POTTER VALLEY P H, CALIFORNIA

Monthly Total Growing Degree Days

(047109)

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 959.50 948.00 818.50 640.50 302.50 74.00 3743.00
1949 37.00 145.50 297.00 557.50 680.00 922.00 1043.00 913.50 892.50 595.50 503.50 136.00 6723.00
1950 74.00 251.00 302.25 a 489.00 695.50 801.50 1131.00 1069.00 856.00 638.00 470.00 301.00 7078.25
1951 171.50 212.50 327.00 535.00 662.50 875.00 1007.00 1033.50 925.00 590.00 346.50 153.50 6839.00
1952 88.00 210.50 238.50 512.50 714.00 717.50 1155.50 1012.00 935.00 760.00 299.00 165.00 6807.50
1953 267.50 277.50 311.50 414.31 a 490.00 610.80 e 1048.04 e 633.00 i 957.41 a 451.50 g 360.54 b 163.00 f 4737.60
1954 144.09 d 304.64 c 275.79 b 532.78 c 494.00 i 735.00 757.00 h 439.50 p 762.00 428.00 i 361.11 c 116.00 k 3115.41
1955 73.00 i 123.00 i 231.50 i 203.00 i 531.50 f 805.38 d 689.00 h 670.00 k 837.12 d 655.17 e 260.19 d 244.68 c 2802.54
1956 191.17 d 138.50 348.15 e 359.00 f 617.79 c 824.40 e 1082.23 c 748.00 g 480.00 l 122.00 t 155.50 q 112.00 f 3202.24
1957 65.10 a 278.96 a 331.00 482.50 626.09 c 690.50 f 705.00 i 914.00 838.45 a 521.63 e 200.50 i 141.00 i 4057.74
1958 138.00 i 294.00 d 161.00 g 261.50 j 548.00 h 576.00 i 807.00 i 949.00 f 922.24 a 762.71 b 380.69 a 254.50 g 2359.64
1959 146.50 n 136.50 h 246.50 l 602.22 c 440.50 g 832.76 a 1135.63 a 217.00 y 151.50 x 561.50 h 398.40 e 147.00 h 2969.01
1960 167.52 e 223.63 c 308.00 j 304.00 h 383.50 j 635.50 l 816.50 i 644.50 l 629.00 i 440.00 i 187.50 j 158.50 g 391.15
1961 248.57 d 183.00 g 286.15 e 367.00 g 318.50 l 612.00 k 651.00 l 778.00 i 472.00 l 441.50 i 235.00 h 115.00 i 534.73
1962 179.50 f 130.50 g 242.63 e 395.50 h 360.50 j 610.00 i 639.00 l 660.50 j 571.00 j 429.00 h 233.00 j 189.00 k 242.63
1963 95.50 g 289.50 h 187.00 h 214.00 g 466.00 h 0.00 z 493.00 n 702.00 h 650.50 h 407.00 j 203.00 h 105.50 l 0.00
1964 59.00 h 160.50 i 126.00 n 194.00 m 371.00 j 462.50 l 718.00 i 722.50 i 559.00 j 432.50 l 176.00 h 183.62 e 183.62
1965 133.00 h 171.50 g 204.50 l 470.40 e 454.50 g 458.50 l 608.50 m 596.50 l 605.00 g 460.50 k 253.00 h 62.50 m 470.40
1966 127.00 g 105.00 g 312.00 f 450.00 h 501.50 j 557.50 i 657.50 i 484.50 r 416.50 o 378.00 l 212.00 l 150.00 h 0.00
1967 110.00 j 225.00 g 155.00 i 116.00 g 376.50 m 510.00 k 591.50 n 594.00 n 539.00 m 470.50 h 310.00 h 56.50 i 0.00
1968 103.50 g 348.00 e 253.50 k 496.67 c 603.35 d 558.00 j 1049.87 a 918.63 a 882.00 610.00 332.00 91.50 5332.02
1969 129.50 111.00 328.94 d 410.00 782.00 827.07 a 1082.00 1074.50 946.00 588.50 382.00 247.50 6909.01
1970 249.50 333.00 411.50 328.50 730.50 883.39 b 1121.00 1038.50 874.00 624.50 389.50 149.50 7133.39
1971 226.50 262.00 299.50 372.50 594.50 752.00 1080.00 1063.50 874.50 598.30 a 321.50 81.00 6525.80
1972 159.65 a 279.64 a 449.50 411.00 690.50 866.50 1045.00 1051.50 776.00 593.00 298.50 64.50 q 6620.79
1973 138.39 c 267.50 258.50 519.44 c 748.65 a 896.50 1044.00 974.50 415.50 o 456.50 h 268.39 b 0.00 z 5115.88
1974 156.19 e 171.50 350.82 a 398.00 634.50 863.50 1004.00 1062.00 995.77 d 686.00 324.00 209.25 a 6855.53
1975 219.58 a 181.00 259.37 a 285.00 a 701.63 a 848.79 a 998.50 992.00 942.50 540.50 264.50 230.00 6463.38
1976 196.50 237.00 266.00 352.50 678.00 789.50 1024.00 883.00 843.00 679.00 491.50 205.50 6645.50
1977 181.00 313.50 252.65 a 498.50 424.18 a 943.00 1016.50 1034.00 793.00 599.00 295.56 c 0.00 z 6350.89
1978 268.67 d 298.50 470.50 388.00 661.50 808.50 1089.17 e 1073.00 806.50 770.50 297.86 b 151.00 7083.70
1979 148.00 177.50 383.00 403.00 697.50 819.50 1021.50 922.00 898.50 633.36 b 234.00 g 141.00 l 6103.86
1980 226.00 321.00 303.50 432.00 552.50 639.00 0.00 z 963.50 816.00 654.00 310.71 b 227.00 5445.21
1981 241.00 269.50 329.50 481.50 641.50 908.00 1047.00 1018.50 858.50 498.14 b 0.00 z 264.00 6557.14
1982 109.50 266.00 273.50 396.50 701.00 800.50 981.00 981.50 798.50 579.50 229.50 153.00 6270.00
1983 218.50 256.00 275.50 321.50 672.50 777.00 893.00 981.50 891.50 674.00 279.00 222.00 6462.00
1984 271.00 215.50 420.00 362.50 655.00 785.50 1125.50 967.00 864.00 469.00 234.00 99.50 6468.50
1985 140.50 259.50 236.00 581.50 580.00 926.50 1088.50 920.50 704.50 591.50 201.00 197.00 6427.00
1986 265.50 298.00 471.00 438.00 0.00 z 451.50 o 960.50 1049.50 623.00 628.00 303.00 157.50 5194.00
1987 121.50 219.00 271.00 531.50 713.50 886.50 861.50 1005.50 827.00 722.00 299.00 139.00 6597.00
1988 131.50 315.00 397.00 448.50 513.00 745.00 0.00 z 0.00 z 892.00 701.50 283.89 c 187.50 4614.89
1989 150.50 0.00 z 324.50 0.00 z 575.57 a 794.50 900.00 913.00 758.00 545.00 326.00 157.00 5444.07
1990 117.50 129.50 365.50 551.00 562.50 739.00 1061.00 995.50 830.89 b 657.50 248.00 46.00 6303.89
1991 170.00 331.00 177.50 367.50 523.00 721.50 1089.00 938.00 959.50 770.00 343.50 113.50 6504.00
1992 129.50 294.00 386.50 498.00 824.50 820.50 962.00 719.00 i 836.50 675.00 310.50 78.50 5815.50
1993 111.00 150.50 448.50 378.00 580.00 731.00 923.50 916.50 818.00 655.00 247.00 105.50 6064.50
1994 173.00 142.50 400.00 444.00 625.50 743.00 1077.50 931.00 820.00 530.00 101.00 63.50 6051.00
1995 203.50 316.50 289.00 377.50 609.00 740.50 977.50 961.00 835.00 642.50 445.50 229.00 6626.50
1996 179.00 299.50 425.00 477.50 630.50 828.00 1111.50 1041.50 823.50 586.00 313.00 202.50 6917.50
1997 206.50 245.00 399.50 470.50 747.50 776.50 1017.50 948.50 827.50 558.50 389.50 145.00 6732.00
1998 231.00 166.50 353.00 389.00 435.00 785.00 1027.50 1042.50 876.50 535.50 257.50 117.00 6216.00
1999 147.50 95.00 230.50 418.50 584.00 770.00 914.00 927.42 a 920.50 652.00 375.00 143.50 6177.92
2000 173.50 255.00 362.50 515.17 a 646.50 942.50 946.53 a 983.50 811.00 579.00 219.50 154.00 6588.71
2001 85.50 168.50 459.50 360.50 850.00 816.50 1049.50 1032.00 880.50 716.00 311.50 167.50 6897.50
2002 114.50 265.50 323.50 495.50 624.00 862.50 1098.00 1017.00 867.00 600.50 364.00 182.00 6814.00
2003 309.50 223.50 391.00 292.00 654.50 875.50 1132.00 982.50 922.00 696.00 229.50 170.50 6878.50
2004 178.50 215.00 562.50 531.00 678.00 0.00 z 1091.50 1006.00 832.00 587.50 283.50 200.00 6165.50
2005 138.50 293.00 415.50 417.50 645.50 712.50 1131.00 1075.50 769.00 606.50 326.50 139.50 h 6531.00
2006 181.00 242.50 168.50 424.00 724.37 a 939.11 b 703.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2679.47
Period of Record Statistics
MEAN 171.94 241.03 336.45 443.83 644.04 810.86 1036.45 989.91 851.88 626.58 316.93 163.61 6622.78
S.D. 60.38 64.76 82.48 76.56 88.59 77.06 73.12 55.54 69.18 71.66 76.22 58.62 301.86
SKEW 0.10 -0.48 0.32 -0.04 -0.26 -0.26 -0.51 -0.07 -0.61 0.18 0.20 0.06 -0.22
MAX 309.50 348.00 562.50 602.22 850.00 943.00 1155.50 1075.50 995.77 770.50 503.50 301.00 7133.39
MIN 37.00 95.00 168.50 285.00 424.18 610.80 861.50 883.00 623.00 469.00 101.00 46.00 6051.00
NO YRS 48 48 48 47 45 45 44 42 47 45 46 40 29