CHEVELON RS, ARIZONA

Monthly Total Heating Degree Days

(021574)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 200503
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
1959 0.00 z 0.00 z 0.00 z 0.00 z 378.72 a 42.41 a 6.50 26.35 a 127.20 e 459.32 a 742.00 994.50 2777.00
1960 1197.78 b 1067.50 665.00 498.10 a 327.50 35.17 a 0.00 32.03 a 78.00 530.50 716.79 b 1109.00 6257.37
1961 1056.50 814.00 800.00 530.00 341.50 51.00 14.00 30.00 236.00 510.50 862.00 1087.50 6333.00
1962 1129.50 847.50 983.00 423.50 398.50 129.50 4.00 14.00 124.00 450.50 366.50 l 964.50 5468.50
1963 1146.50 700.50 821.00 594.50 255.00 110.69 a 1.00 34.50 113.04 b 190.50 l 350.00 r 1018.00 4794.73
1964 1144.00 1031.50 962.50 650.50 342.50 139.00 25.12 b 86.00 207.32 b 317.50 906.50 974.50 6786.94
1965 965.00 939.00 887.50 642.00 432.00 213.00 12.50 29.50 213.50 368.50 635.00 962.00 6299.50
1966 1140.00 1011.50 747.00 485.50 203.50 63.50 0.00 12.50 127.50 448.00 652.00 1025.00 5916.00
1967 1020.50 784.50 669.50 647.00 381.00 156.00 2.58 a 21.00 122.50 326.00 626.50 1191.50 5948.58
1968 1129.50 797.50 808.00 659.50 362.00 99.00 18.00 131.46 d 143.50 412.00 435.50 m 830.50 f 4560.46
1969 611.50 j 907.76 c 938.00 528.00 293.98 a 100.00 7.75 a 0.00 f 94.20 e 529.87 d 460.00 m 548.50 n 3399.56
1970 757.00 i 465.50 j 864.12 c 716.79 b 273.83 a 119.00 9.50 3.00 202.50 d 595.31 d 678.00 962.55 a 4424.61
1971 973.73 c 840.50 752.02 b 607.20 e 491.00 140.00 5.00 21.00 122.00 h 631.00 454.50 l 635.50 m 4461.45
1972 937.15 e 785.07 a 0.00 z 535.56 c 312.14 b 89.50 1.00 0.55 c 127.00 372.00 f 389.00 q 1135.50 3923.47
1973 1158.50 882.50 989.42 a 706.20 e 310.00 102.50 6.50 0.00 z 0.00 z 439.00 725.17 a 779.00 f 5319.79
1974 1171.44 e 856.80 c 349.50 k 498.00 0.00 z 43.00 22.50 4.00 172.50 0.00 z 0.00 z 580.00 m 2768.24
1975 980.52 d 868.00 a 863.41 d 704.42 d 351.50 f 104.00 g 6.31 d 25.32 a 174.81 d 0.00 z 0.00 z 0.00 z 3622.79
1976 0.00 z 0.00 z 0.00 z 629.48 a 345.50 132.00 15.00 34.50 191.50 529.50 734.48 a 778.50 g 2611.97
1977 1123.00 815.00 907.30 c 579.44 c 344.00 f 62.50 1.07 b 11.50 k 128.28 a 417.00 520.50 g 528.50 i 4033.59
1978 961.00 902.16 c 696.93 d 590.77 d 406.10 a 68.50 8.00 29.40 b 178.89 c 382.33 a 777.41 a 1153.64 c 6155.13
1979 1179.07 b 590.00 j 658.00 h 581.67 c 414.50 148.00 28.00 62.00 97.00 391.00 933.46 d 965.00 4799.70
1980 979.82 c 829.00 893.50 614.40 e 494.97 a 73.00 4.65 a 36.50 122.00 477.50 672.69 d 656.00 f 5198.03
1981 742.00 f 738.00 804.93 b 426.96 b 350.50 42.93 a 2.67 b 32.07 b 151.00 482.71 c 665.19 d 880.63 d 4577.60
1982 1059.00 851.00 806.50 569.50 408.50 163.50 30.50 16.00 139.50 552.00 798.50 1059.50 6454.00
1983 1033.00 842.50 819.00 747.50 403.00 156.50 5.50 34.00 90.50 463.50 809.50 930.00 6334.50
1984 1083.00 913.00 756.00 637.00 146.50 109.00 2.00 34.50 134.00 631.00 0.00 z 119.00 z 4446.00
1985 1069.50 a 951.50 828.00 507.00 308.50 80.00 16.00 10.50 261.00 468.00 851.00 1029.00 6380.00
1986 871.00 834.00 690.50 534.00 314.00 73.50 37.00 0.00 r 204.00 k 594.00 781.50 1040.50 5770.00
1987 1158.00 947.50 971.50 519.00 425.50 77.50 32.00 65.00 72.50 t 375.50 839.00 1121.00 6531.50
1988 1145.00 871.00 813.00 592.50 390.50 82.00 3.00 29.50 256.50 349.50 770.50 1157.00 6460.00
1989 1232.50 879.00 645.50 356.00 254.00 77.50 14.00 53.00 128.00 492.00 786.50 728.00 i 4918.00
1990 655.50 l 996.07 a 530.50 j 527.00 365.00 58.00 6.50 55.00 146.50 466.50 816.50 1210.00 4647.07
1991 1147.00 777.00 988.50 631.50 404.00 179.00 5.00 22.00 140.50 397.00 501.00 k 1092.00 5783.50
1992 1270.50 893.50 789.50 456.43 b 366.00 143.50 40.00 63.50 133.00 396.00 961.50 1178.50 6691.93
1993 996.00 869.50 764.00 563.50 310.50 121.03 a 14.00 44.00 183.00 510.50 876.21 a 1054.00 6306.24
1994 1008.50 979.00 774.50 571.50 381.50 42.00 9.00 2.50 117.50 545.00 902.50 968.50 6302.00
1995 1069.00 737.50 744.50 649.00 463.00 156.50 15.00 1.00 122.50 432.00 623.00 974.00 5987.00
1996 928.00 760.00 809.50 517.50 199.00 43.00 0.00 17.50 240.50 512.50 348.00 p 528.50 m 4027.50
1997 625.50 o 566.00 k 397.50 n 346.00 m 234.05 a 120.50 10.50 13.00 h 50.50 l 533.50 0.00 z 511.50 p 898.55
1998 113.00 z 318.00 s 262.50 t 286.00 r 232.50 n 169.66 a 1.50 k 3.50 65.00 i 268.00 q 286.00 r 636.00 l 173.16
1999 552.00 l 281.50 r 255.50 r 408.50 k 270.50 h 136.55 a 16.50 g 20.00 k 82.00 p 256.00 l 306.00 o 525.50 p 136.55
2000 293.00 v 239.00 t 152.50 z 344.50 g 215.28 d 34.00 2.00 4.00 i 109.00 278.00 n 522.00 n 346.50 s 360.28
2001 598.00 o 593.00 k 492.50 k 442.00 h 200.35 d 60.52 a 4.50 g 14.00 k 37.00 k 141.50 r 321.00 r 174.00 z 260.87
2002 0.00 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
2003 0.00 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
2004 0.00 z 269.50 t 113.50 w 282.50 o 153.50 l 0.00 z 12.00 60.50 208.50 572.00 0.00 z 0.00 z 853.00
2005 0.00 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 1076.98 868.25 820.43 573.74 339.58 101.05 11.11 32.71 153.96 471.90 774.75 1047.61 6307.48
S.D. 97.73 87.27 98.10 87.10 83.98 46.08 10.52 26.77 48.40 82.50 99.04 89.37 244.87
SKEW -0.14 0.33 0.17 -0.23 -0.34 0.32 1.20 1.57 0.69 0.07 0.10 0.19 0.17
MAX 1270.50 1067.50 989.42 747.50 494.97 213.00 40.00 131.46 261.00 631.00 961.50 1210.00 6786.94
MIN 871.00 700.50 645.50 356.00 146.50 34.00 0.00 0.55 78.00 317.50 623.00 880.63 5916.00
NO YRS 32 34 32 37 38 42 41 36 36 36 26 26 15