PROSSER 4 NE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456768) PROSSER 4 NE
From Year=1925 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 24 45 166 338 585 761 976 937 674 372 88 27 4993
40 S 24 69 234 573 1158 1919 2896 3832 4506 4878 4966 4993 4993
45 M 6 12 68 201 430 611 821 782 524 229 30 7 3721
45 S 6 17 85 286 716 1328 2149 2931 3455 3684 3714 3721 3721
50 M 1 2 20 97 282 461 666 627 376 114 7 1 2657
50 S 1 3 23 121 403 864 1531 2157 2534 2648 2655 2657 2657
55 M 0 0 4 37 158 314 512 472 238 44 1 0 1780
55 S 0 0 4 41 199 513 1025 1497 1735 1779 1780 1780 1780
60 M 0 0 0 10 73 184 359 320 124 12 0 0 1082
60 S 0 0 0 10 83 267 626 946 1070 1082 1082 1082 1082
Corn Growing Degree Days
50 M 11 26 112 226 369 477 608 586 429 236 45 11 3135
50 S 11 36 148 374 743 1220 1828 2414 2842 3079 3123 3135 3135
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