LAKE ARROWHEAD, CALIFORNIA

Monthly Total Growing Degree Days

(044671)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201111
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
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 820.00 559.00 325.00 264.00 69.50 2037.50
1942 58.50 37.50 115.00 188.00 395.50 691.50 1000.50 928.50 707.00 486.50 275.00 145.50 5029.00
1943 57.00 91.50 182.00 358.50 591.00 565.50 885.50 897.00 822.50 497.50 202.50 25.00 5175.50
1944 20.00 13.50 88.50 157.50 442.00 472.50 795.00 902.00 764.50 493.50 93.50 81.00 4323.50
1945 51.00 75.00 42.00 304.50 443.00 663.50 991.00 944.00 767.00 464.00 155.50 54.00 4954.50
1946 45.50 33.50 94.50 355.00 434.00 641.00 865.00 900.00 718.50 249.50 49.50 114.00 4500.00
1947 34.50 83.50 168.50 288.50 550.50 631.00 943.00 840.50 778.50 423.00 67.50 15.50 4824.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 814.50 856.50 733.50 425.50 165.00 48.00 3043.00
1949 0.00 8.50 54.50 343.50 387.00 716.00 876.00 817.00 802.50 404.00 330.00 57.00 4796.00
1950 49.50 132.00 180.00 390.00 473.00 650.50 920.00 922.50 609.50 564.00 300.50 213.50 5405.00
1951 71.50 114.00 196.50 247.00 434.50 625.50 929.00 835.50 785.00 173.50 o 129.00 23.50 4391.00
1952 10.00 26.00 43.50 195.50 541.50 487.00 887.50 911.00 763.00 622.50 93.00 12.00 4592.50
1953 116.00 74.00 145.00 221.50 220.50 521.50 950.50 841.00 763.50 434.00 250.50 66.50 4604.50
1954 38.00 159.00 92.00 346.50 571.50 585.50 940.50 740.00 750.50 506.50 214.50 27.50 4972.00
1955 6.00 40.50 124.00 157.00 357.50 574.50 766.00 899.00 757.00 545.00 175.00 87.00 4488.50
1956 104.00 18.50 200.97 b 179.50 392.00 691.50 813.50 783.50 840.50 370.50 169.00 73.00 4636.47
1957 9.50 139.00 155.50 217.00 273.00 702.50 863.00 822.00 675.00 292.50 65.00 54.00 4268.00
1958 26.50 94.00 24.00 238.00 519.00 592.50 799.00 915.00 762.50 561.00 171.00 178.50 4881.00
1959 90.50 19.50 216.50 360.50 327.50 713.50 976.50 819.50 638.50 558.00 179.00 80.00 4979.50
1960 3.00 28.00 277.50 322.00 439.50 810.50 918.00 897.50 803.50 430.00 112.50 38.00 5080.00
1961 62.50 81.50 143.50 294.00 316.50 743.28 a 957.00 859.50 624.50 447.00 90.00 a 14.50 4633.78
1962 0.00 z 33.00 49.00 409.50 296.00 640.50 839.50 927.50 800.00 487.50 241.00 89.50 4813.00
1963 19.00 210.00 89.00 123.00 451.50 480.00 861.50 846.50 756.00 491.00 130.50 36.00 4494.00
1964 16.00 19.50 80.00 168.00 346.50 575.50 894.00 875.50 708.00 646.00 92.00 75.50 4496.50
1965 53.00 100.50 64.50 206.50 342.00 477.50 835.00 861.50 550.00 640.50 198.00 46.50 4375.50
1966 12.00 10.00 233.50 344.50 478.50 660.00 872.50 911.00 724.50 475.00 174.50 41.50 4937.50
1967 41.50 72.00 137.00 17.00 402.00 541.50 968.00 989.50 690.50 524.00 261.00 10.50 4654.50
1968 25.50 139.00 142.00 238.00 443.50 677.00 856.50 754.00 712.50 454.00 133.50 45.50 4621.00
1969 47.50 3.50 d 112.00 252.00 518.00 599.50 892.00 1024.50 801.00 324.00 136.00 85.00 4795.00
1970 75.50 78.50 120.50 147.00 565.23 a 701.50 1015.00 1000.00 678.50 366.50 185.50 22.50 4956.23
1971 64.50 63.00 191.50 207.50 295.00 593.00 920.00 900.50 703.50 345.00 128.50 6.50 4418.50
1972 13.50 94.50 349.50 224.00 390.00 630.50 1003.00 858.50 624.00 274.50 42.00 23.50 4527.50
1973 7.50 7.00 7.50 198.50 580.00 775.50 882.00 853.50 667.00 407.00 135.50 48.50 4569.50
1974 12.50 16.00 110.50 230.00 487.50 795.50 877.50 835.97 a 812.50 398.00 116.00 24.80 a 4716.77
1975 71.00 38.00 77.00 51.50 412.00 632.00 870.50 845.50 753.00 354.00 140.00 28.50 4273.00
1976 59.50 32.00 104.00 153.00 509.00 648.50 871.00 732.50 598.00 384.50 218.00 24.80 a 4334.80
1977 9.50 82.50 40.00 318.00 201.00 723.00 905.50 913.00 677.50 519.00 221.00 148.50 4758.50
1978 21.50 32.00 176.50 144.00 467.00 753.00 909.50 852.50 637.00 540.50 89.50 3.00 4626.00
1979 6.50 12.50 72.50 230.50 478.50 773.50 895.50 802.00 822.50 450.00 70.50 85.00 4699.50
1980 37.50 75.00 28.00 270.50 251.50 619.00 983.50 0.00 z 704.50 0.00 z 208.50 138.50 3316.50
1981 65.00 59.00 61.50 332.00 429.50 850.86 a 900.50 986.00 719.00 287.00 193.00 88.50 4971.86
1982 7.00 75.50 48.50 175.00 418.50 564.00 803.00 870.50 627.50 296.50 30.50 27.00 3943.50
1983 53.00 46.50 74.00 56.00 455.00 573.50 833.50 849.40 a 731.00 356.00 131.00 49.50 4208.40
1984 60.50 38.50 172.50 223.50 677.00 645.00 0.00 z 907.00 772.50 291.00 84.50 0.50 3872.50
1985 9.00 49.50 81.00 0.00 z 448.98 a 766.03 a 945.00 877.00 514.00 386.98 a 104.00 41.50 4223.00
1986 84.00 92.50 215.00 250.00 498.00 751.20 e 808.00 988.00 472.50 313.00 174.00 26.50 4672.70
1987 26.50 50.50 57.00 408.62 a 424.50 727.50 763.50 872.50 714.50 496.00 82.50 34.50 4658.12
1988 23.00 72.00 189.50 249.00 455.50 636.00 903.50 849.50 705.00 618.50 179.50 36.00 4917.00
1989 12.00 66.00 263.00 507.50 486.00 695.50 969.50 807.00 708.00 376.00 189.00 59.00 5138.50
1990 45.50 29.50 150.50 296.00 380.50 729.00 930.50 824.50 732.50 537.00 177.50 19.00 4852.00
1991 15.50 133.00 20.50 251.50 354.50 549.50 850.00 842.00 771.50 539.50 188.00 20.50 4536.00
1992 11.00 59.50 66.50 403.50 562.50 612.50 825.00 941.50 782.00 487.50 91.50 0.00 4843.00
1993 3.00 10.50 204.50 347.50 535.00 659.50 762.50 843.50 726.50 413.00 113.50 32.50 4651.50
1994 95.50 12.50 178.00 287.00 442.00 842.50 948.50 1003.50 0.00 z 329.00 35.00 12.00 4185.50
1995 13.00 136.50 137.00 216.50 280.50 616.00 911.50 1003.00 794.00 514.00 328.00 122.00 5072.00
1996 81.00 152.50 171.50 393.50 563.50 755.50 1015.50 1002.50 731.50 424.00 147.00 31.00 5469.00
1997 29.00 43.00 310.00 0.00 z 0.00 z 0.00 z 0.00 z 949.00 770.00 397.00 213.00 22.50 2733.50
1998 73.37 a 0.00 l 96.50 0.00 z 209.50 557.50 1007.50 0.00 z 629.00 0.00 z 70.50 28.00 2671.87
1999 44.00 32.00 98.00 153.50 451.05 a 679.50 955.00 968.00 799.14 a 591.58 a 245.50 35.50 5052.77
2000 113.50 63.37 b 123.00 f 369.11 b 695.00 876.11 c 1018.87 a 969.04 d 697.50 376.65 a 105.52 a 126.98 e 5411.64
2001 35.98 c 31.50 d 124.00 l 177.00 f 800.26 d 668.00 f 911.50 998.41 b 719.42 d 519.25 a 171.11 c 0.00 c 4187.44
2002 41.50 36.00 43.00 j 218.50 179.50 s 792.50 1017.00 894.00 711.50 317.00 142.00 6.00 4176.00
2003 108.50 22.50 103.13 e 73.50 h 0.00 z 722.00 954.50 910.50 791.00 386.50 k 4.50 q 15.00 3627.13
2004 0.50 h 13.00 160.00 k 279.50 507.00 203.00 u 326.50 t 703.50 g 512.50 f 293.00 20.50 j 0.00 n 1092.50
2005 32.50 0.00 z 78.00 154.50 g 462.00 613.50 1009.00 883.50 615.54 b 393.50 198.50 73.50 4359.54
2006 16.00 82.00 7.46 d 105.00 588.50 797.50 993.50 839.00 673.00 320.00 221.50 15.50 4658.96
2007 10.13 e 49.50 194.78 a 273.00 0.00 z 743.50 0.00 z 992.00 625.00 309.00 f 193.50 g 19.00 2906.92
2008 2.50 9.00 n 86.44 e 133.00 j 190.00 o 212.00 v 96.00 z 471.00 p 434.00 m 125.00 u 113.50 p 2.00 t 88.94
2009 2.50 v 0.00 z 0.00 z 65.00 r 591.58 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 591.58
2010 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
2011 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
Period of Record Statistics
MEAN 39.98 61.02 125.70 252.42 447.42 663.42 904.51 887.60 713.53 436.35 157.64 51.57 4720.88
S.D. 31.07 44.70 74.76 98.04 116.71 95.80 70.09 68.57 77.75 100.81 70.46 44.89 303.33
SKEW 0.74 1.02 0.71 0.01 0.20 0.04 -0.15 0.08 -0.86 0.16 0.36 1.47 0.09
MAX 116.00 210.00 349.50 507.50 800.26 876.11 1018.87 1024.50 840.50 646.00 330.00 213.50 5469.00
MIN 0.00 3.50 7.46 17.00 201.00 472.50 762.50 732.50 472.50 249.50 30.50 0.00 3943.50
NO YRS 64 63 62 59 62 62 62 64 65 62 64 66 50