This report describes the typical weather at the Šiauliai International Airport (Šiauliai, Lithuania) weather station over the course of an average year. It is based on the historical records from 2004 to 2012. Earlier records are either unavailable or unreliable.
Šiauliai has a humid continental climate with warm summers and no dry season. The area within 25 mi of this station is covered by croplands (66%), forests (31%), and grasslands (3%).
Over the course of a year, the temperature typically varies from 16Â°F to 75Â°F and is rarely below -2Â°F or above 83Â°F.
The warm season lasts from May 25 to September 6 with an average daily high temperature above 65Â°F. The hottest day of the year is July 17, with an average high of 75Â°F and low of 57Â°F.
The cold season lasts from December 7 to March 9 with an average daily high temperature below 35Â°F. The coldest day of the year is February 2, with an average low of 16Â°F and high of 26Â°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 6:59 hours of daylight; the longest day is June 20 with 17:38 hours of daylight.
The earliest sunrise is at 4:39am on June 20 and the latest sunset is at 10:17pm on June 21. The latest sunrise is at 8:58am on December 30 and the earliest sunset is at 3:51pm on December 12.
Daylight savings time (DST) is observed in this location during 2012, starting in the spring on March 25 and ending in the fall on October 28.
The median cloud cover ranges from 81% (mostly cloudy) to 99% (overcast). The sky is cloudiest on December 8 and clearest on August 11. The clearer part of the year begins around April 9. The cloudier part of the year begins around October 19.
On August 11, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 21% of the time, and overcast or mostly cloudy 39% of the time.
On December 8, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 86% of the time, and clear or mostly clear 3% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around December 9, occurring in 77% of days. Precipitation is least likely around May 11, occurring in 41% of days.
Over the entire year, the most common forms of precipitation are light rain, moderate rain, light snow, and moderate snow.
Light rain is the most severe precipitation observed during 30% of those days with precipitation. It is most likely around November 5, when it is observed during 27% of all days.
Moderate rain is the most severe precipitation observed during 22% of those days with precipitation. It is most likely around September 11, when it is observed during 21% of all days.
Light snow is the most severe precipitation observed during 17% of those days with precipitation. It is most likely around January 23, when it is observed during 35% of all days.
Moderate snow is the most severe precipitation observed during 12% of those days with precipitation. It is most likely around February 18, when it is observed during 20% of all days.
During the warm season, which lasts from May 25 to September 6, there is a 53% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light rain (37% of days with precipitation have at worst light rain), moderate rain (33%), thunderstorms (22%), and heavy rain (7%).
During the cold season, which lasts from December 7 to March 9, there is a 73% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light snow (40% of days with precipitation have at worst light snow), moderate snow (24%), light rain (15%), and heavy snow (10%).
The likelihood of snow falling is highest around January 22, occurring in 61% of days. The season in which it is relatively likely for snow to fall spans from November 13 to April 5.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 38% (comfortable) to 99% (very humid) over the course of the year, rarely dropping below 24% (dry) and reaching as high as 100% (very humid).
The air is driest around April 28, at which time the relative humidity drops below 45% (comfortable) three days out of four; it is most humid around November 15, exceeding 100% (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 year, the dew point typically varies from 14Â°F (dry) to 62Â°F (mildy humid) and is rarely below -5Â°F (dry) or above 68Â°F (muggy).
The time of the year between May 19 and October 4 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of the year typical wind speeds vary from 2 mph to 17 mph (light air to moderate breeze), rarely exceeding 23 mph (fresh breeze).
The highest average wind speed of 12 mph (gentle breeze) occurs around January 10, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 7 mph (light breeze) occurs around July 30, at which time the average daily maximum wind speed is 12 mph (moderate breeze).