BRIGHT ANGEL RS, ARIZONA

Monthly Total Heating Degree Days

(021001)

Base Temperature = 65 F

File last updated on Apr 3, 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
1925 0.00 z 0.00 z 0.00 z 0.00 z 140.50 u 357.50 112.00 264.00 502.00 794.00 1186.50 1431.17 d 4647.17
1926 1619.20 c 719.00 j 1136.27 e 832.00 622.00 333.50 249.03 a 230.00 374.50 653.00 992.50 492.00 r 7042.00
1927 0.00 z 22.00 z 0.00 z 0.00 z 405.00 i 370.86 a 197.88 a 280.00 443.00 708.00 898.50 1354.50 4252.75
1928 1158.00 0.00 z 978.00 792.50 518.00 377.50 127.00 214.50 h 392.50 743.00 982.00 687.50 p 6068.50
1929 845.50 k 384.50 s 562.00 p 909.64 b 507.50 232.00 129.00 170.50 337.50 465.50 i 777.00 f 0.00 z 2286.14
1930 1055.50 h 559.50 l 757.00 i 657.78 c 718.50 207.50 155.00 189.00 360.00 b 695.00 709.00 j 229.00 y 2982.78
1931 445.50 u 762.00 i 788.00 f 673.33 c 504.78 a 198.75 b 59.00 145.00 300.50 597.55 b 1058.40 e 537.50 s 3537.32
1932 841.00 n 313.50 u 744.50 k 605.50 i 579.18 a 290.50 96.10 a 125.00 265.34 a 667.00 811.50 0.00 z 2834.63
1933 1354.59 c 760.00 k 503.50 p 907.24 a 720.15 e 173.79 a 63.60 b 155.53 b 221.90 a 431.00 f 655.00 f 162.00 z 3596.81
1934 1152.37 e 332.00 r 376.50 p 395.50 l 354.50 359.00 47.61 c 77.00 f 371.54 d 566.86 c 981.00 463.00 s 3832.87
1935 737.00 n 136.50 y 785.00 k 595.00 i 705.54 d 123.00 g 83.70 a 124.50 301.50 681.00 996.50 516.00 q 2892.74
1936 0.00 z 565.00 n 798.50 f 712.50 444.52 c 117.00 e 88.00 137.00 355.50 689.00 947.50 1179.60 b 4670.62
1937 1629.50 306.50 u 1172.46 c 879.83 a 484.52 d 316.50 195.00 0.00 z 0.00 z 567.50 838.50 1102.57 a 7186.38
1938 1146.00 1177.62 b 1126.50 820.18 b 590.07 b 320.50 123.50 110.50 274.00 641.00 1052.50 1165.50 8547.86
1939 1232.00 1384.44 a 1022.50 687.50 439.00 223.50 54.50 93.00 340.71 b 673.50 857.50 938.00 7946.16
1940 1144.00 1090.61 a 910.07 c 738.00 413.50 149.50 58.00 93.00 a 311.50 611.22 a 949.50 1063.50 7532.40
1941 1224.50 a 935.20 c 1039.03 b 924.00 551.80 a 331.00 128.50 147.25 a 368.50 732.38 c 840.50 1125.82 a 8348.48
1942 1116.00 d 1178.50 1083.40 b 729.50 502.00 139.00 60.50 144.00 302.00 638.00 803.79 a 1016.00 7712.69
1943 1142.87 a 912.69 b 747.00 h 0.00 z 350.50 h 293.50 97.00 172.00 298.00 650.50 782.50 1084.00 5433.06
1944 1103.50 1092.50 1052.45 a 857.22 c 484.00 352.50 109.50 102.50 251.50 576.00 968.00 1010.82 c 7960.49
1945 1057.00 946.50 1081.50 776.50 434.00 348.50 65.00 j 162.50 270.00 643.00 845.00 1118.50 7683.00
1946 1137.00 938.50 296.00 u 0.00 z 543.02 a 188.50 124.00 b 169.00 278.00 777.00 941.00 904.50 6000.52
1947 1149.50 792.00 824.00 629.50 416.90 b 291.00 114.00 184.50 210.00 609.00 1060.50 1155.00 7435.90
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 92.00 133.82 a 235.50 419.50 i 909.50 1098.00 2468.82
1949 1471.00 1216.00 997.50 552.93 a 544.00 332.00 195.00 212.50 282.00 668.10 b 510.00 1136.50 8117.53
1950 1192.50 863.50 880.50 528.50 569.00 251.50 141.50 214.93 a 389.50 442.00 674.48 a 791.00 6938.92
1951 1082.93 a 930.00 971.00 644.50 343.50 i 301.50 22.00 136.18 c 289.00 691.82 a 878.00 1145.50 7092.43
1952 1186.50 1055.00 1182.00 696.50 385.50 241.61 b 128.00 130.72 a 281.00 400.79 c 933.50 1106.00 7727.11
1953 879.50 924.00 867.50 699.50 694.40 a 233.00 66.50 176.50 286.50 596.00 702.00 1057.62 a 7183.02
1954 1051.86 b 722.62 b 990.00 468.00 426.25 a 194.00 k 98.00 67.50 j 292.00 563.68 a 711.00 1039.02 a 6362.43
1955 1211.50 1105.00 925.00 744.31 a 363.50 k 251.40 e 112.50 122.00 279.00 539.50 862.00 1116.50 7268.71
1956 1159.00 1149.00 895.00 768.00 497.00 229.50 141.50 212.50 203.50 501.00 i 845.00 967.50 7067.50
1957 1066.50 652.50 752.50 687.00 682.00 224.50 161.50 192.00 335.00 700.00 1045.00 971.00 7469.50
1958 1105.00 400.00 p 416.00 o 0.00 z 393.50 171.00 104.00 79.00 335.50 571.36 b 274.00 s 0.00 z 2759.36
1959 0.00 z 0.00 z 0.00 z 170.50 u 550.50 173.00 35.00 190.00 342.50 587.40 b 0.00 z 0.00 z 1878.40
1960 0.00 z 0.00 z 0.00 z 326.00 s 528.00 175.50 55.00 99.00 270.50 705.50 853.20 e 0.00 z 2686.70
1961 0.00 z 0.00 z 0.00 z 0.00 z 563.68 a 182.00 81.00 162.00 439.00 708.00 653.00 k 0.00 z 2135.68
1962 0.00 z 0.00 z 0.00 z 0.00 z 586.00 316.00 165.00 140.50 311.50 600.50 811.50 490.50 n 2931.00
1963 0.00 z 0.00 z 0.00 z 0.00 z 448.00 325.50 48.50 202.00 306.00 538.50 560.50 j 0.00 z 1868.50
1964 0.00 z 0.00 z 0.00 z 0.00 z 591.87 d 339.00 114.00 202.00 371.00 515.50 338.00 r 0.00 z 2133.37
1965 0.00 z 0.00 z 0.00 z 0.00 z 375.00 l 467.50 204.50 196.50 455.00 545.00 614.00 g 0.00 z 1868.50
1966 0.00 z 0.00 z 0.00 z 278.50 s 466.00 269.50 103.50 118.00 309.50 653.00 0.00 z 0.00 z 1919.50
1967 0.00 z 0.00 z 0.00 z 460.00 o 621.00 368.00 136.50 173.50 359.00 532.50 812.00 0.00 z 3002.50
1968 0.00 z 0.00 z 0.00 z 0.00 z 496.00 f 277.00 173.00 300.00 360.50 587.50 937.00 0.00 z 2635.00
1969 0.00 z 0.00 z 0.00 z 0.00 z 291.00 i 336.00 115.50 102.50 344.42 d 561.00 h 0.00 z 0.00 z 898.42
1970 0.00 z 0.00 z 0.00 z 0.00 z 234.50 m 297.50 107.00 121.50 406.07 b 746.00 871.15 d 0.00 z 2549.23
1971 0.00 z 0.00 z 0.00 z 412.00 q 684.00 283.93 b 142.94 d 186.00 358.50 785.91 d 0.00 z 0.00 z 2441.28
1972 0.00 z 0.00 z 0.00 z 551.50 i 486.70 a 188.50 g 27.50 119.19 b 302.00 0.00 z 0.00 z 0.00 z 935.39
1973 0.00 z 0.00 z 0.00 z 958.80 e 478.50 g 311.38 a 102.00 96.50 j 347.00 597.00 968.00 1122.20 a 4406.38
1974 1305.50 1078.50 916.50 817.00 461.00 130.86 a 159.65 a 147.77 a 312.41 a 632.00 917.07 a 1312.50 8190.76
1975 1169.50 1111.70 a 1124.00 1003.50 692.50 330.50 140.50 228.00 321.00 663.92 a 945.60 e 1066.00 8796.72
1976 1117.00 972.50 1098.00 812.00 534.23 a 300.50 121.93 a 179.00 390.00 737.00 841.00 1098.00 8201.17
1977 1235.00 957.00 1123.00 711.00 683.00 229.00 146.50 133.00 288.00 585.00 815.00 993.00 7898.50
1978 1196.08 a 1094.50 981.50 820.50 599.50 189.83 a 95.00 137.36 b 383.00 527.00 b 983.79 a 1289.50 8297.57
1979 1417.50 1144.00 1138.00 831.50 580.50 295.38 d 128.65 a 236.12 a 234.00 540.43 a 1067.59 a 1047.00 8660.67
1980 1116.50 1011.50 1196.48 e 0.00 z 716.50 278.04 b 142.50 211.46 c 322.50 658.23 a 0.00 z 977.00 6630.71
1981 1053.00 938.00 580.00 n 654.00 582.36 c 127.00 f 84.50 g 131.50 g 357.00 0.00 z 831.21 a 1035.50 5451.06
1982 1177.00 0.00 z 0.00 z 0.00 z 0.00 z 333.00 178.00 185.00 373.00 754.00 0.00 z 1242.00 4242.00
1983 1100.50 1000.50 1041.50 624.50 i 633.00 312.00 123.50 213.00 281.50 417.50 k 981.50 1133.50 6820.50
1984 1140.50 1060.50 988.50 847.00 367.00 301.00 131.50 198.00 310.50 856.00 948.00 1197.50 8346.00
1985 1275.00 1122.50 1039.50 677.00 493.00 189.50 112.00 134.00 440.50 651.50 1022.00 1057.00 8213.50
1986 954.50 965.50 881.00 772.00 315.00 m 160.00 j 115.00 n 83.00 l 299.50 m 765.00 888.00 1129.00 6355.00
1987 1211.00 1028.50 1108.00 696.67 c 546.50 253.00 167.00 208.00 334.50 556.50 966.00 0.00 z 7075.67
1988 1196.00 976.50 999.50 760.00 600.50 228.00 84.50 183.00 389.50 515.50 971.00 1160.50 8064.50
1989 1254.50 1040.50 806.00 528.50 470.00 218.50 55.50 181.00 307.00 659.00 853.50 1032.50 7406.50
1990 1188.50 1065.50 931.00 669.50 442.50 f 144.50 91.00 197.50 306.00 629.50 919.00 1282.00 7424.00
1991 1208.00 911.50 1145.00 822.50 617.00 333.50 105.50 129.00 351.00 567.50 916.50 1145.00 8252.00
1992 1163.00 1018.00 995.00 625.50 494.00 298.50 148.00 183.00 326.50 566.50 1037.00 1266.50 8121.50
1993 1230.50 1127.50 954.00 751.00 530.50 297.50 120.50 161.00 312.00 682.50 1015.50 1168.50 8351.00
1994 1101.00 1107.00 888.50 748.00 527.50 137.50 57.00 88.50 284.00 735.50 1059.00 1127.00 7860.50
1995 1232.50 854.50 995.00 843.00 653.00 347.59 a 139.00 62.50 289.00 609.00 726.00 1083.00 7834.09
1996 1111.50 921.00 919.00 683.00 346.74 d 135.50 28.50 57.00 353.00 696.98 a 880.00 1094.50 7226.72
1997 1157.00 1035.00 873.00 820.50 386.50 241.00 115.50 126.50 309.50 697.00 891.50 1168.50 7821.50
1998 1098.50 1142.50 1026.00 903.50 595.20 a 324.31 a 76.00 102.00 322.00 707.50 880.00 1071.00 8248.51
1999 1023.60 e 927.00 659.50 g 843.21 b 565.50 304.00 152.50 190.13 a 350.50 576.60 a 743.04 b 1136.67 a 6812.75
2000 1080.72 b 980.82 a 1020.42 a 578.57 b 332.22 a 134.50 36.00 108.00 228.50 714.00 912.50 f 0.00 z 5213.75
2001 1236.68 c 1045.52 c 967.95 b 755.17 a 388.57 b 159.00 94.00 138.50 250.00 562.50 925.18 b 0.00 z 6523.07
2002 1194.03 b 0.00 z 1018.50 603.00 436.50 92.50 30.00 84.50 308.00 712.00 871.50 1238.00 6588.53
2003 932.50 1038.00 1032.00 814.50 401.50 108.50 4.50 58.00 159.00 401.50 988.00 1105.50 7043.50
2004 1196.50 1189.50 754.00 0.00 z 0.00 z 104.00 50.00 101.50 323.50 724.50 1016.40 e 1088.50 6548.40
2005 1091.50 1024.50 1029.50 793.50 428.00 0.00 z 34.50 128.50 260.50 591.00 789.00 931.00 f 6170.50
2006 1145.50 935.50 1069.00 659.00 353.50 79.50 f 75.50 189.50 451.00 693.00 0.00 z 771.50 j 5571.50
2007 1302.00 0.00 z 0.00 z 402.50 n 221.00 n 122.40 e 27.50 74.50 261.00 437.00 h 584.00 g 1286.50 c 3073.90
2008 1345.00 836.00 h 720.00 g 348.00 o 373.00 k 179.50 54.00 80.00 304.00 613.00 0.00 z 1180.98 e 3756.48
2009 1103.50 1025.65 e 629.50 j 0.00 z 137.50 t 0.00 z 27.50 91.00 f 276.50 746.38 e 580.00 h 421.00 v 3179.54
2010 1222.12 e 1132.17 e 994.77 c 850.00 604.50 189.50 62.50 132.50 217.50 635.00 1036.20 e 1088.50 8165.26
2011 1181.74 b 1088.08 c 950.84 b 584.00 g 114.50 y 0.00 z 74.00 25.12 b 326.50 656.54 c 977.14 b 1262.96 d 6542.93
2012 1101.50 1133.07 a 930.00 a 688.39 b 410.75 c 138.50 101.78 a 95.00 314.00 596.50 879.00 1315.43 a 7703.93
2013 1303.00 1096.50 889.38 b 24.50 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 3288.88
Period of Record Statistics
MEAN 1179.10 1024.86 994.66 748.38 525.83 252.71 103.98 152.61 320.34 638.03 907.33 1122.07 7928.01
S.D. 128.82 124.37 105.40 112.47 104.13 82.61 48.95 53.13 60.66 86.87 111.28 114.55 460.16
SKEW 1.19 -0.33 -0.19 -0.18 0.10 -0.11 0.26 0.20 0.31 -0.28 -0.62 0.10 -0.37
MAX 1629.50 1384.44 1196.48 1003.50 720.15 467.50 249.03 300.00 502.00 856.00 1186.50 1431.17 8796.72
MIN 879.50 652.50 752.50 468.00 332.22 92.50 4.50 25.12 159.00 400.79 510.00 791.00 6938.92
NO YRS 65 55 54 57 69 78 85 80 86 79 68 58 33