Average Weather in Lyman Ukraine
In Lyman, the summers are warm 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 81°F and is rarely below -1°F or above 92°F.
The warm season lasts for 3.7 months, from May 18 to September 9, with an average daily high temperature above 71°F. The hottest day of the year is July 27, with an average high of 81°F and low of 63°F.
The cold season lasts for 3.9 months, from November 17 to March 13, 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 28°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 Lyman, 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 Lyman begins around April 24 and lasts for 5.7 months, ending around October 15. On August 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time.
The cloudier part of the year begins around October 15 and lasts for 6.3 months, ending around April 24. On January 8, the cloudiest day of the year, the sky is overcast or mostly cloudy 74% of the time, and clear, mostly clear, or partly cloudy 26% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Lyman varies throughout the year.
The wetter season lasts 2.2 months, from May 15 to July 20, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 29% on June 12.
The drier season lasts 9.8 months, from July 20 to May 15. The smallest chance of a wet day is 16% on October 29.
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 29% on June 12.
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. Lyman experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Lyman. The most rain falls during the 31 days centered around June 26, with an average total accumulation of 2.0 inches.
The least rain falls around February 9, 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. Lyman experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.8 months, from November 4 to March 30, 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 19, with an average total liquid-equivalent accumulation of 0.5 inches.
The snowless period of the year lasts for 7.1 months, from March 30 to November 4. The least snow falls around July 19, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Lyman varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 8 minutes of daylight; the longest day is June 21, with 16 hours, 18 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:26 AM on June 16, and the latest sunrise is 3 hours, 5 minutes later at 7:30 AM on December 31. The earliest sunset is at 3:33 PM on December 12, and the latest sunset is 5 hours, 11 minutes later at 8:45 PM on June 25.
Daylight saving time (DST) is observed in Lyman during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The perceived humidity level in Lyman, 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
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Lyman experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.1 months, from November 12 to April 15, with average wind speeds of more than 5.3 miles per hour. The windiest day of the year is February 8, with an average hourly wind speed of 6.4 miles per hour.
The calmer time of year lasts for 6.9 months, from April 15 to November 12. The calmest day of the year is July 27, with an average hourly wind speed of 4.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Lyman varies throughout the year.
The wind is most often from the east for 4.1 months, from February 11 to June 15 and for 2.4 weeks, from November 15 to December 2, with a peak percentage of 34% on April 15. The wind is most often from the west for 2.0 weeks, from June 15 to June 29; for 2.5 months, from August 30 to November 15; and for 2.3 months, from December 2 to February 11, with a peak percentage of 31% on October 24. The wind is most often from the north for 2.0 months, from June 29 to August 30, with a peak percentage of 35% on August 10.
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
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 3 to August 22, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest day of the year is July 7, with an average of 6.7 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 2.0 kWh. The darkest day of the year is December 20, with an average of 0.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Lyman are 49.598 deg latitude, 36.470 deg longitude, and 312 ft elevation.
The topography within 2 miles of Lyman is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 306 feet. Within 10 miles is essentially flat (479 feet). Within 50 miles contains only modest variations in elevation (623 feet).
The area within 2 miles of Lyman is covered by cropland (61%) and trees (15%), within 10 miles by cropland (50%) and trees (33%), and within 50 miles by cropland (66%) and trees (19%).
This report illustrates the typical weather in Lyman, 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 Lyman.
For each station, the records are corrected for the elevation difference between that station and Lyman 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 Lyman is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lyman and a given station.
The stations contributing to this reconstruction are: Kharkiv International Airport (83%, 39 kilometers, north); Dnipropetrovsk International Airport (9%, 171 kilometers, southwest); and Donetsk International Airport (8%, 193 kilometers, southeast).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.