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Sandown Weather - Weather Calculation Page
Weather related calculator

Weather Computer
Original java script by Ron Murphy of the Birmingham, AL, National Weather Service

Temperature Conversion
Enter a number, then click on the appropriate button to see the result.

Fahrenheit ( o F )
Celsius (°C)
Celsius ( o C )
Fahrenheit (o F)

Windchill Calculation

Temp
(o F)
Wind
Speed
(mph)
Wind chill =
Temp
(o C)
Wind
Speed
(mph)
Wind chill =

Relative Humidity Calculation
Temp
(°F )
Dew
Point
(°F)
Relative Humidity =
Temp
(°C)
Dew
Point
(°C )
Relative Humidity =


Heat Index Calculation

Valid entries are, air temperatures greater than 80 °F ( 27 °C ), dew point temperatures greater than 65 °F ( 12 °C ), and relative humidities higher than 40 percent.
Temp
(°F )
Dew
Point
(°F)
  RH =
Temp
(°C)
Dew
Point
(°C )
  RH =
Temp
(°F )
Relative
Humidity
(%)
Heat Index =
Dew Point =
Temp
(°C)
Relative
Humidity
(%)
Heat Index =
Dew Point =