March Weather in Arai Japan
Daily high temperatures increase by 11°F, from 42°F to 53°F, rarely falling below 34°F or exceeding 64°F.
Daily low temperatures increase by 8°F, from 31°F to 39°F, rarely falling below 24°F or exceeding 46°F.
For reference, on August 7, the hottest day of the year, temperatures in Arai typically range from 73°F to 85°F, while on January 28, the coldest day of the year, they range from 28°F to 37°F.
Average High and Low Temperature in March in Arai
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on March. 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 March in Arai
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 month of March in Arai experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 56% to 49%.
The clearest day of the month is March 29, with clear, mostly clear, or partly cloudy conditions 51% of the time.
For reference, on July 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 67%, while on October 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 58%.
Cloud Cover Categories in March in Arai
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Arai, the chance of a wet day over the course of March is rapidly decreasing, starting the month at 45% and ending it at 37%.
For reference, the year's highest daily chance of a wet day is 61% on December 9, and its lowest chance is 29% on May 24.
Over the course of March in Arai, the chance of a day with only rain increases from 30% to 36%, the chance of a day with mixed snow and rain decreases from 10% to 1%, and the chance of a day with only snow decreases from 4% to 0%.
Probability of Precipitation in March in Arai
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during March in Arai is essentially constant, remaining about 3.2 inches throughout, and rarely exceeding 4.7 inches or falling below 1.7 inches.
The highest average 31-day accumulation is 3.3 inches on March 24.
Average Monthly Rainfall in March in Arai
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. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during March in Arai is gradually decreasing, starting the month at 0.6 inches, when it rarely exceeds 1.2 inches, and ending the month at 0.1 inches, when it rarely exceeds 0.2 inches or falls below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in March in Arai
Over the course of March in Arai, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 11 minutes, implying an average daily increase of 2 minutes, 22 seconds, and weekly increase of 16 minutes, 35 seconds.
The shortest day of the month is March 1, with 11 hours, 23 minutes of daylight and the longest day is March 31, with 12 hours, 34 minutes of daylight.
Hours of Daylight and Twilight in March in Arai
The latest sunrise of the month in Arai is 6:18 AM on March 1 and the earliest sunrise is 44 minutes earlier at 5:34 AM on March 31.
The earliest sunset is 5:40 PM on March 1 and the latest sunset is 27 minutes later at 6:08 PM on March 31.
Daylight saving time is not observed in Arai during 2021.
For reference, on June 21, the longest day of the year, the Sun rises at 4:27 AM and sets 14 hours, 42 minutes later, at 7:10 PM, while on December 21, the shortest day of the year, it rises at 6:56 AM and sets 9 hours, 37 minutes later, at 4:33 PM.
Sunrise & Sunset with Twilight in March in Arai
The figure below presents a compact representation of key lunar data for March 2021. 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 March in Arai
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 in Arai is essentially constant during March, remaining around 0% throughout.
For reference, on August 5, the muggiest day of the year, there are muggy conditions 94% of the time, while on November 10, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in March in Arai
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Arai is decreasing during March, decreasing from 10.2 miles per hour to 8.5 miles per hour over the course of the month.
For reference, on January 18, the windiest day of the year, the daily average wind speed is 11.3 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.
Average Wind Speed in March in Arai
The hourly average wind direction in Arai throughout March is predominantly from the west, with a peak proportion of 54% on March 1.
Wind Direction in March in Arai
Arai 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 in Arai is essentially constant during March, remaining around 50°F throughout.
The lowest average surface water temperature during March is 50°F on March 18.
Average Water Temperature in March in Arai
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 in Arai typically lasts for 8.3 months (251 days), from around March 26 to around December 2, rarely starting before March 11 or after April 11, and rarely ending before November 15 or after December 20.
During March in Arai, the chance that a given day is within the growing season is very rapidly increasing rising from 2% to 64% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in March in Arai
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
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 in Arai are essentially constant during March, remaining within 10°F of 13°F throughout.
Growing Degree Days in March in Arai
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 in Arai is increasing during March, rising by 1.4 kWh, from 3.4 kWh to 4.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in March in Arai
For the purposes of this report, the geographical coordinates of Arai are 37.001 deg latitude, 138.226 deg longitude, and 574 ft elevation.
The topography within 2 miles of Arai contains very significant variations in elevation, with a maximum elevation change of 1,188 feet and an average elevation above sea level of 608 feet. Within 10 miles contains very significant variations in elevation (8,130 feet). Within 50 miles also contains extreme variations in elevation (9,938 feet).
The area within 2 miles of Arai is covered by trees (59%) and cropland (24%), within 10 miles by trees (72%) and cropland (21%), and within 50 miles by trees (43%) and water (41%).
This report illustrates the typical weather in Arai, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Arai.
For each station, the records are corrected for the elevation difference between that station and Arai 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 Arai is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Arai and a given station.
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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
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.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.