Average Weather in March in Westport Indiana, United States
Daily low temperatures increase by 9°F, from 30°F to 40°F, rarely falling below 17°F or exceeding 54°F.
For reference, on July 20, the hottest day of the year, temperatures in Westport typically range from 67°F to 84°F, while on January 29, the coldest day of the year, they range from 23°F to 38°F.
Average High and Low Temperature in March
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
The month of March in Westport experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 56% to 51%.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 49% of the time.
For reference, on December 25, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, while on August 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Westport, the chance of a wet day over the course of March is very rapidly increasing, starting the month at 25% and ending it at 35%.
For reference, the year's highest daily chance of a wet day is 43% on June 8, and its lowest chance is 20% on January 29.
Over the course of March in Westport, the chance of a day with only rain increases from 19% to 35%, the chance of a day with mixed snow and rain decreases from 3% to 1%, and the chance of a day with only snow decreases from 3% to 0%.
Probability of Precipitation in March
The average sliding 31-day rainfall during March in Westport is rapidly increasing, starting the month at 2.5 inches, when it rarely exceeds 4.7 inches or falls below 1.0 inches, and ending the month at 3.7 inches, when it rarely exceeds 5.6 inches or falls below 1.9 inches.
Average Monthly Rainfall in March
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 Westport is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.8 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in March
Over the course of March in Westport, 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, 17 minutes, implying an average daily increase of 2 minutes, 34 seconds, and weekly increase of 17 minutes, 57 seconds.
The shortest day of the month is March 1, with 11 hours, 21 minutes of daylight and the longest day is March 31, with 12 hours, 37 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Westport is 6:59 AM on March 11 and the latest sunrise is 58 minutes later at 7:57 AM on March 12.
The earliest sunset is 6:35 PM on March 1 and the latest sunset is 1 hour, 30 minutes later at 8:05 PM on March 31.
Daylight saving time (DST) starts at 3:00 AM on March 12, 2017, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 6:16 AM and sets 14 hours, 56 minutes later, at 9:12 PM, while on December 21, the shortest day of the year, it rises at 7:58 AM and sets 9 hours, 25 minutes later, at 5:22 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
The chance that a given day will be muggy in Westport is essentially constant during March, remaining around 0% throughout.
For reference, on July 23, the muggiest day of the year, there are muggy conditions 57% of the time, while on November 16, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in March
The average hourly wind speed in Westport is essentially constant during March, remaining within 0.1 miles per hour of 10.2 miles per hour throughout.
For reference, on April 2, the windiest day of the year, the daily average wind speed is 10.3 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 5.8 miles per hour.
Average Wind Speed in March
Wind Direction in March
The growing season in Westport typically lasts for 6.4 months (194 days), from around April 13 to around October 25, rarely starting before March 27 or after April 30, and rarely ending before October 8 or after November 11.
The month of March in Westport is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season increasing from 0% to 16% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in March
The average accumulated growing degree days in Westport are gradually increasing during March, increasing by 76°F, from 26°F to 102°F, over the course of the month.
Growing Degree Days in March
The average daily incident shortwave solar energy in Westport is increasing during March, rising by 1.3 kWh, from 3.6 kWh to 4.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in March
For the purposes of this report, the geographical coordinates of Westport are 39.176 deg latitude, -85.573 deg longitude, and 807 ft elevation.
The topography within 2 miles of Westport contains only modest variations in elevation, with a maximum elevation change of 138 feet and an average elevation above sea level of 803 feet. Within 10 miles also contains only modest variations in elevation (371 feet). Within 50 miles contains only modest variations in elevation (840 feet).
The area within 2 miles of Westport is covered by cropland (84%) and trees (16%), within 10 miles by cropland (78%) and trees (22%), and within 50 miles by cropland (56%) and trees (39%).
This report illustrates the typical weather in Westport year round, 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 Westport.
For each station, the records are corrected for the elevation difference between that station and Westport 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 Westport is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Westport and a given station.
The stations contributing to this reconstruction are: Columbus Bakalar Municipal Airport (66%, 30 kilometers, west); Cincinnati/Northern Kentucky International Airport (16%, 79 kilometers, east); Bowman Field (10%, 106 kilometers, south); and Capital City Airport (8%, 125 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .