Temperature Gets As Low as 22.7°C in North On Rainy Day Afternoon on April 17
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Source MSS
The temperature suddenly decreased to 22.7°C at 3 pm on April 17 after the wet weather suddenly hits the northern parts of Singapore. This chilly weather happens after the heavy rains which resulted in flooding in Queenstown, Bukit Timah, Dunearn, and Orchard Road too.
According to the Meteorological Service Singapore (MSS), the heavy rain will expected to continue in Singapore for the second half of April 2021 and overall the rainfall in April 2021 is forecast to be above average over most part of the island, as the daily maximum temperatures on the most day will range from 33°C and 34°C. While on rainy days, the daily minimum temperature could reach a low of around 22°C.
Source MSS 
Source MSS