[Bldg-sim] calculating the mean monthly outdoor temp

Joe Huang joe at drawbdl.com
Thu Nov 27 21:07:55 PST 2008

The cited method sounds like a carry-over from when stations reported only 
max/min temperatures.
If hourly data is available, why wouldn't you just calculate the mean of all 
the temperatures ?

Joe Huang
White Box Technologies

----- Original Message ----- 
From: "Chris Yates" <Chris at zed-uk.com>
To: "Building Simulation" <bldg-sim at lists.onebuilding.org>
Sent: Thursday, November 27, 2008 1:58 PM
Subject: [Bldg-sim] calculating the mean monthly outdoor temp

> For the purpose of acceptability limits, can anybody cite any guidance on 
> calculating the mean monthly outdoor temperature? I've read ASHRAE 55 and 
> it states: "mean monthly outdoor temperature is the arithmetic average of 
> the mean daily minimum and the mean daily maximum outdoor (dry bulb) 
> temperature for the month in question."
> Thanks
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