You guessed it...the Pacific Northwest.
Here is the difference of May temperatures from normal (red above normal and blue below normal). The cold almost perfectly follows the state boundaries of our region. Only the Cascade western foothills were above normal--perhaps due to downslope warming.
What about January through May? A similar picture with Oregon, Washington and northwest CA cooler than normal. You will notice that warmest temperatures were shifted back to the Great Plains for Jan-May.
That is why we are shivering and our snowpack is way above normal while southern Utah has already started their wildfire season (see image below).