AGROCLIMATOGICAL DATA 2014
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 33.0 35.3 36.8 37.9 37.3 36.5 35.5 36.0 34.8 33.5 35.3 22.4 37.9
Date 4 3 28 23 1 2 4 24 14 4 29 7 23-Apr
Mean Maximum 30.0 33.1 35.0 36.3 35.9 33.6 33.1 33.3 33.4 31.4 32.1 30.3 33.1
Mean 23.6 27.2 29.4 30.9 30.7 29.6 29.2 29.0 29.1 28.0 28.0 26.0 28.4
Mean Minimum 17.2 21.2 23.8 25.5 25.5 25.7 25.2 24.6 24.9 24.5 23.9 21.7 23.6
Extreme Minimum 12.0 16.5 22.0 23.0 24.0 23.3 24.0 22.8 23.6 23.4 21.2 17.7 12.0
Date 24 10 1 8 23 5 26 5 5 28 21 31 24-Jan
Grass minimumtemperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean  14.6 19.4 22.4 24.5 24.7 24.7 23.9 23.4 23.7 23.4 22.7 19.8 22.3
Extreme Minimum 8.5 14.0 20.0 22.0 23.5 23.5 22.3 21.7 22.7 22.1 19.5 15.3 8.5
Date 24 10 4 8 22 6 24 12 10 17 21 31 24-Jan
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 89.0 91.0 91.0 90.0 93.0 95.0 95.0 95.0 96.0 92.0 93.0 85.0 92.0
Mean 61.0 64.0 66.0 65.0 70.0 77.0 76.0 76.0 76.0 77.0 75.0 67.0 72.0
Mean Minimum 33.0 37.0 40.0 40.0 47.0 59.0 58.0 56.0 56.0 92.0 58.0 50.0 52.0
Extreme Minimum - - - - - - - - - - - - -
Date - - - - - - - - - - - - -
Soil temperature (celcuis) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean at surface 25.6 29.7 32.4 34.1 32.3 30.5 29.3 29.6 29.9 29.7 30.0 28.2 30.1
Mean at 5 cm 25.3 29.1 31.8 33.7 32.2 30.5 29.5 29.6 29.8 29.5 29.7 28.0 29.9
Mean at 10 cm 25.7 29.2 31.9 33.2 32.0 30.8 29.8 29.9 30.1 30.0 30.2 28.4 29.9
Mean at 20 cm 25.8 29.2 32.0 33.9 33.0 31.3 30.3 30.3 30.5 30.2 30.2 28.5 30.4
Mean at 50 cm 26.3 29.6 32.4 34.5 34.0 32.2 31.0 31.0 31.2 30.8 30.8 29.3 29.9
Mean at 100 cm 26.6 29.0 31.5 33.6 33.6 32.2 31.1 30.8 30.8 30.7 30.4 29.6 29.9
Rainfall ( mm ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Total amount       -        4.8      1.8    14.8   103.3   171.1    68.9   129.2   157.4   246.2   112.1      6.0   1,015.6
Number of rainy day 0 1 2 3 14 13 15 15 21 16 8 4 112
Greatest in 24 hr - - - - - - - - - - - - -
Date - - - - - - - - - - - -  
Evaporation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean   127.5   135.3   165.9   167.4   180.8   126.5   134.8   141.9   137.1   100.1   100.9   111.7   1,629.7
Wind Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Prevailing direction 4.6/N 4.6/SE 4.6/SE 4.3/SE 4.0/N,SE 3.2/SE,S 4.6/W 4.6/SE,W 4.6/W 4.6/NW 5.8/NW 8.3/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 8.8 8.6 7.9 7.8 7.7 4.1 4.0 4.3 5.1 5.2 7.4 6.5 6.5
Remark : "-" indicate missing data Argometeorological analysis sub-division , Agrometeorology division data
processing sub-division , Climatology division meteorological department