TRINITY RIVER HATCHERY, CALIFORNIA

Monthly Total Growing Degree Days

(049026)

Base Temperature = 40 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1974 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 969.00 843.50 498.00 178.00 0.00 z 2488.50
1975 34.00 45.50 114.50 143.00 580.50 779.00 966.00 907.00 858.00 400.50 111.00 48.50 4987.50
1976 32.50 68.50 174.50 242.00 609.50 697.50 1023.00 828.50 792.50 547.00 271.50 25.00 5312.00
1977 19.50 174.00 116.50 438.50 371.50 959.50 1029.00 1073.00 751.50 530.50 168.50 105.00 5737.00
1978 133.50 139.50 351.00 288.00 541.50 753.00 995.00 955.00 623.00 594.50 120.00 9.50 5503.50
1979 27.50 58.00 257.50 326.50 629.50 780.50 973.00 893.00 806.50 527.50 131.00 49.00 5459.50
1980 47.00 157.50 142.50 361.00 536.00 625.00 994.00 950.50 724.00 561.00 189.00 103.00 5390.50
1981 118.50 156.00 210.00 427.50 602.50 822.50 981.50 1018.50 774.50 388.00 252.50 100.50 5852.50
1982 2.50 89.50 117.50 227.50 623.50 747.00 890.00 919.50 652.50 446.00 101.00 30.50 4847.00
1983 64.00 85.50 159.00 208.50 590.50 697.50 813.00 922.00 734.50 561.50 129.00 59.00 5024.00
1984 59.50 91.00 269.00 275.00 591.00 723.00 1058.00 935.00 741.50 319.00 86.50 13.00 5161.50
1985 30.00 115.00 138.00 490.50 531.00 882.50 1052.00 0.00 z 612.50 450.50 82.00 34.00 4418.00
1986 106.00 152.50 345.00 376.00 566.00 874.00 929.50 0.00 z 586.50 505.00 185.50 34.50 4660.50
1987 10.50 65.00 172.00 475.50 681.50 846.00 888.00 1004.00 778.00 654.00 188.00 40.00 5802.50
1988 6.00 184.50 264.00 0.00 z 439.00 720.50 1065.50 1012.00 770.00 640.00 150.00 38.50 5290.00
1989 16.50 73.00 164.50 474.50 542.50 806.00 911.00 884.00 709.50 440.50 213.00 52.50 5287.50
1990 37.50 82.00 281.00 530.50 508.00 722.50 1050.50 962.50 776.50 508.00 121.50 6.50 5587.00
1991 42.00 210.50 101.00 292.00 472.00 701.00 1092.00 928.00 911.00 635.50 231.00 19.50 5635.50
1992 37.50 193.50 337.50 439.50 810.00 871.50 982.00 1036.50 764.00 569.00 189.00 12.50 6242.50
1993 7.50 61.00 351.50 298.00 566.00 709.00 885.00 929.50 767.00 581.50 114.00 32.50 5302.50
1994 62.00 63.50 323.50 405.00 651.00 764.50 1149.50 958.00 826.00 453.50 24.50 9.00 5690.00
1995 72.50 254.50 185.50 298.50 548.50 725.50 940.00 926.50 802.00 497.50 343.00 116.50 5710.50
1996 64.00 166.00 264.50 331.50 555.50 791.50 1114.50 1024.50 712.50 481.50 224.00 44.50 5774.50
1997 70.00 129.50 307.50 358.00 732.50 753.50 997.50 966.00 753.50 459.00 259.50 37.00 5823.50
1998 76.50 45.50 231.50 302.00 418.50 753.00 1050.50 1029.50 841.00 422.00 151.00 25.50 5346.50
1999 46.50 15.50 133.00 313.50 580.50 757.50 933.50 926.00 817.00 545.50 286.00 26.00 5380.50
2000 80.50 123.00 228.50 448.00 600.50 880.50 965.00 1000.00 744.00 491.50 133.00 47.00 5741.50
2001 23.50 53.50 335.00 297.50 775.00 796.50 1040.50 1024.50 820.00 584.50 224.50 33.00 6008.00
2002 62.00 145.50 191.50 460.50 573.00 851.50 1113.50 1003.50 827.00 506.00 217.00 73.00 6024.00
2003 169.50 128.50 284.00 217.00 582.00 895.00 1117.50 951.00 850.00 593.50 136.00 74.00 5998.00
2004 41.00 105.00 411.00 436.00 623.50 840.00 1073.00 1000.50 0.00 z 0.00 z 200.50 62.00 4792.50
2005 82.00 182.50 314.00 320.50 580.50 656.50 1094.50 1046.00 704.50 456.50 198.00 74.00 5709.50
2006 30.00 118.50 60.50 308.00 655.13 a 874.66 a 719.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2046.79
Period of Record Statistics
MEAN 53.50 116.66 229.27 348.71 583.38 783.05 1005.40 966.12 763.69 511.24 175.28 46.29 5568.11
S.D. 38.39 56.48 91.46 95.53 91.34 78.10 81.66 55.67 74.83 78.30 67.91 29.96 343.53
SKEW 1.13 0.37 0.06 0.00 0.20 0.18 -0.30 -0.21 -0.58 -0.22 0.22 0.83 -0.23
MAX 169.50 254.50 411.00 530.50 810.00 959.50 1149.50 1073.00 911.00 654.00 343.00 116.50 6242.50
MIN 2.50 15.50 60.50 143.00 371.50 625.00 813.00 828.50 586.50 319.00 24.50 6.50 4847.00
NO YRS 32 32 32 31 32 32 31 30 31 31 32 31 27