AGROCLIMATOGICAL DATA 2017
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 temperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Extreme Maximum 34.0 36.0 38.3 39.2 38.9 36.9 36.5            
Date 13 6 14 25 2 17 30            
Mean Maximum 30.5 33.5 36.0 36.2 34.5 34.7 33.3            
Mean 26.5 27.4 30.0 30.6 33.9 30.0 29.1            
Mean Minimum 22.5 21.2 23.9 25.0 25.8 25.2 24.9            
Extreme Minimum 18.8 18.4 21.0 23.5 23.4 23.0 24.0            
Date 29 14 4 21 5 30 21            
Grass minimumtemperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean  20.5 18.2 21.7 23.5 24.9 24.0 23.9            
Extreme Minimum 16.1 14.4 17.5 21.0 22.9 21.7 23.0            
Date 28 14 4 21 5 13 18            
 
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 92.0 93.0 93.0 95.0 95.0 96.0 96.0            
Mean 74.0 66.0 67.0 70.0 76.0 75.0 77.0            
Mean Minimum 55.0 40.0 40.0 44.0 56.0 54.0 58.0            
Extreme Minimum - - - - - - -            
Date - - - - - - -            
Soil temperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean at surface 27.0 28.5 32.0 32.2 31.4 30.5 29.5            
Mean at 5 cm 26.8 27.9 31.5 31.8 31.2 30.4 29.5            
Mean at 10 cm 27.2 28.3 31.8 32.4 31.6 30.7 29.8            
Mean at 20 cm 27.2 28.2 31.5 32.2 31.9 31.1 30.2            
Mean at 50 cm 28.1 29.0 32.3 33.1 32.7 31.8 31.0            
Mean at 100 cm 28.2 28.9 31.4 32.5 32.3 31.6 30.9            
Rainfall ( mm ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Total amount    59.7      0.6    39.7    24.6   136.3   112.8   125.3            
Number of rainy day 8 1 2 5 18 13 20            
Greatest in 24 hr - - - - - - - - - - - - -
Date - - - - - - - - - - - - -
Evaporation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean    3.30    4.80    5.60    5.80    4.50    4.70    3.80            
Wind Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Prevailing direction 6.5/N 5.0/SE 5.0/SE 4.3/SE 3.6/SE 4.0/W 4.3/W            
Mean speed ( m/s ) - - - - - - -            
Sunshine duration ( hr ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Extreme Maximum - - - - - - - - - - - - -
Date - - - - - - - - - - - - -
Mean 5.1 8.6 8.0 7.4 5.5 5.9 3.7            
Remark : "-" indicate missing data Argometeorological analysis sub-division , Agrometeorology division data
processing sub-division , Climatology division meteorological department