Average Weather in October in Roseau Minnesota, United States
Daily high temperatures decrease by 16°F, from 61°F to 45°F, rarely falling below 30°F or exceeding 75°F.
Daily low temperatures decrease by 11°F, from 41°F to 29°F, rarely falling below 16°F or exceeding 52°F.
For reference, on July 24, the hottest day of the year, temperatures in Roseau typically range from 58°F to 80°F, while on January 15, the coldest day of the year, they range from -2°F to 16°F.
Average High and Low Temperature in October
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 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 October
The month of October in Roseau experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 46% to 54%.
The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 54% of the time.
For reference, on February 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on August 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.
Cloud Cover Categories in October
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Roseau, the chance of a wet day over the course of October is decreasing, starting the month at 20% and ending it at 14%.
For reference, the year's highest daily chance of a wet day is 41% on June 20, and its lowest chance is 5% on January 24.
Over the course of October in Roseau, the chance of a day with only rain decreases from 20% to 11%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in October
The average sliding 31-day rainfall during October in Roseau is decreasing, starting the month at 1.7 inches, when it rarely exceeds 3.2 inches or falls below 0.4 inches, and ending the month at 0.9 inches, when it rarely exceeds 2.2 inches or falls below 0.1 inches.
Average Monthly Rainfall in October
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 October in Roseau is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in October
Over the course of October in Roseau, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 43 minutes, implying an average daily decrease of 3 minutes, 27 seconds, and weekly decrease of 24 minutes, 7 seconds.
The shortest day of the month is October 31, with 9 hours, 56 minutes of daylight and the longest day is October 1, with 11 hours, 39 minutes of daylight.
Hours of Daylight and Twilight in October
The earliest sunrise of the month in Roseau is 7:22 AM on October 1 and the latest sunrise is 46 minutes later at 8:08 AM on October 31.
The latest sunset is 7:01 PM on October 1 and the earliest sunset is 58 minutes earlier at 6:04 PM on October 31.
Daylight saving time is observed in Roseau during 2018, but it neither starts nor ends during October, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:19 AM and sets 16 hours, 11 minutes later, at 9:30 PM, while on December 21, the shortest day of the year, it rises at 8:13 AM and sets 8 hours, 15 minutes later, at 4:28 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in October
The chance that a given day will be muggy in Roseau is essentially constant during October, remaining around 0% throughout.
For reference, on July 24, the muggiest day of the year, there are muggy conditions 24% of the time, while on November 11, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in October
The average hourly wind speed in Roseau is essentially constant during October, remaining within 0.1 miles per hour of 10.5 miles per hour throughout.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 11.1 miles per hour, while on July 27, the calmest day of the year, the daily average wind speed is 8.7 miles per hour.
The highest daily average wind speed during October is 10.6 miles per hour on October 20.
Average Wind Speed in October
Wind Direction in October
The growing season in Roseau typically lasts for 4.4 months (137 days), from around May 11 to around September 24, rarely starting before April 22 or after May 29, and rarely ending before September 8 or after October 12.
The month of October in Roseau is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 31% to 1% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in October
The average accumulated growing degree days in Roseau are gradually increasing during October, increasing by 67°F, from 2,027°F to 2,093°F, over the course of the month.
Growing Degree Days in October
The average daily incident shortwave solar energy in Roseau is decreasing during October, falling by 1.4 kWh, from 3.4 kWh to 2.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in October
For the purposes of this report, the geographical coordinates of Roseau are 48.846 deg latitude, -95.763 deg longitude, and 1,050 ft elevation.
The topography within 2 miles of Roseau is essentially flat, with a maximum elevation change of 33 feet and an average elevation above sea level of 1,047 feet. Within 10 miles is essentially flat (115 feet). Within 50 miles also contains only modest variations in elevation (472 feet).
The area within 2 miles of Roseau is covered by cropland (79%) and artificial surfaces (20%), within 10 miles by cropland (77%), and within 50 miles by cropland (37%) and trees (35%).
This report illustrates the typical weather in Roseau 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Roseau.
For each station, the records are corrected for the elevation difference between that station and Roseau 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 Roseau is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Roseau and a given station.
The stations contributing to this reconstruction are: Roseau, Roseau Municipal Airport/Rudy Billberg Field (97%, 4.9 kilometers, east); Hallock Municipal Airport (1.3%, 87 kilometers, west); and Thief River Falls Regional Airport (1.2%, 92 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .