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Location: Live:Downtown Phoenix, AZ/Work:Greater Los Angeles, CA
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Quote:
Originally Posted by Junter
But the high in Phoenix, Az is not 24.9°C/76.9F?
27.2°C would be 2.3° above the entire March average and it's only the 1st half of March.
I am seeing that all of next days have predicted highs in Phoenix in the 32-36°C. Wooow! It can be one of the warmest March months recorded there?
I use averages from 2000-2010 that I calculated using the same formula everyone else does, averaging 29 day stretches to one day (i.e. March 1st to March 29th would be for March 15th). Mainly because our low temps have gotten increasingly higher. Using 2000-2010 data, we have a normal high of 78°F/25.6°C and a normal low of 53°F/11.7°C today. And using 2000-2010 data, our normal high for the entire month of March is 78.10°F/25.61°C and our normal low for the entire month of March is 53.74°F/12.08°C
Last edited by FirebirdCamaro1220; 03-12-2017 at 02:04 PM..
Only 41°F/5°C? Must have been a cold snap in the east, looking back, our high that day was 78°F/25.6°C which was around normal (79°F/26.1°C is our avg high Mar 21st)
Wow. March snow in the Pee Dee River basin of South Carolina. Incredibly rare. Wilmington looks like it's getting it too.
Currently 50 F here, and expected to stay at that throughout the day.
A low of 27 F is now showing up in my 10 day forecast. Incredible!
Athens, GA got 9" of snow on March 24, 1983; 3" of snow on March 13, 1993; and 7" of snow on March 1, 2009. Snow isn't common in the South in March, but it's not as rare as people think either.
Interesting, but 10 measurements may not be enough to confidently estimate the mean.
In order to have confidence in your estimate of the mean you need to know what kind of probability distribution you're dealing with and have some estimate of the variance, e.g. standard deviation. For example if the temperature follows the normal distribution and the standard deviation is 5°C the you need at least 20 measurements to have 95% confidence in your estimate.
Alternatively based on the 10 measurements you've provided the 95% confidence interval for the mean is from 22.3°C to 29.7°C, again assuming a normal distribution.
Of course temperatures in most places do not follow a normal distribution so things are even more messy than that.
Edit: should say 11 measurements. Same logic applies.
Last edited by Ed's Mountain; 03-12-2017 at 04:02 PM..
Reason: Addendum.
Arctic in place in Northeast for incoming Blizzard in 2 days
Feels like 30s in Georgia and South Carolina mid afternoon mid March with snow on ground in some areas.
Wonder if the snow that fell will survive to tomorrow morning when the new snow maps come out. Would of liked to see the Southeast areas covered
With Temps at freezing and cloudy the snow melted. Even in shade. By the time the clouds broke all the snow was gone. Had the high not been recorded midnight in SC and wilmington they would have broken their lowest max record.
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