OROVILLE, CALIFORNIA

Monthly Total Growing Degree Days

(046521)

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
1953 0.00 z 0.00 z 0.00 z 210.50 u 647.50 878.50 1282.50 1077.50 1052.00 699.00 441.00 249.50 6327.50
1954 204.50 234.00 339.50 661.00 872.50 965.50 1267.50 1054.00 915.00 698.50 349.50 114.00 7675.50
1955 58.50 196.00 437.50 432.00 827.91 b 984.50 1142.50 1203.50 997.50 767.00 369.00 262.95 c 7678.86
1956 238.00 92.00 j 422.00 564.00 807.50 1041.50 1211.50 1110.50 960.50 698.00 403.00 155.00 7611.50
1957 108.50 328.00 455.00 569.00 754.00 1114.00 854.00 i 1111.02 c 717.50 g 614.00 325.00 158.50 5537.02
1958 188.50 386.50 312.00 546.50 896.50 986.00 1207.00 1314.50 1046.00 857.50 474.50 368.90 a 8584.40
1959 281.00 253.50 504.50 709.50 756.00 1086.50 1288.00 1135.00 927.50 814.04 d 451.00 202.50 8409.04
1960 189.00 294.50 484.00 567.00 740.00 1146.50 1291.50 1215.50 1045.00 764.00 434.46 b 211.50 8382.96
1961 152.42 a 334.50 412.50 633.00 730.00 1174.50 1349.00 1287.50 971.00 791.00 399.50 165.00 8399.92
1962 175.00 248.50 376.50 731.00 784.00 1076.00 1279.00 1175.70 d 1014.00 751.00 495.00 214.50 8320.20
1963 84.73 a 480.50 393.50 427.00 800.50 1008.00 1156.50 1200.00 1080.50 788.00 370.50 69.00 7858.73
1964 160.00 320.50 394.00 583.00 767.00 982.00 0.00 z 0.00 z 984.50 893.00 325.50 337.00 5746.50
1965 188.00 283.50 478.00 588.50 860.50 932.50 1231.50 1224.00 898.50 871.00 469.14 a 86.50 8111.64
1966 212.00 234.00 471.00 752.50 950.00 1078.00 1162.00 1296.00 1054.00 809.74 b 481.00 213.50 8713.74
1967 214.00 268.00 417.00 326.00 876.50 977.50 1350.00 1394.50 1130.50 836.00 539.00 220.50 8549.50
1968 172.00 448.00 503.00 650.50 828.50 1128.00 1270.50 1090.50 1051.00 720.50 379.50 136.50 8378.50
1969 139.50 205.00 423.50 566.00 958.00 993.00 1297.50 1291.50 1101.50 689.00 459.00 314.00 8437.50
1970 337.00 366.50 497.50 512.50 942.50 1077.00 1324.50 1207.50 1005.50 705.00 476.50 189.00 8641.00
1971 197.50 237.50 407.50 531.50 735.00 984.50 1314.50 1283.50 1042.00 685.50 400.00 129.50 7948.50
1972 95.00 337.50 597.50 583.00 897.00 1097.50 1267.00 1229.00 937.00 716.50 323.00 0.00 z 8080.00
1973 181.50 344.00 359.00 665.00 1005.00 1144.50 1266.50 1172.00 968.50 749.00 373.50 253.50 8482.00
1974 220.00 260.00 455.50 523.97 a 876.00 1092.00 1222.50 1228.50 1094.50 859.50 385.86 a 181.00 8399.33
1975 140.50 261.50 385.00 422.00 897.00 1050.00 1191.50 1158.50 0.00 z 0.00 z 0.00 z 0.00 z 5506.00
1976 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 0.00 z 0.00
1977 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 0.00 z 0.00
1978 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 0.00 z 0.00
1979 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 0.00 z 0.00
1980 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 0.00 z 0.00
1981 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 0.00 z 0.00
1982 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 224.50 f 240.25 a 240.25
1983 157.14 b 336.50 427.00 463.00 851.00 978.21 b 1101.00 1157.50 1001.50 817.00 377.50 268.00 7935.35
1984 217.50 300.50 566.00 471.96 b 849.50 1015.38 d 1331.00 1153.50 1038.00 578.50 0.00 z 218.50 7740.35
1985 53.00 326.00 352.00 648.50 734.59 c 1095.50 1243.62 a 1045.50 805.50 676.00 286.00 142.37 d 7408.58
1986 278.00 380.00 555.50 527.14 b 805.50 1050.00 1145.50 1141.00 707.07 a 717.50 448.00 203.10 b 7958.31
1987 177.00 296.00 446.50 764.50 945.50 1091.00 1038.00 1111.50 889.00 845.50 0.00 z 225.50 7830.00
1988 223.50 0.00 z 0.00 z 640.00 718.50 0.00 z 0.00 z 1120.00 921.00 776.00 343.50 206.00 4948.50
1989 85.00 s 241.50 463.50 706.00 828.00 0.00 z 1128.50 1033.00 821.00 589.50 402.50 143.50 6357.00
1990 124.00 f 175.00 463.50 656.50 0.00 z 925.50 1176.00 1065.00 906.50 772.50 346.50 103.00 6590.00
1991 189.00 385.00 253.00 483.50 678.90 a 879.00 1177.00 1010.50 999.50 862.00 425.00 172.50 7514.90
1992 111.50 401.00 484.50 639.00 969.00 962.50 1102.00 1155.50 964.50 804.50 434.50 162.00 8190.50
1993 187.00 256.50 583.00 560.50 826.00 971.50 1159.00 1106.50 952.50 758.50 364.50 189.50 7915.00
1994 235.00 226.50 534.50 609.00 826.50 990.50 1165.00 1098.50 900.00 661.00 185.50 71.00 7503.00
1995 249.50 307.50 348.75 a 420.50 645.00 536.50 g 1060.00 1054.00 818.00 702.00 536.00 345.00 6486.25
1996 247.00 375.50 469.00 565.50 797.00 0.00 z 1308.00 1197.50 906.00 668.00 402.00 247.00 7182.50
1997 249.00 268.50 519.50 622.50 980.12 a 1004.00 1236.00 1110.50 982.50 725.52 e 537.00 290.88 a 8526.02
1998 289.50 279.50 476.50 548.00 635.50 887.50 1258.71 b 1168.50 980.50 679.50 379.50 167.50 7750.71
1999 35.00 z 122.00 n 210.00 m 296.00 n 131.00 y 643.50 j 586.50 o 898.50 f 393.00 r 603.00 g 298.50 h 123.00 q 0.00
2000 153.50 j 108.50 s 171.50 t 299.50 q 263.50 w 597.50 n 591.50 o 950.00 f 390.00 r 252.50 t 186.00 l 124.50 o 0.00
2001 97.50 n 260.40 c 560.58 a 542.07 a 1061.23 a 839.00 g 929.00 f 1163.65 d 1014.31 a 568.50 l 336.00 i 185.50 k 4602.24
2002 190.59 d 331.52 c 416.43 a 609.83 a 816.50 1043.00 1195.50 1101.50 977.50 722.50 453.50 293.00 8151.37
2003 399.00 0.00 z 91.00 z 314.00 i 760.07 d 1064.00 905.50 i 1103.00 1003.00 526.00 l 342.00 245.00 4916.07
2004 182.00 295.00 616.00 694.50 889.00 790.00 g 1179.00 1122.00 951.50 707.46 c 342.00 224.00 7202.46
2005 124.00 g 345.50 534.50 526.50 792.00 0.00 z 1059.50 f 1232.50 902.00 717.50 465.00 285.56 e 5801.06
2006 295.50 313.00 299.15 a 525.52 a 906.75 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2339.92
Period of Record Statistics
MEAN 196.70 303.00 449.88 576.02 830.13 1025.83 1220.44 1160.73 969.47 745.31 404.87 206.56 8141.67
S.D. 71.16 66.64 82.72 96.73 98.49 76.16 79.90 84.15 85.77 76.32 72.39 72.23 382.88
SKEW 0.33 0.47 -0.12 -0.21 0.06 -0.10 -0.32 0.57 -0.71 -0.03 -0.36 0.15 -0.38
MAX 399.00 480.50 616.00 764.50 1061.23 1174.50 1350.00 1394.50 1130.50 893.00 539.00 368.90 8713.74
MIN 53.00 175.00 253.00 326.00 635.50 878.50 1038.00 1010.50 707.07 578.50 185.50 69.00 7408.58
NO YRS 40 41 42 43 44 37 38 43 42 41 40 42 27