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I would like to see how big is the correlation between weather and visits to our website, but I can't seem to find any database that has option of downloading chosen datasets. Any ideas?

To be specific I am talking about Poland / Europe.

  • 1
    This data request seems to broad. What specific weather parameters are you looking for? How will it be used in your BI software? – Kermit Jul 8 '13 at 13:26
  • Temperature and rain. I wanted to see how big is the possitive correlation between above average temperature/rain and visits to our website (or at least try to do that). – Matt Jul 9 '13 at 8:28
  • Could you please update your question accordingly to make it clear what exactly you are looking for? – Patrick Hoefler Jul 10 '13 at 17:58
  • Also, have you already looked at opendata.stackexchange.com/q/365/70? – Patrick Hoefler Jul 10 '13 at 18:45
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Two resources:

  1. https://developer.forecast.io/ (free for low use, then paid after that)
  2. http://www.ncdc.noaa.gov/cdo-web/#t=secondTabLink

The NOAA data is used by a developer in Chicago to explore the correlation between weather and crime.

  • welcome on opendata stack exchange. I have moved your link to your answer directly. You can edit, enrich your answer any time. It is also appreciated when user disclose when they are developers of a tool or application they promote here. – magdmartin Jul 12 '13 at 14:30
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Wunderground has an API with historical weather (link). You can get 500 free API requests per day, so you have to be patient if you want to go back years. I found for my location a detailed daily history going back to 1997 (high temp, low temp, mean temp, precipitation amount, plus way more).

update: the reason I post this now is that the Wunderground API includes international weather (and not just US).

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I did something similar to Chris Gansen for Portland, OR. I downloaded the crime datasets from Portland's open data portal (www.civicapps.org) and the corresponding weather data from NOAA.

I then created a new CSV dataset from the originals where I added fields for temperature mean, percipitation and snowfall, and posted them for other developers to use:

http://www.opengeocode.org/cude/civicapps/civicapps.crime_incident_data.csv

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