Hayward, CA Weather - Forecast & Monthly Averages

TEMPERATURE	59
HUMIDITY	81
PRESSURE	102100
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Hayward for August is 64.4 degrees
The lowest monthly average temperature in Hayward for December is 49.2 degrees
The most monthly precipitation in Hayward occurs in January with 3.5 inches
The air quality index in Hayward is 2% worse than the national average
The pollution index in Hayward is 136% worse than the national average

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Hayward 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	42°F	58°F	50°F	3.5"
February	46°F	61°F	53°F	3.3"
March	46°F	64°F	54°F	2.6"
April	48°F	66°F	56°F	1.8"
May	52°F	69°F	59°F	0.6"
June	56°F	73°F	62°F	0.1"
July	57°F	75°F	64°F	0.0"
August	58°F	76°F	64°F	0.0"
September	57°F	76°F	64°F	0.2"
October	53°F	72°F	61°F	1.4"
November	48°F	66°F	56°F	1.3"
December	42°F	58°F	49°F	3.2"

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Hayward 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	Hayward	California	National
Air quality index	43	55	42
Pollution index	6,427,290	10,473,190	2,726,193

Hayward air quality

Measurement	Total
Days measured	365
Days with good air quality	263
Days with moderate air quality	98
Days w/ poor A.Q. for sensitive groups	4
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.110%
Carbon Tetrachloride	0.010%
Lead	0.010%
Mercury	0.003%

Average monthly Hayward temperature with heat index

Hayward monthly precipitation with daily maximum

Hayward monthly snow depth with daily maximum

Hayward monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Alamo, CA	13,864	40	20.0%
Blackhawk, CA	10,590	40	20.0%
Danville, CA	44,933	40	20.0%
Oakland, CA	422,575	40	20.0%
Castle Hill, CA	1,164	40	20.0%
Hayward, CA	158,817	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Alexandria, VA	158,309	47	6.0%
Barrie, ON	159,618	n/a
Lancaster, CA	157,697	72	44.0%
Coquitlam, BC	159,980	n/a
Abbotsford, BC	160,174	n/a
Hayward, CA	158,817	43	14.0%

Source: The Hayward, 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.