PERRIS 1 WSW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046818) PERRIS 1 WSW
From Year=1951 To Year=1957
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 299 341 437 556 736 864 1145 1124 1061 820 526 359 8267
40 S 299 640 1077 1633 2369 3233 4378 5502 6563 7383 7909 8267 8267
45 M 162 207 288 407 581 714 990 969 911 665 377 211 6480
45 S 162 369 657 1063 1644 2358 3347 4317 5228 5892 6269 6480 6480
50 M 66 103 158 262 426 564 835 814 761 510 240 94 4833
50 S 66 169 327 590 1016 1580 2414 3229 3990 4499 4739 4833 4833
55 M 18 39 65 136 274 414 680 659 611 355 123 28 3400
55 S 18 57 122 258 531 945 1625 2284 2895 3250 3372 3400 3400
60 M 3 10 18 46 140 266 525 504 462 211 39 3 2226
60 S 3 13 31 76 216 482 1007 1511 1972 2184 2223 2226 2226
Corn Growing Degree Days
50 M 205 242 301 356 458 529 672 660 621 524 360 254 5181
50 S 205 447 748 1104 1562 2091 2763 3422 4043 4567 4927 5181 5181
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