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Monthly Weather Bulletin

MARCH 2015 

INTRODUCTION

Generally the country is encroaching towards the end of Northeast Monsoon Season where the most areas were experiencing hot and dry conditions Can be seen, based on the amount of rain recorded, Peninsular Malaysia has received a total rainfall average to below average,  as well as the states of Sabah and Sarawak.

RAINFALL

Generally, the final phase of the Northeast Monsoon dominant winds from the northeast across Malaysia has become increasingly weak. Most places in Malaysia has experienced weather is hot and dry.

 In Peninsular Malaysia, most of the area has been experiencing hot weather and dry with monthly rainfall of less than 100 mm, particularly the states of Kelantan, Terengganu and Pahang which has recorded a 60 % reduction in the percentage of rainfall anomalies. However, Selangor , south of Perak , north of Negeri Sembilan and Pahang interior has recorded rainfall exceeding 200mm. Meanwhile, other states have recorded rainfall between average levels until slightly below average.

 In Sarawak, Kuching, Bintulu , Miri and Limbang recorded rainfall below average with monthly rainfall of 50 mm up to 200 mm . For Kapit, which has received more rainfall above average levels with a 60% increase in the percentage of anomalies and rainfall ranges from 300 mm up to 550 mm.

 For Sabah, the amount of rain that has been recorded is below average with 60 % reduction in the percentage of rainfall anomalies.

 For a record number of rainy days in principal meteorological stations, for Peninsular Malaysia, Kuala Krai Meteorological Station recorded the fewest number of rainy days of 3 days while Petaling Jaya Meteorological Station recorded a rainy day that is 19 days at most. Range of the number of rainy days in Sarawak is 6 days recorded in Miri Meteorological Station and 25 days in Kapit Meteorological Station. For Sabah, the range of number of rainy days is between 2 days recorded at the Meteorological Station Kota Kinabalu and Kudat and 9 days in Ranau Meteorological Station.

 

TEMPERATURE

Malaysia has recorded an average temperature higher than the long-term average for March. In Peninsular Malaysia, the largest positive deviation recorded at the Meteorological Station Mersing with the standard deviation of +1.5, while the lowest was recorded at Meteorological Station Gong Kedak and Kuala Pilah with standard deviation 0.0. For the Sarawak, the largest positive deviation of +0.6 was recorded in Limbang Meteorological Station , while the smallest deviation , 0.0 have been recorded in Bintulu and Miri Meteorological Station . For Sabah, the largest positive deviation of +0.7 was recorded in Kota Kinabalu Meteorological Station while the smallest deviation, 0.0 Meteorological Station recorded in Labuan.
 
 For the highlands, Cameron Highlands Meteorological Station recorded a temperature range between 11.9 ° C and 24.9 ° C with an average temperature of 18.5 ° C.

SOLAR RADIATION

Most of principal meteorological stations recorded the amount of solar radiation higher than the average. Range of average daily solar radiation in the lowland areas is from 9.05 MJm - ² were recorded in Keningau Meteorological Station and 24.44 MJm - ² recorded at the Meteorological Station Pulau Langkawi. Average solar radiation recorded in the highlands, Cameron Highlands Meteorological Station is 18,22 MJm - ² . The largest positive deviation from normal is +5.89 MJm - ² recorded at KLIA Sepang Meteorological Station and the largest negative deviation is -1.54 MJm - ² were recorded in Bayan Lepas Meteorological Station.

EVAPORATION

Average daily evaporation rate lowland areas are recorded range of 2.6 mm/day in Sri Aman Meteorological Station and 6.7 mm/day Chuping Meteorological Station. The largest positive deviation from the average is 2.1 mm/day were recorded in Kuala Krai Meteorological Station, while the largest negative deviation was recorded in Ipoh Meteorological Station of -0.8 mm/day. Meanwhile, the daily evaporation rate recorded in Cameron Highlands Meteorological Station is 2.6 mm/day with deviation from the average of +0.3 mm/day.

 

 

Figures :

FIGURE 1   : Rainfall Map for Malaysia

FIGURE 2a : Mean Monthly Temperature

FIGURE 2b : Mean Monthly Maximum Temperature

FIGURE 2c : Mean Monthly Minimum Temperature


 

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