Clover will at least sprout here...I have it sprouting up in the places I tossed the seeds, hopefully it will take. Fortunately it has been raining good and am looking forward to seeing how it works in the yard.
in most cases it is not the climate that is the problem here. the soil is not very good and in some cases toxic to non native plants. Do some research on soil conditions that white clover grows in and then compare to your local soil. Silliman has a horticulture dept. that can help you.