# Data downloading

**URL:** <https://community.purpleair.com/t/data-downloading/8566>\
**Category:** Data\
**Created:** [May 5, 2024, 11:31am UTC](https://community.purpleair.com/t/data-downloading/8566 "2024-05-05T11:31:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Salman\_Alam](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/salman_alam/32/4350_2.png) [@Salman\_Alam](https://community.purpleair.com/u/Salman_Alam)\
**Post date:** [May 5, 2024, 11:31am UTC](https://community.purpleair.com/t/data-downloading/8566/1 "2024-05-05T11:31:50Z")

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how to download the missed data if you have let say crossed or missed let say 20 or 30 days data and now you want to download an averaging data period of 1 hour (which only downloads 14 days ) back dates data. what about the required data exceeding beyond 14 days in back dates? how to download them?

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**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\
**Post date:** [May 17, 2024, 10:53pm UTC](https://community.purpleair.com/t/data-downloading/8566/2 "2024-05-17T22:53:59Z")

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These limits are only in place for the map graph. The API doesn’t have these limitations, so you can get the data that way.

Here are a couple of great places to start:

- [About the PurpleAir API](https://community.purpleair.com/t/api-landing-page/7145)
- [PurpleAir Data Download Tool](https://community.purpleair.com/t/purpleair-data-download-tool/3787)

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**Author:** ![Alejandro\_Piracoca](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/alejandro_piracoca/32/4765_2.png) [@Alejandro\_Piracoca](https://community.purpleair.com/u/Alejandro_Piracoca)\
**Post date:** [June 13, 2024, 6:26pm UTC](https://community.purpleair.com/t/data-downloading/8566/3 "2024-06-13T18:26:41Z")

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Can I download data from previous months from the map website?

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<div class="post-metadata">

**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\
**Post date:** [October 11, 2024, 11:03pm UTC](https://community.purpleair.com/t/data-downloading/8566/4 "2024-10-11T23:03:45Z")

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You can, but with limitations on the resolution of the data. You can download the data that appears on the map graph, and that data is limited by resolution (the averaging period of the data). I’ll share the full limit list below.

If you want to download high-resolution data from any time period, you can do so using the API. If you’re not familiar with our API, you can get started with this article: [About the PurpleAir API](https://community.purpleair.com/t/about-the-purpleair-api/7145)

## Map Graph Limits

- 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

Here’s an example of what the list above means: If you set the “Averaging period” to “10-minute” in the map configuration menu, the graph datapoints will be 10 minutes apart, and the graph will show the last 3 days of data.