Average Weather in August in Caribou Maine, United States
Daily high temperatures decrease by 5°F, from 76°F to 71°F, rarely falling below 62°F or exceeding 84°F.
Daily low temperatures decrease by 5°F, from 57°F to 52°F, rarely falling below 42°F or exceeding 65°F.
For reference, on July 27, the hottest day of the year, temperatures in Caribou typically range from 57°F to 76°F, while on January 29, the coldest day of the year, they range from 3°F to 21°F.
Average High and Low Temperature in August
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. 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 August
Nizhniy Novgorod, Russia (4,308 miles away); Tsovasar, Armenia (5,165 miles); and Utashinai, Japan (5,935 miles) are the far-away foreign places with temperatures most similar to Caribou (view comparison).
The month of August in Caribou experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 44% to 40%.
The clearest day of the month is August 21, with clear, mostly clear, or partly cloudy conditions 60% of the time.
For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 69%, while on September 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 60%.
Cloud Cover Categories in August
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 Caribou, the chance of a wet day over the course of August is very rapidly decreasing, starting the month at 42% and ending it at 31%.
For reference, the year's highest daily chance of a wet day is 46% on July 12, and its lowest chance is 21% on February 12.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Caribou is decreasing, starting the month at 3.6 inches, when it rarely exceeds 6.0 inches or falls below 1.8 inches, and ending the month at 3.0 inches, when it rarely exceeds 5.0 inches or falls below 1.4 inches.
Average Monthly Rainfall in August
Over the course of August in Caribou, 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, 29 minutes, implying an average daily decrease of 2 minutes, 59 seconds, and weekly decrease of 20 minutes, 50 seconds.
The shortest day of the month is August 31, with 13 hours, 22 minutes of daylight and the longest day is August 1, with 14 hours, 52 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Caribou is 5:12 AM on August 1 and the latest sunrise is 38 minutes later at 5:50 AM on August 31.
The latest sunset is 8:03 PM on August 1 and the earliest sunset is 51 minutes earlier at 7:12 PM on August 31.
Daylight saving time is observed in Caribou during 2021, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 4:37 AM and sets 15 hours, 53 minutes later, at 8:30 PM, while on December 21, the shortest day of the year, it rises at 7:14 AM and sets 8 hours, 32 minutes later, at 3:46 PM.
Sunrise & Sunset with Twilight in August
The figure below presents a compact representation of key lunar data for August 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 August
The chance that a given day will be muggy in Caribou is decreasing during August, falling from 10% to 5% over the course of the month.
For reference, on July 30, the muggiest day of the year, there are muggy conditions 11% of the time, while on October 30, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Caribou is essentially constant during August, remaining within 0.2 miles per hour of 5.4 miles per hour throughout.
For reference, on February 26, the windiest day of the year, the daily average wind speed is 8.4 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
The lowest daily average wind speed during August is 5.2 miles per hour on August 1.
Average Wind Speed in August
The hourly average wind direction in Caribou throughout August is predominantly from the west, with a peak proportion of 42% on August 13.
Wind Direction in August
The growing season in Caribou typically lasts for 4.8 months (146 days), from around May 9 to around October 2, rarely starting before April 23 or after May 26, and rarely ending before September 15 or after October 20.
The month of August in Caribou is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in August
The average accumulated growing degree days in Caribou are increasing during August, increasing by 429°F, from 1,041°F to 1,471°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Caribou is gradually decreasing during August, falling by 0.9 kWh, from 5.9 kWh to 5.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Caribou are 46.861 deg latitude, -68.012 deg longitude, and 453 ft elevation.
The topography within 2 miles of Caribou contains only modest variations in elevation, with a maximum elevation change of 315 feet and an average elevation above sea level of 524 feet. Within 10 miles contains only modest variations in elevation (692 feet). Within 50 miles contains significant variations in elevation (2,083 feet).
The area within 2 miles of Caribou is covered by cropland (48%), artificial surfaces (37%), and trees (12%), within 10 miles by cropland (50%) and trees (39%), and within 50 miles by trees (84%) and cropland (10%).
This report illustrates the typical weather in Caribou, 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 Caribou.
For each station, the records are corrected for the elevation difference between that station and Caribou 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 Caribou is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Caribou and a given station.
Time zones for airports and weather stations are provided by AskGeo.com .