
Originally Posted by
landmariner
Visit all of the top national park and national monument websites on your list and start making a list of when they open and close during the year, check on the campsite(s) seasons of the parks and while you're at it try to determine the elevations of the campsites. Many can become very cold even during July. Being south (e.g., Arizona) or north (e.g., northern Wyoming) isn't always a good indicator of weather and climate. So its also a good idea to obtain general temperature ranges.