Short-term effects. When a person smokes marijuana, THC quickly passes from the lungs into the bloodstream. The blood carries the chemical to the brain and other organs throughout the body. The body absorbs THC more slowly when the person eats or drinks it. In that case, the user generally feels the effects after 30 minutes to 1 hour.
As the season progresses, the earth's axis increases it's tilt towards the sun in preparation for summer. When spring ends in the northern hemisphere, we have the summer solstice ie the beginning of summer, which is the longest day of the year and when the earth's axis is tilted towards the sun.
Climate is what we expect, and weather is what we get. Weather is what we get because it's how the atmosphere is behaving now, or will behave in the short-term (in the hours and days ahead). On the other hand, climate tells us how the atmosphere tends to behave over longer periods of time (months, seasons, and years). It does this based on weather's day-to-day behavior over a standard period of 30 years. This is why climate is described as what we expect in the above quote.