PELTON DAM, OREGON

Monthly Total Growing Degree Days

(356532)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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 862.50 g 313.50 o 487.06 e 147.60 e 74.50 709.16
1959 88.50 50.00 162.50 382.00 434.00 767.00 1031.50 887.50 639.50 419.00 116.50 28.00 5006.00
1960 9.00 68.00 235.00 354.50 462.50 808.00 1068.50 871.00 709.50 411.00 106.73 d 5.50 5109.23
1961 104.50 153.00 195.00 322.50 516.50 891.50 1020.50 1077.00 601.00 351.00 51.00 52.50 5336.00
1962 50.50 57.00 128.00 420.00 433.50 715.00 932.00 869.50 733.00 341.50 164.50 40.50 4885.00
1963 10.50 143.00 150.50 225.00 548.50 682.00 867.50 914.00 821.00 430.50 154.50 9.50 4956.50
1964 48.50 32.50 103.00 252.50 495.00 728.50 983.50 884.00 646.00 393.00 75.00 41.85 a 4683.35
1965 49.50 113.00 139.00 386.50 501.00 752.50 990.50 919.00 70.00 z 271.50 k 162.50 39.00 o 4013.50
1966 3.00 t 41.48 a 202.00 356.00 619.00 709.00 922.50 937.50 763.50 428.50 140.50 56.00 5175.98
1967 90.50 107.00 137.50 165.00 565.50 794.00 1016.00 1091.00 844.50 447.50 138.00 57.00 5453.50
1968 77.00 148.50 253.50 285.50 543.00 765.00 1040.00 880.50 717.50 353.50 112.00 46.50 5222.50
1969 17.50 4.00 158.00 290.00 663.00 828.00 927.00 904.50 718.50 288.00 158.00 30.50 4987.00
1970 76.00 56.00 165.50 177.00 578.50 849.00 1004.50 971.50 565.50 321.50 101.00 45.00 4911.00
1971 103.00 69.50 83.00 268.00 587.50 667.50 1024.00 1084.50 607.00 337.00 97.00 35.50 4963.50
1972 59.50 100.00 258.50 223.50 639.00 813.00 1007.50 992.00 593.50 358.50 134.00 81.00 5260.00
1973 43.50 69.00 125.00 338.00 636.50 779.50 1027.00 907.27 a 699.00 401.50 103.50 93.00 5222.77
1974 75.00 84.50 188.50 316.00 484.50 885.50 982.91 b 995.00 774.50 398.50 150.00 53.50 5388.41
1975 81.00 46.00 69.50 169.50 526.00 694.50 1056.00 856.50 744.00 411.50 146.00 109.00 4909.50
1976 61.00 71.50 111.50 261.00 586.00 647.00 1002.00 897.00 810.50 419.00 197.07 a 8.00 5071.57
1977 13.00 102.00 129.50 440.00 433.00 853.50 930.00 1038.00 625.50 401.00 117.00 99.00 5181.50
1978 16.50 106.00 279.50 301.00 459.00 774.50 962.00 908.50 610.00 439.50 68.00 25.50 4950.00
1979 0.00 65.00 231.00 313.50 610.00 787.50 1004.50 934.00 784.00 329.50 o 31.50 g 92.50 4822.00
1980 27.26 b 66.00 0.00 z 378.50 539.50 647.00 999.50 0.00 z 708.50 401.00 167.00 99.50 m 3934.26
1981 36.50 106.50 200.00 328.50 542.00 702.50 924.00 1044.50 481.00 i 374.58 a 146.50 52.50 4458.08
1982 37.00 103.00 143.50 234.50 525.00 815.50 951.00 952.50 637.00 350.00 75.50 36.00 4860.50
1983 89.50 120.00 238.00 286.50 595.00 686.50 858.00 1006.00 320.00 n 429.00 190.50 7.50 4506.50
1984 34.00 86.00 237.50 247.50 527.50 680.00 1021.00 1004.00 658.00 288.50 78.00 10.00 4872.00
1985 1.00 48.50 130.50 410.50 575.00 801.00 1148.00 928.00 548.00 379.00 77.50 0.00 5047.00
1986 25.83 a 113.56 a 315.50 261.50 603.98 a 900.00 870.50 1082.00 561.00 427.00 131.00 12.50 5304.37
1987 25.00 64.62 b 219.50 492.50 683.00 898.45 a 921.22 a 973.00 788.50 489.00 139.50 70.27 a 5764.55
1988 14.97 b 123.25 a 177.00 432.00 581.00 770.17 a 1008.50 960.50 707.00 650.50 135.50 54.00 5614.39
1989 84.00 22.50 189.00 456.50 557.50 819.00 954.00 908.50 720.00 415.00 177.50 34.00 5337.50
1990 81.00 88.00 248.00 524.00 546.50 811.00 1102.50 1046.00 886.00 424.50 186.00 32.00 5975.50
1991 54.50 203.00 175.50 328.00 519.00 692.50 1078.50 1099.50 837.00 476.50 172.00 55.50 5691.50
1992 99.50 178.00 313.00 448.00 776.00 0.00 z 1040.00 1048.00 767.00 484.00 135.50 7.50 5296.50
1993 8.00 15.00 194.50 317.00 724.00 740.50 795.50 922.50 759.00 509.50 33.00 65.00 5083.50
1994 71.50 57.50 250.50 459.50 683.00 802.50 1101.00 989.50 846.00 419.50 88.50 103.50 5872.50
1995 60.50 199.50 181.50 310.50 608.00 741.00 1004.00 897.00 796.50 392.00 255.50 55.00 5501.00
1996 54.00 104.50 205.00 391.50 493.50 763.50 1057.00 1001.50 652.00 408.00 105.50 18.08 a 5254.08
1997 31.00 45.50 240.50 320.50 705.50 651.00 937.50 1066.00 780.00 396.00 154.50 19.50 5347.50
1998 77.50 112.50 239.00 353.00 537.00 793.00 1155.00 1096.50 0.00 z 414.50 188.00 107.50 5073.50
1999 81.00 117.00 155.50 307.00 508.00 757.50 1025.50 1096.50 736.00 462.50 245.50 89.00 5581.00
2000 17.00 j 71.50 174.00 473.50 620.00 858.00 1036.00 1023.00 793.00 456.00 78.50 19.50 5603.00
2001 11.50 49.50 245.00 291.21 a 740.50 747.00 1000.00 1099.50 867.00 450.00 166.03 a 38.00 5705.24
2002 61.00 102.50 134.00 368.00 515.50 780.50 1065.50 919.00 728.00 319.00 127.00 73.00 5193.00
2003 104.00 47.50 246.50 252.50 578.00 851.50 1130.00 1035.50 800.00 571.50 75.00 31.00 5723.00
2004 12.00 48.00 287.50 381.50 544.50 799.50 1064.00 1031.50 691.50 442.50 116.00 52.00 5470.50
2005 32.00 29.00 247.00 318.00 600.00 617.00 1017.00 1004.50 650.50 395.00 71.50 9.00 4990.50
2006 38.00 29.00 95.00 303.00 553.50 771.00 1085.00 934.50 695.00 339.50 137.50 33.00 5014.00
2007 18.00 41.50 237.00 255.00 578.50 745.00 1113.00 922.00 670.50 312.07 a 96.43 b 59.50 5048.50
2008 0.00 z 54.00 f 94.00 165.00 544.50 688.97 a 1025.00 979.00 703.00 0.00 z 179.50 32.50 4411.47
2009 41.00 9.00 82.00 261.00 564.00 782.50 1088.00 1012.00 797.00 269.00 92.50 19.50 5017.50
2010 49.50 45.00 155.00 233.50 430.50 644.00 988.50 938.50 704.50 403.50 131.50 26.87 a 4750.87
2011 62.50 51.85 a 118.50 179.50 401.00 648.62 a 868.00 1010.00 813.00 403.00 74.50 16.00 4646.47
2012 46.50 26.50 127.50 335.00 526.00 671.50 1025.00 1033.50 772.00 391.00 157.50 42.50 5154.50
2013 16.50 15.00 174.50 31.00 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 206.00
Period of Record Statistics
MEAN 49.24 78.28 184.75 321.32 562.00 759.81 1004.76 978.95 721.60 407.33 130.12 44.64 5211.78
S.D. 30.28 46.30 61.55 87.13 80.41 73.02 75.63 72.04 84.46 67.81 45.88 29.15 324.20
SKEW 0.17 0.76 0.12 0.22 0.44 0.01 -0.42 0.14 -0.18 0.79 0.34 0.58 0.51
MAX 104.50 203.00 315.50 524.00 776.00 900.00 1155.00 1099.50 886.00 650.50 255.50 109.00 5975.50
MIN 0.00 4.00 69.50 165.00 401.00 617.00 795.50 856.50 548.00 269.00 33.00 0.00 4646.47
NO YRS 52 54 54 54 54 53 54 53 50 52 54 53 44