Hydrodynamic force of water droplet stated in psi at various mpg

I'm not a student of physics but do have puzzle I am trying to solve. Is there a way to calculate the force of a water droplet impacting a vertical surface stated in psi at various speeds of impact? A more practical way to state the problem would be; what psi will rain impact the chest of a motorcycle rider(sitting tall without a fairing) at 20mph, 40mph, 60mph etc?

The second part of the question is would the psi result change depending on the density (number of water droplets per square inch) of the water? Light rain vs. heavy rain, vs. riding that motorcycle into the vertical surface of a tidal wave?

Thanks in advance for any help. Best Regards, Washley