Thank you - the example you gave showed me what I needed to do, and I was 
able to extend it to apply to my actual use case. Along the way, I finally 
taught myself how to fully use Cheetah3, so that was doubly useful. 

On Saturday, December 4, 2021 at 2:30:43 PM UTC-8 [email protected] wrote:

> Thank you! I'll be trying this as soon as possible and report back. 
>
> On Saturday, December 4, 2021 at 1:41:18 PM UTC-8 Tom Keffer wrote:
>
>> That should be possible. Try (NOT TESTED) something like
>>
>>     <p>Today's minimum temperature was $day.outTemp.min at 
>> $day.outTemp.mintime.</p>
>>     <p>The humidity at that time was 
>> $current(timestamp=$day.outTemp.mintime.raw, max_delta=600).outHumidity</p>
>>    
>> This works because $current can take a timestamp, which in this case, we 
>> set to the time of the temperature minimum. It can also take a "max_delta", 
>> which sets how far from the timestamp we are willing to accept a record (10 
>> minutes in this case).
>>
>> See the documentation for the tag $current 
>> <http://www.weewx.com/docs/customizing.htm#Time_period_$current> for 
>> details.
>>  
>>
>> On Sat, Dec 4, 2021 at 1:07 PM [email protected] <[email protected]> wrote:
>>
>>> Hi, everyone -
>>>
>>> I'm needing to do something that may sound odd. Let's say I want to know 
>>> the humidity that existed at the time closest to the minimum and also 
>>> maximum temperature of the day. For example, if the minimum temperature of 
>>> the day was 10, at 0915, then I want to get the humidity at that time (or 
>>> the closest time to 0915 that a humidity reading was taken.)
>>>
>>> Assume I want the same for the weekly min/max temperature, the monthly, 
>>> and the yearly. So, I need to really get the min/max value for a field, and 
>>> the time the field was added, and retrieve other information that was saved 
>>> near that time.
>>>
>>> Is there a straightforward way to obtain this?
>>>
>>> Thanks! 
>>>
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>>> .
>>>
>>

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