Average Weather in December in Derazhnya Ukraine
Daily high temperatures decrease by 5°F, from 35°F to 30°F, rarely falling below 18°F or exceeding 46°F.
Daily low temperatures decrease by 6°F, from 25°F to 20°F, rarely falling below 5°F or exceeding 36°F.
For reference, on July 29, the hottest day of the year, temperatures in Derazhnya typically range from 57°F to 76°F, while on February 2, the coldest day of the year, they range from 18°F to 29°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, 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 December
The month of December in Derazhnya experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 69% throughout the month. The highest chance of overcast or mostly cloudy conditions is 70% on December 4.
The clearest day of the month is December 17, with clear, mostly clear, or partly cloudy conditions 32% of the time.
For reference, on December 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on August 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.
Cloud Cover Categories in December
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. In Derazhnya, the chance of a wet day over the course of December is essentially constant, remaining around 16% throughout.
For reference, the year's highest daily chance of a wet day is 36% on June 27, and its lowest chance is 14% on January 26.
Over the course of December in Derazhnya, the chance of a day with only rain decreases from 9% to 5%, the chance of a day with mixed snow and rain remains an essentially constant 3% throughout, and the chance of a day with only snow increases from 5% to 8%.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Derazhnya is gradually decreasing, starting the month at 0.6 inches, when it rarely exceeds 1.2 inches or falls below 0.1 inches, and ending the month at 0.3 inches, when it rarely exceeds 0.8 inches.
Average Monthly Rainfall in December
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. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during December in Derazhnya is essentially constant, remaining about 0.5 inches throughout, and rarely exceeding 1.2 inches or falling to 0.0 inches.
The highest average 31-day liquid-equivalent accumulation is 0.5 inches on December 16.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Derazhnya, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 11 minutes of daylight and the longest day is December 1, with 8 hours, 30 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Derazhnya is 7:44 AM on December 1 and the latest sunrise is 21 minutes later at 8:05 AM on December 31.
The earliest sunset is 4:11 PM on December 12 and the latest sunset is 10 minutes later at 4:21 PM on December 31.
Daylight saving time is observed in Derazhnya during 2021, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:04 AM and sets 16 hours, 15 minutes later, at 9:19 PM, while on December 21, the shortest day of the year, it rises at 8:02 AM and sets 8 hours, 11 minutes later, at 4:13 PM.
Sunrise & Sunset with Twilight in December
The figure below presents a compact representation of key lunar data for December 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in December
The chance that a given day will be muggy in Derazhnya is essentially constant during December, remaining around 0% throughout.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 7% of the time, while on October 17, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Derazhnya is essentially constant during December, remaining around 10.7 miles per hour throughout.
For reference, on February 4, the windiest day of the year, the daily average wind speed is 11.5 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 7.7 miles per hour.
Average Wind Speed in December
The hourly average wind direction in Derazhnya throughout December is predominantly from the west, with a peak proportion of 40% on December 21.
Wind Direction in December
The growing season in Derazhnya typically lasts for 5.7 months (173 days), from around April 23 to around October 13, rarely starting before April 4 or after May 11, and rarely ending before September 25 or after October 31.
The month of December in Derazhnya is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Derazhnya are essentially constant during December, remaining around 2,016°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Derazhnya is essentially constant during December, remaining within 0.1 kWh of 1.0 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 0.9 kWh on December 22.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Derazhnya are 49.269 deg latitude, 27.434 deg longitude, and 922 ft elevation.
The topography within 2 miles of Derazhnya contains only modest variations in elevation, with a maximum elevation change of 315 feet and an average elevation above sea level of 980 feet. Within 10 miles also contains only modest variations in elevation (440 feet). Within 50 miles contains only modest variations in elevation (1,135 feet).
The area within 2 miles of Derazhnya is covered by cropland (71%) and trees (12%), within 10 miles by cropland (67%) and trees (19%), and within 50 miles by cropland (68%) and trees (17%).
This report illustrates the typical weather in Derazhnya, 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 Derazhnya.
At a distance of 175 kilometers from Derazhnya, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .
The weight assigned to the MERRA-2 value depends on the distance from Derazhnya to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 34%, making the weight assigned to the weather station 66%.
Time zones for airports and weather stations are provided by AskGeo.com .