CONCORD WASTEWATER PLAN, CALIFORNIA

Monthly Total Growing Degree Days

(041967)

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
1991 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 651.00 562.50 210.50 17.00 1441.00
1992 20.00 182.00 229.00 403.50 591.50 572.00 708.00 754.50 632.00 555.50 194.50 33.00 4875.50
1993 22.00 46.00 269.50 299.00 489.00 671.50 689.00 730.00 645.00 497.50 147.50 44.50 4550.50
1994 23.50 46.50 243.00 325.00 455.00 606.00 660.00 715.50 613.50 448.50 49.50 7.00 4193.00
1995 113.00 131.00 142.50 268.50 394.50 563.00 740.00 762.50 664.50 527.50 310.00 138.00 4755.00
1996 44.50 179.00 238.50 354.00 523.00 655.00 782.50 783.00 588.50 457.50 195.00 127.00 4927.50
1997 76.50 115.50 278.00 369.00 638.00 633.00 734.00 720.50 714.00 436.00 228.00 22.50 4965.00
1998 76.50 59.00 203.00 247.50 292.00 489.50 0.00 z 782.50 656.00 396.00 149.00 28.00 3379.00
1999 49.50 57.50 93.50 278.50 373.03 a 546.21 a 657.00 690.00 615.52 a 519.50 246.00 45.50 4171.76
2000 88.50 118.59 a 229.00 357.00 0.00 z 620.50 625.50 695.50 656.50 407.13 a 90.50 43.00 3931.72
2001 3.00 65.50 281.00 226.00 648.50 682.50 647.00 689.50 578.00 519.00 237.00 35.13 a 4612.13
2002 25.50 107.50 152.50 287.00 423.00 607.00 707.00 658.00 638.00 442.00 209.50 72.50 4329.50
2003 97.00 78.50 250.00 178.50 455.50 595.50 778.50 709.50 683.00 551.00 120.50 61.50 4559.00
2004 34.00 79.50 378.50 383.50 500.50 602.50 681.50 745.00 682.00 408.50 144.50 46.50 4686.50
2005 11.50 135.00 261.00 273.50 465.00 525.50 784.00 713.50 542.50 457.50 231.50 112.00 4512.50
2006 55.00 137.00 78.00 259.00 494.50 668.00 834.00 654.50 578.00 400.50 201.50 47.50 4407.50
2007 16.00 105.00 293.00 340.50 486.00 614.00 697.50 745.50 582.00 379.50 201.00 35.50 4495.50
2008 16.50 84.50 179.50 278.50 487.50 645.50 718.50 751.50 625.00 c 496.00 221.00 15.50 4519.50
2009 49.00 62.00 190.00 305.00 504.50 547.50 b 679.50 718.88 b 712.00 394.00 145.50 16.00 4323.88
2010 35.50 114.50 194.50 208.00 369.50 603.62 a 629.00 630.00 671.50 448.00 200.50 84.00 4188.62
2011 39.00 65.00 153.45 a 283.00 375.10 a 551.11 c 682.52 a 676.66 b 701.50 471.20 a 113.00 50.63 a 4162.17
2012 49.60 a 106.68 a 153.50 320.00 509.00 613.85 d 694.52 e 440.50 l 390.00 i 445.50 179.50 52.00 3124.14
2013 10.00 28.50 194.50 9.50 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 233.00
Period of Record Statistics
MEAN 43.44 95.65 212.98 297.36 473.73 600.63 706.48 716.33 639.52 464.56 182.98 51.56 4513.06
S.D. 30.33 41.62 69.77 58.04 89.18 50.80 55.45 42.11 47.50 56.56 58.57 35.61 258.69
SKEW 0.77 0.46 0.12 -0.07 0.14 -0.31 0.61 -0.25 -0.23 0.27 -0.28 1.15 0.24
MAX 113.00 182.00 378.50 403.50 648.50 682.50 834.00 783.00 714.00 562.50 310.00 138.00 4965.00
MIN 3.00 28.50 78.00 178.50 292.00 489.50 625.50 630.00 542.50 379.50 49.50 7.00 4162.17
NO YRS 22 22 22 21 20 21 20 20 21 22 22 22 18