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Edge 500 and temperature


ps's picture

By ps - Posted on 04 July 2013

Been riding a bit lately in Canberra and noticed my garmin only records temperature in whole degrees. Also it doesn't seem to measure values below zero. Is this something anyone else has experienced?

Lach's picture

... I haven't looked at temperature while on the move, but the uploaded graphs clearly show step measurements between degrees rather than even curves. The average calculates to one decimal place.

Haven't had the pleasure of riding in sub zero temps since I got the Garmin, so can't comment on the negative temps bit. However, even with elevation correction enabled, I find that I have been riding below sea level at times!!

Rob's picture

I'm not sure about this. Thought I'd looked at the raw output from the Edge and seen decimal degrees. In fact, I recall thinking it was odd the way Garmin Connect graphs to the nearest integer instead of using those decimals.

The temperature field on the display definitely shows decimals. The one I'm looking at just flicked from 20.0 to 19.9 as I type.

FWIW, I think mine is broken, it said the ride today was 22°C yet it's the middle of winter Eye-wink

mike95's picture

I have the edge 800 & it has always read approx 2-3 degrees cooler than real temperature.

ps's picture

My ride today varied between 2 & 3 so I guess your's must be broken. There was also a puddle that had a funny layer of cold hard stuff on the surface although I guess you don't see that when you only ride in Sydney in the middle of the day.

What got me looking was a ride I had last week that only showed temp data for the first bit of the ride. When I had a look at the native file on the garmin file system there was only ever n.0 figures in the file. I suspect that the file format doesn't support decimals even though the hardware can. Anyway it also had 0.0 for the bits it didn't show in the graph. Weird.

Brian's picture

Don't forget the garmins are just reading the air temp around it so when you are riding in the sun it reads higher

Rob's picture
There was also a puddle that had a funny layer of cold hard stuff on the surface although I guess you don't see that when you only ride in Sydney in the middle of the day.

That did make me laugh Eye-wink

P.S. Just to prove I'm not soft, this 'cold hard stuff'... did it look anything like this?

ps's picture

similar but a bit more translucent. Like this really
Bruce Ridge Puddle
The car also had a smattering of frost
Cold morning at Bruce Ridge

This is the ride that only shows temp data for the first 20 minutes although the 0.0 data is in the file the whole way through.

Its so hard to get good web developers!

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