TODAY SEP19
TEMPERATURE77
HUMIDITY41
PRESSURE
WIND COND.170 7.6
  • 9157Fri
  • 9058Sat
  • 9262Sun
  • 9565Mon
  • 9562Tue
daynightWeather update from Chico Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Hamilton City for July is 81 degrees
  • The lowest monthly average temperature in Hamilton City for December is 46.6 degrees
  • The most monthly precipitation in Hamilton City occurs in December with 4.1 inches
  • The air quality index in Hamilton City is 9% worse than the national average
  • The pollution index in Hamilton City is 34% better than the national average

Compare Hamilton City, CA Weather

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      Hamilton City 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
      January38°F58°F47°F3.5"
      February42°F62°F51°F3.9"
      March45°F67°F56°F3.7"
      April48°F74°F60°F2.1"
      May55°F84°F69°F0.7"
      June61°F92°F76°F0.3"
      July65°F98°F81°F0.0"
      August63°F95°F79°F0.0"
      September59°F90°F74°F0.2"
      October51°F79°F64°F1.2"
      November44°F65°F54°F2.6"
      December38°F57°F47°F4.1"

      Hamilton City 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.
      IndexHamilton CityCaliforniaNational
      Air quality index465542
      Pollution index1,812,23010,473,1902,726,193

      Hamilton City air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality224
      Days with moderate air quality136
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality2

      Hamilton City air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.020%
      Mercury0.020%

      Average monthly Hamilton City temperature with heat index

      Hamilton City monthly precipitation with daily maximum

      Hamilton City monthly snow depth with daily maximum

      Hamilton City monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Corning, CA7,5894118.0%
      Cohasset, CA497468.0%
      Nord, CA368468.0%
      Durham, CA6,255468.0%
      Orland, CA7,843468.0%
      Hamilton City, CA2,446468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Pembina, MB2,446n/a 
      Lovettsville, VA2,4474020.0%
      Hallowell, ME2,4442844.0%
      Jacksboro, TN2,444468.0%
      York, AL2,4483628.0%
      Hamilton City, CA2,446468.0%
      Source: The Hamilton City, 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.