TODAY NOV22
TEMPERATURE56
HUMIDITY99
PRESSURE
WIND COND.
  • 6150Fri100%100%
  • 6246Sat60%40%
  • 6049Sun70%80%
  • 6148Mon
  • 6245Tue
daynightWeather update from BIG ROCK at
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Weather Quick Facts

  • The highest monthly average temperature in Sleepy Hollow for July is 64.6 degrees
  • The lowest monthly average temperature in Sleepy Hollow for December is 46.6 degrees
  • The most monthly precipitation in Sleepy Hollow occurs in January with 3.8 inches
  • The air quality index in Sleepy Hollow is 5% better than the national average
  • The pollution index in Sleepy Hollow is 202% worse than the national average

Compare Sleepy Hollow, CA Weather

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      Sleepy Hollow 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
      January36°F58°F47°F3.8"
      February39°F62°F50°F3.4"
      March41°F66°F52°F3.0"
      April42°F69°F55°F1.6"
      May46°F74°F59°F0.5"
      June50°F80°F64°F0.3"
      July53°F81°F65°F0.0"
      August53°F80°F64°F0.0"
      September49°F82°F64°F0.1"
      October45°F76°F59°F1.3"
      November40°F66°F52°F1.8"
      December36°F58°F47°F3.8"

      Sleepy Hollow 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.
      IndexSleepy HollowCaliforniaNational
      Air quality index405542
      Pollution index8,232,36010,473,1902,726,193

      Sleepy Hollow air quality

      MeasurementTotal
      Days measured365
      Days with good air quality290
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.010%

      Average monthly Sleepy Hollow temperature with heat index

      Sleepy Hollow monthly precipitation with daily maximum

      Sleepy Hollow monthly snow depth with daily maximum

      Sleepy Hollow monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Point Reyes Station, CA2103432.0%
      Black Point-Green Point, CA1,7384020.0%
      Belvedere, CA2,2464020.0%
      Larkspur, CA12,3634020.0%
      Sausalito, CA7,1774020.0%
      Sleepy Hollow, CA2,3664020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Albany, IN2,3653530.0%
      Holcomb, KS2,3671570.0%
      Wells, MN2,3671570.0%
      Huntingdon, QC2,367n/a 
      Pouch Cove, NL2,364n/a 
      Sleepy Hollow, CA2,3664020.0%
      Source: The Sleepy Hollow, 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.