TODAY AUG19
TEMPERATURE54
HUMIDITY100
PRESSURE30.1
WIND COND.
  • 6853Sun
  • 6853Mon
  • 6753Tue
  • 6854Wed
  • 6854Thu
daynightWeather update from Fortuna Rohnerville Airport at

Fortuna Average Weather

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°F53°F44°F6.0"
February40°F56°F49°F6.4"
March41°F57°F50°F6.8"
April40°F56°F49°F5.8"
May45°F59°F53°F3.6"
June47°F61°F55°F3.9"
July52°F65°F58°F1.0"
August50°F63°F56°F0.3"
September46°F63°F54°F0.4"
October44°F61°F53°F5.6"
November40°F58°F49°F4.0"
December39°F54°F47°F11.4"

Did you know?

  • The highest monthly average temperature in Fortuna for July is 58 degrees.
  • The lowest monthly average temperature in Fortuna for January is 44 degrees.
  • The most monthly precipitation in Fortuna occurs in December with 11.4 inches.
  • The air quality index in Fortuna is 37% better than the national average.
  • The pollution index in Fortuna is 11% worse than the national average.

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Compare Fortuna, CA Weather To Other Cities

Fortuna 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.
IndexFortunaCaliforniaNational
Air quality index315550
Pollution index5,642,31018,106,7265,066,862

Fortuna air quality information

MeasurementTotal
Days measured365
Days with good air quality318
Days with moderate air quality47
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Fortuna air quality information

PollutantTotal
Arsenic0.060%
Benzene0.080%
Carbon Tetrachloride0.000%
Lead0.050%
Mercury0.050%

Average monthly Fortuna temperature with heat index

Fortuna monthly precipitation with daily maximum

Fortuna monthly snow depth with daily maximum

Fortuna monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bayview, CA2,5273138%
Ferndale, CA1,4193138%
Loleta, CA6243138%
Rio Dell, CA3,3723138%
Cutten, CA2,9823138%
Fortuna, CA11,9173138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Martinsville, NJ11,9174020%
Mango, FL11,9164314%
Festus, MO11,9296020%
Plano, IL11,929198%
Robertsville, NJ11,9304020%
Fortuna, CA11,9173138%
Source: The Fortuna, 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.