I use Yahoo's Weather api. but its pressure data is wrong.
For example, When I check seoul's weather data ( WOEID 28995004 ) with Celsius Unit, pressure is 1015.92 hPa and temp is -8 C But When I check with Fahrenheit Unit, It give 30.3 inHg (that is 1026.0756 hPa). and temp is 18 F ( - 7.77 C )
here is another example. When I check suwon's weather data ( WOEID 28806692 ) with Celsius Unit, pressure is 1025.6 hPa and temp is -7 C But When I check with Fahrenheit Unit, It give 30.28 inHg (that is 1025.3983hPa). and temp is 32 F ( - 6.66 C )
Some other place(Busan) also show 1015.92 hPa with Celsius Unit. 30.15 inHg (1020.996 ) in Hahrenheit
I think there is pressure change error between Celsius Unit and Fahrenheit Unit in some area.