AGROCLIMATOGICAL
DATA 2001 |
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| 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 | 36.0 | 37.0 | 36.7 | 38.5 | 36.7 | 35.6 | 36.5 | 35.9 | 36.1 | 33.5 | 33.0 | 34.4 | 38.5 | ||
| Date | 10,25 | 20 | 6 | 11 | 7 | 6 | 26 | 25 | 3 | 15,16 | 1 | 19 | 11-Apr | ||
| Mean Maximum | 33.4 | 34.9 | 32.8 | 36.6 | 34.0 | 33.7 | 33.9 | 33.2 | 33.9 | 31.5 | 29.9 | 30.9 | 33.2 | ||
| Mean | 27.6 | 28.2 | 28.3 | 31.1 | 29.4 | 29.3 | 29.4 | 29.1 | 29.2 | 27.9 | 25.5 | 26.0 | 28.4 | ||
| Mean Minimum | 21.8 | 21.5 | 23.8 | 25.5 | 24.8 | 24.9 | 24.9 | 24.9 | 24.6 | 24.4 | 21.1 | 21.0 | 23.6 | ||
| Extreme Minimum | 17.5 | 17.0 | 21.9 | 24.3 | 23.5 | 23.9 | 23.7 | 24.0 | 23.5 | 22.0 | 16.6 | 15.0 | 15.0 | ||
| Date | 3 | 25 | 13,14 | 17 | 26 | 6 | 20 | 2,13 | 15,29 | 1 | 23 | 24 | 24-Dec | ||
| Grass minimumtemperature (celcuis) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean Minimum | 19.1 | 18.5 | 22.3 | 23.8 | 23.9 | 24.2 | 23.9 | 23.9 | 23.7 | 24.1 | 19.9 | 19.1 | 22.2 | ||
| Extreme Minimum | 14.0 | 12.0 | 21.0 | 22.0 | 22.6 | 23.1 | 22.5 | 23.0 | 22.5 | 20.8 | 14.0 | 12.5 | 12.0 | ||
| Date | 3 | 25 | 4,14 | 17 | 8 | 29 | 25 | 13 | 1 | 1 | 27 | 24 | 25-Feb | ||
| Water temperature (celcuis) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean Maximum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Mean | 27.0 | 27.5 | 28.7 | 32.0 | 30.3 | 29.9 | 29.7 | 29.3 | 30.0 | 29.2 | 26.1 | 26.0 | 28.8 | ||
| Mean Minimum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Relative humidity ( % ) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Extreme Maximum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Mean Maximum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Mean | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Mean Minimum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Extreme Minimum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Date | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Soil temperature (celcuis) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean at surface | 31.0 | 31.7 | 30.4 | 34.4 | 30.7 | 30.6 | 30.6 | 30.3 | 31.3 | 29.2 | 27.8 | 28.5 | 30.5 | ||
| Mean at 5 cm | 30.6 | 31.7 | 30.6 | 34.1 | 31.0 | 31.1 | 31.1 | 30.6 | 31.3 | 29.4 | 27.9 | 28.4 | 30.7 | ||
| Mean at 10 cm | 30.6 | 31.8 | 30.7 | 34.6 | 31.4 | 31.3 | 31.5 | 30.9 | 31.8 | 29.6 | 28.3 | 28.8 | 30.9 | ||
| Mean at 20 cm | 29.7 | 31.0 | 30.1 | 33.3 | 31.0 | 30.6 | 30.8 | 30.2 | 31.2 | 29.0 | 27.7 | 28.1 | 30.2 | ||
| Mean at 50 cm | 31.7 | 33.5 | 32.4 | - | - | - | - | - | - | - | - | - | - | ||
| Mean at 100 cm | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Rainfall ( mm ) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Total amount | 2.8 | 0.0 | 190.1 | 7.3 | 239.3 | 95.9 | 148.3 | 31.1 | 310.4 | 294.8 | 28.4 | 1.3 | 1349.7 | ||
| Number of rainy day | 1 | 0 | 13 | 3 | 19 | 12 | 13 | 16 | 15 | 27 | 6 | 2 | 127 | ||
| Greatest in 24 hr | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Date | - | - | - | - | - | - | - | - | - | - | - | - | |||
| Evaporation | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean | 134.9 | 138.1 | 137.8 | 179.1 | 140.8 | 138.3 | 147.1 | 150.1 | 122.7 | 91.9 | 117.8 | 123.4 | 135.2 | ||
| Wind | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Prevailing direction | 1/N | 1/SE | 1/SE | 1/SE | 1/S | 1/W | 1/W | 1/W | 1/SW | 0/C | 1/N | 1/N | 1/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 | 6.9 | 8.3 | 5.6 | 8.9 | 5.5 | 4.1 | 4.7 | 3.2 | 5.0 | 3.9 | 7.0 | 6.9 | 5.8 | ||
| Remark : "-" indicate missing data | Argometeorological analysis sub-division , Agrometeorology division data | ||||||||||||||
| processing sub-division , Climatology division meteorological department | |||||||||||||||