CRESCENT CITY 1 N, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042147) CRESCENT CITY 1 N
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 219 231 276 322 420 496 580 592 548 468 317 234 4701
40 S 219 450 726 1048 1467 1963 2543 3135 3683 4151 4468 4701 4701
45 M 95 108 135 176 265 346 425 437 398 313 175 103 2975
45 S 95 203 338 514 778 1124 1549 1986 2384 2697 2872 2975 2975
50 M 23 30 41 61 120 197 270 282 249 166 64 26 1528
50 S 23 53 94 154 275 472 741 1023 1272 1438 1502 1528 1528
55 M 2 4 6 12 31 68 120 132 111 55 11 3 556
55 S 2 6 12 24 55 123 243 375 486 542 553 556 556
60 M 0 0 1 2 7 11 24 29 31 11 1 0 117
60 S 0 1 1 4 10 21 45 74 105 116 116 117 117
Corn Growing Degree Days
50 M 75 86 110 137 188 236 288 299 282 228 130 81 2141
50 S 75 161 271 408 596 832 1120 1420 1702 1929 2060 2141 2141
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