SEBA DALKAI SCHOOL, ARIZONA

Monthly Total Heating Degree Days

(027671)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 197204
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
1963 0.00 z 0.00 z 0.00 z 389.50 29.00 19.50 0.00 0.00 1.00 0.00 z 0.00 z 0.00 z 439.00
1964 0.00 z 0.00 z 0.00 z 0.00 z 168.95 a 5.56 c 0.00 0.00 g 39.50 186.00 725.69 a 698.00 h 1125.70
1965 911.40 a 797.00 745.50 412.50 224.48 b 24.23 d 0.00 e 0.00 89.00 228.37 a 484.29 b 891.25 a 4808.02
1966 1070.65 d 911.12 c 580.00 324.50 55.50 3.10 a 0.00 0.00 c 3.00 283.50 536.00 962.50 4729.87
1967 987.35 a 710.50 485.50 428.79 a 196.50 0.00 z 0.00 g 0.00 a 10.50 239.50 539.50 1103.48 e 4701.62
1968 1346.43 a 680.50 633.43 a 495.00 199.00 37.00 0.00 7.50 50.00 229.40 a 664.00 1093.00 5435.27
1969 869.50 786.00 843.50 353.79 a 137.00 4.50 0.00 0.00 16.50 266.50 g 639.00 e 783.78 a 4433.58
1970 848.88 a 588.58 d 585.50 g 589.14 a 139.50 17.50 j 0.00 p 0.00 j 54.50 f 317.00 h 416.00 h 614.50 i 2166.10
1971 558.50 l 502.00 j 465.00 i 310.00 i 132.50 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 411.00 m 0.00
1972 0.00 z 119.00 n 64.50 l 28.00 l 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 1005.70 745.62 657.59 427.60 143.74 15.65 0.00 1.25 29.93 233.35 598.08 966.80 4991.05
S.D. 185.84 111.17 140.10 89.81 69.70 13.62 0.00 3.06 31.89 34.77 92.24 135.86 386.68
SKEW 1.11 0.09 0.16 0.74 -0.60 0.52 0.00 1.79 0.90 0.13 0.15 -0.22 0.67
MAX 1346.43 911.12 843.50 589.14 224.48 37.00 0.00 7.50 89.00 283.50 725.69 1103.48 5435.27
MIN 848.88 588.58 485.50 324.50 29.00 3.10 0.00 0.00 1.00 186.00 484.29 783.78 4729.87
NO YRS 6 6 5 7 8 6 6 6 7 5 6 5 3