OROVILLE, CALIFORNIA

Monthly Total Growing Degree Days

(046521)

Base Temperature = 50 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 120.50 u 337.50 578.50 972.50 767.50 752.00 389.00 164.50 15.50 3977.00
1954 2.50 44.50 72.00 361.00 562.50 665.50 957.50 744.00 615.00 388.50 85.50 6.50 4505.00
1955 0.00 20.00 148.00 153.50 517.91 b 684.50 832.50 893.50 697.50 457.00 128.00 32.66 c 4565.07
1956 17.00 5.50 j 137.00 271.50 497.50 741.50 901.50 800.50 660.50 392.50 109.00 0.50 4529.00
1957 3.50 106.00 158.50 269.00 444.00 814.00 634.00 i 801.02 c 487.50 g 304.00 50.50 14.50 2965.02
1958 16.50 124.50 36.50 249.00 586.50 686.00 897.00 1004.50 746.00 547.50 203.00 75.43 a 5172.43
1959 57.00 29.50 195.50 409.50 446.00 786.50 978.00 825.00 627.50 504.04 d 154.00 14.50 5027.04
1960 21.50 46.00 184.50 268.00 430.00 846.50 981.50 905.50 745.00 454.00 150.54 b 28.00 5061.04
1961 23.77 a 75.50 113.50 335.00 420.00 874.50 1039.00 977.50 671.00 481.00 121.50 14.50 5146.77
1962 37.00 35.00 100.50 431.00 474.00 776.00 969.00 865.70 d 714.00 441.00 206.50 29.50 5079.20
1963 0.00 a 200.50 109.50 145.50 490.50 708.00 846.50 890.00 780.50 478.00 106.00 0.00 4755.00
1964 4.50 62.00 134.00 287.00 457.50 682.00 0.00 z 0.00 z 684.50 583.00 80.50 94.50 3069.50
1965 9.00 53.50 171.00 297.00 550.50 632.50 921.50 914.00 598.50 561.00 188.79 a 2.00 4899.29
1966 21.50 26.00 187.50 452.50 640.00 778.00 852.00 986.00 754.00 499.74 b 203.00 28.00 5428.24
1967 23.00 41.00 130.50 53.50 566.50 677.50 1040.00 1084.50 830.50 526.00 254.50 41.50 5269.00
1968 23.00 169.00 196.00 350.50 518.50 828.00 960.50 780.50 751.00 411.00 96.00 7.50 5091.50
1969 13.50 14.00 156.50 269.50 648.00 693.00 987.50 981.50 801.50 379.00 167.50 54.00 5165.50
1970 102.00 106.00 200.50 219.50 632.50 777.00 1014.50 897.50 705.50 396.00 176.50 11.50 5239.00
1971 11.50 32.00 126.00 236.00 425.00 684.50 1004.50 973.50 742.00 388.50 110.50 3.00 4737.00
1972 5.50 86.00 296.00 288.50 587.00 797.50 957.00 919.00 637.00 406.50 65.50 0.00 z 5045.50
1973 29.00 81.00 83.00 365.00 695.00 844.50 956.50 862.00 668.50 439.00 111.00 19.00 5153.50
1974 43.50 22.50 165.00 231.21 a 566.00 792.00 912.50 918.50 794.50 549.50 98.79 a 15.00 5109.00
1975 0.50 42.50 99.50 140.50 587.50 750.00 881.50 848.50 0.00 z 0.00 z 0.00 z 0.00 z 3350.50
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 35.50 f 10.85 a 10.85
1983 21.91 b 65.00 120.00 166.00 541.00 678.21 b 791.00 847.50 701.50 507.00 111.50 27.00 4577.63
1984 28.00 46.50 256.00 176.25 b 541.00 715.38 d 1021.00 843.50 738.00 281.50 0.00 z 13.00 4660.13
1985 0.00 103.00 88.00 348.50 424.59 c 795.50 933.62 a 735.50 505.50 366.00 90.50 31.00 d 4421.71
1986 27.50 129.50 248.00 229.82 b 495.50 750.00 835.50 831.00 407.07 a 407.50 155.50 1.07 b 4517.96
1987 13.00 44.00 151.50 464.50 635.50 791.00 728.00 801.50 589.00 535.50 0.00 z 31.00 4784.50
1988 12.50 0.00 z 0.00 z 340.00 408.50 0.00 z 0.00 z 810.00 621.00 466.00 82.00 23.50 2763.50
1989 4.00 s 56.00 171.50 406.00 518.00 0.00 z 818.50 723.00 521.00 279.50 115.50 7.00 3616.00
1990 5.00 f 32.00 178.00 356.50 0.00 z 625.50 866.00 755.00 606.50 462.50 79.50 0.00 3961.50
1991 16.00 108.00 30.50 188.00 370.97 a 579.00 867.00 700.50 699.50 552.00 139.00 3.00 4253.47
1992 2.50 120.00 174.50 339.00 659.00 662.50 792.00 845.50 664.50 494.50 151.50 5.00 4910.50
1993 17.00 23.00 273.00 260.50 516.00 671.50 849.00 796.50 652.50 448.50 108.00 16.00 4631.50
1994 13.50 17.50 230.50 312.50 516.50 690.50 855.00 788.50 600.00 351.00 11.50 0.00 4387.00
1995 20.50 60.00 81.12 a 128.00 335.00 306.50 g 750.00 744.00 518.00 392.00 236.00 80.00 3344.62
1996 23.00 132.50 169.00 266.50 487.00 0.00 z 998.00 887.50 606.00 358.00 105.50 39.00 4072.00
1997 47.50 24.00 216.50 322.50 670.12 a 704.00 926.00 800.50 682.50 415.52 e 237.00 33.07 a 5079.20
1998 36.00 31.50 185.50 255.50 325.50 587.50 948.71 b 858.50 680.50 369.50 85.50 23.50 4387.71
1999 2.50 z 10.00 n 44.50 m 144.00 n 71.00 y 443.50 j 426.50 o 648.50 f 273.00 r 363.00 g 95.50 h 17.00 q 0.00
2000 11.00 j 13.00 s 70.00 t 169.50 q 183.50 w 437.50 n 431.50 o 700.00 f 270.00 r 143.50 t 54.50 l 1.50 o 0.00
2001 2.00 n 37.52 c 256.78 a 249.31 a 751.23 a 609.00 g 679.00 f 853.65 d 714.31 a 378.50 l 135.50 i 16.50 k 2862.81
2002 16.65 d 80.64 c 138.47 a 309.83 a 506.50 743.00 885.50 791.50 677.50 412.50 155.00 40.00 4757.08
2003 102.50 0.00 z 41.00 z 105.50 i 450.07 d 764.00 685.50 i 793.00 703.00 336.00 l 85.50 24.50 2922.57
2004 5.50 40.00 315.00 394.50 579.00 560.00 g 869.00 812.00 651.50 398.02 c 75.50 18.00 4158.02
2005 2.50 g 76.00 224.50 229.50 482.00 0.00 z 809.50 f 922.50 602.00 407.50 184.00 64.98 e 3192.98
2006 33.50 81.50 38.75 a 228.62 a 596.75 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 979.12
Period of Record Statistics
MEAN 22.56 66.47 160.67 280.36 520.23 725.83 910.44 850.73 669.47 436.11 131.00 23.79 4863.98
S.D. 22.92 43.55 68.12 91.98 98.43 76.16 79.90 84.15 85.77 75.31 54.66 22.55 327.13
SKEW 2.14 1.12 0.17 -0.11 0.06 -0.10 -0.32 0.57 -0.71 0.01 0.38 1.42 -0.25
MAX 102.50 200.50 315.00 464.50 751.23 874.50 1040.00 1084.50 830.50 583.00 254.50 94.50 5428.24
MIN 0.00 14.00 30.50 53.50 325.50 578.50 728.00 700.50 407.07 279.50 11.50 0.00 4253.47
NO YRS 40 41 42 43 44 37 38 43 42 41 40 42 27