Average Weather in April in Jamestown Kentucky, United States
Daily high temperatures increase by 9°F, from 63°F to 72°F, rarely falling below 49°F or exceeding 83°F.
Daily low temperatures increase by 8°F, from 42°F to 50°F, rarely falling below 28°F or exceeding 62°F.
For reference, on July 21, the hottest day of the year, temperatures in Jamestown typically range from 67°F to 86°F, while on January 29, the coldest day of the year, they range from 27°F to 44°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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 April
Sant'Agata sul Santerno, Italy (4,798 miles away); Negotino, Macedonia (5,338 miles); and Bagratashen, Armenia (6,180 miles) are the far-away foreign places with temperatures most similar to Jamestown (view comparison).
The month of April in Jamestown experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 48% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 47% on April 26.
The clearest day of the month is April 26, with clear, mostly clear, or partly cloudy conditions 53% of the time.
For reference, on January 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on September 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Jamestown, the chance of a wet day over the course of April is gradually increasing, starting the month at 35% and ending it at 38%.
For reference, the year's highest daily chance of a wet day is 43% on June 30, and its lowest chance is 24% on October 12.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Jamestown is increasing, starting the month at 3.8 inches, when it rarely exceeds 6.1 inches or falls below 1.9 inches, and ending the month at 4.6 inches, when it rarely exceeds 8.4 inches or falls below 2.0 inches.
Average Monthly Rainfall in April
Over the course of April in Jamestown, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 5 minutes, implying an average daily increase of 2 minutes, 13 seconds, and weekly increase of 15 minutes, 34 seconds.
The shortest day of the month is April 1, with 12 hours, 37 minutes of daylight and the longest day is April 30, with 13 hours, 41 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Jamestown is 6:25 AM on April 1 and the earliest sunrise is 39 minutes earlier at 5:47 AM on April 30.
The earliest sunset is 7:02 PM on April 1 and the latest sunset is 26 minutes later at 7:28 PM on April 30.
Daylight saving time is observed in Jamestown during 2018, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:20 AM and sets 14 hours, 42 minutes later, at 8:03 PM, while on December 21, the shortest day of the year, it rises at 6:49 AM and sets 9 hours, 37 minutes later, at 4:27 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Jamestown is gradually increasing during April, rising from 0% to 5% over the course of the month.
For reference, on July 24, the muggiest day of the year, there are muggy conditions 81% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
The average hourly wind speed in Jamestown is gradually decreasing during April, decreasing from 7.8 miles per hour to 6.9 miles per hour over the course of the month.
For reference, on February 25, the windiest day of the year, the daily average wind speed is 8.0 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 4.6 miles per hour.
Average Wind Speed in April
Wind Direction in April
The growing season in Jamestown typically lasts for 6.3 months (193 days), from around April 12 to around October 21, rarely starting before March 26 or after April 28, and rarely ending before October 2 or after November 9.
During April in Jamestown, the chance that a given day is within the growing season is very rapidly increasing rising from 22% to 93% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in Jamestown are increasing during April, increasing by 255°F, from 200°F to 455°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Jamestown is gradually increasing during April, rising by 1.0 kWh, from 5.0 kWh to 6.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Jamestown are 36.985 deg latitude, -85.063 deg longitude, and 935 ft elevation.
The topography within 2 miles of Jamestown contains only modest variations in elevation, with a maximum elevation change of 295 feet and an average elevation above sea level of 915 feet. Within 10 miles contains only modest variations in elevation (594 feet). Within 50 miles contains significant variations in elevation (1,896 feet).
The area within 2 miles of Jamestown is covered by cropland (68%) and trees (28%), within 10 miles by cropland (53%) and trees (33%), and within 50 miles by trees (55%) and cropland (42%).
This report illustrates the typical weather in Jamestown year round, 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 Jamestown.
For each station, the records are corrected for the elevation difference between that station and Jamestown 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 Jamestown is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Jamestown and a given station.
The stations contributing to this reconstruction are: Wayne County Airport (74%, 23 kilometers, southeast); Stuart Powell Field (14%, 71 kilometers, north); and Glasgow Municipal Airport (12%, 79 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .