Signal Hill, CA Weather - Forecast & Monthly Averages

TEMPERATURE	70
HUMIDITY	41
PRESSURE	101730
WIND COND.	200 11.2

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Weather Quick Facts

The highest monthly average temperature in Signal Hill for August is 72.1 degrees
The lowest monthly average temperature in Signal Hill for December is 56.2 degrees
The most monthly precipitation in Signal Hill occurs in December with 2.7 inches
The air quality index in Signal Hill is 71% worse than the national average
The pollution index in Signal Hill is 56% worse than the national average

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Signal Hill 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	46°F	70°F	57°F	2.6"
February	48°F	70°F	58°F	2.5"
March	51°F	72°F	60°F	1.0"
April	53°F	74°F	62°F	0.6"
May	57°F	75°F	65°F	0.3"
June	61°F	78°F	67°F	0.0"
July	65°F	83°F	71°F	0.2"
August	65°F	85°F	72°F	0.0"
September	63°F	85°F	72°F	0.3"
October	59°F	81°F	68°F	0.5"
November	52°F	76°F	62°F	0.7"
December	46°F	69°F	56°F	2.7"

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Signal Hill 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	Signal Hill	California	National
Air quality index	72	55	42
Pollution index	4,251,410	10,473,190	2,726,193

Signal Hill air quality

Measurement	Total
Days measured	365
Days with good air quality	66
Days with moderate air quality	208
Days w/ poor A.Q. for sensitive groups	62
Days with unhealthy air quality	28

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.100%
Carbon Tetrachloride	0.000%
Lead	0.010%
Mercury	0.000%

Average monthly Signal Hill temperature with heat index

Signal Hill monthly precipitation with daily maximum

Signal Hill monthly snow depth with daily maximum

Signal Hill monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Hacienda Heights, CA	55,386	72	44.0%
Westmont, CA	35,188	72	44.0%
Bell Gardens, CA	41,770	72	44.0%
Downey, CA	111,263	72	44.0%
La Habra Heights, CA	5,318	72	44.0%
Signal Hill, CA	11,430	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Pontiac, IL	11,430	44	12.0%
Urbana, OH	11,428	45	10.0%
Selkirk, MB	11,428	n/a
Gardnerville Ranchos, NV	11,432	13	74.0%
Manvel, TX	11,432	52	4.0%
Signal Hill, CA	11,430	72	44.0%

Source: The Signal Hill, 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.