Bethel Island, CA Weather - Forecast & Monthly Averages

TEMPERATURE	51
HUMIDITY	79
PRESSURE
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Bethel Island for July is 70.8 degrees
The lowest monthly average temperature in Bethel Island for January is 48.3 degrees
The most monthly precipitation in Bethel Island occurs in December with 3.1 inches
The air quality index in Bethel Island is 7% worse than the national average
The pollution index in Bethel Island is 402% worse than the national average

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Bethel Island Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	39°F	60°F	48°F	2.5"
February	42°F	65°F	53°F	2.6"
March	46°F	69°F	56°F	2.7"
April	48°F	74°F	60°F	1.5"
May	52°F	79°F	63°F	0.1"
June	56°F	87°F	69°F	0.4"
July	58°F	90°F	71°F	0.0"
August	58°F	88°F	70°F	0.0"
September	57°F	88°F	70°F	0.1"
October	52°F	80°F	64°F	0.7"
November	44°F	67°F	54°F	1.6"
December	39°F	60°F	49°F	3.1"

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Bethel Island 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.
Index	Bethel Island	California	National
Air quality index	45	55	42
Pollution index	13,698,500	10,473,190	2,726,193

Bethel Island air quality information

Measurement	Total
Days measured	365
Days with good air quality	229
Days with moderate air quality	123
Days w/ poor A.Q. for sensitive groups	12
Days with unhealthy air quality	1

Bethel Island air quality information

Pollutant	Total
Arsenic	0.040%
Benzene	0.110%
Carbon Tetrachloride	0.330%
Lead	0.070%
Mercury	0.120%

Average monthly Bethel Island temperature with heat index

Bethel Island monthly precipitation with daily maximum

Bethel Island monthly snow depth with daily maximum

Bethel Island monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Pittsburg, CA	71,723	40	20.0%
Antioch, CA	111,468	45	10.0%
Knightsen, CA	1,100	45	10.0%
Isleton, CA	495	45	10.0%
Brentwood, CA	63,013	45	10.0%
Bethel Island, CA	2,015	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Presquille, LA	2,015	41	18.0%
St. Bonaventure, NY	2,015	9	82.0%
Jonestown, TX	2,015	44	12.0%
Wilson-Conococheague, MD	2,014	40	20.0%
Steep Falls, ME	2,016	40	20.0%
Bethel Island, CA	2,015	45	10.0%

Source: The Bethel Island, 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.