AGROCLIMATOGICAL DATA 2017
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	34.0	36.0	38.3	39.2	38.9	36.9	36.5	37.0	36.5	35.0	35.0	35.1	39.2
Date	13	6	14	25	2	17	30	2	13	21	18	14	25 Apr.
Mean Maximum	30.5	33.5	36.0	36.2	34.5	34.7	33.3	33.8	34.3	32.5	30.7	29.8	33.3
Mean	26.5	27.4	30.0	30.6	33.9	30.0	29.1	29.5	29.7	28.6	27.3	25.5	29.0
Mean Minimum	22.5	21.2	23.9	25.0	25.8	25.2	24.9	25.2	25.0	24.7	23.8	21.2	24.0
Extreme Minimum	18.8	18.4	21.0	23.5	23.4	23.0	24.0	24.2	23.7	23.4	20.4	14.1	14.1
Date	29	14	4	21	5	30	21	1	27	30	6	20	20 Dec.
Grass minimumtemperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean	20.5	18.2	21.7	23.5	24.9	24.0	23.9	24.0	24.0	23.6	22.2	19.1	22.5
Extreme Minimum	16.1	14.4	17.5	21.0	22.9	21.7	23.0	22.3	22.9	20.2	18.0	10.4	10.4
Date	28	14	4	21	5	13	18	12	19	31	4	20	20 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	92.0	93.0	93.0	95.0	95.0	96.0	96.0	95.0	95.0	95.0	95.0	94.0	92.0
Mean	74.0	66.0	67.0	70.0	76.0	75.0	77.0	76.0	76.0	79.0	80.0	75.0	72.0
Mean Minimum	55.0	40.0	40.0	44.0	56.0	54.0	58.0	58.0	56.0	63.0	64.0	55.0	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	28.5	32.0	32.2	31.4	30.5	29.5	29.7	30.7	29.2	26.9	25.8	29.5
Mean at 5 cm	26.8	27.9	31.5	31.8	31.2	30.4	29.5	29.7	30.5	29.7	27.9	26.4	29.4
Mean at 10 cm	27.2	28.3	31.8	32.4	31.6	30.7	29.8	30.1	31.0	30.1	28.4	27.1	29.4
Mean at 20 cm	27.2	28.2	31.5	32.2	31.9	31.1	30.2	30.3	31.1	30.3	28.5	27.3	30.0
Mean at 50 cm	28.1	29.0	32.3	33.1	32.7	31.8	31.0	31.7	31.7	30.9	29.3	28.0	29.4
Mean at 100 cm	28.2	28.9	31.4	32.5	32.3	31.6	30.9	30.9	31.1	30.6	29.3	28.3	29.4
Rainfall ( mm )	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Total amount	59.7	0.6	39.7	24.6	136.3	112.8	125.3	126.2	234.9	159.9	148.9	37.0	1,207.6
Number of rainy day	8	1	2	5	18	13	20	15	19	17	12	4	134
Greatest in 24 hr	-	-	-	-	-	-	-	-	-	-	-	-	-
Date	-	-	-	-	-	-	-	-	-	-	-	-	-
Evaporation	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean	3.30	4.80	5.60	5.80	4.50	4.70	3.80	3.90	4.50	3.30	2.90	3.30	50.40
Wind	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Prevailing direction	6.5/N	5.0/SE	5.0/SE	4.3/SE	3.6/SE	4.0/W	4.3/W	4.0/S	4.0/SSE	4.3/NW	7.6/NW	7.2/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	5.1	8.6	8.0	7.4	5.5	5.9	3.7	4.9	6.0	5.0	4.6	6.0	5.9
Remark : "-" indicate missing data	Argometeorological analysis sub-division , Agrometeorology division data
	processing sub-division , Climatology division meteorological department