no, it matters... keep the seeds in a fridge... with something that absorbs moisture, like some rice.. put some rice in a little plastic container then put your bags or packages of seeds in there.. the rice will keep them dry and the cool dark place is perfect for long time storage.
main thing is do not leave in the sun, do not heat up, do not allow to get moist and do not vibrate too much (store them in your car for example).. IMO those are the main causes of killing seeds prematurely... other than the really obvious ones.. cracked or crushed seeds, etc..