The highest temp I have seen in Shoshone was 109 F. in the shade.

When I lived in the western part of the state, I recorded 114 F. in the shade. Not far from the state record of 118 F.

Trachys and sabals seem to do ok in the Southwest....temps 120 F. or higher, I think the should do ok almost anywhere?

You had 43C which is very hot and can happen much more often than where I live. But in our area which you dont really get is the humid heat. Say if it was 30C the humid tempurature would be 42C even our daily summer tempurature 26C with a humid temp of 38C.The humid tempurature for 41C was 60C. It was very humid that day. Resulted in 52 deaths for old people, just so sad

Where you lived before you had 45C which can kill conifers (depends on speices) Or other plants like ferns, hollys, etc...
But DesertZone since you have cacti or succulents they should be fine in severe heatwaves. 🙂

About my area again. At that time at 41C heres what happened in Trenton Spruces, pines, cedars, junipers were half dead
Most trees like birch had leaves that look like if it was autumn. Maples, poplars, hollys were autumn looking too. Yucca filamentosas were fine but some sun burn. They called it the autumn day in july. 41C followed with 39C 40C 38C 37C Caused a severe drought. Some things were dead like ferns and banana plants.Everything was bad looking. Thanks for the temperaturs desertzone :DIn florida we had a temperature Of 46C and like did the same thing 🙁 Killed things!

Hottest temp here ever was 106F. Usually it is only above 100F maybe 8-10 days. It's quite humid though.

Hottest here in Central KS was 48.3C , 119F in 1936

Back in the "Dust Bowl Days"

Last year seemed to avg. low 90's Great weather for outdoor planted Phoenix's,
Now if I can just get them through the winters...... 8)

Boise's hottest day ever, at the airport site, was 111 F (44 C) in 1960. In recent years I have seen airport readings as high as 110... The hottest my thermometer has seen in 10 years was 108, it has seen that about six or seven times, including three days in a row, four? years ago. Dry, too, like I remember when I was a kid. Boise is becoming an urban humidity island I think, two years ago the summer felt like an Ohio summer as humid as it was. Surprisingly these heat waves don't kill a lot of the large trees here, mostly smaller less established trees and shrubs. I have only seen cold kill trees here; many fruit trees in town were zapped by the Dec. 1990 Arctic blast when lows reached -25 F (-32 C) two days before Christmas... but what shocked me looking back, very few other trees were killed, even some Southern species like sweet gum. Heck I even remember as a teenager seeing a eight or ten foot tall monkey puzzle tree in someone's back yard in, I think 1993.

We have the odd day as warm as 31 C here but seldom more than 1 or 2 per year.

As a kid when I was in Peace River the temperature would frequently exceed 90 F in the summer when a westerly breeze would seal the heat in the valley. When the local forests were knocked down to accomodate farming in the late 1960s this anomaly ended.

Allen

Hmmm... not sure what the hottest temps have been in Kelowna. Anyone know where to check this?

Hi Jay,

Based between 1971 to 2000 the warmest temp recorded was 39.5 C. I would believe that it has been warmer than that before 1971 but I'm not sure.

Here's a link to the Canadian Weather Office

http://www.climate.weatheroffice.ec.gc.ca/climate_normals/results_e.html?Province=BC%20%20&StationName=&SearchType=&LocateBy=Province&Proximity=25&ProximityFrom=City&StationNumber=&IDType=MSC&CityName=&ParkName=&LatitudeDegrees=&LatitudeMinutes=&LongitudeDegrees=&LongitudeMinutes=&NormalsClass=A&SelNormals=&StnId=1006&

Regards
Phil

Thanks Phil. 🙂

Kelowna city proper all time high temp 40.8c - 105.4f ,Osoyoos B.C. all time high 43c - 109.4f. Osoyoos B.C. holds the national distinction for highest summertime temperatures. They claim to be the hottest place in Canada! I can see why. 😀
John 8)

In July 1966 our island recorded a max. temp. of 38 C. or 100.1 F. Joe