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Fall Weather at Molde Airport, Årø Norway

Daily high temperatures decrease by 21°F, from 61°F to 40°F, rarely falling below 31°F or exceeding 69°F.

Daily low temperatures decrease by 18°F, from 49°F to 31°F, rarely falling below 19°F or exceeding 54°F.

For reference, on August 5, the hottest day of the year, temperatures at Molde Airport, Årø typically range from 53°F to 66°F, while on January 16, the coldest day of the year, they range from 27°F to 37°F.

Average High and Low Temperature in the Fall at Molde Airport, Årø

Average High and Low Temperature in the Fall at Molde Airport, ÅrøSepOctNov10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°FSummerWinterSep 161°FSep 161°F49°F49°FNov 3040°FNov 3040°F31°F31°FOct 154°FOct 154°F42°F42°FNov 145°FNov 145°F36°F36°F
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 hourly average fall temperatures. 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 the Fall at Molde Airport, Årø

Average Hourly Temperature in the Fall at Molde Airport, ÅrøSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWintervery coldcoldcoolcool
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Petersburg, Alaska, United States (3,911 miles away) is the far-away foreign place with temperatures most similar to Molde Airport, Årø (view comparison).

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The fall at Molde Airport, Årø experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 63% to 73%.

The clearest day of the fall is September 5, with clear, mostly clear, or partly cloudy conditions 37% of the time.

For reference, on January 24, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 79%, while on May 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 44%.

Cloud Cover Categories in the Fall at Molde Airport, Årø

Cloud Cover Categories in the Fall at Molde Airport, ÅrøSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterSep 137%Sep 137%Nov 3027%Nov 3027%Oct 134%Oct 134%Nov 130%Nov 130%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Molde Airport, Årø, the chance of a wet day over the course of the fall is essentially constant, remaining around 53% throughout.

For reference, the year's highest daily chance of a wet day is 58% on December 15, and its lowest chance is 34% on May 3.

Over the course of the fall at Molde Airport, Årø, the chance of a day with only rain decreases from 54% to 37%, the chance of a day with mixed snow and rain increases from 0% to 13%, and the chance of a day with only snow increases from 0% to 4%.

Probability of Precipitation in the Fall at Molde Airport, Årø

Probability of Precipitation in the Fall at Molde Airport, ÅrøSepOctNov0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%60%60%SummerWinterSep 154%Sep 154%Nov 3054%Nov 3054%Oct 154%Oct 154%Nov 151%Nov 151%snowmixedrain
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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the fall at Molde Airport, Årø is essentially constant, remaining about 5.4 inches throughout, and rarely exceeding 10.1 inches or falling below 1.8 inches.

The highest average 31-day accumulation is 5.6 inches on September 22.

Average Monthly Rainfall in the Fall at Molde Airport, Årø

Average Monthly Rainfall in the Fall at Molde Airport, ÅrøSepOctNov0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inSummerWinterSep 215.6 inSep 215.6 inSep 15.2 inSep 15.2 inNov 305.4 inNov 305.4 inNov 15.4 inNov 15.4 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 snowfall.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during the fall at Molde Airport, Årø is very rapidly increasing, starting the season at 0.0 inches, when it rarely exceeds 0.0 inches or falls below -0.0 inches, and ending the season at 7.7 inches, when it rarely exceeds 21.2 inches or falls below 0.1 inches.

Average Monthly Snowfall in the Fall at Molde Airport, Årø

Average Monthly Snowfall in the Fall at Molde Airport, ÅrøSepOctNov0 in0 in5 in5 in10 in10 in15 in15 in20 in20 in25 in25 inSummerWinterSep 10.0 inSep 10.0 inNov 307.7 inNov 307.7 inOct 10.2 inOct 10.2 inNov 11.8 inNov 11.8 in
The average 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.

Over the course of the fall at Molde Airport, Årø, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 8 hours, 44 minutes, implying an average daily decrease of 5 minutes, 49 seconds, and weekly decrease of 40 minutes, 45 seconds.

The shortest day of the fall is November 30, with 5 hours, 38 minutes of daylight and the longest day is September 1, with 14 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in the Fall at Molde Airport, Årø

Hours of Daylight and Twilight in the Fall at Molde Airport, ÅrøSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 15 minSep 2212 hr, 15 minnightnightdaydayNov 305 hr, 38 minNov 305 hr, 38 minNov 18 hr, 13 minNov 18 hr, 13 min
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 of the fall at Molde Airport, Årø is 6:19 AM on September 1 and the latest sunrise is 3 hours, 12 minutes later at 9:30 AM on November 30.

The latest sunset is 8:40 PM on September 1 and the earliest sunset is 5 hours, 32 minutes earlier at 3:08 PM on November 30.

Daylight saving time (DST) starts at 2:00 AM on October 27, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 3:27 AM and sets 20 hours, 10 minutes later, at 11:37 PM, while on December 21, the shortest day of the year, it rises at 10:04 AM and sets 4 hours, 50 minutes later, at 2:54 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall at Molde Airport, Årø

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall at Molde Airport, ÅrøSepOctNov2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSummerWinter6:19 AM6:19 AMSep 18:40 PMSep 18:40 PM9:30 AM9:30 AMNov 303:08 PMNov 303:08 PM7:39 AM7:39 AMOct 16:59 PMOct 16:59 PM8:07 AM8:07 AMNov 14:20 PMNov 14:20 PMDSTOct 27DSTOct 27SolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the fall. 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.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in the Fall at Molde Airport, Årø

Solar Elevation and Azimuth in the Fall at Molde Airport, ÅrøSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWinter002030001040
northeastsouthwest
Solar elevation and azimuth in the the fall of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the fall of 2024. 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 the Fall at Molde Airport, Årø

Moon Rise, Set & Phases in the Fall at Molde Airport, ÅrøSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 41:14 PMAug 41:14 PMAug 198:26 PMAug 198:26 PMSep 33:56 AMSep 33:56 AMSep 184:35 AMSep 184:35 AMOct 28:50 PMOct 28:50 PMOct 171:27 PMOct 171:27 PMNov 11:48 PMNov 11:48 PMNov 1510:29 PMNov 1510:29 PMDec 17:22 AMDec 17:22 AM10:51 PM10:51 PM6:13 AM6:13 AM6:26 AM6:26 AM8:45 PM8:45 PM7:49 PM7:49 PM7:18 AM7:18 AM7:06 AM7:06 AM6:46 PM6:46 PM5:43 PM5:43 PM3:40 PM3:40 PM2:41 PM2:41 PM12:00 AM12:00 AM12:00 AM12:00 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 chance that a given day will be muggy at Molde Airport, Årø is essentially constant during the fall, remaining around 0% throughout.

For reference, on August 4, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Fall at Molde Airport, Årø

Humidity Comfort Levels in the Fall at Molde Airport, ÅrøSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterSep 10%Sep 10%Nov 300%Nov 300%Oct 10%Oct 10%Nov 10%Nov 10%comfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Molde Airport, Årø is rapidly increasing during the fall, increasing from 6.7 miles per hour to 10.0 miles per hour over the course of the season.

For reference, on January 21, the windiest day of the year, the daily average wind speed is 11.3 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 5.5 miles per hour.

Average Wind Speed in the Fall at Molde Airport, Årø

Average Wind Speed in the Fall at Molde Airport, ÅrøSepOctNov0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mphSummerWinterSep 16.7 mphSep 16.7 mphNov 3010.0 mphNov 3010.0 mphOct 18.0 mphOct 18.0 mphNov 19.1 mphNov 19.1 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Molde Airport, Årø throughout the fall is predominantly from the south, with a peak proportion of 56% on November 24.

Wind Direction in the Fall at Molde Airport, Årø

Wind Direction in the Fall at Molde Airport, ÅrøWSSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Molde Airport, Årø 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 surface water temperature at Molde Airport, Årø is rapidly decreasing during the fall, falling by 10°F, from 57°F to 47°F, over the course of the season.

Average Water Temperature in the Fall at Molde Airport, Årø

Average Water Temperature in the Fall at Molde Airport, ÅrøSepOctNov40°F40°F45°F45°F50°F50°F55°F55°F60°F60°FSummerWinterSep 157°FSep 157°FNov 3047°FNov 3047°FOct 154°FOct 154°FNov 150°FNov 150°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Molde Airport, Årø typically lasts for 5.7 months (173 days), from around April 28 to around October 18, rarely starting before April 6 or after May 17, and rarely ending before September 30 or after November 8.

During the fall at Molde Airport, Årø, the chance that a given day is within the growing season is very rapidly decreasing falling from 100% to 1% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Molde Airport, Årø

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Molde Airport, Årøgrowing seasonSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinter100%Sep 1100%Sep 1Nov 301%Nov 301%88%Oct 188%Oct 1Nov 118%Nov 118%freezingvery coldcoldcoolfrigid
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 percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Molde Airport, Årø are gradually increasing during the fall, increasing by 131°F, from 791°F to 922°F, over the course of the season.

Growing Degree Days in the Fall at Molde Airport, Årø

Growing Degree Days in the Fall at Molde Airport, ÅrøSepOctNov600°F600°F700°F700°F800°F800°F900°F900°F1,000°F1,000°F1,100°F1,100°F1,200°F1,200°FSummerWinterSep 1791°FSep 1791°FNov 30922°FNov 30922°FOct 1896°FOct 1896°FNov 1919°FNov 1919°F
The average growing degree days accumulated over the course of the fall, with 25th to 75th and 10th to 90th percentile bands.

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 at Molde Airport, Årø is very rapidly decreasing during the fall, falling by 2.9 kWh, from 3.1 kWh to 0.1 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Fall at Molde Airport, Årø

Average Daily Incident Shortwave Solar Energy in the Fall at Molde Airport, ÅrøSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhSummerWinterSep 13.1 kWhSep 13.1 kWhNov 300.1 kWhNov 300.1 kWhOct 11.6 kWhOct 11.6 kWhNov 10.5 kWhNov 10.5 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.

This report illustrates the typical weather at Molde Airport, Årø, 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

Molde Airport, Årø 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 are Kristiansund Airport, Kvernberget; Ålesund Airport, Vigra; and Ørland 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 Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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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.

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