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Climate & Temperature > Usa > Portland, Maine Climate > Precipitation/ Rainfall
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Rainfall/ Precipitation in Portland, Maine, Usa

  • Portland, Maine bags an average of 1126.3 mm (44.3 in) of rainfall per year, or 93.9 mm (3.7 in) per month.
  • On average there are 133 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 11.1 days with a quantity of rain, sleet, snow etc. per month.
  • The driest weather is in August when an average of 72.9 mm (2.9 in) of rainfall (precipitation) occurs.
  • The wettest weather is in November when an average of 131.3 mm (5.2 in) of rainfall (precipitation) occurs.

Precipitation Table

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
rainfall iconAverage Precipitation mm (in) 89.7 (3.53) 84.6 (3.3) 93.2 (3.7) 103.6 (4.1) 91.9 (3.6) 87.4 (3.4) 78.5 (3.1) 72.9 (2.9) 78.5 (3.1) 99.1 (3.9) 131.3 (5.2) 115.6 (4.6) 1126.3 (44.3)
rainwater catchment iconPrecipitation Litres/m (Gallons/ft) 89.7 (2.2) 84.6 (2.08) 93.2 (2.29) 103.6 (2.54) 91.9 (2.25) 87.4 (2.14) 78.5 (1.93) 72.9 (1.79) 78.5 (1.93) 99.1 (2.43) 131.3 (3.22) 115.6 (2.84) 1126.3 (27.63)
rain days iconNumber of Wet Days (probability of rain on a day) 12 (39%) 11 (39%) 12 (39%) 12 (40%) 13 (42%) 12 (40%) 10 (32%) 10 (32%) 10 (33%) 9 (29%) 11 (37%) 11 (35%)   133 (36%)
sunny or cloudy iconPercentage of Sunny (Cloudy) Daylight Hours 51 (49) 52 (48) 56 (44) 52 (48) 58 (42) 61 (39) 68 (32) 68 (32) 62 (38) 61 (39) 46 (54) 52 (48)   59 (41)





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Precipitation Nearby Portland, Maine, Usa

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