IMPERIAL, CALIFORNIA

Monthly Total Growing Degree Days

(044223)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1901 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 457.50 211.50 669.00
1902 211.50 288.50 354.50 748.00 991.50 1197.00 1182.50 1242.00 1070.50 748.00 263.50 103.50 8401.00
1903 204.00 194.00 594.50 728.00 1007.00 1310.00 1393.00 1371.50 1063.00 757.50 0.00 z 129.50 8752.00
1904 100.50 334.50 586.50 619.50 855.50 1106.00 1218.50 1275.50 997.00 615.87 a 448.00 178.50 8335.87
1905 229.00 192.00 452.50 552.50 732.00 1016.00 1265.83 a 1095.50 f 1043.00 690.50 333.00 114.50 6620.83
1906 143.00 349.00 370.93 b 577.50 747.00 993.50 1285.00 1246.09 c 999.00 737.50 343.00 120.00 7911.52
1907 101.00 355.00 365.28 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 376.00 0.00 z 1197.28
1908 143.00 197.00 408.00 601.50 744.00 b 952.50 1339.09 c 1246.41 b 0.00 z 0.00 z 0.00 z 0.00 z 5631.50
1909 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
1910 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 281.00 281.00
1911 184.00 133.00 508.50 592.00 799.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2216.50
1912 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
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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 634.47 a 313.00 188.50 1135.97
1926 130.00 319.50 524.00 688.50 409.50 q 1103.08 d 1247.48 b 1220.50 983.89 c 719.41 b 400.00 112.00 7448.36
1927 164.50 268.00 378.50 622.50 889.00 1019.50 1293.50 1273.77 c 982.50 736.25 a 397.22 c 111.00 8136.24
1928 210.50 227.00 495.00 589.29 b 865.00 1052.00 1247.00 1189.50 1067.00 690.50 344.00 125.50 8102.29
1929 70.00 167.50 370.00 481.50 863.50 1031.38 a 1197.00 1259.50 918.50 0.00 z 276.50 247.50 6882.88
1930 121.50 308.00 382.50 656.00 673.50 996.00 1242.00 1165.00 890.50 627.00 332.00 83.00 7477.00
1931 151.00 239.00 448.00 675.50 928.50 1039.50 1402.00 1238.50 990.00 714.50 274.00 64.00 8164.50
1932 0.00 z 223.00 429.00 578.00 819.50 1025.00 1231.50 1236.50 1068.50 674.00 391.00 54.00 o 7676.00
1933 39.50 71.00 415.50 484.50 724.00 1013.50 1330.00 1285.00 1045.50 865.00 403.33 c 185.50 7862.33
1934 199.50 362.00 699.50 763.00 1000.50 913.50 1355.00 1362.00 1094.00 853.50 467.50 224.00 9294.00
1935 181.00 282.00 335.50 592.00 776.00 1150.00 1241.00 1258.50 1120.50 709.00 284.50 187.00 8117.00
1936 155.00 270.00 531.00 697.00 947.00 1135.00 1314.50 1296.50 1008.50 751.50 369.00 149.50 8624.50
1937 8.00 164.00 349.00 568.50 841.00 1041.50 1381.00 1354.00 1148.50 802.50 429.50 268.50 8356.00
1938 209.50 198.00 353.50 592.00 864.50 1072.00 1292.50 1264.50 1115.50 697.00 217.00 227.00 8103.00
1939 114.50 72.50 416.00 695.50 904.50 1054.50 1307.00 1324.00 966.00 692.50 441.00 301.50 8289.50
1940 241.50 245.00 521.00 669.00 1014.00 1151.00 1262.00 1311.50 1027.00 779.50 331.00 272.50 8825.00
1941 199.00 308.50 427.50 520.00 916.50 1001.00 1288.50 1154.50 874.50 598.00 425.50 195.50 7909.00
1942 219.00 185.50 390.00 572.00 827.50 1067.00 1379.00 1297.00 1017.50 741.50 398.50 238.00 8332.50
1943 191.00 299.50 528.00 663.50 902.00 964.50 1237.00 1204.00 1133.50 769.00 368.50 144.50 8405.00
1944 130.50 134.00 349.00 584.00 816.00 898.00 1178.00 1285.50 1065.50 802.00 328.50 185.50 7756.50
1945 158.50 238.50 320.50 555.00 842.50 1006.50 1301.50 1245.50 1100.50 812.50 353.50 139.50 8074.50
1946 159.00 183.00 382.00 694.00 838.50 1127.50 1285.00 1301.50 1097.50 623.50 270.00 232.00 8193.50
1947 112.00 328.00 459.00 636.50 920.50 1041.50 1312.00 1214.50 1126.00 759.50 240.00 76.50 8226.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1228.50 1279.00 1110.00 793.00 266.00 90.00 4766.50
1949 12.50 127.50 360.00 697.50 831.00 1081.50 1263.00 1234.00 1191.50 668.00 534.50 132.50 8133.50
1950 109.00 307.00 460.50 709.00 790.00 1009.50 1234.50 1255.50 983.00 890.50 514.50 329.50 8592.50
1951 142.50 219.50 384.50 591.00 850.00 995.50 1283.00 1227.00 1104.00 794.50 326.00 159.00 8076.50
1952 102.00 231.00 290.00 585.50 979.50 981.50 1261.50 1307.50 1142.00 974.00 256.00 165.00 8275.50
1953 308.00 237.00 420.00 548.00 697.00 1008.00 1340.00 1260.50 1091.50 784.00 439.50 154.00 8287.50
1954 188.00 404.00 368.50 736.50 880.40 a 1003.00 1329.50 1200.50 1099.00 821.00 508.00 192.50 8730.90
1955 74.00 168.00 421.50 541.50 775.50 1021.00 1199.00 1268.50 1096.00 857.00 402.50 242.50 8067.00
1956 251.50 138.50 460.50 565.50 846.00 1111.50 1246.00 1186.00 1216.50 730.00 364.50 208.50 8325.00
1957 162.00 385.50 463.00 593.50 739.00 1162.00 1337.00 1249.00 1088.50 680.00 309.00 243.50 8412.00
1958 232.50 326.00 332.50 612.00 1011.50 1083.00 1278.50 1329.50 1131.50 878.00 405.50 298.50 8919.00
1959 257.50 144.00 f 524.42 a 729.00 809.00 1166.00 1374.00 1259.50 1012.50 773.50 438.00 192.50 8535.92
1960 108.50 208.50 552.50 693.00 857.50 1187.00 1336.00 1288.00 1156.50 780.50 380.00 183.00 8731.00
1961 249.00 305.50 443.50 668.50 805.00 1142.50 1277.00 1275.50 978.00 729.00 316.00 168.50 8358.00
1962 194.50 261.00 302.00 734.50 727.00 1033.50 1252.50 1353.00 1114.00 806.00 490.00 250.50 8518.50
1963 102.00 429.50 391.50 524.50 911.00 959.50 1274.00 1248.50 1120.00 872.50 436.00 187.00 8456.00
1964 93.00 181.50 358.00 552.50 813.00 1019.00 1306.00 1256.50 1012.00 907.00 329.50 216.00 8044.00
1965 230.00 272.50 376.00 602.00 833.00 917.00 1258.50 1278.50 959.00 880.00 480.00 165.50 8252.00
1966 110.00 169.00 486.50 707.00 941.00 1089.00 1315.00 1321.50 1084.00 761.50 454.50 249.50 8688.50
1967 178.00 287.00 494.50 399.00 822.00 982.50 1343.50 1348.00 1063.50 858.00 534.00 131.50 8441.50
1968 180.00 448.00 494.50 584.50 888.50 1098.50 1282.50 1195.50 1064.50 805.00 477.00 102.00 8620.50
1969 298.50 210.50 412.50 640.50 932.00 986.50 1328.00 1426.50 1162.50 697.00 442.50 239.00 8776.00
1970 194.50 325.00 435.00 508.00 896.50 1105.00 1343.00 1350.00 1035.50 710.50 414.00 160.00 8477.00
1971 237.00 261.00 458.50 555.00 751.50 1025.00 1315.00 1279.50 1076.00 618.00 352.00 103.50 8032.00
1972 111.00 344.50 646.00 650.00 878.50 1084.50 1364.50 1225.50 1028.00 683.00 314.00 164.00 8493.50
1973 120.50 265.00 336.00 555.50 934.50 1138.00 1276.50 1271.50 1013.00 788.50 416.00 233.50 8348.50
1974 198.00 231.50 484.00 621.00 889.50 1181.00 1277.00 1260.50 1158.50 800.00 425.50 146.00 8672.50
1975 166.00 214.00 359.50 411.00 808.00 1052.50 1291.50 1295.00 1132.50 723.50 400.50 221.50 8075.50
1976 243.50 315.00 403.00 530.50 908.00 1105.00 1257.50 1212.50 977.50 768.50 476.50 203.00 8400.50
1977 209.50 371.50 334.50 666.00 700.50 1150.50 1335.00 1285.00 1068.00 876.00 488.50 298.00 8783.00
1978 228.50 296.50 546.00 578.00 891.00 1225.50 1356.50 1288.50 1040.50 922.50 389.50 119.50 8882.50
1979 102.00 249.00 438.00 656.50 843.50 1127.50 1301.50 1200.50 1200.50 866.50 369.00 278.50 8633.00
1980 312.50 381.50 411.00 622.50 741.50 1121.50 1390.50 1275.50 1098.00 825.50 445.50 354.00 8979.50
1981 338.50 330.00 443.50 686.50 881.00 1216.00 1340.00 1361.50 1154.50 713.00 496.00 304.00 9264.50
1982 185.00 330.00 418.50 627.50 816.50 983.50 1256.00 1313.50 1043.50 737.50 356.00 170.50 8238.00
1983 278.50 299.50 470.00 499.50 895.00 1028.00 1301.00 1233.50 1182.50 852.50 446.00 273.50 8759.50
1984 270.50 299.00 518.00 605.50 1022.50 1072.50 1297.50 1298.00 1198.50 707.50 400.50 146.50 8836.50
1985 153.00 240.00 422.50 728.00 905.00 1157.00 1343.50 1306.00 926.50 754.00 335.50 226.00 8497.00
1986 352.50 374.50 604.50 678.00 921.50 1175.50 1276.00 1355.50 960.00 727.50 450.50 216.50 9092.50
1987 175.00 281.00 435.00 781.00 899.00 1143.00 1233.50 1278.00 1102.50 910.50 408.50 145.50 8792.50
1988 174.50 346.50 508.50 620.50 845.50 1059.00 1289.00 1262.00 1054.50 933.50 442.50 212.50 8748.50
1989 142.50 299.00 583.00 806.00 911.50 1106.50 1323.00 1221.50 1078.00 761.00 429.00 202.50 8863.50
1990 160.00 234.50 509.50 707.50 833.00 1119.00 1307.50 1216.50 1096.00 788.00 406.50 103.00 8481.00
1991 154.00 400.50 315.00 603.50 776.50 960.00 1204.00 1269.00 1112.50 922.50 413.50 187.50 8318.50
1992 181.00 360.00 432.00 728.50 923.50 1038.00 1225.00 1301.00 1139.50 823.50 309.00 70.50 8531.50
1993 143.00 241.50 543.00 698.50 903.00 1105.50 1222.50 1248.00 1071.50 830.50 334.50 150.50 8492.00
1994 234.00 195.50 524.00 640.50 803.00 1160.50 1311.50 1355.50 1131.00 756.00 207.00 113.50 8432.00
1995 170.50 399.00 455.50 569.50 717.00 982.00 1288.00 1363.00 1208.00 814.00 552.00 243.50 8762.00
1996 243.00 369.50 501.00 679.50 950.50 1081.50 1273.50 1295.50 1027.00 744.00 400.50 194.50 8760.00
1997 216.50 224.50 514.50 591.00 1007.50 987.00 1191.50 1320.50 1134.00 724.50 446.00 113.00 8470.50
1998 204.00 207.50 391.00 511.00 708.50 956.50 1293.50 1322.00 1043.50 686.50 349.00 165.50 7838.50
1999 207.00 248.50 365.50 450.50 814.00 1008.50 1229.00 1236.00 1079.50 839.00 493.50 214.00 8185.00
2000 282.00 337.50 452.50 742.50 988.00 1151.00 1290.50 1326.00 1094.50 731.00 264.00 269.00 8928.50
2001 155.00 214.50 523.50 600.00 1051.00 1183.00 1290.00 1328.50 1186.00 909.50 544.50 144.50 9130.00
2002 186.00 297.50 423.00 665.00 877.00 1149.00 1333.00 1274.00 1146.50 780.50 493.00 212.50 8837.00
2003 432.00 300.50 528.50 550.00 914.00 1082.00 1366.50 1354.50 1220.00 1009.00 347.50 211.00 9315.50
2004 220.50 222.00 704.00 693.50 977.50 1091.50 1301.50 1299.50 1084.00 728.50 313.00 196.00 8831.50
2005 251.00 254.50 496.50 604.00 907.50 1036.50 1301.00 1269.00 1072.50 804.00 487.00 261.50 8745.00
2006 253.00 341.00 403.50 612.50 989.00 1248.50 1365.50 1278.50 1108.50 786.50 503.00 176.00 9065.50
2007 144.00 318.00 573.50 668.00 921.50 1120.50 1336.50 1353.00 1061.00 784.50 493.00 86.00 8859.50
2008 108.50 259.00 477.50 582.00 776.50 1101.50 1242.50 1213.50 1067.50 781.00 495.50 163.00 8268.00
2009 269.00 250.00 464.00 598.00 0.00 z 0.00 z 1401.00 1295.00 1155.50 714.50 440.50 145.50 6733.00
2010 214.00 267.00 417.00 514.50 784.50 0.00 z 1313.00 1275.50 1097.00 719.00 345.00 232.50 7179.00
2011 179.50 154.50 458.00 612.00 700.50 1042.00 1279.00 1316.00 1070.50 739.50 261.50 25.00 7838.00
2012 138.50 192.00 334.50 543.50 869.50 1028.00 1158.50 1200.00 1049.50 825.00 485.00 216.50 8040.50
2013 155.50 207.50 610.50 20.00 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 973.50
Period of Record Statistics
MEAN 182.54 266.00 448.57 618.97 860.69 1071.17 1290.84 1276.68 1075.85 774.59 393.82 185.86 8465.09
S.D. 71.11 77.92 85.99 80.42 87.06 79.96 53.41 51.75 72.23 82.72 80.68 64.98 377.57
SKEW 0.40 -0.07 0.62 -0.16 -0.05 0.28 -0.10 0.13 -0.36 0.32 -0.20 0.10 0.07
MAX 432.00 448.00 704.00 806.00 1051.00 1310.00 1402.00 1426.50 1220.00 1009.00 552.00 354.00 9315.50
MIN 8.00 71.00 290.00 399.00 673.50 898.00 1158.50 1154.50 874.50 598.00 207.00 25.00 7477.00
NO YRS 94 94 95 93 91 90 93 92 92 92 94 94 83