I walked last year from Roncesvalles--March 8-April 4. I brought:
1 long sleeved Champion brand synthetic quick dry lightweight shirt
1 long sleeved LLBean synthetic lightweight shirt (with collar)--quickdry
1 duofold polyester/merino wool blend pullover shirt (it might have been an army surplus item)
2 pairs Champion brand lightweight synthetic trousers--quick dry
1 pair goretex LLBean brand trousers
1 synthetic quick dry t-shirt
2 pairs silk long johns
1 long sleeved silk long underwear shirt
1 fleece jacket (cheap--$10.00 at Target)
1 Mountain Hardware (I think this is the brand) lightweight/breathable hooded rain jacket
3 or 4 pairs Smartwool adrenaline hiking socks
1 pair lightweight cotton regular socks for evening/after shower wear
1 lightweight fleece stocking cap
1 cheap lightweight pair knit gloves
On cold days, the wool/poly shirt layer along with fleece (and silk layer) was warm enough. The silk longjohns made the lightweight trousers warm enough. I generally wore the t-shirt and 1 pair of silk long underwear as pajamas. I did not bring shorts. I hadn't originally packed the goretex trousers but the day I left I saw there was snow in Roncesvalles. They proved useful on the snowy days. There were some warm days where I wore the t-shirt or the long sleeves. The long sleeve shirts and the trousers are so lightweight that on warm and sunny days, they are fine. I have since bought a smartwool brand longsleeved base layer wool shirt which is lighter weight than the poly/wool shirt but should so as well. I had both snow and warm days and these clothes worked well for me. I also live in No. Virginia and bought nearly everything at REI, Hudson Trail Outfitters, or target. Summer walkers might think it seems like a lot but it worked out well for the varying temperatures. My packweight was about 14 pounds (6-7 kg) so I didn't think it was too much. Things don't always dry quickly in winter so I liked having plenty of socks. I thought March was a great time to walk. Have fun.
