MC NARY DAM, WASHINGTON

Monthly Total Growing Degree Days

(455231)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200810
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
1954 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 295.00 f 228.00 21.00 249.00
1955 15.50 28.50 93.50 287.50 569.50 875.00 986.50 1074.00 818.50 488.50 119.50 35.00 5391.50
1956 33.50 20.00 190.00 489.50 730.00 778.50 1168.50 1062.00 791.50 449.00 81.50 85.00 5879.00
1957 0.50 58.00 182.00 452.00 791.00 898.50 1043.50 1004.00 868.00 399.00 106.00 102.00 5904.50
1958 88.00 193.00 173.00 377.00 813.50 968.00 1264.50 1243.50 776.00 489.00 215.50 51.50 6652.50
1959 71.00 71.00 221.50 423.50 564.50 846.00 1135.50 993.00 715.00 465.00 110.50 30.50 5647.00
1960 2.00 66.50 234.00 416.50 592.00 897.00 1239.00 990.50 787.50 468.00 152.50 8.00 5853.50
1961 51.00 158.50 261.50 392.50 625.50 980.00 1217.50 1244.50 698.50 393.50 50.50 53.50 6127.00
1962 31.00 60.50 130.00 454.66 a 503.00 795.50 1032.50 946.00 741.50 417.00 179.00 45.50 5336.16
1963 12.00 43.50 185.50 320.00 658.00 821.00 949.78 b 1048.00 837.32 b 527.00 204.50 1.50 5608.10
1964 44.50 59.00 143.00 360.50 588.50 809.50 1074.50 940.00 715.00 406.50 87.00 37.50 5265.50
1965 42.00 102.00 154.50 488.50 645.00 838.50 1114.50 1089.50 681.00 539.00 208.50 34.50 5937.50
1966 30.00 52.50 195.50 451.55 a 693.50 807.00 992.50 1091.00 870.50 454.00 174.50 89.50 5902.05
1967 129.50 112.00 188.50 289.00 690.00 951.50 1181.50 1257.00 931.50 495.50 138.50 69.50 6434.00
1968 41.50 131.00 279.00 360.50 686.50 881.00 1187.00 992.50 796.00 399.50 121.00 35.50 5911.00
1969 2.58 a 4.50 177.00 377.50 738.00 971.00 1078.50 1013.00 792.50 376.50 167.50 35.50 5734.08
1970 15.50 52.50 193.50 265.00 621.00 939.50 1160.50 1062.50 623.00 379.00 136.50 28.00 5476.50
1971 114.50 91.50 126.00 346.50 691.00 738.00 1124.50 1211.50 650.00 407.50 128.00 63.50 5692.50
1972 56.50 82.50 227.50 273.00 677.50 866.00 1071.50 1119.50 683.50 420.00 141.50 57.00 5676.00
1973 2.00 39.00 237.00 398.00 707.32 a 840.50 1128.50 1057.00 754.00 454.00 110.50 90.50 5818.32
1974 78.50 80.50 199.00 367.50 566.00 879.50 1027.65 a 1073.50 797.50 431.00 146.00 77.50 5724.15
1975 33.50 27.50 115.00 232.00 572.47 a 731.50 1071.50 936.00 772.00 431.00 104.00 90.00 5116.47
1976 30.00 54.00 128.00 317.00 627.00 719.50 1035.50 940.50 841.00 412.50 155.50 24.50 5285.00
1977 7.00 105.50 170.00 463.00 523.00 937.00 1012.50 1179.50 667.50 417.50 143.50 87.00 5713.00
1978 3.50 44.50 252.00 369.50 240.50 p 586.50 j 1075.00 1027.00 716.00 471.00 71.90 a 48.50 4078.90
1979 0.00 67.50 227.50 420.50 693.50 869.00 1109.50 1070.00 831.50 523.00 56.50 35.50 5904.00
1980 3.00 27.00 181.50 450.00 622.00 753.89 c 1035.00 720.00 i 283.50 q 397.00 142.24 a 90.23 c 3701.86
1981 20.00 z 0.00 z 101.00 t 266.00 g 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
1982 20.50 z 91.50 162.00 101.00 t 389.50 j 182.50 x 1036.50 1060.50 737.50 378.00 83.00 47.00 3596.00
1983 83.00 135.50 311.00 367.50 717.50 791.00 964.00 1084.00 686.50 439.50 244.50 8.50 5832.50
1984 29.50 54.50 249.00 349.50 531.50 751.50 1079.00 1088.00 698.00 372.50 126.00 8.50 5337.50
1985 0.00 27.50 141.50 490.38 d 693.00 872.00 1234.00 986.50 635.00 444.00 93.50 0.00 5617.38
1986 2.00 69.50 279.50 351.50 624.13 a 949.00 952.50 1185.00 682.00 479.00 162.00 8.50 5744.63
1987 21.00 62.50 236.50 491.50 724.50 886.00 1049.35 a 1041.00 847.00 465.00 188.50 48.50 6061.35
1988 11.00 92.50 190.00 413.00 601.00 786.00 1066.50 1013.50 739.00 605.50 212.00 30.00 5760.00
1989 61.50 4.00 184.50 453.50 608.50 870.00 1014.00 986.00 777.00 459.00 214.00 30.00 5662.00
1990 81.50 59.00 198.00 489.00 589.50 806.00 1143.00 1087.00 921.50 413.50 210.00 19.00 6017.00
1991 16.50 87.00 122.50 384.00 558.00 694.50 1080.50 1136.50 820.00 466.00 126.50 71.50 5563.50
1992 48.50 96.00 276.50 451.50 705.50 976.00 1027.50 1070.00 687.50 476.00 143.50 26.50 5985.00
1993 2.00 4.50 123.50 373.50 733.00 767.50 874.50 957.50 744.50 492.50 60.50 53.50 5187.00
1994 60.50 47.50 213.00 481.00 708.00 783.50 1168.50 1062.00 842.50 433.50 71.50 75.00 5946.50
1995 10.50 124.00 194.00 342.00 667.50 777.00 1057.50 911.50 850.00 404.50 227.50 51.00 5617.00
1996 43.00 49.50 160.00 389.50 504.00 747.50 1076.50 1018.00 697.00 430.00 87.50 22.00 5224.50
1997 21.50 55.00 195.00 337.50 674.00 768.50 996.00 1098.50 779.00 422.00 147.50 31.00 5525.50
1998 44.50 93.00 226.00 347.50 609.00 814.50 1222.00 1100.50 899.00 407.00 226.50 77.50 6067.00
1999 80.50 105.00 181.50 317.00 530.50 756.50 977.00 1083.00 717.50 411.00 222.00 85.00 5466.50
2000 19.50 34.00 177.73 a 444.50 640.50 842.07 a 1040.05 a 1048.50 708.50 412.00 56.00 0.00 5423.35
2001 6.00 12.00 206.00 333.00 663.00 751.50 1074.50 1108.00 857.00 436.50 155.00 50.00 5652.50
2002 49.50 63.50 127.50 386.50 573.00 859.50 1129.00 1013.00 777.50 393.50 147.50 72.50 5592.50
2003 71.00 71.00 298.50 391.00 0.00 z 891.00 1174.50 1103.00 835.00 562.00 94.50 6.50 5498.00
2004 14.00 33.23 e 309.00 445.50 639.50 868.00 1158.50 1126.50 748.00 517.50 115.50 53.50 6028.73
2005 12.00 22.00 289.50 399.50 694.50 783.50 0.00 z 0.00 z 750.50 0.00 z 96.50 14.50 3062.50
2006 68.50 0.00 z 194.00 386.50 0.00 z 832.50 1158.50 0.00 z 754.00 432.50 160.50 25.50 4012.50
2007 18.00 49.00 254.00 368.50 634.00 805.00 1160.00 1001.50 763.50 396.50 122.50 64.50 5637.00
2008 15.00 59.00 119.00 243.50 624.50 732.50 1051.00 1016.00 702.50 404.00 0.00 z 0.00 z 4967.00
Period of Record Statistics
MEAN 35.17 66.04 197.83 385.97 641.58 834.41 1086.20 1061.02 765.64 443.53 141.04 45.43 5716.05
S.D. 31.58 39.16 54.21 66.67 71.86 74.76 83.86 80.61 73.72 50.18 51.99 28.06 311.87
SKEW 0.96 0.86 0.26 -0.26 0.05 0.29 0.03 0.55 0.24 1.03 0.21 0.21 0.46
MAX 129.50 193.00 311.00 491.50 813.50 980.00 1264.50 1257.00 931.50 605.50 244.50 102.00 6652.50
MIN 0.00 4.00 93.50 232.00 503.00 694.50 874.50 911.50 623.00 372.50 50.50 0.00 5116.47
NO YRS 52 52 53 52 49 51 52 50 52 52 53 53 46