AGROCLIMATOGICAL
DATA 2005 |
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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 | 35.7 | 37.0 | 37.6 | 39.0 | 39.5 | 36.9 | 36.0 | 36.5 | 34.5 | 34.5 | 34.8 | 33.3 | 39.5 | ||
| Date | 30 | 17 | 29 | 10,27 | 5 | 11 | 17 | 26 | 3 | 3 | 12 | 4 | 5-May | ||
| Mean Maximum | 32.4 | 35.4 | 34.7 | 37.0 | 36.3 | 34.8 | 32.9 | 33.1 | 32.8 | 31.4 | 31.3 | 29.1 | 33.4 | ||
| Mean | 26.1 | 28.9 | 29.1 | 31.3 | 31.0 | 30.1 | 28.8 | 28.9 | 28.7 | 27.8 | 27.4 | 25.0 | 28.6 | ||
| Mean Minimum | 19.8 | 22.3 | 23.4 | 25.6 | 25.6 | 25.4 | 24.7 | 24.6 | 24.5 | 24.2 | 23.4 | 20.9 | 23.7 | ||
| Extreme Minimum | 13.9 | 19.4 | 17.6 | 23.0 | 24.5 | 24.0 | 23.0 | 23.2 | 23.4 | 22.7 | 19.2 | 16.4 | 13.9 | ||
| Date | 3 | 27 | 7 | 6 | 22,24 | 16 | 14 | 3,21 | 4 | 4 | 23 | 19 | 3-Jan | ||
| Grass minimumtemperature (celcuis) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean Minimum | - | - | - | - | - | - | 23.4 | 23.2 | 23.5 | 23.1 | 21.4 | 18.2 | 22.1 | ||
| Extreme Minimum | - | - | - | - | - | - | 22.2 | 21.6 | 23.4 | 22.0 | 16.0 | 11.7 | 11.7 | ||
| Date | - | - | - | - | - | - | 8 | 24 | 4 | 2 | 23 | 19 | 19-Dec | ||
| 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 | 92 | 91 | 91 | 90 | 93 | 93 | 95 | 96 | 95 | 94 | 90 | 92 | ||
| Mean | 64 | 66 | 68 | 67 | 68 | 72 | 75 | 77 | 80 | 81 | 77 | 73 | 72 | ||
| Mean Minimum | 39 | 39 | 45 | 43 | 46 | 51 | 56 | 58 | 63 | 66 | 59 | 55 | 52 | ||
| Extreme Minimum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Date | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Soil temperature (celcuis) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean at surface | 28.5 | 32.0 | 32.7 | 36.1 | 33.5 | 31.4 | 30.3 | 30.5 | 30.4 | 29.6 | 29.0 | 27.1 | 30.9 | ||
| Mean at 5 cm | 28.5 | 32.2 | 33.0 | 36.2 | 33.8 | 31.4 | 30.2 | 30.5 | 30.4 | 29.6 | 19.5 | - | 30.5 | ||
| Mean at 10 cm | 28.4 | 32.2 | 32.9 | 36.1 | 33.9 | 31.5 | 30.2 | 30.5 | 30.4 | 29.7 | 2.3 | 27.4 | 28.8 | ||
| Mean at 20 cm | - | - | - | - | - | 31.4 | 30.0 | 30.3 | 30.2 | 29.4 | 29.0 | 27.2 | 29.6 | ||
| 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 | 6.5 | 0.0 | 9.6 | 0.9 | 87.2 | 104.9 | 140.8 | 114.8 | 145.8 | 441.5 | 39.1 | 58.7 | 1149.8 | ||
| Number of rainy day | 3 | 0 | 4 | 3 | 17 | 18 | 18 | 15 | 15 | 21 | 8 | 6 | 128 | ||
| Greatest in 24 hr | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Date | - | - | - | - | - | - | - | - | - | - | - | - | |||
| Evaporation | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Mean | 127.7 | 150.4 | 166.7 | 191.7 | 180.7 | 155.5 | 148.2 | 139.1 | 122.7 | 93.1 | 97.9 | 105.6 | 1679.3 | ||
| Wind | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Prevailing direction | 1/SE | 2/SE | 1/SE | 1/SE | 1/SE | 1/S,SE | 1/W | 1/W | 1/SE | 1/N | 1/N | 1/N | 1/SE | ||
| Mean speed ( m/s ) | - | - | - | - | - | - | - | - | - | - | - | - | |||
| Sunshine duration ( hr ) | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | ||
| Extreme Maximum | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Date | - | - | - | - | - | - | - | - | - | - | - | - | |||
| Mean | 8.0 | 9.3 | 8.0 | 8.5 | 7.1 | 4.6 | 4.1 | 4.3 | 4.2 | 4.4 | 6.1 | 5.4 | 6.2 | ||
| Remark : "-" indicate missing data | Argometeorological analysis sub-division , Agrometeorology division data | ||||||||||||||
| processing sub-division , Climatology division meteorological department | |||||||||||||||