FT VALLEY, ARIZONA

Monthly Total Heating Degree Days

(023160)

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
1909 1114.85 d 1142.17 d 0.00 z 588.50 f 603.39 c 294.00 127.50 126.00 333.50 649.50 927.00 1393.50 6711.41
1910 1306.00 1127.50 820.00 690.00 439.50 260.00 84.00 102.50 269.00 656.00 816.00 1097.00 7667.50
1911 0.00 z 0.00 z 853.00 735.50 598.00 329.48 a 166.00 178.50 286.00 663.00 976.00 1425.48 a 6210.97
1912 1237.50 962.50 1114.00 930.00 588.50 290.50 215.00 198.50 490.86 a 745.00 885.52 a 1298.00 8955.88
1913 1455.50 1216.50 1243.50 780.50 589.50 386.00 188.00 149.00 387.50 708.00 869.50 1287.00 9260.50
1914 1167.00 1094.50 886.00 688.00 522.50 291.50 144.00 131.50 267.50 649.00 789.00 1302.00 7932.50
1915 1363.50 1121.50 1084.50 731.50 713.00 330.00 143.50 102.50 357.50 576.50 861.00 1142.50 8527.50
1916 1247.50 1004.50 885.00 706.00 593.00 261.00 109.50 196.73 e 340.00 c 719.00 943.50 1247.00 8252.73
1917 1335.50 1147.50 1266.57 c 891.00 737.00 268.00 66.50 123.00 264.00 528.50 790.00 918.00 8335.57
1918 1195.50 973.00 905.50 733.45 a 656.00 95.00 126.00 182.00 274.14 a 559.00 1009.50 1238.00 7947.09
1919 1282.00 1187.50 1127.37 a 692.00 459.50 243.00 95.50 109.00 295.00 810.00 924.50 1143.00 8368.37
1920 1118.00 969.00 1050.50 893.00 546.50 290.00 85.00 176.18 a 343.50 729.50 938.28 a 1229.00 8368.46
1921 1200.00 974.00 861.50 821.00 627.50 270.50 94.00 143.50 242.50 f 526.00 801.00 990.00 7309.00
1922 1370.41 b 1091.00 1038.50 a 901.50 544.50 194.50 61.00 89.50 232.00 626.00 1042.00 1101.00 8291.91
1923 1047.50 1152.50 1087.21 c 781.00 500.00 368.33 c 85.00 185.50 423.50 736.50 907.00 1142.50 8416.55
1924 1309.00 886.50 1127.00 827.00 494.00 199.00 107.00 97.00 310.00 688.50 854.50 1235.00 8134.50
1925 1361.50 945.00 914.00 706.03 a 430.50 282.86 b 82.00 196.00 382.50 b 655.00 965.36 b 1099.35 d 8020.10
1926 1244.00 956.00 922.50 711.00 563.50 199.50 140.61 c 128.50 296.00 516.50 804.50 1254.50 7737.11
1927 1067.50 908.50 1013.00 729.00 498.00 273.50 57.50 156.00 303.50 598.00 764.50 1264.50 7633.50
1928 1159.50 1077.50 884.00 743.50 447.00 260.00 88.50 143.50 258.00 602.50 921.00 1252.00 7837.00
1929 1273.50 1208.50 1041.00 824.50 515.50 255.00 55.00 128.00 278.00 605.50 926.00 984.50 8095.00
1930 1308.50 929.50 1025.07 a 622.50 680.00 220.50 116.50 144.00 345.50 712.00 1006.00 1209.00 8319.07
1931 1217.00 977.50 944.50 649.50 506.50 232.00 28.00 98.00 281.00 598.00 1019.00 1275.00 7826.00
1932 1451.00 1061.00 973.50 714.00 559.50 284.00 49.00 90.50 242.00 616.00 783.00 1325.00 8148.50
1933 1335.00 1295.00 970.00 842.00 712.50 215.00 30.00 9.00 194.50 520.00 850.50 1034.50 8008.00
1934 1101.50 800.50 736.00 622.22 c 393.00 371.50 51.50 100.50 332.00 552.50 879.50 1068.00 7008.72
1935 1226.50 1004.00 1074.00 740.00 674.50 228.00 126.50 135.50 299.00 665.50 998.00 1128.50 8300.00
1936 1189.50 1110.00 968.00 686.00 467.50 202.00 86.00 119.00 348.00 638.50 866.50 1125.00 7806.00
1937 1621.50 1133.00 1069.00 767.50 490.50 274.50 110.00 77.50 224.50 566.00 827.00 1061.50 8222.50
1938 1083.50 1088.50 1017.00 728.50 544.50 260.50 117.00 141.00 277.00 658.00 1021.00 1052.00 7988.50
1939 1184.50 1291.50 939.50 638.50 498.00 248.00 66.50 70.00 292.00 681.00 843.50 944.50 7697.50
1940 1147.00 1063.50 882.00 708.50 457.50 175.50 72.00 100.00 315.00 622.00 984.50 1054.00 7581.50
1941 1197.12 a 932.00 988.00 906.00 550.50 389.00 155.00 182.50 402.50 760.00 863.50 1158.00 8484.12
1942 1228.00 1188.50 1134.00 790.00 630.00 330.50 66.00 151.00 331.00 636.00 821.00 1037.00 8343.00
1943 1175.00 997.50 912.00 663.00 500.50 327.00 110.00 125.00 275.50 631.00 916.00 1228.00 7860.50
1944 1266.00 1155.00 1136.50 864.50 611.00 432.50 159.00 92.50 274.00 599.00 1048.50 1137.50 8776.00
1945 1264.50 994.50 1147.50 850.50 588.50 395.00 65.50 124.50 282.50 586.50 947.50 1265.00 8512.00
1946 1267.00 1089.00 950.50 658.50 609.50 258.50 95.00 121.00 277.00 698.00 1023.50 1038.50 8086.00
1947 1337.50 864.50 897.00 739.14 a 444.00 312.00 94.50 157.50 211.50 602.00 1085.50 1300.50 8045.64
1948 1122.00 1133.00 1192.50 690.00 505.50 278.00 93.50 130.50 264.00 621.50 1005.00 1167.50 8203.00
1949 1493.50 1269.50 1082.50 711.50 563.50 311.50 104.50 191.50 243.50 752.00 748.00 1296.00 8767.50
1950 1270.00 939.00 909.00 642.50 608.50 290.50 105.00 207.00 383.50 469.00 789.00 962.19 e 7575.19
1951 1181.00 1004.00 1032.50 729.00 545.50 341.50 32.00 168.00 310.50 663.00 978.00 1271.50 8256.50
1952 1345.00 1158.50 1179.50 744.50 500.50 294.00 142.00 118.00 280.00 491.50 1069.50 1317.00 8640.00
1953 1035.63 d 997.00 951.00 732.00 706.50 273.00 68.00 160.00 288.00 659.00 851.50 1216.00 7937.63
1954 1219.50 904.00 1046.00 633.50 476.00 289.50 55.00 155.50 265.50 542.50 b 807.86 b 1243.50 7638.36
1955 1394.00 1269.50 1011.00 822.50 585.00 328.50 163.00 105.50 315.00 540.50 950.00 1066.00 8550.50
1956 1051.50 1243.50 937.50 801.50 488.50 180.00 132.00 218.50 185.50 654.50 1037.50 1169.50 8100.00
1957 1174.50 867.00 902.00 800.00 661.00 261.50 116.50 146.00 317.50 667.50 1029.50 1016.50 7959.50
1958 1184.50 917.50 1144.50 815.00 434.00 223.50 105.50 66.50 306.00 593.50 956.00 991.50 7738.00
1959 1135.00 1164.50 947.50 673.00 579.50 209.00 45.00 172.50 337.00 618.50 922.50 1103.00 7907.00
1960 1392.50 1219.50 894.00 681.50 536.50 194.00 48.00 87.50 247.00 658.50 900.00 1176.00 8035.00
1961 1133.00 916.00 995.00 718.97 a 574.50 179.50 48.50 134.50 387.50 699.50 981.00 1248.50 8016.47
1962 1252.00 1007.00 1228.50 615.00 635.50 a 333.50 131.00 124.00 253.00 591.50 800.00 1097.50 8068.50
1963 1371.00 877.00 1011.00 809.00 475.00 370.00 38.00 126.00 284.00 541.00 875.00 1156.50 7933.50
1964 1343.00 1198.00 1159.00 843.50 571.50 336.00 63.00 162.50 351.50 512.50 1071.00 1181.50 8793.00
1965 1121.00 1060.50 1073.50 868.50 655.50 463.00 116.50 168.00 399.50 577.00 822.00 1187.00 8512.00
1966 1357.50 1228.50 986.00 694.00 455.50 282.00 81.50 96.00 280.00 625.50 862.50 1204.00 8153.00
1967 1214.00 895.50 849.40 a 847.50 b 593.50 387.00 72.50 140.00 320.50 585.50 807.50 1364.50 8077.40
1968 1280.82 a 925.00 944.00 810.00 570.00 267.50 109.50 259.00 369.00 613.00 905.50 1299.50 8352.82
1969 1061.50 1128.00 1163.50 729.50 490.00 323.50 75.00 78.50 286.50 740.00 915.00 1058.00 8049.00
1970 1198.00 883.00 1084.00 946.00 532.50 284.00 56.50 85.00 389.50 698.50 822.00 1216.00 8195.00
1971 1242.50 1062.00 952.50 804.50 651.00 276.00 53.50 117.50 367.50 795.50 970.50 1350.00 8643.00
1972 1136.50 955.00 760.50 709.50 556.00 287.00 76.50 182.50 370.50 691.50 1083.00 1350.50 8159.00
1973 1438.00 1092.50 1257.00 905.00 526.50 302.50 122.50 145.00 355.00 625.00 977.00 1129.50 8875.50
1974 1256.00 1054.00 861.00 781.00 484.50 145.56 c 121.50 160.00 308.50 623.00 927.50 1249.00 7971.56
1975 1192.50 1102.00 1028.00 913.00 639.50 381.00 101.35 e 200.00 303.50 685.50 952.00 1189.00 8687.35
1976 1182.50 938.50 1053.00 807.00 517.50 337.50 121.93 a 251.50 419.50 739.00 934.00 1258.00 8559.93
1977 1328.00 1049.00 1157.50 774.00 698.00 279.00 110.80 d 79.50 261.00 561.50 808.00 998.00 8104.30
1978 1133.50 982.00 0.00 z 701.50 566.50 253.50 89.00 152.00 318.00 507.50 900.00 1219.00 6822.50
1979 1337.50 1073.50 1000.00 742.50 554.00 259.00 85.50 191.00 239.50 546.00 989.50 1045.50 8063.50
1980 1117.50 1013.50 1045.50 758.00 630.50 253.00 65.50 93.50 246.00 606.50 826.00 949.00 7604.50
1981 1016.50 928.50 1003.00 621.00 535.00 171.00 188.00 107.50 274.00 672.00 799.00 998.50 7314.00
1982 1223.00 1006.00 975.50 719.50 509.00 294.00 120.50 68.00 263.50 673.00 911.00 1188.00 7951.00
1983 1123.50 954.50 916.50 906.50 565.00 312.50 48.50 100.50 183.00 561.50 924.00 1076.50 7672.50
1984 1132.50 1023.00 899.50 789.50 352.50 293.50 88.00 166.50 279.00 780.00 991.00 1183.50 7978.50
1985 1246.00 1065.00 996.50 645.50 511.00 168.50 99.50 124.50 432.00 594.00 966.72 a 1133.00 7982.22
1986 972.00 917.50 881.50 704.00 499.50 185.00 149.50 80.00 421.50 746.00 895.00 1128.50 7580.00
1987 1180.07 a 979.00 1092.00 640.00 509.50 196.00 206.00 177.50 344.50 495.50 920.00 1223.50 7963.57
1988 1190.50 0.00 z 951.50 708.50 569.50 216.00 61.50 70.00 m 0.00 z 471.50 922.00 1198.00 6289.00
1989 1283.50 966.00 760.50 534.00 458.50 248.00 70.00 194.00 335.00 636.50 882.50 1138.50 7507.00
1990 1262.50 1130.00 918.50 649.00 571.50 202.50 72.50 183.00 260.50 623.50 924.00 1369.50 8167.00
1991 1184.50 863.00 1125.50 816.00 616.50 405.50 131.50 125.50 302.00 566.00 905.50 1159.50 8201.00
1992 1268.50 960.50 927.50 626.00 506.50 339.00 173.50 163.00 312.50 545.00 1060.50 1352.00 8234.50
1993 1136.50 1019.41 a 876.00 701.50 526.50 323.50 170.00 156.00 356.50 647.00 987.50 1207.50 8107.91
1994 1114.00 1120.00 881.50 724.50 535.00 150.00 76.00 24.00 0.00 z 507.00 j 0.00 z 1068.50 5693.50
1995 1192.50 820.50 888.50 786.50 636.00 355.50 110.50 40.50 255.50 584.50 719.00 1093.50 7483.00
1996 1113.00 869.00 893.50 662.50 407.00 141.00 35.50 85.50 366.00 704.00 882.00 1028.00 7187.00
1997 1163.50 1033.50 859.00 769.00 389.00 299.50 111.00 107.00 196.50 663.00 860.50 1206.00 7657.50
1998 1066.00 1082.50 1012.00 868.00 609.00 344.00 47.00 66.00 276.50 676.00 893.00 1082.50 8022.50
1999 1056.50 861.50 832.50 819.60 e 531.00 257.68 b 103.50 140.00 316.00 579.18 a 757.00 1161.50 7415.96
2000 1043.67 a 867.50 920.50 617.50 386.00 149.48 a 64.58 a 85.50 232.00 614.00 1089.00 988.00 7057.73
2001 1234.00 1058.50 862.12 b 720.00 387.00 182.00 75.00 f 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4443.62
2002 0.00 z 0.00 z 0.00 z 0.00 z 260.50 m 143.00 17.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 160.50
2003 0.00 z 0.00 z 0.00 z 806.00 427.00 232.50 38.50 92.00 235.50 442.00 903.50 1083.00 4260.00
2004 1123.50 1078.50 714.00 704.00 444.00 205.00 69.50 131.50 311.50 661.00 935.50 1020.50 7398.50
2005 1036.00 896.50 901.00 701.00 423.50 276.00 47.00 109.00 284.00 563.00 789.00 1033.00 7059.00
2006 1087.50 900.50 1026.00 648.50 380.50 92.50 27.50 112.00 371.00 649.50 804.50 1079.50 7179.50
2007 1224.00 931.50 794.50 662.50 456.00 175.00 27.50 44.00 290.50 585.00 737.00 1227.50 7155.00
2008 1294.00 1011.00 933.00 720.50 591.50 229.50 53.00 75.00 301.00 613.50 790.00 1137.50 7749.50
2009 1076.00 1026.50 895.00 765.50 391.50 332.00 54.00 131.00 274.50 717.00 841.00 1353.15 a 7857.15
2010 1194.00 1052.50 1029.00 806.50 616.00 263.00 56.50 123.50 258.00 587.00 1003.00 1016.50 8005.50
2011 1203.00 1108.00 875.50 725.50 629.50 280.50 72.50 31.00 262.00 614.50 923.00 1253.00 7978.00
2012 1026.50 1027.00 915.50 649.00 462.50 166.00 54.50 56.50 284.50 402.00 j 817.50 b 985.00 f 5459.50
2013 1373.76 d 765.00 i 846.82 a 23.50 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 2220.58
Period of Record Statistics
MEAN 1215.61 1032.05 981.50 746.85 539.66 268.28 92.37 129.26 304.33 626.51 906.99 1162.58 8029.66
S.D. 116.66 114.88 117.82 84.66 84.70 72.42 42.33 47.24 57.79 75.42 88.75 115.07 437.59
SKEW 0.53 0.29 0.30 0.29 0.06 0.01 0.64 0.08 0.50 0.04 0.09 0.03 -0.04
MAX 1621.50 1295.00 1266.57 946.00 737.00 463.00 215.00 259.00 490.86 810.00 1089.00 1425.48 9260.50
MIN 972.00 800.50 714.00 534.00 352.50 92.50 17.50 9.00 183.00 442.00 719.00 918.00 7008.72
NO YRS 102 100 101 102 103 104 103 101 99 100 101 101 94