Average Weather in July in Billings Montana, United States
In Billings, the month of July is characterized by gradually rising daily high temperatures, with daily highs increasing by 4°F, from 86°F to 89°F over the course of the month, and rarely exceeding 98°F or dropping below 75°F. The highest daily average high temperature is 90°F on July 27.
Daily low temperatures increase by 3°F, from 59°F to 63°F, rarely falling below 52°F or exceeding 70°F. The highest daily average low temperature is 63°F on July 28.
For reference, on July 27, the hottest day of the year, temperatures in Billings typically range from 63°F to 90°F, while on January 1, the coldest day of the year, they range from 20°F to 36°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
The month of July in Billings experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 29% to 24%. The lowest chance of overcast or mostly cloudy conditions is 23% on July 26.
The clearest day of the month is July 26, with clear, mostly clear, or partly cloudy conditions 77% of the time.
For reference, on March 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on July 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.
Cloud Cover in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Billings, the chance of a wet day over the course of July is rapidly decreasing, starting the month at 19% and ending it at 13%.
For reference, the year's highest daily chance of a wet day is 29% on June 7, and its lowest chance is 4% on February 8.
Probability of Precipitation in July
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during July in Billings is gradually decreasing, starting the month at 1.1 inches, when it rarely exceeds 2.4 inches or falls below 0.3 inches, and ending the month at 0.7 inches, when it rarely exceeds 1.6 inches.
Average Monthly Rainfall in July
Over the course of July in Billings, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 52 minutes, implying an average daily decrease of 1 minute, 44 seconds, and weekly decrease of 12 minutes, 5 seconds.
The shortest day of the month is July 31, with 14 hours, 47 minutes of daylight and the longest day is July 1, with 15 hours, 39 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Billings is 5:28 AM on July 1 and the latest sunrise is 28 minutes later at 5:56 AM on July 31.
The latest sunset is 9:07 PM on July 1 and the earliest sunset is 24 minutes earlier at 8:43 PM on July 31.
Daylight saving time is observed in Billings during 2017, 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 5:24 AM and sets 15 hours, 43 minutes later, at 9:07 PM, while on December 21, the shortest day of the year, it rises at 7:52 AM and sets 8 hours, 40 minutes later, at 4:32 PM.
Sunrise & Sunset with Twilight in July
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The chance that a given day will be muggy in Billings is essentially constant during July, remaining around 0% throughout.
For reference, on July 12, 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 July
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Billings is essentially constant during July, remaining within 0.1 miles per hour of 4.0 miles per hour throughout.
For reference, on January 18, the windiest day of the year, the daily average wind speed is 5.8 miles per hour, while on July 29, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.
The lowest daily average wind speed during July is 3.9 miles per hour on July 30.
Average Wind Speed in July
Wind Direction in July
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy in Billings is essentially constant during July, remaining within 0.2 kWh of 7.4 kWh throughout.
The highest average daily incident shortwave solar energy during July is 7.6 kWh on July 3.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Billings are 45.783 deg latitude, -108.501 deg longitude, and 3,182 ft elevation.
The topography within 2 miles of Billings contains significant variations in elevation, with a maximum elevation change of 541 feet and an average elevation above sea level of 3,176 feet. Within 10 miles contains significant variations in elevation (1,079 feet). Within 50 miles contains very significant variations in elevation (6,047 feet).
The area within 2 miles of Billings is covered by artificial surfaces (60%) and shrubs (33%), within 10 miles by grassland (60%) and cropland (15%), and within 50 miles by grassland (66%) and shrubs (17%).
This report illustrates the typical weather in Billings 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 Billings.
For each station, the records are corrected for the elevation difference between that station and Billings 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 Billings is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Billings and a given station.
The stations contributing to this reconstruction are: Logan International Airport (93%, 4.2 kilometers, northwest); South Big Horn County Airport (2.4%, 145 kilometers, south); Yellowstone Regional Airport (2.2%, 147 kilometers, south); and Sheridan County Airport (2.0%, 165 kilometers, southeast).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
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.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.