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MOnthly weather bulletin MARCH 2008 1. SUMMARY Generally, most places in the country received above normal to much above normal rainfall amount during this month. The temperature, amount of solar radiation and evaporation rates were recorded below average for most places in the country. 2. RAINFALL The monthly climate patterns for March corresponds to the end of the North East monsoon and the beginning of intermonsoon season.. Most parts of the country received above average to very much above average amount of rainfall. The rain was evenly distributed in Peninsular Malaysia except for Kota Bharu and Kuala Terengganu recorded much below average, meanwhile for East Malaysia, western Sarawak and eastern Sabah received more rainfall than the other places. It was noted that Ipoh, Subang and Sitiawan had recorded it highest monthly rainfall on record for the month of March of 425.8mm, 545.2mm and 521.8mm of rainfall amount respectively. The number of rain days varied from 10 days in Kota Bharu to 27 days in Sri Aman and Sibu. 3. TEMPERATURE Generally, the country recorded below normal temperature. The monthly mean temperature of lowland areas varied from 25.3°C as recorded at Senai to 28.1°C as recorded at Pulau Langkawi. The largest positive deviation from normal was 0.1°C as recorded at Kuantan and the largest negative deviation was -1.3°C as recorded at Ipoh. The monthly mean minimum temperature of lowland areas ranged from 22.5°C at Senai to 24.9°C at Pulau Langkawi. The lowest temperature of 20.7°C was recorded at Senai. The monthly mean maximum temperatures of lowland areas ranged from 28.7°C at Kuala Terengganu to 33.7°C at Alor Setar. The highest temperature of 35.5°C was recorded at Alor Setar. Cameron Highlands, the highland station, recorded temperature had ranged between 13.7°C and 24.4°C, with the mean value of 17.9°C. 4. SOLAR RADIATION During this March, most of the places in the country received below normal amount of solar radiation. The mean solar radiation varied from 12.03MJm-2 in Senai to 20.92MJm-2 in Kota Bharu. The largest positive and negative deviations were recorded at +0.87MJm-2 in Subang and at -5.41MJm-2 in Senai. Cameron Highlands recorded the mean daily solar radiation at 15.65MJm-2 with the deviation of +0.61MJm-2 . 5 . EVAPORATION The evaporation rate over the country was much below normal. The mean daily evaporation rates at the lowland areas varied from 2.5mm/day as recorded at Muadzam Shah to 5.1mm/day at Alor Setar. The largest positive deviation was +0.3mm/day at Sibu and the negative deviation was -1.2mm/day at Kuala Krai, Muadzam Shah, Malacca and Kota Kinabalu. The mean daily evaporation rate at Cameron Highlands was 2.5mm/day, with the deviation of 0.2mm/day.
Figures and tables:
Figure
1 : Rainfall Map for Peninsular Malaysia
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