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 (USW00013966) 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
2007	M	M	M	0.78	2.74	6.55	0.81	1.32	0.31	0.26	0.09	0.41
2008	0.03	0.41	1.74	1.72	2.98	1.32	1.19	3.71	1.01	2.84	0.22	0.55
2009	0.00	0.37	0.24	3.45	1.64	1.39	2.19	0.89	2.54	2.93	0.11	0.92
2010	1.11	1.47	0.95	3.77	3.59	1.80	2.10	0.74	4.07	1.27	0.14	0.34
2011	0.20	0.06	0.00	0.03	0.17	0.03	0.00	0.44	0.57	3.89	1.03	1.20
2012	2.21	0.48	2.99	2.61	1.28	2.58	0.10	1.24	0.07	1.28	0.23	0.30
2013	0.56	1.89	0.24	1.60	1.59	1.73	0.25	2.33	3.10	1.51	0.30	0.83
2014	M	0.16	1.56	2.22	0.71	3.48	5.97	1.53	1.68	1.89	3.37	0.38
2015	1.89	0.25	1.53	4.28	14.03	3.72	2.53	0.69	0.75	4.79	4.27	1.68
2016	0.15	1.12	0.90	4.50	7.07	2.79	1.15	1.50	8.54	4.47	1.64	0.74
2017	1.79	1.88	0.53	1.00	2.91	3.07	2.37	2.33	4.64	1.22	0.00	0.72
2018	0.03	2.27	1.75	1.70	3.63	0.82	0.42	1.85	5.11	8.21	0.30	2.89
2019	1.12	0.21	1.78	4.14	4.14	1.96	0.12	0.01	3.20	0.60	1.55	0.83
2020	1.71	1.58	4.14	0.33	3.91	4.06	2.74	2.01	2.92	0.16	0.34	0.48
2021	0.71	0.15	1.26	5.12	3.18	3.07	1.12	2.07	0.07	2.34	0.86	0.13
2022	0.29	0.53	0.44	0.02	0.02	0.43	M	0.02	M	2.86	1.58	1.38
2023	M	0.25	3.96	3.61	4.22	2.66	3.02	0.50	0.88	8.42	0.23	1.20
2024	2.76	1.05	1.40	6.10	6.67	1.43	1.24	0.42	0.78	M	6.19	0.27
2025	0.31	0.01	1.83	8.29	4.10	2.00	0.68	4.38	1.16	0.54	1.54	0.01
2026	0.74	0.41	0.21	3.50	1.41	0.15	M	M	M	M	M	M
NCEI Climatology	1.20	1.46	2.02	2.50	3.81	3.35	2.02	2.53	2.99	2.88	1.63	1.56

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	10.5	7.8	8.0	6.0	8.3	7.5	9.0	8.1	7.9
2008	9.9	9.4	11.7	12.0	11.2	12.9	8.5	6.5	6.2	8.6	8.2	10.3
2009	8.3	10.7	12.1	12.4	8.3	9.1	7.3	9.1	8.5	9.3	6.8	7.4
2010	8.0	7.9	10.7	11.7	9.8	10.9	8.9	8.8	9.6	7.1	10.1	8.5
2011	7.6	9.6	10.9	12.6	13.6	13.8	8.6	9.3	9.7	9.0	9.4	7.7
2012	9.0	9.1	9.8	10.5	11.6	9.8	8.4	8.1	7.9	8.8	8.4	8.3
2013	7.4	9.1	10.5	11.6	12.7	10.5	7.9	7.2	7.1	9.1	9.7	7.5
2014	10.3	9.3	11.8	11.4	10.2	10.7	7.8	7.0	7.2	8.3	9.5	7.8
2015	8.2	9.0	7.3	9.7	9.0	7.9	8.3	7.6	7.8	7.5	8.9	8.6
2016	7.7	9.3	11.0	10.0	10.5	8.7	10.8	8.6	8.8	8.7	7.8	8.2
2017	8.4	9.2	10.3	10.8	10.1	9.7	7.3	7.4	8.5	9.8	8.9	7.8
2018	8.8	9.0	10.4	11.6	10.8	11.3	7.7	8.8	8.8	8.9	8.3	8.3
2019	8.6	9.2	9.5	10.5	10.5	9.5	9.3	9.0	9.8	10.3	8.4	7.6
2020	8.7	9.2	9.2	10.4	10.6	11.2	9.5	8.6	7.6	9.5	9.1	8.1
2021	7.8	9.5	11.6	11.0	9.8	9.0	8.0	9.7	8.7	9.8	8.9	8.2
2022	8.4	9.3	10.7	13.4	13.5	10.5	9.2	9.4	9.2	8.7	9.5	8.5
2023	6.4	9.2	10.5	10.8	8.6	9.5	9.3	9.1	9.0	10.4	7.9	8.1
2024	8.3	9.5	10.6	11.1	10.2	10.6	9.8	9.1	8.3	9.9	8.7	8.0
2025	7.9	9.1	11.4	11.1	9.1	11.9	9.7	8.5	8.1	8.9	8.4	8.6
2026	8.4	8.6	11.1	10.5	9.1	12.1	7.8	9.0	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
2007	M	M	M	80.76	82.75	88.22	90.43	95.41	89.78	81.74	68.06	54.41
2008	56.74	62.85	69.80	75.98	85.77	96.26	97.15	93.61	84.98	77.87	68.00	57.49
2009	56.97	67.21	72.32	79.10	81.17	94.52	97.42	97.57	85.48	69.70	69.90	49.89
2010	51.66	48.56	66.01	76.24	83.83	95.35	94.15	100.77	89.59	80.81	68.56	59.45
2011	53.23	59.76	72.60	84.20	87.51	102.38	104.93	105.02	89.48	78.05	65.12	52.03
2012	59.35	58.94	72.53	80.18	88.50	94.22	99.94	97.61	88.52	74.21	71.12	57.32
2013	55.46	58.87	68.27	74.18	85.46	93.67	94.53	96.94	92.37	77.80	61.72	51.06
2014	56.49	53.45	65.94	77.06	87.03	92.39	91.70	97.60	89.41	83.09	61.74	54.01
2015	46.69	57.94	67.37	76.27	80.76	92.06	96.94	97.62	93.45	81.01	67.11	62.72
2016	56.13	66.82	71.33	77.11	81.81	92.86	99.20	95.74	89.80	84.53	69.41	55.42
2017	58.30	68.03	74.39	77.18	84.30	89.48	97.05	91.36	88.10	78.35	69.82	54.62
2018	56.19	57.43	71.71	73.45	89.60	97.12	100.24	96.88	83.99	71.88	62.64	53.11
2019	52.48	55.34	62.35	76.21	80.58	88.98	92.83	100.37	93.34	74.83	62.97	59.57
2020	58.60	56.91	69.73	74.36	84.35	92.98	95.78	97.00	82.58	79.76	69.27	58.49
2021	53.80	46.84	69.84	71.29	77.56	89.79	93.09	94.05	92.75	81.80	68.12	70.47
2022	56.43	54.74	69.40	80.48	88.32	95.47	103.21	100.73	89.30	79.02	61.24	56.17
2023	62.09	58.70	66.44	74.00	83.30	94.74	100.65	104.16	91.89	73.61	67.26	60.28
2024	49.14	64.89	70.25	77.07	84.48	93.50	95.89	101.20	90.69	87.45	68.78	60.59
2025	50.81	56.45	75.53	76.84	82.20	90.84	94.94	92.44	89.86	83.22	71.25	62.42
2026	54.90	66.26	73.83	83.78	86.40	92.51	98.70	102.35	M	M	M	M
NCEI Climatology	54.70	59.12	67.90	76.00	83.90	91.99	97.20	96.60	88.30	77.31	65.20	55.70

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	60.80	65.79	71.72	73.12	74.21	68.18	57.08	45.44	33.16
2008	31.54	34.61	43.90	50.78	62.02	72.80	73.81	72.41	62.72	52.61	42.62	32.06
2009	30.43	39.73	46.97	53.30	60.64	71.50	73.87	73.36	65.68	51.42	45.01	29.11
2010	31.01	32.75	42.13	54.13	62.22	73.25	75.05	75.74	69.13	53.45	42.17	34.29
2011	28.06	33.13	45.65	56.12	61.26	75.92	80.60	81.01	64.52	54.30	43.58	35.02
2012	35.37	38.02	50.64	57.80	64.81	70.40	75.03	73.23	65.36	52.50	43.76	35.31
2013	34.03	36.67	41.83	47.83	61.56	71.14	72.56	73.41	68.31	54.96	40.62	28.47
2014	29.55	31.18	39.03	52.90	60.78	71.56	71.32	72.08	67.03	56.53	37.99	39.69
2015	23.56	25.94	45.39	55.61	62.04	71.77	75.15	73.73	70.26	57.58	45.65	38.70
2016	34.08	40.66	48.93	55.27	61.21	71.76	76.16	74.12	69.26	61.98	48.52	33.35
2017	34.19	42.61	48.36	53.91	60.34	69.51	73.29	71.45	65.60	53.87	45.47	34.85
2018	28.77	33.16	45.77	45.80	66.26	73.89	74.76	73.98	67.72	55.29	38.40	36.00
2019	38.55	41.50	41.84	53.24	61.57	68.19	72.39	77.05	72.23	50.28	37.96	35.57
2020	36.55	34.52	49.89	50.23	61.16	68.24	74.56	71.83	62.88	52.28	44.58	34.77
2021	35.31	26.16	46.45	50.66	60.58	69.61	72.01	73.05	66.14	56.63	43.55	42.48
2022	28.23	29.69	40.73	53.60	64.42	72.22	78.02	78.72	64.07	54.22	41.49	36.22
2023	43.31	37.10	44.49	50.38	61.75	70.13	74.81	77.60	71.75	51.63	43.49	37.63
2024	29.00	41.38	47.16	54.94	64.92	73.10	73.16	76.76	66.38	60.53	47.08	39.05
2025	29.43	31.58	47.55	54.24	61.38	72.59	73.60	72.38	66.04	58.54	46.37	36.27
2026	30.32	45.62	46.81	59.94	60.51	73.29	74.76	77.45	M	M	M	M
NCEI Climatology	30.01	33.72	41.61	49.60	59.70	68.30	72.20	71.50	63.80	51.91	40.19	31.80

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	M	M	M	70.78	74.27	79.97	81.78	84.81	78.98	69.41	56.75	43.79
2008	44.14	48.73	56.85	63.38	73.89	84.53	85.48	83.01	73.85	65.24	55.31	44.77
2009	43.70	53.47	59.64	66.20	70.90	83.01	85.65	85.47	75.58	60.56	57.46	39.50
2010	41.34	40.66	54.07	65.19	73.03	84.30	84.60	88.25	79.36	67.13	55.36	46.87
2011	40.65	46.44	59.12	70.16	74.39	89.15	92.76	93.01	77.00	66.17	54.35	43.53
2012	47.36	48.48	61.58	68.99	76.65	82.31	87.48	85.42	76.94	63.35	57.44	46.31
2013	44.75	47.77	55.05	61.01	73.51	82.41	83.54	85.18	80.34	66.38	51.17	39.76
2014	43.02	42.32	52.49	64.98	73.91	81.97	81.51	84.84	78.22	69.81	49.87	46.85
2015	35.13	41.94	56.38	65.94	71.40	81.91	86.05	85.68	81.85	69.29	56.38	50.71
2016	45.11	53.74	60.13	66.19	71.51	82.31	87.68	84.93	79.53	73.26	58.97	44.38
2017	46.24	55.32	61.37	65.55	72.32	79.49	85.17	81.41	76.85	66.11	57.64	44.73
2018	42.48	45.30	58.74	59.62	77.93	85.51	87.50	85.43	75.86	63.58	50.52	44.55
2019	45.52	48.42	52.10	64.72	71.08	78.58	82.61	88.71	82.79	62.56	50.46	47.57
2020	47.58	45.71	59.81	62.29	72.75	80.61	85.17	84.42	72.73	66.02	56.92	46.63
2021	44.56	36.50	58.15	60.98	69.07	79.70	82.55	83.55	79.44	69.21	55.84	56.48
2022	42.33	42.21	55.07	67.04	76.37	83.84	90.61	89.73	76.68	66.62	51.37	46.20
2023	52.70	47.90	55.46	62.19	72.52	82.43	87.73	90.88	81.82	62.62	55.37	48.95
2024	39.07	53.13	58.71	66.00	74.70	83.30	84.53	88.98	78.54	73.99	57.93	49.82
2025	40.12	44.02	61.54	65.54	71.79	81.71	84.27	82.41	77.95	70.88	58.81	49.35
2026	42.61	55.94	60.32	71.86	73.45	82.90	86.73	89.90	M	M	M	M
NCEI Climatology	42.35	46.42	54.76	62.80	71.80	80.15	84.70	84.05	76.05	64.61	52.70	43.75

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
2007	M	M	M	60.7%	72.7%	70.7%	68.5%	58.1%	60.3%	52.2%	55.9%	65.9%
2008	52.2%	50.6%	51.1%	52.1%	52.5%	48.8%	47.2%	59.0%	62.8%	58.4%	54.1%	53.1%
2009	48.6%	48.5%	52.2%	50.7%	68.6%	57.9%	52.7%	51.5%	65.1%	73.0%	67.3%	68.3%
2010	70.1%	73.6%	60.6%	61.1%	64.4%	60.2%	65.5%	49.1%	65.4%	53.0%	54.2%	53.9%
2011	58.7%	59.8%	51.9%	43.5%	48.6%	36.9%	32.4%	32.6%	40.1%	54.9%	61.0%	72.0%
2012	58.6%	64.1%	66.2%	62.7%	53.9%	54.5%	43.9%	45.0%	53.9%	59.0%	53.2%	57.9%
2013	64.5%	59.9%	49.7%	60.1%	55.3%	51.4%	52.6%	50.4%	50.9%	62.6%	60.0%	67.5%
2014	42.5%	60.4%	50.3%	51.1%	49.1%	58.8%	60.2%	51.4%	59.3%	54.4%	58.8%	74.0%
2015	56.2%	63.9%	69.6%	68.4%	75.0%	63.8%	58.6%	52.7%	54.5%	54.6%	67.2%	66.1%
2016	63.2%	50.5%	55.9%	61.0%	65.3%	63.5%	55.3%	56.2%	63.0%	65.9%	68.0%	60.7%
2017	58.3%	58.8%	60.4%	67.2%	57.2%	69.1%	60.7%	70.1%	63.1%	58.2%	63.2%	62.0%
2018	49.9%	65.8%	56.5%	54.5%	63.7%	55.5%	49.8%	53.9%	78.5%	76.9%	61.3%	69.5%
2019	68.4%	69.0%	60.1%	64.6%	73.5%	68.4%	61.1%	53.8%	63.1%	57.5%	66.1%	63.1%
2020	68.3%	63.0%	70.9%	63.5%	63.5%	58.9%	64.3%	54.7%	72.0%	58.3%	61.5%	59.8%
2021	66.3%	66.3%	56.0%	61.4%	74.7%	70.3%	66.3%	63.6%	53.5%	56.9%	59.1%	53.0%
2022	48.1%	55.9%	46.4%	51.7%	59.4%	54.9%	42.0%	43.1%	34.1%	52.3%	68.0%	61.7%
2023	55.8%	50.4%	59.7%	57.5%	69.5%	62.1%	49.6%	39.1%	54.7%	61.1%	64.6%	61.3%
2024	65.2%	59.2%	63.8%	64.8%	68.5%	64.6%	57.2%	47.7%	57.3%	46.2%	67.0%	66.6%
2025	56.8%	61.4%	46.2%	64.5%	65.6%	67.3%	63.2%	67.4%	60.1%	57.4%	59.3%	60.9%
2026	53.4%	52.2%	57.5%	71.1%	66.0%	66.4%	55.7%	40.3%	M	M	M	M