Average Weather in October in Kalispell Montana, United States
Daily high temperatures decrease by 16°F, from 63°F to 47°F, rarely falling below 36°F or exceeding 74°F.
Daily low temperatures decrease by 7°F, from 37°F to 30°F, rarely falling below 18°F or exceeding 47°F.
For reference, on July 31, the hottest day of the year, temperatures in Kalispell typically range from 52°F to 84°F, while on December 29, the coldest day of the year, they range from 17°F to 29°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 Kalispell experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 44% to 59%.
The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 56% of the time.
For reference, on January 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 72%, while on July 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover Categories in October
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 Kalispell, the chance of a wet day over the course of October is rapidly increasing, starting the month at 19% and ending it at 26%.
For reference, the year's highest daily chance of a wet day is 36% on June 4, and its lowest chance is 13% on July 25.
Over the course of October in Kalispell, the chance of a day with only rain increases from 19% to 22%, the chance of a day with mixed snow and rain increases from 0% to 2%, 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 Kalispell is gradually increasing, starting the month at 1.2 inches, when it rarely exceeds 2.1 inches or falls below 0.3 inches, and ending the month at 1.5 inches, when it rarely exceeds 2.8 inches or falls below 0.5 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 Kalispell 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 Kalispell, 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, 41 minutes, implying an average daily decrease of 3 minutes, 22 seconds, and weekly decrease of 23 minutes, 31 seconds.
The shortest day of the month is October 31, with 9 hours, 57 minutes of daylight and the longest day is October 1, with 11 hours, 38 minutes of daylight.
Hours of Daylight and Twilight in October
The earliest sunrise of the month in Kalispell is 7:37 AM on October 1 and the latest sunrise is 45 minutes later at 8:22 AM on October 31.
The latest sunset is 7:15 PM on October 1 and the earliest sunset is 56 minutes earlier at 6:18 PM on October 31.
Daylight saving time is observed in Kalispell during 2020, but it neither starts nor ends during October, so the entire month is in daylight saving time.
For reference, on June 20, the longest day of the year, the Sun rises at 5:36 AM and sets 16 hours, 5 minutes later, at 9:41 PM, while on December 21, the shortest day of the year, it rises at 8:25 AM and sets 8 hours, 21 minutes later, at 4:45 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in October
The chance that a given day will be muggy in Kalispell is essentially constant during October, remaining around 0% throughout.
For reference, on July 26, 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 October
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Kalispell is essentially constant during October, remaining within 0.1 miles per hour of 4.2 miles per hour throughout.
For reference, on April 18, the windiest day of the year, the daily average wind speed is 4.7 miles per hour, while on January 5, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.
Average Wind Speed in October
The hourly average wind direction in Kalispell throughout October is predominantly from the west, with a peak proportion of 51% on October 4.
Wind Direction in October
The growing season in Kalispell typically lasts for 4.1 months (126 days), from around May 18 to around September 21, rarely starting before April 30 or after June 6, and rarely ending before September 4 or after October 9.
The month of October in Kalispell 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 24% to -0% 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 Kalispell are gradually increasing during October, increasing by 54°F, from 1,742°F to 1,796°F, over the course of the month.
Growing Degree Days in October
The average daily incident shortwave solar energy in Kalispell is rapidly decreasing during October, falling by 1.7 kWh, from 3.8 kWh to 2.1 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 Kalispell are 48.196 deg latitude, -114.313 deg longitude, and 2,949 ft elevation.
The topography within 2 miles of Kalispell contains significant variations in elevation, with a maximum elevation change of 719 feet and an average elevation above sea level of 2,963 feet. Within 10 miles contains significant variations in elevation (2,858 feet). Within 50 miles contains large variations in elevation (7,936 feet).
The area within 2 miles of Kalispell is covered by sparse vegetation (49%) and artificial surfaces (36%), within 10 miles by sparse vegetation (48%) and cropland (18%), and within 50 miles by trees (46%) and shrubs (24%).
This report illustrates the typical weather in Kalispell 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Kalispell.
For each station, the records are corrected for the elevation difference between that station and Kalispell 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 Kalispell is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Kalispell and a given station.
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.
Time zones for aiports and weather stations are provided by AskGeo.com .