ALTURAS RANGER STATION, CALIFORNIA

Monthly Total Growing Degree Days

(040161)

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
1905 0.00 z 0.00 z 0.00 z 0.00 z 88.72 b 282.00 617.00 519.50 233.00 40.00 0.00 0.00 1780.22
1906 0.00 0.00 0.00 z 34.50 83.50 205.50 644.50 531.50 232.50 63.50 0.50 0.00 1796.00
1907 0.00 0.00 0.00 35.50 109.00 214.00 460.50 381.50 200.50 149.50 0.00 0.00 1550.50
1908 0.00 0.00 4.50 27.50 38.50 197.50 617.50 470.50 262.50 31.50 0.00 0.00 1650.00
1909 0.00 0.00 0.00 4.00 66.00 302.50 398.00 453.50 237.00 47.50 2.50 0.00 1511.00
1910 0.00 0.00 7.50 61.00 196.50 290.50 593.00 404.50 182.50 49.00 6.00 0.00 1790.50
1911 0.00 0.00 6.50 14.00 52.00 300.00 558.00 402.00 86.50 18.00 0.00 0.00 1437.00
1912 0.00 0.00 0.00 1.50 101.00 297.00 458.50 416.50 181.50 11.00 1.00 0.00 1468.00
1913 0.00 0.00 0.50 20.50 171.00 255.00 485.00 541.50 302.00 53.00 4.00 0.00 1832.50
1914 0.00 0.00 0.50 40.50 197.00 318.00 563.50 549.00 213.50 56.50 0.00 0.00 1938.50
1915 0.00 0.00 0.00 59.50 83.50 293.00 511.50 595.72 a 216.50 38.50 0.00 0.00 1798.22
1916 0.00 0.00 3.00 20.50 55.50 266.50 421.00 424.00 253.00 23.00 0.00 0.00 1466.50
1917 0.00 0.00 0.00 11.50 60.50 294.00 660.50 592.00 281.50 143.00 2.50 0.00 2045.50
1918 0.00 0.00 0.50 13.50 75.50 488.00 486.50 398.50 311.50 78.50 0.00 0.00 1852.50
1919 0.00 0.00 0.00 54.50 208.00 276.00 590.00 494.00 214.00 5.00 3.00 0.00 z 1844.50
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 0.00 z 0.00 z 0.00 z 0.00
1926 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
1927 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
1928 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
1929 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
1930 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
1931 0.00 z 0.00 z 0.00 z 0.00 z 143.50 j 264.11 b 580.22 a 467.00 110.17 a 2.07 a 0.00 0.00 b 1423.56
1932 0.00 0.00 0.00 a 1.00 52.70 a 284.50 454.00 436.00 292.24 a 57.00 0.00 a 0.00 1577.44
1933 0.00 0.00 a 0.00 24.50 69.00 329.00 604.50 511.00 133.50 107.50 0.00 0.00 a 1779.00
1934 0.00 a 0.00 b 45.98 a 93.89 c 228.88 a 295.50 584.50 580.00 321.00 64.50 0.00 0.00 2214.26
1935 0.00 0.00 0.00 10.00 116.77 a 349.00 448.50 454.87 e 186.00 i 43.52 e 0.00 c 0.00 b 1422.65
1936 0.00 a 0.00 a 0.55 c 60.00 e 157.38 e 332.68 b 581.25 a 475.91 d 223.89 c 81.67 e 0.00 a 0.00 b 1913.34
1937 0.00 m 0.00 b 0.00 p 17.50 160.50 316.00 579.50 431.50 294.00 33.50 0.00 0.00 1832.50
1938 0.00 0.00 0.00 28.50 139.50 357.50 511.50 367.00 232.00 12.50 0.00 0.00 1648.50
1939 0.00 0.00 0.00 42.00 142.00 245.50 503.00 469.50 208.00 9.50 0.00 0.00 1619.50
1940 0.00 0.00 6.00 32.00 231.50 420.50 424.70 a 485.00 197.50 69.00 0.00 0.00 c 1866.20
1941 0.00 0.00 3.00 7.50 107.00 199.20 e 491.00 384.50 108.00 4.50 4.00 0.00 1308.70
1942 0.00 a 0.00 0.00 6.50 68.00 214.50 489.50 433.00 306.50 69.00 0.00 0.00 1587.00
1943 0.00 0.00 c 0.00 25.50 73.00 123.10 a 454.00 278.50 309.50 54.50 0.00 0.00 1318.10
1944 0.00 0.00 0.00 4.00 75.50 127.00 424.00 314.50 211.00 51.50 0.00 0.00 1207.50
1945 0.00 0.00 0.00 19.50 120.00 233.00 528.50 415.00 184.50 129.50 2.00 0.00 1632.00
1946 0.00 0.00 0.50 65.00 121.50 216.50 490.50 494.00 172.00 9.00 0.00 0.00 1569.00
1947 0.00 0.00 1.03 a 42.50 233.50 201.50 398.50 373.50 239.00 76.50 3.00 0.00 1569.03
1948 0.00 0.00 a 0.00 0.50 77.50 252.50 372.00 344.00 194.50 49.50 0.00 0.00 1290.50
1949 0.00 0.00 0.00 a 39.64 b 155.00 268.50 460.00 384.00 278.00 28.50 1.61 b 0.00 1615.25
1950 0.00 b 0.00 0.00 14.50 163.50 261.50 559.00 497.55 a 284.44 c 93.00 6.00 0.00 1879.49
1951 0.00 0.00 0.50 42.00 125.00 342.50 478.50 486.50 308.00 30.43 d 0.00 f 0.00 a 1813.43
1952 0.00 0.00 c 0.00 43.85 d 157.67 b 215.19 d 572.00 456.22 a 324.31 a 109.00 f 0.00 0.00 e 1769.24
1953 0.00 i 0.00 g 0.00 e 19.00 f 37.09 c 144.64 b 392.50 f 280.00 j 366.67 c 69.75 c 1.50 0.00 j 619.65
1954 0.00 b 0.00 b 0.00 b 53.33 c 210.80 a 241.50 491.00 322.50 178.39 b 53.00 1.00 0.00 1551.53
1955 0.00 b 0.00 0.00 2.00 j 110.00 332.50 391.00 509.50 285.00 61.00 i 0.00 d 0.00 a 1628.00
1956 0.00 0.00 0.50 i 39.00 167.50 285.50 564.00 385.00 239.50 90.50 0.00 0.00 a 1771.00
1957 0.00 d 0.00 1.50 19.00 99.50 369.50 462.50 367.50 336.50 10.50 0.00 0.00 1666.50
1958 0.00 1.00 0.00 18.00 236.00 292.50 559.00 585.50 285.00 124.00 10.50 2.00 2113.50
1959 0.00 0.00 2.50 48.00 69.00 378.50 577.00 438.00 198.00 58.50 0.00 0.00 1769.50
1960 0.00 0.00 21.70 a 23.50 71.00 423.50 613.50 401.00 304.50 80.50 0.00 0.00 1939.20
1961 0.00 1.00 0.00 49.50 91.45 a 457.00 530.00 548.50 170.50 103.00 0.00 0.00 1950.95
1962 0.00 0.00 0.00 57.50 66.00 308.50 482.00 422.50 303.00 61.50 13.00 0.50 1714.50
1963 0.00 3.50 0.50 5.00 221.00 264.00 359.00 389.50 307.50 87.00 3.50 0.00 1640.50
1964 0.00 0.00 0.00 18.50 82.00 192.50 491.00 400.50 173.00 82.50 1.00 0.00 1441.00
1965 0.00 0.00 0.00 44.50 85.50 238.50 315.50 f 408.00 185.50 90.86 b 10.80 e 0.00 c 1063.66
1966 0.00 0.00 15.50 53.50 228.50 287.50 408.88 b 544.50 278.65 d 59.23 c 1.00 i 0.00 g 1876.27
1967 0.00 c 0.00 0.00 0.00 b 171.00 305.00 576.00 623.00 355.50 32.50 11.00 0.00 2074.00
1968 0.00 0.00 4.00 30.00 109.00 331.50 604.00 354.00 268.50 72.00 2.00 0.00 1775.00
1969 0.00 0.00 6.50 24.00 232.50 343.50 513.00 430.00 274.00 5.00 0.00 0.00 1828.50
1970 0.00 0.00 0.00 1.50 146.00 336.00 504.00 439.00 165.50 50.00 0.00 0.00 1642.00
1971 0.00 0.00 2.00 7.50 54.50 167.50 499.00 554.00 136.00 66.50 0.00 0.00 1487.00
1972 0.00 0.00 9.00 10.50 126.50 312.50 494.50 461.50 153.50 54.50 j 0.00 d 0.00 1568.00
1973 0.00 0.00 0.00 7.00 165.50 275.50 525.00 403.00 a 181.00 17.10 b 0.00 0.00 q 1574.10
1974 0.00 a 0.00 0.00 3.50 80.00 326.00 405.00 420.50 267.00 0.00 z 0.56 c 0.00 k 1502.56
1975 0.00 b 0.00 0.00 0.00 60.50 219.50 478.50 326.50 275.50 60.00 0.00 c 0.00 1420.50
1976 0.00 0.00 1.50 8.50 101.50 177.00 475.91 d 272.00 253.00 20.00 o 1.00 0.00 1290.41
1977 0.00 0.00 0.00 21.50 18.00 398.50 459.00 505.00 201.00 51.50 0.00 0.00 1654.50
1978 0.00 0.00 13.50 7.00 39.00 218.50 435.00 425.00 154.50 69.00 0.00 0.00 a 1361.50
1979 0.00 0.00 0.00 10.00 118.50 255.00 c 461.50 365.00 271.00 78.00 g 0.00 0.00 d 1481.00
1980 0.00 c 0.00 a 0.00 n 35.00 77.50 151.50 472.50 366.00 218.50 112.00 9.00 0.00 1442.00
1981 0.00 0.00 a 0.00 34.50 109.10 e 317.14 b 477.00 502.00 283.50 13.00 3.00 0.00 a 1739.24
1982 0.00 0.00 0.00 3.00 83.70 a 247.50 403.00 453.00 170.50 23.50 0.00 0.00 1384.20
1983 0.00 0.00 2.50 0.00 141.50 187.50 325.00 486.00 216.00 50.00 5.50 0.00 1414.00
1984 0.00 0.00 0.50 9.00 113.50 171.50 567.50 457.00 225.50 22.50 0.00 0.00 1567.00
1985 0.00 0.00 0.00 42.50 84.50 388.00 586.50 362.50 121.00 20.00 0.00 0.00 1605.00
1986 0.00 3.50 5.00 19.50 133.50 406.07 b 414.50 541.00 146.50 28.50 0.00 0.00 1698.07
1987 0.00 0.00 0.00 57.00 195.30 a 369.50 382.50 465.50 267.00 116.50 3.00 0.00 1856.30
1988 0.00 0.50 0.00 37.50 104.00 316.00 615.00 511.00 229.50 95.00 11.50 0.00 1920.00
1989 0.00 0.00 1.00 50.00 84.00 315.50 426.00 374.00 204.50 23.00 0.00 0.00 1478.00
1990 0.00 0.00 0.00 49.00 55.00 233.00 555.00 473.00 262.00 41.50 0.00 0.00 1668.50
1991 0.00 0.00 0.00 2.50 36.00 162.50 446.50 482.50 310.00 129.50 5.00 0.00 1574.50
1992 0.00 0.00 0.00 41.00 245.50 410.50 463.50 486.00 238.00 48.00 0.50 0.00 1933.00
1993 0.00 0.00 5.50 3.00 129.50 177.50 267.50 391.00 240.50 50.50 0.00 0.00 1265.00
1994 0.00 0.00 2.00 38.00 165.00 281.50 610.00 443.00 279.50 14.50 0.00 0.00 1833.50
1995 0.00 0.00 0.00 0.50 87.00 227.00 468.00 414.50 292.00 16.00 5.00 0.00 1510.00
1996 0.00 0.50 0.00 a 29.50 93.00 333.50 618.00 480.50 192.50 102.50 1.50 0.00 1851.50
1997 1.50 0.00 6.50 18.50 211.00 263.00 470.00 431.50 237.00 28.00 0.00 0.00 1667.00
1998 0.00 0.00 0.00 26.00 24.00 220.00 565.50 520.00 327.50 25.50 0.00 0.00 1708.50
1999 0.00 0.00 0.00 b 15.00 a 114.00 251.50 433.00 419.00 258.00 40.30 a 4.14 a 0.00 1534.94
2000 0.00 0.00 0.00 a 21.67 c 118.83 d 373.50 449.50 440.89 d 204.00 31.00 c 0.00 0.00 b 1639.39
2001 0.00 b 0.00 0.00 26.11 c 223.50 303.00 498.50 504.00 260.50 67.50 0.00 a 0.00 1883.11
2002 0.00 0.00 0.00 36.00 122.00 368.50 640.50 436.50 263.00 19.50 0.00 0.00 1886.00
2003 0.00 0.00 12.00 0.00 179.69 d 390.00 629.00 470.34 b 291.00 124.00 c 0.00 e 0.00 z 2096.03
2004 0.00 0.00 6.50 22.00 98.00 329.50 562.00 492.50 182.78 c 67.50 0.00 0.00 g 1760.78
2005 0.00 e 0.00 0.00 1.73 d 79.00 187.50 448.50 i 487.00 148.85 d 1.50 k 0.00 h 0.00 904.08
2006 0.00 f 0.00 e 0.00 20.00 144.50 381.00 614.00 385.50 59.00 v 0.00 z 0.00 q 0.00 e 1545.00
2007 0.00 e 0.00 f 0.00 b 33.50 f 88.00 i 161.00 g 382.00 h 235.50 m 112.50 k 1.15 d 0.00 g 0.00 h 1.15
2008 0.00 f 0.00 h 0.00 z 1.15 d 95.50 i 205.50 h 413.50 h 87.50 z 225.50 i 51.50 g 10.50 z 0.00 j 1.15
2009 0.00 k 0.00 j 0.00 j 30.00 g 66.50 n 251.50 f 391.50 h 292.50 l 234.50 i 6.00 j 0.00 k 0.00 u 0.00
2010 0.00 q 0.00 h 0.00 h 0.00 h 0.50 k 164.00 h 390.00 j 336.00 i 155.00 i 31.00 k 4.00 j 0.00 j 0.00
2011 0.00 k 0.00 h 1.00 h 0.00 i 16.00 i 161.50 h 228.00 p 375.00 h 271.50 h 9.00 j 0.00 i 0.00 j 0.00
2012 0.00 k 0.00 i 0.00 i 30.00 i 101.00 i 165.00 i 371.00 j 408.50 h 223.50 k 85.77 a 0.50 0.00 a 86.27
2013 0.00 b 0.00 0.00 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
Period of Record Statistics
MEAN 0.02 0.11 2.30 25.21 120.13 283.23 504.24 447.67 235.70 55.00 1.60 0.03 1670.33
S.D. 0.16 0.54 6.07 19.85 57.99 76.44 80.42 71.16 60.77 35.96 3.01 0.22 216.70
SKEW 9.22 5.67 4.98 0.69 0.53 0.15 -0.20 0.05 -0.21 0.61 2.26 8.38 0.12
MAX 1.50 3.50 45.98 93.89 245.50 488.00 660.50 623.00 366.67 149.50 13.00 2.00 2214.26
MIN 0.00 0.00 0.00 0.00 18.00 123.10 267.50 272.00 86.50 1.15 0.00 0.00 1207.50
NO YRS 88 89 87 88 90 91 88 90 89 85 88 85 68