How do I create daily statistics for historical weather summaries and climate reports?

When you create a simple historical summary, the weather variables are summarized by their default aggregation method for all time periods in question. For example, the maximum temperature is the maximum temperature for all the selected time intervals. Precipitation is the mean across the same time time intervals.  In many cases, we don’t want the …

I think that I’m seeing bad weather data. What should I do?

Occasionally when reviewing weather data you come across a weather record that simply doesn’t seem right. Perhaps the precipitation is too high based on what you know about the location or perhaps the temperature is too low, and you know because you live there. At other times you may find missing data within your weather …

Energy elements in the Timeline Weather API

The Timeline Weather API includes elements that are designed for use by the solar and wind energy industries. These weather elements include measurements of the solar radiation at the earth’s surface and wind speeds and directions. The elements on this page are available only to certain subscription levels. For more information, please see our pricing …

How to Load Weather Data into Microsoft Excel using a Web Query Data Connection

One of the powerful features of the Visual Crossing Weather Service is the ability to query data via a Web Service or URL.  This ability isn’t only limited to coders but rather can be utilized to import data into most Business Intelligence Systems including Excel.   When you include your data into Excel, you can refresh …

Weather Data Conditions

The Weather APIs include a ‘conditions’ field which represents a summary of the key weather features for a particular weather record (be it daily, hourly or subhourly record). How is the condition field calculated? The weather conditions field is created by examining the weather that will be or was experienced during that weather record. If …

How to include sunrise, sunset, moon phase, moonrise and moonset data into your API requests

In addition to providing historical weather observations and weather forecast data, the Weather API also provides astronomical information. This astronomical information includes sunset, sunrise and moon phase data. Why is astronomical information useful? Sunset, sunrise and moon information goes hand-in-hand with weather data in many use cases. The information can help answer some basic questions: …