Modesto, CA Weather - Forecast & Monthly Averages

TEMPERATURE	59
HUMIDITY	62
PRESSURE	101220
WIND COND.	10 7.6

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Weather Quick Facts

The highest monthly average temperature in Modesto for July is 80.2 degrees
The lowest monthly average temperature in Modesto for January is 46.9 degrees
The most monthly precipitation in Modesto occurs in January with 2.4 inches
The air quality index in Modesto is 16% worse than the national average
The pollution index in Modesto is 185% worse than the national average

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Modesto 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	38°F	58°F	47°F	2.4"
February	42°F	64°F	52°F	1.9"
March	46°F	70°F	57°F	1.7"
April	49°F	76°F	61°F	1.3"
May	54°F	85°F	69°F	0.4"
June	60°F	93°F	76°F	0.2"
July	64°F	98°F	80°F	0.0"
August	63°F	96°F	78°F	0.0"
September	59°F	91°F	74°F	0.1"
October	52°F	80°F	64°F	0.7"
November	44°F	68°F	54°F	1.1"
December	38°F	58°F	47°F	2.3"

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Modesto 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	Modesto	California	National
Air quality index	49	55	42
Pollution index	7,774,440	10,473,190	2,726,193

Modesto air quality information

Measurement	Total
Days measured	365
Days with good air quality	201
Days with moderate air quality	141
Days w/ poor A.Q. for sensitive groups	22
Days with unhealthy air quality	1

Modesto air quality information

Pollutant	Total
Arsenic	0.030%
Benzene	0.090%
Carbon Tetrachloride	0.000%
Lead	0.050%
Mercury	0.040%

Average monthly Modesto temperature with heat index

Modesto monthly precipitation with daily maximum

Modesto monthly snow depth with daily maximum

Modesto monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Lathrop, CA	23,863	45	10.0%
Manteca, CA	81,078	45	10.0%
Delhi, CA	11,837	48	4.0%
Oakdale, CA	22,932	49	2.0%
Valley Home, CA	209	49	2.0%
Modesto, CA	214,485	49	2.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Enterprise, NV	214,591	54	8.0%
Richmond Hill, ON	215,407	n/a
Des Moines, IA	215,408	39	22.0%
Tacoma, WA	215,766	18	64.0%
Fontana, CA	212,704	89	78.0%
Modesto, CA	214,485	49	2.0%

Source: The Modesto, 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.