Average Weather in Lisbon Maine, United States
In Lisbon, the summers are warm, the winters are freezing, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 11°F to 80°F and is rarely below -5°F or above 88°F.
Based on the tourism score, the best time of year to visit Lisbon for warm-weather activities is from late June to early September.
The warm season lasts for 3.5 months, from June 1 to September 17, with an average daily high temperature above 69°F. The hottest day of the year is July 27, with an average high of 80°F and low of 60°F.
The cold season lasts for 3.3 months, from December 2 to March 12, with an average daily high temperature below 39°F. The coldest day of the year is January 29, with an average low of 11°F and high of 29°F.
Average High and Low Temperature
Average Hourly Temperature
In Lisbon, 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 Lisbon begins around June 27 and lasts for 4.1 months, ending around October 29. On September 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.
The cloudier part of the year begins around October 29 and lasts for 7.9 months, ending around June 27. On May 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 57% of the time, and clear, mostly clear, or partly cloudy 43% 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 Lisbon varies throughout the year.
The wetter season lasts 8.1 months, from April 10 to December 12, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 36% on July 24.
The drier season lasts 3.9 months, from December 12 to April 10. The smallest chance of a wet day is 22% 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 Lisbon changes throughout the year.
Rain alone is the most common for 9.7 months, from February 24 to December 15. The highest chance of a day with rain alone is 36% on July 24.
Snow alone is the most common for 2.3 months, from December 15 to February 24. The highest chance of a day with snow alone is 15% on January 6.
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. Lisbon experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Lisbon. The most rain falls during the 31 days centered around October 23, with an average total accumulation of 4.3 inches.
The least rain falls around January 23, with an average total accumulation of 1.1 inches.
Average Monthly Rainfall
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Lisbon experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 6.0 months, from October 26 to April 26, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 18, with an average total liquid-equivalent accumulation of 1.7 inches.
The snowless period of the year lasts for 6.0 months, from April 26 to October 26. 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 Lisbon varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 53 minutes of daylight; the longest day is June 21, with 15 hours, 30 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:56 AM on June 15, and the latest sunrise is 2 hours, 23 minutes later at 7:19 AM on November 3. The earliest sunset is at 4:02 PM on December 9, and the latest sunset is 4 hours, 25 minutes later at 8:27 PM on June 26.
Daylight saving time (DST) is observed in Lisbon 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
Lisbon experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.0 months, from June 15 to September 14, during which time the comfort level is muggy, oppressive, or miserable at least 5% of the time. The muggiest day of the year is July 30, with muggy conditions 21% 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 Lisbon experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.4 months, from November 16 to April 27, with average wind speeds of more than 5.5 miles per hour. The windiest day of the year is March 4, with an average hourly wind speed of 7.1 miles per hour.
The calmer time of year lasts for 6.6 months, from April 27 to November 16. The calmest day of the year is July 31, with an average hourly wind speed of 3.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Lisbon varies throughout the year.
The wind is most often from the north for 2.0 months, from March 1 to April 30, with a peak percentage of 37% on March 10. The wind is most often from the south for 2.2 months, from April 30 to July 5 and for 2.1 weeks, from July 26 to August 10, with a peak percentage of 38% on June 30. The wind is most often from the west for 3.0 weeks, from July 5 to July 26 and for 6.7 months, from August 10 to March 1, with a peak percentage of 38% on July 9.
Lisbon 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 water temperature experiences significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 2.9 months, from June 29 to September 26, with an average temperature above 57°F. The day of the year with the warmest water is August 8, with an average temperature of 61°F.
The time of year with cooler water lasts for 3.5 months, from January 8 to April 24, with an average temperature below 42°F. The day of the year with the coolest water is March 9, with an average temperature of 37°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Lisbon 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 Lisbon for general outdoor tourist activities is from late June to early September, with a peak score in the second week of August.
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 Lisbon 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 Lisbon typically lasts for 5.2 months (159 days), from around May 2 to around October 7, rarely starting before April 15 or after May 18, and rarely ending before September 22 or after October 23.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Lisbon should appear around May 7, only rarely appearing before April 27 or after May 16.
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 5.7 kWh. The brightest day of the year is July 1, with an average of 6.7 kWh.
The darker period of the year lasts for 3.3 months, from October 31 to February 9, with an average daily incident shortwave energy per square meter below 2.5 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 Lisbon are 44.031 deg latitude, -70.104 deg longitude, and 197 ft elevation.
The topography within 2 miles of Lisbon contains only modest variations in elevation, with a maximum elevation change of 308 feet and an average elevation above sea level of 202 feet. Within 10 miles contains only modest variations in elevation (751 feet). Within 50 miles contains significant variations in elevation (3,235 feet).
The area within 2 miles of Lisbon is covered by trees (64%), cropland (16%), and artificial surfaces (15%), within 10 miles by trees (76%) and artificial surfaces (12%), and within 50 miles by trees (65%) and water (28%).
This report illustrates the typical weather in Lisbon, 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 Lisbon.
For each station, the records are corrected for the elevation difference between that station and Lisbon 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 Lisbon is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lisbon and a given station.
The stations contributing to this reconstruction are: Auburn/Lewiston Municipal Airport (55%, 14 kilometers, west); Naval Air Station Brunswick (33%, 20 kilometers, southeast); and Augusta State Airport (12%, 40 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .