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High Chisos Lows???

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Offline dprather

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High Chisos Lows???
« on: July 26, 2016, 09:41:23 PM »
anyone have any current night-time temps from up in the High Chisos?
Leave "quit" at the car.  Embrace the trail as your friend.  Expect to enjoy yourself, and to be amazed.

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Offline Flash

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Re: High Chisos Lows???
« Reply #1 on: July 26, 2016, 09:55:14 PM »
Morning temp readings at BC3:
  Monday July 18th 60 deg F
  Tuesday July 19th 57 deg F

- Flash

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Offline dprather

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Re: High Chisos Lows???
« Reply #2 on: July 27, 2016, 07:12:16 AM »
Morning temp readings at BC3:
  Monday July 18th 60 deg F
  Tuesday July 19th 57 deg F

- Flash

Thanks.

Are these anomalies?
Leave "quit" at the car.  Embrace the trail as your friend.  Expect to enjoy yourself, and to be amazed.

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Offline Flash

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Re: High Chisos Lows???
« Reply #3 on: July 27, 2016, 08:03:05 AM »
Not especially. These are pretty typical, maybe slightly toward the lower end of the summer range.

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Offline Hang10er

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Re: High Chisos Lows???
« Reply #4 on: July 27, 2016, 03:07:26 PM »
If those are the lows, what are the daytime highs like?



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Offline Flash

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Re: High Chisos Lows???
« Reply #5 on: July 27, 2016, 03:37:08 PM »
For the days I was up there, about 80-82 degrees. That might seem relatively cool compared with lower elevations, but I still found myself actively seeking out the shade, especially in the 3 - 7 pm window...

A good rule of thumb is the temps are 3-5 degrees cooler in the high Chisos (~6500-7000'), at any given time, than whatever they are in the Basin (5400'). So the Boot Spring area might be 3 degrees cooler, while the South Rim might be 5 degrees cooler, give or take. Of course the temp range of the Basin varies also from week to week.

- Flash

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Offline dprather

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Re: High Chisos Lows???
« Reply #6 on: July 27, 2016, 04:54:21 PM »
The mid-80s out there is pretty brutal
Leave "quit" at the car.  Embrace the trail as your friend.  Expect to enjoy yourself, and to be amazed.

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Offline Imre

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Re: High Chisos Lows???
« Reply #7 on: July 27, 2016, 06:06:43 PM »
Quote
The mid-80s out there is pretty brutal

Even if the air temperature is comfortable you can't change the angle of the sun. And at 6500+ feet there is that much less atmosphere to shield you from UV. Sitting in the shade around Boot Spring always feels much more comfortable to me than the South Rim.
-Imre
For every complex problem there is a solution that is simple, obvious, and wrong.
- H.L. Mencken

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Offline Flash

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Re: High Chisos Lows???
« Reply #8 on: July 27, 2016, 06:30:20 PM »
Quote
The mid-80s out there is pretty brutal

Even if the air temperature is comfortable you can't change the angle of the sun. And at 6500+ feet there is that much less atmosphere to shield you from UV. Sitting in the shade around Boot Spring always feels much more comfortable to me than the South Rim.
-Imre
I was pleased to find a nice shady spot right on the Rim under a cluster of pinon pines. That worked well with breeze coming off the Rim. :icon_smile:

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Offline Jonathan Sadow

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Re: High Chisos Lows???
« Reply #9 on: July 31, 2016, 12:35:23 AM »
For the days I was up there, about 80-82 degrees. That might seem relatively cool compared with lower elevations, but I still found myself actively seeking out the shade, especially in the 3 - 7 pm window...

A good rule of thumb is the temps are 3-5 degrees cooler in the high Chisos (~6500-7000'), at any given time, than whatever they are in the Basin (5400'). So the Boot Spring area might be 3 degrees cooler, while the South Rim might be 5 degrees cooler, give or take. Of course the temp range of the Basin varies also from week to week.

- Flash

The 1981-2010 climate normals for The Basin on July 18 and 19 are as follows:
High: 83.55.1F
Low: 64.03.0F

The plus-minus numbers are the standard deviations of the measurements during the period.  In other words, there was about a two out of three chance that the high for those days was between 78.4 and 88.6, and the low was between 61 and 67.

The standard adiabatic correction of temperature with elevation is 1F for every 270 feet of elevation difference.  So for the Chisos Basin weather station (elevation 5300 feet), the temperature at Boot Canyon (about 7000 feet elevation) would be 6 to 7 degrees cooler, and on the South Rim (about 7350 feet elevation) it would be 7 to 8 degrees cooler.  From your readings, it looks like things were a bit on the warm side although not excessively so.

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Offline dprather

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Re: High Chisos Lows???
« Reply #10 on: July 31, 2016, 04:23:37 PM »
For the days I was up there, about 80-82 degrees. That might seem relatively cool compared with lower elevations, but I still found myself actively seeking out the shade, especially in the 3 - 7 pm window...

A good rule of thumb is the temps are 3-5 degrees cooler in the high Chisos (~6500-7000'), at any given time, than whatever they are in the Basin (5400'). So the Boot Spring area might be 3 degrees cooler, while the South Rim might be 5 degrees cooler, give or take. Of course the temp range of the Basin varies also from week to week.




- Flash

The 1981-2010 climate normals for The Basin on July 18 and 19 are as follows:
High: 83.55.1F
Low: 64.03.0F

The plus-minus numbers are the standard deviations of the measurements during the period.  In other words, there was about a two out of three chance that the high for those days was between 78.4 and 88.6, and the low was between 61 and 67.

The standard adiabatic correction of temperature with elevation is 1F for every 270 feet of elevation difference.  So for the Chisos Basin weather station (elevation 5300 feet), the temperature at Boot Canyon (about 7000 feet elevation) would be 6 to 7 degrees cooler, and on the South Rim (about 7350 feet elevation) it would be 7 to 8 degrees cooler.  From your readings, it looks like things were a bit on the warm side although not excessively so.

Thanks for this extensive and useful information.  I had never heard of the 270' rule, but had guestimated 3-degrees per 1,000'.

Question - do you have any Basin.High Chisos tempts for mid-August?
Leave "quit" at the car.  Embrace the trail as your friend.  Expect to enjoy yourself, and to be amazed.

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Offline Jonathan Sadow

  • Coyote
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  • 189
Re: High Chisos Lows???
« Reply #11 on: August 08, 2016, 01:10:11 PM »
For the days I was up there, about 80-82 degrees. That might seem relatively cool compared with lower elevations, but I still found myself actively seeking out the shade, especially in the 3 - 7 pm window...

A good rule of thumb is the temps are 3-5 degrees cooler in the high Chisos (~6500-7000'), at any given time, than whatever they are in the Basin (5400'). So the Boot Spring area might be 3 degrees cooler, while the South Rim might be 5 degrees cooler, give or take. Of course the temp range of the Basin varies also from week to week.




- Flash

The 1981-2010 climate normals for The Basin on July 18 and 19 are as follows:
High: 83.55.1F
Low: 64.03.0F

The plus-minus numbers are the standard deviations of the measurements during the period.  In other words, there was about a two out of three chance that the high for those days was between 78.4 and 88.6, and the low was between 61 and 67.

The standard adiabatic correction of temperature with elevation is 1F for every 270 feet of elevation difference.  So for the Chisos Basin weather station (elevation 5300 feet), the temperature at Boot Canyon (about 7000 feet elevation) would be 6 to 7 degrees cooler, and on the South Rim (about 7350 feet elevation) it would be 7 to 8 degrees cooler.  From your readings, it looks like things were a bit on the warm side although not excessively so.

Thanks for this extensive and useful information.  I had never heard of the 270' rule, but had guestimated 3-degrees per 1,000'.

Question - do you have any Basin.High Chisos tempts for mid-August?

The mean high for August 15 is 82.64.6F, and the low is 63.42.7F.

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Offline badknees

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Re: High Chisos Lows???
« Reply #12 on: August 08, 2016, 02:00:43 PM »
The temps sound about right, but I agree with Flash. I was pretty hot last week when hiking in the open sun....especially on the exposed part of the NE Rim trail...maybe I'm just getting old.
Not all those who wander are lost.
J.R.R. Tolkien

Through the Mirror
http://mirrormagic.com

 


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