YREKA, CALIFORNIA

Monthly Total Growing Degree Days

(049866)

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
1893 0.00 z 2.00 94.50 136.50 448.43 b 632.50 870.50 949.93 c 526.00 261.50 96.00 31.50 4049.36
1894 20.00 13.50 135.50 289.00 585.00 643.50 958.00 997.68 a 394.50 l 424.50 156.72 a 4.50 4227.91
1895 4.50 67.00 126.00 318.00 503.00 753.50 874.00 894.00 548.00 491.00 53.00 22.50 4654.50
1896 37.50 75.00 229.00 119.00 357.00 750.00 1071.50 916.50 621.50 410.00 91.00 32.00 4710.00
1897 4.50 29.50 32.50 365.50 688.50 642.00 871.50 993.03 a 608.50 387.00 96.00 26.50 4745.03
1898 0.00 61.50 102.00 347.50 475.50 701.00 956.00 994.00 670.50 352.00 75.00 4.50 4739.50
1899 15.50 41.00 112.00 285.00 369.50 689.00 982.50 766.50 751.50 282.50 171.00 13.50 4479.50
1900 50.50 56.50 280.50 253.97 a 504.00 794.00 947.50 776.50 564.50 291.00 155.50 36.00 4710.47
1901 0.50 52.50 141.50 233.00 520.50 615.50 918.50 1001.00 587.50 472.00 154.00 34.32 c 4730.82
1902 27.50 154.50 88.50 255.60 e 464.50 700.50 864.00 921.00 0.00 z 0.00 z 111.50 0.00 z 3587.60
1903 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
1904 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
1905 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
1906 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
1907 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
1908 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
1909 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
1910 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
1911 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
1912 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
1913 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
1914 8.50 j 39.50 272.00 318.00 604.50 681.00 1002.50 1014.00 588.50 410.50 73.50 0.00 5004.00
1915 11.00 26.96 a 193.00 356.00 393.00 682.50 1161.00 1344.50 736.50 395.52 b 75.00 29.00 5403.98
1916 0.50 137.23 a 208.50 311.50 380.78 a 668.00 816.33 a 906.00 647.50 316.20 a 41.00 5.50 4439.05
1917 0.00 9.00 45.00 218.00 345.50 621.00 1036.00 970.50 539.00 316.00 136.00 55.50 4291.50
1918 22.00 33.00 160.50 0.00 z 445.50 908.00 910.00 890.00 755.50 427.00 80.50 9.09 b 4641.09
1919 38.50 24.50 106.50 340.00 589.00 733.50 886.50 f 752.50 g 672.93 a 271.00 56.00 18.50 2850.43
1920 36.50 31.59 a 98.00 227.00 474.00 741.00 915.50 1013.00 706.03 a 292.50 86.00 15.00 4636.12
1921 11.50 61.00 201.50 304.14 a 453.63 a 750.50 918.00 877.00 493.00 359.00 72.50 3.00 4504.77
1922 0.00 0.00 52.70 a 165.00 476.00 740.36 b 960.00 798.50 652.00 218.72 d 14.00 t 0.00 z 4063.28
1923 13.00 f 25.00 152.00 247.50 b 350.50 l 446.50 g 931.03 a 923.28 a 718.00 303.00 73.89 c 0.60 e 3374.30
1924 20.50 70.50 65.62 a 354.00 993.00 860.50 998.50 953.50 666.96 b 320.33 a 48.00 l 7.50 5310.91
1925 61.50 44.07 a 51.50 177.93 a 353.00 634.50 1100.50 955.50 441.00 g 311.03 a 66.50 11.88 a 3767.92
1926 10.00 112.00 312.00 530.50 655.50 997.50 1089.00 728.00 h 634.44 c 0.00 z 173.00 f 19.50 4360.44
1927 33.50 32.50 114.18 a 248.00 452.50 772.00 1012.50 916.50 614.50 400.50 172.50 2.50 4771.68
1928 17.00 30.00 240.54 d 266.00 673.50 703.50 1041.50 938.00 702.50 419.02 a 93.50 4.00 5129.05
1929 3.00 16.00 174.50 193.00 519.00 671.00 987.50 1010.50 630.50 452.60 a 76.15 d 93.50 4827.25
1930 0.00 108.50 204.60 a 342.00 412.00 728.00 984.00 929.50 632.07 a 391.00 128.50 8.00 4868.17
1931 0.00 z 0.00 z 186.50 354.00 700.50 714.83 a 1120.00 1061.50 689.00 435.00 107.00 23.25 a 5391.58
1932 4.00 64.50 211.00 225.00 472.50 812.50 907.50 908.00 858.50 477.00 270.00 19.12 a 5229.62
1933 0.00 7.00 106.50 316.00 341.00 747.00 1131.00 1018.00 594.50 543.00 89.00 36.00 4929.00
1934 45.00 73.00 346.68 a 469.00 603.50 702.00 961.00 1045.50 736.00 437.50 168.50 11.00 5598.68
1935 2.00 61.50 155.50 282.00 499.50 723.50 902.00 1014.50 801.00 403.00 8.50 6.00 4859.00
1936 21.50 48.00 149.00 377.00 539.50 735.50 1013.50 998.50 709.00 524.50 63.50 31.50 5211.00
1937 0.00 a 4.00 145.50 232.50 510.50 686.50 1014.50 879.00 711.00 422.00 96.50 19.00 4721.00
1938 28.50 22.00 44.00 287.00 514.50 778.50 1024.55 a 952.50 792.00 0.00 z 22.50 f 32.00 4475.55
1939 17.00 22.96 c 235.27 c 445.38 d 603.93 d 789.00 e 1068.47 a 1074.09 d 746.90 a 348.50 f 44.50 g 91.00 5093.99
1940 50.00 78.00 187.07 b 331.50 642.00 867.86 b 904.88 b 1068.31 e 694.20 e 261.00 m 49.00 38.50 4911.31
1941 64.00 102.50 230.00 278.50 550.00 618.00 1048.00 889.00 600.50 361.00 179.50 46.00 4967.00
1942 25.83 a 7.00 93.00 243.00 366.00 600.00 1022.00 1016.00 745.50 512.69 e 0.00 z 30.50 4661.53
1943 11.33 e 64.52 e 169.93 d 0.00 z 0.00 z 495.00 f 1001.54 e 843.56 e 904.04 d 232.00 m 95.19 d 2.50 f 3090.10
1944 0.00 e 27.19 e 142.48 e 166.80 e 498.38 e 602.31 d 973.83 b 924.83 d 763.85 d 377.00 i 50.00 h 15.00 l 4099.67
1945 15.50 g 43.17 d 58.12 c 252.00 e 542.50 d 688.27 d 1059.17 d 976.50 c 739.00 499.50 98.00 54.00 5010.23
1946 10.00 20.00 98.00 317.50 537.50 628.50 1005.50 1023.50 654.00 318.50 56.50 33.50 4703.00
1947 7.00 83.50 216.50 333.50 663.50 631.55 a 866.50 851.00 724.00 391.50 49.00 5.50 4823.05
1948 6.00 29.50 33.50 118.00 353.50 659.00 827.00 785.50 571.50 325.50 40.00 0.00 3749.00
1949 0.00 27.50 78.50 386.50 548.50 732.00 961.50 868.00 711.50 293.50 203.50 5.68 a 4816.68
1950 4.59 d 61.00 97.00 253.50 497.00 683.00 1027.50 1000.00 731.00 409.50 143.50 73.50 4981.09
1951 4.50 47.50 105.00 431.00 473.50 799.50 990.00 945.00 787.00 336.50 78.50 6.50 5004.50
1952 5.50 27.00 78.50 344.00 526.50 587.00 1072.00 931.50 811.00 569.00 74.00 1.50 5027.50
1953 61.50 61.00 106.95 a 263.00 310.00 504.50 964.00 851.00 822.50 341.50 172.50 17.00 4475.45
1954 3.50 56.50 75.50 327.50 602.50 575.00 952.50 796.00 587.50 378.00 156.00 12.00 4522.50
1955 2.00 15.00 97.50 127.00 459.50 769.00 838.03 a 1013.00 399.50 j 472.00 90.00 42.50 3925.53
1956 33.00 3.00 125.50 332.00 528.50 640.50 1061.75 a 890.73 a 723.00 362.50 77.50 15.00 g 4777.98
1957 0.50 84.00 135.50 279.00 537.50 808.00 916.00 848.50 760.00 244.50 24.00 23.00 4660.50
1958 5.00 110.00 51.50 258.50 659.00 718.00 1052.50 1081.00 688.00 558.50 155.00 60.50 5397.50
1959 46.00 18.00 135.50 398.00 396.00 779.50 1085.52 a 965.50 624.50 486.00 93.00 3.10 a 5030.62
1960 26.00 27.00 254.72 a 263.79 a 427.00 864.50 1113.00 913.00 778.50 459.50 104.00 13.00 5244.01
1961 29.50 72.50 111.08 a 313.00 452.00 898.50 1026.50 1024.50 594.50 405.58 a 55.50 2.50 4985.67
1962 1.50 25.50 80.00 405.50 381.00 714.00 954.50 889.50 788.00 367.50 176.00 35.00 4818.00
1963 0.00 152.50 86.00 156.00 578.50 681.50 832.50 916.50 804.50 395.50 85.50 14.50 4703.50
1964 10.50 15.50 85.50 254.50 484.50 670.00 961.50 909.50 625.00 481.00 78.00 69.00 4644.50
1965 25.50 45.50 170.00 290.00 447.50 695.00 957.50 890.50 633.50 509.50 167.00 12.00 4843.50
1966 4.00 11.50 169.50 379.50 640.00 686.50 882.50 1010.50 724.00 419.50 164.00 23.50 5115.00
1967 15.00 32.00 90.00 57.00 528.50 743.00 1073.50 1076.50 816.00 371.00 175.00 1.00 4978.50
1968 6.50 125.00 156.00 238.50 456.50 720.50 1018.00 834.00 744.00 388.50 87.00 20.00 4794.50
1969 1.00 12.50 141.50 256.50 660.50 782.50 996.00 940.00 756.00 270.00 117.00 42.00 4975.50
1970 69.50 73.50 145.50 151.00 564.00 844.50 1069.50 1018.50 606.00 351.00 137.00 13.50 5043.50
1971 26.50 42.00 88.00 209.50 477.50 666.00 1022.50 1055.50 626.50 317.00 49.00 2.50 4582.50
1972 19.00 72.00 251.00 212.50 577.50 797.00 1070.00 995.50 623.00 392.50 39.50 14.00 5063.50
1973 24.00 48.00 61.00 299.00 666.50 796.50 1052.00 982.50 720.50 366.00 111.50 26.00 5153.50
1974 26.00 13.50 148.00 182.50 487.00 845.50 941.50 988.00 851.00 419.50 80.50 23.50 5006.50
1975 6.50 29.50 57.50 100.50 522.00 714.00 953.50 863.00 825.50 322.50 71.00 21.00 4486.50
1976 1.50 36.50 109.00 185.50 571.00 648.00 979.00 772.50 753.50 444.50 155.50 0.00 4656.50
1977 0.00 64.00 59.00 349.50 313.00 880.00 965.50 1069.50 688.50 399.50 91.50 22.50 4902.50
1978 27.50 68.00 251.50 208.50 457.00 745.00 983.00 923.00 536.50 513.00 74.00 4.50 4791.50
1979 9.50 45.00 198.50 247.50 565.50 766.00 978.50 899.00 792.00 496.00 77.00 32.00 5106.50
1980 32.50 90.00 82.50 324.00 480.50 589.50 1013.00 919.00 708.00 459.50 117.00 54.00 4869.50
1981 42.00 57.50 124.00 327.00 507.00 616.50 949.00 1037.00 765.50 315.00 148.00 45.50 4934.00
1982 2.50 55.50 68.00 206.00 548.00 723.00 909.50 938.50 574.50 342.00 40.50 12.00 4420.00
1983 20.00 53.50 129.50 183.50 552.00 640.50 800.00 945.50 654.50 429.50 102.00 23.50 4534.00
1984 15.50 46.50 187.50 223.00 518.00 669.00 1055.00 974.00 668.00 264.00 36.50 1.00 4658.00
1985 0.00 z 39.00 91.00 426.00 513.50 813.50 0.00 z 891.50 537.50 329.00 48.50 10.50 3700.00
1986 85.00 0.00 z 278.00 0.00 z 514.00 891.00 919.50 1079.00 544.50 426.00 108.50 3.50 4849.00
1987 12.00 41.00 118.00 447.00 629.50 0.00 z 864.50 0.00 z 0.00 z 601.00 132.50 53.00 2898.50
1988 4.50 102.50 161.00 333.00 408.00 674.50 1036.50 979.50 705.50 570.50 78.50 1.00 5055.00
1989 0.00 13.00 109.50 0.00 z 446.50 0.00 z 868.00 828.00 685.50 338.50 74.50 10.50 3374.00
1990 15.00 33.00 182.50 455.50 419.50 663.50 1015.00 910.50 740.50 370.50 29.50 6.00 4841.00
1991 19.50 117.00 69.00 208.00 376.00 615.00 1047.00 982.00 837.50 530.50 135.50 4.00 4941.00
1992 17.50 109.00 215.00 0.00 z 722.50 810.00 956.00 1008.00 694.50 448.00 82.50 4.00 5067.00
1993 0.00 15.00 206.00 200.50 499.50 585.00 738.50 846.50 0.00 z 407.50 43.00 15.00 3556.50
1994 19.00 22.00 216.50 327.00 562.50 707.50 1083.50 926.50 762.50 328.00 13.50 9.00 4977.50
1995 43.50 159.00 92.50 198.00 486.50 607.50 860.00 866.50 787.50 416.00 231.50 100.50 4849.00
1996 6.50 135.00 179.00 289.00 467.00 737.00 1091.00 992.00 650.00 386.50 122.00 42.50 5097.50
1997 44.50 26.50 206.00 262.00 659.00 665.00 929.50 953.00 681.00 337.00 112.00 7.50 4883.00
1998 20.50 15.00 159.50 234.50 325.50 682.00 1038.00 1016.00 791.50 330.50 41.50 0.00 4654.50
1999 11.50 18.00 88.50 236.50 492.00 666.50 906.75 a 872.50 751.00 449.50 189.00 0.00 4681.75
2000 10.00 64.50 119.00 375.00 484.50 814.66 a 924.00 978.00 664.00 356.50 31.50 1.00 4822.66
2001 12.00 17.50 195.00 217.76 a 684.00 711.00 977.50 1017.50 746.50 431.93 a 103.50 0.50 5114.69
2002 14.50 55.00 109.50 318.00 455.50 769.00 1065.00 891.50 706.50 332.50 60.50 14.00 4791.50
2003 40.50 21.50 144.00 129.00 469.00 788.00 1055.00 916.50 737.00 470.00 20.00 25.50 4816.00
2004 12.50 17.50 263.50 341.50 497.00 788.50 1051.50 1000.00 676.00 388.50 58.00 21.00 5115.50
2005 16.00 53.50 193.50 254.00 551.00 614.00 1095.00 1046.00 654.50 396.50 62.50 39.50 4976.00
2006 11.50 66.00 43.50 281.00 612.50 860.50 1133.50 941.50 725.50 385.50 128.00 34.62 a 5223.62
2007 0.00 40.50 213.00 318.00 584.50 766.00 1035.50 991.00 698.50 278.50 123.00 19.00 5067.50
2008 1.00 16.50 78.00 197.50 542.00 715.00 1023.00 985.50 745.50 409.00 123.50 6.50 4843.00
2009 14.00 44.00 100.00 273.50 620.50 746.00 1065.50 941.50 810.50 0.00 z 63.00 3.00 4681.50
2010 42.00 29.00 131.00 159.00 332.00 675.50 1053.50 953.00 696.50 455.00 98.50 53.50 4678.50
2011 18.50 25.50 67.00 171.00 324.00 605.69 a 911.00 974.78 d 812.40 e 342.55 a 58.00 16.02 a 4326.43
2012 9.50 36.00 89.50 310.00 542.50 657.00 976.50 1055.00 803.00 447.00 133.50 26.50 5086.00
2013 5.50 10.50 168.00 15.50 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 184.00
Period of Record Statistics
MEAN 17.62 48.89 140.74 275.16 511.18 718.30 983.43 950.94 697.59 395.44 98.77 21.79 4845.69
S.D. 17.88 35.79 66.91 87.62 107.08 85.99 82.04 83.76 85.16 79.03 49.47 21.19 277.77
SKEW 1.35 1.17 0.63 0.18 0.77 0.46 -0.35 0.65 -0.17 0.26 0.72 1.53 -0.52
MAX 85.00 159.00 346.68 530.50 993.00 997.50 1161.00 1344.50 904.04 601.00 270.00 100.50 5598.68
MIN 0.00 0.00 32.50 57.00 310.00 504.50 738.50 766.50 493.00 218.72 8.50 0.00 3749.00
NO YRS 104 108 110 104 107 105 107 106 103 101 102 104 81