![]() From this year, we give you a completely different past weather data - reanalysis of the ECMWF - #1 global weather forecast model. More: before 2021, the history used to be old GFS27 global model forecasts. In Windy.app weather history is the weather that occurred on a spot in the past. This data is taken from the forecast for the spot and is available since 2012 - for the last 9 years.Īnd, since it is 2021 now, we have added the year 2020! What is historical weather data in Windy.app? Somewhere, like in California, the best waves. Somewhere, like in Tarifa, the wind is always blowing, so it is one of the best places in the world for kitesurfing. Yes, in the southern regions may snow, but usually, it is very hot there, and in the north - cold. In the same regions of the earth at the same time periods, it is approximately the same. In these places, historical data can sometimes be used as a rude forecast.Īnd in general, the weather is cyclic. But in other places (in Japan in winter, in Southern Europe in summer, etc.) the weather is pretty constant from year to year. In Iceland, for example, you can get only a primal understanding of the conditions of wind and precipitation. Important: remember that in some regions the weather changes frequently and significantly. So you need to know the weather history for the same thing - for better weather forecasting. Knowing weather history can help you with these questions. Thanks to it, you can compare the actual weather on any date to the normal weather in past years. I'd like to go sailing in an unfamiliar area: what is the wind pattern there?.I'm a future weather expert, a student looking for historical weather reports, or global average temperature history.(It is easy because you have the forecast.) But what about the distant future: 5, 7, 10, 14 days or even more? There is an outdoor activity I want to do in the next 1-3 days.I am planning a trip: what is the weather usually like at that place?.What was the wind strength on August 8, 2020, at my location? Or on another particular day?.However, there is a problem: these records are not evenly distributed around the globe. There are a lot of sources: weather stations, satellites, weather balloons, ships, aircraft and other, datasets of enormous size. The weather is monitored all over the world. ![]() Sometimes we need to look at the real weather at some particular point. Why do I need to use past weather data?įorecast and reality often don't match. If the wind is unstable, it is more difficult to predict the weather. ![]() The conclusion: it will continue to blow in the same way. The purpose of data collection is the same as any other statistical information: to better understand the current weather situation and make better forecasts.įor example, by comparing the wind speed in a particular area over the past few years, we can identify patterns like "the wind blows mainly in the same direction and with the same speed". The history of the weather is statistical data on the state of the atmosphere and the ocean, collected on the basis of regular meteorological observations made from hour to hour, day to day, month to month, year to year - continuously. ![]() Learn what is weather history, why do you need it for weather forecasting and where to get it in Windy.app. ![]()
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