DOWNIEVILLE, CALIFORNIA

Monthly Total Growing Degree Days

(042500)

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 842.17 a 760.50 620.50 421.50 127.50 5.50 2777.67
1949 2.50 13.00 40.50 392.59 a 473.50 723.62 a 834.33 b 724.50 660.00 380.50 220.20 e 24.36 c 4489.59
1950 0.00 60.00 104.62 c 324.64 b 508.00 632.07 a 920.18 a 866.93 b 643.00 284.50 k 242.07 a 75.36 b 4376.88
1951 4.77 e 44.69 b 153.81 e 291.00 f 336.50 h 482.50 j 870.58 a 828.50 727.00 251.00 f 87.00 i 17.10 b 2646.46
1952 0.00 a 12.76 d 45.50 g 192.00 i 316.50 k 546.67 c 963.00 811.50 688.00 559.50 140.40 e 3.00 3724.83
1953 46.50 g 85.50 117.91 c 198.00 j 288.54 e 511.07 b 901.00 741.50 759.50 372.00 146.00 42.00 3965.02
1954 2.50 138.50 102.00 404.00 584.00 592.50 878.00 689.50 560.00 390.50 149.00 8.50 4499.00
1955 0.00 16.00 102.30 a 108.50 453.00 648.00 753.00 817.50 639.00 458.44 e 105.00 56.00 4156.74
1956 20.50 17.72 b 164.00 253.00 486.00 658.50 900.00 768.50 648.00 325.50 81.72 a 9.00 4332.45
1957 0.00 69.00 150.35 a 277.50 416.50 735.50 835.00 726.50 669.50 298.24 b 62.50 16.00 4256.59
1958 10.50 69.50 20.50 j 216.50 552.50 638.50 890.22 a 983.50 723.00 557.50 143.00 48.00 4832.72
1959 38.50 31.00 195.00 326.50 h 383.00 733.39 b 786.50 h 828.50 584.50 498.50 182.50 22.50 3497.39
1960 2.00 20.50 198.00 251.50 330.50 f 792.50 942.63 d 807.50 737.00 439.68 a 109.00 16.50 4316.81
1961 30.00 75.50 113.00 317.00 389.50 796.50 931.55 a 890.00 585.00 413.00 103.00 7.00 4651.05
1962 46.50 19.50 63.00 389.50 379.50 680.50 882.50 820.50 702.00 430.00 190.50 66.50 4670.50
1963 15.50 208.50 79.50 114.50 510.00 625.50 761.50 800.00 704.50 443.00 91.50 23.00 4377.00
1964 0.50 48.50 106.50 254.50 388.00 593.00 871.00 869.00 611.00 548.50 75.60 e 67.00 l 4366.10
1965 6.50 n 52.50 j 108.50 j 167.00 l 344.00 j 641.50 862.00 817.50 558.00 533.00 135.00 h 2.00 j 3412.00
1966 0.00 k 6.00 h 125.00 i 249.50 k 522.50 f 662.00 787.40 a 920.00 683.50 487.00 157.00 j 7.00 j 3539.90
1967 7.00 l 55.00 j 85.00 h 18.00 k 408.50 f 615.00 937.00 1004.50 759.50 415.50 264.81 d 12.50 n 3996.31
1968 14.00 m 71.00 i 116.50 j 325.20 e 465.00 759.50 930.00 773.00 704.50 419.61 c 39.00 n 6.00 l 4376.81
1969 6.00 j 2.00 i 59.00 k 191.50 i 628.27 a 685.50 927.50 885.00 730.50 314.00 123.50 h 20.50 j 4170.77
1970 69.50 i 81.50 i 138.00 i 153.62 a 540.50 764.00 951.50 877.00 626.00 427.05 b 105.00 l 2.50 k 4339.67
1971 0.00 u 41.50 i 77.50 h 179.00 h 403.00 a 596.50 926.00 952.50 645.50 348.48 b 106.00 0.00 3977.98
1972 1.50 52.09 b 274.00 210.00 b 511.50 733.50 935.50 865.50 570.00 366.00 46.07 b 4.28 b 4569.94
1973 6.72 a 52.00 71.50 332.00 627.00 756.00 948.50 854.50 648.50 387.50 b 64.00 h 5.00 f 4684.22
1974 24.05 b 22.00 g 144.67 d 203.00 488.25 a 745.50 845.00 839.00 744.83 a 477.29 b 61.50 j 6.00 l 4511.59
1975 24.00 i 32.50 i 32.50 j 58.00 f 491.72 b 699.50 855.08 a 812.50 786.00 315.34 b 80.50 f 19.93 c 3980.08
1976 22.45 b 53.00 130.95 b 162.22 c 603.50 313.50 p 406.00 p 684.07 a 686.50 494.00 141.00 n 0.00 z 2836.69
1977 0.00 z 0.00 z 59.00 i 253.50 i 258.50 815.56 c 878.33 a 917.82 c 613.50 476.92 e 114.50 j 28.50 m 3960.63
1978 11.00 n 28.00 k 179.00 j 134.50 l 310.00 j 0.00 z 886.27 c 0.00 z 572.07 a 333.50 l 0.00 z 5.00 w 1458.34
1979 19.00 k 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 108.89 a 184.00 417.93 a 347.50 o 614.00 h 623.50 k 799.00 f 0.00 z 209.50 m 97.50 l 15.50 m 710.82
1982 0.00 a 72.80 c 63.50 j 87.00 l 309.00 l 637.50 537.50 k 593.00 i 402.50 j 362.50 38.00 5.00 o 1110.80
1983 26.50 l 41.50 l 98.50 178.50 n 0.00 z 192.00 w 211.00 w 875.00 735.50 390.00 h 77.50 l 45.50 1754.50
1984 108.00 106.00 261.50 261.00 632.00 692.00 1028.50 937.50 796.50 356.00 87.50 24.00 5290.50
1985 65.00 137.50 101.00 429.00 491.00 840.00 985.50 861.00 581.00 457.00 108.50 66.65 a 5123.15
1986 121.00 152.00 304.00 327.00 529.50 780.50 864.50 964.00 530.50 457.50 222.00 36.00 5288.50
1987 13.50 80.00 171.50 470.50 606.50 800.00 809.50 930.50 764.50 623.00 184.50 37.50 5491.50
1988 31.50 200.00 241.00 339.00 456.00 706.00 1001.00 944.50 772.00 660.50 135.00 69.00 5555.50
1989 13.00 53.00 173.00 429.50 515.50 742.50 870.50 804.50 663.50 392.50 189.00 79.50 4926.00
1990 22.00 40.50 212.00 440.00 469.00 660.00 928.00 878.50 705.50 528.00 171.00 18.00 5072.50
1991 56.00 213.50 43.50 240.50 401.00 617.50 930.50 829.50 828.00 588.50 192.50 23.00 4964.00
1992 51.50 123.00 224.50 407.50 719.00 723.00 854.00 959.50 730.00 519.50 148.00 3.50 5463.00
1993 2.50 12.00 265.00 281.00 539.50 633.00 803.50 840.00 730.50 531.00 150.50 30.50 4819.00
1994 84.50 36.50 266.00 342.50 545.00 698.50 985.50 916.50 730.00 440.50 14.50 2.00 5062.00
1995 40.50 201.00 125.00 226.50 446.50 620.00 843.00 883.50 770.50 592.50 341.00 100.00 5190.00
1996 80.00 168.00 222.00 341.00 494.50 732.50 1002.00 962.50 682.00 467.00 202.00 66.00 5419.50
1997 69.00 123.00 291.00 329.50 668.50 687.00 917.00 903.00 766.00 415.50 183.50 45.50 5398.50
1998 43.00 16.00 192.50 233.50 273.50 629.50 932.00 969.50 754.50 407.00 95.50 56.50 4603.00
1999 77.00 44.50 141.00 265.50 503.50 678.00 862.00 854.50 832.50 610.70 a 214.50 69.50 5153.20
2000 38.00 67.32 a 223.50 384.00 553.00 822.50 854.50 931.50 726.50 436.58 a 98.50 62.52 a 5198.42
2001 36.34 b 26.50 291.40 a 264.31 a 765.70 a 752.50 945.00 981.00 828.10 a 614.00 220.18 b 11.50 5736.54
2002 25.00 138.00 164.00 363.00 516.00 778.50 1019.50 908.50 752.00 505.00 235.00 29.00 5433.50
2003 123.50 84.00 248.50 151.50 536.00 816.00 1031.50 896.00 856.50 664.00 70.00 40.00 5517.50
2004 17.50 25.50 386.00 381.00 532.00 754.50 973.00 932.00 711.00 445.00 155.50 49.50 5362.50
2005 7.00 93.00 216.00 281.50 513.00 591.50 1019.50 941.00 630.00 463.00 192.00 89.50 5037.00
2006 42.00 124.00 39.00 250.50 627.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1083.00
Period of Record Statistics
MEAN 32.46 80.31 172.02 298.74 503.54 695.50 904.05 864.93 693.84 461.47 148.45 36.17 5003.49
S.D. 33.74 58.22 80.97 92.04 105.47 77.14 67.51 77.72 78.43 90.92 67.56 26.83 437.50
SKEW 1.19 0.82 0.35 -0.18 -0.06 -0.12 -0.05 -0.39 -0.11 0.40 0.36 0.52 -0.34
MAX 123.50 213.50 386.00 470.50 765.70 840.00 1031.50 1004.50 856.50 664.00 341.00 100.00 5736.54
MIN 0.00 12.00 39.00 108.50 258.50 511.07 753.00 684.07 530.50 298.24 14.50 0.00 4156.74
NO YRS 43 44 43 42 46 50 51 53 54 51 42 42 31