SPANISH FORK PWR HOUSE, UTAH

Monthly Total Growing Degree Days

(428119)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1928 3.10 a 8.00 186.00 280.50 686.50 821.00 1134.50 1048.50 828.00 479.50 112.50 8.50 5596.60
1929 0.00 1.04 a 98.50 250.50 601.50 860.89 b 1141.50 1093.50 448.00 l 494.45 a 52.50 71.30 a 4665.68
1930 7.00 81.50 142.00 505.50 522.50 900.00 1158.50 1042.00 725.50 326.00 104.50 0.00 5515.00
1931 0.00 7.50 134.50 410.00 626.00 1027.50 1288.00 1093.27 a 814.50 524.00 146.00 4.50 6075.77
1932 0.00 19.50 78.00 341.00 643.50 837.50 1133.50 1093.00 809.00 405.00 171.50 11.50 5543.00
1933 0.00 1.50 96.50 250.00 447.50 1039.66 a 1246.50 1082.00 907.50 624.00 139.14 a 63.50 5897.79
1934 5.50 117.50 351.50 572.00 880.50 910.00 1226.50 1102.00 702.00 438.50 173.00 5.50 6484.50
1935 11.00 48.50 128.13 a 301.00 489.00 927.50 1185.00 1128.00 826.00 352.50 10.00 0.00 5406.63
1936 6.00 7.00 93.00 450.50 749.00 971.00 1150.00 1127.50 742.50 472.50 72.00 9.00 5850.00
1937 0.00 0.50 98.00 300.00 707.00 836.50 1135.50 1171.00 852.00 461.00 151.50 18.50 5731.50
1938 12.50 44.00 99.00 388.50 504.50 929.50 1107.50 1098.00 867.50 502.00 12.50 16.50 5582.00
1939 0.00 0.00 185.00 438.50 686.00 830.50 1169.50 1119.00 786.00 403.00 188.00 109.00 5914.50
1940 0.00 37.50 178.00 336.00 750.50 985.00 1176.50 1146.50 783.00 497.00 68.50 13.00 5971.50
1941 0.00 48.00 129.00 186.50 623.50 832.50 1068.50 1024.00 0.00 z 313.50 152.50 29.50 4407.50
1942 4.00 0.00 47.50 364.00 462.00 813.50 1171.50 1102.50 775.50 461.50 124.50 7.00 5333.50
1943 39.00 10.50 147.00 512.00 550.50 0.00 z 1103.50 1097.00 866.90 a 482.00 136.00 1.50 4945.90
1944 0.00 5.50 35.00 199.50 575.50 716.00 1094.50 1084.00 789.00 536.50 95.50 0.00 5131.00
1945 9.82 a 13.50 80.00 213.50 592.00 632.50 1088.50 1025.50 661.00 489.00 79.00 4.00 4888.32
1946 0.00 16.50 151.50 434.50 513.00 900.50 1141.00 1107.50 750.00 231.00 48.50 75.50 5369.50
1947 3.50 25.00 163.00 262.50 663.00 693.50 1109.00 1016.00 789.50 470.00 29.00 5.00 5229.00
1948 7.00 17.50 33.07 a 314.50 593.50 798.50 1095.00 683.00 k 542.50 j 453.50 49.50 10.00 3372.07
1949 0.00 1.00 100.50 450.50 571.00 0.00 z 0.00 z 1033.50 833.00 289.50 189.50 20.00 3488.50
1950 16.53 a 47.00 86.00 326.50 432.50 774.00 1014.00 982.00 713.00 559.00 157.00 13.00 5120.53
1951 0.50 57.00 88.00 357.00 570.50 703.50 1073.00 995.50 743.50 324.00 50.19 d 2.00 4964.69
1952 0.00 1.50 16.50 334.00 645.00 829.50 1086.50 1060.72 a 822.00 567.00 84.50 3.00 5450.22
1953 55.00 25.50 172.50 247.50 413.50 839.50 1154.00 1058.00 853.50 461.50 223.00 0.00 5503.50
1954 22.22 a 40.00 93.50 440.00 703.00 773.50 1180.50 1039.50 773.00 472.00 179.50 3.00 5719.72
1955 0.00 0.50 47.50 246.00 582.50 783.00 1075.50 1098.50 773.50 457.00 53.50 72.00 5189.50
1956 74.50 8.00 192.50 329.00 642.73 a 925.50 1091.50 970.50 818.00 451.00 59.00 13.50 5575.73
1957 6.00 67.00 145.00 265.00 499.50 818.50 1098.00 1077.50 726.00 414.50 20.00 7.50 5144.50
1958 2.00 116.15 a 52.00 l 221.50 767.00 955.00 1094.50 1152.50 770.00 521.32 a 154.82 b 21.50 5776.29
1959 26.50 12.96 a 102.00 377.00 503.23 a 946.50 1141.83 a 1040.50 655.50 412.50 108.50 6.00 5333.03
1960 5.50 7.00 192.50 365.50 597.27 a 928.00 1184.00 1036.00 841.50 385.50 119.50 14.50 5676.77
1961 5.50 35.50 100.00 277.00 630.50 1010.50 1180.50 1057.00 555.50 353.50 19.00 0.52 a 5225.02
1962 0.00 35.00 44.00 380.17 a 582.50 844.50 1079.83 a 1080.35 a 835.34 a 544.00 222.50 16.00 5664.20
1963 0.00 b 117.00 111.00 208.00 742.93 b 777.00 1180.00 1121.68 a 867.50 617.50 136.00 0.00 5878.61
1964 0.00 0.00 a 26.00 227.50 551.80 a 741.50 1183.68 a 1022.00 726.00 541.00 101.00 31.00 5151.48
1965 10.50 32.50 74.50 326.90 a 506.50 758.00 1086.00 971.85 a 571.50 520.80 a 245.00 33.50 5137.55
1966 1.00 0.00 a 206.50 326.00 728.00 874.00 1168.00 1048.50 768.62 a 336.00 179.00 12.00 5647.62
1967 5.00 23.00 223.00 233.00 514.71 b 732.50 1133.00 1108.50 799.00 441.00 197.00 0.00 5409.71
1968 0.00 53.50 175.00 183.50 547.00 853.45 a 1119.88 c 891.50 660.00 406.10 a 67.00 6.50 4963.42
1969 37.50 2.50 92.00 333.75 b 791.50 740.50 1107.50 1137.00 856.67 c 222.00 84.00 34.50 5439.42
1970 27.90 a 83.00 49.60 a 173.50 602.50 840.00 1093.50 1134.00 621.00 283.50 92.50 8.50 5009.50
1971 23.00 27.00 156.50 289.00 562.50 858.10 a 1139.50 1095.50 623.50 322.00 55.00 12.50 5164.10
1972 13.50 93.00 263.50 281.00 644.50 874.00 1123.00 1001.00 678.00 411.27 a 27.00 5.17 a 5414.93
1973 0.00 a 15.00 35.50 196.00 645.50 824.00 1066.29 b 1040.50 662.50 450.50 134.50 14.00 5084.29
1974 1.50 5.00 227.50 264.00 692.00 959.00 1113.50 999.00 767.50 427.50 77.00 9.00 5542.50
1975 7.00 6.50 98.00 147.00 444.00 726.00 1111.00 958.00 732.00 389.00 78.50 6.50 4703.50
1976 0.00 35.50 63.00 277.50 648.00 762.00 1156.00 978.00 786.00 370.93 b 157.50 0.00 5234.43
1977 0.00 24.00 44.50 399.00 436.50 963.00 1106.50 1046.50 767.50 493.00 134.50 49.50 5464.50
1978 0.50 22.50 216.00 291.00 513.50 866.00 1131.00 995.00 684.00 505.50 71.50 0.00 5296.50
1979 0.00 7.00 68.50 311.90 a 588.00 845.50 1117.50 1016.50 886.00 501.50 33.00 10.50 5385.90
1980 17.50 35.50 48.00 365.00 504.00 860.69 a 1145.00 997.00 735.00 374.50 165.50 38.50 5286.19
1981 4.00 74.50 100.50 430.00 530.50 932.07 a 1151.00 1090.00 829.00 295.50 174.00 55.50 5666.57
1982 7.50 43.50 103.50 255.00 540.00 792.00 1024.50 1099.00 668.50 241.00 15.00 5.00 4794.50
1983 3.50 18.00 112.50 187.00 465.50 809.50 1061.00 1040.50 767.00 454.00 127.00 3.00 5048.50
1984 0.00 0.00 27.50 204.50 668.00 751.00 1084.00 1066.50 753.00 256.50 94.50 0.50 4906.00
1985 0.00 0.00 82.50 453.00 688.50 917.50 1130.00 1082.00 655.00 431.50 73.50 3.50 5517.00
1986 15.00 136.50 310.50 335.50 637.50 997.00 1059.50 1106.00 598.50 369.00 98.50 9.50 5673.00
1987 10.00 31.50 107.00 492.00 650.50 909.50 1039.50 980.00 749.50 522.50 122.50 35.00 5649.50
1988 2.00 24.50 113.00 395.00 602.00 999.50 1186.00 1067.50 712.00 598.00 138.50 0.00 5838.00
1989 0.00 29.00 248.50 468.00 641.00 807.00 1200.00 1035.50 775.00 433.50 107.50 3.50 5748.50
1990 21.00 0.00 199.50 417.50 580.50 899.50 1151.00 1053.00 900.50 420.50 100.00 6.00 5749.00
1991 0.00 17.50 93.50 252.50 488.50 819.00 1122.50 1074.00 713.50 467.00 79.00 0.00 5127.00
1992 0.00 37.50 229.00 529.00 728.50 845.00 1024.00 1073.50 793.00 511.00 32.50 0.00 5803.00
1993 0.50 3.00 162.00 338.00 699.50 742.00 974.50 987.50 718.00 390.00 31.00 21.00 5067.00
1994 12.00 29.00 205.00 353.50 751.00 1017.50 1169.00 1165.50 850.50 364.00 59.50 9.50 5986.00
1995 21.00 133.00 194.00 281.00 469.00 742.00 1025.00 1101.50 792.00 0.00 z 207.50 68.00 5034.00
1996 12.50 19.50 173.00 330.50 625.50 940.00 1141.50 1080.50 690.50 415.50 123.50 30.00 5582.50
1997 17.00 13.50 233.50 271.00 685.50 879.00 1023.50 1065.00 768.00 398.50 94.50 0.50 5449.50
1998 18.00 15.50 159.00 265.00 591.50 694.00 1140.00 1075.50 819.00 403.00 144.00 31.50 5356.00
1999 9.50 45.50 238.50 225.00 538.50 826.00 1125.00 1054.50 694.50 491.00 282.50 8.50 5539.00
2000 59.50 81.50 133.00 469.50 706.50 900.00 1177.50 1152.50 769.50 412.50 2.00 0.00 5864.00
2001 0.00 27.00 217.00 328.50 714.50 929.50 1148.50 1141.00 882.50 512.00 192.00 1.00 6093.50
2002 6.50 5.50 98.50 393.50 641.50 956.00 1249.00 1079.50 741.50 314.50 38.00 3.00 5527.00
2003 36.00 39.00 170.00 340.00 659.00 860.00 1273.50 1132.50 756.00 592.00 43.50 27.50 5929.00
2004 0.00 14.00 303.00 391.50 631.00 882.00 1117.00 1010.50 754.00 420.00 104.00 33.00 5660.00
2005 8.50 22.50 128.00 315.00 618.00 744.50 1168.50 1035.50 729.00 438.00 140.00 29.50 5377.00
2006 7.00 22.00 110.00 413.50 672.38 b 924.11 b 753.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2148.99
Period of Record Statistics
MEAN 9.35 30.76 134.17 327.79 606.27 854.10 1127.59 1063.56 760.81 433.68 107.91 16.82 5468.35
S.D. 14.33 32.94 72.02 93.83 95.59 90.04 58.43 54.72 77.03 89.84 61.41 21.68 344.61
SKEW 2.45 1.59 0.65 0.35 0.12 -0.04 0.12 -0.38 -0.41 -0.27 0.39 2.01 0.16
MAX 74.50 136.50 351.50 572.00 880.50 1039.66 1288.00 1171.00 907.50 624.00 282.50 109.00 6484.50
MIN 0.00 0.00 16.50 147.00 413.50 632.50 974.50 891.50 555.50 222.00 2.00 0.00 4703.50
NO YRS 79 79 78 79 79 77 77 77 75 77 78 78 71