Average Weather in October in Sac City Iowa, United States
Daily high temperatures decrease by 15°F, from 70°F to 55°F, rarely falling below 39°F or exceeding 83°F.
Daily low temperatures decrease by 11°F, from 48°F to 36°F, rarely falling below 24°F or exceeding 60°F.
For reference, on July 5, the hottest day of the year, temperatures in Sac City typically range from 65°F to 84°F, while on January 20, the coldest day of the year, they range from 13°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
Almaty, Kazakhstan (6,503 miles away); Yinchuan, China (6,698 miles); and Kujang-ŭp, North Korea (6,206 miles) are the far-away foreign places with temperatures most similar to Sac City (view comparison).
The month of October in Sac City experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 34% to 45%.
The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 66% of the time.
For reference, on February 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 55%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
Cloud Cover Categories in October
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Sac City, the chance of a wet day over the course of October is very rapidly decreasing, starting the month at 27% and ending it at 16%.
For reference, the year's highest daily chance of a wet day is 43% on June 7, and its lowest chance is 8% on January 11.
Over the course of October in Sac City, the chance of a day with only rain decreases from 27% to 14%, 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 0% throughout.
Probability of Precipitation in October
The average sliding 31-day rainfall during October in Sac City is rapidly decreasing, starting the month at 2.5 inches, when it rarely exceeds 4.3 inches or falls below 0.8 inches, and ending the month at 1.4 inches, when it rarely exceeds 2.8 inches or falls below 0.3 inches.
Average Monthly Rainfall in October
Over the course of October in Sac City, 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, 22 minutes, implying an average daily decrease of 2 minutes, 44 seconds, and weekly decrease of 19 minutes, 9 seconds.
The shortest day of the month is October 31, with 10 hours, 22 minutes of daylight and the longest day is October 1, with 11 hours, 44 minutes of daylight.
Hours of Daylight and Twilight in October
The earliest sunrise of the month in Sac City is 7:17 AM on October 1 and the latest sunrise is 35 minutes later at 7:52 AM on October 31.
The latest sunset is 7:01 PM on October 1 and the earliest sunset is 47 minutes earlier at 6:14 PM on October 31.
Daylight saving time is observed in Sac City 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 5:42 AM and sets 15 hours, 18 minutes later, at 9:00 PM, while on December 21, the shortest day of the year, it rises at 7:46 AM and sets 9 hours, 4 minutes later, at 4:50 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in October
The chance that a given day will be muggy in Sac City is gradually decreasing during October, falling from 3% to 0% over the course of the month.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 51% of the time, while on November 15, 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 Sac City is gradually increasing during October, increasing from 11.0 miles per hour to 11.6 miles per hour over the course of the month.
For reference, on April 12, the windiest day of the year, the daily average wind speed is 13.4 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.5 miles per hour.
Average Wind Speed in October
Wind Direction in October
The growing season in Sac City typically lasts for 5.6 months (171 days), from around April 22 to around October 10, rarely starting before April 3 or after May 13, and rarely ending before September 23 or after October 29.
During October in Sac City, the chance that a given day is within the growing season is very rapidly decreasing falling from 73% to 8% 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 Sac City are gradually increasing during October, increasing by 175°F, from 3,011°F to 3,186°F, over the course of the month.
Growing Degree Days in October
The average daily incident shortwave solar energy in Sac City is decreasing during October, falling by 1.5 kWh, from 4.3 kWh to 2.8 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 Sac City are 42.422 deg latitude, -94.990 deg longitude, and 1,243 ft elevation.
The topography within 2 miles of Sac City contains only modest variations in elevation, with a maximum elevation change of 128 feet and an average elevation above sea level of 1,239 feet. Within 10 miles also contains only modest variations in elevation (312 feet). Within 50 miles contains only modest variations in elevation (636 feet).
The area within 2 miles of Sac City is covered by cropland (91%), within 10 miles by cropland (99%), and within 50 miles by cropland (98%).
This report illustrates the typical weather in Sac City 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 Sac City.
For each station, the records are corrected for the elevation difference between that station and Sac City 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 Sac City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Sac City and a given station.
The stations contributing to this reconstruction are: Storm Lake Municipal Airport (46%, 28 kilometers, northwest); Arthur N Neu Airport (24%, 45 kilometers, south); Denison Municipal Airport (16%, 58 kilometers, southwest); and Fort Dodge Municipal Airport (13%, 68 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .