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 () within the current 1991-2020 dataset.

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Precipitation Totals [inch]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	M	M	M	M	M	M	M	0.84	3.79	2.81	4.21	1.43
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	M	M	M	M
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	0.13	M	M	M	M	M	M	M	M	M	M

Average Wind Speed [MPH]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	M	M	M	M	M	M	M	5.6	6.4	6.4	6.8	7.4
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	M	M	M	M
2005	6.7	6.1	8.3	8.0	8.4	7.0	5.5	M	M	7.5	8.2	7.3
2006	4.8	M	M	M	M	M	M	M	M	M	M	M
2007	5.0	8.1	8.9	8.6	9.6	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
2002	M	M	M	M	M	M	M	75.72	70.71	48.13	36.10	27.22
2003	M	M	M	50.70	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	59.58	70.59	68.33	66.43	42.52	38.52	45.00
2005	18.28	28.27	32.78	51.11	58.63	76.47	78.90	M	43.00	55.64	41.61	25.07
2006	28.69	19.40	28.12	45.17	57.45	66.20	70.86	67.18	66.20	M	36.77	34.83
2007	9.21	19.39	33.99	47.44	59.19	M	M	M	M	M	M	M

Average Daily Low Temperature [F]

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	M	M	M	M	M	M	M	52.91	46.54	31.95	21.51	10.44
2003	M	M	M	50.70	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	59.58	68.19	63.68	65.45	42.52	38.52	40.30
2005	-4.84	4.93	12.79	32.16	40.84	53.59	55.10	M	41.50	40.91	25.53	8.15
2006	11.30	19.36	26.21	44.80	57.45	66.20	69.86	67.18	65.75	M	36.77	33.80
2007	-17.06	-2.65	14.09	31.46	35.10	M	M	M	M	M	M	M

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

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	M	M	M	M	M	M	M	64.31	58.62	40.04	28.80	18.83
2003	M	M	M	50.70	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	59.58	69.39	66.01	65.94	42.52	38.52	42.65
2005	6.72	16.60	22.78	41.63	49.73	65.03	67.00	M	42.25	48.28	33.57	16.61
2006	20.00	19.38	27.17	44.98	57.45	66.20	70.36	67.18	65.98	M	36.77	34.32
2007	-3.93	8.37	24.04	39.45	47.14	M	M	M	M	M	M	M

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
2002	M	M	M	M	M	M	M	78.6%	78.2%	81.8%	84.4%	77.2%
2003	M	M	M	M	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	M	M	M	M	M	M	M
2005	72.4%	72.0%	70.4%	72.6%	72.1%	77.6%	77.3%	M	M	84.8%	83.6%	84.3%
2006	84.6%	M	M	M	M	M	M	M	M	M	M	M
2007	72.5%	72.2%	67.6%	75.2%	51.8%	M	M	M	M	M	M	M