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I have always like studing climate since I was in grade school.... And I like reading the topic "Looking Back at the Great US Freezes"

What I learned is that freezes in subtropical climates come in cycles... I was esps interested in freeze that occured in Florida as a kid and it effect on tropicals.... I was unsure why these cycle occured but that they did and mostly in groups of 3 or 4 years.....

As I got more into climate I always saw these cycles come with decrease in solar intensity or activity..... For me the sun and oceans are what really controls the climate on earth (and also the hole in the ozone..... which I feel is control by solor activity and the solor winds)

The last warm up started in the late 20's and ended sometime in the 50's with decrease solor activity resulting in the freezes of 1957- 1958 until the early 60's and again in 1978 and the freezes of the 80's then solor activity started increaseing.....in the mid 80's..... resulting to all the talk of GLOBAL WARMING and lack of bad freezes...

Now the real bad news, it looks as if we are entering into a decrease peroid in solor activity.... which should start another cycle of freezes to start in the next 5 years and go for the next 10 to 15 or more years...

Phoenix Area, Arizona USA

Low Desert...... Zone 9b

Jan ave 66 high and 40 low

July ave 105 high and 80 low

About 4 to 8 frost a year...ave yearly min temp about 27F

About 8 inches of rain a year.

Low Desert

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Cool Mtn climate at 7,000'

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