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	0.42	2.44	1.80	4.18	1.93
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	0.01	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	5.8	6.7	6.7	6.4	6.8
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	12.1
2005	5.8	5.8	5.6	7.9	6.1	6.6	5.8	M	M	7.7	8.3	7.1
2006	6.4	M	M	M	M	M	M	M	M	M	M	M
2007	4.2	7.0	7.4	6.1	7.5	6.0	5.8	5.8	7.1	7.6	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	72.30	68.39	44.69	30.52	25.07
2003	M	M	M	29.50	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	58.82	65.99	60.04	68.40	45.08	39.62	36.70
2005	13.30	23.83	30.03	49.31	60.86	76.68	79.16	M	55.20	52.98	36.42	21.42
2006	25.27	5.60	25.43	39.47	54.25	70.55	65.66	66.43	56.15	M	29.67	30.17
2007	2.23	14.04	31.93	45.16	64.09	71.29	72.60	71.35	66.18	54.31	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	54.26	50.59	32.19	19.03	10.48
2003	M	M	M	29.50	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	58.82	64.81	57.54	67.55	45.08	39.62	19.40
2005	-9.14	3.55	4.78	30.95	41.84	57.19	58.20	M	53.40	40.93	22.99	6.02
2006	9.32	4.28	24.27	38.83	54.25	70.55	65.54	66.43	53.45	M	29.67	30.17
2007	-10.57	-6.23	12.10	28.21	42.68	53.18	55.65	54.84	49.08	42.69	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	63.28	59.49	38.44	24.77	17.77
2003	M	M	M	29.50	M	M	M	M	M	M	M	M
2004	M	M	M	M	M	58.82	65.40	58.79	67.97	45.08	39.62	28.05
2005	2.08	13.69	17.40	40.13	51.35	66.93	68.68	M	54.30	46.95	29.70	13.72
2006	17.29	4.94	24.85	39.15	54.25	70.55	65.60	66.43	54.80	M	29.67	30.17
2007	-4.17	3.90	22.01	36.69	53.38	62.24	64.12	63.09	57.63	48.50	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	67.5%	73.6%	80.5%	86.6%	81.1%
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	81.6%
2005	74.9%	73.1%	67.0%	62.8%	64.7%	70.6%	64.7%	M	M	83.6%	84.7%	80.6%
2006	84.8%	M	M	M	M	M	M	M	M	M	M	M
2007	73.1%	70.3%	68.0%	73.1%	55.2%	71.1%	72.4%	71.4%	72.0%	81.1%	M	M