Average Weather in Farmington Maine, United States
In Farmington, the summers are comfortable and wet, the winters are freezing and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 10°F to 78°F and is rarely below -5°F or above 86°F.
Based on the tourism score, the best time of year to visit Farmington for warm-weather activities is from late June to early September.
The warm season lasts for 3.7 months, from May 27 to September 17, with an average daily high temperature above 68°F. The hottest day of the year is July 27, with an average high of 78°F and low of 60°F.
The cold season lasts for 3.3 months, from December 2 to March 11, with an average daily high temperature below 37°F. The coldest day of the year is January 29, with an average low of 10°F and high of 27°F.
Average High and Low Temperature
Average Hourly Temperature
In Farmington, 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 Farmington begins around June 27 and lasts for 4.0 months, ending around October 26. On September 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 63% of the time, and overcast or mostly cloudy 37% of the time.
The cloudier part of the year begins around October 26 and lasts for 8.0 months, ending around June 27. On May 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 58% of the time, and clear, mostly clear, or partly cloudy 42% 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 Farmington varies throughout the year.
The wetter season lasts 3.7 months, from May 2 to August 25, with a greater than 30% chance of a given day being a wet day. The chance of a wet day peaks at 40% on June 13.
The drier season lasts 8.3 months, from August 25 to May 2. The smallest chance of a wet day is 21% on February 5.
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 in Farmington changes throughout the year.
Rain alone is the most common for 9.1 months, from March 5 to December 6. The highest chance of a day with rain alone is 40% on June 13.
Snow alone is the most common for 2.9 months, from December 6 to March 5. The highest chance of a day with snow alone is 16% on December 30.
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. Farmington experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Farmington. The most rain falls during the 31 days centered around October 22, with an average total accumulation of 3.9 inches.
The least rain falls around January 29, with an average total accumulation of 0.9 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. Farmington experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 6.1 months, from October 24 to April 27, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 30, with an average total liquid-equivalent accumulation of 1.6 inches.
The snowless period of the year lasts for 5.9 months, from April 27 to October 24. The least snow falls around July 21, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Farmington varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 48 minutes of daylight; the longest day is June 21, with 15 hours, 34 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:54 AM on June 15, and the latest sunrise is 2 hours, 27 minutes later at 7:21 AM on November 3. The earliest sunset is at 4:00 PM on December 9, and the latest sunset is 4 hours, 30 minutes later at 8:30 PM on June 26.
Daylight saving time (DST) is observed in Farmington during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
Farmington experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.0 months, from June 13 to September 14, during which time the comfort level is muggy, oppressive, or miserable at least 4% of the time. The muggiest day of the year is July 30, with muggy conditions 18% of the time.
The least muggy day of the year is March 2, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
The average hourly wind speed in Farmington experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.0 months, from November 30 to April 30, with average wind speeds of more than 5.3 miles per hour. The windiest day of the year is February 25, with an average hourly wind speed of 6.8 miles per hour.
The calmer time of year lasts for 7.0 months, from April 30 to November 30. The calmest day of the year is July 31, with an average hourly wind speed of 3.7 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Farmington varies throughout the year.
The wind is most often from the north for 4.0 days, from April 28 to May 2, with a peak percentage of 30% on April 28. The wind is most often from the west for 12 months, from May 2 to April 28, with a peak percentage of 50% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Farmington throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Farmington for general outdoor tourist activities is from late June to early September, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Farmington for hot-weather activities is from early July to mid August, with a peak score in the last week of July.
The growing season in Farmington typically lasts for 5.5 months (165 days), from around April 28 to around October 11, rarely starting before April 14 or after May 13, and rarely ending before September 26 or after October 27.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Farmington should appear around May 7, only rarely appearing before April 27 or after May 18.
Growing Degree Days
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 3.5 months, from May 6 to August 24, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest day of the year is July 2, with an average of 6.7 kWh.
The darker period of the year lasts for 3.3 months, from October 30 to February 8, with an average daily incident shortwave energy per square meter below 2.4 kWh. The darkest day of the year is December 17, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Farmington are 44.671 deg latitude, -70.151 deg longitude, and 505 ft elevation.
The topography within 2 miles of Farmington contains significant variations in elevation, with a maximum elevation change of 571 feet and an average elevation above sea level of 478 feet. Within 10 miles contains significant variations in elevation (2,493 feet). Within 50 miles contains large variations in elevation (4,219 feet).
The area within 2 miles of Farmington is covered by trees (72%) and artificial surfaces (19%), within 10 miles by trees (95%), and within 50 miles by trees (90%).
This report illustrates the typical weather in Farmington, 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 Farmington.
For each station, the records are corrected for the elevation difference between that station and Farmington 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 Farmington is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Farmington and a given station.
The stations contributing to this reconstruction are: Waterville Robert Lafleur Airport (42%, 41 kilometers, east); Augusta State Airport (33%, 48 kilometers, southeast); Berlin Municipal Airport (14%, 82 kilometers, west); and Greenville (11%, 98 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .