GRANITE REEF DAM, ARIZONA

Monthly Total Growing Degree Days

(023621)

Base Temperature = 40 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 197909
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
1893 472.50 515.00 0.00 z 0.00 z 0.00 z 751.50 n 1648.50 1280.00 f 1325.00 1111.00 672.50 444.50 f 5744.50
1894 345.00 342.00 650.00 932.50 1159.50 1234.50 0.00 z 1540.50 1287.00 1012.84 b 0.00 z 0.00 z 8503.84
1895 0.00 z 467.00 654.50 860.50 0.00 z 1147.50 0.00 z 1389.46 c 1302.00 1129.50 0.00 z 0.00 z 6950.46
1896 0.00 z 0.00 z 0.00 z 742.00 999.00 1244.50 1398.62 a 1514.00 1338.60 e 1107.73 a 0.00 z 0.00 z 8344.45
1897 0.00 z 0.00 z 363.00 f 871.00 1167.15 a 1289.50 1527.50 1031.50 j 1225.50 1006.00 784.62 d 400.86 b 8272.13
1898 267.50 543.00 619.00 907.00 1061.50 1312.24 a 1511.50 0.00 z 0.00 z 932.67 b 596.50 379.50 8130.41
1899 339.00 361.00 0.00 z 0.00 z 0.00 z 0.00 z 1473.65 d 1365.50 1346.50 914.00 751.50 541.95 c 7093.09
1900 497.79 e 430.50 755.50 787.00 1061.00 1268.00 1550.00 1366.00 1131.00 996.50 673.50 443.50 9999.00
1901 397.00 423.00 586.50 760.34 a 1079.50 1251.00 1639.50 1545.00 1230.00 1016.50 754.50 366.32 a 9999.00
1902 420.50 441.50 559.00 506.00 m 1102.00 1363.00 1458.50 1523.43 c 1298.00 1100.00 738.00 502.50 9999.00
1903 444.50 325.00 589.00 783.50 1015.50 1284.83 a 1551.00 1613.50 1248.62 a 1001.82 a 712.24 a 483.50 9999.00
1904 371.45 c 598.50 760.50 891.00 1215.72 a 437.00 t 762.00 o 1511.50 1262.50 1029.00 599.50 f 473.00 8113.16
1905 511.50 495.50 653.50 783.50 955.00 1317.50 1554.00 1601.50 1368.50 1024.00 661.50 327.50 9999.00
1906 411.50 543.00 665.50 768.00 1039.50 1341.00 1624.50 1455.00 1287.50 1003.50 564.50 0.00 z 9999.00
1907 0.00 z 0.00 z 0.00 z 199.50 w 1013.50 1228.00 1569.00 1490.50 1299.00 995.50 628.50 423.50 8647.50
1908 441.00 436.00 673.00 849.00 970.50 1261.00 1515.50 1489.50 1260.00 846.50 655.00 433.00 9999.00
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 510.00 u 1485.50 1259.50 995.50 635.00 308.00 4683.50
1910 394.00 404.50 812.00 938.50 1208.00 1341.00 1536.50 1556.00 1398.00 1043.50 633.00 472.00 9999.00
1911 504.50 368.50 726.00 806.00 1031.00 1322.00 1442.00 1495.50 1334.00 958.00 550.50 225.00 9999.00
1912 393.00 456.50 578.15 a 687.00 1037.47 a 1383.50 1428.50 1438.50 1167.50 910.50 632.00 311.00 9999.00
1913 272.00 356.00 529.00 824.50 1024.50 1233.50 1456.50 1497.50 1270.00 925.50 674.50 359.00 9999.00
1914 468.00 421.00 716.62 a 864.00 1095.00 1335.50 1523.50 1519.00 1354.50 975.50 727.50 332.00 9999.00
1915 306.00 388.00 552.50 787.00 964.50 1266.50 1478.50 1519.00 1213.00 1077.50 637.50 b 397.50 9999.00
1916 358.50 580.50 754.50 855.50 1027.00 1270.00 1508.00 1441.50 1220.50 873.68 a 553.00 270.00 9999.00
1917 320.50 387.00 503.50 741.00 934.50 1320.50 1559.00 1450.00 1300.00 1064.00 678.50 493.50 9999.00
1918 313.00 462.50 703.00 802.50 987.00 572.00 s 1588.50 994.00 j 961.00 h 1034.50 583.50 326.50 6801.00
1919 358.50 295.00 528.00 868.00 1099.50 1347.00 1498.50 1515.00 1280.50 876.00 584.50 489.00 9999.00
1920 465.00 503.50 572.50 699.50 1084.50 1302.50 1571.00 1482.50 1221.00 850.00 592.00 326.00 9999.00
1921 400.50 418.00 g 766.50 795.54 b 921.00 1290.50 1523.50 1472.50 1303.50 1099.50 682.50 527.50 9999.00
1922 312.00 408.50 489.00 679.00 1111.00 1349.00 1570.00 1554.00 1019.00 g 1009.50 493.50 488.00 9463.50
1923 515.50 463.50 579.00 799.50 1137.00 1207.50 1525.00 1472.00 1234.50 905.00 618.50 377.00 9999.00
1924 326.00 519.50 488.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 353.83 b 1687.83
1925 331.50 523.25 d 771.00 830.50 1183.17 a 890.50 j 1191.00 j 1665.50 1247.50 894.87 a 568.97 a 350.00 8366.25
1926 248.50 412.50 539.00 f 807.93 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 451.10 b 1920.03
1927 528.55 a 497.00 618.50 806.50 1136.00 1326.50 1616.50 1526.50 1301.00 477.00 o 722.59 a 368.00 9999.00
1928 413.85 a 444.50 716.00 785.00 1204.50 1322.00 1582.50 1490.50 1352.50 0.00 z 617.07 a 293.50 9999.00
1929 200.50 267.50 496.50 305.00 n 1065.37 a 1128.00 1556.72 a 1528.41 c 1322.59 a 0.00 z 0.00 z 502.64 c 8068.22
1930 338.50 467.50 f 631.50 895.50 933.50 1305.00 1501.95 a 791.50 m 529.00 p 908.00 163.00 x 327.50 i 6513.95
1931 452.48 e 498.75 d 609.15 a 866.00 1119.00 1254.50 1582.00 1419.28 a 1284.00 949.50 336.50 m 224.00 j 9999.00
1932 93.00 p 369.50 418.50 h 745.00 982.18 a 990.50 g 1466.96 c 1453.38 a 1269.50 865.42 a 296.50 p 113.00 j 7151.95
1933 267.50 255.00 538.62 c 643.50 761.05 a 664.50 k 1562.29 b 1467.00 1253.00 0.00 z 603.75 b 346.00 7697.72
1934 135.50 w 563.00 887.63 a 995.00 1298.00 1250.50 1633.00 0.00 z 0.00 z 608.50 n 662.00 524.50 7813.63
1935 482.50 526.00 532.50 822.50 946.50 1370.00 1525.00 1454.00 1341.50 963.00 77.00 y 0.00 z 9963.50
1936 329.00 k 0.00 z 613.50 g 743.50 g 1209.00 a 1425.00 1582.50 1573.50 1324.14 a 0.00 z 0.00 z 119.00 u 7114.14
1937 162.50 f 450.50 679.00 812.50 1099.00 1005.50 f 1144.50 h 0.00 z 0.00 z 1063.82 a 328.50 n 562.43 c 4667.25
1938 483.00 493.50 591.50 861.50 1078.50 1315.00 1530.50 1537.00 1391.50 602.50 l 485.36 b 497.00 9999.00
1939 397.83 a 216.46 b 524.00 f 913.50 1140.50 1314.50 1609.50 1540.46 e 1279.50 972.00 418.00 o 601.40 a 9985.66
1940 497.00 449.50 726.50 869.00 1240.00 1435.50 1573.50 1542.50 1332.50 1020.00 307.50 m 509.50 9999.00
1941 448.00 484.30 a 567.50 654.50 1084.00 1221.00 1492.50 1426.50 1195.50 867.00 338.00 n 427.50 9868.30
1942 440.00 346.00 586.00 420.50 n 0.00 z 0.00 z 1596.00 1453.00 1277.00 951.50 474.50 j 461.50 7111.00
1943 385.50 527.50 660.50 892.00 1104.00 701.00 l 1560.50 1421.50 1287.00 978.50 687.12 d 432.50 9936.62
1944 349.50 373.00 523.50 683.04 b 1059.50 1178.00 1473.50 1523.50 1256.00 1067.00 521.50 452.00 9999.00
1945 400.50 446.00 540.00 770.00 1044.50 1194.50 1545.50 1489.00 1271.50 1030.50 567.00 191.00 m 9999.00
1946 330.00 392.00 672.00 1001.00 1077.50 1325.00 1567.57 a 1543.50 1344.50 867.00 533.50 519.00 9999.00
1947 330.50 564.50 717.00 826.50 1184.50 1291.50 1631.50 1486.50 1393.50 1030.00 521.50 385.00 9999.00
1948 462.02 e 449.50 596.23 a 857.50 895.50 f 439.00 s 1539.27 e 1552.50 1276.00 997.50 475.50 352.00 8558.02
1949 176.00 342.00 547.50 852.41 a 1061.23 a 874.50 i 502.00 t 1440.50 1359.50 889.00 782.00 393.18 a 7843.33
1950 397.32 a 488.00 638.50 908.50 1024.50 1258.50 1423.00 1438.50 0.00 z 1190.50 758.50 575.00 9999.00
1951 341.50 421.00 602.50 806.50 1106.00 1212.41 a 1583.67 b 1240.00 f 452.50 s 1033.00 600.00 a 378.00 8084.59
1952 329.00 369.00 336.50 f 803.50 1159.92 a 1292.22 c 1497.82 a 1529.00 1363.00 1151.28 b 193.50 u 353.00 9847.73
1953 452.37 d 365.50 639.63 a 762.50 879.88 a 666.00 n 1257.50 f 1252.50 f 1321.80 e 951.91 b 523.50 f 314.00 5687.60
1954 394.96 d 613.41 a 590.55 a 913.80 e 1092.20 c 1250.50 1558.50 1453.12 c 1388.08 d 940.50 f 254.50 s 447.50 f 9255.12
1955 273.04 e 300.50 615.00 706.20 e 815.50 f 1012.00 f 1411.69 e 1438.52 e 857.00 l 981.00 f 370.50 j 382.50 g 4744.95
1956 519.00 298.46 e 470.50 g 628.00 f 893.00 g 1111.50 f 1197.50 g 817.00 m 902.50 j 748.00 i 451.00 h 475.13 e 1292.59
1957 335.00 h 628.25 d 688.56 e 820.80 e 290.00 w 1082.00 f 1169.00 h 1091.00 i 1028.00 f 743.00 h 267.00 l 452.60 a 2590.21
1958 210.50 m 298.00 i 322.00 j 575.00 f 900.50 i 766.50 n 1608.42 e 1197.00 g 913.50 i 855.50 f 475.50 j 418.50 g 1608.42
1959 308.00 h 217.00 l 471.50 h 698.50 h 805.00 g 1404.00 e 997.00 l 1450.44 e 1313.40 e 796.50 f 238.00 r 319.00 g 4167.84
1960 183.00 g 155.00 j 582.50 f 660.00 f 748.50 j 1004.50 h 998.00 k 1520.19 e 1378.20 e 522.00 p 428.00 j 313.50 f 2898.39
1961 419.00 f 450.43 e 637.29 e 580.50 i 0.00 z 0.00 z 1260.50 f 894.00 l 956.50 g 781.00 f 335.00 l 209.00 m 1087.72
1962 277.50 f 348.00 f 362.50 g 567.00 l 0.00 z 0.00 z 0.00 z 1113.50 j 746.50 m 986.04 e 431.00 g 332.00 f 986.04
1963 237.50 531.50 523.00 637.50 1080.41 d 932.50 g 1598.71 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4608.62
1964 159.50 235.00 379.50 0.00 z 969.00 1155.50 1109.50 h 1018.50 h 905.50 g 914.50 f 371.50 i 387.50 d 3286.00
1965 380.04 d 352.00 377.50 g 557.50 f 631.50 j 1137.69 d 1471.43 b 1015.00 j 1253.08 d 1137.00 659.42 d 320.73 e 6711.39
1966 258.00 200.00 601.00 782.00 1099.00 1359.00 1563.50 1479.50 1187.50 925.00 640.96 d 364.50 9999.00
1967 331.00 406.00 0.00 z 0.00 z 956.50 1177.50 1467.50 540.00 t 1281.50 816.00 f 708.21 b 263.50 6591.71
1968 326.50 339.54 e 552.00 0.00 z 1018.50 1304.50 1378.93 d 1305.50 1250.00 0.00 z 490.00 i 331.00 7806.47
1969 408.00 413.50 460.02 c 828.00 1125.50 1207.50 1513.50 1618.50 1402.50 883.50 d 600.58 d 392.50 9999.00
1970 341.00 453.50 520.05 b 631.67 c 1122.50 1323.10 a 1610.40 b 1575.83 a 1212.50 842.88 b 616.80 e 399.50 9999.00
1971 398.00 388.50 652.50 774.00 972.50 1270.00 1607.02 c 1479.00 1283.50 863.50 559.00 296.50 9999.00
1972 350.00 499.50 858.50 831.50 1101.50 1353.50 1599.50 1495.48 b 1304.00 920.00 476.00 324.50 9999.00
1973 307.00 430.00 427.00 676.61 b 1146.50 1322.50 1518.00 1523.00 1230.00 1000.00 548.00 423.00 9999.00
1974 366.00 365.56 a 639.00 785.50 1095.00 1416.00 1479.00 1432.00 1295.50 1025.00 595.50 260.00 9999.00
1975 353.50 376.00 520.00 623.50 1017.00 1258.00 1540.50 1490.50 1299.00 965.50 592.00 421.00 9999.00
1976 445.37 a 542.50 450.00 h 430.00 n 651.50 m 808.00 k 834.50 n 1439.71 e 1196.90 a 925.00 652.50 443.00 5644.97
1977 373.00 480.85 b 499.00 860.00 961.00 a 1372.50 1569.50 1528.00 1301.00 1124.55 b 658.00 493.86 b 9999.00
1978 382.16 b 397.00 471.50 j 592.50 g 1071.00 0.00 z 317.00 y 1497.54 e 1303.39 b 0.00 z 613.27 d 182.50 r 5264.36
1979 0.00 z 0.00 z 0.00 z 0.00 z 738.00 h 1021.00 f 1405.16 b 1316.97 b 1314.00 0.00 z 0.00 z 0.00 z 4036.12
Period of Record Statistics
MEAN 376.25 428.97 616.92 806.55 1066.34 1287.38 1534.79 1490.29 1289.92 985.38 627.19 408.01 10847.13
S.D. 83.23 92.59 100.27 84.96 92.62 71.08 63.54 65.10 57.75 84.84 77.42 84.71 336.35
SKEW -0.29 -0.21 0.36 -0.22 -0.31 -0.22 -0.44 -0.26 -0.18 0.24 0.05 0.11 0.75
MAX 528.55 628.25 887.63 1001.00 1298.00 1435.50 1648.50 1665.50 1402.50 1190.50 784.62 601.40 11737.00
MIN 159.50 200.00 379.50 623.50 761.05 1128.00 1378.93 1305.50 1131.00 842.88 475.50 225.00 9999.00
NO YRS 71 75 66 65 68 60 68 67 69 64 55 66 28