AGROCLIMATOGICAL DATA 2015
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	34.5	35.9	37.1	40.5	38.4	37.0	36.4	35.7	35.8	34.9	34.6	35.5	40.5
Date	6	27	5	21	7	7	11	20	7	31	16	13	21-Apr
Mean Maximum	30.7	33.6	35.2	36.5	36.4	34.2	34.2	33.4	33.5	32.4	32.7	32.6	33.8
Mean	24.8	27.4	29.8	30.5	31.1	29.8	29.7	29.2	29.1	28.7	28.7	27.8	28.9
Mean Minimum	18.9	21.1	24.3	24.5	25.7	25.3	25.2	25.0	24.8	24.9	24.7	22.9	23.9
Extreme Minimum	15.8	16.5	22.5	21.9	24.5	23.7	23.4	23.4	23.8	23.5	24.0	19.7	15.8
Date	16	8	11	15	28	30	31	1	18	26	8	20	16-Jan
Grass minimumtemperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean	16.7	19.4	23.4	23.3	24.8	24.2	23.8	24.0	24.1	24.0	23.3	21.3	22.7
Extreme Minimum	13.1	14.7	21.0	20.0	23.5	21.9	22.5	23.1	23.0	21.5	22.1	17.5	13.1
Date	3	8	5	3	28	30	11	30	26	26	29	20	3-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	93.0	92.0	91.0	93.0	89.0	90.0	90.0	91.0	91.0	88.0	84.0	92.0
Mean	65.0	65.0	68.0	65.0	69.0	69.0	70.0	72.0	72.0	74.0	71.0	65.0	72.0
Mean Minimum	40.0	37.0	43.0	39.0	44.0	50.0	51.0	53.0	53.0	57.0	53.0	46.0	52.0
Extreme Minimum	-	-	-	-	-	-	-	-	-	-	-	-	-
Date	-	-	-	-	-	-	-	-	-	-	-	-	-
Soil temperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean at surface	27.0	29.3	32.3	33.4	32.1	30.6	30.4	29.4	29.8	29.8	29.8	29.5	30.3
Mean at 5 cm	26.7	28.8	31.9	32.8	32.0	30.6	30.4	29.6	29.8	29.8	29.8	29.4	30.1
Mean at 10 cm	27.1	29.3	32.3	33.4	32.4	31.0	30.8	29.9	30.2	30.2	30.3	30.0	30.1
Mean at 20 cm	27.0	29.1	32.2	33.3	32.8	31.6	31.1	30.3	30.3	30.4	30.3	29.8	30.7
Mean at 50 cm	27.9	29.8	32.7	34.0	33.5	32.4	31.7	31.0	31.0	30.9	31.0	30.5	30.1
Mean at 100 cm	28.1	29.4	31.9	33.1	33.1	32.3	31.5	30.9	30.7	30.8	30.8	30.2	30.1
Rainfall ( mm )	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Total amount	3.2	12.6	6.8	11.5	149.3	118.1	130.7	145.9	246.6	52.5	40.7	17.6	935.5
Number of rainy day	2	2	1	2	12	9	18	10	15	10	9	2	92
Greatest in 24 hr	-	-	-	-	-	-	-	-	-	-	-	-	-
Date	-	-	-	-	-	-	-	-	-	-	-	-
Evaporation	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean	116.3	139.6	133.3	184.2	184.5	147.0	145.1	142.6	128.1	113.5	108.9	121.6	1,664.6
Wind	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Prevailing direction	6.1/N	4.7/SE	5.8/SE	6.1/SE	4.7/S	3.6/S	5.0/W	5.4/W	5.4/W	4.0/N,NW	4.0/NW	5.8/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	9.9	10.3	10.3	10.5	11.3	10.7	10.7	10.5	10.1	9.9	10.0	9.8	10.3
Remark : "-" indicate missing data	Argometeorological analysis sub-division , Agrometeorology division data
	processing sub-division , Climatology division meteorological department