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Average Weather in Gardiner Maine, United States

In Gardiner, 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 13°F to 79°F and is rarely below -2°F or above 87°F.

Temperature

The warm season lasts for 3.5 months, from June 2 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 79°F and low of 62°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 13°F and high of 29°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in GardinerJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcomfortablecoldcoolwarmfreezingvery cold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Gardiner, 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 Gardiner 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

Cloud Cover Categories in GardinerclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Sep 264%Sep 264%May 1643%May 1643%Jun 2753%Jun 2753%Oct 2954%Oct 2954%clearmostly clearpartly cloudymostly cloudyovercast
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Gardiner varies throughout the year.

The wetter season lasts 6.9 months, from May 14 to December 11, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 37% on June 13.

The drier season lasts 5.1 months, from December 11 to May 14. The smallest chance of a wet day is 22% on January 29.

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 Gardiner changes throughout the year.

Rain alone is the most common for 9.8 months, from February 22 to December 16. The highest chance of a day with rain alone is 37% on June 13.

Snow alone is the most common for 2.2 months, from December 16 to February 22. The highest chance of a day with snow alone is 14% on December 30.

Daily Chance of Precipitation

Daily Chance of Precipitation in GardinersnowrainJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jun 1337%Jun 1337%Jan 2922%Jan 2922%Dec 1629%Dec 1629%May 1429%May 1429%snowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Gardiner experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Gardiner. The most rain falls during the 31 days centered around October 23, with an average total accumulation of 4.2 inches.

The least rain falls around January 23, with an average total accumulation of 1.2 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

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. Gardiner 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 25, 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 11, with an average total liquid-equivalent accumulation of 1.6 inches.

The snowless period of the year lasts for 6.0 months, from April 25 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 average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Gardiner varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 52 minutes of daylight; the longest day is June 21, with 15 hours, 31 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 4:54 AM on June 15, and the latest sunrise is 2 hours, 26 minutes later at 7:20 AM on November 4. The earliest sunset is at 4:00 PM on December 9, and the latest sunset is 4 hours, 27 minutes later at 8:26 PM on June 26.

Daylight saving time (DST) is observed in Gardiner during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in GardinerJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 154:54 AMJun 154:54 AM8:26 PMJun 268:26 PMJun 26Dec 94:00 PMDec 94:00 PM7:20 AMNov 47:20 AMNov 4Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Gardiner experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.0 months, from June 17 to September 15, during which time the comfort level is muggy, oppressive, or miserable at least 6% of the time. The muggiest day of the year is July 30, with muggy conditions 23% of the time.

The least muggy day of the year is December 12, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in GardinermuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Dec 120%Dec 120%Jul 3023%Jul 3023%Jun 176%Jun 176%Sep 156%Sep 156%muggymuggyhumidhumiddrydrycomfortablecomfortableoppressiveoppressive
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Gardiner experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.9 months, from October 28 to April 25, with average wind speeds of more than 5.9 miles per hour. The windiest day of the year is February 23, with an average hourly wind speed of 7.7 miles per hour.

The calmer time of year lasts for 6.1 months, from April 25 to October 28. The calmest day of the year is July 31, with an average hourly wind speed of 4.1 miles per hour.

Average Wind Speed

Average Wind Speed in GardinerwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mph9 mph10 mph11 mph12 mphFeb 237.7 mphFeb 237.7 mphJul 314.1 mphJul 314.1 mphOct 285.9 mphOct 285.9 mphApr 255.9 mphApr 255.9 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Gardiner varies throughout the year.

The wind is most often from the north for 2.1 months, from February 27 to April 29, with a peak percentage of 37% on March 10. The wind is most often from the south for 3.6 months, from April 29 to August 18 and for 3.4 weeks, from September 5 to September 29, with a peak percentage of 40% on July 1. The wind is most often from the west for 2.6 weeks, from August 18 to September 5 and for 5.0 months, from September 29 to February 27, with a peak percentage of 34% on August 24.

Wind Direction

Wind Direction in GardinerWNSWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westnorthsoutheast
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Gardiner 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 27, with an average temperature above 56°F. The day of the year with the warmest water is August 7, with an average temperature of 61°F.

The time of year with cooler water lasts for 3.5 months, from January 9 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

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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 7 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 2, with an average of 6.7 kWh.

The darker period of the year lasts for 3.4 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

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Gardiner are 44.230 deg latitude, -69.775 deg longitude, and 177 ft elevation.

The topography within 2 miles of Gardiner contains only modest variations in elevation, with a maximum elevation change of 328 feet and an average elevation above sea level of 144 feet. Within 10 miles contains only modest variations in elevation (545 feet). Within 50 miles contains significant variations in elevation (3,117 feet).

The area within 2 miles of Gardiner is covered by trees (64%), artificial surfaces (18%), and cropland (13%), within 10 miles by trees (79%), and within 50 miles by trees (66%) and water (27%).

Data Sources

This report illustrates the typical weather in Gardiner, 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 Gardiner.

For each station, the records are corrected for the elevation difference between that station and Gardiner 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 Gardiner is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Gardiner and a given station.

The stations contributing to this reconstruction are: Augusta State Airport (70%, 10 kilometers, north); Wiscasset Airport (16%, 30 kilometers, south); Auburn/Lewiston Municipal Airport (8%, 45 kilometers, southwest); and Knox County Regional Airport (6%, 57 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.