Palo Alto, CA Weather - Forecast & Monthly Averages

TEMPERATURE	50
HUMIDITY	87
PRESSURE	101590
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Palo Alto for July is 66.7 degrees
The lowest monthly average temperature in Palo Alto for January is 50.4 degrees
The most monthly precipitation in Palo Alto occurs in December with 2.6 inches
The air quality index in Palo Alto is 2% worse than the national average
The pollution index in Palo Alto is 321% worse than the national average

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Palo Alto 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	61°F	50°F	2.4"
February	45°F	63°F	53°F	2.4"
March	47°F	67°F	56°F	2.0"
April	49°F	70°F	58°F	1.3"
May	53°F	73°F	61°F	0.3"
June	56°F	77°F	65°F	0.2"
July	59°F	78°F	67°F	0.0"
August	59°F	78°F	66°F	0.0"
September	57°F	80°F	67°F	0.1"
October	53°F	75°F	63°F	0.7"
November	47°F	67°F	56°F	1.3"
December	42°F	60°F	51°F	2.6"

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Palo Alto 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	Palo Alto	California	National
Air quality index	43	55	42
Pollution index	11,477,200	10,473,190	2,726,193

Palo Alto 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	0.070%
Benzene	0.110%
Carbon Tetrachloride	0.000%
Lead	0.160%
Mercury	0.090%

Average monthly Palo Alto temperature with heat index

Palo Alto monthly precipitation with daily maximum

Palo Alto monthly snow depth with daily maximum

Palo Alto monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Loma Mar, CA	282	35	30.0%
Pescadero, CA	418	35	30.0%
South San Francisco, CA	66,878	40	20.0%
Fremont, CA	234,829	43	14.0%
Stanford, CA	16,200	43	14.0%
Palo Alto, CA	67,973	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Redmond, WA	67,959	45	10.0%
Gaithersburg, MD	67,878	47	6.0%
Palatine, IL	67,875	55	10.0%
Union City, NJ	68,073	51	2.0%
Yorba Linda, CA	68,103	89	78.0%
Palo Alto, CA	67,973	43	14.0%

Source: The Palo Alto, 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.