When does it usually become ours?

Of all the seasons of the year, spring is perhaps the most awaited of many. The sun is warming and the days are getting longer.

There are of course many definitions for when spring arrived. The slightly breezy meteorological definition is based solely on daily mean temperature. If the average temperature is above 0 degrees seven days on the rake, it is ours. However, there is an important prerequisite, and that is, the first possible date of spring arrival is set for February 15. This is done so as to avoid that a shorter mild period during the winter should be counted as spring. The weather year turns in southern Sweden around the end of January - February, which means that from mid-February there is a clear trend in the warmer direction. Therefore, there is a first possible date for spring.

Only a very small part of the country usually get spring already in February, so it is only seriously in March and April that spring takes the step north across the country. And it varies a lot from year to year. Sometimes spring can be both a month early and a month late.

- Seven days on the rake where every single day must have an average temperature above 0 degrees.
- The earliest possible date for spring arrival is February 15th.
- When the conditions are met, the date of the first of the seven days is counted as the arrival of spring.

The break date of February 15 also means that if there is never a meteorological winter (five days on the rake below 0 degrees), the autumn can not last longer than February 14. If the temperature around February 15 when commuting around the average temperature of 0 degrees, no defined season prevails until you get seven days on the rake with more than 0 degrees. Or, winter may come even after February 15 if you get five days on the rake below 0 degrees.