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Old 08-23-2013, 12:14 PM
 
Location: Vernon, British Columbia
3,018 posts, read 2,536,056 times
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Factors that increase diurnal temperature range:
1) High elevation
2) Low humidity
3) Valley bottom (relative low spot)
4) No wind
5) Lots of daylight and lots of dark (not too close to poles during the summer or winter).
6) Faulty instruments
7) Old shelter (Stevenson Screen)
It is interesting how comparing two spots of the same elevation and lattitude on either side of the Rockies reveals that the summer diurnal temperature variation is much greater west of the Rockies. This is partly why 97% of British Columbia is non-arable land (the growing season is too short due to cold nights).

There is almost no wind for large portions of the west. eg. The Blue River airport has an average annual wind speed of only 2.58 km/h 10 m above the ground. In addition almost all weather stations are in valley bottoms, and the air is drier too.

The average August high in Lumby, BC, is 27.4 and the average low is 7.4 (81.3 and 45.3 if we are talking Fahrenheit). Just to the south of this village and just north of the Washington State border is Beaverdell where the August temperatures are even more extreme (25.8 in the day and 5.3 at night).
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Old 09-10-2013, 06:27 PM
 
Location: Vernon, British Columbia
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0 C this morning, and currently 30 C at 4 pm this afternoon... Tatlayoko Lake - Past 24 Hour Conditions - Environment Canada
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Old 09-11-2013, 07:45 AM
 
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Wow. It'd be interesting to experience.

Also, why does Lhasa get a high daily range for it's rainy days? I mean, a 11.7 C range and 20 precip days...I know because of the elevation but still impressive.
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Old 09-11-2013, 08:39 AM
 
Location: London
778 posts, read 846,131 times
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Quote:
Originally Posted by Joe90 View Post
Great photos, looks great.


Marijuana does best in climates with a strong Autumn diurnal range. Hayfork sounds as though it has those requirements.
Oh in that case Marijuana climates suit me best. I envy these locations for their huge diurnal ranges!
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Old 09-11-2013, 09:17 AM
 
Location: Perth, Western Australia
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The highest diurnal range in Australia was record in Eyre, Western Australia. 6.8C-44.2C on March 5 2008. This station is notorious for wide diurnal ranges and very low minima despite oddly being very near to the coast.
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Old 09-14-2013, 06:08 AM
 
Location: London
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Quote:
Originally Posted by sulkiercupid View Post
The highest diurnal range in Australia was record in Eyre, Western Australia. 6.8C-44.2C on March 5 2008. This station is notorious for wide diurnal ranges and very low minima despite oddly being very near to the coast.
Sounds perfect to me. It would be great to experience a subzero low followed by a 40+ high on the same day.
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Old 09-14-2013, 06:42 AM
 
Location: North West Northern Ireland.
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Nohigher than 2c. Goodness no.
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Old 02-18-2016, 06:11 PM
 
Location: Sydney, Australia
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Myrtleford, VIC would have probably experienced 30C+ days followed by nights around 5C.
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