DOWNIEVILLE, CALIFORNIA

Monthly Total Growing Degree Days

(042500)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 532.17 a 450.50 338.50 144.00 0.00 0.00 1465.17
1949 0.00 0.00 0.00 125.17 a 186.50 423.62 a 524.33 b 414.50 360.00 139.00 42.00 e 0.00 c 2215.12
1950 0.00 0.00 2.21 c 100.18 b 260.50 349.14 a 610.18 a 556.93 b 346.00 102.00 k 30.00 a 0.00 b 2255.15
1951 0.00 e 0.00 b 8.94 e 91.50 f 147.50 h 283.00 j 560.58 a 518.50 427.00 46.50 f 2.50 i 0.00 b 1515.03
1952 0.00 a 0.00 d 1.00 g 34.00 i 129.00 k 256.67 c 653.00 501.50 396.00 249.50 4.20 e 0.00 2060.87
1953 0.00 g 0.00 1.66 c 72.00 j 71.54 e 221.25 b 591.00 431.50 459.50 105.50 11.00 0.00 1892.95
1954 0.00 4.50 0.00 148.50 282.00 307.00 568.00 379.50 260.50 103.00 1.00 0.00 2054.00
1955 0.00 0.00 11.88 a 6.50 191.50 351.50 443.00 507.50 340.00 156.19 e 18.50 2.50 2029.08
1956 0.00 0.00 b 11.50 66.00 214.50 359.50 590.00 458.50 348.00 98.00 0.00 a 0.00 2146.00
1957 0.00 1.00 11.88 a 57.50 154.50 435.50 525.00 416.50 369.50 31.53 b 0.00 0.00 2002.92
1958 0.00 0.50 0.00 j 33.00 252.00 339.00 580.22 a 673.50 424.00 253.50 14.00 0.00 2569.72
1959 0.00 0.00 5.50 117.00 h 126.00 433.39 b 556.50 h 518.50 285.00 195.50 7.00 0.00 1570.89
1960 0.00 0.00 44.00 54.50 122.50 f 492.50 632.63 d 497.50 437.00 151.38 a 15.00 0.00 2324.51
1961 0.00 0.00 1.00 101.00 112.50 496.50 621.55 a 580.00 286.50 173.00 0.00 0.00 2372.05
1962 2.50 0.00 0.00 123.00 108.50 380.50 572.50 510.50 402.00 138.00 23.00 2.00 2262.50
1963 0.00 8.00 0.00 14.50 230.50 328.00 451.50 490.00 404.50 155.50 1.00 0.00 2083.50
1964 0.00 0.00 7.00 52.50 140.50 305.50 561.00 559.00 317.50 248.00 0.00 e 8.00 l 2191.00
1965 0.00 n 0.00 j 2.50 j 54.00 l 152.00 j 342.50 552.00 507.50 261.50 234.50 9.50 h 0.00 j 1898.00
1966 0.00 k 0.00 h 27.00 i 92.50 k 272.50 f 365.00 477.40 a 610.00 386.50 194.00 38.50 j 0.00 j 2032.90
1967 0.00 l 0.00 j 0.00 h 0.00 k 198.00 f 337.50 627.00 694.50 459.50 113.50 42.69 d 0.00 n 2274.69
1968 0.00 m 5.50 i 14.50 j 92.40 e 181.50 459.50 620.00 463.00 409.00 130.64 c 0.00 n 0.00 l 2356.04
1969 0.00 j 0.00 i 7.00 k 41.50 i 318.27 a 385.50 617.50 575.00 430.50 55.00 19.50 h 0.00 j 2381.77
1970 0.00 i 0.00 i 18.00 i 8.28 a 267.00 464.00 641.50 567.00 326.50 159.81 b 5.00 l 0.00 k 2434.09
1971 0.00 u 1.50 i 4.00 h 19.50 h 120.38 a 311.00 616.00 642.50 357.00 153.40 b 0.00 0.00 2200.28
1972 0.00 0.00 b 54.00 34.29 b 228.50 438.50 625.50 555.50 270.00 98.00 0.54 b 0.00 b 2304.82
1973 0.00 a 0.00 0.00 96.50 326.50 456.00 638.50 544.50 351.00 106.90 b 4.00 h 0.00 f 2519.90
1974 0.00 b 0.00 g 2.87 d 19.00 197.88 a 445.50 535.00 529.00 444.83 a 186.53 b 0.00 j 0.00 l 2360.62
1975 0.00 i 0.00 i 0.00 j 1.00 f 218.07 b 399.50 545.08 a 502.50 486.00 113.84 b 1.50 f 0.00 c 2265.00
1976 0.00 b 0.00 6.95 b 11.67 c 293.50 173.50 p 256.00 p 374.58 a 386.50 187.50 7.00 n 0.00 z 1260.70
1977 0.00 z 0.00 z 3.00 i 54.50 i 47.50 515.56 c 568.33 a 607.82 c 314.00 174.67 e 1.50 j 0.00 m 2227.88
1978 0.00 n 0.00 k 29.50 j 28.00 l 126.50 j 0.00 z 576.27 c 0.00 z 276.72 a 150.50 l 0.00 z 0.00 w 852.99
1979 0.00 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 3.63 a 9.50 153.62 a 187.50 o 394.00 h 423.50 k 549.00 f 0.00 z 57.00 m 0.00 l 0.00 m 166.75
1982 0.00 a 0.00 c 0.00 j 12.00 l 126.00 l 337.50 337.50 k 373.00 i 204.00 j 91.00 0.00 0.00 o 428.50
1983 0.00 l 0.00 l 1.50 53.00 n 0.00 z 122.00 w 131.00 w 565.00 435.50 160.00 h 12.50 l 0.00 1002.00
1984 4.00 6.50 19.00 52.50 327.50 392.50 718.50 627.50 496.50 113.00 1.00 0.00 2758.50
1985 0.00 3.00 0.50 160.50 187.50 540.00 675.50 551.00 283.00 169.00 25.50 0.00 a 2595.50
1986 0.00 32.00 89.50 79.50 247.00 480.50 554.50 654.00 250.00 151.50 28.00 0.00 2566.50
1987 0.00 0.00 12.50 180.00 300.50 500.00 499.50 620.50 464.50 313.00 9.50 0.50 2900.50
1988 0.00 11.50 19.50 89.00 190.00 415.00 691.00 634.50 472.00 350.50 25.50 1.00 2899.50
1989 0.00 0.00 4.00 183.00 206.00 442.50 560.50 494.50 364.00 134.00 5.00 0.00 2393.50
1990 0.00 0.00 23.50 146.00 169.00 360.00 618.00 568.50 405.50 220.50 11.50 0.00 2522.50
1991 0.00 7.50 0.00 11.50 131.00 317.50 620.50 519.50 528.00 331.50 37.00 0.00 2504.00
1992 0.00 10.50 15.50 116.00 409.00 423.00 544.00 649.50 430.00 220.00 11.50 0.00 2829.00
1993 0.00 0.00 17.00 43.50 229.50 342.00 493.50 530.00 430.50 221.00 18.00 0.00 2325.00
1994 0.00 0.00 25.00 92.50 252.00 398.50 675.50 606.50 430.00 136.00 0.00 0.00 2616.00
1995 0.00 16.50 1.00 32.00 154.50 323.50 533.00 573.50 470.50 282.50 72.00 3.50 2462.50
1996 1.00 20.50 38.50 110.50 189.50 432.50 692.00 652.50 382.00 206.50 15.00 0.00 2740.50
1997 5.00 1.50 61.00 84.00 358.50 387.00 607.00 593.00 466.00 134.00 33.50 0.00 2730.50
1998 0.00 0.00 14.50 74.00 40.50 329.50 622.00 659.50 454.50 114.00 0.00 4.00 2312.50
1999 0.00 0.00 4.00 77.00 214.00 383.00 552.00 544.50 532.50 300.70 a 35.00 1.00 2643.70
2000 0.00 0.00 a 21.00 114.50 265.00 522.50 544.50 621.50 426.50 169.98 a 1.50 0.00 a 2686.98
2001 0.00 b 0.00 71.82 a 76.55 a 455.70 a 452.50 635.00 671.00 528.10 a 304.50 29.46 b 0.00 3224.64
2002 0.00 4.50 38.00 129.00 222.00 478.50 709.50 598.50 452.00 205.50 12.50 0.00 2850.00
2003 0.00 0.00 31.00 23.50 269.50 516.00 721.50 586.00 556.50 363.50 0.00 0.00 3067.50
2004 0.00 0.00 128.00 123.50 226.00 455.00 663.00 622.00 414.00 208.50 6.00 0.00 2846.00
2005 0.00 0.00 47.50 44.00 220.00 297.50 709.50 631.00 330.00 166.00 11.00 2.00 2458.50
2006 0.00 2.00 2.00 76.50 320.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 400.50
Period of Record Statistics
MEAN 0.29 3.04 20.11 81.36 219.88 398.52 594.05 554.94 395.61 179.54 14.25 0.39 2529.16
S.D. 1.03 6.44 27.13 48.86 86.85 74.02 67.51 77.69 76.71 74.92 16.03 0.97 315.75
SKEW 3.65 2.86 2.13 0.25 0.27 -0.07 -0.05 -0.39 -0.09 0.64 1.41 2.55 0.12
MAX 5.00 32.00 128.00 183.00 455.70 540.00 721.50 694.50 556.50 363.50 72.00 4.00 3224.64
MIN 0.00 0.00 0.00 6.50 40.50 221.25 443.00 374.58 250.00 31.53 0.00 0.00 2002.92
NO YRS 43 44 43 42 46 50 51 53 54 51 42 42 31