
AGROCLIMATOGICAL DATA 2006

	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	36.5	36.5	22.0	37.7	38.3	36.0	35.0	36.9	35.9	-	-	-	38.3
	Date	21	28	4	5	4	13	9	24	6	-	-	-	4-May
	Mean Maximum	32.9	34.0	37.9	36.2	33.9	33.6	33.0	33.1	32.9	-	-	-	34.2
	Mean	26.4	28.4	31.0	30.6	29.3	29.2	29.1	29.0	28.7	-	-	-	29.1
	Mean Minimum	19.9	22.8	24.1	24.9	24.7	24.8	25.1	24.8	24.4	-	-	-	23.9
	Extreme Minimum	15.9	20.5	20.0	23.0	23.0	24.3	24.0	23.6	23.0	-	-	-	15.9
	Date	20	7	1	2	29	8	19,20	10	15	-	-	-	20-Jan

	Grass minimumtemperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
	Mean Minimum	16.0	19.8	21.5	22.9	23.4	23.4	23.5	22.9	22.8	-	-	-	21.8
	Extreme Minimum	10.5	17.0	20.0	21.0	22.5	21.5	22.1	21.9	21.6	-	-	-	10.5
	Date	20	7	1	2	13	8	23	24	1	-	-	-	20-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	96	95	95	97	98	92	90	91	93	-	-	-	94
	Mean	68	71	71	72	78	74	75	74	76	-	-	-	73
	Mean Minimum	40	47	47	46	58	56	60	57	59	-	-	-	52
	Extreme Minimum	-	-	-	-	-	-	-	-	-	-	-	-	-
	Date	-	-	-	-	-	-	-	-	-	-	-	-	-

	Soil temperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
	Mean at surface	28.6	30.9	33.6	33.9	31.2	30.0	29.5	29.3	29.9	-	-	-	30.8
	Mean at 5 cm	-	-	-	-	-	-	-	-	-	-	-	-	-
	Mean at 10 cm	28.8	30.8	33.4	34.0	31.7	30.5	29.8	29.6	30.2	-	-	-	31.0
	Mean at 20 cm	28.1	29.9	32.3	33.1	31.6	30.5	29.8	29.3	30.1	-	-	-	30.5
	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	0.0	17.9	13.2	61.6	202.6	181.7	82.9	24.3	150.9	-	-	-	735.1
	Number of rainy day	0	4	3	7	15	18	18	11	19	-	-	-	95
	Greatest in 24 hr	-	-	-	-	-	-	-	-	-	-	-	-	-
	Date	-	-	-	-	-	-	-	-	-	-	-	-

	Evaporation	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
	Mean	133.9	131.7	165.3	166.1	147.9	120.0	121.3	130.3	132.0	-	-	-	1248.5

	Wind	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
	Prevailing direction	2/N	2/E	3/SE	2/S	2/SE	1/W	2/W	3/W	2/S	-	-	-	-
	Mean speed ( m/s )	-	-	-	-	-	-	-	-	-	-	-	-

	Sunshine duration ( hr )	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
	Extreme Maximum	-	-	-	-	-	-	-	-	-	-	-	-	-
	Date	-	-	-	-	-	-	-	-	-	-	-	-
	Mean	8.7	8.2	7.4	8.2	5.7	5.0	3.7	2.7	5.3	-	-	-	6.1

	Remark : "-" indicate missing data	Argometeorological analysis sub-division , Agrometeorology division data
		processing sub-division , Climatology division meteorological department