When Does Summer Start in Kansas?

Here in Kansas, we start to feel the summer heat as early as May. But when does summer officially start?

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Summer in Kansas officially starts on June 21, the same day as the summer solstice. However, depending on the weather conditions, summer may start earlier or later. For example, if it’s been hot and humid for several weeks leading up to the summer solstice, then summer may be said to have started early. Similarly, if the weather is still cool and spring-like close to the summer solstice, then summer may be said to have started late.

The Scientific Answer

The first day of summer is on June 20 or 21, depending on your location in the world. In Kansas, the summer season begins on June 20. This date is also the start of the astronomical summer season.

The Meteorological Answer

In Kansas, summer starts on June 1, according to the meteorological definition. This is the date when the average temperature of the state reaches 61 degrees Fahrenheit. The weather in Kansas can vary greatly from year to year, but generally, the warmest temperatures are seen in July and August.

The Astronomical Answer

There are two ways to answer this question: the astronomical way and the meteorological way.

The astronomical start to summer is marked by the summer solstice, which falls on June 20th or 21st. This is when the sun is at its highest point in the sky and daylight hours are at their longest.

The meteorological start to summer is typically marked by the start of June, when average temperatures begin to rise. In Kansas, this usually means that temperatures will be consistently above 70 degrees Fahrenheit.


Kansas summer typically starts in late May and lasts through early September. However, temperatures and conditions can vary greatly from year to year. For example, in some years the state may experience a heat wave in early May, while in other years the mercury may not reach 80 degrees Fahrenheit until June. To get an accurate idea of when summer will start in any given year, it’s best to check the forecast closer to the date.

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