Can camera raw tell you the temp of a jpeg?

Question

Can camera raw tell you the temperature of a jpeg?
If you shoot jpeg and forget what your set you K settng at, will camera raw tell you?
I opened a jpeg in camera raw and don't think it help with this. thanks.

Answer 1

It should be there, at least it is on my Canon 400D, but you need a software that knows where to read it. For instance, there is a command prompt utility ExifTool, and it shows complete WB data in jpg files (in K). Looks like this
Color Data Version              : 1 (1DmkIIN/5D/30D/400D)
WB RGGB Levels As Shot          : 2162 1117 1117 2480
Color Temp As Shot              : 3764
WB RGGB Levels Auto             : 2162 1117 1117 2480
Color Temp Auto                 : 3764
WB RGGB Levels Measured         : 2044 1117 1116 2658
Color Temp Measured             : 3559
WB RGGB Levels Daylight         : 2294 1024 1024 1549
Color Temp Daylight             : 5200
WB RGGB Levels Shade            : 2675 1024 1024 1279
Color Temp Shade                : 7000
WB RGGB Levels Cloudy           : 2491 1024 1024 1400
Color Temp Cloudy               : 6000
WB RGGB Levels Tungsten         : 1781 1186 1186 2859
Color Temp Tungsten             : 3200
WB RGGB Levels Fluorescent      : 2021 1076 1076 2311
Color Temp Fluorescent          : 3769
WB RGGB Levels Kelvin           : 2294 1024 1024 1549
Color Temp Kelvin               : 5210
WB RGGB Levels Flash            : 2539 1024 1024 1369
Color Temp Flash                : 6245
WB RGGB Levels PC1              : 512 1024 1024 512
Color Temp PC1                  : 4100
WB RGGB Levels PC2              : 512 1024 1024 512
Color Temp PC2                  : 4100
WB RGGB Levels PC3              : 512 1024 1024 512
Color Temp PC3                  : 4100
WB RGGB Levels Custom           : 2294 1024 1024 1549
Color Temp Custom               : 5210