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 (USC00211107) 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
1998	M	M	M	M	M	M	M	M	M	M	M	0.00
1999	0.11	0.02	0.20	2.20	3.54	3.16	2.66	3.34	2.04	0.36	0.11	0.01
2000	0.08	0.00	0.27	0.17	1.84	1.85	0.94	1.08	0.07	0.58	1.35	0.04
2001	0.68	0.14	0.09	1.25	0.63	0.42	0.02	0.00	0.00	0.00	0.02	0.04
2002	0.00	0.06	0.36	1.38	0.58	1.94	0.38	0.08	0.00	0.00	0.00	0.00
2003	0.04	0.01	0.09	0.96	0.58	0.21	0.00	0.00	0.00	0.00	0.00	0.10
2004	0.12	0.25	0.96	1.18	5.44	3.30	2.44	1.84	3.86	2.64	0.51	0.21
2005	0.59	0.44	0.50	3.96	3.15	5.97	2.08	1.52	5.41	3.52	1.62	0.40
2006	0.22	0.07	0.52	4.06	2.22	1.37	0.40	1.99	3.81	0.51	0.68	0.40
2007	0.01	0.05	1.49	0.64	2.34	1.38	1.09	5.38	3.49	3.94	0.02	0.26
2008	0.08	0.05	0.53	2.41	3.21	2.93	1.52	2.11	3.55	1.56	0.94	0.36
2009	0.11	0.47	2.38	0.70	0.52	3.60	1.56	3.97	0.49	3.34	0.17	0.43
2010	0.41	0.07	1.07	0.71	0.01	0.02	0.07	5.31	5.14	1.44	0.44	0.99
2011	0.10	0.07	1.18	3.23	6.40	4.04	6.33	4.63	0.51	0.77	0.02	0.26
2012	0.12	0.60	1.17	1.64	2.75	0.17	0.20	0.44	0.16	0.38	0.46	0.51
2013	0.20	0.42	1.05	1.02	2.43	2.33	2.11	0.99	1.84	1.79	0.50	0.35
2014	0.15	0.25	0.41	4.20	7.42	6.12	2.23	2.48	0.15	0.47	0.64	0.45
2015	0.04	0.14	0.29	0.93	0.92	0.47	0.17	0.05	0.04	3.34	2.22	0.53
2016	0.07	0.08	0.80	1.69	0.26	0.00	0.00	M	M	M	M	M
2017	M	M	M	M	M	M	0.00	M	M	M	M	M
2018	M	M	M	M	M	M	M	M	M	M	M	M
2019	M	M	M	M	M	M	M	M	M	M	M	M
2020	M	M	1.76	0.81	1.81	2.60	4.11	3.63	0.99	1.42	1.12	0.12
2021	0.16	0.17	1.78	2.44	2.05	0.66	0.67	2.44	0.93	0.52	0.02	0.35
2022	0.05	M	0.85	4.11	5.11	1.72	1.96	1.17	1.19	0.79	3.51	0.81
2023	0.49	1.30	1.99	4.24	1.72	1.82	2.95	3.07	2.47	3.29	0.05	3.13
2024	0.02	0.57	0.80	5.21	0.48	M	M	M	M	M	M	M
NCEI Climatology	0.69	1.06	1.43	2.57	4.23	4.41	4.33	4.50	3.39	2.51	1.52	1.14

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	M	M	M	M	M	M	M	M	M	M	0.0
1999	7.6	7.6	8.1	9.1	9.1	7.4	6.0	5.8	7.0	7.8	7.5	7.4
2000	6.8	7.2	7.4	9.0	8.1	7.7	5.7	5.5	7.0	6.3	7.8	7.4
2001	7.0	7.6	6.8	9.0	8.3	6.9	5.9	5.4	5.2	8.5	7.5	8.4
2002	7.3	9.3	8.5	9.5	8.7	7.6	5.6	5.7	5.6	6.6	7.0	7.7
2003	8.3	7.9	8.1	8.5	7.1	5.5	5.7	4.7	7.1	6.8	8.7	7.9
2004	8.0	6.6	8.5	8.4	8.1	7.0	4.7	5.5	6.5	7.1	6.0	8.9
2005	7.0	6.7	7.5	7.8	8.2	6.0	5.9	5.1	6.0	5.8	8.4	5.8
2006	7.7	7.2	6.9	8.3	8.1	5.7	5.1	5.2	6.1	8.0	6.4	7.2
2007	7.6	8.3	8.4	9.0	9.1	7.2	6.1	6.0	7.7	8.0	8.8	6.7
2008	6.5	6.6	7.1	9.1	8.6	7.8	6.4	5.9	6.5	7.3	8.1	8.1
2009	6.8	8.2	7.6	8.3	8.1	5.9	5.7	5.0	3.8	6.9	5.4	7.4
2010	6.1	5.6	6.5	7.0	6.3	5.4	5.0	5.5	6.3	6.3	8.4	7.4
2011	6.5	8.3	7.3	9.1	8.5	7.4	4.4	4.1	5.4	6.7	6.8	6.7
2012	7.7	6.8	7.4	7.9	6.9	5.2	4.2	3.9	5.3	6.9	6.9	5.7
2013	7.3	6.5	6.9	8.5	7.6	5.6	4.8	3.3	4.7	6.1	7.1	5.7
2014	8.0	7.2	7.2	9.3	5.8	4.8	5.1	3.6	5.1	6.7	8.1	6.7
2015	7.3	8.0	7.3	8.6	6.7	4.8	4.7	4.7	4.9	6.3	7.5	7.0
2016	6.2	7.7	6.9	8.8	5.4	5.9	5.1	3.5	5.4	5.7	5.6	8.3
2017	6.3	5.8	8.1	7.3	7.0	5.6	4.0	4.3	4.8	6.8	6.9	6.5
2018	1.3	2.8	6.8	7.0	4.8	5.4	3.4	2.5	3.9	5.5	4.8	3.9
2019	3.6	5.0	1.9	3.6	2.9	1.3	0.8	1.0	1.7	4.1	4.5	2.8
2020	3.6	3.6	6.6	7.1	6.2	5.3	3.2	3.4	4.2	6.0	6.1	5.5
2021	5.1	5.3	7.0	7.3	4.9	3.7	2.7	3.7	3.9	4.7	5.9	6.0
2022	6.8	7.8	7.6	9.6	6.3	5.3	4.2	3.6	5.2	5.4	7.0	7.1
2023	5.6	6.2	7.4	8.5	6.0	4.7	3.9	4.4	4.2	6.1	6.0	5.2
2024	5.7	6.0	7.8	8.6	6.5	M	M	M	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
1998	M	M	M	M	M	M	M	M	M	M	M	25.00
1999	17.29	33.00	41.26	54.77	68.32	74.87	84.68	78.58	69.77	59.42	50.63	33.16
2000	23.88	34.49	50.52	56.17	71.74	75.97	81.97	82.90	74.37	62.97	39.38	14.23
2001	27.65	19.55	34.03	55.83	69.26	78.42	84.41	82.85	70.16	57.68	53.30	33.07
2002	30.31	35.35	29.01	53.68	63.64	80.09	84.96	79.52	74.44	48.52	40.74	34.65
2003	26.11	22.72	38.24	56.54	67.35	77.11	81.99	84.98	73.14	61.33	37.30	29.92
2004	17.89	27.16	42.10	59.48	63.35	72.14	76.65	71.89	73.58	56.45	42.98	28.69
2005	21.37	32.39	39.14	59.30	62.54	78.92	82.23	75.95	69.80	55.23	38.24	20.97
2006	31.13	26.09	38.56	60.50	68.23	77.84	85.94	78.80	65.96	52.85	43.28	33.39
2007	25.32	20.54	43.38	54.62	72.76	79.70	83.33	77.46	73.10	60.28	40.58	22.42
2008	20.50	22.63	34.21	50.96	63.94	72.86	81.70	79.96	70.10	57.78	40.42	22.34
2009	16.59	27.82	38.40	55.62	70.51	74.41	77.14	79.72	77.49	47.57	49.35	21.84
2010	18.46	25.84	47.51	63.94	68.72	74.76	82.28	82.19	66.61	61.55	40.03	20.38
2011	16.19	24.41	34.17	52.64	64.21	75.43	83.99	78.26	69.31	62.03	44.40	33.59
2012	29.60	33.17	54.35	57.94	70.90	79.59	85.45	78.22	71.87	54.63	42.59	27.28
2013	23.05	24.42	31.94	45.55	66.27	75.72	81.90	81.94	76.00	54.76	40.31	17.81
2014	17.61	16.96	32.90	50.13	67.19	77.15	78.86	79.73	70.66	58.04	31.64	29.11
2015	25.65	20.06	44.74	59.51	66.98	77.74	81.24	77.81	76.48	61.40	48.54	33.74
2016	23.53	31.63	48.17	56.08	70.32	78.81	80.72	79.72	72.43	59.67	50.84	26.09
2017	26.39	38.82	41.33	57.91	66.66	79.38	83.52	76.24	74.50	58.56	40.68	25.11
2018	24.45	24.40	39.16	46.45	78.25	79.42	82.01	80.53	71.41	51.61	33.40	30.83
2019	17.66	18.68	35.66	53.74	64.15	77.54	82.12	77.34	72.78	52.45	36.02	28.37
2020	25.45	28.69	43.22	54.90	67.37	82.65	84.51	80.86	69.67	50.99	46.75	33.14
2021	27.65	18.19	48.30	55.61	69.35	86.10	85.35	82.54	75.70	61.65	43.28	35.36
2022	20.24	22.07	38.50	47.06	69.57	81.26	82.46	80.30	70.44	61.22	40.78	23.46
2023	25.10	28.85	34.63	50.87	74.84	83.47	82.41	81.31	76.07	58.73	46.13	39.29
2024	25.17	40.40	45.22	57.35	69.59	M	M	M	M	M	M	M
NCEI Climatology	21.30	26.69	39.20	54.30	67.29	76.81	80.90	78.60	71.10	56.61	40.30	26.69

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	M	M	M	M	M	M	M	M	M	M	21.00
1999	1.45	17.71	20.65	35.40	48.90	56.10	63.32	58.10	48.37	35.77	28.90	14.90
2000	3.19	16.38	29.58	35.70	49.68	54.47	62.23	60.77	48.37	41.77	27.75	-0.97
2001	9.97	-1.59	18.55	36.51	49.41	57.86	63.39	60.67	49.09	37.15	34.00	17.82
2002	14.84	16.47	11.55	33.48	42.10	60.69	66.33	60.46	54.80	33.10	24.10	17.18
2003	7.99	0.72	18.79	35.04	44.94	55.57	62.06	60.46	48.91	38.66	24.05	17.12
2004	2.21	12.32	25.67	34.94	43.44	52.64	57.84	51.80	54.14	39.32	28.10	13.59
2005	6.39	16.12	20.68	38.60	45.65	61.04	62.77	55.86	49.46	36.47	23.48	10.05
2006	18.76	6.29	25.03	39.86	48.78	56.24	62.72	58.65	47.48	33.92	25.46	20.68
2007	11.85	3.65	26.43	34.22	49.94	58.34	61.03	58.54	51.14	43.26	25.46	6.34
2008	3.14	4.50	18.41	32.90	43.50	57.20	59.70	56.74	49.88	38.56	26.28	0.84
2009	-4.12	9.52	19.81	35.38	44.67	54.59	56.70	60.45	55.72	35.22	30.77	8.82
2010	3.31	5.86	28.37	39.79	46.56	57.09	62.04	62.73	48.23	38.95	25.00	8.04
2011	0.42	4.96	15.77	34.45	46.55	56.94	65.78	60.28	48.47	42.09	26.81	18.16
2012	12.53	16.90	35.15	38.78	50.75	58.37	66.56	56.85	45.54	35.01	25.72	11.05
2013	5.64	5.97	13.80	30.26	46.25	57.72	62.00	59.70	54.22	39.09	22.64	0.65
2014	-4.23	-3.54	15.65	32.11	47.94	59.65	60.15	62.27	51.19	38.25	16.51	18.44
2015	11.02	2.17	24.10	36.47	47.40	58.56	61.91	59.26	56.67	41.20	32.66	23.66
2016	8.05	16.15	31.86	37.90	48.10	59.74	63.54	61.95	55.30	42.67	33.72	13.47
2017	12.36	20.94	23.55	38.43	46.54	57.19	61.50	57.18	54.06	40.55	24.32	10.90
2018	8.73	1.16	22.82	24.46	53.03	61.27	61.60	61.13	53.66	36.15	20.40	16.95
2019	7.93	6.86	18.31	34.37	42.81	57.62	63.56	58.67	54.99	37.01	24.13	11.55
2020	11.55	7.06	28.34	32.65	47.82	60.52	62.56	60.33	48.78	34.18	28.60	15.35
2021	14.64	0.93	29.37	36.58	47.28	61.51	61.50	61.22	52.42	44.94	30.20	22.64
2022	-2.41	0.47	22.19	32.00	49.19	59.78	63.01	61.25	51.61	38.35	25.85	10.04
2023	11.19	6.64	16.29	33.11	50.67	60.50	59.24	61.02	56.78	41.65	27.42	25.99
2024	14.97	21.59	24.90	38.03	40.73	M	M	M	M	M	M	M
NCEI Climatology	2.70	7.62	20.89	34.60	46.60	56.80	61.19	58.70	50.50	37.40	24.40	10.90

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1998	M	M	M	M	M	M	M	M	M	M	M	23.00
1999	9.37	25.36	30.95	45.08	58.61	65.48	74.00	68.34	59.07	47.60	39.77	24.03
2000	13.54	25.43	40.05	45.93	60.71	65.22	72.10	71.84	61.37	52.37	33.56	6.63
2001	18.81	8.98	26.29	46.17	59.33	68.14	73.90	71.76	59.62	47.41	43.65	25.45
2002	22.57	25.91	20.28	43.58	52.87	70.39	75.65	69.99	64.62	40.81	32.42	25.91
2003	17.05	11.72	28.51	45.79	56.14	66.34	72.03	72.72	61.03	50.00	30.67	23.52
2004	10.05	19.74	33.89	47.21	53.40	62.39	67.25	61.85	63.86	47.88	35.54	21.14
2005	13.88	24.25	29.91	48.95	54.09	69.98	72.50	65.91	59.63	45.85	30.86	15.51
2006	24.95	16.19	31.80	50.18	58.51	67.04	74.33	68.73	56.72	43.38	34.37	27.04
2007	18.59	12.09	34.90	44.42	61.35	69.02	72.18	68.00	62.12	51.77	33.02	14.38
2008	11.82	13.57	26.31	41.93	53.72	65.03	70.70	68.35	59.99	48.17	33.35	11.59
2009	6.24	18.67	29.11	45.50	57.59	64.50	66.92	70.09	66.61	41.39	40.06	15.33
2010	10.89	15.85	37.94	51.86	57.64	65.93	72.16	72.46	57.42	50.25	32.52	14.21
2011	8.30	14.69	24.97	43.54	55.38	66.18	74.88	69.27	58.89	52.06	35.61	25.87
2012	21.07	25.03	44.75	48.36	60.83	68.98	76.00	67.53	58.71	44.82	34.15	19.16
2013	14.34	15.20	22.87	37.90	56.26	66.72	71.95	70.82	65.11	46.92	31.47	9.23
2014	6.69	6.71	24.28	41.12	57.57	68.40	69.50	71.00	60.93	48.14	24.08	23.78
2015	18.33	11.12	34.42	47.99	57.19	68.15	71.58	68.53	66.57	51.30	40.60	28.70
2016	15.79	23.89	40.02	46.99	59.21	69.28	72.13	70.84	63.87	51.17	42.28	19.78
2017	19.38	29.88	32.44	48.17	56.60	68.28	72.51	66.71	64.28	49.55	32.50	18.00
2018	16.59	12.78	30.99	35.45	65.64	70.35	71.80	70.83	62.54	43.88	26.90	23.89
2019	12.79	12.77	26.98	44.05	53.48	67.58	72.84	68.01	63.89	44.73	30.08	19.96
2020	18.50	17.88	35.78	43.77	57.59	71.58	73.54	70.60	59.23	42.59	37.67	24.25
2021	21.14	9.56	38.84	46.10	58.32	73.81	73.43	71.88	64.06	53.29	36.74	29.00
2022	8.92	11.27	30.35	39.53	59.38	70.52	72.73	70.78	61.02	49.78	33.32	16.75
2023	18.15	17.74	25.46	41.99	62.75	71.98	70.82	71.16	66.42	50.19	36.77	32.64
2024	20.07	30.99	35.06	47.69	55.16	M	M	M	M	M	M	M
NCEI Climatology	12.00	17.16	30.05	44.45	56.95	66.80	71.05	68.65	60.80	47.00	32.35	18.80

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
1998	M	M	M	M	M	M	M	M	M	M	M	74.8%
1999	76.5%	75.1%	68.3%	67.5%	70.5%	71.9%	72.8%	75.6%	70.0%	61.0%	64.6%	70.2%
2000	69.0%	80.6%	70.7%	63.5%	67.4%	73.1%	77.9%	78.2%	66.1%	71.1%	85.8%	76.7%
2001	84.2%	78.7%	79.4%	71.2%	65.6%	70.9%	69.5%	74.8%	77.4%	68.4%	78.8%	81.7%
2002	81.2%	77.9%	73.2%	74.3%	63.2%	74.5%	76.5%	78.3%	74.8%	76.7%	70.0%	70.8%
2003	62.9%	71.5%	70.9%	60.8%	64.5%	69.0%	73.5%	72.5%	67.8%	67.6%	76.5%	82.8%
2004	74.9%	81.0%	80.4%	58.3%	68.9%	68.3%	76.0%	78.0%	76.1%	77.1%	77.8%	79.7%
2005	78.6%	80.3%	70.8%	64.6%	71.1%	71.9%	71.9%	81.3%	88.3%	89.9%	92.2%	98.2%
2006	91.8%	71.4%	77.3%	60.9%	67.6%	64.7%	65.1%	73.6%	76.9%	69.3%	75.0%	79.1%
2007	76.3%	71.1%	75.2%	58.5%	61.2%	63.9%	65.4%	74.6%	70.2%	73.6%	68.2%	83.8%
2008	77.0%	75.7%	74.1%	71.0%	60.4%	68.1%	66.7%	67.2%	74.7%	70.6%	77.2%	76.2%
2009	73.6%	73.6%	74.1%	58.2%	53.4%	67.8%	67.8%	67.9%	71.3%	84.6%	80.0%	82.2%
2010	82.7%	76.1%	74.0%	56.6%	66.8%	77.5%	76.6%	79.3%	79.8%	71.8%	77.6%	84.3%
2011	82.8%	79.4%	77.3%	72.3%	68.9%	74.6%	79.2%	80.7%	76.2%	68.6%	72.2%	78.6%
2012	80.8%	79.2%	78.4%	63.1%	68.1%	68.3%	76.8%	76.0%	61.2%	71.7%	78.2%	86.5%
2013	80.1%	82.2%	76.5%	74.9%	71.5%	76.5%	72.6%	75.4%	77.1%	79.6%	77.4%	82.6%
2014	75.5%	75.3%	74.0%	72.7%	69.0%	76.3%	72.4%	80.4%	79.2%	73.8%	78.8%	87.2%
2015	81.0%	72.2%	68.4%	58.6%	72.9%	73.4%	76.4%	80.6%	77.9%	74.5%	79.3%	89.0%
2016	84.1%	78.3%	76.7%	66.8%	64.1%	71.8%	77.9%	82.2%	81.0%	79.2%	81.9%	81.6%
2017	83.6%	76.8%	70.4%	71.3%	68.1%	66.7%	74.2%	80.7%	79.5%	75.1%	78.3%	79.0%
2018	77.5%	74.5%	72.9%	69.8%	62.4%	76.2%	77.5%	82.2%	78.9%	79.0%	81.7%	86.1%
2019	76.5%	81.8%	78.4%	73.2%	70.9%	70.6%	79.0%	78.7%	84.6%	76.3%	80.5%	86.0%
2020	84.5%	75.4%	77.0%	62.1%	63.1%	64.8%	76.1%	78.8%	77.4%	71.7%	76.9%	82.9%
2021	84.8%	75.6%	71.8%	67.3%	64.0%	59.0%	70.9%	73.0%	72.4%	77.0%	58.8%	71.3%
2022	66.6%	63.2%	61.9%	64.2%	56.2%	50.6%	64.5%	65.7%	67.7%	62.0%	73.2%	76.3%
2023	82.1%	73.1%	72.5%	66.9%	53.4%	60.1%	64.8%	70.7%	71.9%	72.0%	67.0%	79.1%
2024	78.6%	72.5%	55.8%	60.3%	54.8%	M	M	M	M	M	M	M