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 (USC00331288) 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	1.90	1.99	2.77	0.35	2.49	3.42	2.83	1.37	1.87	2.64	3.62
2008	3.21	2.36	3.91	1.65	4.14	3.65	2.11	2.23	0.17	1.34	1.46	3.25
2009	1.84	1.48	1.01	1.30	2.04	1.84	2.73	2.73	2.24	2.88	0.64	1.95
2010	0.35	0.09	0.56	0.21	0.90	3.64	1.47	3.23	2.26	0.82	2.11	0.87
2011	0.62	0.14	1.70	5.16	0.05	1.02	1.67	0.76	1.09	1.01	2.81	1.46
2012	2.11	2.17	1.21	0.28	1.31	0.02	2.04	0.36	0.01	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	0.18	1.62	1.11	2.29
2015	0.95	0.53	1.25	0.63	0.50	3.69	3.55	1.41	1.18	1.02	0.86	3.00
2016	0.35	2.09	1.69	1.63	1.05	2.97	3.41	0.72	1.32	1.75	0.19	0.05
2017	0.01	0.06	1.63	2.81	1.48	3.60	6.69	2.88	1.13	2.16	3.34	1.05
2018	1.41	2.26	2.16	3.24	2.51	5.56	0.91	2.44	0.74	0.41	0.16	0.09
2019	0.08	0.04	1.16	3.34	1.63	M	1.58	2.32	0.48	0.90	0.51	2.97
2020	1.02	1.40	2.55	4.08	1.18	M	0.72	0.98	2.76	2.00	1.41	1.15
2021	1.42	1.02	0.55	0.30	0.86	3.33	3.10	5.80	2.71	4.46	0.98	3.62
2022	2.46	2.71	1.84	1.40	2.49	1.62	M	M	M	M	M	M
2023	0.02	0.01	0.01	0.01	0.01	M	M	2.29	0.75	2.07	0.61	0.86
2024	1.27	0.95	1.94	0.93	0.04	M	M	M	M	M	M	M
2025	M	M	M	M	M	M	M	M	2.51	1.53	2.24	1.05
2026	0.86	0.62	5.28	1.64	4.50	3.68	3.38	8.53	2.96	M	M	M
NCEI Climatology	3.23	3.38	3.88	3.73	4.26	4.53	4.17	3.65	3.13	3.12	2.82	3.36

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	7.6	5.3	5.7	7.1	3.4	3.4	3.1	2.9	2.3	3.4	4.7	4.9
2008	6.0	5.8	5.7	4.8	4.6	4.0	2.6	3.0	3.2	3.6	4.1	6.3
2009	5.3	6.5	5.7	6.0	3.5	3.4	2.8	2.6	3.0	3.7	3.7	5.5
2010	6.0	6.1	3.8	4.6	4.0	3.8	2.5	1.7	3.5	3.8	5.0	6.2
2011	5.7	7.1	6.7	7.9	4.9	5.2	2.7	3.2	3.4	4.1	5.3	4.0
2012	6.6	5.2	4.8	5.5	2.9	3.6	3.1	2.4	2.5	4.9	3.0	5.1
2013	5.5	5.9	6.4	5.6	4.6	3.2	2.8	2.3	2.0	2.9	4.6	5.2
2014	6.2	5.3	6.3	5.9	4.2	3.5	3.7	2.7	3.2	4.4	5.7	4.5
2015	5.2	5.8	5.0	4.9	3.5	4.2	2.6	2.2	2.5	4.7	4.5	4.4
2016	5.7	6.3	5.2	5.7	3.7	3.7	2.9	2.5	2.8	3.6	3.4	5.3
2017	5.8	5.4	6.3	5.7	5.5	3.7	2.9	2.2	2.6	3.1	4.2	4.6
2018	4.6	4.8	6.4	5.6	4.3	3.0	2.6	2.5	3.0	3.9	4.9	4.1
2019	5.9	5.9	6.5	4.9	4.3	4.3	2.4	3.0	2.5	4.0	4.0	4.6
2020	4.8	5.0	6.0	5.6	4.7	3.5	2.8	2.9	2.9	3.0	4.2	4.9
2021	4.4	5.7	5.3	4.8	3.3	3.1	2.8	2.3	2.8	3.2	4.0	3.7
2022	4.9	5.3	6.3	5.7	3.9	3.0	2.7	2.5	2.6	3.8	4.5	4.6
2023	4.8	5.8	6.3	4.9	3.6	3.8	2.9	3.0	2.2	3.4	3.8	3.6
2024	5.5	4.5	5.4	5.6	3.1	3.0	3.0	2.9	2.9	2.9	4.4	4.9
2025	5.4	5.6	6.3	5.1	4.3	2.8	2.3	2.6	2.2	4.0	5.9	6.6
2026	6.6	4.9	7.4	6.7	4.8	4.4	3.0	2.9	3.2	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	32.60	32.71	60.39	63.50	80.43	84.98	84.14	89.89	84.08	74.10	55.34	44.02
2008	40.13	40.69	50.70	66.92	70.09	81.98	83.56	82.46	79.94	65.74	50.00	42.63
2009	33.51	42.96	59.73	67.52	75.56	81.92	80.38	83.35	77.64	61.90	57.61	40.12
2010	33.14	33.19	55.74	71.01	77.91	88.09	90.36	89.39	79.25	68.13	55.76	33.22
2011	33.83	50.73	60.65	76.72	78.60	82.90	88.76	84.83	83.92	73.39	58.83	47.53
2012	44.51	46.65	65.44	64.69	78.64	82.45	88.87	84.90	75.05	63.65	52.45	46.49
2013	41.46	40.75	45.77	66.76	74.60	80.01	82.33	80.72	75.52	65.37	50.26	43.17
2014	34.26	38.35	50.34	67.48	74.82	82.45	81.12	82.43	78.60	63.97	48.69	44.50
2015	36.98	32.72	50.23	62.32	79.08	80.85	82.10	81.34	79.86	66.41	59.93	54.94
2016	39.00	45.28	61.14	66.28	71.77	83.43	83.46	86.92	83.35	71.17	59.09	42.67
2017	44.90	53.35	53.20	71.72	72.90	81.78	83.63	80.63	76.85	69.37	54.53	40.73
2018	38.36	50.29	48.68	59.38	81.52	81.56	84.34	83.15	79.67	65.79	46.61	44.98
2019	35.67	45.42	50.39	68.35	75.43	79.32	85.50	83.42	84.42	70.59	49.46	47.70
2020	45.69	43.54	57.97	61.31	66.75	81.63	89.75	84.31	76.52	64.95	59.55	42.56
2021	38.25	38.03	60.85	64.82	72.83	82.68	84.25	86.83	78.54	70.88	53.28	53.44
2022	37.24	46.09	59.25	62.53	78.19	84.54	85.99	85.31	77.77	66.53	56.64	44.83
2023	46.38	55.63	56.00	69.37	75.27	80.24	87.35	84.37	80.89	69.50	57.46	50.68
2024	40.40	54.87	60.57	69.72	79.16	85.79	89.54	90.25	83.24	72.03	58.32	46.42
2025	34.91	45.23	62.82	68.91	72.69	86.73	89.73	86.04	80.59	66.47	52.52	44.57
2026	36.13	43.66	64.27	73.87	72.80	81.63	85.01	83.08	84.84	M	M	M
NCEI Climatology	39.50	43.34	53.40	65.81	74.11	81.09	84.59	84.60	78.70	67.00	54.30	44.11

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	20.60	12.52	37.46	42.14	52.32	60.32	61.44	66.90	55.52	49.19	34.94	28.17
2008	21.72	22.81	31.01	42.80	46.75	59.66	61.32	58.59	55.10	38.56	28.52	23.58
2009	16.73	22.43	33.58	41.62	52.44	60.87	60.32	62.59	56.15	39.55	33.69	24.41
2010	19.48	20.41	31.95	40.57	54.90	67.42	69.61	66.58	52.57	41.38	29.76	19.92
2011	17.38	17.68	28.84	30.34	43.31	49.27	59.32	60.21	51.20	40.42	36.31	29.68
2012	24.99	26.29	40.42	39.54	55.24	56.53	66.02	59.34	52.96	41.50	28.06	31.10
2013	24.46	23.11	28.72	39.67	51.58	60.26	64.32	61.18	53.49	44.94	29.71	27.88
2014	12.58	16.64	25.68	41.19	50.30	60.30	59.84	60.95	52.00	44.09	28.62	29.78
2015	18.52	9.62	27.92	37.58	52.34	61.48	63.43	58.67	56.02	42.93	37.15	35.77
2016	17.84	26.01	37.46	40.05	50.05	59.62	65.37	66.44	57.27	45.66	32.62	26.84
2017	29.82	30.76	32.82	47.04	52.36	57.68	63.83	59.41	54.34	44.60	32.68	22.88
2018	16.10	31.03	29.39	36.03	58.83	62.31	63.95	64.93	62.09	45.11	31.83	29.29
2019	27.83	34.71	31.67	42.48	55.20	60.11	66.13	61.60	57.64	44.31	27.27	28.08
2020	29.09	26.69	38.39	38.32	49.48	59.93	65.85	63.58	55.02	45.12	34.66	27.53
2021	26.28	21.87	32.94	39.25	47.14	60.88	63.20	65.29	56.18	50.75	29.64	32.67
2022	17.19	23.07	32.04	40.36	55.60	59.42	66.53	64.90	56.29	37.16	32.66	26.02
2023	31.35	28.95	30.30	40.02	48.05	54.61	64.08	60.93	54.51	43.79	28.99	30.92
2024	25.31	27.26	33.86	44.54	54.95	59.54	63.47	60.60	54.55	40.55	37.48	28.77
2025	12.56	24.35	32.10	42.70	50.97	62.39	67.83	59.34	55.92	43.42	34.33	25.80
2026	15.71	20.09	38.10	47.57	49.96	61.29	66.56	64.94	67.17	M	M	M
NCEI Climatology	21.50	22.62	30.30	39.90	49.70	57.89	61.50	60.10	52.20	40.70	31.81	26.00

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	26.60	22.61	48.93	52.82	66.37	72.65	72.79	78.39	69.80	61.64	45.14	36.09
2008	30.93	31.75	40.85	54.86	58.42	70.82	72.44	70.53	67.52	52.15	39.26	33.10
2009	25.12	32.70	46.66	54.57	64.00	71.39	70.35	72.97	66.90	50.72	45.65	32.26
2010	26.31	26.80	43.85	55.79	66.40	77.75	79.99	77.98	65.91	54.75	42.76	26.57
2011	25.61	34.21	44.75	53.53	60.96	66.09	74.04	72.52	67.56	56.90	47.57	38.60
2012	34.75	36.47	52.93	52.12	66.94	69.49	77.44	72.12	64.00	52.57	40.26	38.80
2013	32.96	31.93	37.25	53.22	63.09	70.13	73.33	70.95	64.50	55.16	39.99	35.53
2014	23.42	27.49	38.01	54.34	62.56	71.37	70.48	71.69	65.30	54.03	38.65	37.14
2015	27.75	21.17	39.07	49.95	65.71	71.16	72.76	70.01	67.94	54.67	48.54	45.36
2016	28.42	35.64	49.30	53.17	60.91	71.52	74.42	76.68	70.31	58.41	45.86	34.75
2017	37.36	42.06	43.01	59.38	62.63	69.73	73.73	70.02	65.60	56.99	43.60	31.80
2018	27.23	40.66	39.04	47.70	70.18	71.93	74.14	74.04	70.88	55.45	39.22	37.14
2019	31.75	40.06	41.03	55.41	65.31	69.72	75.82	72.51	71.03	57.45	38.37	37.89
2020	37.39	35.12	48.18	49.82	58.11	70.78	77.80	73.95	65.77	55.04	47.10	35.04
2021	32.26	29.95	46.89	52.04	59.98	71.78	73.73	76.06	67.36	60.82	41.46	43.05
2022	27.22	34.58	45.65	51.45	66.90	71.98	76.26	75.10	67.03	51.84	44.65	35.42
2023	38.87	42.29	43.15	54.69	61.66	67.42	75.71	72.65	67.70	56.64	43.23	40.80
2024	32.85	41.07	47.22	57.13	67.05	72.66	76.50	75.43	68.90	56.29	47.90	37.59
2025	23.73	34.79	47.46	55.81	61.83	74.56	78.78	72.69	68.25	54.95	43.43	35.18
2026	25.92	31.88	51.18	60.72	61.38	71.46	75.79	74.01	76.00	M	M	M
NCEI Climatology	30.50	32.98	41.85	52.86	61.90	69.49	73.05	72.35	65.45	53.85	43.06	35.06

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	95.6%	93.3%	70.0%	61.6%	61.5%	64.6%	70.9%	68.9%	66.7%	69.4%	68.2%	75.9%
2008	69.2%	74.0%	66.7%	59.4%	65.6%	69.1%	69.5%	67.3%	68.1%	64.1%	70.3%	76.3%
2009	76.8%	56.5%	56.2%	62.8%	70.4%	64.8%	64.4%	66.8%	64.6%	72.7%	70.5%	71.7%
2010	74.6%	76.4%	68.1%	55.8%	63.7%	57.2%	57.0%	62.7%	71.6%	66.7%	73.9%	75.9%
2011	75.4%	70.7%	66.7%	61.0%	65.9%	62.1%	71.0%	72.0%	79.1%	75.1%	71.9%	77.2%
2012	71.8%	70.6%	67.5%	60.4%	73.3%	67.0%	72.6%	71.6%	76.9%	76.1%	69.4%	83.6%
2013	74.8%	73.6%	67.6%	58.8%	68.9%	76.5%	80.0%	80.0%	80.8%	79.9%	69.2%	74.6%
2014	68.0%	68.5%	60.1%	60.5%	68.6%	74.8%	73.7%	76.8%	72.8%	75.6%	67.2%	77.5%
2015	72.0%	63.0%	64.0%	66.0%	67.4%	76.1%	78.2%	78.3%	81.9%	77.1%	73.5%	86.0%
2016	74.3%	74.8%	70.8%	64.2%	77.6%	73.6%	85.8%	82.6%	77.5%	76.3%	77.2%	77.7%
2017	84.6%	73.8%	68.6%	67.8%	75.2%	75.0%	82.9%	82.7%	82.3%	81.0%	77.0%	76.0%
2018	76.1%	82.0%	66.7%	67.8%	76.8%	83.5%	80.7%	85.4%	88.1%	83.7%	83.8%	87.2%
2019	79.3%	81.8%	66.5%	70.2%	81.5%	80.7%	84.4%	81.1%	76.0%	79.5%	78.3%	84.8%
2020	80.1%	79.8%	73.1%	69.7%	80.2%	76.5%	74.5%	78.1%	80.5%	81.0%	73.3%	81.2%
2021	83.4%	79.3%	61.0%	66.2%	72.6%	77.9%	80.4%	80.9%	82.0%	84.3%	73.1%	78.1%
2022	75.5%	72.6%	64.9%	66.5%	68.7%	69.1%	79.4%	76.9%	76.4%	72.9%	73.7%	78.1%
2023	82.7%	64.8%	63.4%	59.8%	66.5%	69.3%	72.9%	74.9%	74.6%	73.5%	68.0%	75.8%
2024	75.8%	64.2%	63.4%	63.8%	72.1%	68.5%	67.3%	64.3%	67.7%	68.7%	75.2%	73.3%
2025	70.0%	68.9%	57.2%	65.5%	73.7%	73.8%	75.8%	70.0%	75.3%	75.4%	74.6%	74.8%
2026	68.4%	74.0%	66.6%	63.9%	73.4%	79.0%	84.9%	88.3%	87.0%	M	M	M