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Average Weather at Loring Air Force Base / Limeston Maine, United States

At Loring Air Force Base / Limeston, the summers are comfortable, wet, and partly cloudy and the winters are freezing, snowy, and mostly cloudy. Over the course of the year, the temperature typically varies from 4°F to 76°F and is rarely below -13°F or above 84°F.

Temperature

The warm season lasts for 3.7 months, from May 27 to September 17, with an average daily high temperature above 65°F. The hottest day of the year is July 27, with an average high of 76°F and low of 58°F.

The cold season lasts for 3.3 months, from December 2 to March 12, with an average daily high temperature below 31°F. The coldest day of the year is January 29, with an average low of 4°F and high of 20°F.

Average High and Low Temperature

Average High and Low Temperature at Loring Air Force Base / LimestonwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-20°F-10°F0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJan 2920°FJan 2920°FJul 2776°FJul 2776°F4°F4°F58°F58°FMay 2765°FMay 2765°FSep 1765°FSep 1765°FDec 231°FDec 231°FMar 1231°FMar 1231°F45°F45°F48°F48°F19°F19°F15°F15°FLowHigh
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 at Loring Air Force Base / LimestonJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMvery coldcoldcoolfrigidfreezingcomfortable
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

At Loring Air Force Base / Limeston, 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 at Loring Air Force Base / Limeston begins around June 8 and lasts for 4.7 months, ending around October 31. On August 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 60% of the time, and overcast or mostly cloudy 40% of the time.

The cloudier part of the year begins around October 31 and lasts for 7.3 months, ending around June 8. On January 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 70% of the time, and clear, mostly clear, or partly cloudy 29% of the time.

Cloud Cover Categories

Cloud Cover Categories at Loring Air Force Base / LimestonclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 2160%Aug 2160%Jan 1129%Jan 1129%Jun 845%Jun 845%Oct 3145%Oct 3145%partly cloudymostly cloudyclearovercastmostly clear
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 at Loring Air Force Base / Limeston varies throughout the year.

The wetter season lasts 4.3 months, from May 14 to September 25, with a greater than 33% chance of a given day being a wet day. The chance of a wet day peaks at 46% on July 11.

The drier season lasts 7.7 months, from September 25 to May 14. The smallest chance of a wet day is 20% on February 11.

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 at Loring Air Force Base / Limeston changes throughout the year.

Rain alone is the most common for 8.4 months, from March 21 to December 2. The highest chance of a day with rain alone is 46% on July 11.

Snow alone is the most common for 3.6 months, from December 2 to March 21. The highest chance of a day with snow alone is 16% on January 9.

Daily Chance of Precipitation

Daily Chance of Precipitation at Loring Air Force Base / LimestonsnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 1146%Jul 1146%Feb 1120%Feb 1120%Mar 2125%Mar 2125%Dec 228%Dec 228%May 1433%May 1433%Sep 2533%Sep 2533%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. Loring Air Force Base / Limeston experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Loring Air Force Base / Limeston. The most rain falls during the 31 days centered around July 16, with an average total accumulation of 3.8 inches.

The least rain falls around February 13, with an average total accumulation of 0.5 inches.

Average Monthly Rainfall

Average Monthly Rainfall at Loring Air Force Base / LimestonJanFebMarAprMayJunJulAugSepOctNovDec0 in1 in2 in3 in4 in5 in6 in7 inJul 163.8 inJul 163.8 inFeb 130.5 inFeb 130.5 inSep 303.2 inSep 303.2 in
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. Loring Air Force Base / Limeston experiences significant seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 6.4 months, from October 21 to May 2, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around March 1, with an average total liquid-equivalent accumulation of 1.4 inches.

The snowless period of the year lasts for 5.6 months, from May 2 to October 21. The least snow falls around July 27, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall at Loring Air Force Base / LimestonsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 in2.5 in3.0 in3.5 in4.0 inMar 11.4 inMar 11.4 inJul 270.0 inJul 270.0 inDec 301.3 inDec 301.3 inOct 210.1 inOct 210.1 inMay 20.1 inMay 20.1 in
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 at Loring Air Force Base / Limeston varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 31 minutes of daylight; the longest day is June 21, with 15 hours, 53 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Loring Air Force Base / LimestonJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 53 minJun 2115 hr, 53 minJun 2112 hr, 10 minSep 2212 hr, 10 minSep 228 hr, 31 minDec 218 hr, 31 minDec 21nightnightday
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 4:36 AM on June 15, and the latest sunrise is 2 hours, 43 minutes later at 7:18 AM on November 4. The earliest sunset is at 3:42 PM on December 10, and the latest sunset is 4 hours, 48 minutes later at 8:30 PM on June 25.

Daylight saving time (DST) is observed at Loring Air Force Base / Limeston 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 at Loring Air Force Base / LimestonJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 154:36 AMJun 154:36 AM8:30 PMJun 258:30 PMJun 25Dec 103:42 PMDec 103:42 PM7:18 AMNov 47:18 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.

The perceived humidity level at Loring Air Force Base / Limeston, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 5% of 5% throughout.

Humidity Comfort Levels

Humidity Comfort Levels at Loring Air Force Base / LimestonJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Mar 20%Mar 20%Jul 3010%Jul 3010%drydrycomfortablecomfortablemuggymuggy
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 at Loring Air Force Base / Limeston experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 6.1 months, from November 4 to May 6, with average wind speeds of more than 6.9 miles per hour. The windiest day of the year is February 26, with an average hourly wind speed of 8.5 miles per hour.

The calmer time of year lasts for 5.9 months, from May 6 to November 4. The calmest day of the year is August 1, with an average hourly wind speed of 5.3 miles per hour.

Average Wind Speed

Average Wind Speed at Loring Air Force Base / LimestonwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mphFeb 268.5 mphFeb 268.5 mphAug 15.3 mphAug 15.3 mphNov 46.9 mphNov 46.9 mphMay 66.9 mphMay 66.9 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 at Loring Air Force Base / Limeston varies throughout the year.

The wind is most often from the north for 1.0 months, from April 4 to May 4, with a peak percentage of 33% on April 13. The wind is most often from the south for 1.3 months, from May 4 to June 12, with a peak percentage of 33% on June 11. The wind is most often from the west for 9.7 months, from June 12 to April 4, with a peak percentage of 45% on January 1.

Wind Direction

Wind Direction at Loring Air Force Base / LimestonWNSWJanFebMarAprMayJunJulAugSepOctNovDec0%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).

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 5.3 kWh. The brightest day of the year is July 2, with an average of 6.4 kWh.

The darker period of the year lasts for 3.5 months, from October 27 to February 12, with an average daily incident shortwave energy per square meter below 2.2 kWh. The darkest day of the year is December 17, with an average of 1.1 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Loring Air Force Base / LimestonbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJul 26.4 kWhJul 26.4 kWhDec 171.1 kWhDec 171.1 kWhMay 75.3 kWhMay 75.3 kWhAug 245.3 kWhAug 245.3 kWhOct 272.2 kWhOct 272.2 kWhFeb 122.2 kWhFeb 122.2 kWh
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 Loring Air Force Base / Limeston are 46.950 deg latitude, -67.883 deg longitude, and 696 ft elevation.

The topography within 2 miles of Loring Air Force Base / Limeston contains only modest variations in elevation, with a maximum elevation change of 220 feet and an average elevation above sea level of 700 feet. Within 10 miles contains only modest variations in elevation (732 feet). Within 50 miles contains significant variations in elevation (2,083 feet).

The area within 2 miles of Loring Air Force Base / Limeston is covered by trees (44%), artificial surfaces (37%), and cropland (15%), within 10 miles by trees (52%) and cropland (37%), and within 50 miles by trees (85%).

Data Sources

This report illustrates the typical weather at Loring Air Force Base / Limeston, 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

Loring Air Force Base / Limeston has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Caribou Municipal Airport, Saint-Léonard Airport, St Leonard Automatic Weather Reporting System, Northern Maine Regional Airport at Presque Isle, Northern Aroostook Regional Airport, Edmundston Airport, Houlton International Airport, and Millinocket Municipal Airport.

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.