TODAY NOV09
TEMPERATURE47
HUMIDITY
PRESSURE101760.99
WIND COND.105 14.5
  • 5849Sat30%
  • 5751Sun30%80%
  • 5547100%40%
  • 5547Tue
  • 5749Wed
daynightWeather update from Arena Cove at
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Weather Quick Facts

  • The highest monthly average temperature in Manchester for July is 74.1 degrees
  • The lowest monthly average temperature in Manchester for December is 44.4 degrees
  • The most monthly precipitation in Manchester occurs in December with 7.1 inches
  • The air quality index in Manchester is 22% better than the national average
  • The pollution index in Manchester is 12% worse than the national average

Compare Manchester, CA Weather

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      Manchester 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
      January35°F60°F45°F6.2"
      February38°F63°F48°F5.5"
      March40°F66°F51°F5.5"
      April42°F71°F55°F2.8"
      May47°F80°F62°F0.9"
      June52°F87°F68°F0.4"
      July56°F96°F74°F0.0"
      August54°F95°F72°F0.0"
      September50°F90°F68°F0.2"
      October45°F79°F59°F2.1"
      November40°F65°F51°F3.8"
      December35°F57°F44°F7.1"

      Manchester 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.
      IndexManchesterCaliforniaNational
      Air quality index335542
      Pollution index3,041,84010,473,1902,726,193

      Manchester air quality

      MeasurementTotal
      Days measured361
      Days with good air quality334
      Days with moderate air quality27
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.060%
      Benzene0.040%
      Carbon Tetrachloride0.000%
      Lead0.040%
      Mercury0.005%

      Average monthly Manchester temperature with heat index

      Manchester monthly precipitation with daily maximum

      Manchester monthly snow depth with daily maximum

      Manchester monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Anchor Bay, CA3263334.0%
      Philo, CA1563334.0%
      Point Arena, CA4073334.0%
      Manchester, CA2673334.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      No Name, CO2674412.0%
      Cantril, IA2672942.0%
      Allerton, IL2674216.0%
      Compton, IL2670100.0%
      Little York, IN2673530.0%
      Manchester, CA2673334.0%
      Source: The Manchester, CA 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.