Average Weather in Rzeszów Poland

In Rzeszów, the summers are comfortable and partly cloudy and the winters are freezing, dry, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 23°F to 76°F and is rarely below 4°F or above 87°F.

The warm season lasts for 3.6 months, from May 21 to September 10, with an average daily high temperature above 67°F. The hottest day of the year is July 26, with an average high of 76°F and low of 56°F.

The cold season lasts for 3.6 months, from November 21 to March 9, with an average daily high temperature below 41°F. The coldest day of the year is January 21, with an average low of 23°F and high of 33°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Rzeszów, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Rzeszów begins around April 25 and lasts for 5.5 months, ending around October 10. On August 11, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 62% of the time, and overcast or mostly cloudy 38% of the time.

The cloudier part of the year begins around October 10 and lasts for 6.5 months, ending around April 25. On December 1, the cloudiest day of the year, the sky is overcast or mostly cloudy 68% of the time, and clear, mostly clear, or partly cloudy 32% of the time.

Cloud Cover

The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Rzeszów varies throughout the year.

The wetter season lasts 4.3 months, from May 2 to September 12, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 36% on June 30.

The drier season lasts 7.7 months, from September 12 to May 2. The smallest chance of a wet day is 15% on January 14.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 36% on June 30.

Daily Chance of Precipitation

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Rzeszów experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 11 months, from February 10 to January 14, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 13, with an average total accumulation of 2.8 inches.

The rainless period of the year lasts for 3.9 weeks, from January 14 to February 10. The least rain falls around January 30, with an average total accumulation of 0.5 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Rzeszów experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 4.5 months, from November 6 to March 20, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 31, with an average total liquid-equivalent accumulation of 0.3 inches.

The snowless period of the year lasts for 7.5 months, from March 20 to November 6. The least snow falls around July 21, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Rzeszów varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 4 minutes of daylight; the longest day is June 21, with 16 hours, 23 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 4:21 AM on June 16, and the latest sunrise is 3 hours, 9 minutes later at 7:30 AM on December 31. The earliest sunset is at 3:29 PM on December 12, and the latest sunset is 5 hours, 16 minutes later at 8:45 PM on June 25.

Daylight saving time (DST) is observed in Rzeszów during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.

Sunrise & Sunset with Twilight and Daylight Saving Time

The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Rzeszów, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 4% of 4% throughout.

Humidity Comfort Levels

The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Rzeszów experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.6 months, from October 20 to April 8, with average wind speeds of more than 5.2 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 6.4 miles per hour.

The calmer time of year lasts for 6.4 months, from April 8 to October 20. The calmest day of the year is August 10, with an average hourly wind speed of 4.1 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Rzeszów varies throughout the year.

The wind is most often from the south for 2.7 weeks, from April 25 to May 14 and for 1.5 months, from October 14 to November 29, with a peak percentage of 39% on November 12. The wind is most often from the west for 5.0 months, from May 14 to October 14 and for 4.9 months, from November 29 to April 25, with a peak percentage of 44% on July 7.

Wind Direction

The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.7 months, from April 29 to August 21, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest day of the year is July 1, with an average of 6.4 kWh.

The darker period of the year lasts for 3.6 months, from October 27 to February 17, with an average daily incident shortwave energy per square meter below 1.9 kWh. The darkest day of the year is December 22, with an average of 0.8 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Rzeszów are 50.041 deg latitude, 21.999 deg longitude, and 686 ft elevation.

The topography within 2 miles of Rzeszów contains only modest variations in elevation, with a maximum elevation change of 213 feet and an average elevation above sea level of 687 feet. Within 10 miles contains only modest variations in elevation (768 feet). Within 50 miles contains significant variations in elevation (2,595 feet).

The area within 2 miles of Rzeszów is covered by artificial surfaces (83%) and cropland (16%), within 10 miles by cropland (62%) and trees (18%), and within 50 miles by cropland (50%) and trees (37%).

Data Sources

This report illustrates the typical weather in Rzeszów, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Rzeszów.

For each station, the records are corrected for the elevation difference between that station and Rzeszów according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Rzeszów is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Rzeszów and a given station.

The stations contributing to this reconstruction are: Rzeszów–Jasionka Airport (97%, 8 kilometers, north); Lviv International Airport (1.2%, 143 kilometers, east); John Paul II International Airport Kraków–Balice (1.1%, 158 kilometers, west); and Poprad-Tatry Airport (0.9%, 166 kilometers, southwest).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.