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 (USW00025624) 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	0.19	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	0.13	0.61	1.24	2.90	1.42	3.96	3.84	2.41	1.55	0.54
2011	0.22	0.19	0.09	0.35	3.07	2.12	1.35	0.91	2.50	3.34	7.62	6.68
2012	0.35	2.17	0.77	1.14	2.52	1.20	3.78	2.40	5.76	5.42	4.16	2.21
2013	4.89	1.28	3.32	1.97	4.42	5.84	2.39	4.77	6.96	8.58	2.33	7.27
2014	6.72	5.28	1.85	5.04	1.05	1.45	1.97	4.25	8.04	3.25	5.72	3.92
2015	1.28	2.85	3.28	1.97	7.11	1.09	3.75	1.19	6.97	6.76	6.41	7.60
2016	2.12	1.12	1.39	5.94	3.60	3.25	1.46	5.98	11.70	11.52	4.23	6.77
2017	4.27	0.85	0.01	3.13	6.42	2.56	2.25	6.45	7.15	9.49	5.90	4.47
2018	2.93	9.00	3.09	5.51	6.03	4.73	6.53	6.66	5.33	9.41	8.29	4.11
2019	5.06	9.45	5.15	3.67	4.83	6.74	2.13	3.17	15.51	10.24	8.86	4.18
2020	2.14	0.83	1.90	0.11	0.29	3.39	3.76	5.27	9.78	6.34	14.17	8.49
2021	0.35	0.36	0.02	0.15	0.24	0.06	0.03	1.23	0.71	0.01	0.32	0.09
2022	0.07	0.01	0.06	0.01	0.00	0.00	0.00	0.00	M	0.02	0.00	0.25
2023	0.00	0.00	M	0.00	M	0.00	M	M	M	M	M	1.33
2024	0.02	0.18	0.67	0.26	3.36	0.00	M	0.00	0.00	0.05	0.11	0.00
2025	M	M	0.03	0.22	M	M	0.00	M	0.00	M	M	M
2026	M	M	0.02	7.25	5.44	0.80	5.91	0.26	0.16	M	M	M
NCEI Climatology	3.38	3.28	2.98	2.70	2.64	2.74	2.51	3.71	4.50	4.93	4.99	4.42

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	18.5	15.7	10.3	6.1
2006	12.1	15.1	12.5	M	M	M	M	M	M	3.4	M	M
2007	20.5	14.0	15.8	14.3	12.5	14.3	12.4	10.1	14.4	13.2	15.7	10.0
2008	0.8	16.8	16.4	16.1	14.2	13.2	12.0	11.7	10.6	13.0	20.0	18.6
2009	11.1	14.1	16.4	15.3	15.2	10.7	8.5	11.2	9.7	10.6	15.5	6.9
2010	0.0	10.9	16.1	16.3	14.4	14.3	11.1	12.3	13.3	12.4	12.6	21.7
2011	15.3	20.3	12.3	18.2	13.2	14.6	11.5	12.6	15.5	16.3	15.0	13.4
2012	14.8	16.3	16.9	14.7	14.7	16.1	12.9	13.4	13.1	15.6	17.3	18.4
2013	14.7	15.7	13.4	15.1	13.5	13.4	10.3	13.3	15.8	14.7	12.8	15.1
2014	14.2	14.1	15.2	12.1	14.4	13.2	11.5	9.7	11.8	15.1	12.4	5.4
2015	2.6	13.1	12.8	15.5	11.8	13.9	11.4	10.9	13.7	12.1	15.8	15.2
2016	13.6	11.2	9.8	14.5	12.1	11.8	12.5	10.5	10.8	14.5	12.9	14.1
2017	10.2	11.5	12.4	15.5	11.7	11.1	13.2	12.8	13.0	13.9	17.5	12.6
2018	16.6	11.8	4.9	12.4	11.6	10.8	11.2	13.6	11.7	12.5	14.4	12.6
2019	11.5	13.4	12.3	13.5	10.3	13.6	10.8	10.0	13.6	13.3	12.9	14.9
2020	11.0	13.2	13.2	11.6	10.7	10.7	9.8	11.8	12.0	10.8	15.8	13.4
2021	16.5	13.8	12.6	13.6	13.6	11.9	11.7	10.7	12.3	17.9	12.7	15.9
2022	13.8	11.8	14.0	13.7	13.4	11.8	12.1	11.7	12.7	13.7	13.9	14.9
2023	10.0	12.1	13.3	12.9	13.0	10.8	12.2	10.4	11.8	12.8	11.8	13.3
2024	10.5	14.5	12.8	13.0	12.2	11.9	11.1	11.4	11.8	13.3	14.5	11.5
2025	13.6	12.1	14.5	12.5	14.0	11.5	11.1	9.7	12.4	12.4	12.2	15.2
2026	13.7	12.9	18.7	13.0	13.2	14.2	13.9	11.9	13.7	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	46.40	44.53	34.70	38.50
2006	28.23	34.64	37.05	36.59	46.35	51.60	55.44	52.00	47.86	46.01	37.15	M
2007	34.61	36.29	27.14	38.82	42.52	47.89	55.28	56.16	52.10	43.40	38.36	34.51
2008	29.68	29.58	29.54	35.96	41.27	48.07	52.44	55.14	52.12	42.85	36.28	37.00
2009	31.00	35.38	30.75	36.93	47.88	49.52	53.63	53.92	52.30	46.59	36.59	39.07
2010	34.41	32.07	29.24	35.97	44.44	49.13	52.72	54.77	52.94	44.49	39.88	34.48
2011	37.21	37.70	37.69	38.62	45.56	47.57	53.75	56.11	49.83	45.38	39.63	35.61
2012	26.09	34.58	25.81	37.72	40.76	49.06	52.85	55.53	49.50	43.61	36.96	35.83
2013	37.53	34.71	37.64	40.27	45.10	53.55	58.54	58.47	52.87	48.62	42.98	40.05
2014	41.26	35.83	38.38	43.57	53.16	55.58	61.22	62.57	57.71	45.81	43.46	40.41
2015	39.54	42.09	40.83	41.52	47.81	57.28	57.03	59.81	53.05	47.88	41.25	38.21
2016	15.75	40.23	40.29	43.69	48.88	53.89	59.31	59.91	56.41	50.27	41.43	38.85
2017	34.23	33.51	35.19	39.02	45.85	52.24	57.01	55.42	52.29	47.87	44.68	39.52
2018	36.63	39.51	39.89	42.53	45.05	50.56	54.25	57.05	55.79	49.07	44.37	37.12
2019	38.56	40.97	40.15	41.32	45.77	53.77	56.76	61.04	54.44	49.26	45.37	37.17
2020	29.38	37.04	37.34	41.99	47.12	52.19	56.37	56.63	52.47	47.12	41.05	36.31
2021	33.30	M	M	43.02	45.26	50.43	55.29	55.92	51.86	44.05	33.33	39.54
2022	34.19	37.98	35.66	38.82	46.88	52.12	55.39	55.37	51.25	46.50	42.65	39.81
2023	36.22	37.76	37.09	37.61	43.64	49.21	54.15	56.09	51.83	47.50	42.23	34.18
2024	37.00	36.45	34.11	39.26	41.66	48.08	53.19	52.93	M	M	40.50	40.20
2025	39.41	39.30	35.12	40.27	44.19	49.53	56.98	58.61	52.12	47.32	40.90	37.51
2026	33.52	38.29	24.43	39.78	43.12	53.54	53.65	56.13	55.65	M	M	M
NCEI Climatology	33.60	35.42	35.79	40.60	46.99	52.61	56.50	57.50	53.80	46.90	40.39	36.00

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	40.10	37.17	27.80	32.99
2006	18.94	27.44	28.18	27.65	34.29	41.05	46.96	48.00	43.71	38.86	27.97	M
2007	27.45	30.30	17.48	30.91	34.07	39.82	45.95	49.17	45.84	36.20	32.46	26.43
2008	23.40	19.26	20.57	28.02	34.51	41.47	43.65	45.98	44.27	34.49	26.80	29.56
2009	20.97	24.77	21.59	28.42	34.61	41.08	46.17	46.86	43.50	38.42	27.70	31.87
2010	25.80	23.94	16.12	26.49	33.99	40.67	43.98	47.31	46.30	36.25	32.57	26.38
2011	28.66	28.34	25.95	29.57	37.89	42.71	45.49	47.29	43.73	38.84	30.47	28.17
2012	15.27	26.27	17.44	28.60	33.05	39.16	44.56	47.55	40.62	37.63	26.91	24.97
2013	29.43	24.44	26.26	28.76	34.20	42.72	49.32	49.77	44.71	40.64	32.67	33.32
2014	33.72	26.25	28.78	33.19	37.16	42.64	49.64	50.70	46.26	36.28	36.11	31.65
2015	28.83	30.77	31.26	30.58	39.33	43.83	47.73	48.69	44.94	39.40	32.88	30.36
2016	-0.32	31.97	29.20	36.66	39.54	44.26	49.99	51.86	46.84	42.08	32.73	30.36
2017	22.58	23.25	20.30	31.68	36.17	42.51	47.20	48.47	43.89	38.94	36.15	30.94
2018	26.48	32.83	30.89	33.75	36.59	42.75	47.15	48.39	45.95	41.29	36.22	25.60
2019	32.35	35.08	32.11	33.65	38.51	45.31	49.11	51.11	48.24	40.05	37.90	29.18
2020	18.62	27.57	28.37	34.38	39.25	44.33	49.29	48.90	42.45	37.72	33.03	27.74
2021	25.88	M	M	34.24	38.29	44.31	47.53	48.59	44.40	37.15	24.20	31.94
2022	25.47	30.60	27.79	31.39	36.13	43.20	47.61	48.04	43.95	38.45	34.83	32.42
2023	26.44	26.97	29.44	29.00	35.20	42.72	48.05	48.26	44.18	40.98	34.77	25.06
2024	25.35	28.88	25.25	32.51	34.87	41.74	46.64	49.08	M	M	35.40	33.26
2025	31.49	32.96	26.84	31.58	36.81	42.11	48.96	51.13	44.91	38.55	32.80	28.97
2026	23.76	26.74	14.25	32.10	33.55	41.13	44.61	49.40	52.85	M	M	M
NCEI Climatology	23.20	25.38	24.30	29.70	35.40	41.91	46.80	47.91	43.40	35.89	30.50	25.89

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	43.25	40.85	31.25	35.75
2006	23.58	31.04	32.62	32.12	40.32	46.33	51.20	50.00	45.79	42.43	32.56	M
2007	31.03	33.29	22.31	34.87	38.30	43.85	50.62	52.66	48.97	39.80	35.41	30.47
2008	26.54	24.42	25.05	31.99	37.89	44.77	48.04	50.56	48.20	38.67	31.54	33.28
2009	25.99	30.08	26.17	32.68	41.24	45.30	49.90	50.39	47.90	42.50	32.14	35.47
2010	30.10	28.00	22.68	31.23	39.22	44.90	48.35	51.04	49.62	40.37	36.23	30.43
2011	32.93	33.02	31.82	34.09	41.73	45.14	49.62	51.70	46.78	42.11	35.05	31.89
2012	20.68	30.42	21.63	33.16	36.91	44.11	48.70	51.54	45.06	40.62	31.93	30.40
2013	33.48	29.58	31.95	34.52	39.65	48.13	53.93	54.12	48.79	44.63	37.82	36.68
2014	37.49	31.04	33.58	38.38	45.16	49.11	55.43	56.63	51.98	41.04	39.79	36.03
2015	34.18	36.43	36.04	36.05	43.57	50.56	52.38	54.25	49.00	43.64	37.06	34.28
2016	7.72	36.10	34.75	40.18	44.21	49.08	54.65	55.88	51.63	46.18	37.08	34.60
2017	28.40	28.38	27.75	35.35	41.01	47.38	52.10	51.95	48.09	43.40	40.42	35.23
2018	31.55	36.17	35.39	38.14	40.82	46.65	50.70	52.72	50.87	45.18	40.29	31.36
2019	35.45	38.03	36.13	37.49	42.14	49.54	52.94	56.07	51.34	44.66	41.64	33.18
2020	24.00	32.31	32.85	38.19	43.18	48.26	52.83	52.76	47.46	42.42	37.04	32.02
2021	29.59	M	M	38.63	41.78	47.37	51.41	52.25	48.13	40.60	28.76	35.74
2022	29.83	34.29	31.73	35.11	41.51	47.66	51.50	51.70	47.60	42.48	38.74	36.12
2023	31.33	32.36	33.27	33.31	39.42	45.97	51.10	52.17	48.00	44.24	38.50	29.62
2024	31.18	32.66	29.68	35.88	38.27	44.91	49.91	51.01	M	M	37.95	36.73
2025	35.45	36.13	30.98	35.92	40.50	45.82	52.97	54.87	48.51	42.94	36.85	33.24
2026	28.64	32.51	19.34	35.94	38.34	47.34	49.13	52.77	54.25	M	M	M
NCEI Climatology	28.40	30.40	30.04	35.15	41.20	47.26	51.65	52.70	48.60	41.40	35.44	30.95

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	78.6%	75.0%	74.7%	82.7%
2006	75.3%	78.1%	77.6%	M	M	M	M	M	M	92.6%	M	M
2007	80.1%	82.0%	65.8%	81.4%	79.9%	82.3%	83.9%	85.8%	81.2%	77.1%	78.8%	73.4%
2008	76.0%	77.4%	77.1%	78.6%	83.7%	86.7%	87.2%	83.9%	84.6%	77.1%	82.3%	85.0%
2009	77.5%	78.3%	76.0%	82.8%	78.4%	84.1%	89.3%	85.4%	82.4%	78.2%	75.2%	84.9%
2010	81.5%	83.2%	79.5%	83.3%	89.1%	96.0%	96.9%	87.2%	81.2%	75.9%	74.3%	67.5%
2011	81.2%	78.5%	77.0%	78.8%	84.0%	88.2%	89.6%	90.0%	89.1%	83.2%	79.7%	82.5%
2012	73.7%	86.1%	78.7%	84.1%	85.4%	83.6%	90.9%	97.9%	97.0%	78.6%	67.4%	11.6%
2013	85.5%	79.4%	76.4%	72.2%	78.0%	85.7%	87.8%	84.9%	80.6%	81.5%	77.7%	83.0%
2014	81.5%	75.8%	75.7%	80.4%	73.5%	75.6%	78.4%	82.4%	75.4%	70.2%	76.7%	80.4%
2015	70.5%	77.4%	76.0%	72.4%	82.3%	77.6%	83.5%	81.4%	79.3%	86.8%	81.8%	83.8%
2016	84.6%	77.4%	74.3%	84.2%	81.8%	84.8%	86.5%	89.8%	82.3%	80.1%	76.7%	81.3%
2017	80.9%	76.5%	64.5%	84.0%	84.0%	82.3%	87.5%	84.3%	82.4%	79.7%	78.9%	83.3%
2018	79.2%	83.8%	79.8%	79.3%	82.7%	86.9%	90.3%	87.7%	85.1%	80.3%	81.8%	77.7%
2019	82.1%	83.7%	78.4%	80.3%	83.3%	86.5%	87.8%	86.9%	84.7%	83.2%	83.9%	77.8%
2020	78.3%	86.0%	83.1%	83.6%	85.8%	87.9%	89.8%	87.8%	84.5%	81.7%	78.7%	80.3%
2021	82.6%	M	M	83.9%	87.8%	89.7%	92.5%	87.9%	80.3%	79.0%	78.1%	86.8%
2022	80.1%	89.2%	84.1%	85.1%	80.4%	90.2%	90.4%	90.1%	88.6%	83.4%	86.9%	88.1%
2023	88.7%	87.0%	84.9%	77.7%	87.2%	93.6%	96.4%	93.4%	88.9%	87.4%	87.9%	85.2%
2024	80.5%	85.6%	82.6%	87.9%	88.8%	91.3%	96.9%	89.8%	M	M	81.9%	85.5%
2025	87.1%	85.8%	74.5%	84.3%	83.9%	87.4%	90.2%	88.8%	82.9%	81.5%	81.0%	76.3%
2026	81.0%	76.8%	70.5%	85.1%	82.0%	84.5%	88.8%	93.2%	94.8%	M	M	M