Hello Sebster,
Something to keep in mind, the temperature reflects the operating conditions for the PurpleAir device. Generalized correction factors are applied to temperature and humidity data presented on the map, but this correction will not cover all circumstances.
The map has history data period limits. They are as follows:
Real-time: 2 days
10-minute : 3 days
30-minute: 7 days
1-hour: 14 days
6-hour: 90 days
1-day: 1 year
1-week: 5 years
1-month: 20 years
1-year: 100 years
You can learn more about how to use the map here: How to Use the Map Graph
If you want to query outside those limits, I recommend using the PurpleAir Data Download Tool or our API.
Learn more about our tool here: PurpleAir Download Tool
More information about our API can be found here: PurpleAir API
Details on making API calls are here: Making API Calls with the PurpleAir API