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 (USC00508915) 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
1991	M	M	M	M	M	M	M	M	M	M	M	0.00
1992	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1993	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1994	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1995	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1996	M	M	M	M	M	M	0.00	0.00	0.00	0.00	0.00	0.00
1997	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1998	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
1999	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2000	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2001	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2002	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2003	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2004	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2005	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2006	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2007	1.61	0.00	0.00	0.08	0.61	0.22	2.73	2.11	5.63	0.44	0.11	0.00
2008	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2009	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2010	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
2011	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	0.90	1.25	0.72	0.50	0.85	1.45	2.30	3.19	3.31	1.53	1.42	1.41

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	M	M	M	M	0.0
1992	0.0	0.0	0.0	0.1	0.0	0.9	3.5	3.1	5.9	7.7	9.0	7.4
1993	6.1	8.9	8.7	6.2	5.3	3.5	3.0	3.2	4.2	7.2	6.2	8.7
1994	11.2	12.2	7.5	4.8	3.3	2.5	3.0	2.7	4.2	5.7	5.8	8.7
1995	5.9	7.3	8.5	5.7	3.6	3.7	2.9	2.8	4.3	6.1	10.8	9.5
1996	M	M	M	M	M	M	2.0	5.5	4.4	8.7	7.1	9.3
1997	8.5	7.7	9.9	6.5	4.5	3.5	2.2	2.3	6.7	6.3	6.6	5.9
1998	7.0	4.3	3.9	2.9	3.0	2.6	2.7	3.7	3.6	5.1	3.9	5.0
1999	3.8	5.3	6.8	4.4	4.0	3.5	3.8	3.3	2.3	4.0	6.5	4.5
2000	4.2	3.3	M	5.2	4.5	2.8	3.2	2.2	5.2	6.8	5.6	8.1
2001	5.8	4.9	6.7	6.0	5.9	4.6	2.7	3.9	4.1	4.5	3.9	7.0
2002	3.5	5.3	7.4	4.4	4.8	2.4	2.8	3.0	1.6	3.3	4.7	2.8
2003	4.2	3.5	15.1	5.4	3.6	M	5.8	5.1	5.7	4.2	4.8	6.1
2004	8.9	4.8	7.5	5.9	3.7	3.9	3.3	4.4	4.9	4.7	4.8	5.9
2005	7.2	6.8	7.6	5.1	4.2	4.4	3.4	4.6	4.4	5.1	7.3	5.7
2006	4.3	4.5	6.7	5.8	6.5	4.0	3.8	3.4	3.9	5.2	9.3	6.1
2007	4.8	6.6	13.5	4.8	4.4	4.8	3.4	5.9	4.0	4.9	5.9	8.3
2008	5.0	10.6	6.3	5.0	4.3	4.2	4.2	3.5	3.7	4.5	5.6	3.4
2009	5.9	5.9	9.1	5.5	5.8	4.6	4.8	5.5	4.4	5.3	8.7	2.3
2010	12.3	4.9	7.1	6.1	6.3	4.7	3.6	2.7	12.0	5.0	7.9	9.0
2011	9.4	5.3	10.5	6.4	7.6	6.2	3.8	3.3	3.3	M	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	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
1991	M	M	M	M	M	M	M	M	M	M	M	M
1992	M	M	M	44.00	M	60.11	63.81	59.39	43.90	35.45	28.80	15.23
1993	16.52	28.21	35.19	50.82	59.74	62.13	64.84	62.97	51.60	41.39	25.00	25.87
1994	22.06	17.28	28.45	47.13	56.39	63.34	63.24	62.62	52.61	36.13	15.80	21.00
1995	17.06	24.14	24.35	48.23	56.77	62.37	62.74	56.27	54.13	42.58	26.30	19.81
1996	12.97	20.38	35.10	45.21	69.00	61.50	61.50	60.30	50.87	32.55	21.50	19.87
1997	15.55	37.47	30.52	46.47	57.48	64.61	65.90	63.16	56.68	35.16	30.00	20.93
1998	20.36	31.89	38.73	47.56	53.11	62.54	62.83	54.69	50.46	40.74	24.21	17.29
1999	11.48	13.57	32.14	43.11	54.67	61.50	61.72	60.20	50.26	37.26	26.55	17.54
2000	16.12	31.04	32.99	45.97	53.72	63.29	61.81	57.63	48.06	38.14	29.39	24.66
2001	28.83	29.24	33.60	44.97	51.79	62.01	58.34	60.81	52.94	32.79	24.26	13.99
2002	24.82	22.77	30.59	36.80	56.56	56.43	61.69	59.22	50.61	43.63	36.34	21.40
2003	24.08	30.67	31.27	46.82	52.05	57.93	61.70	58.32	50.05	44.76	20.06	20.55
2004	14.46	31.38	31.22	46.58	59.32	63.43	64.57	67.49	48.45	38.09	27.15	23.76
2005	20.14	26.01	37.85	49.14	58.26	62.94	62.34	60.42	52.39	39.79	20.48	27.72
2006	15.32	26.34	30.17	41.76	57.26	58.22	61.85	56.43	53.50	41.00	17.61	21.59
2007	20.45	27.02	24.97	51.87	59.87	67.47	65.19	67.00	57.03	42.94	34.40	23.19
2008	15.53	23.06	34.84	40.75	55.21	56.85	58.04	56.33	51.16	34.31	24.86	16.68
2009	15.95	22.30	30.29	44.21	57.91	59.81	64.47	59.33	54.12	44.02	22.39	18.78
2010	23.75	30.71	32.12	44.24	58.25	57.26	59.29	59.70	55.16	40.59	28.22	16.76
2011	20.91	22.55	32.23	44.30	57.44	58.52	60.34	57.43	53.00	50.00	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	22.69	29.63	36.40	49.61	61.60	67.09	68.51	65.60	57.29	43.80	29.11	24.20

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	M	M	M	M	M
1992	M	M	M	44.00	M	42.89	48.19	45.26	32.20	27.97	23.60	8.48
1993	9.39	18.43	19.96	28.77	36.29	42.57	49.13	47.90	40.67	33.06	18.47	19.90
1994	18.10	11.20	18.03	26.97	33.16	42.62	45.95	46.33	38.50	26.87	7.20	15.86
1995	12.06	16.36	11.94	32.17	35.97	43.57	48.97	46.97	44.17	33.00	20.63	17.10
1996	6.65	11.66	21.58	27.75	69.00	40.38	46.93	44.46	36.21	21.26	14.02	13.70
1997	9.87	25.87	18.16	29.43	35.13	43.94	51.16	47.64	40.31	22.90	21.63	14.61
1998	16.00	21.71	21.17	29.41	35.71	44.96	47.55	43.51	37.62	28.94	16.04	9.84
1999	4.66	1.39	17.92	27.48	35.85	41.50	48.55	46.55	39.19	29.11	18.68	12.18
2000	11.72	20.17	23.41	32.68	37.39	49.51	55.23	51.04	38.47	27.41	23.84	20.59
2001	25.09	19.04	21.20	26.67	34.04	45.99	49.41	48.63	36.84	23.47	17.32	8.53
2002	20.38	13.32	13.67	20.91	36.59	44.11	49.05	44.69	39.84	33.25	32.49	16.25
2003	18.92	24.31	18.70	26.43	38.62	53.01	53.79	48.25	38.20	34.75	14.36	15.83
2004	6.96	21.84	15.76	30.21	38.42	47.43	50.30	46.67	33.05	30.37	21.14	18.50
2005	13.68	15.45	24.17	29.99	35.68	44.75	49.12	47.25	40.30	27.08	12.70	23.14
2006	6.70	13.40	17.36	28.54	36.22	41.53	47.35	45.13	39.50	33.02	8.44	16.95
2007	6.42	9.04	3.97	26.80	34.61	41.00	48.06	45.71	38.67	26.74	21.93	11.48
2008	6.98	14.57	21.82	26.59	35.78	43.49	47.99	46.01	39.97	24.26	16.83	9.59
2009	9.83	11.12	18.91	27.21	37.10	42.83	50.33	47.43	40.23	36.13	14.59	14.74
2010	19.27	22.23	23.75	30.50	39.55	48.14	48.66	49.71	39.08	31.54	23.30	13.28
2011	16.21	9.82	19.46	29.36	34.04	44.36	48.78	45.65	36.32	35.60	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	8.80	12.35	16.39	25.70	33.10	42.00	47.11	44.80	36.59	26.90	15.30	10.71

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1991	M	M	M	M	M	M	M	M	M	M	M	M
1992	M	M	M	44.00	M	51.50	56.00	52.32	38.05	31.71	26.20	11.85
1993	12.95	23.32	27.58	39.80	48.02	52.35	56.98	55.44	46.13	37.23	21.73	22.89
1994	20.08	14.24	23.24	37.05	44.77	52.98	54.60	54.48	45.55	31.50	11.50	18.43
1995	14.56	20.25	18.15	40.20	46.37	52.97	55.85	51.62	49.15	37.79	23.47	18.45
1996	9.81	16.02	28.34	36.48	69.00	50.94	54.22	52.38	43.54	26.90	17.76	16.78
1997	12.71	31.67	24.34	37.95	46.31	54.27	58.53	55.40	48.50	29.03	25.82	17.77
1998	18.18	26.80	29.95	38.48	44.41	53.75	55.19	49.10	44.04	34.84	20.12	13.57
1999	8.07	7.48	25.03	35.30	45.26	51.50	55.14	53.38	44.72	33.19	22.61	14.86
2000	13.92	25.60	28.20	39.32	45.56	56.40	58.52	54.33	43.27	32.77	26.61	22.63
2001	26.96	24.14	27.40	35.82	42.91	54.00	53.87	54.72	44.89	28.13	20.79	11.26
2002	22.60	18.05	22.13	28.86	46.57	50.27	55.37	51.95	45.22	38.44	34.41	18.83
2003	21.50	27.49	24.99	36.62	45.34	55.47	57.74	53.28	44.13	39.76	17.21	18.19
2004	10.71	26.61	23.49	38.39	48.87	55.43	57.44	57.08	40.75	34.23	24.14	21.13
2005	16.91	20.73	31.01	39.56	46.97	53.84	55.73	53.84	46.35	33.43	16.59	25.43
2006	11.01	19.87	23.76	35.15	46.74	49.88	54.60	50.78	46.50	37.01	13.02	19.27
2007	13.44	18.03	14.47	39.33	47.24	54.23	56.63	56.35	47.85	34.84	28.17	17.34
2008	11.25	18.81	28.33	33.67	45.50	50.17	53.01	51.17	45.57	29.29	20.85	13.13
2009	12.89	16.71	24.60	35.71	47.50	51.32	57.40	53.38	47.17	40.07	18.49	16.76
2010	21.51	26.47	27.94	37.37	48.90	52.70	53.98	54.70	47.12	36.06	25.76	15.02
2011	18.56	16.19	25.85	36.83	45.74	51.44	54.56	51.54	44.66	42.80	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M
NCEI Climatology	15.75	20.99	26.40	37.65	47.35	54.55	57.81	55.20	46.94	35.35	22.20	17.45

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
1991	M	M	M	M	M	M	M	M	M	M	M	M
1992	M	M	M	55.4%	M	73.4%	73.1%	75.5%	63.5%	65.6%	71.1%	64.1%
1993	69.8%	70.7%	57.1%	49.3%	57.7%	66.7%	73.1%	72.5%	76.3%	70.6%	76.5%	73.2%
1994	69.6%	62.7%	69.3%	59.3%	61.6%	74.1%	72.9%	78.3%	69.9%	71.0%	72.4%	69.6%
1995	66.1%	64.4%	60.1%	54.0%	59.5%	67.2%	77.8%	78.9%	78.6%	64.6%	56.2%	54.6%
1996	M	M	M	M	M	M	77.6%	78.5%	71.7%	51.2%	59.7%	51.0%
1997	60.1%	67.8%	50.8%	53.2%	62.0%	68.0%	81.4%	84.2%	73.2%	63.5%	65.1%	69.4%
1998	48.4%	64.3%	61.7%	63.4%	67.6%	70.2%	81.1%	85.7%	82.4%	59.6%	70.8%	73.8%
1999	68.3%	54.2%	62.0%	68.5%	61.8%	65.1%	79.7%	85.2%	86.6%	84.6%	67.1%	79.1%
2000	78.8%	73.1%	M	54.8%	61.6%	72.1%	82.1%	76.1%	82.5%	73.8%	78.1%	74.9%
2001	80.5%	76.6%	74.7%	74.1%	67.7%	72.7%	83.6%	82.1%	77.4%	81.9%	75.7%	73.5%
2002	82.5%	75.7%	82.3%	74.1%	65.6%	74.8%	83.2%	88.2%	89.5%	87.8%	80.8%	91.8%
2003	78.4%	81.1%	61.7%	62.9%	71.7%	M	66.4%	86.8%	66.5%	75.0%	72.1%	73.0%
2004	60.1%	65.0%	61.0%	69.7%	73.2%	74.6%	77.7%	71.3%	80.6%	85.2%	81.2%	77.7%
2005	70.7%	69.6%	65.2%	58.5%	66.1%	69.3%	77.3%	79.4%	81.3%	72.1%	63.4%	77.6%
2006	65.6%	68.0%	60.2%	67.3%	62.0%	67.5%	76.7%	83.1%	79.7%	80.1%	52.9%	69.6%
2007	69.3%	71.8%	70.4%	63.6%	56.2%	65.2%	77.3%	79.8%	80.6%	77.8%	76.7%	69.4%
2008	69.5%	61.4%	67.3%	69.4%	59.5%	70.5%	81.7%	80.1%	80.7%	73.6%	69.6%	74.9%
2009	67.1%	67.8%	64.6%	62.6%	57.9%	69.8%	70.1%	74.4%	74.8%	69.7%	67.4%	71.9%
2010	64.1%	63.1%	53.0%	66.9%	54.2%	68.2%	77.9%	82.1%	60.0%	60.1%	71.0%	47.0%
2011	61.2%	62.8%	60.7%	54.3%	52.8%	56.5%	76.2%	81.2%	71.3%	M	M	M
2012	M	M	M	M	M	M	M	M	M	M	M	M
2013	M	M	M	M	M	M	M	M	M	M	M	M
2014	M	M	M	M	M	M	M	M	M	M	M	M
2015	M	M	M	M	M	M	M	M	M	M	M	M
2016	M	M	M	M	M	M	M	M	M	M	M	M
2017	M	M	M	M	M	M	M	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	M	M	M	M	M	M	M	M	M	M
2021	M	M	M	M	M	M	M	M	M	M	M	M
2022	M	M	M	M	M	M	M	M	M	M	M	M
2023	M	M	M	M	M	M	M	M	M	M	M	M