JOHN DAY DAM, WASHINGTON

Monthly Total Growing Degree Days

(454035)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197208
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1958 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 45.50 i 0.00
1959 60.28 d 50.50 215.00 421.50 568.50 820.00 1118.00 1023.00 717.00 472.75 e 138.75 b 31.00 5636.28
1960 0.00 65.50 228.00 412.00 548.00 873.00 1217.00 986.50 813.21 b 544.00 167.31 d 10.50 5865.02
1961 31.00 b 148.00 235.50 352.00 586.00 1010.00 c 1157.50 1256.00 716.00 428.00 44.50 46.00 6010.50
1962 58.38 a 63.00 b 132.50 469.50 476.50 811.00 1064.00 988.50 822.86 b 470.00 213.50 54.00 5623.74
1963 21.50 95.00 209.50 301.00 639.00 810.50 956.50 1075.00 928.00 561.00 215.00 5.17 a 5817.17
1964 49.50 116.50 194.00 360.00 568.00 768.00 1030.50 954.50 751.50 496.00 98.00 37.50 5424.00
1965 48.50 130.00 212.50 484.00 627.75 a 820.00 1104.63 a 1093.00 754.00 615.50 245.50 49.50 6184.88
1966 29.00 81.00 218.50 476.50 689.50 778.00 1025.50 1059.50 889.50 524.00 229.50 88.00 6088.50
1967 144.50 163.00 216.00 319.50 696.00 929.00 1154.50 1279.00 1010.00 531.50 190.00 106.50 6739.50
1968 53.00 137.00 322.00 372.50 0.00 z 843.10 a 1146.00 990.00 841.50 443.50 187.00 52.00 5387.60
1969 1.50 2.00 214.50 390.00 a 746.50 958.45 a 1027.77 e 1019.38 a 857.00 445.50 240.50 0.00 z 5903.10
1970 13.50 108.00 227.00 0.00 z 663.50 922.50 1133.50 1102.22 d 696.00 454.00 0.00 z 0.00 z 5320.22
1971 144.00 106.00 129.00 361.50 638.71 b 734.00 1131.50 1197.00 700.00 462.00 182.00 68.50 5854.21
1972 77.50 96.00 256.50 300.00 700.50 812.00 1106.50 1148.00 0.00 z 0.00 z 0.00 z 0.00 z 4497.00
Period of Record Statistics
MEAN 52.30 97.25 215.04 386.15 626.80 849.25 1098.10 1083.69 807.43 495.98 179.30 49.88 5924.38
S.D. 45.09 42.81 46.90 63.49 74.97 78.99 69.07 102.92 96.90 55.47 60.18 30.17 366.72
SKEW 1.03 -0.53 0.08 0.23 -0.33 0.60 -0.40 0.66 0.60 0.73 -1.01 0.32 0.92
MAX 144.50 163.00 322.00 484.00 746.50 1010.00 1217.00 1279.00 1010.00 615.50 245.50 106.50 6739.50
MIN 0.00 2.00 129.00 300.00 476.50 734.00 956.50 954.50 696.00 428.00 44.50 5.17 5424.00
NO YRS 14 14 14 13 13 14 14 14 13 13 12 11 10