TODAY JUL18
TEMPERATURE72
HUMIDITY55
PRESSURE30.03
WIND COND.70 5.8
  • 7870Fri
  • 9172Sat
  • 8768Sun30%
  • 8163Mon
  • 8061Tue30%
daynightWeather update from Portland, Portland International Jetport at
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Valley Street Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January15°F36°F25°F3.2"
February15°F37°F26°F4.2"
March24°F44°F34°F4.0"
April34°F57°F45°F5.0"
May44°F67°F55°F4.5"
June53°F75°F63°F5.8"
July60°F82°F70°F4.3"
August58°F80°F69°F4.4"
September51°F74°F62°F4.1"
October41°F62°F51°F6.9"
November31°F52°F41°F4.4"
December21°F40°F30°F5.3"

Did you know?

  • The highest monthly average temperature in Valley Street for July is 70 degrees.
  • The lowest monthly average temperature in Valley Street for January is 25 degrees.
  • The most monthly precipitation in Valley Street occurs in October with 6.9 inches.
  • The air quality index in Valley Street is 24% better than the national average.
  • The pollution index in Valley Street is 60% better than the national average.

Compare Portland, ME Weather To Other Cities

Valley Street air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexValley StreetPortlandMaine
Air quality index383833
Pollution index2,043,7002,043,7002,555,853

Valley Street air quality information

MeasurementTotal
Days measured365
Days with good air quality287
Days with moderate air quality74
Days w/ poor A.Q. for sensitive groups4
Days with unhealthy air quality

Valley Street air quality information

PollutantTotal
Arsenic0.030%
Benzene0.020%
Carbon Tetrachloride0.003%
Lead0.030%
Mercury0.002%

Average monthly Valley Street temperature with heat index

Valley Street monthly precipitation with daily maximum

Valley Street monthly snow depth with daily maximum

Valley Street monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Biddeford, ME21,3413824%
Falmouth Foreside, ME1,6373824%
Littlejohn Island, ME953824%
Scarborough, ME5,2683824%
Westbrook, ME17,9693824%
Portland, ME66,6493824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Palo Alto, CA66,649484%
Camarillo, CA66,630484%
Woodbury, MN66,6994412%
South San Francisco, CA66,5874314%
Oshkosh, WI66,7133628%
Portland, ME66,6493824%
Source: The Valley Street, Portland, ME weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.
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