Lake Temperature Differences

Lakegeezer · 05-30-2020, 07:59 AM

What a difference in lake temperatures! The NH DES thermometer at Weirs Beach was reading 61 degrees on Friday May 29'th and up in Moultonboro Bay, I measured 75 degrees on the surface and 73, six feet down, using a calibrated thermometer and verified with a swim. That's a big delta!

thinkxingu · 05-30-2020, 08:38 AM

Quote:

Originally Posted by Lakegeezer

What a difference in lake temperatures! The NH DES thermometer at Weirs Beach was reading 61 degrees on Friday May 29'th and up in Moultonboro Bay, I measured 75 degrees on the surface and 73, six feet down, using a calibrated thermometer and verified with a swim. That's a big delta!

Is it possible DES's numbers are inaccurate or reporting a lower depth? They're almost always significantly lower than readings I get in your same area.

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Winilyme · 05-30-2020, 08:58 AM

68 degrees yesterday 20 inches down in the very churned up Spindle Point area taken on my extremely unofficial plastic, old, likely FLL issue Walmart thermometer. Was 52 degrees just ten days ago when my crazy wife took her inaugural annual dip. Also remember, there was snow in the air just three weeks ago.

upthesaukee · 05-30-2020, 09:33 AM

The Weirs water is constantly changing, drawing water from the deeper regions in close proximity to the channel.

Temperature gauges at a home dock are relatively shallow water without much current, and often with a sandy bottom, which can help warm the water more quickly.

Just like real estate and businesses, it's all about location, location, location.

Dave

Moccasin · 05-30-2020, 09:36 AM

Thank you both for the posts! We are keeping our eye on lake temps while wistfully distancing...

FlyingScot · 05-30-2020, 10:34 AM

75--wow! I swam a few days ago, and it was beautiful. But even in my 40 yards or so, there were dramatic swings in temperature every few feet as if there were currents of warmer and colder water. So I would not assert any one number is correct or incorrect

05-30-2020, 07:59 AM	#1
Lakegeezer Senior Member Join Date: Feb 2003 Location: Moultonboro, NH Posts: 1,692 Blog Entries: 1 Thanks: 356 Thanked 646 Times in 294 Posts	Lake Temperature Differences What a difference in lake temperatures! The NH DES thermometer at Weirs Beach was reading 61 degrees on Friday May 29'th and up in Moultonboro Bay, I measured 75 degrees on the surface and 73, six feet down, using a calibrated thermometer and verified with a swim. That's a big delta! __________________ -lg

05-30-2020, 09:33 AM	#4
upthesaukee Senior Member Join Date: Jan 2003 Location: Alton Bay Posts: 5,616 Blog Entries: 2 Thanks: 2,483 Thanked 1,988 Times in 1,088 Posts	Different locations The Weirs water is constantly changing, drawing water from the deeper regions in close proximity to the channel. Temperature gauges at a home dock are relatively shallow water without much current, and often with a sandy bottom, which can help warm the water more quickly. Just like real estate and businesses, it's all about location, location, location. Dave __________________ I Live Here... I am always UPTHESAUKEE !!!!

05-30-2020, 09:36 AM	#5
Moccasin Member Join Date: Oct 2004 Location: NY MA IL & Braun Bay Posts: 38 Thanks: 45 Thanked 10 Times in 5 Posts	water temps Thank you both for the posts! We are keeping our eye on lake temps while wistfully distancing...

05-30-2020, 08:58 AM	#3
Winilyme Senior Member Join Date: Oct 2019 Location: Ice in = CT / Ice out = Winnipesaukee Posts: 577 Thanks: 168 Thanked 324 Times in 175 Posts	68 degrees yesterday 20 inches down in the very churned up Spindle Point area taken on my extremely unofficial plastic, old, likely FLL issue Walmart thermometer. Was 52 degrees just ten days ago when my crazy wife took her inaugural annual dip. Also remember, there was snow in the air just three weeks ago.

The Following User Says Thank You to Winilyme For This Useful Post:
Moccasin (05-30-2020)

05-30-2020, 10:34 AM	#6
FlyingScot Senior Member Join Date: Jun 2016 Location: Tuftonboro and Sudbury, MA Posts: 2,539 Thanks: 1,411 Thanked 1,071 Times in 665 Posts	75--wow! I swam a few days ago, and it was beautiful. But even in my 40 yards or so, there were dramatic swings in temperature every few feet as if there were currents of warmer and colder water. So I would not assert any one number is correct or incorrect