What is the fatest way to get data?

[aidanahram]

I've been playing around with scraping the weather.gov website and using the API and I've noticed that even though the website is a little faster than the API, neither of them have the fastest data available. Looking at a website like: https://wethr.net/market/atlanta, it always has faster data published on a minutely basis. I was wondering how this is possible?

[akrherz]

Note, the source of this minute data is in whole degree Celsius and does not use two minute averaging, so using it to predict a high temperature in Fahrenheit is not for the feint of heart! I am unsure where that website is sourcing the data, but it may be: https://synopticdata.com/

[aidanahram]

Thank you. Is https://synopticdata.com/ the fatest way to get data?
Is there somewhere I can read about 2 minute averaging?

[aidanahram]

Hey where does Iowa Environmental Mesonet get their data from?
For example the DSM products

[akrherz]

This is not on-topic for this API repository. Please followup with me directly akrherz@iastate.edu

[dwhitemv25]

There is information about observation availability on the Updates tab of the documentation website, https://www.weather.gov/documentation/services-web-api.

Upstream Issues/Changes

The following issues are related to upstream sources of the API, and are not an API bug.
Station observations endpoints always show missing (null) 24h max/min temperatures for stations outside the central time zone due to MADIS ingest bug.
Delayed observations
Observations may be delayed up to 20 minutes from MADIS, the upstream source, due to QC processing.

I can also assure you that anyone with "minutely" weather data is pulling it from a model and not from actual observations, e.g., it is synthetic. It is the temperature the model "thinks" it should be for the point, not what it is. Actual observations from a nearby point probably happen once per hour.

[akrherz]

I can also assure you that anyone with "minutely" weather data is pulling it from a model and not from actual observations

This is not correct. The FAA has a stream now of very real-time 1 minute data mostly federal ASOS sites. see https://demos.synopticdata.com/hf-asos-available/index.html