ST PAUL, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(217377) ST PAUL
From Year=1956 To Year=2006
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 3 41 246 585 836 1017 948 646 321 50 2 4695
40 S 0 3 44 290 875 1711 2728 3676 4323 4643 4693 4695 4695
45 M 0 0 18 149 434 686 862 793 497 202 21 1 3663
45 S 0 0 19 168 601 1287 2149 2942 3440 3642 3662 3663 3663
50 M 0 0 7 81 294 536 707 638 355 113 7 0 2739
50 S 0 0 7 88 383 919 1626 2264 2619 2732 2738 2739 2739
55 M 0 0 2 39 177 389 552 483 228 54 1 0 1926
55 S 0 0 2 41 218 607 1159 1643 1870 1925 1926 1926 1926
60 M 0 0 0 16 93 251 398 331 127 21 0 0 1237
60 S 0 0 0 17 110 360 758 1089 1216 1237 1237 1237 1237
Corn Growing Degree Days
50 M 0 1 25 148 350 538 688 628 387 177 24 1 2968
50 S 0 2 27 175 525 1063 1750 2378 2766 2942 2966 2968 2968
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