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Portland, Maine vs Atlanta, Georgia Climate & Distance Between

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  • The distance between Portland, Maine, Usa and Atlanta, Georgia, Usa is approximately 1,650 km or 1,025 mi.
  • To reach Portland, Maine in this distance one would set out from Atlanta, Georgia bearing 43.5° or NE and follow the great circles arc to approach Portland, Maine bearing 52.4° or NE .
  • Portland, Maine has a warm summer continental/ hemiboreal climate with no dry season (Dfb) whereas Atlanta, Georgia has a humid subtropical climate (Cfa).
  • Portland, Maine is in or near the cool temperate wet forest biome whereas Atlanta, Georgia is in or near the warm temperate moist forest biome.
  • The average annual temperature is 8.9 °C (16°F) cooler.
  • Average monthly temperatures vary by 5.5 °C (9.9°F) more in Portland, Maine. The continentality subtype is subcontinental for both.
  • Total annual precipitation averages 163.4 mm (6.4 in) less which is equivalent to 163.4 l/m² (4.01 US gal/ft²) or 1,634,000 l/ha (174,685 US gal/ac) less. About 7/8 as much.
  • There are 71 fewer hours of sunlight per year in Portland, Maine. In whichever way circa 0h 11' less per day or about 1 as many.
  • The altitude of the sun at midday is overall 9.9° lower in Portland, Maine than in Atlanta, Georgia.
  • Relative humidity levels are 5.9% higher.
  • The mean dew point temperature is 6.6°C (11.8°F) lower.

Climate Comparison Table

The table shows values for Portland, Maine relative to Atlanta, Georgia. You can also view this comparison the other way around from the perspective of Atlanta, Georgia vs Portland, Maine.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -11 (-20) -12 (-22) -13 (-23) -11 (-20) -9 (-16) -7 (-13) -5 (-9) -5 (-10) -7 (-13) -8 (-14) -9 (-16) -11 (-19) -9 (-16)
average temperature iconAverage Temperature °C ( °F) -11 (-20) -12 (-21) -11 (-20) -10 (-18) -9 (-16) -8 (-14) -6 (-10) -6 (-11) -8 (-14) -8 (-14) -8 (-14) -10 (-18) -9 (-16)
minimum temperature iconAverage Min Temperature °C ( °F) -11 (-20) -12 (-21) -10 (-18) -9 (-16) -9 (-15) -8 (-14) -6 (-11) -7 (-12) -8 (-15) -8 (-14) -7 (-12) -10 (-17) -9 (-15)
rainfall iconAverage Precipitation mm (in) -31 (-1) -38 (-1) -53 (-2) -5 (0) -17 (-1) -3 (0) -49 (-2) -20 (-1) -8 (0) +22 (+1) +33 (+1) +6 (+0) -163 (-6)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +1 (+3) 0 ( 0) 0 ( 0) +2 (+7) +4 (+13) +2 (+7) -2 ( -6) 0 ( 0) +3 (+10) +2 (+6) +3 (+10) 0 ( 0)   +15 (+4)
sunshine iconAverage Sunlight Hours/ Day +0h 05' +0h 19' +0h 09' -1h 22' -0h 23' -0h 16' +1h 13' +0h 21' +0h 14' -0h 44' -1h 28' -0h 30'   -0h 11'
daylight iconAverage Daylight Hours & Minutes/ Day -0h 53' -0h 32' -0h 05' +0h 22' +0h 46' +0h 59' +0h 54' +0h 32' +0h 05' -0h 22' -0h 47' -1h 00'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -10 -9.9 -10 -10 -10 -10 -10 -10 -10 -10 -10 -9.9   -9.9
relative humidity iconRelative Humidity (%) +2 +3 +6 +9 +8 +9 +3 +4 +6 +8 +11 +1   +5.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -9.8 (-18) -10 (-18) -8.5 (-15) -6.9 (-12) -6.1 (-11) -4.6 (-8) -4.5 (-8) -4.6 (-8) -5.5 (-10) -5.1 (-9) -4.6 (-8) -8.6 (-15) -6.6 (-12)

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Portland, Maine vs Atlanta, Georgia Discussion

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