PORT WASHINGTON, WISCONSIN

Period of Record General Climate Summary - Growing Degree Days

Station:(476764) PORT WASHINGTON
From Year=1893 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	1	2	34	146	394	683	898	876	641	322	72	6	4077
40 S	1	4	37	184	578	1261	2160	3035	3676	3999	4071	4077	4077
45 M	0	0	14	70	253	534	743	721	492	196	28	1	3053
45 S	0	0	15	85	338	871	1615	2336	2828	3023	3051	3053	3053
50 M	0	0	5	29	140	386	588	566	347	100	8	0	2171
50 S	0	0	5	35	175	561	1149	1715	2062	2162	2170	2171	2171
55 M	0	0	1	11	66	249	434	411	215	42	2	0	1430
55 S	0	0	1	12	78	327	760	1171	1386	1428	1430	1430	1430
60 M	0	0	0	3	26	137	283	260	111	13	0	0	833
60 S	0	0	0	4	29	166	449	709	820	832	833	833	833

Corn Growing Degree Days
50 M	1	1	22	75	200	397	579	561	370	157	30	2	2395
50 S	1	2	23	98	298	695	1273	1835	2205	2362	2393	2395	2395

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu