Average Weather in July in Spirit Lake Iowa, United States
Daily high temperatures are around 82°F, rarely falling below 73°F or exceeding 91°F. The highest daily average high temperature is 83°F on July 9.
Daily low temperatures are around 63°F, rarely falling below 53°F or exceeding 72°F. The highest daily average low temperature is 63°F on July 18.
For reference, on July 5, the hottest day of the year, temperatures in Spirit Lake typically range from 63°F to 83°F, while on January 15, the coldest day of the year, they range from 9°F to 25°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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 July
Volgograd, Russia (5,622 miles away); Almaty, Kazakhstan (6,435 miles); and Jiuquan, China (6,635 miles) are the far-away foreign places with temperatures most similar to Spirit Lake (view comparison).
The month of July in Spirit Lake experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 32% to 27%. The lowest chance of overcast or mostly cloudy conditions is 27% on July 28.
The clearest day of the month is July 28, with clear, mostly clear, or partly cloudy conditions 73% of the time.
For reference, on February 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.
Cloud Cover Categories in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Spirit Lake, the chance of a wet day over the course of July is decreasing, starting the month at 38% and ending it at 33%.
For reference, the year's highest daily chance of a wet day is 41% on June 7, and its lowest chance is 7% on February 12.
Probability of Precipitation in July
The average sliding 31-day rainfall during July in Spirit Lake is decreasing, starting the month at 3.9 inches, when it rarely exceeds 6.9 inches or falls below 1.5 inches, and ending the month at 3.2 inches, when it rarely exceeds 5.4 inches or falls below 1.3 inches.
Average Monthly Rainfall in July
Over the course of July in Spirit Lake, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 47 minutes, implying an average daily decrease of 1 minute, 33 seconds, and weekly decrease of 10 minutes, 53 seconds.
The shortest day of the month is July 31, with 14 hours, 35 minutes of daylight and the longest day is July 1, with 15 hours, 21 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Spirit Lake is 5:43 AM on July 1 and the latest sunrise is 26 minutes later at 6:09 AM on July 31.
The latest sunset is 9:04 PM on July 1 and the earliest sunset is 21 minutes earlier at 8:43 PM on July 31.
Daylight saving time is observed in Spirit Lake during 2018, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:39 AM and sets 15 hours, 25 minutes later, at 9:04 PM, while on December 21, the shortest day of the year, it rises at 7:49 AM and sets 8 hours, 57 minutes later, at 4:47 PM.
Sunrise & Sunset with Twilight in July
The chance that a given day will be muggy in Spirit Lake is rapidly increasing during July, rising from 27% to 38% over the course of the month.
The highest chance of a muggy day during July is 39% on July 21.
For reference, on July 21, the muggiest day of the year, there are muggy conditions 39% 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 July
The average hourly wind speed in Spirit Lake is decreasing during July, decreasing from 9.9 miles per hour to 8.8 miles per hour over the course of the month.
For reference, on April 8, the windiest day of the year, the daily average wind speed is 13.7 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.7 miles per hour.
Average Wind Speed in July
Wind Direction in July
The growing season in Spirit Lake typically lasts for 5.2 months (157 days), from around April 28 to around October 2, rarely starting before April 10 or after May 16, and rarely ending before September 14 or after October 20.
The month of July in Spirit Lake is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in July
The average accumulated growing degree days in Spirit Lake are rapidly increasing during July, increasing by 652°F, from 994°F to 1,647°F, over the course of the month.
Growing Degree Days in July
The average daily incident shortwave solar energy in Spirit Lake is essentially constant during July, remaining within 0.2 kWh of 6.9 kWh throughout.
The highest average daily incident shortwave solar energy during July is 7.1 kWh on July 8.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Spirit Lake are 43.422 deg latitude, -95.102 deg longitude, and 1,434 ft elevation.
The topography within 2 miles of Spirit Lake is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 1,433 feet. Within 10 miles is essentially flat (217 feet). Within 50 miles contains only modest variations in elevation (797 feet).
The area within 2 miles of Spirit Lake is covered by cropland (51%), artificial surfaces (27%), and water (20%), within 10 miles by cropland (87%), and within 50 miles by cropland (98%).
This report illustrates the typical weather in Spirit Lake 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 Spirit Lake.
For each station, the records are corrected for the elevation difference between that station and Spirit Lake 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 Spirit Lake is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Spirit Lake and a given station.
The stations contributing to this reconstruction are: Jackson Municipal Airport (31%, 27 kilometers, north); Estherville Municipal Airport (28%, 29 kilometers, east); Spencer Municipal Airport (27%, 30 kilometers, south); and Worthington Municipal Airport (14%, 46 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .