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ABC Action News Weather Calculators

Have you ever wondered how relative humidity affects how hot it really feels outside? Confused about what the dew point really is? You can learn all about these and other weather terms with our interactive weather calculators below

Barometric Pressure Conversions
(Enter a unit; click Convert for the other two.)
Millibars:   mb
Inches:   " mercury
Millimeters:   mm
   

Related weather definitions from ABC Action News:

 • barometer – a device used to measure the atmosphere's barometric pressure at a given altitude.
 • barometric pressure – the weight of the air above a given location from the surface of the earth to the top of the atmosphere.

ABC Action News Weather Calculators:
 • Barometric Pressure Conversions
 • Cloud Base Calculator
 • Density Altitude Calculator
 • Dew Point Calculator
 • Fahrenheit / Celsius Conversion
 • Heat Index Calculator 1
 • Heat Index Calculator 2
 • Relative Humidity Calculator
 • Relative Humidity / Dew Point Calculator
 • Wind Chill Calculator
 • Wind Velocity

Learn more weather terminology here.

 

 

Coastal Headlines
The coldest winter ever? Not even close
In fact, it's barely in the top 10.
Rainy, blustery weather ushers in new cold front
A section of roof was ripped off of a home in Port Richey druing this morning's storm which also played a role in numerous crashes around the Bay area.
National Weather Service holds Open House
Get 'into weather' at the NWS Offices in Ruskin.
 

Weather Photos
 

Weather Almanac

Place: Eastern U.S.
Year: 1958
Event: (19th-22nd) Virginia to New England had 17 to 30 inches of very wet snow. Forty-nine deaths linked to snow; also damage to power lines. Eight hundred people trapped in restaurant along PA turnpike near Morgantown.

Place: Charleston, WV
Year: 1990
Event: Two inches of snow. Five days before, the high had reached 89 degrees.

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