San Juan, TX Weather - Forecast & Monthly Averages

TEMPERATURE	57
HUMIDITY	77
PRESSURE	102240
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in San Juan for August is 87 degrees
The lowest monthly average temperature in San Juan for January is 61 degrees
The most monthly precipitation in San Juan occurs in September with 4.6 inches
The air quality index in San Juan is equal to the national average
The pollution index in San Juan is 162% worse than the national average

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San Juan 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	51°F	74°F	61°F	1.0"
February	56°F	78°F	65°F	0.8"
March	62°F	84°F	71°F	1.0"
April	68°F	89°F	77°F	1.5"
May	73°F	93°F	81°F	2.1"
June	77°F	97°F	85°F	1.8"
July	78°F	98°F	86°F	3.3"
August	78°F	99°F	87°F	1.8"
September	75°F	95°F	83°F	4.6"
October	68°F	90°F	78°F	1.6"
November	60°F	82°F	70°F	1.1"
December	54°F	75°F	63°F	1.4"

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San Juan 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	San Juan	Texas	National
Air quality index	42	52	42
Pollution index	7,136,530	2,009,300	2,726,193

San Juan air quality

Measurement	Total
Days measured	365
Days with good air quality	243
Days with moderate air quality	120
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.080%
Carbon Tetrachloride	0.010%
Lead	0.020%
Mercury	0.001%

Average monthly San Juan temperature with heat index

San Juan monthly precipitation with daily maximum

San Juan monthly snow depth with daily maximum

San Juan monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Donna, TX	16,381	42	16.0%
Mercedes, TX	16,561	42	16.0%
Scissors, TX	3,511	42	16.0%
Indian Hills, TX	2,600	42	16.0%
Mission, TX	83,796	42	16.0%
San Juan, TX	36,759	42	16.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Clermont, FL	36,757	39	22.0%
Campbell River, BC	36,740	n/a
Waxahachie, TX	36,735	51	2.0%
Texarkana, TX	36,733	39	22.0%
New Albany, IN	36,730	49	2.0%
San Juan, TX	36,759	42	16.0%

Source: The San Juan, TX 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.