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	0.06	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	0.07	0.00	0.14	0.12	0.33	0.77	0.68	0.24	0.87	0.04	0.13
2011	0.08	0.03	0.02	0.03	0.00	0.19	0.53	1.63	4.14	1.37	1.45	2.01
2012	18.34	3.81	11.48	6.55	1.89	1.40	2.90	2.55	2.75	0.41	0.58	0.54
2013	0.42	0.08	0.18	0.25	0.16	0.11	0.88	2.10	3.14	3.02	1.27	0.16
2014	1.64	0.19	4.52	0.44	0.72	0.83	0.35	1.33	0.48	0.53	2.36	1.32
2015	0.93	0.28	0.11	0.43	0.30	0.21	0.89	1.02	1.48	1.49	M	1.33
2016	1.02	0.47	0.58	0.39	1.04	0.96	1.82	2.57	3.91	1.93	0.70	0.43
2017	0.13	0.24	0.00	0.18	1.26	1.06	1.33	2.74	3.02	2.01	1.09	1.27
2018	1.21	0.63	0.66	0.71	1.22	1.31	1.76	2.06	0.73	1.84	0.88	0.87
2019	0.28	1.05	0.84	0.55	2.30	0.76	1.01	0.62	0.14	2.31	3.20	0.76
2020	0.07	0.06	0.60	0.22	M	0.04	1.25	1.42	2.03	3.13	1.32	M
2021	0.10	M	M	M	0.27	0.67	0.06	1.08	1.21	2.02	0.11	0.20
2022	0.02	1.23	0.19	0.20	0.13	0.58	1.95	2.85	3.47	0.22	0.36	0.66
2023	0.45	0.02	0.06	0.15	0.99	0.69	M	0.29	0.00	0.00	0.57	0.28
2024	0.22	0.57	0.19	M	0.06	0.13	M	M	M	0.57	0.33	0.06
2025	0.17	0.14	0.02	0.00	0.07	0.00	0.00	0.00	M	M	0.01	0.00
2026	0.09	0.36	0.06	0.68	0.21	0.11	0.16	0.03	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	M	M	M	M
2006	M	M	M	M	M	M	M	M	M	10.3	9.6	8.2
2007	10.5	9.8	7.8	12.5	10.3	11.3	9.2	10.8	9.5	0.0	0.0	11.5
2008	9.8	11.8	13.4	12.5	12.2	12.2	12.0	8.9	8.5	8.8	7.4	12.8
2009	10.2	11.4	12.0	13.0	10.6	10.5	10.2	13.1	9.4	11.4	11.7	14.8
2010	8.9	9.2	10.6	11.0	12.5	11.4	9.7	11.0	10.9	9.5	10.5	8.6
2011	11.7	11.9	8.0	12.4	12.8	12.6	11.6	12.0	10.3	11.6	15.6	13.3
2012	10.9	17.7	12.2	12.6	12.2	13.6	10.0	11.8	13.0	11.3	8.5	10.8
2013	12.2	5.6	0.8	12.2	11.4	12.4	9.8	11.3	14.4	14.1	11.5	11.5
2014	14.9	3.4	6.0	11.5	11.1	12.3	9.4	9.3	10.5	7.8	10.2	10.6
2015	7.4	9.7	11.5	9.5	3.5	1.6	11.9	13.9	14.4	11.6	M	15.4
2016	12.8	13.8	10.5	13.7	11.4	10.5	12.8	9.8	11.8	13.2	9.9	10.1
2017	9.0	10.2	9.3	11.0	12.3	10.8	10.1	13.7	12.5	15.0	12.5	13.3
2018	13.5	14.2	10.6	11.8	13.6	11.4	12.2	14.1	12.5	11.6	11.6	12.3
2019	10.9	11.9	11.5	12.1	12.2	11.1	9.7	8.6	22.7	13.5	14.5	11.5
2020	9.7	12.9	11.4	11.0	M	12.4	9.6	11.7	12.4	11.6	13.4	M
2021	12.4	6.3	M	10.8	11.6	12.6	8.9	12.0	10.9	14.5	8.1	13.2
2022	11.4	13.3	12.7	12.4	13.3	9.9	12.0	12.2	12.3	11.5	12.5	13.0
2023	9.7	12.5	10.7	11.1	14.4	11.7	12.0	11.7	12.2	10.6	12.3	12.6
2024	12.2	14.2	10.8	M	12.9	11.7	M	M	M	11.3	12.3	13.4
2025	14.0	9.9	10.5	12.7	12.1	13.3	10.8	11.2	11.6	11.4	11.0	10.4
2026	11.5	9.9	10.3	11.3	10.8	4.1	8.0	7.3	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	M	M	M	26.60
2006	M	M	M	M	M	M	M	M	M	38.88	25.16	26.27
2007	25.10	31.68	15.55	41.53	45.36	49.57	55.43	60.88	54.30	42.08	37.73	28.58
2008	20.03	18.80	27.78	34.70	45.80	49.65	54.14	56.99	52.81	39.11	26.75	30.58
2009	22.59	29.97	26.18	38.27	49.69	54.98	61.18	56.31	53.46	45.49	28.68	33.91
2010	23.25	28.63	25.03	35.89	45.86	55.03	55.79	55.80	55.56	43.02	34.46	19.82
2011	31.09	28.58	31.76	39.99	49.62	51.06	53.69	54.47	52.59	45.90	27.85	27.40
2012	7.72	31.42	18.72	37.74	41.85	48.35	53.83	56.89	50.59	40.44	23.40	22.82
2013	32.67	30.33	33.34	34.95	46.36	56.91	58.77	57.55	53.04	48.35	34.36	32.21
2014	39.71	28.44	35.40	47.00	49.98	51.42	61.32	61.89	57.90	40.94	40.99	37.68
2015	28.86	20.03	37.40	40.91	51.99	57.37	59.40	58.71	52.72	50.13	M	34.31
2016	36.96	38.45	38.61	49.46	54.42	58.14	61.07	63.51	58.49	48.95	32.92	29.55
2017	25.33	26.92	25.05	44.20	49.94	56.72	59.57	58.05	53.49	46.27	37.81	37.20
2018	34.39	36.71	37.09	44.03	48.97	56.18	59.42	58.89	56.90	49.88	42.25	27.40
2019	32.26	40.34	41.20	43.65	50.28	58.18	62.77	64.44	62.10	47.63	43.88	28.68
2020	14.63	30.31	32.55	38.10	M	55.03	60.77	59.52	54.77	45.62	36.41	M
2021	32.82	30.90	M	45.40	51.31	54.32	62.10	58.52	48.24	41.59	18.00	26.63
2022	17.07	37.54	35.03	39.88	48.12	58.31	57.27	56.93	53.57	47.77	38.12	33.53
2023	32.56	29.60	33.30	36.11	46.01	54.71	57.95	59.12	51.79	46.08	38.72	27.54
2024	25.01	34.33	31.02	M	46.02	52.07	M	M	M	42.03	38.73	37.58
2025	36.85	36.89	35.13	40.92	47.15	53.81	59.18	60.48	54.05	46.93	36.97	22.43
2026	14.57	28.94	16.61	33.12	37.00	M	55.20	60.55	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	M	M	M	26.10
2006	M	M	M	M	M	M	M	M	M	29.53	12.84	11.20
2007	10.66	17.56	-0.25	29.79	34.28	39.75	45.47	49.50	45.73	32.63	29.54	16.54
2008	7.64	3.89	17.11	23.73	33.94	39.45	44.94	43.71	43.18	27.57	13.47	22.11
2009	10.90	13.87	13.91	26.99	32.95	40.07	46.70	46.54	41.30	34.21	16.41	23.91
2010	11.87	19.10	10.56	23.11	33.31	39.86	44.71	47.31	42.14	30.94	22.06	5.78
2011	17.15	16.88	16.35	25.37	36.39	40.99	44.11	46.34	43.35	34.97	15.18	16.31
2012	-8.72	21.50	7.26	26.05	30.80	36.61	42.64	46.28	40.02	26.72	12.01	9.45
2013	21.17	19.19	22.91	20.58	33.09	42.99	47.13	49.31	42.35	38.36	23.43	20.09
2014	30.78	17.08	19.22	33.87	37.72	41.83	48.24	51.12	44.80	27.16	32.14	27.83
2015	16.77	3.22	22.65	28.61	40.35	44.82	49.01	50.08	43.18	40.92	M	23.82
2016	27.18	29.28	25.38	35.01	39.39	46.36	52.29	52.88	46.04	36.19	18.09	17.16
2017	11.00	10.62	6.84	30.13	35.40	42.80	48.15	48.76	43.69	35.95	24.99	26.44
2018	25.96	24.35	25.76	29.14	36.80	43.66	48.85	49.78	47.19	38.58	30.61	15.86
2019	21.28	29.55	30.52	30.18	38.69	45.82	52.59	52.11	55.90	36.73	34.30	16.55
2020	0.58	16.12	19.84	28.40	M	46.30	48.68	50.93	42.01	34.61	24.11	M
2021	22.04	30.00	M	31.20	37.88	44.98	50.00	49.58	34.49	33.68	5.87	13.03
2022	6.20	27.84	24.02	27.75	37.03	45.14	47.88	48.95	44.99	37.52	26.95	19.96
2023	21.45	16.84	20.32	22.59	36.16	44.59	48.19	49.57	42.63	32.64	28.66	15.31
2024	13.67	24.32	17.31	M	35.37	39.56	M	M	M	30.02	30.21	29.64
2025	25.51	25.41	24.94	30.41	37.15	43.14	49.65	51.75	43.14	36.46	26.89	10.33
2026	7.88	15.43	1.65	25.54	34.00	M	45.43	49.05	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	M	M	M	26.35
2006	M	M	M	M	M	M	M	M	M	34.20	19.00	18.74
2007	17.88	24.62	7.65	35.66	39.82	44.66	50.45	55.19	50.02	37.35	33.63	22.56
2008	13.83	11.35	22.45	29.21	39.87	44.55	49.54	50.35	48.00	33.34	20.11	26.35
2009	16.74	21.92	20.05	32.63	41.32	47.53	53.94	51.43	47.38	39.85	22.54	28.91
2010	17.56	23.86	17.79	29.50	39.58	47.45	50.25	51.56	48.85	36.98	28.26	12.80
2011	24.12	22.73	24.06	32.68	43.01	46.02	48.90	50.41	47.97	40.43	21.51	21.86
2012	-0.50	26.46	12.99	31.90	36.33	42.48	48.24	51.59	45.31	33.58	17.70	16.14
2013	26.92	24.76	28.12	27.77	39.73	49.95	52.95	53.43	47.70	43.35	28.90	26.15
2014	35.24	22.76	27.31	40.44	43.85	46.62	54.78	56.50	51.35	34.05	36.57	32.75
2015	22.82	11.63	30.03	34.76	46.17	51.09	54.21	54.40	47.95	45.53	M	29.06
2016	32.07	33.87	31.99	42.23	46.91	52.25	56.68	58.19	52.26	42.57	25.50	23.35
2017	18.16	18.77	15.95	37.17	42.67	49.76	53.86	53.41	48.59	41.11	31.40	31.82
2018	30.18	30.53	31.43	36.58	42.89	49.92	54.13	54.33	52.05	44.23	36.43	21.63
2019	26.77	34.94	35.86	36.92	44.48	52.00	57.68	58.28	59.00	42.18	39.09	22.62
2020	7.60	23.22	26.20	33.25	M	50.67	54.72	55.23	48.39	40.11	30.26	M
2021	27.43	30.45	M	38.30	44.59	49.65	56.05	54.05	41.37	37.64	11.94	19.83
2022	11.63	32.69	29.52	33.81	42.57	51.73	52.58	52.94	49.28	42.64	32.54	26.75
2023	27.01	23.22	26.81	29.35	41.08	49.65	53.07	54.35	47.21	39.36	33.69	21.42
2024	19.34	29.32	24.16	M	40.69	45.81	M	M	M	36.02	34.47	33.61
2025	31.18	31.15	30.04	35.66	42.15	48.48	54.41	56.12	48.60	41.69	31.93	16.38
2026	11.23	22.19	9.13	29.33	35.50	M	50.32	54.80	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	M	M	M	M
2006	M	M	M	M	M	M	M	M	M	80.2%	74.2%	83.8%
2007	78.7%	81.8%	71.2%	80.2%	81.8%	82.6%	85.2%	83.6%	82.9%	80.8%	81.7%	79.7%
2008	79.5%	78.2%	80.5%	77.1%	76.1%	80.0%	83.1%	82.6%	85.0%	79.3%	81.3%	81.3%
2009	79.3%	81.3%	78.3%	78.5%	76.3%	77.2%	80.3%	83.0%	62.2%	83.6%	80.1%	83.5%
2010	82.3%	85.4%	80.3%	81.4%	80.3%	77.5%	86.5%	89.3%	80.8%	83.1%	79.6%	77.9%
2011	85.1%	77.5%	76.9%	77.3%	75.5%	81.2%	87.1%	87.5%	85.6%	82.2%	75.2%	82.2%
2012	75.0%	82.8%	81.1%	82.4%	81.1%	84.8%	87.3%	84.8%	82.0%	75.8%	76.1%	79.9%
2013	83.5%	85.3%	82.4%	68.9%	74.9%	76.9%	88.0%	88.4%	78.9%	81.1%	81.9%	82.0%
2014	87.1%	79.6%	78.9%	78.1%	81.9%	81.1%	79.9%	83.5%	78.4%	77.9%	87.0%	86.8%
2015	84.9%	72.9%	74.9%	77.9%	73.8%	79.1%	80.2%	81.7%	81.8%	85.3%	M	87.9%
2016	88.0%	85.0%	83.0%	77.2%	80.0%	83.0%	84.9%	86.4%	80.6%	79.6%	88.8%	84.8%
2017	83.5%	84.1%	69.2%	81.1%	78.7%	79.8%	86.3%	84.8%	83.6%	82.6%	84.5%	90.2%
2018	89.8%	85.7%	86.2%	79.3%	78.8%	81.7%	84.2%	88.0%	86.6%	86.2%	88.3%	86.7%
2019	87.2%	83.7%	84.8%	76.1%	79.7%	84.1%	83.3%	83.3%	79.1%	83.4%	87.9%	87.2%
2020	85.9%	84.5%	85.2%	87.8%	M	83.9%	89.3%	88.3%	84.2%	84.8%	86.3%	M
2021	90.5%	93.9%	M	84.2%	78.1%	78.7%	84.7%	84.6%	80.3%	85.6%	79.7%	85.5%
2022	80.9%	89.0%	83.5%	80.3%	81.6%	84.5%	91.3%	92.7%	89.2%	87.0%	89.1%	89.0%
2023	93.1%	89.4%	85.1%	78.3%	85.6%	85.2%	88.9%	87.1%	85.4%	82.2%	86.6%	89.8%
2024	83.9%	88.2%	82.5%	M	81.6%	83.8%	M	M	M	88.1%	89.9%	90.2%
2025	87.8%	90.1%	84.0%	86.1%	84.5%	83.2%	88.8%	89.5%	86.0%	90.4%	90.8%	80.2%
2026	84.1%	85.5%	77.3%	87.1%	88.7%	M	90.2%	89.7%	M	M	M	M