We recently (last week..11-12 thru 11-19) stayed in Needles, California at The Palms River Resort for $198.00 a week. Their bulletin says the monthly rate is $375 - $400 + Electric.
The convenience here (or maybe inconvenience) is that within 20 minutes of this Park you can be in 3 states (California, Nevada, Arizona) and a Sovereign Nation! The only inconvenience is knowing what time it is ...hour difference.
Condition of the campground (park) is excellent. Started out being a manufactured home on the Colorado River park. Economy last year changed the plans and they added RV's and are very receptive to the needs of RVers.
www.palmsriverresort.com
We would (and will) go again! I/we were quite surprised how beautiful the sunsets were! Temps...daytime - 70 - 80; nightime...cool..40 - 50.
Much to do in the area...Oatman...Lake Havasu...days drive to Quartzsite!!!