52.31	57.40	61.04	66.29	74.87	84.20	81.47	76.61	71.28	66.95	60.28
2024	55.20	57.67	59.64	65.90	68.73	80.54	82.89	82.66	78.20	70.53	60.80	56.88
2025	57.81	51.16	59.29	60.32	68.44	78.17	82.89	80.37	75.80	68.20	65.66	58.42
2026	56.13	57.33	55.86	62.06	68.17	76.97	81.01	80.77	75.32	65.94	61.34	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
1998	M	71.4%	77.4%	72.4%	76.4%	60.0%	M	M	70.6%	77.0%	71.2%	82.7%
1999	79.0%	81.4%	77.4%	81.6%	74.2%	65.2%	73.6%	66.7%	82.4%	76.3%	79.3%	79.9%
2000	72.2%	72.4%	75.1%	77.9%	67.7%	77.0%	56.7%	68.4%	68.1%	76.1%	75.8%	75.6%
2001	75.8%	72.8%	73.1%	71.4%	69.1%	59.0%	65.7%	65.0%	60.6%	65.7%	70.5%	75.6%
2002	69.9%	72.8%	71.8%	71.8%	63.7%	55.9%	54.9%	57.9%	68.2%	66.1%	74.3%	75.0%
2003	73.2%	69.5%	65.6%	72.7%	58.5%	49.5%	53.1%	54.3%	59.8%	64.8%	73.5%	73.8%
2004	74.0%	69.9%	64.3%	66.8%	62.3%	58.3%	59.6%	60.4%	70.1%	72.0%	71.2%	76.0%
2005	74.0%	70.7%	68.9%	64.1%	64.2%	57.4%	62.7%	69.2%	65.7%	70.8%	79.3%	75.8%
2006	74.6%	78.6%	74.2%	67.1%	63.6%	58.5%	61.2%	55.9%	67.6%	74.8%	74.8%	72.9%
2007	68.8%	70.4%	68.4%	58.8%	63.2%	53.9%	51.2%	54.6%	59.4%	71.6%	72.0%	73.8%
2008	69.9%	72.6%	71.5%	70.4%	59.5%	55.0%	51.2%	60.4%	60.3%	67.6%	71.3%	69.5%
2009	73.4%	67.8%	62.6%	66.3%	55.5%	54.9%	54.6%	56.2%	63.8%	69.9%	71.1%	73.2%
2010	68.3%	68.0%	65.5%	61.8%	53.9%	57.8%	55.8%	60.1%	60.0%	67.1%	74.1%	72.4%
2011	69.6%	70.7%	70.7%	67.8%	66.1%	54.8%	55.3%	53.3%	53.2%	64.3%	62.0%	69.5%
2012	63.0%	66.0%	63.1%	63.5%	60.6%	51.1%	45.3%	45.7%	59.1%	64.7%	68.5%	67.5%
2013	64.9%	67.8%	64.8%	55.6%	63.0%	56.8%	50.3%	56.2%	59.9%	67.9%	73.1%	70.4%
2014	77.4%	76.4%	69.2%	74.0%	63.5%	59.4%	56.5%	56.7%	63.4%	69.0%	77.0%	80.4%
2015	75.5%	69.2%	75.4%	68.8%	69.5%	66.0%	60.3%	63.4%	74.5%	74.2%	73.3%	67.8%
2016	72.0%	77.2%	70.9%	66.7%	65.8%	60.3%	56.9%	59.4%	62.6%	66.9%	66.1%	64.5%
2017	67.8%	71.2%	71.0%	63.6%	61.5%	57.1%	52.8%	58.0%	58.8%	64.3%	70.5%	69.3%
2018	70.0%	72.1%	69.8%	61.0%	64.7%	61.1%	55.5%	60.4%	63.5%	73.6%	73.2%	69.0%
2019	70.2%	70.6%	68.6%	69.0%	64.8%	55.7%	53.2%	55.0%	60.5%	70.7%	74.6%	68.4%
2020	65.1%	66.0%	67.7%	64.0%	57.2%	60.7%	52.2%	55.3%	65.5%	68.9%	69.6%	73.8%
2021	68.1%	72.7%	63.4%	65.6%	58.5%	57.8%	56.0%	53.7%	58.5%	70.5%	73.3%	69.7%
2022	70.1%	70.3%	63.9%	65.7%	61.5%	57.1%	52.0%	62.1%	63.0%	63.9%	70.4%	75.2%
2023	70.9%	66.6%	69.8%	67.7%	67.6%	60.2%	49.0%	60.2%	62.4%	71.4%	69.4%	73.8%
2024	68.4%	70.8%	67.3%	61.4%	63.3%	49.1%	52.0%	53.1%	58.4%	65.6%	69.4%	72.5%
2025	75.8%	66.2%	68.5%	66.9%	60.6%	46.0%	49.4%	57.7%	60.4%	67.6%	72.5%	69.0%
2026	67.1%	68.8%	66.5%	64.1%	60.6%	55.1%	51.5%	54.9%	57.0%	73.2%	70.2%	M