AGROCLIMATOGICAL DATA 2007
Station     : Ratchaburi Elevation of station above MSL 5.00  m.
Latitude    : 13.5 N Hight of thermometer above ground - m.
Longtitude : 99.8 E Hight of wind vane above ground  - m.
Hight of rain gauge - m.
  Air temerature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Extreme Maximum 35.7 36.7 39.5 39.3 36.5 36.5 35.0 36.2 35.3 35.0 31.5 35.2 39.5
  Date 20 25 16 22 26 16 27 14 8 7 17 19 16-Mar
  Mean Maximum 32.3 34.2 36.7 36.6 33.4 34.8 32.8 33.2 32.8 31.2 29.5 32.5 33.3
  Mean 26.4 27.6 30.4 30.9 29.3 30.2 28.8 29.0 28.6 27.8 25.3 26.9 28.4
  Mean Minimum 20.4 20.8 24.0 25.2 25.1 25.5 24.7 24.8 24.4 24.2 21.0 21.1 23.4
  Extreme Minimum 15.8 14.4 21.0 22.8 23.3 24.5 24.0 24.0 22.5 22.5 15.5 17.0 14.4
  Date 29 4 7 4 12 7 6 14 22 22 30 2 4-Feb
  Grass minimumtemperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Mean Minimum 17.0 17.5 21.3 23.1 24.0 24.3 23.3 23.4 23.4 23.0 19.1 18.9 21.5
  Extreme Minimum 11.5 10.5 17.9 19.6 23.0 23.0 21.0 22.0 21.5 20.5 12.0 14.5 10.5
  Date 31 5 8 4 19 29 21 20 22 22 30 1 5-Feb
  Water temperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Mean Maximum - - - - - - - - - - - - -
  Mean - - - - - - - - - - - - -
  Mean Minimum - - - - - - - - - - - - -
  Relative humidity ( % ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Extreme Maximum - - - - - - - - - - - - -
  Mean Maximum 88 91 95 95 95 94 92 93 96 95 94 93 93
  Mean 65 67 67 71 77 75 76 76 79 79 74 69 73
  Mean Minimum 41 42 40 41 60 55 60 59 61 64 55 45 52
  Extreme Minimum - - - - - - - - - - - - -
  Date - - - - - - - - - - - - -
  Soil temperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Mean at surface 29.4 30.9 34.1 34.2 30.2 30.6 29.1 29.4 29.6 28.8 27.1 29.1 30.2
  Mean at 5 cm 28.3 30.0 33.4 34.0 30.0 30.5 28.9 29.0 29.4 28.5 26.9 28.4 29.8
  Mean at 10 cm 28.9 30.7 34.0 34.5 30.4 30.9 29.3 29.6 29.9 29.1 27.6 28.8 30.3
  Mean at 20 cm 27.8 29.3 32.8 33.7 30.5 31.1 29.2 29.4 29.6 28.9 27.3 28.0 29.8
  Mean at 50 cm - - - - - - - - - - - - -
  Mean at 100 cm - - - - - - - - - - - - -
  Rainfall ( mm ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Total amount 1.1 0.0 0.9 90.6 335.2 107.4 133.0 218.3 202.8 117.6 77.6 0.0 1284.5
  Number of rainy day 1 0 1 8 18 19 15 22 22 19 6 0 131
  Greatest in 24 hr - - - - - - - - - - - - -
  Date - - - - - - - - - - - -  
  Evaporation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Mean 137.0 148.9 188.7 189.0 130.0 149.6 123.9 136.7 126.5 107.7 114.7 128.7 1681.4
  Wind Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Prevailing direction 3/N 4/SE 4/SE 4/SE 2/SE 2/S 3/W 2.9/W 2/W 3/N 5/N 3/N 4/N
  Mean speed ( m/s ) - - - - - - - - - - - -  
  Sunshine duration ( hr ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
  Extreme Maximum - - - - - - - - - - - - -
  Date - - - - - - - - - - - -  
  Mean 7.6 9.1 8.9 7.9 5.4 5.8 4.3 3.3 4.4 3.3 6.4 8.0 6.2
Remark : "-" indicate missing data Argometeorological analysis sub-division , Agrometeorology division data
processing sub-division , Climatology division meteorological department