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 (USC00342818) 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
2005	M	M	M	M	M	M	M	M	1.54	0.57	0.03	0.05
2006	0.07	0.15	0.85	0.93	1.23	1.41	1.14	1.66	1.17	0.83	0.67	1.45
2007	0.47	0.14	3.51	2.11	5.31	8.06	3.18	2.04	2.13	1.84	0.06	0.16
2008	0.13	0.98	2.04	2.44	3.08	1.93	0.77	5.06	1.00	0.94	0.49	0.34
2009	0.09	0.74	1.45	1.67	1.39	0.90	1.66	1.94	2.65	2.04	0.11	0.22
2010	0.23	0.36	0.36	1.50	1.30	1.38	2.80	0.91	1.48	1.65	1.24	0.08
2011	0.00	0.48	0.02	0.09	2.76	0.76	0.21	1.73	0.87	1.32	3.41	0.74
2012	0.92	0.56	2.01	1.54	2.31	1.36	0.64	0.00	M	M	M	M
2013	M	M	M	M	M	M	1.11	1.25	0.87	1.36	0.19	0.23
2014	M	0.06	0.47	0.37	1.49	2.81	M	0.08	0.93	0.71	0.84	0.39
2015	0.67	0.06	M	1.47	1.04	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	4.56	2.22	3.05	0.90	8.65	2.89	4.23	0.02	0.15
2018	0.09	1.17	0.29	1.72	2.45	2.65	2.28	3.37	8.07	6.08	0.05	1.81
2019	0.68	0.43	1.83	4.41	13.77	4.89	0.03	2.63	0.24	0.19	0.10	0.90
2020	1.08	0.24	4.92	0.64	2.80	2.33	6.85	2.50	2.17	0.25	0.49	0.97
2021	0.50	0.02	0.59	0.73	3.50	3.97	1.87	2.04	0.81	2.32	0.11	0.02
2022	0.02	0.04	0.04	0.71	2.08	M	M	0.02	M	M	M	M
2023	M	M	M	0.07	0.85	0.12	0.01	0.01	M	0.02	M	M
2024	0.01	0.02	0.05	0.26	3.40	0.02	M	M	0.01	M	M	0.01
2025	0.02	0.01	0.03	0.02	0.01	0.02	0.01	0.04	0.03	0.03	0.08	0.11
2026	0.09	0.12	M	0.48	0.46	0.01	M	M	M	M	M	M
NCEI Climatology	0.93	1.22	2.43	3.06	5.16	5.61	3.23	3.30	3.03	3.00	2.13	1.49

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	5.5	11.4	M	M	9.7	9.7	12.4	11.5
2006	12.4	12.0	13.1	13.1	11.6	10.9	10.7	9.3	10.0	11.6	12.3	11.9
2007	11.0	13.1	11.8	11.3	9.5	9.3	6.9	7.2	1.5	0.0	8.4	10.5
2008	13.8	12.6	14.2	13.9	12.1	13.2	9.8	7.2	4.1	11.3	11.8	13.9
2009	12.1	13.6	13.2	13.4	9.1	10.1	9.2	9.8	8.5	11.7	10.1	11.8
2010	9.6	8.6	12.1	10.7	5.6	3.5	0.5	0.2	0.1	9.5	13.4	10.9
2011	11.1	13.5	13.0	14.2	14.7	15.8	9.6	9.9	10.0	11.9	14.3	10.9
2012	12.7	11.8	12.7	11.0	12.2	11.5	9.9	10.1	M	M	M	M
2013	M	M	M	M	M	M	9.2	8.6	9.3	12.0	12.9	10.4
2014	13.7	12.4	14.6	13.3	11.6	12.9	M	11.2	10.4	10.4	13.0	10.3
2015	11.0	12.0	9.5	11.9	9.7	9.8	9.4	3.6	3.9	1.3	12.6	11.4
2016	10.7	12.8	13.2	11.3	11.1	9.6	10.9	9.3	M	M	M	M
2017	M	M	M	16.0	12.1	13.1	10.0	8.8	10.9	13.1	12.8	12.9
2018	14.7	14.4	14.7	16.3	13.2	14.3	7.7	11.0	10.5	10.8	12.0	13.2
2019	13.6	13.8	13.7	13.5	12.2	10.9	11.3	11.4	12.5	15.6	13.0	12.4
2020	14.0	14.3	12.7	13.7	11.9	14.0	10.7	10.1	10.4	14.1	13.3	12.4
2021	11.9	13.6	15.4	14.5	12.4	11.0	9.1	11.3	11.5	10.7	9.1	7.8
2022	11.2	14.8	14.7	16.4	14.7	12.3	11.3	9.7	10.0	9.7	12.5	16.1
2023	12.4	13.2	14.5	13.6	8.4	8.5	10.6	10.3	11.1	13.1	11.1	11.4
2024	11.6	13.5	13.0	14.6	11.4	12.7	10.2	M	10.3	11.5	M	11.8
2025	11.7	12.9	15.3	13.8	4.5	11.0	11.0	9.9	8.6	10.4	11.0	12.3
2026	12.5	11.8	15.4	14.3	12.6	14.5	10.9	11.6	11.5	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
2005	M	M	M	M	78.80	86.00	M	94.04	91.10	75.95	68.18	51.68
2006	62.54	54.69	67.19	80.66	84.55	93.74	99.41	97.67	83.54	74.21	63.62	52.73
2007	46.46	51.86	68.99	65.66	78.92	86.06	91.46	95.43	86.42	77.17	65.24	48.74
2008	52.38	53.97	64.23	71.18	82.34	92.48	96.97	92.33	83.72	75.03	63.80	51.97
2009	51.05	59.96	65.27	71.84	78.22	94.16	96.34	93.37	82.10	65.15	65.24	45.70
2010	46.17	44.60	60.39	71.48	81.01	95.48	95.35	97.27	86.54	76.54	60.44	49.71
2011	47.10	52.44	62.25	74.94	83.11	97.58	103.19	101.72	84.50	77.66	58.46	48.20
2012	53.60	52.17	69.51	73.22	83.27	91.04	99.01	104.00	M	M	M	M
2013	M	M	M	M	M	M	87.08	91.06	89.60	71.02	56.30	45.87
2014	48.74	46.01	58.13	67.93	79.73	86.69	M	96.50	85.32	75.84	54.56	46.92
2015	47.45	48.27	61.50	68.87	73.34	89.72	92.42	86.50	88.16	74.15	63.40	57.67
2016	48.75	57.55	65.91	72.44	77.93	90.68	92.74	92.77	M	M	M	M
2017	M	M	M	68.33	80.25	90.05	96.85	87.06	83.57	72.95	63.31	49.40
2018	50.04	51.60	65.41	67.78	86.93	93.41	94.27	91.44	81.27	68.76	56.92	49.50
2019	45.96	45.36	56.40	70.55	75.88	86.22	93.96	95.07	90.95	69.34	58.32	53.59
2020	52.40	51.63	64.19	68.18	78.58	89.71	87.89	89.66	78.56	70.24	63.72	51.75
2021	47.94	39.94	65.39	68.47	74.08	87.73	90.33	91.73	91.11	75.85	63.25	63.72
2022	50.81	50.65	63.71	74.57	81.18	90.64	100.62	95.73	89.83	78.20	56.46	59.80
2023	54.28	54.81	60.61	70.86	78.52	82.16	91.83	95.76	89.37	74.08	63.17	53.56
2024	43.24	60.17	65.26	74.72	81.52	93.90	93.58	M	88.40	88.40	M	56.12
2025	45.70	49.94	69.10	71.72	79.19	87.80	93.08	90.24	85.52	78.16	66.38	56.74
2026	49.36	65.94	75.84	75.74	82.11	90.38	96.62	102.49	97.93	M	M	M
NCEI Climatology	48.50	53.13	62.00	71.01	79.10	87.70	93.50	92.31	83.99	72.79	60.00	49.60

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	61.52	66.80	M	71.60	65.54	51.92	38.90	28.81
2006	35.48	30.46	43.38	53.90	61.38	67.28	73.11	73.86	58.34	50.75	40.22	32.58
2007	29.74	31.36	48.32	45.80	61.67	67.76	70.03	74.21	65.18	52.79	39.80	30.20
2008	29.27	31.07	39.66	46.16	58.94	69.26	70.96	70.32	60.62	49.42	39.32	29.74
2009	27.47	36.89	41.99	47.60	56.62	69.26	69.92	69.63	62.42	47.62	43.82	26.95
2010	28.52	31.87	39.72	51.02	57.37	72.32	73.46	71.20	63.86	47.97	36.68	28.81
2011	22.13	27.50	38.56	47.30	57.71	69.86	74.68	73.58	55.76	52.08	38.00	31.01
2012	29.79	32.68	47.39	51.68	60.16	66.02	71.83	77.00	M	M	M	M
2013	M	M	M	M	M	M	69.80	69.63	63.75	48.84	35.66	25.53
2014	24.92	24.99	32.87	43.66	54.20	66.46	M	69.90	62.97	51.80	33.44	33.39
2015	27.30	26.00	38.91	50.25	55.52	67.10	71.60	66.20	64.52	50.75	41.07	35.91
2016	29.51	34.35	40.88	48.08	56.15	67.64	71.37	69.15	M	M	M	M
2017	M	M	M	47.78	54.09	67.01	71.92	67.42	61.75	50.01	39.99	28.63
2018	23.44	27.36	39.46	39.43	62.97	69.38	71.23	69.67	65.07	50.03	31.74	29.63
2019	33.33	33.91	36.50	48.93	56.99	65.72	69.18	71.73	69.45	44.95	33.46	31.50
2020	31.73	29.29	43.45	43.70	56.30	65.93	72.63	66.81	59.84	46.43	41.39	28.37
2021	29.11	19.98	40.53	44.30	56.51	66.09	69.09	69.93	63.78	52.11	38.21	35.37
2022	22.58	24.97	35.56	48.06	59.78	68.39	74.20	70.66	62.39	50.68	37.13	35.48
2023	30.02	30.88	36.29	43.90	58.65	66.10	70.77	74.94	66.59	51.43	38.62	33.02
2024	24.34	36.24	41.35	50.04	58.62	70.18	71.12	M	60.95	57.20	M	36.77
2025	23.41	24.86	41.35	49.58	59.26	67.76	71.77	68.75	62.72	54.35	40.88	30.43
2026	22.48	35.99	44.08	53.18	56.97	69.02	72.44	73.86	72.00	M	M	M
NCEI Climatology	25.20	27.71	35.50	45.70	56.60	65.69	70.11	68.20	59.50	48.00	35.90	27.70

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	70.16	76.40	M	82.82	78.32	63.94	53.54	40.25
2006	49.01	42.58	55.28	67.28	72.96	80.51	86.26	85.77	70.94	62.48	51.92	42.65
2007	38.10	41.61	58.65	55.73	70.29	76.91	80.75	84.82	75.80	64.98	52.52	39.47
2008	40.83	42.52	51.95	58.67	70.64	80.87	83.97	81.33	72.17	62.22	51.56	40.85
2009	39.26	48.42	53.63	59.72	67.42	81.71	83.13	81.50	72.26	56.39	54.53	36.33
2010	37.34	38.24	50.06	61.25	69.19	83.90	84.40	84.23	75.20	62.25	48.56	39.26
2011	34.61	39.97	50.41	61.12	70.41	83.72	88.93	87.65	70.13	64.87	48.23	39.61
2012	41.70	42.43	58.45	62.45	71.72	78.53	85.42	90.50	M	M	M	M
2013	M	M	M	M	M	M	78.44	80.34	76.67	59.93	45.98	35.70
2014	36.83	35.50	45.50	55.80	66.97	76.57	M	83.20	74.14	63.82	44.00	40.16
2015	37.37	37.13	50.20	59.56	64.43	78.41	82.01	76.35	76.34	62.45	52.23	46.79
2016	39.13	45.95	53.40	60.26	67.04	79.16	82.05	80.96	M	M	M	M
2017	M	M	M	58.05	67.17	78.53	84.39	77.24	72.66	61.48	51.65	39.02
2018	36.74	39.48	52.44	53.60	74.95	81.40	82.75	80.55	73.17	59.40	44.33	39.56
2019	39.64	39.64	46.45	59.74	66.43	75.97	81.57	83.40	80.20	57.15	45.89	42.55
2020	42.06	40.46	53.82	55.94	67.44	77.82	80.26	78.24	69.20	58.33	52.56	40.06
2021	38.52	29.96	52.96	56.38	65.29	76.91	79.71	80.83	77.44	63.98	50.73	49.55
2022	36.70	37.81	49.63	61.31	70.48	79.52	87.41	83.20	76.11	64.44	46.79	47.64
2023	42.15	42.85	48.45	57.38	68.59	74.13	81.30	85.35	77.98	62.75	50.89	43.29
2024	33.79	48.20	53.31	62.38	70.07	82.04	82.35	M	74.68	72.80	M	46.45
2025	34.55	37.40	55.23	60.65	69.22	77.78	82.43	79.50	74.12	66.26	53.63	43.58
2026	35.92	50.96	59.96	64.46	69.54	79.70	84.53	88.18	84.97	M	M	M
NCEI Climatology	36.85	40.42	48.75	58.36	67.85	76.70	81.80	80.25	71.75	60.39	47.95	38.65

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
2005	M	M	M	M	81.6%	76.4%	M	M	65.8%	69.0%	58.2%	64.1%
2006	53.3%	59.5%	58.3%	56.3%	64.4%	54.3%	50.3%	58.1%	62.5%	65.9%	72.1%	75.4%
2007	80.2%	73.0%	73.5%	77.0%	80.8%	78.5%	75.0%	67.4%	72.0%	67.7%	66.1%	80.4%
2008	65.4%	69.5%	67.0%	67.4%	67.3%	64.0%	58.1%	69.1%	70.9%	66.3%	64.0%	64.5%
2009	57.6%	60.5%	66.6%	66.8%	74.2%	61.3%	56.2%	63.0%	72.3%	78.1%	74.8%	75.2%
2010	77.1%	81.1%	72.8%	72.4%	72.7%	63.7%	70.0%	53.9%	70.2%	59.3%	66.9%	70.0%
2011	66.0%	69.8%	67.3%	54.8%	61.6%	46.7%	40.7%	46.9%	50.2%	56.6%	69.3%	78.8%
2012	64.3%	72.3%	73.9%	76.8%	65.1%	63.9%	46.8%	31.1%	M	M	M	M
2013	M	M	M	M	M	M	74.6%	63.5%	55.7%	69.0%	67.4%	72.8%
2014	52.9%	67.7%	62.1%	58.7%	63.2%	69.1%	M	52.5%	64.1%	63.2%	64.5%	80.8%
2015	66.7%	69.1%	72.5%	75.4%	82.2%	66.3%	66.3%	64.3%	63.0%	63.3%	71.7%	72.3%
2016	74.7%	59.2%	62.8%	66.6%	66.8%	65.3%	65.6%	61.7%	M	M	M	M
2017	M	M	M	76.1%	68.2%	65.0%	62.6%	76.5%	69.8%	68.2%	70.4%	65.8%
2018	55.4%	69.3%	62.3%	59.7%	69.1%	63.2%	63.5%	67.7%	82.9%	81.0%	69.2%	71.4%
2019	76.0%	78.0%	67.9%	72.3%	82.7%	74.7%	63.1%	66.9%	71.0%	64.9%	71.7%	70.1%
2020	76.9%	71.7%	76.9%	72.6%	72.3%	66.4%	77.3%	70.4%	80.4%	69.3%	70.0%	72.7%
2021	76.7%	75.5%	66.2%	67.6%	80.4%	76.1%	74.8%	70.9%	55.5%	68.0%	63.7%	57.3%
2022	56.6%	61.7%	56.8%	57.0%	70.3%	65.3%	50.1%	58.3%	56.8%	51.8%	77.7%	60.0%
2023	64.6%	64.9%	65.9%	60.6%	78.7%	78.4%	68.6%	52.5%	62.0%	65.2%	70.0%	67.4%
2024	72.5%	68.7%	71.6%	65.6%	73.4%	64.0%	63.2%	M	62.2%	46.4%	M	68.3%
2025	66.3%	65.3%	53.5%	69.7%	70.8%	72.1%	67.2%	66.0%	68.7%	65.2%	65.4%	65.0%
2026	63.2%	59.7%	57.9%	73.6%	68.9%	73.0%	61.4%	44.9%	51.7%	M	M	M