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	0.00	M	M	M	M	M	M	M	M	M	M
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	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	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

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	11.4	11.9	M	10.9	10.2	8.5	7.4	8.4	7.4	12.4	12.5	12.0
2002	12.0	13.8	12.8	11.8	10.4	6.8	7.4	7.5	7.6	7.0	11.7	11.4
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	7.5	M	M	M	M	M	M	M	M	M	M
2005	13.1	12.7	11.7	12.8	8.6	5.9	6.8	M	M	11.1	12.7	10.1
2006	11.3	M	M	M	M	M	M	M	M	M	M	29.0
2007	14.4	13.9	13.7	11.9	11.8	7.4	5.7	7.2	6.7	11.2	10.1	9.7
2008	11.2	11.4	13.5	13.8	9.7	6.4	5.5	4.8	7.9	10.7	9.4	17.4
2009	13.9	12.9	13.5	11.7	8.2	5.1	5.3	6.5	4.4	3.9	8.9	7.4
2010	10.9	12.8	11.6	6.5	6.3	4.3	3.2	3.0	3.6	7.3	5.6	6.0
2011	6.1	5.1	6.8	5.5	8.6	13.7	4.6	3.0	3.8	6.0	5.2	5.5
2012	6.0	6.6	6.7	6.6	6.2	3.5	3.9	3.8	3.6	4.2	5.5	5.1
2013	7.4	6.4	8.4	6.3	5.9	3.5	3.2	4.1	2.6	3.9	6.5	6.7
2014	7.4	6.5	7.2	7.1	7.0	3.3	4.1	3.7	3.0	4.1	5.9	5.2
2015	7.9	8.1	8.7	6.2	5.6	4.9	4.1	5.3	4.3	5.4	6.2	6.9
2016	8.0	9.5	7.5	8.0	7.1	4.1	4.6	4.2	3.8	5.4	6.8	5.7
2017	6.9	6.3	8.3	7.3	5.4	3.8	4.1	3.5	3.4	6.1	6.5	5.8
2018	9.9	6.4	9.6	8.5	7.5	3.7	5.4	4.7	3.9	4.7	5.7	6.9
2019	7.6	7.4	9.8	8.4	5.2	4.4	4.8	4.3	4.7	4.3	6.0	7.2
2020	7.5	8.7	8.5	7.0	6.7	5.4	5.0	5.1	5.2	6.7	8.6	7.3
2021	7.1	7.4	9.3	7.7	6.3	4.2	5.3	4.8	4.3	5.4	6.5	5.8
2022	8.5	10.0	9.6	8.5	6.3	5.0	5.0	4.7	5.2	6.2	6.1	5.8
2023	6.9	8.7	7.5	7.7	7.4	5.7	5.0	5.2	5.1	5.3	8.1	7.4
2024	7.5	8.0	8.3	8.6	5.3	4.4	4.2	4.4	3.4	5.8	5.6	6.3
2025	7.2	7.8	8.0	9.0	6.2	4.5	4.5	M	M	M	M	M

Average Daily High Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	72.20	77.36	M	73.85	75.20	78.80	M	77.00	M	M	M	57.20
2001	71.54	73.35	77.00	82.09	84.23	80.35	82.30	82.34	79.26	77.78	75.39	73.29
2002	73.79	71.98	78.05	81.98	84.89	80.83	79.99	80.56	78.97	80.53	72.33	72.99
2003	70.27	79.25	81.30	87.01	85.69	81.10	84.27	80.25	80.93	76.88	72.80	69.20
2004	M	73.40	M	M	M	77.23	75.86	75.90	74.17	75.07	65.88	63.50
2005	73.98	75.97	83.33	81.98	83.39	82.52	79.38	M	M	75.32	73.70	74.74
2006	73.69	65.56	67.25	74.72	78.20	76.80	81.08	84.05	81.37	78.80	70.98	73.32
2007	87.80	91.89	94.94	98.00	97.55	94.58	93.66	90.88	90.26	85.25	86.36	88.32
2008	88.79	93.39	93.66	98.24	98.66	88.82	89.95	90.76	88.40	85.94	64.79	65.30
2009	84.20	91.27	92.74	98.30	96.51	93.50	93.55	92.15	91.64	90.35	83.30	85.71
2010	83.85	88.70	91.69	96.68	97.15	91.40	88.79	87.74	86.30	87.57	85.58	82.52
2011	86.06	82.47	84.50	87.74	89.52	82.12	80.46	83.53	86.36	83.04	85.46	84.03
2012	86.70	87.99	91.92	94.52	93.84	88.40	88.96	88.15	88.58	87.45	85.34	87.63
2013	84.61	91.08	89.72	96.98	93.66	89.18	88.21	88.85	86.00	87.39	84.26	84.08
2014	81.24	90.24	94.30	95.48	90.76	87.44	90.18	90.47	87.20	84.90	83.06	83.91
2015	81.35	84.84	87.92	94.64	92.62	88.34	88.73	90.18	86.60	86.35	85.88	85.42
2016	81.99	82.77	92.15	95.36	96.10	87.80	89.31	87.28	85.64	85.54	82.88	85.83
2017	85.42	90.31	90.76	93.44	92.21	86.24	89.31	89.25	87.38	85.59	84.92	84.37
2018	80.02	90.76	94.36	93.86	94.65	89.30	91.86	89.77	88.40	87.28	85.58	84.90
2019	84.66	92.30	91.52	95.36	96.16	90.44	91.17	91.28	89.36	87.34	85.34	85.59
2020	86.93	89.60	94.42	98.84	95.17	88.16	90.88	89.31	87.26	85.48	85.28	83.33
2021	85.88	89.41	92.21	95.84	92.45	88.88	89.60	89.25	87.62	88.73	84.14	88.55
2022	85.94	86.32	91.28	95.84	94.19	87.20	89.54	88.38	85.34	85.25	85.64	84.72
2023	87.68	88.64	93.84	97.04	97.61	96.44	90.47	90.12	89.18	86.75	84.98	84.03
2024	88.09	88.79	96.74	97.40	101.10	91.70	89.89	89.54	87.74	85.36	86.90	85.30
2025	86.70	89.99	94.65	94.76	97.67	89.00	89.46	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2000	72.20	72.20	M	71.60	72.05	75.20	M	75.20	M	M	M	55.40
2001	55.85	55.97	66.20	50.89	59.22	55.40	48.55	59.51	54.17	58.39	58.85	59.88
2002	56.47	55.93	59.52	54.99	50.85	49.18	55.47	52.84	50.65	50.91	51.96	56.54
2003	55.64	55.34	56.11	59.43	55.54	48.70	48.92	55.39	43.13	54.71	61.45	56.33
2004	M	60.80	M	M	M	75.87	73.49	74.10	72.46	72.24	61.89	59.21
2005	57.03	60.09	62.08	63.92	66.95	68.06	64.63	M	M	63.47	61.40	59.81
2006	58.13	59.13	61.09	70.76	73.16	75.40	77.28	80.30	79.83	78.80	66.57	65.97
2007	62.48	62.60	66.95	70.28	73.11	72.86	71.89	71.19	71.66	68.00	63.56	62.43
2008	59.99	64.21	65.15	71.66	73.63	71.60	69.51	70.79	71.72	68.70	60.67	61.56
2009	60.86	61.64	64.11	69.62	72.06	72.20	71.31	71.25	71.42	69.80	64.40	62.48
2010	59.64	63.50	63.99	70.28	73.75	72.38	71.89	72.18	71.42	65.39	62.12	56.10
2011	61.79	70.59	72.02	72.31	77.16	76.24	72.54	75.07	69.44	66.37	61.52	58.42
2012	58.77	63.41	64.17	64.64	71.89	70.34	68.06	69.57	69.44	67.13	59.60	58.59
2013	61.32	61.19	62.54	67.88	71.43	70.46	69.51	69.68	70.16	70.26	66.50	61.73
2014	57.03	62.28	65.97	69.14	70.79	70.70	68.87	68.99	70.04	68.41	61.82	57.95
2015	58.59	57.46	63.70	70.04	69.34	68.72	67.13	68.17	68.78	68.41	66.86	62.48
2016	58.88	57.70	65.97	69.56	72.53	70.10	68.75	69.10	68.12	66.61	63.86	60.92
2017	56.62	59.96	64.63	66.68	70.55	69.62	67.77	69.86	70.88	66.78	59.18	53.54
2018	56.39	60.35	64.23	64.82	72.35	70.34	69.16	69.10	69.74	68.81	65.90	60.63
2019	59.87	61.96	65.50	67.58	72.01	71.24	69.80	69.80	70.88	69.45	64.76	60.39
2020	61.90	62.60	67.25	72.56	73.40	71.12	71.31	71.37	70.82	68.75	67.88	59.58
2021	61.44	59.64	64.92	70.22	71.25	70.46	70.21	70.03	70.22	69.68	62.42	61.61
2022	60.57	60.80	65.50	71.06	71.66	70.04	70.44	70.03	70.58	68.70	66.32	61.44
2023	60.39	61.25	67.59	71.00	73.05	73.16	71.31	71.08	70.88	70.67	66.26	61.55
2024	62.31	59.43	68.52	71.72	74.56	72.86	71.14	70.73	71.42	69.22	65.60	60.68
2025	60.39	64.34	64.98	70.10	74.15	71.78	70.02	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
2000	72.20	75.20	M	72.73	73.62	77.00	M	76.10	M	M	M	56.30
2001	63.70	64.66	71.60	66.49	71.72	67.87	65.42	70.92	66.71	68.09	67.12	66.58
2002	65.13	63.95	68.78	68.48	67.87	65.01	67.73	66.70	64.81	65.72	62.15	64.77
2003	62.96	67.29	68.70	73.22	70.78	65.44	66.52	68.63	61.99	65.80	66.93	62.75
2004	M	67.10	M	M	M	76.55	74.68	75.00	73.31	73.66	63.89	61.35
2005	65.50	68.03	72.70	72.95	75.17	75.29	72.01	M	M	69.39	67.55	67.27
2006	65.91	62.34	64.17	72.74	75.68	76.10	79.18	82.18	80.60	78.80	68.78	69.64
2007	75.14	77.25	80.95	84.14	85.33	83.72	82.78	81.04	80.96	76.62	74.96	75.37
2008	74.39	78.80	79.41	84.95	86.15	80.21	79.73	80.77	80.06	77.32	62.73	63.43
2009	72.53	76.45	78.42	83.96	84.29	82.85	82.43	81.70	81.53	80.08	73.85	74.10
2010	71.75	76.10	77.84	83.48	85.45	81.89	80.34	79.96	78.86	76.48	73.85	69.31
2011	73.93	76.53	78.26	80.02	83.34	79.18	76.50	79.30	77.90	74.71	73.49	71.22
2012	72.73	75.70	78.05	79.58	82.86	79.37	78.51	78.86	79.01	77.29	72.47	73.11
2013	72.96	76.13	76.13	82.43	82.55	79.82	78.86	79.26	78.08	78.83	75.38	72.91
2014	69.13	76.26	80.14	82.31	80.77	79.07	79.53	79.73	78.62	76.65	72.44	70.93
2015	69.97	71.15	75.81	82.34	80.98	78.53	77.93	79.18	77.69	77.38	76.37	73.95
2016	70.44	70.23	79.06	82.46	84.32	78.95	79.03	78.19	76.88	76.07	73.37	73.37
2017	71.02	75.14	77.70	80.06	81.38	77.93	78.54	79.55	79.13	76.19	72.05	68.96
2018	68.20	75.55	79.29	79.34	83.50	79.82	80.51	79.44	79.07	78.05	75.74	72.76
2019	72.27	77.13	78.51	81.47	84.08	80.84	80.48	80.54	80.12	78.39	75.05	72.99
2020	74.42	76.10	80.83	85.70	84.29	79.64	81.09	80.34	79.04	77.12	76.58	71.45
2021	73.66	74.52	78.57	83.03	81.85	79.67	79.90	79.64	78.92	79.21	73.28	75.08
2022	73.25	73.56	78.39	83.45	82.92	78.62	79.99	79.21	77.96	76.97	75.98	73.08
2023	74.04	74.94	80.72	84.02	85.33	84.80	80.89	80.60	80.03	78.71	75.62	72.79
2024	75.20	74.11	82.63	84.56	87.83	82.28	80.51	80.14	79.58	77.29	76.25	72.99
2025	73.55	77.16	79.82	82.43	85.91	80.39	79.74	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
2000	M	M	M	M	M	M	M	M	M	M	M	M
2001	80.3%	84.3%	M	71.3%	78.8%	80.5%	82.7%	83.9%	87.5%	87.8%	84.3%	88.1%
2002	83.7%	87.1%	76.7%	77.1%	76.9%	84.2%	83.8%	82.7%	86.4%	84.7%	85.7%	85.3%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	63.5%	M	M	M	M	M	M	M	M	M	M
2005	80.5%	80.2%	72.5%	74.0%	77.4%	80.0%	84.6%	M	M	86.1%	85.7%	83.1%
2006	84.6%	M	M	M	M	M	M	M	M	M	M	72.1%
2007	69.3%	64.2%	61.6%	62.3%	61.9%	69.2%	71.0%	77.7%	76.4%	76.7%	72.5%	69.1%
2008	66.7%	63.8%	60.0%	54.5%	56.0%	76.6%	77.5%	79.1%	77.7%	75.0%	64.9%	66.3%
2009	65.3%	61.6%	58.7%	55.3%	63.6%	71.3%	71.8%	74.9%	77.7%	77.1%	76.4%	72.9%
2010	69.4%	67.3%	61.5%	62.4%	59.8%	76.9%	81.3%	84.6%	84.1%	73.3%	71.8%	69.9%
2011	66.6%	60.7%	52.1%	57.4%	60.8%	63.4%	80.9%	84.1%	81.4%	78.5%	73.9%	73.2%
2012	69.3%	68.0%	60.1%	55.3%	65.6%	77.8%	77.7%	80.9%	79.6%	76.1%	68.8%	70.4%
2013	68.8%	62.8%	59.0%	54.6%	61.4%	77.2%	79.0%	76.7%	84.2%	79.5%	74.7%	72.1%
2014	69.2%	64.5%	59.3%	57.4%	67.0%	79.1%	75.3%	75.8%	82.2%	80.9%	73.3%	73.0%
2015	69.9%	63.9%	62.4%	60.7%	65.9%	73.7%	74.2%	72.9%	79.1%	74.3%	73.6%	69.6%
2016	65.6%	62.8%	57.8%	53.7%	58.9%	75.8%	73.9%	78.2%	83.3%	78.6%	74.9%	72.3%
2017	67.0%	61.4%	56.7%	57.0%	65.2%	78.3%	77.1%	79.3%	83.0%	77.9%	72.2%	72.1%
2018	69.7%	63.3%	57.9%	60.0%	60.5%	76.8%	68.7%	77.0%	81.1%	79.1%	75.5%	70.0%
2019	69.4%	61.8%	60.5%	53.0%	64.6%	76.4%	74.8%	77.2%	77.2%	80.2%	75.5%	71.1%
2020	67.0%	62.3%	56.5%	54.4%	64.1%	76.6%	75.3%	77.4%	81.2%	76.8%	73.7%	72.1%
2021	69.0%	59.6%	57.5%	54.2%	68.5%	78.2%	75.3%	78.1%	80.4%	75.7%	71.7%	69.7%
2022	66.8%	64.0%	56.8%	55.3%	63.3%	79.3%	77.5%	80.6%	83.3%	78.3%	77.1%	72.3%
2023	67.8%	62.9%	57.1%	51.9%	58.2%	66.7%	77.3%	78.2%	79.1%	79.1%	74.4%	71.5%
2024	68.2%	61.5%	53.3%	53.6%	53.6%	77.2%	79.1%	79.1%	83.9%	78.7%	73.8%	71.2%
2025	70.7%	64.8%	58.5%	52.9%	57.8%	79.8%	76.1%	M	M	M	M	M