How to average meteorological data over the years?

Share some useful meteorological data websites:

1 、/cn/？ national climate center

2、? And energy big data platform.

http://www.ecmwf.int？ european centre for medium range weather forecasts

http://www.noaa.gov？ National Oceanic and Atmospheric Administration

6、http://earth observatory . NASA . gov？ National Aeronautics and Space Administration Earth Observation Center

7、 http://www.weather.gov？ NOAA National Weather Forecast Center

http://www.emetsoc.org？ European meteorological association

The query steps are also very simple:

Step 1: Enter geographic information. You can choose single point data or regional average data.

Step 2: Select a data source

Step 3: Enter the start and end time of the download you want to query. You can choose 40 years of history and 7 days in the future.

Step 4: Select the meteorological data to be downloaded.

Step 5: If you need to query more data, you can search for attributes in more attributes.