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 (USC00476646) 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
2008	M	M	M	M	M	M	M	0.19	3.46	1.49	0.75	0.00
2009	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.62	0.68	3.78	0.63	1.24
2010	0.59	0.04	0.51	3.31	3.29	5.42	6.43	3.97	1.69	0.94	0.75	0.58
2011	0.01	0.52	1.23	2.96	1.79	2.33	3.83	2.03	3.07	1.51	2.14	1.30
2012	0.17	0.40	1.51	1.68	1.82	1.22	0.65	1.22	2.18	2.89	0.73	0.94
2013	0.92	0.33	0.91	4.43	3.04	4.60	1.84	1.23	1.64	0.90	1.53	0.12
2014	0.05	0.10	0.40	3.59	1.64	4.92	0.65	2.74	1.27	2.00	0.98	0.69
2015	0.07	0.09	0.25	2.41	4.17	3.03	1.70	3.66	1.98	2.26	3.49	2.93
2016	0.10	0.18	2.66	1.27	4.52	4.86	5.38	3.57	2.16	1.26	1.45	0.18
2017	1.03	0.70	0.83	2.85	3.10	2.06	6.20	1.12	0.29	3.74	0.35	0.05
2018	0.54	1.01	0.16	0.84	4.51	4.58	2.15	4.87	9.82	6.49	0.74	0.93
2019	0.57	0.95	0.76	2.30	4.61	5.49	5.53	3.83	9.49	4.89	1.02	0.70
2020	0.27	0.27	1.86	1.03	2.45	6.86	3.31	1.17	4.13	2.17	1.57	0.21
2021	0.20	0.10	1.09	0.67	1.76	2.33	3.00	2.43	1.50	2.66	0.31	0.72
2022	0.03	0.02	1.81	2.67	1.79	1.57	4.55	4.41	0.90	0.98	2.27	1.35
2023	0.83	0.90	0.47	0.96	2.05	0.43	3.08	2.37	3.06	1.85	0.19	0.95
2024	0.24	0.44	1.83	5.08	4.01	5.49	7.85	2.16	0.53	2.83	3.21	0.53
2025	M	M	1.52	1.42	2.05	5.44	6.35	7.40	0.28	1.04	0.42	0.27
2026	0.40	0.14	2.20	4.70	1.16	9.64	3.88	1.00	M	M	M	M
NCEI Climatology	1.22	1.53	2.09	3.95	4.65	5.97	5.29	4.23	4.25	2.82	2.25	1.79

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	M	M	M	M	M	M	M	5.5	6.1	8.0	9.9	11.3
2009	9.0	10.7	11.1	11.0	9.7	7.2	5.5	6.7	5.1	9.1	8.7	10.0
2010	8.5	7.8	7.9	11.1	9.8	7.2	6.3	5.8	8.2	8.5	10.8	8.8
2011	8.7	10.4	9.9	12.0	11.8	9.6	5.8	4.9	7.1	7.8	10.6	8.8
2012	10.2	9.6	11.3	10.9	10.4	8.6	6.1	5.6	7.2	8.9	8.6	9.2
2013	10.8	11.0	9.0	11.8	10.3	8.0	6.2	5.4	7.0	8.1	10.3	8.8
2014	11.7	9.7	9.5	11.8	9.9	8.7	7.4	5.6	5.2	7.6	10.0	4.9
2015	7.4	9.5	9.1	10.8	10.4	7.3	6.3	7.0	7.5	9.0	11.1	10.8
2016	9.2	9.9	9.5	11.2	8.9	7.9	6.4	5.7	8.4	7.9	9.1	10.8
2017	9.4	9.7	11.6	10.9	9.6	9.0	6.3	6.1	7.0	10.2	9.2	9.9
2018	9.8	9.3	10.2	10.1	8.1	8.5	6.4	6.6	7.6	8.8	9.4	8.6
2019	9.9	10.6	10.2	11.4	9.4	7.9	6.8	5.5	8.0	9.3	8.8	9.4
2020	9.2	9.3	10.3	10.4	9.5	8.0	5.9	5.8	8.2	8.9	10.0	7.9
2021	7.3	2.3	10.1	9.6	9.4	7.3	6.1	5.8	7.4	8.0	10.0	10.0
2022	10.0	11.2	10.2	13.1	10.3	8.6	7.0	6.1	7.2	8.7	10.7	11.1
2023	7.2	9.4	10.4	11.2	9.0	6.8	5.3	6.5	7.0	9.1	8.9	8.7
2024	8.5	9.7	11.5	11.9	8.9	8.8	5.6	6.3	6.8	9.2	8.9	6.2
2025	9.0	9.5	10.4	10.6	7.9	7.4	4.4	4.3	4.0	7.5	8.1	8.8
2026	8.6	8.4	9.0	10.8	8.3	7.2	4.0	3.2	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
2008	M	M	M	M	M	M	M	82.90	76.74	63.82	48.19	29.65
2009	23.84	36.73	49.91	61.85	72.80	81.25	78.34	77.21	73.62	52.56	51.16	28.85
2010	21.93	29.58	50.15	64.79	70.76	78.84	82.60	81.94	72.23	65.84	47.42	24.45
2011	22.30	29.17	42.45	54.86	68.12	78.14	84.49	79.55	67.88	63.24	47.90	36.94
2012	33.39	34.86	59.17	58.28	74.68	81.62	89.08	81.94	72.86	57.84	46.28	35.89
2013	30.43	28.91	34.21	53.00	69.83	76.86	80.93	80.88	76.53	60.38	42.12	24.70
2014	20.40	19.90	36.44	56.54	70.84	79.57	77.49	80.11	71.81	59.35	37.79	33.78
2015	27.34	20.85	44.48	61.79	69.68	76.84	79.72	78.81	77.30	62.79	50.32	40.16
2016	27.09	33.83	49.58	58.02	70.67	80.05	80.55	80.98	76.02	64.85	53.45	27.71
2017	29.62	42.70	44.29	60.99	67.81	80.92	81.07	76.18	77.93	63.00	44.69	30.20
2018	28.45	30.80	43.90	49.36	76.48	78.76	82.66	80.66	74.66	57.24	36.57	36.79
2019	22.81	25.78	39.58	57.89	66.65	77.16	83.72	77.14	74.81	55.87	37.46	37.96
2020	31.12	31.37	45.89	56.11	66.28	80.90	83.44	80.65	70.06	55.92	51.95	34.13
2021	28.95	24.18	48.88	59.23	67.42	82.78	81.95	83.08	77.59	63.45	46.79	38.98
2022	22.79	29.74	43.56	52.11	71.18	80.61	81.92	78.67	72.43	62.04	47.43	30.32
2023	30.73	34.82	42.50	58.40	73.35	81.58	81.22	80.69	75.55	60.73	48.03	39.95
2024	26.87	46.44	50.48	58.74	71.85	79.17	81.07	80.91	78.45	68.18	47.22	33.33
2025	28.72	29.73	51.85	59.16	69.38	81.67	82.56	78.92	77.57	65.82	47.42	29.45
2026	25.21	39.65	52.91	61.59	72.38	78.33	84.24	79.94	M	M	M	M
NCEI Climatology	25.70	30.99	43.30	57.10	68.70	78.20	81.80	80.10	73.20	60.30	44.61	31.60

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	M	M	M	M	M	M	M	61.54	58.11	43.31	33.61	11.14
2009	6.51	20.04	31.67	40.12	52.45	63.09	60.49	60.60	53.37	38.99	35.65	15.68
2010	9.59	14.47	31.74	43.42	51.77	60.38	65.07	64.34	52.04	41.43	29.66	11.04
2011	9.99	14.58	27.18	38.84	48.20	59.06	66.55	60.39	49.46	41.64	32.06	25.32
2012	17.48	23.50	41.06	38.66	52.32	59.24	67.30	58.54	48.32	38.21	29.96	22.77
2013	14.00	15.93	21.78	35.54	49.99	59.97	60.97	60.53	53.55	40.85	25.29	8.44
2014	0.51	2.47	19.66	36.26	49.37	62.03	58.00	61.25	50.50	40.11	21.43	23.16
2015	13.11	2.36	24.83	38.57	51.25	59.20	61.32	59.64	58.05	42.34	33.44	29.86
2016	13.70	20.48	33.12	38.47	49.62	60.72	63.68	63.51	57.37	46.31	35.42	16.68
2017	18.88	25.06	28.59	41.37	47.77	60.12	62.57	56.64	53.93	45.51	27.66	15.73
2018	11.77	13.22	25.91	29.40	56.54	62.25	61.95	62.66	55.13	40.00	25.22	24.28
2019	13.57	16.30	24.34	38.81	47.77	59.09	66.04	59.36	58.12	39.16	24.76	22.75
2020	19.26	14.42	32.11	35.73	48.20	60.66	65.43	60.48	51.11	37.15	33.04	19.70
2021	16.70	8.78	31.93	39.54	49.37	62.81	63.03	62.55	54.42	48.76	28.73	24.37
2022	5.15	11.52	27.95	35.52	52.89	60.92	64.57	62.50	53.53	38.80	29.80	15.95
2023	21.03	19.28	27.51	37.87	50.40	59.82	61.32	61.64	56.54	44.10	29.69	29.77
2024	17.26	25.82	31.46	40.61	51.69	61.61	62.85	61.64	54.44	43.43	34.21	19.77
2025	10.14	13.28	31.20	38.28	48.44	62.73	66.03	61.29	55.23	45.82	31.25	13.38
2026	10.10	20.74	30.19	42.70	48.21	60.28	66.17	66.43	M	M	M	M
NCEI Climatology	9.90	13.88	24.80	35.40	47.12	58.29	61.80	59.80	51.21	39.10	27.99	16.69

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	M	M	M	M	M	M	M	72.22	67.42	53.57	40.90	20.40
2009	15.18	28.39	40.79	50.98	62.63	72.17	69.42	68.90	63.50	45.77	43.40	22.27
2010	15.76	22.03	40.94	54.11	61.26	69.61	73.84	73.14	62.13	53.63	38.54	17.75
2011	16.15	21.88	34.82	46.85	58.16	68.60	75.52	69.97	58.67	52.44	39.98	31.13
2012	25.44	29.18	50.12	48.47	63.50	70.43	78.19	70.24	60.59	48.03	38.12	29.33
2013	22.22	22.42	27.99	44.27	59.91	68.42	70.95	70.71	65.04	50.62	33.71	16.57
2014	10.46	11.18	28.05	46.40	60.11	70.80	67.74	70.68	61.15	49.73	29.61	28.47
2015	20.22	11.61	34.66	50.18	60.47	68.02	70.52	69.23	67.68	52.57	41.88	35.01
2016	20.40	27.16	41.35	48.24	60.14	70.39	72.12	72.25	66.69	55.58	44.44	22.20
2017	24.25	33.88	36.44	51.18	57.79	70.52	71.82	66.41	65.93	54.25	36.17	22.97
2018	20.11	22.01	34.91	39.38	66.51	70.51	72.31	71.66	64.90	48.62	30.90	30.54
2019	18.19	21.04	31.96	48.35	57.21	68.12	74.88	68.25	66.46	47.52	31.11	30.36
2020	25.19	22.89	39.00	45.92	57.24	70.78	74.44	70.56	60.59	46.53	42.49	26.91
2021	22.83	16.48	40.40	49.38	58.40	72.79	72.49	72.81	66.01	56.10	37.76	31.68
2022	13.97	20.63	35.75	43.81	62.04	70.77	73.25	70.59	62.98	50.42	38.61	23.14
2023	25.88	27.05	35.00	48.13	61.87	70.70	71.27	71.16	66.05	52.42	38.86	34.86
2024	22.07	36.13	40.97	49.67	61.77	70.39	71.96	71.27	66.45	55.80	40.72	26.55
2025	19.43	21.50	41.52	48.72	58.91	72.20	74.30	70.10	66.40	55.82	39.33	21.41
2026	17.65	30.20	41.55	52.15	60.29	69.30	75.20	73.18	M	M	M	M
NCEI Climatology	17.80	22.43	34.05	46.25	57.91	68.25	71.80	69.95	62.20	49.70	36.30	24.15

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
2008	M	M	M	M	M	M	M	76.3%	79.5%	72.9%	76.2%	82.6%
2009	79.0%	77.9%	72.8%	62.9%	64.3%	71.5%	77.5%	80.0%	76.4%	81.6%	75.8%	84.1%
2010	83.1%	78.6%	72.6%	62.8%	66.8%	77.5%	77.6%	78.7%	73.3%	61.0%	74.2%	83.9%
2011	79.2%	78.6%	72.1%	70.9%	64.9%	68.9%	74.1%	74.5%	74.3%	65.7%	74.7%	82.6%
2012	76.4%	79.4%	70.5%	65.3%	58.6%	57.8%	63.0%	63.2%	62.1%	68.7%	73.6%	81.6%
2013	74.7%	78.8%	74.6%	70.4%	66.1%	70.3%	72.3%	73.1%	72.1%	71.6%	74.0%	79.9%
2014	73.4%	72.6%	71.2%	65.7%	63.4%	71.9%	74.4%	79.5%	76.5%	73.3%	76.9%	83.7%
2015	80.9%	72.5%	68.1%	57.4%	73.5%	76.2%	77.3%	78.9%	77.5%	73.1%	79.4%	88.9%
2016	83.5%	79.1%	79.5%	68.3%	64.7%	72.6%	84.1%	87.5%	83.4%	81.6%	81.2%	85.2%
2017	87.7%	79.3%	73.7%	72.6%	73.8%	67.7%	84.0%	84.1%	75.2%	78.7%	77.5%	75.7%
2018	82.3%	81.0%	67.2%	67.1%	76.3%	83.6%	80.8%	87.3%	83.7%	81.5%	84.1%	89.0%
2019	85.3%	87.7%	75.4%	74.8%	80.5%	79.3%	82.6%	84.2%	90.7%	82.6%	88.0%	88.2%
2020	89.9%	79.3%	84.0%	71.1%	74.1%	73.3%	84.4%	82.6%	83.0%	72.7%	79.7%	86.8%
2021	91.3%	83.6%	73.9%	66.3%	73.0%	71.3%	82.3%	83.3%	76.2%	85.5%	74.2%	80.0%
2022	82.4%	79.1%	76.5%	75.2%	72.0%	69.3%	80.6%	86.2%	79.6%	65.1%	71.8%	78.7%
2023	87.1%	74.3%	70.2%	58.8%	48.0%	51.5%	72.0%	74.8%	70.8%	66.2%	63.4%	82.0%
2024	82.5%	43.8%	58.2%	68.0%	66.4%	72.8%	78.3%	76.9%	67.6%	56.5%	82.8%	78.0%
2025	65.7%	69.7%	65.2%	66.3%	63.4%	72.4%	84.5%	82.8%	74.5%	72.4%	75.8%	83.1%
2026	75.1%	72.5%	70.0%	68.4%	46.9%	70.7%	75.3%	80.0%	M	M	M	M