How to get yesterday's weather data?

[cbhiii]

Hi all,

On my webpage I display the current day's weather information. I also want to show yesterday's high and low temperature. How can I do this?

There does not seem to be any weather information for a variable such as "day2..." which would show this. Only "last24h" or "day1".

Thanks for any help with this!

[sevenless]

There are a few "sequential <time frame>" variables that you can use to retrieve this information.

For instance, for yesterday's high temperature you would use [seqday1_th0_tempmax_c@2] to retrieve yesterday's high temperature in Celsius. There's no sequential output in Fahrenheit (or any other non-metric measure for other sensors), so you'll need to use the {math} code to convert if you prefer that scale for your data.

Likewise for the minimum temperature use the above string but swap 'tempmin' for 'tempmax'.

There is a bit of information in the manual about parsing the data and doing math, under the section on Displaying Weather Data (section 3.4 in the old v3.1 manual.)

I don't think there's any discussion of the seqXXX variables, but if you check your all_sensor output you'll see a bunch of them for several time frames. The seqday1 output stores the last 30 days of weather data, as long strings separated by the underscore character.

[cbhiii]

Thanks for the tip. I didn't realize you could sample out part of those strings. I will try it and use the code below to convert from C to F. Thanks.

<script type="text/javascript">
var tc = "[seqday1_th0_tempmax_c@2]";
tf = Math.round(((1.8*tc)+32)*10)/10;
document.write(tf);
</script>