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Weather in January in Portland, Maine

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< January >
 
Normal Max/ High Temperature -1°C (30°F)
 
Average Temperature -6°C (21°F)
 
Min/ Low Temperature -11°C (11°F)
 
Normal Precipitation 90mm (3.5in)
Number of Wet Days (probability of rain on a day) 12 (39%)
Average Sunlight per day 04:40
Average Daylight per day 09:19
Sunny (Cloudy) Daylight Hours 51% (49%)
Sun altitude at solar noon on the 21st day.
26.5°


  • The average temperature in Portland, Maine in January is cold at -6.2 °C (20.84 °F).
  • Afternoons can be slightly cold with average high temperatures reaching -0.9 °C (30.4 °F).
  • Overnight temperatures are generally very cold with an average low of -11.4 °C (11.5 °F).
  • The range/ variation of diurnal average temperatures in January is 10.5 °C (18.9 °F).
  • The weather in January is dryish with snow occasionally. Just 89.7mm (3.5in) of water is released across an average of 12 days.
  • The skies in Portland, Maine are slightly fair with on balance a modest 4:40 of bright sunshine per day.
  • The shortest day is 8:59 long and the longest day is 9:47 long with an average length of 9:19.
  • There are approximately 4:28 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 51.1% of daylight hours and cloudy 48.9% of daylight hours.

Check the distance to and compare the Portland, Maine January averages with somewhere beginning with:

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Weather Trend Graph for January in Portland, Maine, Usa

Graph of weather in Portland, Maine in January

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