AGROCLIMATIC INFORMATION FOR AGRICULTURAL PLANNING AND OPERATION IN ILOCOS NORTE PARTICULARLY BATAC AND SURROUNDING AREAS FOR THE MONTH OF DECEMBER

I. AGROCLIMATIC SUMMARY::

Partly cloudy to cloudy skies is the prevalent sky condition of the area. Rainfall amount of 3.4 mm (light rains) and a total evaporation of 137.1 mm are normal values for the month.

Normal relative humidity is 82%. Leaf wetness duration is up 6 hours. Daylight duration is 11 hours and 3 minutes with 62% of total bright sunshine. This situation gives an amount of 16.5 MJ/m2 of solar radiation during most days of the month. Moderate to occasionally strong winds blowing from the northeast (46.9 kpd) will prevail.

The maximum and minimum air temperature are 31.8 °C and 19.7°C, respectively.

II. AGROCLIMATIC DATA (AVERAGE)::

Decade Rainfall Tot AIR TEMPERATURE RH Solar Wind
(10 Day) (mm) evap. Max. Min. (%) Rad. Speed
    (mm) (°C) (°C)   MJ/m2 (kpd)
December              
1-10 1.2 46.0 32.1 19.9 82 16.6 46.2
11-20 0.6 44.0 32.0 20.0 81 16.3 44.0
21-31 1.6 47.1 31.4 19.2 82 16.5 47.0

III. TROPICAL CYCLONE

During the past 24 years (1981-2006), record shows that three tropical cyclone crossed or passed Ilocos Norte during the month of December.

TC Name Year and Date Occurrence RR
T Yoyong Dec 02-04, 2004 10.0
T Seniang Dec 07-12, 2006 0.3
T Tomas Dec 18-19, 2006 0