| 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 | |||||||||||||||