ROSALIA, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(457180) ROSALIA
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 6 14 67 203 418 587 837 822 544 259 48 8 3813
40 S 6 20 87 290 708 1295 2132 2954 3498 3757 3805 3813 3813
45 M 0 2 21 102 273 437 682 667 396 141 13 1 2736
45 S 0 3 23 125 398 836 1518 2185 2581 2722 2735 2736 2736
50 M 0 0 4 42 154 293 527 513 259 63 2 0 1856
50 S 0 0 4 46 200 493 1020 1533 1792 1855 1856 1856 1856
55 M 0 0 0 14 73 168 375 361 146 21 0 0 1158
55 S 0 0 0 14 87 255 630 991 1137 1158 1158 1158 1158
60 M 0 0 0 3 28 79 234 222 67 5 0 0 638
60 S 0 0 0 3 31 110 344 566 633 638 638 638 638
Corn Growing Degree Days
50 M 1 5 37 126 252 354 526 517 346 166 20 1 2351
50 S 1 6 43 169 421 775 1300 1818 2163 2330 2350 2351 2351
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