In Detroit, the chance of a wet day over the course of August is gradually decreasing, starting the month at 34% and ending it at 31%. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. 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. 36.3 °F: What's the Average Temperature in Michigan? The chance that a given day will be muggy in Detroit is rapidly decreasing during August, falling from 37% to 24% over the course of the month. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. Temperatures close to the shore have been measured higher than 80 degrees Fahrenheit (27 degrees Celsius and higher). The freeze-free period, or growing season, averages 107 days annually. The wind direction in Detroit during August is predominantly out of the west from August 1 to August 16 and the south from August 16 to August 31. 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. Climate divisions shown in white or very light colors had average temperatures near 50°F. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Michigan annual average temperature - 44.41 degrees, 40th warmest state in the U.S. Record Hottest year in Michigan - 1998 / Avg temperature 48.35 degrees; Record Coldest year in Michigan - 1917 / Avg temperature 40.92 degrees; Michigan average Summer temperature (June, July, August) 66.2 F degrees, 40th warmest U.S. summer state Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. Daily high temperatures decrease by 4°F, from 81°F to 77°F, rarely falling below 68°F or exceeding 89°F. Detroit Weather August Averages, USA. The black line is the percentage chance that a given day is within the growing season. Weather in Chicago is directly affected by Lake Michigan and can vary greatly month to month, season to season. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Daily high temperatures decrease by 4°F, from 81°F to 77°F, rarely falling below 68°F or exceeding 89°F. Water temperature throughout Lake Michigan is not yet warm enough for swimming and does not exceed 20°C/68°F. A climate graph showing rainfall, temperatures and normals. The coldest month is January with an average maximum temperature of 28°C (82°F). The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. 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. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Home > Climate Monitoring > State of the Climate > National Climate Report November Global Release: Mon, 14 Dec 2020, 11:00 AM EST National Climate Report - November 2020 An average of 9.20°C | 48.56°F water temperatures is reached in Torch Lake (Lake Michigan) over the year. The earliest sunrise of the month in Detroit is 6:25 AM on August 1 and the latest sunrise is 32 minutes later at 6:56 AM on August 31. Averages are for Kent County International Airport, which is 9 miles from Grand Rapids. Upper Peninsula Of Michigan Weather in January-February: With the air being damp (Humidity is 78%) and temperature being as low as 32℉, you can expect cold weather on your visit to Upper Peninsula Of Michigan in these months.The average temperature is 18℉.The average precipitation recorded around this time is 64.81 mm. Most of the Lower 48 can expect a warmer-than-average trend this summer, particularly by August. There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Michigan Center. Showing: All Year January February March April May June July August September October November December The growing season in Detroit typically lasts for 6.6 months (200 days), from around April 14 to around November 1, rarely starting before March 30 or after April 30, and rarely ending before October 13 or after November 19. The month of August in Detroit experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 33% throughout the month. In this report, we use a base of 50°F and a cap of 86°F. This map shows trends in unusually hot temperatures at individual weather stations that have operated consistently since 1948. For reference, on January 15, the windiest day of the year, the daily average wind speed is 13.0 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 7.9 miles per hour. The warmest water temperature in Lake Superior in August is 20.9°C/69.6°F, and the coldest water temperature in August is 10.2°C/50.4°F. Michigan Center is located near a large body of water (e.g., ocean, sea, or large lake). July is the hottest month for Grand Rapids with an average high temperature of 82.2°, which ranks it as warmer than most places in Michigan. The month with the warmest seawater in Mackinac Island, Michigan, is August, with an average ocean temperature of 60.8°F (16°C). Submitted by 2011 on August 18, 2020 - 6:45am. The average surface water temperature in Detroit is gradually decreasing during August, falling by 2°F, from 74°F to 72°F, over the course of the month. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The number of hours during which the Sun is visible (black line). The percentage of time spent in various temperature bands. These are the extremes in weather records for Michigan, a state in the Great Lakes region of the Midwestern United States. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Detroit. The highest average 31-day accumulation is 3.1 inches on August 4. Get the latest coronavirus (COVID-19) updates for the USA with current travel advice, statistics and online resources.. Below are average maximum temperatures at popular destinations in Michigan in August. The hourly average wind direction in Michigan Center throughout August is predominantly from the west, with a peak proportion of 38% on August 1. The percentage of time spent in various temperature bands. What is the rainiest month in Mackinac Island? The average hourly temperature, color coded into bands. The average maximum temperature is 25° in the previous month and 21° in the next month. Temperature 22 °C 72 °F; High Temperature 27 °C 81 °F; Low Temperature 17 °C 63 °F; Sunshine … The thin dotted line is the corresponding average liquid-equivalent snowfall. Detroit's coldest month is January when the average temperature overnight is 17.8°F. This report illustrates the typical weather in Michigan Center, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature In August, the average high-temperature is almost the same as in July - a still warm 73.6°F (23.1°C). Detroit is located near a large body of water (e.g., ocean, sea, or large lake). Average water temperature in Michigan City in August is 22.8°C/73°F and therefore suitable for comfortable swimming. In Mackinaw City, Michigan, in August, the average low-temperature is 50°F (10°C). This rainfall is typically spread over 9 days, although this may vary considerably. The stations contributing to this reconstruction are: Jackson County Airport (67%, 12 kilometers, west); Hillsdale Municipal Airport (11%, 41 kilometers, southwest); Lenawee County Airport (9%, 46 kilometers, southeast); Livingston County Spencer J. Hardy Airport (8%, 52 kilometers, northeast); and Willow Run Airport (5%, 65 kilometers, east). 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 . The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The latest sunset is 8:55 PM on August 1 and the earliest sunset is 44 minutes earlier at 8:11 PM on August 31. The figure below presents a compact representation of key lunar data for August 2020. Detroit August Weather Averages. 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. January February March April May June July August September October November December; Average Monthly high in °F: 31° 33° 43° 56° 67° 77° 81° 79° 72° 59° 47° The estimated value at Michigan Center is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Michigan Center and a given station. Average Weather in August in Michigan Center Michigan, United States. May is the most wet month. In July, the warmest month, the average day time temperature rises to 83.4°F. The state record low is −51 °F (−46 °C), recorded at Vanderbilt on February 9, 1934, while the state record high is 112 °F (44 ... August 31, 1914: Bloomingdale: Snow. For each station, the records are corrected for the elevation difference between that station and Michigan Center according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. 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. You can jump to a separate table for each region of the state: The Thumb & Southeast Michigan, West & Mid-Michigan, Northern Michigan and Upper Peninsula. The August weather guide for Alpena, Michigan shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute.Find out more about our data sources. . A climate chart for your city, indicating the monthly high temperatures and rainfall. The average accumulated growing degree days in Detroit are rapidly increasing during August, increasing by 658°F, from 1,830°F to 2,488°F, over the course of the month. Expect a wide diversity in temperatures and cloud cover throughout the year. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . August temperature forecast from the Climate … The estimated value at Detroit is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Detroit and a given station. For August, the contiguous U.S. average temperature was 73.9°F, 1.8°F above the 20th century average and tied with 1955 as the 13th warmest August on record. Key findings. Average Weather in August in Detroit Michigan, United States Clouds. August - Detroit Records 1874 - Present; August Normals (1980-2010) Maximum: Minimum: Average Daily Temperature: Precipitation: Date: Max: Min: Avg: Record High: Lowest Drought conditions worsened in some locations. 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