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AGROCLIMATOGICAL
DATA 2002 |
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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 |
34.9 |
36.7 |
37.1 |
39.2 |
38.5 |
35.4 |
36.0 |
34.5 |
34.1 |
35.5 |
34.4 |
34.5 |
39.2 |
|
|
Date |
25 |
28 |
25 |
17 |
5 |
15 |
11,12 |
1,24 |
30 |
1 |
15 |
7,20 |
17-Apr |
|
|
Mean Maximum |
32.1 |
34.7 |
35.0 |
37.2 |
34.5 |
34.0 |
34.2 |
32.8 |
32.1 |
32.3 |
30.9 |
32.2 |
33.5 |
|
|
Mean |
26.0 |
28.4 |
29.5 |
31.0 |
29.8 |
29.5 |
29.6 |
28.8 |
28.3 |
28.2 |
27.2 |
27.6 |
28.7 |
|
|
Mean Minimum |
19.8 |
22.0 |
24.0 |
24.7 |
25.1 |
25.0 |
25.0 |
24.7 |
24.5 |
24.0 |
23.4 |
23.1 |
23.8 |
|
|
Extreme Minimum |
16.5 |
19.9 |
20.1 |
23.2 |
23.4 |
23.6 |
23.9 |
23.5 |
23.4 |
21.6 |
20.5 |
20.6 |
16.5 |
|
|
Date |
4 |
2 |
8 |
12 |
21 |
23 |
20 |
21 |
23 |
11 |
6 |
29 |
4-Jan |
|
|
|
|
Grass minimumtemperature (celcuis) |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
|
|
Mean Minimum |
17.8 |
20.2 |
22.7 |
23.4 |
24.4 |
24.3 |
23.8 |
24.0 |
23.8 |
23.2 |
21.7 |
21.3 |
22.6 |
|
|
Extreme Minimum |
13.5 |
17.5 |
20.0 |
21.1 |
23.0 |
23.0 |
22.0 |
23.0 |
22.6 |
20.8 |
16.5 |
19.0 |
13.5 |
|
|
Date |
3 |
1 |
8 |
11 |
21,28 |
29 |
20 |
4 |
15 |
11 |
6 |
20,29 |
3-Jan |
|
|
|
|
Water temperature (celcuis) |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
|
|
Mean Maximum |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Mean |
25.6 |
28.3 |
29.8 |
31.2 |
30.0 |
30.3 |
29.6 |
29.2 |
29.6 |
29.3 |
27.9 |
28.0 |
29.1 |
|
|
Mean Minimum |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
|
|
Relative humidity ( % ) |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
|
|
Extreme Maximum |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Mean Maximum |
- |
- |
- |
- |
- |
- |
92 |
93 |
93 |
95 |
92 |
93 |
93 |
|
|
Mean |
- |
- |
- |
- |
- |
- |
72 |
74 |
76 |
76 |
75 |
72 |
74 |
|
|
Mean Minimum |
- |
- |
- |
- |
- |
- |
52 |
54 |
59 |
56 |
58 |
55 |
56 |
|
|
Extreme Minimum |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Date |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
|
|
Soil temperature (celcuis) |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
|
|
Mean at surface |
28.7 |
31.8 |
32.8 |
34.8 |
31.5 |
30.4 |
30.6 |
29.3 |
29.4 |
29.7 |
28.8 |
29.4 |
30.6 |
|
|
Mean at 5 cm |
28.2 |
31.1 |
32.4 |
35.2 |
32.3 |
30.7 |
30.7 |
29.7 |
29.8 |
30.0 |
28.9 |
29.2 |
30.7 |
|
|
Mean at 10 cm |
28.6 |
31.4 |
32.7 |
35.3 |
32.6 |
31.1 |
31.2 |
29.9 |
30.0 |
30.2 |
29.0 |
29.4 |
31.0 |
|
|
Mean at 20 cm |
27.7 |
30.2 |
31.5 |
34.3 |
32.0 |
30.7 |
30.6 |
29.4 |
29.3 |
29.4 |
28.3 |
28.8 |
30.2 |
|
|
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 |
0.0 |
25.0 |
3.1 |
123.6 |
195.1 |
45.0 |
111.8 |
240.0 |
182.4 |
123.1 |
18.2 |
1067.3 |
|
|
Number of rainy day |
0 |
0 |
2 |
4 |
14 |
19 |
9 |
18 |
14 |
12 |
8 |
3 |
103 |
|
|
Greatest in 24 hr |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Date |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
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Evaporation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
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|
Mean |
129.7 |
128.0 |
150.6 |
189.2 |
152.7 |
135.4 |
153.9 |
129.8 |
125.7 |
116.3 |
105.3 |
108.6 |
1625.2 |
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|
Wind |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
|
|
Prevailing direction |
1/N |
1/SE |
1/S |
1/SE |
1/S |
1/W |
1/W |
1/W |
1/W |
1/N |
1/N |
1/N |
1/NW |
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|
Mean speed ( m/s ) |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
|
|
|
Sunshine duration ( hr ) |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Year |
|
|
Extreme Maximum |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
Date |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
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Mean |
7.5 |
8.2 |
7.7 |
8.7 |
5.3 |
5.2 |
4.4 |
3.1 |
4.1 |
6.2 |
5.7 |
6.5 |
6.1 |
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Remark : "-" indicate missing data |
Argometeorological
analysis sub-division , Agrometeorology division data |
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processing sub-division
, Climatology division meteorological department |
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