PETERSBURG 2 N, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(327027) PETERSBURG
From Year=1930 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 0 0 10 119 409 672 855 807 465 168 12 0 3517
40 S 0 0 10 129 538 1210 2065 2872 3337 3505 3517 3517 3517
45 M 0 0 3 62 278 523 700 652 327 90 3 0 2638
45 S 0 0 3 65 343 866 1566 2218 2545 2635 2638 2638 2638
50 M 0 0 1 29 169 377 545 497 207 41 1 0 1867
50 S 0 0 1 30 199 576 1121 1618 1825 1866 1867 1867 1867
55 M 0 0 0 11 89 240 391 347 114 16 0 0 1208
55 S 0 0 0 11 101 341 732 1079 1192 1208 1208 1208 1208
60 M 0 0 0 4 38 128 244 209 54 4 0 0 681
60 S 0 0 0 4 42 170 414 624 678 681 681 681 681
Corn Growing Degree Days
50 M 0 0 8 85 252 405 545 508 284 117 11 0 2215
50 S 0 0 8 93 345 750 1295 1803 2086 2204 2215 2215 2215
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