Average Weather in Oster Ukraine
In Oster, the summers are 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 18°F to 78°F and is rarely below -1°F or above 89°F.
Based on the tourism score, the best time of year to visit Oster for warm-weather activities is from mid June to late August.
The warm season lasts for 3.7 months, from May 16 to September 8, with an average daily high temperature above 68°F. The hottest day of the year is July 27, with an average high of 78°F and low of 59°F.
The cold season lasts for 3.8 months, from November 18 to March 12, with an average daily high temperature below 39°F. The coldest day of the year is February 3, with an average low of 18°F and high of 29°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 Oster, 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 Oster begins around April 20 and lasts for 5.9 months, ending around October 16. On August 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 68% of the time, and overcast or mostly cloudy 32% of the time.
The cloudier part of the year begins around October 16 and lasts for 6.1 months, ending around April 20. On November 29, the cloudiest day of the year, the sky is overcast or mostly cloudy 73% of the time, and clear, mostly clear, or partly cloudy 27% 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 Oster varies throughout the year.
The wetter season lasts 2.7 months, from May 12 to August 3, with a greater than 24% chance of a given day being a wet day. The chance of a wet day peaks at 32% on June 27.
The drier season lasts 9.3 months, from August 3 to May 12. The smallest chance of a wet day is 16% on March 21.
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 Oster changes throughout the year.
Rain alone is the most common for 11 months, from February 17 to January 10. The highest chance of a day with rain alone is 32% on June 27.
Snow alone is the most common for 1.2 months, from January 10 to February 17. The highest chance of a day with snow alone is 8% on February 4.
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. Oster experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from February 17 to December 30, 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 2.4 inches.
The rainless period of the year lasts for 1.6 months, from December 30 to February 17. The least rain falls around January 20, with an average total accumulation of 0.4 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. Oster experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.3 months, from October 29 to April 6, 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 22, with an average total liquid-equivalent accumulation of 0.5 inches.
The snowless period of the year lasts for 6.7 months, from April 6 to October 29. The least snow falls around July 27, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Oster varies extremely over the course of the year. In 2021, the shortest day is December 21, with 7 hours, 55 minutes of daylight; the longest day is June 21, with 16 hours, 32 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:41 AM on June 17, and the latest sunrise is 3 hours, 18 minutes later at 7:59 AM on December 31. The earliest sunset is at 3:50 PM on December 12, and the latest sunset is 5 hours, 25 minutes later at 9:14 PM on June 25.
Daylight saving time (DST) is observed in Oster during 2021, starting in the spring on March 28, lasting 7.1 months, and ending in the fall on October 31.
Sunrise & Sunset with Twilight and Daylight Saving Time
The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.
Moon Rise, Set & Phases
The perceived humidity level in Oster, 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
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Oster 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 9.5 miles per hour. The windiest day of the year is January 25, with an average hourly wind speed of 11.1 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 July 27, with an average hourly wind speed of 7.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Oster varies throughout the year.
The wind is most often from the south for 3.7 weeks, from April 1 to April 27 and for 2.9 weeks, from November 6 to November 26, with a peak percentage of 34% on November 12. The wind is most often from the north for 3.6 months, from April 27 to August 15, with a peak percentage of 34% on July 4. The wind is most often from the west for 2.7 months, from August 15 to November 6 and for 4.2 months, from November 26 to April 1, with a peak percentage of 35% on October 24.
Best Time of Year to Visit
To characterize how pleasant the weather is in Oster 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 Oster for general outdoor tourist activities is from mid June to late August, with a peak score in the first 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 Oster 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 Oster typically lasts for 6.0 months (183 days), from around April 15 to around October 15, rarely starting before March 28 or after May 4, and rarely ending before September 27 or after November 2.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Oster should appear around April 27, only rarely appearing before April 18 or after May 8.
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 May 1 to August 21, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest day of the year is June 21, with an average of 6.5 kWh.
The darker period of the year lasts for 3.7 months, from October 26 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 20, with an average of 0.7 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Oster are 50.951 deg latitude, 30.882 deg longitude, and 374 ft elevation.
The topography within 2 miles of Oster contains only modest variations in elevation, with a maximum elevation change of 115 feet and an average elevation above sea level of 344 feet. Within 10 miles also contains only modest variations in elevation (171 feet). Within 50 miles also contains only modest variations in elevation (456 feet).
The area within 2 miles of Oster is covered by cropland (46%), trees (25%), grassland (14%), and shrubs (10%), within 10 miles by cropland (48%) and trees (29%), and within 50 miles by cropland (47%) and trees (30%).
This report illustrates the typical weather in Oster, 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 Oster.
For each station, the records are corrected for the elevation difference between that station and Oster 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 Oster is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Oster and a given station.
The stations contributing to this reconstruction are: Gostomel Airport (36%, 62 kilometers, southwest); Kiev Boryspil International Airport (32%, 67 kilometers, south); and Kyiv Zhuliany International Airport (31%, 68 kilometers, southwest).
Time zones for airports and weather stations are provided by AskGeo.com .