SHASTA DAM, CALIFORNIA

Monthly Total Growing Degree Days

(048135)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1223.50 1196.00 964.00 760.50 395.00 80.00 4619.00
1949 86.00 139.00 242.50 736.00 845.00 1119.00 1301.00 1177.48 a 1079.50 734.50 391.00 j 182.00 7641.98
1950 22.00 236.00 321.37 a 640.50 950.31 b 1033.00 1394.00 1321.00 1046.00 678.50 453.50 245.00 8341.18
1951 94.00 178.50 342.00 653.00 791.00 1123.50 1292.18 a 1270.50 1118.00 665.50 363.62 a 149.50 8041.30
1952 45.00 187.00 258.00 604.50 835.00 822.00 1348.50 840.00 j 1078.50 921.00 421.00 108.50 6629.00
1953 235.00 290.00 350.50 354.50 f 563.00 837.00 1309.50 1125.50 1128.50 749.00 378.00 306.50 7272.50
1954 139.50 353.50 323.50 662.50 894.50 891.50 1279.00 1076.00 923.50 726.50 404.00 139.50 7813.50
1955 128.50 206.00 379.50 345.00 812.00 979.50 1185.00 1348.50 1094.50 828.00 332.00 198.50 7837.00
1956 141.50 158.50 400.00 592.50 796.50 1026.00 1329.50 1210.50 1011.50 666.50 512.50 318.50 8164.00
1957 101.50 258.00 348.75 a 572.50 736.00 1118.50 1269.50 1171.50 1045.50 585.50 371.00 211.50 7789.75
1958 219.00 256.50 245.50 523.00 903.50 965.50 1276.68 a 1402.50 1081.00 921.00 473.00 416.00 8683.18
1959 241.50 208.50 524.00 739.00 754.50 1138.50 1420.00 1275.00 952.50 816.00 537.00 317.50 8924.00
1960 112.00 225.50 448.50 506.00 685.00 1211.50 1387.50 1285.00 1109.48 a 773.00 334.50 263.50 8341.48
1961 220.50 279.00 279.00 620.00 642.00 1135.00 1338.00 1283.00 974.50 741.00 340.50 178.50 8031.00
1962 256.00 200.00 267.50 697.50 691.00 1080.50 1322.00 1147.00 1035.00 714.00 463.00 337.50 8211.00
1963 206.00 387.50 315.50 306.00 783.50 967.50 1155.00 1202.00 1060.50 708.00 318.00 169.00 7578.50
1964 123.00 332.00 317.00 556.50 716.00 924.50 1283.50 1256.50 950.00 872.50 294.50 233.00 7859.00
1965 213.50 266.00 456.00 460.00 795.00 970.50 1240.00 1173.50 911.00 882.00 365.50 132.00 7865.00
1966 146.00 147.00 378.50 717.50 928.50 1036.50 1188.00 1338.50 1024.00 827.00 432.00 180.50 8344.00
1967 179.00 299.50 269.00 179.00 826.00 965.50 1352.50 1415.00 1129.00 761.50 508.50 166.50 8051.00
1968 164.00 341.00 430.00 593.00 770.50 1079.00 1322.50 1058.00 1048.00 717.50 350.00 72.00 7945.50
1969 66.00 59.00 346.50 478.50 901.00 985.50 1334.50 1321.50 1074.00 621.00 536.50 280.50 8004.50
1970 226.00 320.00 395.00 451.50 847.50 1053.00 1337.50 1268.00 1000.50 711.00 379.00 75.50 8064.50
1971 171.50 262.50 261.50 457.50 684.00 923.50 1320.00 1322.50 974.00 629.00 332.00 64.50 7402.50
1972 146.50 235.00 484.50 468.00 837.00 1061.50 1308.00 1270.50 928.00 676.00 302.50 91.50 7809.00
1973 85.00 243.00 248.50 615.00 968.00 1101.00 1350.50 1215.00 960.00 0.00 z 220.00 189.00 7195.00
1974 153.00 188.00 318.00 467.00 836.00 1117.50 1208.00 1270.00 1172.00 822.00 382.00 163.50 8097.00
1975 238.50 81.00 l 230.00 315.00 835.00 1029.00 1227.50 1167.50 1183.00 631.00 336.50 310.50 7503.50
1976 260.50 241.50 375.00 430.00 935.00 978.50 1335.50 1026.50 1011.00 839.50 549.50 326.00 8308.50
1977 190.50 372.00 291.50 664.50 558.00 1185.00 1283.50 1281.50 919.50 726.50 311.90 a 221.50 8005.90
1978 250.00 232.50 506.00 438.50 805.00 1024.00 1287.50 1247.00 880.00 941.00 366.50 162.50 8140.50
1979 168.50 163.50 431.00 498.00 869.50 1087.00 1254.00 1159.50 1108.00 757.50 375.00 253.00 8124.50
1980 297.08 a 298.50 359.50 545.00 755.50 820.50 1220.50 1209.00 1008.50 836.50 450.50 304.00 8105.08
1981 253.50 286.00 365.50 611.00 822.00 1112.50 1320.50 1300.00 1083.00 632.00 412.00 239.00 8437.00
1982 86.50 255.50 272.00 414.00 900.00 957.00 1186.00 1214.00 909.50 693.00 282.00 172.50 7342.00
1983 190.00 200.67 a 271.00 388.50 851.50 990.00 1093.50 1212.00 1030.50 787.00 304.00 173.00 7491.67
1984 321.00 296.00 479.50 481.00 854.50 1022.00 1389.50 1261.50 1067.00 587.50 244.00 154.50 8158.00
1985 218.50 327.00 388.50 779.00 883.00 1185.50 1403.50 1182.00 860.50 748.50 0.00 z 253.50 8229.50
1986 299.00 182.00 m 531.00 563.28 a 814.00 1150.50 1254.00 0.00 z 862.00 833.00 561.50 252.50 7120.78
1987 130.50 268.50 336.00 721.50 933.50 1123.00 1150.50 1317.00 1100.00 973.50 388.00 155.50 8597.50
1988 183.50 436.50 515.00 0.00 z 693.50 457.00 r 1400.50 1306.50 1145.50 988.50 304.00 255.50 7229.00
1989 185.50 174.50 346.00 672.00 784.50 1044.50 1274.00 1173.00 981.00 696.50 502.00 338.00 8171.50
1990 215.00 179.50 468.00 708.00 745.00 980.00 1316.50 1226.00 1082.00 827.50 402.50 150.00 8300.00
1991 251.00 433.50 230.00 468.50 671.50 959.00 1360.50 1178.50 1223.50 980.50 477.50 249.00 8483.00
1992 162.50 367.50 449.00 631.00 1076.50 1057.50 1219.50 1312.00 1074.50 848.00 415.00 142.50 8755.50
1993 138.00 176.00 489.50 480.00 756.00 940.00 1196.50 1202.50 1069.00 813.00 442.00 220.00 7922.50
1994 309.00 180.50 522.50 593.00 823.50 1008.00 1388.00 1274.50 1101.00 748.00 183.00 91.50 8222.50
1995 219.00 405.00 328.00 467.50 737.00 894.50 1184.00 1241.50 1103.50 844.50 554.50 269.00 8248.00
1996 193.00 327.00 460.00 525.00 770.00 1069.00 1372.50 1352.00 1019.00 738.50 441.50 257.00 8524.50
1997 253.50 345.50 520.00 562.00 946.50 998.00 1259.50 1208.50 1005.00 707.00 398.50 225.50 8429.50
1998 180.50 120.00 376.50 460.00 476.00 901.00 1303.50 1317.00 1101.50 730.50 301.50 170.00 7438.00
1999 229.50 131.00 265.00 519.00 804.50 993.50 1207.50 1181.50 1140.00 853.50 439.00 302.50 8066.50
2000 200.00 233.00 439.50 627.00 796.00 1152.00 1221.00 1301.00 959.50 713.50 302.00 307.50 8252.00
2001 197.00 148.00 529.00 467.00 1030.50 1050.00 b 1256.50 1282.50 1100.50 889.00 395.17 a 157.00 8502.17
2002 179.50 307.00 355.00 608.50 797.50 1111.50 1372.50 1276.00 1111.50 822.00 475.00 191.50 8607.50
2003 312.50 289.00 430.00 339.50 651.50 g 1147.00 1396.50 1216.50 1173.00 943.00 273.00 175.50 7695.50
2004 151.00 209.50 622.50 632.50 0.00 z 1116.50 1340.50 1279.50 1054.50 0.00 z 0.00 z 259.00 6665.50
2005 191.50 340.50 464.50 477.50 731.50 858.50 1398.50 0.00 z 990.00 0.00 z 426.00 248.00 6126.50
2006 184.00 322.50 142.50 444.50 913.00 1126.50 923.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3133.00
Period of Record Statistics
MEAN 185.54 255.79 374.82 538.81 806.46 1030.49 1292.24 1241.95 1040.17 775.24 391.14 211.33 8126.78
S.D. 67.18 83.36 100.23 123.66 110.85 95.87 75.60 78.68 83.84 101.27 87.24 78.37 354.38
SKEW -0.16 0.11 0.16 -0.34 -0.40 -0.32 -0.37 -0.38 -0.25 0.25 0.03 0.15 -0.20
MAX 321.00 436.50 622.50 779.00 1076.50 1211.50 1420.00 1415.00 1223.50 988.50 561.50 416.00 8924.00
MIN 22.00 59.00 142.50 179.00 476.00 820.50 1093.50 1026.50 860.50 585.50 183.00 64.50 7342.00
NO YRS 58 56 58 56 56 57 58 55 58 55 55 58 46