ANNAPOLIS POLICE BRKS, MARYLAND

Period of Record General Climate Summary - Growing Degree Days

From Year=1951 To Year=2005
Station:(180193) ANNAPOLIS POLICE BRKS
Averages Daily Extremes
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 45 57 191 465 776 1000 1172 1124 905 558 256 80 6629
40 S 45 102 293 759 1535 2534 3706 4830 5735 6293 6549 6629 6629
45 M 17 23 102 324 621 850 1017 969 755 405 149 34 5266
45 S 17 40 142 466 1087 1937 2954 3923 4678 5083 5232 5266 5266
50 M 6 8 47 199 466 700 862 814 605 263 72 13 4054
50 S 6 14 61 260 726 1426 2288 3102 3707 3970 4042 4054 4054
55 M 1 2 18 106 318 550 707 659 456 147 27 4 2995
55 S 1 4 22 128 446 995 1702 2361 2817 2964 2990 2995 2995
60 M 0 0 6 48 188 401 552 504 312 68 8 1 2088
60 S 0 1 7 54 243 643 1195 1699 2011 2079 2086 2088 2088
Corn Growing Degree Days
50 M 26 33 110 268 486 674 810 780 600 325 136 41 4288
50 S 26 59 169 437 923 1597 2406 3186 3786 4111 4247 4288 4288
Derived form the 1951-2005 Data
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 May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster