WALNUT CREEK, ARIZONA

Monthly Total Heating Degree Days

(029158)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201301
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
1915 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
1916 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
1917 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
1918 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
1919 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
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 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
1939 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
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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
1948 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
1949 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
1950 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
1951 0.00 z 0.00 z 0.00 z 178.00 r 278.00 159.00 1.00 0.00 z 6.00 z 352.00 688.50 952.00 2430.50
1952 982.00 805.50 821.50 458.00 224.00 119.50 10.50 1.50 81.00 0.00 z 760.50 918.00 5182.00
1953 711.97 a 659.56 a 651.50 479.00 420.00 90.00 0.00 9.00 67.00 398.00 608.57 b 892.28 a 4986.88
1954 928.45 a 576.00 724.00 354.50 172.00 101.38 a 0.00 16.50 66.50 305.00 560.50 900.00 4704.83
1955 1037.00 841.00 677.00 555.50 286.50 114.50 27.50 0.00 141.00 282.00 618.50 790.50 5371.00
1956 781.50 865.50 636.50 496.00 239.00 21.50 6.50 26.00 27.50 387.00 707.50 868.50 5063.00
1957 857.15 a 582.00 613.50 495.50 389.50 51.50 2.50 13.50 97.50 431.00 764.50 796.00 5094.15
1958 867.50 634.50 806.00 500.50 156.00 91.50 5.00 0.00 95.50 347.50 622.00 825.50 4951.50
1959 506.00 n 352.00 o 674.50 412.50 369.50 58.00 0.00 2.50 135.50 317.00 629.00 805.50 3404.00
1960 1063.50 844.50 544.00 439.00 257.00 12.00 1.00 0.50 57.50 415.50 654.00 911.50 5200.00
1961 839.00 657.50 685.50 415.34 a 298.00 49.00 0.00 3.50 111.50 421.00 714.50 984.50 5179.34
1962 945.50 733.50 833.00 344.50 379.00 103.00 2.00 3.00 35.50 360.00 564.00 808.50 5111.50
1963 983.50 601.50 755.00 549.50 264.50 114.50 0.00 0.00 21.00 261.50 596.50 865.00 5012.50
1964 992.50 843.07 a 792.50 535.00 323.50 110.00 0.00 3.50 75.50 221.00 785.00 893.50 5575.07
1965 797.50 723.00 736.00 519.00 396.50 178.00 0.00 10.50 150.00 284.50 576.00 909.00 5280.00
1966 0.00 z 851.00 616.50 405.00 197.50 71.00 0.00 0.00 a 34.14 a 381.00 612.00 944.35 d 4112.49
1967 856.50 675.00 0.00 z 603.00 291.50 133.50 0.00 0.00 39.00 284.00 579.00 1061.48 b 4522.98
1968 1015.50 624.00 650.50 510.50 292.43 a 77.50 0.50 62.00 101.50 353.00 677.50 1099.50 5464.43
1969 790.00 811.00 800.50 477.50 248.50 90.00 22.00 2.00 167.50 647.00 836.38 a 1040.57 a 5932.95
1970 1131.50 825.00 892.00 805.00 391.00 188.00 9.00 5.50 210.50 536.00 582.00 929.50 6505.00
1971 929.50 757.00 635.00 532.50 387.50 83.00 0.00 1.00 182.00 474.00 701.50 1016.00 5699.00
1972 937.50 717.00 473.50 429.00 239.00 30.00 0.00 5.00 68.00 370.00 762.50 985.00 5016.50
1973 955.50 721.00 805.00 512.00 153.00 51.00 2.50 2.50 83.79 a 328.50 687.00 933.50 5235.29
1974 943.00 741.00 569.50 435.56 c 164.00 11.00 0.50 4.00 93.00 376.50 716.00 984.00 5038.06
1975 923.50 783.50 735.50 637.00 277.00 44.00 0.00 9.00 50.00 364.00 758.08 d 875.50 5457.08
1976 849.00 671.00 702.50 529.00 190.00 61.50 1.50 11.50 100.50 427.50 608.50 911.50 5064.00
1977 916.00 682.50 754.00 398.50 362.00 36.00 0.00 0.00 86.38 a 275.00 585.00 724.00 4819.38
1978 816.50 704.00 532.50 477.50 275.00 37.00 20.50 31.00 87.50 249.50 657.50 997.50 4886.00
1979 1088.50 832.50 704.50 468.00 230.50 57.00 5.50 23.00 21.00 304.50 756.00 840.50 5331.50
1980 774.00 649.00 711.50 457.00 361.00 87.50 0.00 10.50 54.00 370.50 636.00 728.00 4839.00
1981 804.50 674.00 674.00 333.50 209.00 11.50 0.00 1.00 32.00 429.00 589.00 808.00 4565.50
1982 924.50 665.50 661.00 471.00 275.00 111.00 21.00 0.00 97.50 445.50 678.50 904.00 5254.50
1983 852.50 681.50 674.00 561.00 283.50 70.00 3.50 4.00 31.00 324.00 645.50 778.00 4908.50
1984 849.50 786.00 631.00 501.00 96.00 52.50 0.00 0.00 35.00 482.50 709.00 877.00 5019.50
1985 939.50 826.00 704.50 348.50 195.00 38.50 0.00 0.00 146.00 334.50 700.00 843.50 5076.00
1986 732.00 615.50 526.00 405.50 212.00 18.00 5.00 0.00 228.00 470.00 641.00 919.50 4772.50
1987 967.50 755.00 752.50 362.50 239.00 8.50 6.00 4.50 66.50 251.00 698.50 976.50 5088.00
1988 889.00 679.00 647.50 412.00 235.50 13.50 0.00 0.00 117.00 208.00 651.50 956.00 4809.00
1989 944.50 705.50 496.00 244.00 170.00 37.00 0.00 16.00 79.00 385.50 623.50 928.50 4629.50
1990 975.50 802.00 596.00 384.50 264.50 30.50 15.00 17.00 65.50 329.00 635.50 1122.00 5237.00
1991 853.50 599.00 743.50 460.50 305.50 100.00 0.00 0.00 32.00 264.00 639.00 900.50 4897.50
1992 925.00 654.00 642.50 308.00 147.50 46.50 2.50 15.50 16.00 249.50 756.50 955.50 4719.00
1993 801.00 705.50 518.50 342.50 141.00 53.50 1.50 1.00 92.00 334.50 729.00 917.00 4637.00
1994 845.00 738.50 552.50 410.00 266.50 5.50 r 0.00 0.00 28.00 423.00 794.00 863.50 4921.00
1995 869.00 549.00 612.50 457.50 341.00 81.00 1.00 0.00 28.50 286.00 474.50 857.00 4557.00
1996 847.50 599.00 577.50 314.50 121.50 16.00 0.00 0.00 95.50 393.00 630.50 813.50 4408.50
1997 882.50 720.00 536.00 440.50 106.00 77.50 2.00 0.50 15.00 399.00 675.50 987.50 4842.00
1998 854.00 799.00 677.50 582.00 355.00 151.00 0.50 3.50 102.00 396.50 653.00 843.50 5417.50
1999 763.50 615.50 564.50 516.50 211.00 78.50 0.00 1.50 27.50 283.00 530.50 874.95 b 4466.95
2000 771.00 647.00 590.00 285.50 89.00 11.50 0.50 1.50 26.00 353.00 802.50 776.03 a 4353.53
2001 934.00 749.50 523.50 402.50 83.50 5.00 0.00 0.00 2.59 a 213.79 b 586.67 c 925.50 4426.55
2002 882.00 656.00 641.50 297.50 201.50 4.00 0.00 0.00 24.50 349.50 582.00 907.00 4545.50
2003 651.00 0.00 z 580.50 512.00 162.00 22.00 0.00 0.00 4.50 134.00 666.50 858.00 3590.50
2004 853.00 823.00 414.00 418.00 171.00 28.50 3.00 19.00 82.00 369.00 690.00 829.50 4700.00
2005 771.50 653.50 573.00 432.50 171.50 32.50 0.00 0.00 86.50 304.00 565.50 817.00 4407.50
2006 855.50 662.50 710.50 426.00 151.50 13.00 0.00 0.00 128.50 396.00 603.50 901.00 4848.00
2007 962.50 652.50 531.50 365.00 164.50 0.00 z 0.00 0.00 78.50 331.50 524.00 922.00 4532.00
2008 919.50 692.50 597.50 435.50 299.50 78.50 0.00 0.00 26.00 298.08 e 546.50 883.50 4777.08
2009 784.00 699.50 608.50 446.50 95.00 84.00 0.00 8.50 26.00 425.50 608.00 1005.00 4790.50
2010 853.00 715.50 665.00 502.00 327.00 60.50 0.00 9.50 45.50 322.00 700.00 766.50 4966.50
2011 867.50 791.78 a 604.50 395.17 a 306.00 5.00 z 3.00 0.00 b 32.00 328.00 694.50 955.50 4977.95
2012 768.50 750.50 637.50 367.50 183.42 a 13.50 0.00 0.00 46.00 320.00 613.00 913.00 4612.92
2013 986.00 786.50 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 1772.50
Period of Record Statistics
MEAN 884.88 714.36 649.97 448.72 243.43 64.06 2.94 5.90 73.51 350.10 655.51 899.62 4991.54
S.D. 93.60 80.72 97.74 93.52 87.92 44.91 6.01 10.28 50.04 84.10 75.83 83.43 404.11
SKEW 0.16 0.11 0.14 0.73 0.11 0.75 2.63 3.20 1.00 0.53 0.18 0.27 1.13
MAX 1131.50 865.50 892.00 805.00 420.00 188.00 27.50 62.00 228.00 647.00 836.38 1122.00 6505.00
MIN 651.00 549.00 414.00 244.00 83.50 4.00 0.00 0.00 2.59 134.00 474.50 724.00 4353.53
NO YRS 60 60 60 61 62 59 62 61 61 61 62 62 53