DAVIS DAM #2, ARIZONA

Monthly Total Growing Degree Days

(022439)

Base Temperature = 40 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 197707
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
1958 540.50 560.00 587.00 894.00 1353.50 1465.50 1633.50 1743.50 1432.50 1172.50 671.50 587.00 9999.00
1959 515.50 438.00 795.00 1049.00 1201.50 1543.50 1784.50 1621.00 1299.50 1065.62 c 669.44 c 456.73 a 9999.00
1960 265.57 a 365.29 c 778.00 938.28 a 1188.16 b 1578.10 a 1741.88 b 1676.00 1421.25 b 1035.00 646.61 b 412.76 d 9999.00
1961 471.09 c 467.38 b 686.50 934.14 a 1178.00 b 0.00 z 1794.12 c 1663.27 e 1267.78 c 1022.47 b 558.33 c 333.25 c 9999.00
1962 376.65 a 480.31 b 550.50 1067.59 a 1130.43 b 1428.10 a 1702.93 a 1708.32 c 1456.07 b 1088.62 a 741.35 d 548.81 d 9999.00
1963 301.70 c 604.69 b 667.00 808.50 1259.63 a 1338.10 a 1686.63 d 1672.45 a 1406.11 c 1158.76 b 505.50 g 437.62 a 9999.00
1964 304.50 372.17 b 547.15 a 824.50 1113.86 b 1391.79 b 1709.81 b 1649.89 d 1350.60 e 1218.19 d 547.20 e 415.63 d 9999.00
1965 363.00 f 449.17 d 605.61 c 776.79 b 885.00 f 1262.78 c 1658.50 c 1299.00 f 1213.85 d 1130.95 c 709.80 e 408.96 e 8216.39
1966 300.38 b 324.43 e 700.37 d 975.50 1051.00 f 1438.20 e 1344.00 f 1711.89 d 1133.00 f 999.46 d 544.50 f 376.00 f 6450.24
1967 411.35 e 497.91 e 768.44 e 690.00 d 1171.44 e 1344.81 d 1285.00 h 1721.07 d 1411.15 d 1141.63 e 572.50 f 233.50 f 9157.81
1968 400.02 e 631.35 e 724.92 e 826.15 d 1180.98 e 1133.00 g 1663.27 e 1184.00 g 965.50 i 1033.33 d 513.00 g 215.50 g 6460.03
1969 486.04 c 386.96 c 471.50 g 767.00 f 938.00 h 1423.50 1216.00 i 1797.50 1467.12 d 709.50 j 500.00 j 364.50 i 5561.11
1970 364.25 c 543.85 b 669.60 a 757.24 a 1229.48 c 1485.00 c 1738.21 c 1683.82 a 1309.00 947.00 632.50 332.50 9999.00
1971 405.50 475.00 681.00 842.00 1010.00 1415.89 b 1736.50 1643.50 1312.50 896.00 558.50 287.00 9999.00
1972 315.50 542.71 a 910.00 917.00 1217.27 a 1469.48 a 1737.50 1606.83 a 1017.50 f 667.00 i 400.00 f 172.50 j 8716.30
1973 204.50 f 410.87 e 526.43 d 643.50 g 1049.50 f 1472.31 d 1324.50 g 1637.26 d 936.50 h 613.00 l 452.00 g 307.50 k 4046.86
1974 273.04 e 305.00 f 744.00 e 877.20 e 992.00 f 1573.50 1662.00 1566.53 a 1419.64 b 1078.50 611.00 320.85 a 9999.00
1975 350.00 377.50 591.00 684.50 1128.50 1425.00 1702.50 1605.50 1434.00 1013.00 383.00 n 486.00 9999.00
1976 441.00 542.00 626.50 801.00 1293.50 1404.00 1705.00 1563.50 1277.50 998.00 659.00 402.00 9999.00
1977 349.50 547.50 560.00 966.50 1018.00 1515.00 379.50 x 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4956.50
Period of Record Statistics
MEAN 381.78 474.58 669.42 868.33 1178.28 1443.03 1710.46 1663.05 1365.24 1062.44 636.84 417.62 11940.12
S.D. 83.42 87.20 101.56 109.71 91.94 81.65 45.95 62.11 79.44 86.55 63.34 88.34 490.33
SKEW 0.39 0.03 0.53 0.09 -0.16 -0.22 0.19 0.28 -0.40 -0.01 -0.04 0.40 0.07
MAX 540.50 631.35 910.00 1067.59 1353.50 1578.10 1794.12 1797.50 1467.12 1218.19 741.35 587.00 12641.00
MIN 265.57 324.43 526.43 684.50 1010.00 1262.78 1633.50 1563.50 1213.85 896.00 547.20 287.00 9999.00
NO YRS 18 19 19 18 15 18 15 17 15 16 11 13 8