The Increasing Daylight and Solar Intensity in February
February marks a noticeable shift as days begin to lengthen and the sun’s intensity increases. This change isn’t uniform throughout the month; the rate of daylight gain accelerates as February progresses, with each week adding more daylight than the last.
Daylight Acceleration
The increase in daylight hours is a welcome sign after the winter solstice. The exact amount of daylight gained varies by latitude, but the trend is consistent: longer days.This is due to the Earth’s tilt and its orbit around the sun. https://www.timeanddate.com/sun/ provides specific sunrise and sunset times for any location.
The Sun is Getting Stronger
The sensation of warmer sunlight is also a real phenomenon. As the Earth’s tilt brings us closer to the sun, the sun’s rays strike the Earth at a more direct angle. This means more energy is delivered per unit area, resulting in increased warmth. The sun’s intensity is measured by solar irradiance, and it demonstrably increases during this period. https://www.weather.gov/ama/solar explains solar radiation and its effects.
This increased solar radiation can be felt as warmer temperatures on surfaces like car interiors and skin, even if the air temperature remains cool. It’s a clear indication that spring is on its way.
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