St. Helena, NC Weather - Forecast & Monthly Averages

TEMPERATURE	72
HUMIDITY	49
PRESSURE	102610
WIND COND.	110 16.6

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Weather Quick Facts

The highest monthly average temperature in St. Helena for July is 80.6 degrees
The lowest monthly average temperature in St. Helena for January is 46.6 degrees
The most monthly precipitation in St. Helena occurs in September with 9.2 inches
The air quality index in St. Helena is 19% better than the national average
The pollution index in St. Helena is 65% better than the national average

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St. Helena 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	36°F	58°F	47°F	3.4"
February	37°F	60°F	48°F	3.9"
March	44°F	67°F	55°F	3.5"
April	53°F	75°F	64°F	3.3"
May	61°F	81°F	70°F	4.6"
June	70°F	88°F	78°F	5.7"
July	73°F	90°F	81°F	7.0"
August	72°F	88°F	79°F	8.4"
September	67°F	84°F	75°F	9.2"
October	56°F	76°F	65°F	6.1"
November	45°F	67°F	55°F	4.2"
December	41°F	62°F	50°F	4.8"

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St. Helena 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	St. Helena	North Carolina	National
Air quality index	34	35	42
Pollution index	949,752	2,789,538	2,726,193

St. Helena air quality information

Measurement	Total
Days measured	348
Days with good air quality	319
Days with moderate air quality	29
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

St. Helena air quality information

Pollutant	Total
Arsenic	0.002%
Benzene	0.020%
Carbon Tetrachloride	0.002%
Lead	0.010%
Mercury	0.002%

Average monthly St. Helena temperature with heat index

St. Helena monthly precipitation with daily maximum

St. Helena monthly snow depth with daily maximum

St. Helena monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Northchase, NC	4,987	34	32.0%
Rocky Point, NC	1,644	34	32.0%
Northwest, NC	778	34	32.0%
Watha, NC	255	34	32.0%
Castle Hayne, NC	993	34	32.0%
St. Helena, NC	410	34	32.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Arboles, CO	410	44	12.0%
Empire, CO	410	47	6.0%
Prairie City, IL	410	41	18.0%
Metamora, IN	410	6	88.0%
Arcadia, KS	410	37	26.0%
St. Helena, NC	410	34	32.0%

Source: The St. Helena, NC 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.