Average Weather in Slonim Belarus
In Slonim, the summers are comfortable and partly cloudy and the winters are long, freezing, dry, windy, and overcast. Over the course of the year, the temperature typically varies from 20°F to 75°F and is rarely below 2°F or above 85°F.
Based on the tourism score, the best time of year to visit Slonim for warm-weather activities is from mid June to late August.
The warm season lasts for 3.8 months, from May 16 to September 8, with an average daily high temperature above 66°F. The hottest day of the year is July 25, with an average high of 75°F and low of 58°F.
The cold season lasts for 3.7 months, from November 19 to March 11, with an average daily high temperature below 38°F. The coldest day of the year is February 2, with an average low of 20°F and high of 30°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 Slonim, 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 Slonim begins around April 5 and lasts for 6.3 months, ending around October 14. On August 5, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 59% of the time, and overcast or mostly cloudy 41% of the time.
The cloudier part of the year begins around October 14 and lasts for 5.7 months, ending around April 5. On November 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 77% of the time, and clear, mostly clear, or partly cloudy 23% 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 Slonim varies throughout the year.
The wetter season lasts 2.8 months, from May 14 to August 6, with a greater than 27% chance of a given day being a wet day. The chance of a wet day peaks at 36% on June 27.
The drier season lasts 9.2 months, from August 6 to May 14. The smallest chance of a wet day is 17% on March 2.
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 27.
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. Slonim experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 11 months, from February 18 to February 2, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 5, with an average total accumulation of 2.7 inches.
The rainless period of the year lasts for 2.4 weeks, from February 2 to February 18. The least rain falls around February 10, with an average total accumulation of 0.5 inches.
Average Monthly Rainfall
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. Slonim experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.7 months, from November 5 to March 27, 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 1, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 7.3 months, from March 27 to November 5. The least snow falls around July 30, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Slonim varies extremely over the course of the year. In 2018, the shortest day is December 22, with 7 hours, 33 minutes of daylight; the longest day is June 21, with 16 hours, 57 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:51 AM on June 17, and the latest sunrise is 4 hours, 41 minutes later at 9:32 AM on December 30. The earliest sunset is at 5:01 PM on December 13, and the latest sunset is 4 hours, 48 minutes later at 9:49 PM on June 25.
Daylight saving time (DST) is not observed in Slonim during 2018.
Sunrise & Sunset with Twilight
The perceived humidity level in Slonim, 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 Slonim experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 6.1 months, from October 5 to April 8, with average wind speeds of more than 10.2 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 12.1 miles per hour.
The calmer time of year lasts for 5.9 months, from April 8 to October 5. The calmest day of the year is August 7, with an average hourly wind speed of 8.3 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Slonim varies throughout the year.
The wind is most often from the south for 4.1 weeks, from April 8 to May 7 and for 3.9 weeks, from November 1 to November 28, with a peak percentage of 37% on November 12. The wind is most often from the north for 4.0 weeks, from May 7 to June 4, with a peak percentage of 29% on June 3. The wind is most often from the west for 4.9 months, from June 4 to November 1 and for 4.3 months, from November 28 to April 8, with a peak percentage of 39% on August 26.
Best Time of Year to Visit
To characterize how pleasant the weather is in Slonim 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 Slonim for general outdoor tourist activities is from mid June to late August, 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 Slonim for hot-weather activities is from mid July to mid August, with a peak score in the last week of July.
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 Slonim typically lasts for 5.8 months (177 days), from around April 22 to around October 17, rarely starting before April 4 or after May 12, and rarely ending before September 28 or after November 3.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Slonim should appear around April 30, only rarely appearing before April 22 or after May 11.
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 3.5 months, from May 2 to August 19, with an average daily incident shortwave energy per square meter above 5.1 kWh. The brightest day of the year is June 18, with an average of 6.3 kWh.
The darker period of the year lasts for 3.8 months, from October 23 to February 18, with an average daily incident shortwave energy per square meter below 1.7 kWh. The darkest day of the year is December 22, with an average of 0.5 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Slonim are 53.087 deg latitude, 25.316 deg longitude, and 479 ft elevation.
The topography within 2 miles of Slonim contains only modest variations in elevation, with a maximum elevation change of 262 feet and an average elevation above sea level of 478 feet. Within 10 miles also contains only modest variations in elevation (354 feet). Within 50 miles contains only modest variations in elevation (833 feet).
The area within 2 miles of Slonim is covered by cropland (40%), artificial surfaces (27%), and trees (19%), within 10 miles by trees (46%) and cropland (38%), and within 50 miles by trees (43%) and cropland (40%).
This report illustrates the typical weather in Slonim, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Slonim.
For each station, the records are corrected for the elevation difference between that station and Slonim 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 Slonim is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Slonim and a given station.
The stations contributing to this reconstruction are: Brest Airport (39%, 145 kilometers, southwest); Loshitsa / Minsk International 1 (31%, 171 kilometers, northeast); and Vilnius International Airport (30%, 172 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .