MIDWEST CLIMATE: CLIMATE SUMMARIES

Growing Season Summary for Station USW00014839 - MILWAUKEE MITCHELL AP, WI

Element	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	ANN
GDD Base 40	3	7	57	203	488	786	986	953	693	357	98	11	4639
GDD Base 45	1	2	27	114	340	636	831	798	544	227	45	3	3568
GDD Base 50	0	0	12	58	214	487	676	643	397	126	16	1	2631
GDD Base 60	0	0	2	12	60	219	366	335	148	23	1	0	1165
MGDD* Base 50	1	3	32	105	259	487	662	635	410	170	40	4	2806

*Modified Growing Degree Days: Base 50 Ceiling 86.

Growing Season Summary - Derived from 1981-2010 Averages

	DATE OF LAST SPRING OCCURRENCE						DATE OF FIRST FALL OCCURANCE
Base Temp °F	Median	Early	90%	10%	Late	.	Median	Early	90%	10%	Late
36	05/04	04/11	05/21	04/21	06/04	.	10/12	09/19	09/29	10/25	04/01
32	04/22	04/04	05/07	04/08	05/27	.	10/23	09/20	10/09	11/06	04/01
28	04/10	03/09	04/24	03/29	05/10	.	11/02	09/23	10/19	11/17	04/02
24	04/01	03/05	04/15	03/17	05/10	.	11/13	10/18	10/30	11/27	12/09
20	03/21	02/21	04/05	03/07	04/13	.	11/24	10/24	11/07	12/07	12/24
16	03/12	02/14	03/28	02/26	04/07	.	12/01	11/02	11/16	12/18	11/25

 

Length of Growing Season (Days) - Derived from 1981-2010 Normals
*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding

Base Temp °F	Median	Shortest	10%	90%	Longest
36	158	118	138	178	198
32	182	125	161	202	223
28	206	149	186	225	248
24	226	168	206	246	263
20	246	209	226	267	278
16	158	168	243	285	263

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