TODAY SEP21
TEMPERATURE88
HUMIDITY19
PRESSURE
WIND COND.241 6
  • 8859Fri
  • 8458Sat
  • 8154Sun
  • 8660Mon
  • 8860Tue
daynightWeather update from READER RANCH at
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Penn Valley 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°F57°F47°F10.1"
February41°F62°F51°F8.0"
March44°F67°F55°F8.4"
April46°F74°F59°F4.6"
May53°F83°F68°F2.6"
June58°F91°F75°F2.6"
July62°F96°F79°F0.2"
August60°F95°F77°F0.4"
September57°F90°F73°F1.3"
October50°F79°F63°F4.8"
November43°F65°F53°F7.5"
December37°F56°F46°F9.8"

Did you know?

  • The highest monthly average temperature in Penn Valley for July is 79 degrees.
  • The lowest monthly average temperature in Penn Valley for December is 46 degrees.
  • The most monthly precipitation in Penn Valley occurs in January with 10.1 inches.
  • The air quality index in Penn Valley is 15% better than the national average.
  • The pollution index in Penn Valley is 15% better than the national average.

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Compare Penn Valley, CA Weather To Other Cities

Penn Valley 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.
IndexPenn ValleyCaliforniaNational
Air quality index425550
Pollution index4,289,31018,106,7265,066,862

Penn Valley air quality information

MeasurementTotal
Days measured365
Days with good air quality262
Days with moderate air quality103
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Penn Valley air quality information

PollutantTotal
Arsenic0.050%
Benzene0.070%
Carbon Tetrachloride0.001%
Lead0.060%
Mercury0.010%

Average monthly Penn Valley temperature with heat index

Penn Valley monthly precipitation with daily maximum

Penn Valley monthly snow depth with daily maximum

Penn Valley monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bangor, CA4744216%
Grass Valley, CA12,8614216%
Meadow Vista, CA3,2144216%
Smartsville, CA1424216%
Beale AFB, CA1,0894216%
Penn Valley, CA1,6074216%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Point of Rocks, MD1,6074118%
Knightsen, CA1,6065714%
Nashville, MI1,6063432%
Robersonville, NC1,6063236%
Bennington, NE1,608484%
Penn Valley, CA1,6074216%
Source: The Penn Valley, 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.