Tom - FWIW aeons ago I went the other way on my site and changed the links 
to the plots to say past 24 hrs, past 7 days, past 30 days and past year 
rather than the standard nomenclature of yesterday, week and month

Andrew


On Tuesday, 3 October 2017 23:29:30 UTC+3, Tom Keffer wrote:

> There is an inconsistency there.
>
> As Andrew says, $week.rain.sum returns the "rain since Sunday."
>
> By contrast, the plots show aggregation "over seven days," the start of 
> which is almost arbitrary. It's set by whatever is the current day. That 
> should probably be changed to aggregations over the week starting on Sunday.
>
> I've started issue #279 <https://github.com/weewx/weewx/issues/279> to 
> track this.
>
> -tk
>
> On Tue, Oct 3, 2017 at 10:05 AM, Tom McCullough <[email protected] 
> <javascript:>> wrote:
>
>> Thanks Andrew, that works much better. Now matches the chart, which shows 
>> a 7-day week anyway.
>> -Tom
>>
>> On Tuesday, October 3, 2017 at 10:47:50 AM UTC-5, Andrew Milner wrote:
>>>
>>> a week is a week not 7 days
>>>
>>> the start of the week is set by week_start to a day of the week where 0 
>>> = sunday, 1=Monday, 2=Tuesday etc
>>>
>>> if you want the last 7 days then use $span($day_delta=7).rain.sum
>>>
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