Average Weather in October in Trenton Maine, United States
Daily high temperatures decrease by 10°F, from 62°F to 52°F, rarely falling below 42°F or exceeding 70°F.
Daily low temperatures decrease by 8°F, from 46°F to 38°F, rarely falling below 28°F or exceeding 56°F.
For reference, on July 26, the hottest day of the year, temperatures in Trenton typically range from 59°F to 76°F, while on January 29, the coldest day of the year, they range from 14°F to 30°F.
Average High and Low Temperature in October
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 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 October
The month of October in Trenton experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 41% to 47%.
The clearest day of the month is October 2, with clear, mostly clear, or partly cloudy conditions 59% of the time.
For reference, on May 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 58%, while on September 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 63%.
Cloud Cover Categories in October
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 Trenton, the chance of a wet day over the course of October is gradually increasing, starting the month at 27% and ending it at 29%.
For reference, the year's highest daily chance of a wet day is 34% on December 11, and its lowest chance is 22% on August 30.
Over the course of October in Trenton, the chance of a day with only rain remains an essentially constant 27% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.
Probability of Precipitation in October
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during October in Trenton is gradually increasing, starting the month at 3.9 inches, when it rarely exceeds 6.7 inches or falls below 1.5 inches, and ending the month at 4.2 inches, when it rarely exceeds 6.9 inches or falls below 1.6 inches.
Average Monthly Rainfall in October
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 October in Trenton is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.3 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in October
Over the course of October in Trenton, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 28 minutes, implying an average daily decrease of 2 minutes, 56 seconds, and weekly decrease of 20 minutes, 34 seconds.
The shortest day of the month is October 31, with 10 hours, 14 minutes of daylight and the longest day is October 1, with 11 hours, 42 minutes of daylight.
Hours of Daylight and Twilight in October
The earliest sunrise of the month in Trenton is 6:31 AM on October 1 and the latest sunrise is 38 minutes later at 7:09 AM on October 31.
The latest sunset is 6:13 PM on October 1 and the earliest sunset is 50 minutes earlier at 5:23 PM on October 31.
Daylight saving time is observed in Trenton during 2021, but it neither starts nor ends during October, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 4:49 AM and sets 15 hours, 33 minutes later, at 8:21 PM, while on December 21, the shortest day of the year, it rises at 7:06 AM and sets 8 hours, 50 minutes later, at 3:56 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in October
The figure below presents a compact representation of key lunar data for October 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 October
The chance that a given day will be muggy in Trenton is essentially constant during October, remaining around 0% throughout.
For reference, on August 3, the muggiest day of the year, there are muggy conditions 13% 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 October
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Trenton is increasing during October, increasing from 7.5 miles per hour to 8.9 miles per hour over the course of the month.
For reference, on January 31, the windiest day of the year, the daily average wind speed is 10.2 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 5.7 miles per hour.
Average Wind Speed in October
The wind direction in Trenton during October is predominantly out of the south from October 1 to October 7 and the west from October 7 to October 31.
Wind Direction in October
Trenton is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Trenton is gradually decreasing during October, falling by 3°F, from 54°F to 51°F, over the course of the month.
Average Water Temperature in October
The growing season in Trenton typically lasts for 5.4 months (166 days), from around May 1 to around October 14, rarely starting before April 15 or after May 18, and rarely ending before September 27 or after November 1.
During October in Trenton, the chance that a given day is within the growing season is very rapidly decreasing falling from 82% to 12% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in October
The average accumulated growing degree days in Trenton are gradually increasing during October, increasing by 95°F, from 1,694°F to 1,789°F, over the course of the month.
Growing Degree Days in October
The average daily incident shortwave solar energy in Trenton is decreasing during October, falling by 1.4 kWh, from 3.9 kWh to 2.5 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in October
For the purposes of this report, the geographical coordinates of Trenton are 44.439 deg latitude, -68.370 deg longitude, and 56 ft elevation.
The topography within 2 miles of Trenton contains only modest variations in elevation, with a maximum elevation change of 161 feet and an average elevation above sea level of 44 feet. Within 10 miles contains only modest variations in elevation (1,532 feet). Within 50 miles also contains very significant variations in elevation (1,532 feet).
The area within 2 miles of Trenton is covered by water (42%), trees (40%), and artificial surfaces (15%), within 10 miles by trees (55%) and water (37%), and within 50 miles by trees (47%) and water (47%).
This report illustrates the typical weather in Trenton, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Trenton.
For each station, the records are corrected for the elevation difference between that station and Trenton 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 Trenton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Trenton and a given station.
Time zones for airports and weather stations are provided by AskGeo.com .