Record breaking heat wave will continue to affect much of the western United States through this holiday weekend. The heat also lingers for the lower Mississippi Valley and Southern Plains, then shifts over the mid-Atlantic and Southeast. Severe weather and flooding concerns through today for the Midwest, Ohio Valley, and Southern Plains. We continue to closely watch the track of Hurricane Beryl. Read More >
San Joaquin Valley, CA
Weather Forecast Office
National Weather Service Hanford, CA
Meteorological Calculator
Thanks to Ron Murphy, NWS Birmingham, AL for writing the JavaScript.
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Temperature Conversion |
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| Enter a number then click on the the conversion button. | ||||
| Fahrenheit (o F) |
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| Celsius (o C) |
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Wind Speed Calculations |
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| Enter a speed into any blank to convert to all other wind speeds. | ||||||
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mph knots m/sec km/hr |
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Wind Chill Calculation |
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| Enter the temperature in degrees Fahrenheit and wind speed in mph, then click on the Calculate WC to compute the windchill index. | ||||||
| Temp (o F) |
Wind (mph) |
Index |
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Relative Humidity Calculation |
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| Enter the air temperature and the dew point in degrees Fahrenheit, then click on the Calculate RH to compute the relative humidity. | ||||||
| Temp (o F) |
Dew Point |
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Heat Index Calculations |
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| Enter the temperature in degrees Fahrenheit and relative humidity (RH) in percent (without the % sign), or the Dew Point (Tdp). Then click on the Calculate HI to compute the heat index (HI). | ||||||||
| Temp (o F) | RH | HI |
Tdp |
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OR |
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| Temp (o F) | Tdp | HI | RH | |||||
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
San Joaquin Valley, CA
900 Foggy Bottom Rd
Hanford, CA 93230-5236
559-584-3752
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