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 (USW00026615) 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	0.00	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	0.00	0.00	0.00	0.00	0.00	0.07	0.13	1.11	0.66	0.42	0.11
2011	0.00	M	0.00	0.00	0.92	0.42	0.97	1.31	0.53	0.00	0.00	0.00
2012	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2013	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.38	1.74	3.24	1.14	1.58
2014	0.60	0.30	0.01	0.05	0.31	0.69	1.73	2.74	1.77	0.32	1.24	0.55
2015	0.10	0.19	0.12	0.11	1.56	0.50	1.02	2.54	2.65	1.06	0.98	0.18
2016	0.28	0.04	0.09	0.29	0.68	1.21	1.85	2.66	4.46	1.49	0.20	0.07
2017	0.41	0.00	0.00	M	0.49	0.39	1.25	1.02	1.47	1.55	0.80	0.04
2018	M	0.00	0.00	0.16	0.92	1.39	0.94	2.18	1.35	2.36	0.60	0.08
2019	0.00	0.18	0.27	0.10	1.79	0.37	0.74	1.35	4.91	1.01	0.10	0.00
2020	0.00	0.06	0.00	0.00	0.68	0.27	0.23	0.57	2.17	1.04	1.00	0.01
2021	0.02	0.07	0.09	0.14	0.07	0.19	0.00	0.00	0.27	1.00	0.01	0.39
2022	0.01	0.11	0.02	0.01	0.03	0.13	0.74	0.27	0.25	0.08	0.03	0.03
2023	0.01	M	0.00	0.01	0.03	0.00	M	0.00	0.00	0.03	M	0.00
2024	0.00	0.00	0.00	0.01	0.00	0.00	0.55	2.60	0.52	M	M	M
2025	M	M	M	M	M	0.81	1.16	2.00	0.84	0.34	0.01	0.00
2026	0.00	0.00	0.00	0.00	0.00	0.00	M	0.00	M	M	M	M
NCEI Climatology	0.77	0.91	0.74	0.79	1.21	1.77	2.57	3.36	2.89	1.84	1.80	1.06

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	14.4	13.2	16.5	13.8
2006	14.5	19.5	16.7	18.0	15.1	7.2	14.3	9.1	19.3	23.1	13.4	15.2
2007	14.6	13.2	16.0	13.9	12.5	11.6	10.4	6.3	0.0	0.0	0.0	5.1
2008	19.1	21.7	17.2	15.0	12.7	11.2	15.1	10.1	10.5	12.3	7.1	17.8
2009	14.1	16.8	8.4	0.7	13.4	14.0	14.5	13.4	11.9	14.9	15.8	16.2
2010	21.4	12.9	12.7	13.0	11.0	14.9	10.7	12.9	16.3	10.6	13.2	4.3
2011	21.9	M	15.8	17.8	12.5	13.0	14.8	13.3	15.1	12.3	18.5	15.4
2012	16.8	15.3	14.4	14.3	14.3	11.3	13.4	13.6	1.4	17.0	17.5	14.8
2013	17.6	15.1	14.2	13.3	12.9	10.8	9.6	10.3	12.2	17.2	11.8	12.8
2014	16.1	3.8	13.8	14.6	13.0	13.0	11.0	10.2	12.9	15.6	13.0	13.6
2015	14.8	17.4	13.5	0.6	13.3	12.6	8.6	11.5	0.3	3.7	16.0	18.9
2016	19.5	15.5	20.6	11.3	15.9	12.8	12.8	10.9	13.9	16.9	14.5	15.9
2017	12.9	16.8	13.6	M	10.6	12.9	9.7	11.4	14.5	16.8	14.2	18.2
2018	M	15.8	14.7	15.9	14.9	13.2	12.9	10.3	12.4	15.5	13.9	14.8
2019	4.0	20.6	15.3	13.8	12.3	8.6	10.5	11.9	16.3	10.8	15.4	14.7
2020	13.3	16.4	10.3	18.5	12.6	11.4	13.3	11.2	13.5	6.2	14.9	17.4
2021	19.5	18.3	15.5	14.1	11.7	11.7	13.5	10.7	12.8	14.1	11.4	16.6
2022	16.5	18.2	14.2	8.5	12.7	13.2	10.9	14.7	13.7	12.1	14.6	16.2
2023	10.8	M	0.0	0.0	0.0	0.0	M	0.0	0.0	0.0	M	0.0
2024	10.0	16.6	22.4	16.4	13.4	13.6	11.6	17.7	11.6	M	M	M
2025	M	M	M	M	M	14.7	11.0	15.7	13.4	15.7	15.1	19.4
2026	17.3	16.5	16.7	15.5	12.5	11.3	11.6	12.2	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	42.80	37.75	19.09	23.88
2006	3.87	24.96	20.08	22.06	41.16	49.97	55.69	53.79	51.06	41.95	27.88	17.96
2007	14.69	24.48	10.99	35.52	43.53	50.42	57.63	58.81	51.79	36.41	28.90	21.74
2008	9.67	9.49	16.57	25.49	40.21	48.55	52.79	50.00	52.37	31.03	19.90	23.08
2009	12.58	19.12	9.55	25.39	40.79	52.42	56.36	55.36	50.12	41.53	20.70	25.39
2010	12.96	21.05	14.74	25.48	44.55	49.01	53.29	54.03	50.45	37.63	29.46	17.67
2011	17.74	M	21.68	26.56	44.46	50.37	50.00	52.30	49.08	36.68	31.31	17.28
2012	-0.96	22.03	8.95	28.96	36.79	48.68	53.08	55.11	45.16	37.11	21.88	14.30
2013	22.76	12.42	20.67	24.67	36.99	51.49	57.45	55.96	48.39	42.05	29.92	24.28
2014	32.91	20.98	20.15	36.85	43.46	50.45	56.58	60.92	54.20	35.43	32.79	26.95
2015	20.76	25.76	24.76	29.52	45.88	56.40	57.11	53.05	48.45	42.28	31.46	21.00
2016	26.30	28.28	25.14	44.92	53.15	56.72	60.95	61.08	53.94	41.97	25.93	23.57
2017	18.34	16.94	22.14	M	49.42	54.78	58.40	55.70	50.23	45.87	37.23	30.14
2018	M	31.81	29.26	35.43	44.18	56.11	57.88	55.67	54.84	46.55	32.48	17.02
2019	21.26	32.13	32.82	34.33	47.26	54.92	60.32	59.64	52.96	43.40	30.09	17.22
2020	8.21	12.57	15.29	32.00	52.08	53.26	50.79	55.73	50.10	42.73	31.43	21.87
2021	32.90	21.27	25.50	33.57	46.61	53.89	54.02	53.18	43.82	37.05	17.04	26.12
2022	13.79	21.62	30.72	35.86	45.75	59.98	57.48	53.85	50.18	39.27	29.73	21.84
2023	11.65	M	12.47	23.14	40.78	53.94	M	54.15	48.69	38.45	M	15.65
2024	15.43	23.31	18.35	32.77	38.63	51.59	54.72	52.81	50.84	M	M	M
2025	M	M	M	M	M	53.38	57.68	56.23	49.31	40.74	28.68	21.69
2026	15.59	22.93	13.50	32.27	41.19	57.37	55.39	57.30	M	M	M	M
NCEI Climatology	12.70	20.13	21.99	36.90	52.00	62.10	63.60	60.50	52.71	37.91	24.31	16.30

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	37.40	29.35	9.75	13.61
2006	-4.36	14.09	8.96	11.78	30.47	39.10	45.96	45.12	41.94	33.21	18.81	8.74
2007	4.62	11.83	-0.25	25.02	31.72	40.58	47.26	50.29	45.57	30.51	23.59	11.24
2008	0.87	-1.03	6.86	15.47	30.77	39.18	44.56	46.40	42.42	20.80	9.58	13.29
2009	-0.56	4.00	-1.56	13.89	30.38	40.64	46.65	45.31	39.18	33.35	10.89	15.33
2010	3.81	8.52	-0.03	14.21	30.72	38.66	45.15	47.45	42.72	28.95	21.47	4.90
2011	5.03	M	11.44	15.28	33.09	41.82	43.05	43.98	41.34	28.77	20.88	8.86
2012	-11.85	11.66	-0.45	19.89	26.74	36.99	44.42	45.74	37.11	29.65	12.35	3.64
2013	11.32	0.01	6.98	12.96	26.16	39.40	46.23	47.80	39.04	34.62	19.75	14.91
2014	25.32	12.34	9.36	26.09	32.57	40.02	46.94	49.14	44.07	26.96	24.93	18.73
2015	10.93	15.76	13.44	19.85	35.88	42.79	48.37	46.31	39.57	34.88	22.83	8.91
2016	17.33	18.68	13.78	32.60	38.21	45.15	51.18	51.79	43.96	32.94	16.03	14.54
2017	7.15	4.21	7.09	M	36.27	45.03	47.78	46.03	41.16	38.49	28.99	23.77
2018	M	24.69	17.23	26.73	34.72	44.18	49.21	48.77	46.45	38.58	24.03	8.77
2019	13.31	25.96	24.26	24.75	38.22	45.45	51.79	50.39	45.32	34.92	22.01	7.52
2020	-2.45	1.29	6.44	30.20	41.72	45.05	48.13	47.91	40.63	34.62	23.86	12.24
2021	28.85	9.63	9.06	22.43	34.50	44.86	47.70	48.79	32.02	29.56	6.84	17.64
2022	1.96	10.87	22.59	25.25	33.23	46.96	48.68	46.16	42.33	31.53	21.75	13.30
2023	3.66	M	4.62	12.33	31.03	43.63	M	47.31	40.45	29.81	M	4.31
2024	5.23	13.59	9.66	23.77	30.19	42.86	45.92	46.32	43.64	M	M	M
2025	M	M	M	M	M	44.46	48.30	49.59	40.50	32.74	19.84	10.40
2026	3.11	9.71	1.80	24.03	31.77	44.20	46.48	50.67	M	M	M	M
NCEI Climatology	0.90	6.50	7.00	21.21	34.10	44.50	49.01	47.31	39.41	26.40	12.80	3.71

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	40.10	33.55	14.42	18.74
2006	-0.25	19.52	14.52	16.92	35.82	44.53	50.82	49.46	46.50	37.58	23.35	13.35
2007	9.65	18.16	5.37	30.27	37.62	45.50	52.44	54.55	48.68	33.46	26.25	16.49
2008	5.27	4.23	11.72	20.48	35.49	43.87	48.67	48.20	47.39	25.91	14.74	18.19
2009	6.01	11.56	4.00	19.64	35.59	46.53	51.51	50.34	44.65	37.44	15.80	20.36
2010	8.38	14.78	7.36	19.84	37.64	43.84	49.22	50.74	46.59	33.29	25.47	11.28
2011	11.38	M	16.56	20.92	38.77	46.10	46.53	48.14	45.21	32.73	26.10	13.07
2012	-6.41	16.85	4.25	24.42	31.76	42.83	48.75	50.43	41.13	33.38	17.12	8.97
2013	17.04	6.22	13.82	18.81	31.58	45.45	51.84	51.88	43.72	38.33	24.84	19.59
2014	29.11	16.66	14.75	31.47	38.02	45.23	51.76	55.03	49.14	31.20	28.86	22.84
2015	15.85	20.76	19.10	24.69	40.88	49.60	52.74	49.68	44.01	38.58	27.15	14.95
2016	21.81	23.48	19.46	38.76	45.68	50.93	56.07	56.43	48.95	37.46	20.98	19.06
2017	12.74	10.58	14.61	M	42.85	49.91	53.09	50.86	45.70	42.18	33.11	26.96
2018	M	28.25	23.25	31.08	39.45	50.15	53.55	52.22	50.64	42.56	28.26	12.89
2019	17.29	29.05	28.54	29.54	42.74	50.19	56.06	55.02	49.14	39.16	26.05	12.37
2020	2.88	6.93	10.87	31.10	46.90	49.16	49.46	51.82	45.36	38.67	27.64	17.05
2021	30.88	15.45	17.28	28.00	40.55	49.38	50.86	50.98	37.92	33.30	11.94	21.88
2022	7.87	16.24	26.66	30.55	39.49	53.47	53.08	50.01	46.26	35.40	25.74	17.57
2023	7.66	M	8.54	17.73	35.90	48.79	M	50.73	44.57	34.13	M	9.98
2024	10.32	18.45	14.00	28.27	34.41	47.23	50.32	49.57	47.24	M	M	M
2025	M	M	M	M	M	48.92	52.99	52.91	44.90	36.74	24.26	16.05
2026	9.35	16.32	7.65	28.15	36.48	50.78	50.94	53.98	M	M	M	M
NCEI Climatology	6.80	13.32	14.50	29.06	43.05	53.30	56.30	53.90	46.06	32.15	18.56	10.00

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	80.5%	83.4%	76.8%	82.2%
2006	77.1%	86.4%	84.9%	89.5%	92.2%	93.4%	93.6%	96.1%	96.6%	92.1%	91.8%	85.6%
2007	86.4%	80.9%	73.7%	82.9%	81.4%	85.7%	85.0%	86.2%	86.7%	82.8%	84.1%	80.1%
2008	81.8%	71.8%	84.3%	85.6%	84.8%	84.3%	82.5%	94.8%	83.8%	79.7%	91.0%	87.9%
2009	78.0%	86.8%	78.1%	84.8%	79.0%	82.1%	83.6%	82.8%	85.3%	83.9%	78.8%	82.0%
2010	65.7%	83.1%	74.5%	83.7%	80.2%	85.0%	90.8%	89.4%	82.0%	85.5%	87.0%	78.9%
2011	74.9%	M	66.7%	83.0%	80.0%	82.4%	88.6%	87.1%	85.8%	83.2%	86.2%	86.0%
2012	74.9%	85.6%	80.6%	81.9%	79.8%	85.3%	86.8%	86.7%	83.2%	76.5%	71.7%	77.7%
2013	84.3%	79.4%	81.1%	74.1%	81.4%	87.1%	87.9%	87.2%	83.7%	88.5%	85.2%	80.7%
2014	90.5%	81.4%	73.1%	79.3%	81.5%	81.8%	85.4%	84.5%	80.8%	77.7%	86.6%	84.5%
2015	76.2%	77.6%	79.3%	85.3%	87.3%	79.6%	84.8%	87.8%	85.9%	88.0%	87.0%	82.6%
2016	80.2%	79.7%	72.6%	78.3%	80.3%	80.8%	83.0%	83.5%	82.5%	79.9%	82.7%	82.4%
2017	86.7%	85.4%	76.4%	M	77.1%	81.2%	84.2%	80.5%	84.4%	87.4%	87.9%	92.2%
2018	M	92.1%	89.3%	83.1%	84.4%	79.5%	86.2%	87.9%	85.5%	87.9%	88.6%	84.1%
2019	92.6%	94.0%	90.5%	77.8%	85.3%	81.5%	84.1%	85.2%	87.2%	84.6%	77.5%	82.6%
2020	81.9%	80.7%	85.7%	99.8%	78.1%	84.5%	95.2%	85.8%	82.1%	87.1%	89.9%	86.8%
2021	94.8%	84.7%	89.9%	85.8%	78.8%	83.2%	91.3%	87.1%	82.8%	90.1%	80.1%	92.8%
2022	77.7%	90.2%	88.0%	82.5%	81.4%	73.9%	88.3%	89.6%	89.9%	89.3%	88.8%	80.1%
2023	84.3%	M	77.3%	78.9%	85.3%	83.9%	M	90.8%	86.4%	85.4%	M	86.3%
2024	80.9%	91.1%	85.9%	92.1%	86.3%	83.6%	87.3%	90.6%	91.3%	M	M	M
2025	M	M	M	M	M	89.2%	89.8%	90.1%	83.7%	86.6%	88.2%	80.3%
2026	86.3%	85.7%	80.6%	92.6%	87.1%	80.1%	86.1%	92.7%	M	M	M	M