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 (USW00025503) 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	M	M	M	M
2006	M	M	M	M	M	M	M	M	M	M	M	M
2007	M	0.16	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	0.00	0.00	0.00	0.00	0.00	0.01	1.47	0.42
2011	1.13	3.21	1.67	0.31	0.00	0.20	0.00	0.05	0.00	0.65	0.54	1.15
2012	0.00	0.93	0.58	1.22	1.09	0.13	0.02	0.26	0.18	1.20	0.19	0.61
2013	0.24	0.44	0.67	0.66	0.00	0.00	0.24	0.02	0.00	0.05	0.33	0.35
2014	0.61	0.05	0.13	0.33	M	0.01	M	M	M	1.04	1.25	0.88
2015	0.26	0.10	1.28	0.14	0.07	0.26	0.05	0.31	M	M	0.54	1.96
2016	1.84	1.04	1.19	1.19	2.96	1.96	3.09	4.72	8.11	2.16	0.72	0.50
2017	0.07	0.03	0.06	0.70	2.58	2.11	1.92	5.03	3.39	3.56	0.43	1.54
2018	0.67	0.91	0.48	1.34	2.44	3.06	2.29	4.83	1.77	4.94	1.96	1.48
2019	0.94	2.60	0.84	0.91	3.69	1.26	1.16	0.41	4.96	3.98	3.77	1.05
2020	0.00	0.44	0.03	1.09	0.93	2.38	1.42	2.35	3.16	2.55	2.39	0.78
2021	0.65	0.66	0.29	0.53	1.36	1.95	2.55	1.67	2.26	2.75	0.01	0.25
2022	0.78	1.87	1.12	0.91	0.35	1.37	3.00	2.96	5.35	3.74	1.55	M
2023	0.95	0.99	0.32	0.18	2.83	2.62	3.71	4.02	3.02	2.02	1.90	0.19
2024	0.35	0.14	0.04	0.90	2.24	1.35	3.13	5.11	2.98	1.83	1.37	1.09
2025	4.10	0.35	1.18	2.27	2.35	2.17	3.77	5.61	3.39	3.65	1.35	0.61
2026	0.21	0.00	0.35	2.37	3.17	0.68	4.19	5.27	M	M	M	M
NCEI Climatology	0.93	0.94	0.76	1.04	1.44	1.83	2.46	3.26	3.40	2.31	1.72	1.38

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	M	M	9.9	7.9	5.5	10.5
2006	1.7	9.4	7.3	8.3	7.5	7.6	8.3	6.2	6.2	8.2	5.7	6.6
2007	8.0	6.2	3.6	6.6	0.1	2.3	4.5	5.9	9.1	6.7	9.2	8.1
2008	5.7	8.7	7.6	7.7	8.0	6.5	6.5	4.2	6.6	M	M	M
2009	12.4	9.8	10.1	9.4	6.8	7.3	7.6	7.3	7.6	8.3	5.6	21.0
2010	M	M	M	M	10.0	8.2	8.3	8.4	9.4	7.3	8.1	6.5
2011	13.5	9.5	9.8	11.3	11.1	9.7	8.7	7.6	7.1	7.6	10.1	8.6
2012	9.0	15.0	5.9	8.8	7.7	6.6	7.0	5.1	4.1	10.8	8.2	10.2
2013	13.4	12.9	10.1	7.6	4.6	4.4	3.0	8.1	8.6	11.1	7.5	12.5
2014	14.1	13.9	4.9	10.0	7.2	7.7	6.4	8.2	9.0	7.6	10.5	11.2
2015	13.2	13.6	11.8	7.8	9.6	7.4	6.5	7.2	8.7	12.7	11.2	10.7
2016	15.6	14.6	12.0	12.2	9.1	8.2	8.6	8.0	7.7	12.3	10.7	9.6
2017	7.5	8.9	7.0	9.7	10.2	7.7	7.3	8.7	9.2	10.2	8.2	12.3
2018	11.3	12.8	8.8	11.1	10.2	8.7	10.1	10.1	8.7	10.2	11.0	9.7
2019	13.1	11.0	9.8	9.0	10.5	7.4	7.5	7.8	10.2	10.3	12.2	11.0
2020	8.7	12.6	10.3	8.8	8.1	8.7	6.6	7.3	9.4	8.4	10.0	12.9
2021	11.0	12.7	9.2	10.5	4.1	7.1	7.2	7.3	7.7	9.6	7.0	9.4
2022	14.0	11.6	12.7	9.7	8.3	7.5	8.6	8.9	8.5	8.7	10.8	M
2023	11.5	9.1	8.5	8.2	10.6	9.4	7.3	8.0	7.3	8.6	8.7	8.7
2024	13.3	15.1	11.1	9.7	8.4	8.7	7.2	9.7	7.6	8.4	9.7	12.4
2025	12.5	9.4	6.4	8.9	8.6	8.6	7.6	7.3	7.9	9.0	9.0	9.2
2026	8.9	8.1	6.6	8.2	8.3	8.7	6.9	8.2	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
2005	M	M	M	M	M	M	M	M	47.30	43.21	20.63	34.42
2006	16.39	24.42	25.25	32.89	51.26	59.01	62.80	59.83	55.42	45.03	63.43	20.01
2007	19.87	26.46	17.52	43.13	51.24	58.55	63.59	63.36	54.25	41.27	36.03	24.69
2008	16.62	20.59	26.56	33.29	47.90	56.05	60.25	63.20	54.46	M	M	M
2009	21.96	22.57	24.05	34.22	54.23	57.37	62.53	60.32	54.61	44.93	24.69	23.60
2010	24.20	30.00	11.12	28.60	53.16	58.75	56.50	57.66	55.53	41.88	30.56	17.57
2011	24.09	25.12	27.88	35.22	50.50	54.11	57.33	58.94	53.36	42.16	21.81	20.85
2012	3.23	29.15	19.34	39.12	47.49	59.01	56.25	58.02	49.88	40.33	24.72	20.52
2013	25.19	24.79	26.92	31.12	48.00	63.35	63.95	60.24	52.43	45.92	31.76	26.37
2014	35.11	31.88	32.11	41.75	58.58	59.33	64.89	63.34	56.91	39.24	35.25	32.30
2015	27.71	30.82	41.99	45.42	51.31	62.55	62.63	63.92	52.46	49.57	29.43	27.88
2016	32.62	36.06	36.61	49.79	56.64	62.06	65.33	63.86	57.76	47.39	31.00	23.55
2017	21.50	24.41	25.63	44.06	52.36	60.43	63.99	58.89	55.15	43.71	34.90	33.96
2018	26.17	31.50	33.36	40.43	48.80	59.16	59.90	58.61	60.08	48.19	35.99	23.42
2019	27.09	33.36	38.02	42.77	50.58	64.61	67.59	65.71	55.09	45.95	36.92	24.09
2020	9.63	22.40	28.62	41.10	54.40	58.01	64.05	63.06	55.13	43.94	33.67	25.28
2021	27.12	26.04	28.83	38.57	49.53	57.16	61.70	58.84	52.32	40.16	15.28	18.52
2022	21.07	32.92	35.04	M	67.29	64.60	60.06	58.40	52.60	42.50	33.86	M
2023	26.40	23.62	29.54	32.46	45.92	55.19	60.65	59.97	52.20	43.13	33.87	21.38
2024	24.23	21.17	30.00	35.81	45.55	57.71	59.89	56.85	54.35	41.39	30.98	33.30
2025	30.54	32.44	34.17	40.16	49.16	57.25	62.48	61.05	53.45	44.47	32.37	22.16
2026	18.24	23.88	20.44	36.65	46.55	62.17	59.50	58.89	M	M	M	M
NCEI Climatology	23.50	29.54	31.80	44.50	55.19	62.10	64.60	63.30	56.31	43.81	31.90	25.70

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	M	M	M	M	M	M	M	M	38.10	32.07	5.70	27.00
2006	5.35	12.53	8.41	20.74	35.57	42.71	48.05	46.54	42.49	35.43	12.29	7.97
2007	6.66	11.83	-1.45	31.65	37.20	43.95	49.22	50.32	45.15	30.46	27.25	13.83
2008	2.67	3.07	15.15	21.34	34.54	41.93	47.04	47.16	44.75	M	M	M
2009	13.84	9.07	11.90	23.30	35.58	41.78	48.46	46.50	41.53	34.03	12.21	21.20
2010	23.60	28.00	9.32	28.40	36.32	43.30	45.85	47.20	41.13	30.36	18.42	2.18
2011	13.34	10.21	13.85	22.69	36.62	42.46	45.80	46.35	41.58	31.78	8.95	10.35
2012	-12.20	18.38	4.25	27.09	33.07	41.35	44.69	46.24	38.83	28.13	11.42	5.82
2013	13.63	12.64	13.63	17.58	31.92	45.80	48.88	49.55	40.34	36.02	19.80	17.63
2014	27.09	24.44	11.93	29.39	37.60	43.03	47.88	51.16	41.83	26.62	26.93	24.78
2015	17.36	19.81	30.21	29.73	39.04	46.18	48.54	50.04	44.03	40.66	19.91	15.75
2016	24.56	28.90	25.46	34.63	40.98	46.85	51.46	51.53	42.78	34.55	17.80	12.59
2017	7.53	6.40	3.46	30.91	36.17	44.41	50.49	48.58	42.12	33.38	21.49	25.26
2018	14.08	18.81	19.99	27.91	35.85	43.89	49.16	48.03	43.67	37.94	25.18	9.56
2019	17.99	25.93	29.25	28.05	38.94	48.78	51.82	51.46	44.87	33.99	29.38	12.09
2020	-3.81	8.83	17.67	30.32	38.66	47.63	49.42	48.01	41.71	33.43	22.02	15.98
2021	16.07	14.34	10.23	26.23	34.04	45.82	49.48	46.67	39.32	29.89	-0.08	6.04
2022	7.67	26.08	29.36	M	44.03	46.27	48.59	48.81	41.80	31.32	21.55	M
2023	14.27	7.86	15.35	18.59	34.96	44.72	49.16	48.90	40.55	31.11	22.49	10.30
2024	13.15	10.94	19.37	24.50	33.35	45.70	47.28	46.05	41.70	28.59	18.76	24.69
2025	21.17	21.81	19.84	28.07	36.61	43.29	49.70	49.80	40.52	34.39	20.79	9.08
2026	2.60	5.84	-1.14	24.95	31.52	42.95	45.39	48.93	M	M	M	M
NCEI Climatology	9.80	14.70	15.21	27.60	36.10	43.50	48.90	47.99	41.01	29.00	18.20	11.40

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	M	M	M	M	42.70	37.64	13.16	30.71
2006	10.87	18.48	16.83	26.81	43.42	50.86	55.43	53.19	48.96	40.23	37.86	13.99
2007	13.27	19.15	8.04	37.39	44.22	51.25	56.40	56.84	49.70	35.87	31.64	19.26
2008	9.64	11.83	20.85	27.31	41.22	48.99	53.64	55.18	49.61	M	M	M
2009	17.90	15.82	17.97	28.76	44.90	49.58	55.49	53.41	48.07	39.48	18.45	22.40
2010	23.90	29.00	10.22	28.50	44.74	51.02	51.18	52.43	48.33	36.12	24.49	9.88
2011	18.71	17.67	20.86	28.96	43.56	48.28	51.56	52.65	47.47	36.97	15.38	15.60
2012	-4.48	23.76	11.80	33.10	40.28	50.18	50.47	52.13	44.35	34.23	18.07	13.17
2013	19.41	18.71	20.27	24.35	39.96	54.57	56.42	54.90	46.38	40.97	25.78	22.00
2014	31.10	28.16	22.02	35.57	48.09	51.18	56.38	57.25	49.37	32.93	31.09	28.54
2015	22.53	25.32	36.10	37.57	45.17	54.36	55.59	56.98	48.25	45.12	24.67	21.81
2016	28.59	32.48	31.03	42.21	48.81	54.45	58.39	57.69	50.27	40.97	24.40	18.07
2017	14.52	15.41	14.54	37.48	44.26	52.42	57.24	53.73	48.64	38.55	28.20	29.61
2018	20.12	25.16	26.67	34.17	42.32	51.53	54.53	53.32	51.87	43.06	30.58	16.49
2019	22.54	29.65	33.64	35.41	44.76	56.70	59.70	58.58	49.98	39.97	33.15	18.09
2020	2.91	15.62	23.15	35.71	46.53	52.82	56.74	55.54	48.42	38.69	27.85	20.63
2021	21.59	20.19	19.53	32.40	41.78	51.49	55.59	52.75	45.82	35.03	7.60	12.28
2022	14.37	29.50	32.20	M	55.66	55.44	54.33	53.60	47.20	36.91	27.70	M
2023	20.33	15.74	22.44	25.53	40.44	49.95	54.91	54.44	46.37	37.12	28.18	15.84
2024	18.69	16.06	24.68	30.16	39.45	51.70	53.58	51.45	48.02	34.99	24.87	29.00
2025	25.85	27.13	27.00	34.11	42.89	50.27	56.09	55.43	46.98	39.43	26.58	15.62
2026	10.42	14.86	9.65	30.80	39.04	52.56	52.44	53.91	M	M	M	M
NCEI Climatology	16.65	22.12	23.50	36.05	45.65	52.80	56.75	55.65	48.66	36.40	25.05	18.55

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	M	M	M	M	77.1%	78.1%	69.6%	79.1%
2006	76.8%	76.5%	72.5%	74.4%	66.6%	73.4%	75.5%	82.3%	82.4%	83.5%	88.2%	80.7%
2007	82.2%	77.8%	59.3%	76.6%	75.9%	75.1%	81.5%	82.3%	87.4%	81.4%	86.1%	78.8%
2008	79.8%	70.2%	79.7%	73.8%	77.0%	77.9%	79.6%	79.6%	89.7%	M	M	M
2009	82.7%	83.2%	80.4%	81.1%	66.6%	77.8%	83.2%	81.0%	81.3%	83.8%	83.1%	85.2%
2010	M	M	M	M	72.0%	78.0%	90.3%	91.5%	79.6%	85.6%	82.6%	78.6%
2011	84.0%	80.3%	69.5%	78.8%	74.2%	82.8%	86.6%	85.8%	84.6%	85.4%	77.5%	89.0%
2012	72.5%	87.4%	76.8%	76.0%	76.3%	75.7%	88.0%	84.1%	84.0%	71.7%	73.4%	81.3%
2013	84.8%	87.0%	78.4%	65.9%	68.4%	73.4%	85.9%	89.8%	84.5%	94.4%	92.7%	91.2%
2014	92.2%	79.8%	77.3%	79.2%	68.3%	81.0%	80.7%	90.3%	80.6%	79.6%	91.0%	93.4%
2015	88.3%	81.9%	80.3%	76.4%	88.4%	82.1%	85.9%	82.3%	90.7%	89.4%	83.0%	89.8%
2016	88.2%	88.6%	76.4%	75.7%	78.7%	78.0%	79.2%	87.3%	83.0%	75.1%	84.0%	85.7%
2017	86.6%	81.5%	58.5%	78.5%	76.2%	78.7%	82.6%	85.9%	80.7%	87.2%	83.9%	91.3%
2018	80.5%	83.7%	83.5%	80.3%	80.5%	78.7%	86.2%	87.4%	81.3%	88.7%	89.8%	87.8%
2019	86.3%	88.2%	86.1%	71.3%	81.7%	77.4%	80.4%	78.3%	85.6%	83.7%	89.4%	82.7%
2020	75.2%	82.6%	74.9%	83.8%	70.6%	75.0%	81.3%	81.2%	76.6%	86.1%	85.9%	87.2%
2021	87.5%	84.8%	81.5%	76.4%	79.0%	83.2%	84.7%	85.1%	78.2%	83.0%	76.6%	82.9%
2022	76.7%	92.6%	82.4%	M	58.6%	75.8%	88.3%	90.8%	90.8%	86.2%	88.9%	M
2023	92.4%	87.8%	80.3%	72.4%	85.8%	85.4%	88.7%	89.2%	85.3%	82.2%	90.8%	89.1%
2024	77.8%	86.0%	87.7%	86.1%	82.3%	80.9%	85.7%	88.5%	84.7%	83.3%	82.2%	91.1%
2025	89.1%	88.4%	77.6%	84.8%	82.1%	80.9%	85.6%	87.2%	80.2%	84.3%	87.9%	71.1%
2026	81.3%	74.6%	62.4%	88.7%	84.6%	75.0%	85.2%	94.6%	M	M	M	M