Average Weather in July in Penobscot Maine, United States
Daily high temperatures increase by 3°F, from 75°F to 78°F, rarely falling below 66°F or exceeding 86°F. The highest daily average high temperature is 78°F on July 27.
Daily low temperatures increase by 3°F, from 57°F to 60°F, rarely falling below 50°F or exceeding 66°F.
For reference, on July 27, the hottest day of the year, temperatures in Penobscot typically range from 60°F to 78°F, while on January 29, the coldest day of the year, they range from 12°F to 29°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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 July
The month of July in Penobscot experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 44% throughout the month.
The clearest day of the month is July 26, with clear, mostly clear, or partly cloudy conditions 58% 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 July
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 Penobscot, the chance of a wet day over the course of July is essentially constant, remaining around 30% throughout.
For reference, the year's highest daily chance of a wet day is 32% on June 3, and its lowest chance is 22% on August 29.
Probability of Precipitation in July
The average sliding 31-day rainfall during July in Penobscot is essentially constant, remaining about 2.8 inches throughout, and rarely exceeding 5.5 inches or falling below 1.0 inches.
Average Monthly Rainfall in July
Over the course of July in Penobscot, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 49 minutes, implying an average daily decrease of 1 minute, 38 seconds, and weekly decrease of 11 minutes, 25 seconds.
The shortest day of the month is July 31, with 14 hours, 40 minutes of daylight and the longest day is July 1, with 15 hours, 29 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Penobscot is 4:54 AM on July 1 and the latest sunrise is 27 minutes later at 5:20 AM on July 31.
The latest sunset is 8:23 PM on July 1 and the earliest sunset is 22 minutes earlier at 8:00 PM on July 31.
Daylight saving time is observed in Penobscot during 2021, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 4:50 AM and sets 15 hours, 33 minutes later, at 8:23 PM, while on December 21, the shortest day of the year, it rises at 7:08 AM and sets 8 hours, 50 minutes later, at 3:58 PM.
Sunrise & Sunset with Twilight in July
The figure below presents a compact representation of key lunar data for July 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 July
The chance that a given day will be muggy in Penobscot is increasing during July, rising from 7% to 15% over the course of the month.
For reference, on August 2, the muggiest day of the year, there are muggy conditions 16% of the time, while on November 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in July
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Penobscot is essentially constant during July, remaining within 0.1 miles per hour of 5.1 miles per hour throughout.
For reference, on February 26, the windiest day of the year, the daily average wind speed is 8.5 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.
Average Wind Speed in July
The hourly average wind direction in Penobscot throughout July is predominantly from the south, with a peak proportion of 45% on July 14.
Wind Direction in July
Penobscot 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 Penobscot is increasing during July, rising by 4°F, from 53°F to 57°F, over the course of the month.
Average Water Temperature in July
The growing season in Penobscot typically lasts for 5.5 months (165 days), from around April 29 to around October 12, rarely starting before April 13 or after May 15, and rarely ending before September 25 or after October 29.
The month of July in Penobscot is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in July
The average accumulated growing degree days in Penobscot are rapidly increasing during July, increasing by 518°F, from 557°F to 1,075°F, over the course of the month.
Growing Degree Days in July
The average daily incident shortwave solar energy in Penobscot is essentially constant during July, remaining within 0.2 kWh of 6.5 kWh throughout.
The highest average daily incident shortwave solar energy during July is 6.7 kWh on July 2.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Penobscot are 44.465 deg latitude, -68.711 deg longitude, and 23 ft elevation.
The topography within 2 miles of Penobscot contains only modest variations in elevation, with a maximum elevation change of 236 feet and an average elevation above sea level of 81 feet. Within 10 miles contains only modest variations in elevation (984 feet). Within 50 miles also contains very significant variations in elevation (1,529 feet).
The area within 2 miles of Penobscot is covered by trees (75%) and water (17%), within 10 miles by trees (66%) and water (25%), and within 50 miles by trees (56%) and water (36%).
This report illustrates the typical weather in Penobscot, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Penobscot.
For each station, the records are corrected for the elevation difference between that station and Penobscot 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 Penobscot is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Penobscot and a given station.
The stations contributing to this reconstruction are: Hancock County-Bar Harbor Airport (46%, 27 kilometers, east); Bangor International Airport (28%, 38 kilometers, north); Knox County Regional Airport (17%, 54 kilometers, southwest); and Waterville Robert Lafleur Airport (10%, 76 kilometers, west).
Time zones for airports and weather stations are provided by AskGeo.com .