HELVETIA SANTA RITA, ARIZONA

Monthly Total Heating Degree Days

(023981)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 195004
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
1916 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 e 0.00 0.00 z 308.50 563.00 871.50
1917 589.00 456.00 397.00 158.50 81.00 3.00 0.00 0.00 0.00 32.50 115.18 b 325.00 2157.18
1918 572.50 305.50 219.50 118.50 59.00 0.00 0.00 0.00 0.00 77.00 392.00 611.00 2355.00
1919 582.00 547.50 377.00 119.50 27.00 0.00 0.00 0.00 7.50 148.00 380.00 0.00 z 2188.50
1920 0.00 z 0.00 z 0.00 z 0.00 z 25.50 0.00 0.00 b 0.00 0.00 z 0.00 z 0.00 z 0.00 z 25.50
1921 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 a 0.00 0.00 64.00 224.00 g 0.00 z 64.00
1922 0.00 z 0.00 z 178.50 n 256.11 c 57.41 d 0.00 0.00 0.00 0.00 e 59.00 h 244.50 n 0.00 z 313.52
1923 0.00 z 0.00 z 0.00 z 112.00 j 10.16 b 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 10.16
1924 0.00 z 509.00 577.00 79.00 w 0.00 z 0.00 z 0.00 z 0.00 e 0.00 14.50 j 59.50 r 471.56 e 1557.56
1925 499.88 c 145.50 m 177.73 a 85.38 d 0.00 h 0.00 g 0.00 d 0.00 b 0.00 i 116.00 392.68 b 576.27 c 1847.94
1926 664.84 c 367.36 c 330.50 223.39 b 57.72 b 0.00 0.00 a 0.00 0.00 f 27.68 c 185.00 597.00 2453.49
1927 333.50 328.46 b 366.00 187.50 28.00 7.00 0.00 z 0.00 e 2.50 37.00 108.50 g 611.00 1900.96
1928 435.15 d 453.00 203.00 126.50 30.50 0.00 0.00 0.00 0.00 56.00 319.00 522.00 2145.15
1929 592.50 545.00 377.50 165.56 c 0.50 h 0.00 0.00 0.00 0.00 115.22 a 340.71 b 321.00 2457.49
1930 530.50 267.50 379.00 55.50 84.00 0.00 0.00 0.00 0.00 51.00 363.50 555.50 2286.50
1931 570.50 471.50 338.00 163.00 12.50 0.00 0.00 0.00 0.00 46.50 a 439.14 a 537.69 b 2578.83
1932 678.50 345.00 254.00 100.50 25.00 10.00 0.00 0.00 0.50 86.50 140.00 593.65 a 2233.65
1933 613.00 583.50 181.50 f 198.50 120.38 a 0.00 0.00 0.00 0.00 13.00 189.31 a 376.00 2093.69
1934 530.10 a 312.00 111.00 69.00 7.50 2.59 a 0.00 0.00 2.50 14.50 293.50 429.50 1772.19
1935 428.00 431.50 362.00 97.76 a 63.50 0.00 0.00 0.00 a 1.00 66.00 346.00 520.50 2316.26
1936 517.50 469.00 259.00 97.00 12.50 1.00 0.00 0.00 5.50 65.50 275.00 530.00 2232.00
1937 844.50 406.50 372.50 136.55 a 16.00 0.00 0.00 0.00 0.00 16.00 190.00 428.00 2410.05
1938 477.00 402.50 360.50 130.50 48.00 0.00 0.00 0.00 0.00 41.50 309.50 421.00 2190.50
1939 575.50 686.50 302.50 72.00 0.00 0.00 0.00 0.00 0.00 69.50 228.00 353.00 2287.00
1940 486.00 473.00 243.50 135.00 8.50 0.00 0.00 0.00 0.00 64.50 335.50 359.50 2105.50
1941 570.00 414.50 406.00 302.00 70.50 2.00 0.00 0.00 12.00 119.50 219.00 488.50 2604.00
1942 474.00 478.00 401.00 170.50 44.00 0.00 0.00 0.00 0.00 95.50 179.50 411.00 2253.50
1943 493.00 299.00 279.00 99.50 8.00 0.00 0.00 0.00 1.50 76.50 197.00 550.50 2004.00
1944 574.00 552.00 402.00 204.00 17.50 0.00 a 0.00 0.00 0.00 33.58 a 435.00 476.00 2694.08
1945 561.50 426.00 477.50 216.00 12.50 2.00 0.00 0.00 11.50 17.50 223.50 505.50 2453.50
1946 620.00 417.50 291.50 46.00 14.50 0.00 0.00 0.00 0.00 117.50 395.00 336.00 2238.00
1947 616.50 270.00 296.50 146.50 19.00 0.00 0.00 0.00 0.00 49.50 435.50 589.00 2422.50
1948 495.00 508.50 478.00 110.50 15.00 0.00 0.00 0.00 0.00 76.00 389.00 456.50 2528.50
1949 858.00 522.50 337.50 130.00 24.00 0.00 0.00 0.00 0.00 129.50 73.00 511.50 2586.00
1950 499.50 299.50 259.50 49.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1107.50
Period of Record Statistics
MEAN 561.45 432.68 332.27 139.01 34.45 0.92 0.00 0.00 1.48 66.31 288.89 483.68 2311.54
S.D. 108.75 103.41 97.43 61.76 28.94 2.26 0.00 0.00 3.28 37.42 104.48 91.77 216.72
SKEW 0.93 0.22 0.09 0.66 1.19 2.95 0.00 0.00 2.36 0.44 -0.29 -0.35 -0.34
MAX 858.00 686.50 577.00 302.00 120.38 10.00 0.00 0.00 12.00 148.00 439.14 611.00 2694.08
MIN 333.50 267.50 111.00 46.00 0.00 0.00 0.00 0.00 0.00 13.00 73.00 321.00 1772.19
NO YRS 29 29 29 30 29 30 32 33 30 29 28 29 22