Average Weather in Bierawa Poland
In Bierawa, the summers are comfortable; the winters are very cold, dry, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 25°F to 77°F and is rarely below 9°F or above 87°F.
Based on the tourism score, the best time of year to visit Bierawa for warm-weather activities is from mid June to early September.
The warm season lasts for 3.5 months, from May 24 to September 9, with an average daily high temperature above 68°F. The hottest day of the year is August 6, with an average high of 77°F and low of 57°F.
The cold season lasts for 3.5 months, from November 21 to March 6, with an average daily high temperature below 43°F. The coldest day of the year is January 19, with an average low of 25°F and high of 35°F.
Average High and Low Temperature
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
In Bierawa, 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 Bierawa begins around April 18 and lasts for 5.7 months, ending around October 10. On July 18, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 60% of the time, and overcast or mostly cloudy 40% of the time.
The cloudier part of the year begins around October 10 and lasts for 6.3 months, ending around April 18. On November 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 65% of the time, and clear, mostly clear, or partly cloudy 35% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Bierawa varies throughout the year.
The wetter season lasts 4.2 months, from May 5 to September 13, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 35% on July 5.
The drier season lasts 7.8 months, from September 13 to May 5. The smallest chance of a wet day is 16% on January 26.
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 35% on July 5.
Daily Chance of Precipitation
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. Bierawa experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Bierawa. The most rain falls during the 31 days centered around July 6, with an average total accumulation of 2.9 inches.
The least rain falls around February 2, with an average total accumulation of 0.6 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Bierawa does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Bierawa varies extremely over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 2 minutes of daylight; the longest day is June 21, with 16 hours, 25 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:35 AM on June 17, and the latest sunrise is 3 hours, 11 minutes later at 7:46 AM on December 31. The earliest sunset is at 3:43 PM on December 12, and the latest sunset is 5 hours, 18 minutes later at 9:01 PM on June 25.
Daylight saving time (DST) is observed in Bierawa during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Bierawa, 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 2% of 2% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Bierawa experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.8 months, from October 16 to April 9, with average wind speeds of more than 9.3 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 11.2 miles per hour.
The calmer time of year lasts for 6.2 months, from April 9 to October 16. The calmest day of the year is August 10, with an average hourly wind speed of 7.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Bierawa varies throughout the year.
The wind is most often from the west for 3.2 months, from January 8 to April 13 and for 3.7 months, from June 9 to October 1, with a peak percentage of 40% on July 7. The wind is most often from the north for 1.9 months, from April 13 to June 9, with a peak percentage of 31% on June 8. The wind is most often from the south for 3.2 months, from October 1 to January 8, with a peak percentage of 38% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Bierawa throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Bierawa for general outdoor tourist activities is from mid June to early September, with a peak score in the second week of August.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Bierawa for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Bierawa typically lasts for 6.1 months (185 days), from around April 19 to around October 21, rarely starting before March 30 or after May 8, and rarely ending before October 4 or after November 7.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Bierawa should appear around April 23, only rarely appearing before April 14 or after May 4.
Growing Degree Days
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 3.6 months, from April 29 to August 18, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest day of the year is June 26, with an average of 6.5 kWh.
The darker period of the year lasts for 3.7 months, from October 27 to February 17, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest day of the year is December 24, with an average of 0.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Bierawa are 50.281 deg latitude, 18.242 deg longitude, and 574 ft elevation.
The topography within 2 miles of Bierawa is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 579 feet. Within 10 miles is essentially flat (407 feet). Within 50 miles contains only modest variations in elevation (4,511 feet).
The area within 2 miles of Bierawa is covered by cropland (53%), artificial surfaces (20%), and trees (20%), within 10 miles by cropland (48%) and trees (39%), and within 50 miles by cropland (46%) and trees (34%).
This report illustrates the typical weather in Bierawa, 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 Bierawa.
For each station, the records are corrected for the elevation difference between that station and Bierawa 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 Bierawa is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bierawa and a given station.
The stations contributing to this reconstruction are: Katowice-Muchowiec Airport (43%, 57 kilometers, east); Leoš Janáček Airport Ostrava (35%, 66 kilometers, south); Wroclaw / Strachowice (12%, 132 kilometers, northwest); and Lask (10%, 156 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .