ALTURAS RANGER STATION, CALIFORNIA

Monthly Total Growing Degree Days

(040161)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1905 0.00 z 0.00 z 0.00 z 0.00 z 327.10 b 573.00 927.00 829.50 520.50 182.00 16.00 0.00 3375.10
1906 3.50 10.00 0.00 z 232.50 318.00 496.00 954.50 841.50 526.50 283.50 74.00 15.00 3755.00
1907 2.00 98.00 27.00 261.00 389.00 476.50 770.50 691.50 496.00 433.50 46.00 12.00 3703.00
1908 4.50 19.50 53.50 234.00 226.50 482.50 927.50 780.50 541.00 208.50 84.50 0.00 3562.50
1909 17.00 9.50 35.50 144.00 301.00 602.50 708.00 763.50 525.00 290.00 98.50 0.00 3494.50
1910 2.50 5.50 166.50 270.50 476.50 589.00 903.00 714.50 473.50 291.00 73.50 5.00 3971.00
1911 0.00 0.00 75.50 157.00 259.00 600.00 868.00 712.00 355.50 215.00 31.50 3.50 3277.00
1912 12.00 19.50 23.50 77.00 348.00 577.50 768.50 726.50 470.50 161.50 78.00 4.00 3266.50
1913 3.50 0.00 38.50 186.00 436.00 555.00 795.00 851.50 596.00 281.50 80.00 2.50 3825.50
1914 18.50 13.00 148.00 241.00 506.50 597.50 873.50 859.00 499.50 294.00 65.50 0.00 4116.00
1915 3.00 6.50 107.00 278.00 320.50 589.50 821.50 905.72 a 512.00 300.50 50.00 31.50 3925.72
1916 2.00 59.00 140.50 223.50 258.50 551.50 731.00 731.00 551.00 206.50 17.00 0.50 3472.00
1917 0.00 1.50 7.50 110.50 290.00 579.00 970.50 902.00 573.00 374.00 92.50 35.50 3936.00
1918 12.00 8.00 84.00 167.50 346.00 788.00 796.50 708.50 611.50 325.50 28.00 5.50 3881.00
1919 10.00 6.00 43.50 262.50 506.50 573.50 900.00 804.00 499.00 147.00 40.50 0.00 z 3792.50
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 0.00 z 0.00 z 0.00 z 0.00 z 340.50 j 564.11 b 890.22 a 777.00 341.90 a 121.93 a 36.00 0.00 b 2731.15
1932 0.00 0.00 19.63 a 71.50 246.45 a 575.00 764.00 746.00 592.24 a 224.00 80.17 a 0.00 3319.00
1933 0.00 0.00 a 24.50 179.00 221.50 629.00 914.50 821.00 427.50 373.00 63.00 18.60 a 3671.60
1934 32.03 a 64.62 b 303.80 a 372.22 c 528.03 a 581.50 894.50 890.00 579.50 225.50 31.50 6.50 4509.70
1935 1.00 22.50 21.50 173.00 381.82 a 649.00 758.50 764.87 e 394.50 i 215.21 e 5.56 c 3.74 b 2996.69
1936 0.00 a 6.21 a 88.02 c 269.40 e 443.54 e 632.68 b 891.25 a 785.91 d 507.78 c 287.94 e 50.17 a 0.00 b 3962.90
1937 0.00 m 0.00 b 23.50 p 114.00 458.50 613.50 889.50 741.50 591.00 266.00 56.50 12.00 3742.50
1938 20.00 0.50 9.50 192.50 390.50 654.50 821.50 677.00 531.00 191.00 8.50 22.00 3518.50
1939 8.50 0.00 96.00 272.50 434.50 524.50 813.00 779.50 500.50 222.50 38.00 32.50 3722.00
1940 29.00 29.50 117.00 202.00 532.00 720.50 734.70 a 795.00 486.50 306.00 34.00 2.77 c 3988.97
1941 0.00 6.00 127.50 170.50 399.50 489.60 e 801.00 694.50 379.50 176.00 133.00 32.00 3409.10
1942 3.62 a 8.00 20.50 113.50 269.00 514.50 799.50 741.50 605.50 307.00 28.00 4.00 3414.62
1943 1.00 4.48 c 50.50 231.00 283.00 377.59 a 764.00 586.00 609.50 234.00 44.50 4.00 3189.57
1944 0.00 7.00 33.50 96.00 327.00 387.00 734.00 624.50 492.50 308.00 25.00 6.00 3040.50
1945 8.00 8.50 22.00 151.50 367.50 527.00 838.50 724.00 435.50 379.00 40.00 14.50 3516.00
1946 5.50 5.50 47.00 250.50 399.50 516.00 800.50 804.00 453.50 125.50 28.50 5.00 3441.00
1947 0.50 19.50 114.18 a 223.50 530.50 495.50 708.50 682.50 519.50 294.50 26.00 4.00 3618.68
1948 14.00 5.70 a 12.50 79.00 284.50 551.50 677.50 654.00 457.00 258.00 13.50 0.00 3007.20
1949 0.00 0.00 24.28 a 233.57 b 423.00 563.00 770.00 694.00 573.50 195.50 172.50 b 3.00 3652.35
1950 8.55 b 37.00 48.50 162.50 386.00 553.00 869.00 807.55 a 574.44 c 338.00 120.50 45.00 3950.05
1951 1.00 22.00 50.00 276.50 357.50 635.50 788.50 794.50 608.00 178.54 d 39.50 f 5.68 a 3717.72
1952 0.00 2.23 c 17.00 226.15 d 436.14 b 496.73 d 882.00 766.22 a 608.79 a 342.50 f 28.00 4.17 e 3467.44
1953 10.00 i 16.00 g 42.92 e 108.00 f 200.39 c 406.61 b 642.50 f 490.00 j 665.00 c 261.29 c 114.00 2.50 j 1690.21
1954 0.00 b 40.38 b 25.12 b 250.56 c 491.87 a 513.00 801.00 632.50 466.07 b 268.00 147.00 2.00 3637.50
1955 0.00 b 3.50 47.00 39.00 j 350.00 622.50 698.00 819.50 567.50 227.50 i 41.54 d 31.52 a 3181.06
1956 1.00 0.00 78.00 i 223.50 420.00 576.50 874.00 695.00 537.50 277.00 55.50 1.03 a 3661.03
1957 0.00 d 23.00 94.00 141.50 368.00 668.00 772.50 677.50 631.00 180.00 9.00 2.00 3566.50
1958 0.00 61.50 11.00 154.50 529.50 588.50 869.00 895.50 572.50 377.00 112.00 53.00 4224.00
1959 36.50 2.00 86.00 257.50 298.50 675.50 887.00 743.00 440.00 297.50 39.50 8.50 3771.50
1960 3.00 6.50 139.50 a 163.50 283.50 723.50 923.50 705.00 603.50 302.50 34.00 13.00 3901.00
1961 15.50 36.00 50.00 204.00 328.08 a 757.00 840.00 858.50 456.00 302.50 39.50 1.00 3888.08
1962 0.00 0.50 37.00 275.50 322.50 598.50 792.00 732.50 603.00 289.50 128.50 49.00 3828.50
1963 0.00 138.50 47.00 77.50 485.00 547.50 669.00 699.50 604.00 313.00 70.50 5.50 3657.00
1964 7.00 0.00 36.50 127.00 304.00 464.50 801.00 710.00 460.00 346.00 38.00 29.00 3323.00
1965 9.00 18.00 36.50 202.50 317.00 521.50 565.50 f 718.00 445.50 348.48 b 76.80 e 0.00 c 2693.28
1966 1.50 0.00 121.50 240.50 537.00 562.50 718.88 b 854.00 571.73 d 266.27 c 70.00 i 17.50 g 3873.88
1967 0.00 c 10.50 38.50 8.57 b 391.50 589.50 886.00 933.00 655.50 252.00 135.00 0.00 3900.07
1968 0.00 57.00 108.50 164.00 370.50 630.00 914.00 657.50 547.50 294.00 52.50 7.50 3803.00
1969 5.50 0.50 66.00 157.50 513.50 643.00 823.00 740.00 571.50 104.00 48.00 13.00 3685.50
1970 27.00 30.00 33.50 34.00 407.50 625.00 814.00 749.00 427.00 190.00 56.50 1.50 3395.00
1971 15.00 19.00 23.00 111.00 265.00 441.50 809.00 864.00 387.00 194.50 15.00 0.00 3144.00
1972 0.00 15.50 123.00 104.50 365.50 606.00 804.50 771.00 409.50 211.50 j 5.19 d 7.00 3211.69
1973 12.00 1.00 19.00 120.50 432.50 553.00 835.00 713.00 a 461.50 180.66 b 50.50 7.50 q 3378.66
1974 17.57 a 9.00 49.00 86.50 287.50 621.00 714.00 728.00 564.50 0.00 z 62.78 c 3.50 k 3139.84
1975 0.00 b 1.50 10.00 16.00 281.00 503.00 788.50 636.50 575.50 218.00 27.22 c 3.50 3060.72
1976 5.50 2.50 55.50 99.00 381.00 450.50 785.33 d 578.50 543.50 112.00 o 94.00 0.00 2995.33
1977 0.00 27.50 14.50 186.50 136.00 698.50 768.50 815.00 463.00 281.50 35.50 21.00 3447.50
1978 11.00 11.00 139.00 106.50 228.50 507.50 743.50 730.00 399.50 327.00 28.00 2.07 a 3233.57
1979 0.00 9.00 69.50 123.50 349.00 546.11 c 771.50 674.00 571.00 226.50 g 6.00 18.37 d 3137.98
1980 9.96 c 31.07 a 9.00 n 176.00 304.50 407.50 782.50 676.00 502.00 294.00 80.50 15.00 3279.04
1981 19.50 31.11 a 24.50 171.00 330.87 e 606.43 b 787.00 812.00 557.00 180.50 99.00 32.03 a 3650.94
1982 0.00 22.50 12.00 70.00 319.82 a 531.50 713.00 763.00 427.50 183.50 0.50 4.00 3047.32
1983 2.50 28.00 41.00 69.00 320.50 479.00 631.00 796.00 505.50 277.00 71.50 4.00 3225.00
1984 0.00 3.00 61.50 95.00 343.00 450.50 877.50 767.00 490.00 144.50 19.50 0.00 3251.50
1985 0.00 1.50 10.00 225.50 318.50 681.50 896.50 672.00 368.50 166.50 18.00 0.00 3358.50
1986 37.00 64.50 137.50 147.50 345.00 703.39 b 722.50 851.00 353.00 225.50 28.50 2.50 3617.89
1987 0.00 15.00 36.00 253.50 474.82 a 661.00 685.50 775.50 561.50 392.00 90.50 31.00 3976.32
1988 2.50 30.50 58.00 201.50 306.00 588.00 925.00 821.00 508.50 379.00 58.50 1.00 3879.50
1989 0.00 1.50 79.00 229.50 297.50 615.50 736.00 683.00 494.50 198.50 19.50 6.00 3360.50
1990 7.00 4.00 74.50 274.00 286.50 513.50 864.50 783.00 562.00 235.50 29.00 0.00 3633.50
1991 0.00 34.00 8.50 88.50 214.50 450.00 756.50 792.50 610.00 350.00 88.50 1.00 3394.00
1992 7.00 30.50 80.00 243.00 544.00 699.00 773.50 796.00 526.00 257.00 42.50 0.00 3998.50
1993 0.00 0.00 118.50 109.50 391.00 451.00 574.00 701.00 522.50 270.00 9.00 3.00 3149.50
1994 5.00 1.00 101.00 177.00 443.50 573.00 920.00 753.00 569.50 171.50 5.50 0.00 3720.00
1995 19.50 83.50 50.50 102.50 338.50 496.00 778.00 724.50 589.50 220.00 131.50 46.50 3580.50
1996 8.00 67.50 69.75 a 188.50 353.50 633.50 928.00 790.50 474.50 270.50 68.50 28.50 3881.25
1997 20.50 7.50 111.50 159.50 494.00 563.00 780.00 741.50 531.50 191.00 65.50 0.00 3665.50
1998 20.50 2.50 78.00 130.50 224.50 520.00 875.50 830.00 625.00 182.00 17.50 3.50 3509.50
1999 2.00 12.50 27.26 b 147.41 a 324.50 529.50 743.00 726.00 551.50 288.30 a 125.69 a 0.00 3477.66
2000 5.50 7.50 33.58 a 231.11 c 393.24 d 673.50 759.50 750.89 d 483.50 207.04 c 11.50 0.00 b 3556.86
2001 0.00 b 5.50 107.00 142.78 c 515.00 600.00 808.50 814.00 560.50 309.50 54.83 a 2.50 3920.11
2002 12.00 20.50 51.00 226.50 381.50 653.50 950.50 746.50 554.00 188.50 46.00 20.00 3850.50
2003 55.50 9.00 99.50 74.00 412.76 d 690.00 939.00 780.34 b 589.50 381.96 c 10.80 e 0.00 z 4042.37
2004 5.50 0.50 158.00 200.00 381.50 628.50 872.00 802.50 463.33 c 231.00 21.00 4.00 g 3763.83
2005 2.38 e 3.00 56.00 113.65 d 348.50 466.50 668.50 i 797.00 405.58 d 125.00 k 12.00 h 16.00 2208.62
2006 3.50 f 3.65 e 7.50 148.50 427.50 681.00 924.00 695.50 136.00 v 0.00 z 40.50 q 8.94 e 2896.59
2007 0.00 e 10.50 f 76.43 b 150.50 f 271.00 i 379.00 g 612.00 h 415.50 m 276.50 k 75.20 d 30.50 g 5.00 h 151.63
2008 0.00 f 0.00 h 0.00 z 81.35 d 273.50 i 422.50 h 643.50 h 137.50 z 435.50 i 232.50 g 20.50 z 0.00 j 81.35
2009 0.50 k 3.00 j 28.00 j 96.50 g 219.00 n 491.50 f 621.50 h 482.50 l 434.50 i 114.00 j 32.50 k 0.00 u 0.00
2010 2.00 q 4.50 h 34.00 h 36.50 h 104.50 k 380.50 h 600.00 j 552.00 i 364.50 i 182.50 k 53.00 j 5.00 j 0.00
2011 1.50 k 1.00 h 20.00 h 28.00 i 167.50 i 363.00 h 378.00 p 605.00 h 491.50 h 140.00 j 15.00 i 1.00 j 0.00
2012 0.00 k 3.00 i 19.50 i 140.50 i 281.00 i 365.00 i 581.00 j 638.50 h 413.50 k 315.17 a 82.00 14.47 a 411.63
2013 5.34 b 1.50 78.00 2.50 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 84.84
Period of Record Statistics
MEAN 7.24 17.44 63.99 170.66 365.43 572.18 813.92 757.15 519.23 255.02 54.04 10.00 3610.79
S.D. 10.22 24.12 48.89 71.14 89.85 84.04 80.96 71.57 73.55 73.41 37.99 13.08 310.07
SKEW 2.15 2.47 1.68 0.02 0.16 0.00 -0.22 0.04 -0.43 0.02 0.89 1.59 0.13
MAX 55.50 138.50 303.80 372.22 544.00 788.00 970.50 933.00 665.00 433.50 172.50 53.00 4509.70
MIN 0.00 0.00 7.50 8.57 136.00 377.59 574.00 578.50 341.90 75.20 0.50 0.00 3007.20
NO YRS 88 89 87 88 90 91 88 90 89 85 88 85 68