MITCHELL CAVERNS, CALIFORNIA

Monthly Total Growing Degree Days

(045721)

Base Temperature = 40 F

File last updated on Jul 24, 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
1958 0.00 z 0.00 z 134.50 l 498.50 1000.50 1125.00 d 1322.00 1340.00 1108.50 909.00 484.14 a 459.50 8247.14
1959 306.79 b 151.50 525.00 773.50 804.50 1217.50 1445.00 1223.00 1004.00 875.00 523.50 289.00 9138.29
1960 121.00 118.00 545.00 652.50 881.00 1265.50 1402.50 1333.00 1142.00 743.00 381.50 262.00 8847.00
1961 328.00 279.50 330.00 637.50 792.50 1217.00 1391.50 1258.50 933.50 744.50 288.50 204.00 8405.00
1962 263.50 234.50 243.00 828.21 b 757.43 a 1104.00 1304.00 1359.35 a 1117.00 838.55 a 563.00 363.50 8976.05
1963 191.00 431.50 344.00 432.93 a 909.50 988.45 a 1341.00 1228.00 1120.00 835.00 422.59 a 348.23 a 8592.20
1964 149.32 a 200.68 d 300.70 a 502.78 c 779.65 a 1075.56 c 1333.50 1273.07 a 1030.86 a 984.25 a 319.29 b 229.40 a 8179.04
1965 304.66 b 303.92 d 292.36 b 454.66 a 619.50 f 747.00 g 1291.67 a 1292.70 a 928.97 a 995.50 420.50 190.00 6474.92
1966 138.43 b 129.00 489.50 740.36 b 974.00 1115.69 a 1290.12 a 1355.00 1095.00 813.48 b 449.50 267.00 8857.08
1967 264.00 351.17 d 438.43 c 280.00 c 886.37 d 1002.86 b 1349.00 1364.00 1016.50 935.88 b 552.00 153.00 8593.20
1968 214.93 a 400.50 436.07 a 543.00 867.48 a 1208.50 1340.00 1165.00 1101.00 822.50 431.50 143.50 8673.98
1969 259.00 95.00 322.50 590.50 914.50 1008.00 1335.50 1425.00 1131.00 669.50 425.50 315.00 8491.00
1970 200.50 293.50 353.00 429.00 926.50 1101.00 1382.17 b 1327.12 b 1026.50 722.50 439.50 182.00 8383.29
1971 298.50 278.50 463.50 514.00 690.00 1051.07 b 1386.00 1230.50 1045.50 622.07 a 367.76 a 52.00 7999.40
1972 141.00 l 55.50 w 0.00 z 472.00 j 698.00 f 1108.93 b 1430.65 a 1213.13 a 968.04 b 560.58 a 242.68 b 168.95 a 5692.96
1973 97.43 c 171.77 b 126.00 478.33 c 903.00 1115.50 1335.50 1262.00 1037.00 788.95 a 357.32 b 273.83 d 7946.64
1974 134.00 231.28 c 390.60 a 555.00 c 958.33 b 1303.50 1308.72 a 1286.00 1128.75 b 803.93 a 450.50 183.50 8734.11
1975 266.50 188.00 288.30 a 333.00 841.50 1105.00 1317.00 1272.00 1112.50 706.28 a 438.50 316.95 b 8185.53
1976 333.00 282.50 349.50 459.00 940.50 1115.17 a 1335.50 1197.50 932.00 750.00 557.50 285.50 8537.67
1977 186.00 364.00 229.40 a 648.00 592.00 1105.50 1246.50 1203.00 1010.00 857.50 536.50 359.50 8337.90
1978 143.00 206.50 418.50 444.50 815.00 1187.50 1351.50 1257.00 990.00 911.00 326.50 129.50 8180.50
1979 36.00 193.50 300.00 594.00 862.00 1171.50 1333.52 a 1156.00 1175.50 814.50 327.50 336.00 8300.02
1980 214.00 322.00 256.00 570.50 666.00 0.00 z 1287.50 1259.63 a 1047.50 547.00 f 510.00 435.50 6568.63
1981 313.00 295.00 304.12 b 679.00 822.02 a 1291.55 a 1333.50 1325.50 1035.00 605.53 a 489.50 328.50 8822.22
1982 178.50 265.50 268.00 538.00 835.00 1041.00 1236.00 1233.00 939.00 659.00 275.50 150.00 7618.50
1983 262.00 217.50 280.50 325.00 857.50 1028.50 1250.00 1133.50 1042.00 727.50 343.50 216.50 7684.00
1984 268.00 255.00 455.50 518.00 1047.50 1006.50 1207.50 1151.00 1074.50 554.00 309.50 102.50 7949.50
1985 149.00 228.00 296.50 696.00 877.00 1202.50 1376.00 1277.00 822.50 733.00 289.00 291.50 8238.00
1986 388.00 295.00 526.50 553.00 895.00 1180.50 1208.00 1300.50 833.50 666.50 405.50 197.00 8449.00
1987 162.50 207.00 290.50 716.50 826.00 1173.50 1175.00 1242.00 1063.50 845.00 296.50 105.50 8103.50
1988 171.00 316.00 418.50 543.00 814.00 1072.50 1347.50 1187.50 997.50 969.50 359.00 210.00 8406.00
1989 142.50 222.50 482.50 784.50 853.50 1126.00 1378.50 1169.00 1029.00 750.50 531.50 334.50 8804.50
1990 183.00 209.50 477.50 631.00 800.50 1177.50 0.00 z 1241.00 1072.00 818.00 416.00 153.00 7179.00
1991 168.50 415.50 178.00 496.50 746.50 974.00 1268.50 1230.50 1079.00 868.00 392.00 209.00 8026.00
1992 208.50 270.50 323.00 712.00 923.50 0.00 z 1260.00 1292.00 1118.00 815.00 303.00 65.00 7290.50
1993 108.00 134.00 467.00 631.50 874.00 999.00 984.50 1037.00 856.00 577.50 320.00 219.50 7208.00
1994 300.50 136.50 519.00 626.00 816.50 1273.00 1362.00 878.50 k 997.00 695.00 174.00 193.00 7092.50
1995 117.50 423.50 336.00 504.50 681.00 1010.00 1351.50 1391.50 1143.50 872.00 628.00 295.50 8754.50
1996 271.50 359.50 455.50 704.00 935.50 1191.00 1421.00 1359.50 1020.50 730.50 440.00 232.00 9120.50
1997 222.50 246.00 634.00 593.00 1097.50 1067.00 1274.50 1332.00 1071.00 739.00 412.00 161.50 8850.00
1998 232.50 80.50 342.50 433.50 648.00 959.50 1360.00 1342.00 970.50 686.50 402.50 274.00 7732.00
1999 302.00 267.50 396.50 387.00 801.50 1047.50 1228.00 1232.25 a 1068.62 a 958.93 a 578.57 b 262.97 b 8531.34
2000 297.17 b 243.91 a 372.00 b 708.62 a 1003.00 1191.43 b 1339.00 1285.00 0.00 z 681.00 261.00 356.50 7738.63
2001 175.67 a 132.16 c 431.00 491.50 1065.00 1178.00 1259.50 0.00 z 1178.00 918.00 476.50 149.46 c 7454.79
2002 229.00 335.48 a 352.50 270.50 q 819.43 a 1194.00 1375.50 1318.00 1108.00 724.00 500.00 161.00 8116.92
2003 460.50 193.00 391.00 406.00 881.50 1144.50 1421.00 1267.50 1128.00 1025.50 248.00 206.50 8773.00
2004 206.50 97.00 653.50 558.00 890.00 1124.50 1316.50 1233.00 1039.00 648.50 259.50 184.00 8210.00
2005 169.50 138.78 e 331.50 0.00 z 0.00 z 792.00 h 1379.50 1206.50 994.00 747.50 519.50 297.00 5783.78
2006 240.50 358.00 208.73 a 525.56 c 33.50 z 0.00 z 126.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1332.79
Period of Record Statistics
MEAN 220.80 246.16 375.17 559.16 857.18 1121.50 1318.58 1262.33 1040.03 781.25 405.12 235.49 8395.63
S.D. 82.16 91.65 112.27 126.32 106.53 89.05 79.49 75.37 83.34 118.65 104.83 91.13 438.69
SKEW 0.40 0.16 0.31 0.02 -0.16 0.08 -1.64 -0.35 -0.72 0.10 0.01 0.27 -0.52
MAX 460.50 431.50 653.50 828.21 1097.50 1303.50 1445.00 1425.00 1178.00 1025.50 628.00 459.50 9138.29
MIN 36.00 80.50 126.00 280.00 592.00 959.50 984.50 1037.00 822.50 554.00 174.00 52.00 7208.00
NO YRS 47 47 47 46 45 44 47 46 47 47 48 48 37