Average Weather in Starokostyantyniv Ukraine
In Starokostyantyniv, the summers are long, comfortable, and partly cloudy and the winters are long, freezing, dry, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 19°F to 75°F and is rarely below 0°F or above 85°F.
Based on the tourism score, the best time of year to visit Starokostyantyniv for warm-weather activities is from late June to late August.
The warm season lasts for 4.0 months, from May 11 to September 10, with an average daily high temperature above 66°F. The hottest day of the year is July 29, with an average high of 75°F and low of 56°F.
The cold season lasts for 3.7 months, from November 20 to March 11, with an average daily high temperature below 39°F. The coldest day of the year is February 2, with an average low of 19°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 Starokostyantyniv, 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 Starokostyantyniv begins around April 27 and lasts for 5.5 months, ending around October 10. On August 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 69% of the time, and overcast or mostly cloudy 31% of the time.
The cloudier part of the year begins around October 10 and lasts for 6.6 months, ending around April 27. On December 4, the cloudiest day of the year, the sky is overcast or mostly cloudy 72% of the time, and clear, mostly clear, or partly cloudy 28% 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 Starokostyantyniv varies throughout the year.
The wetter season lasts 3.0 months, from May 11 to August 10, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 37% on June 26.
The drier season lasts 9.0 months, from August 10 to May 11. The smallest chance of a wet day is 14% on January 23.
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 in Starokostyantyniv changes throughout the year.
Rain alone is the most common for 11 months, from February 14 to January 13. The highest chance of a day with rain alone is 37% on June 26.
Snow alone is the most common for 1.1 months, from January 13 to February 14. The highest chance of a day with snow alone is 7% on December 16.
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. Starokostyantyniv experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.2 months, from March 6 to December 13, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 28, with an average total accumulation of 3.1 inches.
The rainless period of the year lasts for 2.8 months, from December 13 to March 6. The least rain falls around January 26, with an average total accumulation of 0.3 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. Starokostyantyniv experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.2 months, from October 25 to April 2, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 17, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 6.7 months, from April 2 to October 25. The least snow falls around July 13, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Starokostyantyniv varies extremely over the course of the year. In 2018, the shortest day is December 22, with 8 hours, 7 minutes of daylight; the longest day is June 21, with 16 hours, 20 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:02 AM on June 17, and the latest sunrise is 3 hours, 6 minutes later at 8:08 AM on December 31. The earliest sunset is at 4:10 PM on December 12, and the latest sunset is 5 hours, 13 minutes later at 9:23 PM on June 25.
Daylight saving time (DST) is observed in Starokostyantyniv 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 Starokostyantyniv, 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 5% of 5% 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 Starokostyantyniv experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 6.4 months, from October 11 to April 23, with average wind speeds of more than 9.8 miles per hour. The windiest day of the year is January 25, with an average hourly wind speed of 11.8 miles per hour.
The calmer time of year lasts for 5.6 months, from April 23 to October 11. The calmest day of the year is August 5, with an average hourly wind speed of 7.7 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Starokostyantyniv varies throughout the year.
The wind is most often from the south for 1.5 months, from April 2 to May 16 and for 1.4 months, from October 13 to November 24, with a peak percentage of 38% on November 12. The wind is most often from the north for 3.1 months, from May 16 to August 19, with a peak percentage of 35% on July 9. The wind is most often from the west for 1.8 months, from August 19 to October 13 and for 4.3 months, from November 24 to April 2, with a peak percentage of 33% on September 30.
Best Time of Year to Visit
To characterize how pleasant the weather is in Starokostyantyniv 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 Starokostyantyniv for general outdoor tourist activities is from late 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 Starokostyantyniv 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 Starokostyantyniv typically lasts for 5.6 months (171 days), from around April 22 to around October 10, rarely starting before April 3 or after May 10, and rarely ending before September 21 or after October 30.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Starokostyantyniv should appear around April 27, only rarely appearing before April 19 or after May 10.
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 3.7 months, from May 1 to August 22, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest day of the year is June 22, with an average of 6.5 kWh.
The darker period of the year lasts for 3.6 months, from October 28 to February 16, with an average daily incident shortwave energy per square meter below 2.0 kWh. The darkest day of the year is December 22, with an average of 0.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Starokostyantyniv are 49.758 deg latitude, 27.203 deg longitude, and 896 ft elevation.
The topography within 2 miles of Starokostyantyniv contains only modest variations in elevation, with a maximum elevation change of 190 feet and an average elevation above sea level of 890 feet. Within 10 miles also contains only modest variations in elevation (479 feet). Within 50 miles contains only modest variations in elevation (732 feet).
The area within 2 miles of Starokostyantyniv is covered by cropland (62%), trees (14%), and grassland (12%), within 10 miles by cropland (70%) and trees (13%), and within 50 miles by cropland (65%) and trees (19%).
This report illustrates the typical weather in Starokostyantyniv, 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 is only a single weather station, Rivne International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Starokostyantyniv.
At a distance of 121 kilometers from Starokostyantyniv, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Starokostyantyniv according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
Time zones for aiports and weather stations are provided by AskGeo.com .