TRONA, CALIFORNIA

Monthly Total Growing Degree Days

(049035)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1920 12.50 n 53.00 145.00 390.50 710.50 885.50 1162.50 1135.50 783.00 350.50 79.50 8.00 5703.50
1921 2.00 104.50 276.00 359.00 520.00 949.50 1212.50 1115.50 816.00 572.50 151.50 39.50 6118.50
1922 2.00 45.50 139.50 280.00 647.00 961.00 1197.00 1091.50 936.00 459.50 35.00 19.50 5813.50
1923 10.00 64.50 189.50 331.50 717.50 739.00 1147.00 1052.00 814.00 413.50 141.50 9.50 5629.50
1924 0.00 102.50 74.00 398.50 808.50 984.00 1130.50 1093.00 834.00 374.00 113.50 9.50 5922.00
1925 12.50 100.00 233.00 427.50 725.00 897.00 1220.00 1042.50 718.50 421.00 56.50 26.50 5880.00
1926 10.50 82.00 332.00 519.00 757.50 1088.50 1187.00 1118.50 795.00 551.00 208.00 30.50 6679.50
1927 0.00 100.00 171.50 413.50 682.00 951.50 1212.00 1096.50 798.50 517.00 168.50 12.00 6123.00
1928 8.50 33.00 297.00 448.50 798.50 974.50 1181.50 1112.00 870.00 464.00 103.50 12.00 6303.00
1929 0.00 22.00 214.00 322.00 740.00 873.00 1197.50 1210.50 794.50 574.50 99.00 59.50 6106.50
1930 7.00 110.50 230.00 482.00 499.50 972.00 1162.00 1128.50 740.50 408.50 126.00 0.00 5866.50
1931 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 z 0.00 z 0.00 z 0.00 z 0.00
1932 0.00 65.00 275.00 408.50 664.00 915.50 1180.50 1125.50 937.50 544.50 179.50 4.00 6299.50
1933 0.00 5.50 230.00 332.50 521.00 892.00 1298.50 1172.50 864.50 706.50 138.50 12.00 6173.50
1934 31.50 120.00 495.00 644.50 832.00 827.50 1233.00 1202.50 897.50 541.00 195.00 72.50 7092.00
1935 10.00 74.50 142.00 420.50 678.50 1061.50 1127.50 1175.50 964.00 499.00 42.50 11.50 6207.00
1936 15.50 64.50 302.00 537.50 773.00 994.50 1246.50 1199.50 847.50 535.00 135.50 0.50 6651.50
1937 0.00 31.00 185.00 385.50 807.50 966.00 1253.50 1210.00 944.00 557.00 177.00 70.00 6586.50
1938 14.50 36.00 168.50 490.00 729.00 975.00 1193.50 1145.50 953.50 485.50 48.50 39.00 6278.50
1939 26.50 32.00 259.00 586.00 784.00 948.50 1221.50 1205.50 838.50 482.00 155.00 38.00 6576.50
1940 86.00 73.50 329.00 497.50 850.50 1095.00 1151.00 1160.50 795.00 542.00 70.50 27.50 6678.00
1941 58.50 115.00 205.50 294.00 761.50 864.00 1173.00 1035.00 733.50 397.50 208.50 19.00 5865.00
1942 20.00 52.50 206.50 428.50 670.00 979.50 1281.00 1202.00 848.50 578.50 166.00 47.50 6480.50
1943 35.50 106.00 328.50 545.50 782.00 831.00 1182.00 1092.00 982.00 594.50 135.50 7.00 6621.50
1944 11.50 28.00 215.50 377.50 710.50 785.00 1101.00 1120.50 911.50 0.00 z 0.00 z 10.00 5271.00
1945 15.00 88.00 133.50 482.50 738.50 936.50 1305.50 1140.00 955.00 606.50 167.50 12.50 6581.00
1946 26.00 88.00 203.50 555.00 751.50 990.00 1212.50 1193.50 898.50 410.50 58.00 26.50 6413.50
1947 4.00 112.00 318.50 483.50 855.00 947.00 1158.50 1071.50 1003.50 609.00 87.50 9.00 6659.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1171.00 1096.00 926.00 594.50 166.80 e 10.00 3964.30
1949 0.00 42.00 172.50 574.50 699.50 1012.00 1203.50 1096.37 a 985.00 525.00 304.14 a 43.92 a 6658.42
1950 36.50 166.00 293.50 596.00 742.50 933.62 a 1253.50 1159.50 888.00 707.50 319.50 103.33 a 7199.45
1951 39.00 100.00 267.50 458.00 751.50 977.00 1264.50 1137.50 973.00 540.50 144.50 14.00 6667.00
1952 4.50 56.50 71.50 h 413.50 813.00 806.00 1172.83 a 1186.27 a 880.86 a 483.50 g 136.61 b 1.55 a 5471.62
1953 22.45 b 34.50 241.50 439.00 511.00 846.00 1304.50 1106.50 956.00 511.50 166.00 m 0.00 l 5972.95
1954 33.77 c 187.00 168.50 614.44 c 857.00 912.50 1264.50 1040.00 901.00 584.00 216.00 3.50 6782.21
1955 0.00 c 36.40 c 257.00 322.50 b 645.50 928.00 1136.50 1257.00 917.50 618.50 152.00 63.50 6334.40
1956 64.00 37.50 264.50 430.50 762.00 1032.50 1184.50 1108.00 1021.50 522.00 89.44 c 4.00 6520.44
1957 4.50 198.00 316.50 441.00 597.50 1066.50 1181.50 1126.85 a 889.14 a 454.00 90.00 5.50 6370.99
1958 24.50 130.00 108.00 400.50 815.00 920.00 1161.00 1281.00 914.50 700.00 184.50 20.00 6659.00
1959 70.86 c 24.00 f 324.00 584.50 657.00 1061.90 a 1356.50 1146.00 847.76 a 641.50 158.50 13.50 6862.01
1960 7.00 22.50 336.00 490.00 714.00 1112.00 1268.00 1160.00 977.00 540.50 124.50 2.00 6753.50
1961 7.50 90.50 248.00 495.50 652.50 1065.00 1273.50 1139.50 796.00 535.50 123.50 4.00 6431.00
1962 13.00 64.50 117.00 597.50 602.50 934.14 a 1119.50 1136.00 894.00 562.00 191.00 6.00 6237.14
1963 8.50 213.11 a 185.00 286.50 744.00 a 834.50 1119.00 1091.50 913.00 637.00 177.50 2.50 6212.11
1964 6.20 a 15.00 151.00 369.50 605.50 883.50 1189.00 1155.00 846.50 702.00 110.17 a 100.50 6133.87
1965 46.00 103.70 a 193.50 361.50 653.50 808.50 1110.50 1148.00 715.50 634.00 211.00 3.00 5988.70
1966 0.00 15.00 265.50 523.00 775.00 951.50 1102.05 a 1200.50 869.48 a 528.60 b 185.69 a 36.50 6452.83
1967 4.00 57.00 258.50 117.50 674.00 770.50 1255.50 1257.50 895.00 599.50 287.50 3.00 6179.50
1968 19.50 118.00 230.50 371.00 673.50 997.50 286.50 w 985.00 864.50 522.50 172.50 0.00 4954.50
1969 45.00 4.00 169.50 423.00 802.50 871.00 1212.00 1270.00 966.00 419.00 166.50 28.00 6376.50
1970 31.00 86.00 252.81 b 283.97 a 752.00 987.50 1293.22 a 1259.50 795.50 490.00 155.50 1.50 6388.49
1971 20.00 81.50 201.00 381.00 489.50 920.00 1231.00 1240.50 822.00 468.00 110.50 8.00 5973.00
1972 4.00 114.50 368.79 b 402.00 724.00 943.50 1230.50 1108.50 829.00 409.50 92.00 9.50 6235.79
1973 0.00 25.93 a 98.00 425.50 840.00 1047.00 1207.50 1130.00 851.00 521.50 174.00 12.00 6332.43
1974 11.00 21.50 270.50 390.50 764.00 1025.00 1206.50 1117.50 1026.00 586.00 150.50 0.00 z 6569.00
1975 18.50 33.50 111.50 191.00 712.00 960.50 1208.00 1093.00 936.50 493.50 144.50 19.00 5921.50
1976 34.50 88.50 220.50 355.50 818.00 923.50 1183.50 989.50 839.50 579.50 265.50 0.00 6298.00
1977 8.50 112.00 97.00 496.00 468.50 1040.50 1174.00 1173.50 876.50 642.00 195.00 62.50 6346.00
1978 18.50 88.50 286.50 355.00 699.00 1009.50 1180.00 1174.50 820.50 710.50 124.50 4.00 6471.00
1979 5.00 49.50 234.00 0.00 z 0.00 z 1009.50 1205.90 a 1090.00 1042.00 643.50 109.00 26.00 k 5388.40
1980 135.00 147.50 41.00 x 454.00 396.00 l 573.00 m 1268.50 1137.00 922.00 610.50 205.00 42.00 4921.50
1981 5.00 86.00 197.50 i 490.50 701.00 1177.00 1255.50 1287.00 1009.50 458.50 0.00 z 0.00 z 6470.00
1982 8.50 185.00 193.50 450.00 790.50 939.00 1211.00 1203.00 858.00 570.50 77.00 13.50 6499.50
1983 3.50 85.00 221.00 295.50 795.50 1002.00 1162.00 1154.50 996.00 604.50 238.00 47.00 6604.50
1984 66.50 85.50 306.00 405.00 947.00 1016.50 1313.00 1238.00 1038.50 474.00 227.00 19.50 7136.50
1985 6.50 123.00 186.00 605.50 796.00 1144.50 1313.00 1137.00 702.00 560.50 158.50 34.00 6766.50
1986 77.50 227.00 398.50 471.50 830.00 1086.00 1124.50 1262.00 766.50 500.00 242.50 24.50 7010.50
1987 17.50 119.00 229.50 598.50 772.00 1080.00 1091.50 1148.50 927.50 678.50 188.00 16.50 6867.00
1988 15.00 134.00 362.50 479.00 666.50 907.50 1341.50 1211.50 954.50 823.50 261.00 38.00 7194.50
1989 24.50 167.50 434.50 737.00 814.00 1054.50 1362.50 1169.00 934.00 532.00 245.00 7.50 7482.00
1990 18.00 108.00 377.00 607.00 730.50 1054.00 1306.50 1160.50 984.50 682.00 262.50 6.50 7297.00
1991 13.50 198.50 110.00 446.50 643.77 a 944.00 1230.50 1161.50 1044.50 764.00 268.00 28.50 6853.27
1992 2.50 167.50 311.50 645.50 961.00 1047.50 0.00 z 1328.00 1068.00 776.50 207.00 14.50 6529.50
1993 22.50 95.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 125.00 x 0.00 z 5.88 b 123.88
1994 0.00 i 8.00 k 244.00 457.00 770.00 1139.50 1484.50 1366.00 1060.50 609.00 28.50 q 27.00 y 7130.50
1995 0.00 z 0.00 z 61.50 o 427.00 583.00 799.50 1128.00 1169.00 1067.00 702.50 366.50 120.50 6363.00
1996 247.50 400.30 a 480.50 661.50 907.00 1204.50 1444.00 1361.50 1013.00 678.00 328.00 0.00 z 8725.80
1997 131.75 a 221.00 486.50 588.10 a 0.00 z 1053.62 a 1239.50 1311.00 1067.68 b 727.00 384.83 a 63.00 7273.98
1998 95.07 a 77.50 310.00 416.50 599.33 a 902.50 1356.50 1403.00 1030.86 a 550.50 71.50 72.85 a 6886.11
1999 73.88 a 0.00 z 198.00 172.50 h 778.32 c 772.00 f 1168.50 1145.00 977.50 737.36 c 315.50 102.62 b 5496.68
2000 133.62 b 127.50 290.22 b 0.00 z 0.00 z 0.00 z 1172.00 1175.50 916.50 565.50 108.00 31.50 4520.34
2001 5.50 26.83 d 315.68 a 381.00 969.50 1087.50 1192.98 a 1259.50 1016.00 721.00 303.75 b 18.08 a 7297.33
2002 0.00 z 117.00 228.50 508.00 721.50 660.00 k 0.00 z 1118.00 898.85 d 587.00 257.00 27.50 4463.35
2003 110.50 24.00 g 46.50 49.00 456.50 768.50 1032.50 910.50 740.50 437.00 0.00 0.00 4551.50
2004 0.00 0.00 0.00 z 117.00 t 492.00 0.00 z 1255.00 1243.50 976.50 568.00 139.50 36.00 4710.50
2005 60.00 61.00 283.50 380.50 772.00 917.50 1361.00 1227.00 839.50 583.00 256.00 49.50 6790.50
2006 24.50 106.00 133.00 386.50 884.00 1116.00 1364.50 1158.50 902.50 530.00 271.50 5.00 6882.00
2007 13.50 122.50 441.75 a 556.00 855.50 1063.50 1313.50 1266.00 874.50 548.50 294.50 19.00 7368.75
2008 9.00 79.00 327.00 468.00 729.50 1058.50 1271.00 1269.00 998.00 628.00 255.50 33.50 7126.00
2009 30.00 68.50 239.00 416.00 944.90 e 878.50 1339.00 1171.50 1045.00 514.50 201.00 0.50 6848.40
2010 9.00 88.00 235.27 c 340.00 584.50 1035.50 1291.50 1149.50 942.00 611.50 200.50 33.50 6520.77
2011 42.76 b 37.50 230.50 460.86 a 581.00 905.17 a 1175.42 a 1190.18 c 1006.67 c 633.43 a 95.50 16.50 6375.49
2012 13.78 d 83.50 251.00 486.21 a 828.00 1011.72 a 1182.65 a 1297.00 1044.83 a 642.98 b 230.17 a 84.39 d 7156.23
2013 6.95 b 50.30 a 372.50 14.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 429.74
Period of Record Statistics
MEAN 27.71 90.77 247.10 443.01 725.98 967.87 1221.64 1165.90 907.40 566.61 174.01 25.93 6521.31
S.D. 39.10 61.92 93.01 115.08 113.35 98.06 79.58 83.25 91.95 97.32 79.07 26.90 417.43
SKEW 2.93 1.75 0.46 -0.37 -0.35 -0.08 0.66 0.18 -0.18 0.18 0.37 1.55 0.24
MAX 247.50 400.30 495.00 737.00 969.50 1204.50 1484.50 1403.00 1068.00 823.50 384.83 120.50 7482.00
MIN 0.00 0.00 46.50 49.00 456.50 739.00 1032.50 910.50 702.00 350.50 0.00 0.00 5629.50
NO YRS 88 87 86 86 86 85 88 91 91 89 87 86 70