Were planning on taking a trip down to the southern states, driving around texas, arizona, new mexico, nevada. Were wondering about heading down at the end of March and doing a 2 week loop on our bikes. Our plan is too haul our bikes to Salt lake city, but are wondering if the weather that time of year will be good enough?? Anybody with experience with Utah and the other states I listed? Do you think this is still too early in the year?? Any advice on the weather we would expect would be appreciated.