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Climate tables. Data for Puttalam.


Monthly temperature

Month Record low Average low Average Average high Record high
january 15.0 (1974) 22.4 25.9 30.8 37.8 (1986)
february 11.0 (1974) 22.8 26.8 32.4 38.0 (1981)
march 17.0 (1992) 24.3 28.3 33.6 38.5 (1998)
april 20.0 (1976) 25.4 28.9 33.3 38.9 (1969)
may 16.0 (1978) 27.1 29.4 32.5 37.0 (1973)
june 21.0 (1974) 27.2 29.0 31.7 35.4 (2019)
july 21.0 (1977) 27.2 28.7 32.0 37.1 (2000)
august 22.2 (1984) 26.9 28.7 31.8 51.1 (1989)
september 20.3 (1985) 26.5 28.6 31.8 38.9 (1984)
october 19.0 (1974) 25.4 27.8 31.2 35.5 (1997)
november 16.7 (1988) 24.3 26.9 30.9 39.0 (1973)
december -10.0 (1985) 23.3 26.1 30.2 37.7 (1997)
year () ()
graphic

Monthly precipitation

Month Average Record low Record high Daily high
january 50.5 0.0 (1880) 265 (1899) 83 (2014)
february 42.1 0.0 (1876) 161 (1938) 282 (2012)
march 56.9 0.0 (1983) 353 (2014) 54 (1993)
april 154.4 0.0 (1879) 411 (2002) 86 (2014)
may 101.8 0.0 (1880) 458 (1926) 131 (2016)
june 32.1 0.0 (1993) 195 (1912) 51 (1973)
july 23.5 0.0 (2014) 356 (1928) 32 (2010)
august 23.3 0.0 (2016) 145 (2013) 142 (1994)
september 69.2 0.0 (2016) 365 (1951) 175 (2010)
october 230.6 3 (1974) 738 (1891) 81 (2015)
november 254.6 0.0 (2018) 610 (1941) 113 (2015)
december 143.7 0.0 (1879) 698 (1957) 182 (1989)
year () () ()
graphic

Number of days with solid, liquid, and mixed precipitation

Type of precipitation jan feb mar apr may jun jul aug sep oct nov dec Year

Wind speed, m/s

jan feb mar apr may jun jul aug sep oct nov dec Year

The frequency of different wind directions, %

direction jan feb mar apr may jun jul aug sep oct nov dec Year
graphic graphic graphic graphic

Air humidity, %

jan feb mar apr may jun jul aug sep oct nov dec Year

Snow cover

Month jul aug sep oct nov dec jan feb mar apr may jun Year
number of days
height (sm)  
max height (sm)

Cloudy, score

month jan feb mar apr may jun jul aug sep oct nov dec Year
total
low

Number of clear, cloudy and cloudy days

month jan feb mar apr may jun jul aug sep oct nov dec Year
Total cloud
Low cloud

Number of days with different phenomena

phenomenon jan feb mar apr may jun jul aug sep oct nov dec Year

The frequency of different types of clouds, %

type of clouds jan feb mar apr may jun jul aug sep oct nov dec Year