AGROCLIMATOGICAL DATA 2020
Station     : Ratchaburi			Elevation of station above MSL								6.00  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	35.9	36.6	39.1	38.5	39.0	36.5	36.6	37.3	36.0	33.8	35.0	34.5	39.1
Date	23	12	9	22	16	24	19	30	2	2	20	28	9-Mar
Mean Maximum	34.1	34.5	36.6	36.5	37.6	34.6	34.7	33.6	33.7	30.2	31.4	30.5	34.0
Mean	27.9	28.1	30.3	30.9	31.9	29.9	29.8	29.3	29.5	27.2	27.4	26.0	29.0
Mean Minimum	21.6	21.5	24.0	25.2	26.1	25.1	24.9	25.0	25.3	24.1	23.2	21.5	24.0
Extreme Minimum	18.2	18.2	21.1	23.7	24.5	24.1	23.8	23.8	23.6	22.5	19.6	17.9	17.9
Date	27	16	9	14	12	20	4	15	23	18	14	23	23-Dec
Grass minimumtemperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean	19.0	19.4	22.5	24.1	25.2	24.3	24.1	23.9	24.3	23.4	21.9	19.1	22.6
Extreme Minimum	14.0	15.5	18.2	22.8	23.4	22.9	22.7	22.5	22.7	21.2	17.5	14.6	14.0
Date	28	16	9	21	13	20	6	26	25	25	15	23	28-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	95.0	93.0	94.0	95.0	96.0	96.0	96.0	95.0	96.0	97.0	96.0	96.0	95.0
Mean	67.0	64.0	67.0	69.0	70.0	76.0	73.0	76.0	77.0	84.0	77.0	74.0	73.0
Mean Minimum	38.0	36.0	40.0	43.0	44.0	56.0	51.0	57.0	58.0	71.0	58.0	52.0	50.0
Extreme Minimum	-	-	-	-	-	-	-	-	-	-	-	-	-
Date	-	-	-	-	-	-	-	-	-	-	-	-	-
Soil temperature (celcuis)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean at surface	29.6	30.5	32.8	33.1	33.8	30.5	30.0	29.5	30.2	28.2	28.4	26.9	30.3
Mean at 5 cm	29.8	30.8	32.8	33.4	34.3	30.9	30.5	30.0	30.7	28.6	28.7	27.2	30.6
Mean at 10 cm	30.2	31.3	33.5	33.9	34.7	31.3	30.8	30.3	31.1	29.0	29.1	27.8	31.1
Mean at 20 cm	30.1	31.2	33.5	34.2	35.1	31.8	31.3	30.6	31.3	29.3	29.2	27.9	31.3
Mean at 50 cm	30.5	31.4	33.4	34.4	25.3	32.7	32.0	31.5	32.1	30.3	30.0	29.0	31.9
Mean at 100 cm	30.0	30.6	31.9	33.0	33.9	32.5	31.7	31.1	31.5	30.5	29.9	29.4	31.3
Rainfall ( mm )	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Total amount	-	-	18.6	38.1	91.0	175.3	191.0	152.6	217.8	215.1	20.1	7.3	1,126.9
Number of rainy day	-	-	1.0	4	7	15	15	16	17	19	6	3.0	103
Greatest in 24 hr	-	-	-	-	-	-	-	-	-	-	-	-	-
Date	-	-	-	-	-	-	-	-	-	-	-	-	-
Evaporation	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Mean	3.93	4.91	5.69	5.27	5.69	4.54	4.48	4.10	4.27	2.77	3.40	3.46	4.40
Wind	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Prevailing direction	0.90/SE	1.30/SE	1.50/SE	1.20/SE	1.10/SE	0.90/SSE	1.0/W	1.0/SE,W	1.10/SE	1.30/NW	1.60/NW	1.50/NW	-
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	8.2	8.6	7.2	7.7	6.3	6.1	4.8	5.4	3.2	6.3	6.8	6.6
Remark : "-" indicate missing data	Argometeorological analysis sub-division , Agrometeorology division data
	processing sub-division , Climatology division meteorological department