CO temperatures in Sept.

Joined
Apr 19, 2020
Messages
91
What temperatures can I expect at night around 11-12k'? Will be in unit 74 in Sept.

Trying to build a sleep system around what you don't know is tough!

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Poser

WKR
Joined
Dec 27, 2013
Messages
5,033
Location
Durango CO
74 at that altitude is super pleasant in September. Cool mornings, warm afternoons. The only factor above 11.5 or so on the alpine tundra can be the wind. I find a 20 degree quilt + insulated pad to be entirely sufficient and I’ll often sleep in my underwear (no insulation on my legs), a lightweight merino top, a light beanie, no socks. If I do sleep in socks, they are super lightweight. Unless it’s an unusually cold year, it will be surprisingly warm. Despite the altitude, 74 is pretty far South. The nights and mornings are just cold enough to be exhilarating and the days are warm enough to make you look forward to the cold air.
 
Joined
Sep 7, 2016
Messages
1,797
Location
El Dorado HIlls
I am looking to try a 30 degree KUIU bag for similar situation. Although a 15 degree bag is more versatile it seems its more bag than need in August and sept.
 

CO-AJ

WKR
Joined
Apr 23, 2020
Messages
337
Location
Colorado
74 at that altitude is super pleasant in September. Cool mornings, warm afternoons. The only factor above 11.5 or so on the alpine tundra can be the wind. I find a 20 degree quilt + insulated pad to be entirely sufficient and I’ll often sleep in my underwear (no insulation on my legs), a lightweight merino top, a light beanie, no socks. If I do sleep in socks, they are super lightweight. Unless it’s an unusually cold year, it will be surprisingly warm. Despite the altitude, 74 is pretty far South. The nights and mornings are just cold enough to be exhilarating and the days are warm enough to make you look forward to the cold air.
Right on the money for the southern mountains of CO. To add to this, it will be drier than you think and it is easy to get dehydrated and not feel it until you quit. Have a good water supply plan and/or water resupply plan. That headache you feel is only partly from the Bourbon...
 

McNutt

FNG
Joined
Mar 18, 2019
Messages
5
I’m no help with your question. But I’m assuming we’re from the same area judging from your screen name. What part of ETx are you from?
 

Nickd160

FNG
Joined
May 28, 2020
Messages
43
15 degree bag last year at 10k in 71 most nights had to remove some layers but had frost a couple mornings and was still comfortable in a 15 degree bag
 

_Scooter_

Lil-Rokslider
Joined
May 11, 2020
Messages
140
Location
Northern CA
I've used an REI Igneo sleeping bag in Colorado quite a bit for a 3-season bag and it served me well. They're not super heavy (but there are lighter out there but you're going to spend a LOT more) and the price is reasonable, and even better when they go on sale or offer their 20% off coupons.

I realize the Igneo is not the latest, greatest, lightest or most expensive, flavor of the month bougie brand than all the cool kids and internet influencers are pushing, but it's a decent bag for the working man who can't afford the most expensive and/or isn't a label snob.
 

Nickd160

FNG
Joined
May 28, 2020
Messages
43
Forgot to mention my bag. Outdoor Vital Mummy Pod. I use a hammock system and no under quilt needed. Solid set up
 
OP
E
Joined
Apr 19, 2020
Messages
91
Thanks for all of the feedback. I ended up purchasing the Big Agnes Torchlight UL 20° bag and a Klymit Insulated Static V Luxe XL pad.

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Wapiti16

FNG
Joined
May 27, 2020
Messages
99
What temperatures can I expect at night around 11-12k'? Will be in unit 74 in Sept.

Trying to build a sleep system around what you don't know is tough!

Sent from my SM-G960U using Tapatalk

I hunt 73 every year in late Sept around 10,000 and its always pleasant. 30s at night. Can be pretty hot still during the day in the sun.

I'm in Louisiana btw.
 

FlyGuy

WKR
Joined
Aug 13, 2016
Messages
2,087
Location
The Woodlands, TX
I hunt 73 every year in late Sept around 10,000 and its always pleasant. 30s at night. Can be pretty hot still during the day in the sun.

I'm in Louisiana btw.

Hey, I’m a LA native myself. Will be hunting 74 this year for the 1st time. Was planning to run Sitka Apex pants. Just right or too hot? Will be packing in for 8-9 day stretch so trying to cover all bases with one pant. Or would you go with the lighter Ascent Pant?

(Top will be the lw hoodie, apex hoodie in the early/late hours mtn vest and puffy in pack.)




You can’t cheat the mountain
 
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