This report describes the typical weather at the Paso Robles Municipal Airport (Paso Robles, California, United States) weather station over the course of an average June. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Paso Robles, California has a mediterranean climate with dry hot summers and mild winters. The area within 25 mi of this station is covered by grasslands (95%) and forests (2%).
The month of June is characterized by rising daily high temperatures, with daily highs increasing from 83°F to 91°F over the course of the month, exceeding 101°F or dropping below 71°F only one day in ten.
Over the course of June, the length of the day is essentially constant. The shortest day of the month is June 1 with 14:26 hours of daylight; the longest day is June 24 with 14:35 hours of daylight.
The earliest sunrise is at 5:46am on June 15; the latest sunset is at 8:23pm on June 25; the latest sunrise is at 5:50am on June 30; the earliest sunset is at 8:14pm on June 1.
Daylight saving time is observed in 2012 but it neither starts nor ends in June, so the entire month is in daylight time.
The median cloud cover is 4% (clear) and does not vary substantially over the course of the month.
On June 15, a representative day, the sky is clear or mostly clear 75% of the time, partly cloudy 8% of the time, and mostly cloudy or overcast 16% of the time.
The average probability that some form of precipitation will be observed in a given day is 4%, with little variation over the course of the month.
Throughout June, the most common forms of precipitation are light rain, moderate rain, drizzle, and thunderstorms.
Light rain is the most severe precipitation observed during 59% of those days with precipitation. It is most likely around June 2, when it is observed during 3% of all days.
Moderate rain is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around June 1, when it is observed during 1% of all days.
Drizzle is the most severe precipitation observed during 12% of those days with precipitation. It is most likely around June 12, when it is observed during 1% of all days.
Thunderstorms are the most severe precipitation observed during 11% of those days with precipitation. They are most likely around June 1, when it is observed during 1% of all days.
Either snow is exceptionally unlikely to fall at this location in June or this station does not reliably report precipitation types.
The relative humidity typically ranges from 23% (dry) to 89% (very humid) over the course of a typical June, rarely dropping below 12% (very dry) and reaching as high as 100% (very humid).
The air is driest around June 30, at which time the relative humidity drops below 28% (dry) three days out of four; it is most humid around June 1, rising above 84% (humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical June, the dew point typically varies from 39°F (dry) to 52°F (very comfortable) and is rarely below 31°F (dry) or above 57°F (comfortable).
The time of the month between June 1 and June 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of June typical wind speeds vary from 0 mph to 20 mph (calm to fresh breeze), rarely exceeding 24 mph (fresh breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around June 2, at which time the average daily maximum wind speed is 20 mph (fresh breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around June 29, at which time the average daily maximum wind speed is 20 mph (fresh breeze).