PRINEVILLE 4 NW, OREGON

Monthly Total Growing Degree Days

(356883)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1897 38.50 32.00 40.00 303.00 627.23 a 554.00 686.50 838.50 435.60 e 437.32 c 237.00 e 95.00 4324.65
1898 0.50 132.00 83.00 309.50 534.50 634.00 728.50 915.50 433.00 i 293.50 97.50 9.50 3738.00
1899 17.00 38.00 34.00 46.50 235.50 515.00 753.00 434.00 637.00 326.50 66.50 0.00 3103.00
1900 15.50 0.00 235.50 302.50 495.00 685.00 769.00 613.00 456.00 375.00 140.36 b 121.50 4208.36
1901 88.00 8.50 130.50 235.50 460.00 594.00 775.00 979.50 533.50 315.50 225.00 169.00 4514.00
1902 171.00 108.50 235.50 194.00 533.50 557.50 797.50 752.50 437.50 383.88 a 98.00 7.00 4276.38
1903 0.00 17.00 0.00 z 0.00 z 0.00 z 304.50 q 620.00 670.00 410.50 284.50 105.00 11.00 2118.00
1904 9.50 5.50 39.00 263.00 359.00 g 531.00 737.00 763.00 527.50 302.50 140.00 21.18 a 3339.18
1905 17.50 65.00 140.00 208.00 293.00 517.50 838.00 716.00 497.07 a 157.00 16.50 13.50 3479.07
1906 25.00 27.00 88.50 239.00 372.00 485.00 950.15 a 747.00 512.00 281.50 128.50 34.50 3890.15
1907 2.50 51.50 48.00 151.50 361.67 d 476.50 776.07 b 615.19 b 330.50 f 366.00 30.00 a 21.00 2899.93
1908 11.50 7.00 g 84.50 214.14 a 221.65 a 484.00 904.00 698.50 485.17 a 194.55 b 106.00 11.76 b 3415.77
1909 15.50 45.00 69.00 85.86 a 278.00 556.03 a 651.50 660.00 501.00 261.43 a 70.00 l 0.00 z 3123.33
1910 0.00 z 0.00 z 0.00 z 387.41 a 518.50 538.50 829.77 a 494.00 f 170.00 p 242.00 f 83.00 9.50 2366.68
1911 4.59 d 0.00 b 140.50 183.50 278.50 579.00 791.50 744.50 471.00 224.00 40.00 1.50 3458.59
1912 14.50 20.20 a 21.00 127.00 345.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 528.20
1913 14.98 a 0.00 z 0.00 z 0.00 z 0.00 z 365.50 h 756.50 386.00 r 485.89 b 204.00 113.28 a 4.00 1578.65
1914 39.78 a 25.00 160.50 237.41 a 502.50 537.32 b 831.00 501.50 l 462.12 d 303.50 103.50 0.00 3202.63
1915 6.95 b 34.50 154.00 282.93 a 366.50 527.50 722.82 a 903.65 a 459.00 297.60 a 61.61 b 44.29 c 3861.34
1916 6.50 67.50 156.00 235.86 a 257.00 510.50 659.50 739.00 487.50 142.50 29.00 10.00 3300.86
1917 0.50 9.50 22.50 131.00 281.50 519.31 a 875.00 829.00 583.00 337.00 133.00 138.00 3859.31
1918 30.50 49.50 122.00 161.79 b 257.50 713.00 751.75 e 625.50 611.00 316.64 c 50.50 31.00 3720.68
1919 33.00 6.00 72.50 215.50 402.00 526.00 862.50 806.00 475.50 185.50 67.00 29.50 3681.00
1920 59.00 19.50 60.00 128.00 329.50 572.68 b 833.12 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2001.80
1921 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 530.00 h 395.00 376.50 127.00 50.00 948.50
1922 3.21 b 6.00 33.50 101.90 a 373.00 714.50 1034.00 827.50 0.00 z 337.00 13.00 19.00 3462.60
1923 30.47 b 0.00 z 93.00 173.00 366.50 491.50 793.50 812.50 547.50 213.50 66.00 7.00 3594.47
1924 34.00 62.50 23.50 186.00 532.00 624.00 794.50 773.00 440.50 i 633.50 49.00 n 17.50 3680.50
1925 45.50 80.50 148.00 368.00 525.00 0.00 z 996.50 916.50 0.00 z 141.50 m 91.50 15.50 3187.00
1926 0.00 20.00 0.00 z 249.00 f 425.50 633.00 945.50 774.50 334.00 292.00 146.90 a 19.63 a 3591.03
1927 15.00 49.50 50.00 160.50 327.50 629.50 0.00 z 710.93 a 401.11 c 232.50 m 126.00 13.00 2483.04
1928 8.00 5.70 a 109.00 143.50 507.00 509.00 748.00 630.00 437.00 211.00 57.50 17.00 3382.70
1929 0.00 a 0.00 108.00 109.00 353.50 517.50 703.50 708.00 330.00 204.00 39.50 34.50 3107.50
1930 1.50 87.00 91.00 274.50 291.00 463.50 701.50 728.00 460.00 144.00 67.50 5.68 a 3315.18
1931 29.00 19.00 95.00 238.00 459.00 510.50 747.50 725.50 438.50 228.00 59.50 17.00 3566.50
1932 17.50 44.00 103.50 192.50 337.50 572.00 620.50 624.00 473.00 276.50 116.50 6.00 3383.50
1933 14.50 5.50 86.00 184.00 237.50 631.50 782.00 708.00 379.00 317.50 60.00 109.50 3515.00
1934 37.50 36.50 205.50 373.50 505.00 502.50 719.00 736.50 448.33 c 309.50 110.17 a 11.00 3995.01
1935 19.50 15.00 32.50 127.50 253.50 533.00 673.50 626.00 504.00 190.00 3.50 0.50 2978.50
1936 14.50 1.00 70.00 274.50 386.00 456.50 735.50 714.50 442.50 268.00 40.50 36.00 3439.50
1937 0.00 5.50 94.50 139.00 379.00 560.50 768.00 623.00 494.00 338.00 133.00 39.50 3574.00
1938 8.50 6.50 41.50 219.00 339.50 582.00 799.50 616.50 567.00 229.50 19.00 11.50 3440.00
1939 4.13 a 2.00 142.50 256.00 483.00 459.50 753.00 696.50 504.00 236.00 44.50 78.50 3659.63
1940 9.50 29.00 127.00 169.50 407.00 585.00 710.00 676.50 484.50 263.00 20.00 33.00 3514.00
1941 7.00 33.50 79.00 160.50 325.50 481.50 776.50 691.50 303.62 a 192.50 114.50 42.50 3208.12
1942 11.50 3.11 a 52.00 156.00 293.00 411.50 748.00 711.50 470.50 255.50 45.50 6.00 3164.11
1943 0.50 15.00 70.50 223.50 222.50 406.50 688.00 564.50 540.50 242.00 35.00 14.00 3022.50
1944 0.00 1.00 35.50 115.50 309.00 439.50 710.00 632.50 536.00 373.00 42.50 1.50 3196.00
1945 19.00 26.50 38.50 150.50 375.50 470.50 767.50 704.50 414.50 275.50 41.50 16.50 3300.50
1946 5.50 17.00 39.50 200.50 400.00 498.50 730.50 698.00 413.00 117.00 43.50 52.50 3215.50
1947 6.00 42.50 116.00 198.00 519.50 470.00 703.00 652.00 536.50 324.50 49.50 11.50 3629.00
1948 16.00 25.65 c 27.50 124.00 310.00 640.50 675.00 613.50 388.97 a 231.50 20.00 0.00 3072.62
1949 0.00 23.50 33.50 233.50 474.00 508.50 653.00 641.50 483.00 120.90 a 107.59 a 8.50 3287.49
1950 10.50 59.50 51.50 129.50 313.10 a 521.79 b 718.00 695.84 c 473.50 297.50 119.50 55.50 3445.73
1951 7.48 b 62.00 51.50 183.50 376.50 546.50 739.00 600.88 a 499.14 a 192.00 26.50 4.65 a 3289.65
1952 6.50 10.50 42.50 226.50 396.28 a 458.50 723.50 681.00 561.50 375.00 13.00 15.00 3509.78
1953 84.73 a 30.50 65.50 162.00 259.00 357.50 689.00 665.00 562.50 233.00 168.50 17.00 3294.23
1954 31.00 54.50 22.50 174.00 410.00 421.50 672.50 507.50 395.50 182.90 a 138.00 12.50 3022.40
1955 1.00 6.74 a 35.00 78.00 273.00 555.00 645.00 619.00 479.48 a 288.50 105.00 a 30.00 3115.72
1956 21.50 9.00 93.50 177.00 437.50 447.93 a 761.50 630.00 461.00 203.50 58.50 28.50 3329.43
1957 3.00 40.00 75.50 171.21 a 417.50 546.21 a 634.50 556.50 534.50 182.00 17.50 32.55 a 3210.96
1958 23.50 120.50 39.50 137.50 535.00 615.00 767.00 803.00 437.00 276.00 95.50 49.50 3899.00
1959 65.50 7.50 48.00 164.50 260.00 552.00 757.50 575.00 429.50 272.50 54.00 12.00 3198.00
1960 10.50 29.00 144.50 195.00 311.00 546.00 826.00 616.00 468.62 a 220.62 a 36.50 3.00 3406.74
1961 45.00 68.50 92.00 176.50 324.00 708.00 787.40 a 824.08 a 349.50 197.00 22.00 3.00 3596.98
1962 20.00 34.50 52.00 298.97 a 268.50 521.00 698.50 649.50 495.00 237.15 a 120.00 50.00 3445.12
1963 1.00 106.50 65.00 0.00 z 378.50 480.50 654.00 0.00 z 663.50 0.00 z 63.50 5.50 2418.00
1964 12.00 4.50 45.50 74.50 0.00 z 520.50 730.50 629.00 404.00 233.00 54.00 25.50 2733.00
1965 24.00 44.50 32.00 191.50 299.00 575.17 a 797.00 732.00 358.00 368.00 106.00 16.50 3543.67
1966 10.00 13.00 134.00 192.50 430.50 552.50 722.00 733.50 588.00 240.77 a 0.00 z 31.50 3648.27
1967 25.00 26.00 41.50 30.00 371.00 600.50 797.00 857.00 638.50 272.50 71.00 19.12 a 3749.12
1968 44.00 104.09 a 129.17 a 129.50 379.00 590.00 823.00 0.00 z 524.50 0.00 z 67.00 29.50 2819.76
1969 9.00 9.00 61.50 180.50 502.50 634.50 713.50 681.00 535.00 146.50 85.00 34.00 3592.00
1970 58.00 20.50 59.00 54.00 391.78 b 686.00 828.50 753.50 391.50 228.50 59.00 18.50 3548.78
1971 34.00 30.00 40.50 122.50 384.00 508.00 816.50 860.50 384.50 231.50 55.00 4.50 3471.50
1972 20.00 56.00 170.00 100.00 430.00 611.00 787.00 791.50 385.00 210.50 58.00 40.50 3659.50
1973 28.00 35.00 29.50 154.00 476.48 d 561.50 752.50 699.50 510.50 216.00 62.50 40.50 3565.98
1974 40.50 20.50 81.00 140.00 294.50 693.50 755.00 753.50 567.50 237.50 86.50 18.00 3688.00
1975 32.00 28.50 21.50 58.00 345.50 532.00 889.00 657.00 535.50 271.50 78.00 56.50 3505.00
1976 25.50 21.50 60.50 146.00 394.00 461.50 811.00 697.00 594.50 272.50 159.50 4.00 3647.50
1977 0.50 40.00 39.00 275.00 267.50 682.50 759.00 860.00 449.50 265.50 73.50 59.00 3771.00
1978 19.50 58.00 195.00 138.50 279.50 595.50 780.00 691.50 455.50 309.50 38.50 7.50 3568.50
1979 0.00 7.50 84.50 160.00 431.00 0.00 z 0.00 z 758.50 638.00 370.00 26.50 39.50 2515.50
1980 26.35 a 54.38 a 45.93 d 251.90 a 379.23 a 459.00 788.00 625.00 543.50 279.50 115.50 83.00 3651.28
1981 20.50 58.50 82.00 195.00 360.00 531.00 704.00 809.50 556.00 232.50 88.00 37.00 3674.00
1982 14.00 72.50 33.50 119.50 352.50 583.50 724.00 724.50 426.00 208.00 37.50 15.00 3310.50
1983 41.00 68.50 117.50 121.00 410.50 516.50 674.00 793.50 412.50 293.00 95.00 0.00 a 3543.00
1984 8.00 21.00 107.00 107.00 329.63 a 488.00 805.00 768.00 456.50 182.00 36.00 3.00 3311.13
1985 1.00 12.00 43.00 260.50 381.00 588.50 896.00 675.50 357.00 221.00 40.50 1.50 3477.50
1986 29.50 92.81 a 188.50 126.50 430.50 709.00 640.00 849.50 347.00 258.50 47.00 0.50 3719.31
1987 16.50 32.50 97.50 338.79 a 469.50 668.00 674.50 710.00 0.00 z 0.00 z 70.50 51.31 b 3129.10
1988 16.50 56.50 63.50 276.50 386.00 603.00 822.00 719.50 491.00 456.00 62.00 18.00 3970.50
1989 10.50 9.50 102.00 289.00 365.00 611.50 748.00 694.50 487.50 236.00 71.00 25.00 3649.50
1990 23.50 21.50 107.50 304.00 329.50 617.50 872.00 788.00 651.50 247.50 75.50 14.00 4052.00
1991 11.50 65.00 35.00 136.00 290.50 472.50 832.00 867.50 615.00 313.50 97.50 9.50 3745.50
1992 45.50 90.50 116.00 284.00 568.00 693.50 762.50 784.00 552.00 310.00 43.50 0.00 4249.50
1993 0.00 0.00 99.50 141.00 509.50 551.00 591.00 679.50 532.00 314.50 8.00 30.00 3456.00
1994 26.00 33.50 103.50 266.00 453.50 597.50 848.50 762.00 614.50 204.00 24.50 38.00 3971.50
1995 60.50 120.00 95.00 140.50 390.00 528.50 777.00 674.00 603.00 241.00 152.00 27.90 a 3809.40
1996 20.50 81.30 a 77.50 205.00 300.50 571.50 865.50 797.50 470.50 261.00 55.00 11.00 3716.80
1997 28.00 19.19 a 126.50 170.00 520.00 516.00 724.50 798.00 539.50 219.00 83.00 9.50 3753.19
1998 25.00 20.00 72.00 147.00 297.00 521.50 915.50 816.00 617.00 199.50 68.00 34.50 3733.00
1999 25.00 31.11 a 54.50 69.00 i 293.50 514.82 b 730.22 d 797.73 a 491.00 265.16 c 157.22 c 9.30 a 3369.57
2000 7.20 c 19.33 b 41.52 c 229.00 375.44 d 470.00 f 0.00 z 0.00 z 498.10 a 251.32 c 32.00 j 0.00 z 1421.92
2001 0.00 z 1.50 h 52.00 i 0.00 z 240.00 o 363.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2002 0.50 s 0.00 z 23.50 l 203.50 229.00 k 391.50 k 868.00 722.50 411.50 i 0.00 z 0.00 z 18.50 k 1794.00
2003 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 391.00 k 598.50 j 608.50 h 302.50 o 260.00 l 23.50 o 4.50 o 0.00
2004 14.50 l 8.00 k 134.00 k 185.00 f 244.00 j 443.00 g 697.50 f 566.00 j 294.50 m 118.50 o 32.50 p 10.50 q 0.00
2005 26.00 k 27.00 k 96.50 h 125.00 j 317.50 i 336.00 g 564.00 k 579.50 h 388.00 i 213.00 k 38.00 j 3.50 q 0.00
2006 21.50 l 19.50 j 38.50 k 140.00 j 303.50 i 414.50 k 602.00 j 755.33 e 469.00 i 156.00 j 76.00 n 11.50 t 755.33
2007 8.50 k 33.50 i 81.50 k 91.50 l 197.00 o 403.00 i 643.50 i 573.50 h 311.00 l 202.50 j 72.50 m 34.50 r 0.00
2008 0.00 r 29.00 j 44.00 k 59.50 k 246.00 j 184.50 r 449.50 o 527.50 k 419.00 k 253.50 k 77.00 q 20.00 t 0.00
2009 36.50 30.50 h 24.00 l 140.50 j 344.50 j 611.00 915.00 857.00 675.00 192.00 83.50 34.00 3404.00
2010 52.50 35.00 113.50 156.00 313.00 507.50 829.00 778.50 596.00 357.50 109.50 27.50 3875.50
2011 50.50 44.50 74.00 115.50 258.50 528.50 734.00 883.50 776.50 364.00 67.00 25.00 3921.50
2012 45.00 32.50 100.50 315.00 444.00 550.50 856.00 942.50 722.00 345.50 143.50 30.00 4527.00
2013 15.00 17.00 131.00 14.00 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 163.00
Period of Record Statistics
MEAN 21.96 35.84 83.62 188.37 377.56 549.88 767.38 725.14 494.90 266.73 77.07 26.68 3578.22
S.D. 23.28 30.30 47.94 73.76 89.79 73.93 82.12 95.81 88.81 76.80 45.36 28.92 334.73
SKEW 3.00 1.16 0.99 0.46 0.41 0.29 0.57 0.07 0.44 1.22 0.89 2.46 0.66
MAX 171.00 132.00 235.50 387.41 627.23 714.50 1034.00 979.50 776.50 633.50 237.00 169.00 4527.00
MIN 0.00 0.00 21.00 30.00 221.65 357.50 591.00 434.00 303.62 117.00 3.50 0.00 2978.50
NO YRS 107 103 103 102 102 101 104 101 99 100 102 104 81