This report describes the typical weather at the Pulkovo Airport (Saint Petersburg, Russian Federation) weather station over the course of an average June. It is based on the historical records from 2006 to 2012. Earlier records are either unavailable or unreliable.
Saint Petersburg has a humid continental climate with warm summers and no dry season. The area within 25 mi of this station is covered by forests (54%), croplands (21%), oceans and seas (14%), and built-up areas (8%).
The month of June is characterized by rising daily high temperatures, with daily highs increasing from 65°F to 72°F over the course of the month, exceeding 80°F or dropping below 58°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 18:18 hours of daylight; the longest day is June 18 with 18:51 hours of daylight.
The earliest sunrise is at 4:34am on June 15; the latest sunset is at 11:27pm on June 26; the latest sunrise is at 4:48am on June 1; the earliest sunset is at 11:06pm on June 1.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover is 94% (mostly cloudy) and does not vary substantially over the course of the month.
On June 15, a representative day, the sky is clear or mostly clear 1% of the time, partly cloudy 4% of the time, and mostly cloudy or overcast 45% of the time.
The average probability that some form of precipitation will be observed in a given day is 53%, with little variation over the course of the month.
Throughout June, the most common forms of precipitation are light rain and thunderstorms.
Light rain is the most severe precipitation observed during 83% of those days with precipitation. It is most likely around June 1, when it is observed during 46% of all days.
Thunderstorms are the most severe precipitation observed during 13% of those days with precipitation. They are most likely around June 29, when it is observed during 9% 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 45% (comfortable) to 93% (very humid) over the course of a typical June, rarely dropping below 32% (comfortable) and reaching as high as 98% (very humid).
The air is driest around June 1, at which time the relative humidity drops below 51% (mildly humid) three days out of four; it is most humid around June 21, rising above 91% (very 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 58°F (comfortable) and is rarely below 31°F (dry) or above 63°F (mildy humid).
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 1 mph to 9 mph (calm to gentle breeze), rarely exceeding 16 mph (moderate breeze).
The highest average wind speed of 6 mph (light breeze) occurs around June 11, at which time the average daily maximum wind speed is 9 mph (gentle breeze).
The lowest average wind speed of 5 mph (light breeze) occurs around June 30, at which time the average daily maximum wind speed is 7 mph (light breeze).