Forecast.io API 提供了您所需的功能。您可以通过坐标以及过去和未来的任何时间进行查询。只要有天气数据源，它就可以在全球范围内使用。
The Forecast.io API provides exactly the functionality you require. You can query by coordinates and any time in the past and future. It's available globally wherever there are weather data sources.
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Forecast.io API 提供了您所需的功能。您可以通过坐标以及过去和未来的任何时间进行查询。只要有天气数据源，它就可以在全球范围内使用。
The Forecast.io API provides exactly the functionality you require. You can query by coordinates and any time in the past and future. It's available globally wherever there are weather data sources.
您可能会在这里找到一些答案：https://stackoverflow.com/questions/507441/best-weather-apis
You might find some answers here: https://stackoverflow.com/questions/507441/best-weather-apis
不确定是否按日期查询，但您可以按 latlong 查询 Wunderground 数据源，请参阅 http: //wiki.wunderground.com/index.php/API_-_XML 了解所有详细信息。
Not sure about querying by date but you can query the Wunderground Data Feed by latlong, see http://wiki.wunderground.com/index.php/API_-_XML for all the details.