TRONA, CALIFORNIA

Monthly Total Growing Degree Days

(049035)

Base Temperature = 40 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 166.50 n 314.50 437.00 690.50 1020.50 1185.50 1472.50 1445.50 1083.00 659.00 343.00 110.50 8761.50
1921 119.50 323.00 586.00 658.50 830.00 1249.50 1522.50 1425.50 1116.00 882.50 414.00 252.50 9379.50
1922 67.50 195.00 399.00 579.50 957.00 1261.00 1507.00 1401.50 1236.00 769.50 252.00 236.00 8861.00
1923 142.50 233.50 484.00 631.50 1027.50 1039.00 1457.00 1362.00 1114.00 723.50 436.00 156.50 8807.00
1924 35.50 376.50 361.50 698.50 1118.50 1284.00 1440.50 1403.00 1134.00 684.00 362.50 139.50 9038.00
1925 121.50 374.00 515.00 726.00 1035.00 1197.00 1530.00 1352.50 1018.50 731.00 318.50 222.00 9141.00
1926 133.00 344.00 642.00 819.00 1067.50 1388.50 1497.00 1428.50 1095.00 861.00 508.00 163.00 9946.50
1927 124.50 311.00 474.00 704.00 992.00 1251.50 1522.00 1406.50 1098.50 827.00 438.50 136.00 9285.50
1928 157.00 287.50 607.00 748.50 1108.50 1274.50 1491.50 1422.00 1170.00 774.00 367.50 110.00 9518.00
1929 78.00 186.50 504.50 612.50 1050.00 1173.00 1507.50 1520.50 1094.50 884.50 390.00 260.00 9261.50
1930 118.00 369.50 518.00 782.00 809.50 1272.00 1472.00 1438.50 1040.50 718.50 370.00 37.00 8945.50
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 83.50 257.50 583.50 708.50 974.00 1215.50 1490.50 1435.50 1237.50 854.50 479.00 86.00 9405.50
1933 63.50 121.00 539.00 631.00 831.00 1192.00 1608.50 1482.50 1164.50 1016.50 420.00 165.50 9235.00
1934 235.00 399.00 805.00 944.50 1142.00 1127.50 1543.00 1512.50 1197.50 851.00 464.00 275.50 9999.00
1935 160.50 332.50 421.50 720.50 988.50 1361.50 1437.50 1485.50 1264.00 805.00 280.00 173.50 9430.50
1936 188.00 281.50 606.50 837.50 1083.00 1294.50 1556.50 1509.50 1147.50 845.00 426.00 116.50 9892.00
1937 14.50 229.50 491.50 685.50 1117.50 1266.00 1563.50 1520.00 1244.00 867.00 473.50 305.50 9778.00
1938 188.50 259.50 473.50 790.00 1039.00 1275.00 1503.50 1455.50 1253.50 795.50 267.00 283.00 9583.50
1939 246.00 191.50 548.00 886.00 1094.00 1248.50 1531.50 1515.50 1138.50 792.00 451.50 248.00 9891.00
1940 291.00 340.50 638.00 797.50 1160.50 1395.00 1461.00 1470.50 1095.00 852.00 336.50 247.50 9999.00
1941 295.00 391.00 511.00 590.50 1071.50 1164.00 1483.00 1345.00 1033.50 707.50 436.00 214.00 9242.00
1942 188.00 259.50 507.00 728.50 980.00 1279.50 1591.00 1512.00 1148.50 887.50 452.00 247.50 9781.00
1943 241.50 364.50 638.50 845.50 1092.00 1131.00 1492.00 1402.00 1282.00 904.50 426.50 199.50 9999.00
1944 172.00 225.50 520.00 677.50 1020.50 1085.00 1411.00 1430.50 1211.50 0.00 z 0.00 z 197.00 7950.50
1945 173.00 351.50 424.00 780.00 1048.50 1236.50 1615.50 1450.00 1255.00 916.50 454.00 164.00 9868.50
1946 206.00 287.00 510.50 855.00 1061.50 1290.00 1522.50 1503.50 1198.50 720.50 326.50 253.00 9734.50
1947 138.50 379.00 628.50 783.50 1165.00 1247.00 1468.50 1381.50 1303.50 919.00 350.50 159.00 9923.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1481.00 1406.00 1226.00 904.50 446.40 e 126.50 5590.40
1949 29.50 202.00 480.00 874.50 1009.50 1312.00 1513.50 1406.37 a 1285.00 835.00 604.14 a 174.63 a 9726.14
1950 161.00 415.50 597.00 896.00 1052.50 1233.62 a 1563.50 1469.50 1188.00 1017.50 609.00 398.87 a 9999.00
1951 219.50 322.00 538.50 758.00 1061.50 1277.00 1574.50 1447.50 1273.00 850.50 421.00 175.00 9918.00
1952 118.00 316.50 264.50 h 713.50 1123.00 1106.00 1482.83 a 1496.27 a 1180.86 a 723.50 g 357.86 b 127.62 a 8022.44
1953 253.34 b 224.50 529.00 735.50 821.00 1146.00 1614.50 1416.50 1256.00 821.50 336.00 m 73.50 l 8817.84
1954 245.79 c 460.50 438.00 914.44 c 1167.00 1212.50 1574.50 1350.00 1201.00 894.00 513.50 140.00 9999.00
1955 85.25 c 215.60 c 550.50 619.29 b 955.50 1228.00 1446.50 1567.00 1217.50 928.50 418.00 286.00 9517.64
1956 306.00 250.00 562.50 730.50 1072.00 1332.50 1494.50 1418.00 1321.50 831.50 330.56 c 171.00 9820.56
1957 121.00 436.00 626.50 740.50 907.50 1366.50 1491.50 1436.85 a 1189.14 a 764.00 363.00 167.50 9609.99
1958 238.00 406.50 383.50 692.00 1125.00 1220.00 1471.00 1591.00 1214.50 1010.00 437.50 226.00 9999.00
1959 320.52 c 190.00 f 634.00 884.50 967.00 1361.90 a 1666.50 1456.00 1147.76 a 951.50 443.00 217.00 9999.00
1960 107.50 259.50 642.50 790.00 1024.00 1412.00 1578.00 1470.00 1277.00 850.50 394.00 158.00 9963.00
1961 153.00 337.00 553.50 795.50 962.50 1365.00 1583.50 1449.50 1096.00 845.50 372.00 130.50 9643.50
1962 136.50 292.50 384.50 897.50 912.50 1234.14 a 1429.50 1446.00 1194.00 872.00 486.00 187.00 9472.14
1963 105.00 493.11 a 474.50 585.00 1054.00 a 1134.50 1429.00 1401.50 1213.00 947.00 458.00 122.50 9417.11
1964 118.83 a 205.00 419.00 662.00 915.50 1183.50 1499.00 1465.00 1146.50 1012.00 325.86 a 290.50 9242.70
1965 226.00 320.96 a 497.00 635.50 963.50 1108.50 1420.50 1458.00 1015.50 944.00 487.00 133.00 9209.46
1966 80.00 165.00 542.00 823.00 1085.00 1251.50 1412.05 a 1510.50 1169.48 a 838.60 b 462.41 a 188.50 9528.05
1967 166.00 318.50 567.50 404.00 984.00 1070.50 1565.50 1567.50 1195.00 909.50 582.50 105.00 9435.50
1968 161.00 376.50 539.00 671.00 983.50 1297.50 366.50 w 1295.00 1164.50 832.50 456.50 64.00 7841.00
1969 264.50 171.50 451.00 723.00 1112.50 1171.00 1522.00 1580.00 1266.00 729.00 442.00 187.00 9619.50
1970 207.00 343.50 555.33 b 580.34 a 1062.00 1287.50 1603.22 a 1569.50 1095.50 799.00 453.00 144.00 9699.89
1971 168.50 345.50 484.50 681.00 799.50 1220.00 1541.00 1550.50 1122.00 757.50 407.00 89.50 9166.50
1972 137.00 343.50 676.12 b 702.00 1034.00 1243.50 1540.50 1418.50 1129.00 719.50 364.50 150.50 9458.62
1973 104.50 268.07 a 401.00 725.50 1150.00 1347.00 1517.50 1440.00 1151.00 831.50 417.50 218.50 9572.07
1974 187.00 260.00 560.00 690.50 1074.00 1325.00 1516.50 1427.50 1326.00 896.00 443.50 0.00 z 9706.00
1975 188.00 254.50 397.00 490.00 1022.00 1260.50 1518.00 1403.00 1236.50 803.50 383.50 241.50 9198.00
1976 227.00 359.00 503.00 655.50 1128.00 1223.50 1493.50 1299.50 1139.50 889.50 535.00 126.50 9579.50
1977 161.00 373.50 365.00 796.00 778.50 1340.50 1484.00 1483.50 1176.50 952.00 487.00 330.00 9727.50
1978 257.50 343.00 596.50 655.00 1009.00 1309.50 1490.00 1484.50 1120.50 1020.50 391.50 70.00 9747.50
1979 117.00 274.00 541.50 0.00 z 0.00 z 1309.50 1515.90 a 1400.00 1342.00 953.50 375.50 165.00 k 7828.90
1980 407.00 431.50 110.00 x 754.00 586.00 l 743.00 m 1578.50 1447.00 1222.00 920.50 466.50 280.50 7507.50
1981 223.50 339.00 416.50 i 790.50 1011.00 1477.00 1565.50 1597.00 1309.50 768.50 0.00 z 0.00 z 9081.50
1982 169.00 416.50 495.00 749.50 1100.50 1239.00 1521.00 1513.00 1158.00 880.50 333.50 180.50 9756.00
1983 150.00 304.00 529.50 595.00 1105.50 1302.00 1472.00 1464.50 1296.00 914.50 505.50 293.50 9932.00
1984 291.00 344.00 616.00 704.50 1257.00 1316.50 1623.00 1548.00 1338.50 784.00 508.50 162.50 9999.00
1985 154.00 320.50 479.50 905.50 1106.00 1444.50 1623.00 1447.00 1002.00 870.50 393.00 213.50 9959.00
1986 372.50 466.00 708.00 771.50 1140.00 1386.00 1434.50 1572.00 1066.50 810.00 542.50 205.50 9999.00
1987 149.50 376.50 536.50 898.50 1082.00 1380.00 1401.50 1458.50 1227.50 988.50 466.50 147.00 9999.00
1988 203.00 415.00 672.50 779.00 976.50 1207.50 1651.50 1521.50 1254.50 1133.50 542.50 219.50 9999.00
1989 165.50 345.50 739.50 1037.00 1124.00 1354.50 1672.50 1479.00 1234.00 841.50 532.50 186.50 9999.00
1990 201.00 312.50 679.50 907.00 1040.50 1354.00 1616.50 1470.50 1284.50 992.00 533.50 139.50 9999.00
1991 150.00 468.00 384.00 746.50 953.77 a 1244.00 1540.50 1471.50 1344.50 1074.00 562.50 231.00 9999.00
1992 181.50 456.00 621.50 945.50 1271.00 1347.50 0.00 z 1638.00 1368.00 1086.50 506.50 178.50 9600.50
1993 239.00 368.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 195.00 x 0.00 z 110.10 b 717.10
1994 70.00 i 82.50 k 550.00 757.00 1080.00 1439.50 1794.50 1676.00 1360.50 919.00 123.50 q 85.50 y 9576.50
1995 0.00 z 0.00 z 212.50 o 725.00 893.00 1099.50 1438.00 1479.00 1367.00 1012.50 666.50 399.50 9080.00
1996 556.00 688.75 a 790.50 961.50 1217.00 1504.50 1754.00 1671.50 1313.00 988.00 628.00 0.00 z 9999.00
1997 422.63 a 501.00 796.50 888.10 a 0.00 z 1353.62 a 1549.50 1621.00 1367.68 b 1037.00 684.83 a 365.50 9999.00
1998 380.78 a 357.50 620.00 716.50 909.33 a 1202.50 1666.50 1713.00 1330.86 a 860.50 339.00 291.92 a 9999.00
1999 352.37 a 0.00 z 507.50 391.00 h 1088.32 c 1012.00 f 1478.50 1455.00 1277.50 1047.36 c 611.50 403.00 b 8221.04
2000 415.83 b 405.00 591.67 b 0.00 z 0.00 z 0.00 z 1482.00 1485.50 1216.50 875.50 378.00 294.00 7144.00
2001 158.50 221.08 d 623.10 a 681.00 1279.50 1387.50 1502.98 a 1569.50 1316.00 1031.00 591.43 b 257.82 a 9999.00
2002 0.00 z 377.50 534.50 808.00 1031.50 850.00 k 0.00 z 1428.00 1198.85 d 897.00 557.00 273.50 7105.85
2003 417.50 146.00 g 268.50 279.50 763.50 1068.50 1342.50 1220.50 1040.50 741.50 56.00 15.50 7214.00
2004 0.00 25.00 0.00 z 217.00 t 802.00 0.00 z 1565.00 1553.50 1276.50 878.00 403.00 225.00 6728.00
2005 283.50 337.00 593.50 680.50 1082.00 1217.50 1671.00 1537.00 1139.50 893.00 537.00 265.00 9999.00
2006 246.50 340.50 410.50 686.50 1194.00 1416.00 1674.50 1468.50 1202.50 840.00 556.50 160.50 9999.00
2007 172.00 379.00 744.52 a 856.00 1165.50 1363.50 1623.50 1576.00 1174.50 858.50 585.00 132.50 9999.00
2008 146.50 323.00 637.00 768.00 1039.50 1358.50 1581.00 1579.00 1298.00 938.00 555.50 196.00 9999.00
2009 259.00 276.50 542.00 716.00 1254.90 e 1178.50 1649.00 1481.50 1345.00 824.50 495.50 131.50 9999.00
2010 193.50 349.00 545.27 c 639.50 894.50 1335.50 1601.50 1459.50 1242.00 921.50 455.00 279.50 9916.27
2011 241.05 b 241.50 533.00 758.79 a 891.00 1205.17 a 1485.42 a 1500.18 c 1306.67 c 943.43 a 378.00 140.50 9624.71
2012 235.37 d 342.00 554.50 785.17 a 1138.00 1311.72 a 1492.65 a 1607.00 1344.83 a 952.98 b 510.52 a 283.02 d 9999.00
2013 114.38 b 274.30 a 670.50 24.50 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 1059.18
Period of Record Statistics
MEAN 193.23 323.45 544.63 740.98 1035.95 1267.87 1531.64 1475.90 1207.40 876.22 445.90 197.29 9785.89
S.D. 98.52 93.62 103.13 119.24 113.43 98.06 79.58 83.25 91.95 97.74 99.95 79.10 474.79
SKEW 0.96 0.24 0.19 -0.60 -0.35 -0.08 0.66 0.18 -0.18 0.17 -0.37 0.43 0.13
MAX 556.00 688.75 805.00 1037.00 1279.50 1504.50 1794.50 1713.00 1368.00 1133.50 684.83 403.00 10712.00
MIN 0.00 25.00 268.50 279.50 763.50 1039.00 1342.50 1220.50 1002.00 659.00 56.00 15.50 8807.00
NO YRS 88 87 86 86 86 85 88 91 91 89 87 86 70