This figure shows the average surface water temperatures in each of the Great Lakes, as measured by satellites. Mortsch, M. Brklacich, D.L., 7Wilcox, D.A, T.A. In Lake Superior, researchers at the University of Minnesota Duluth have found that summer surface water temperatures have increased by 5 degrees over the past 30 years. ), Lower water levels in Lake Superior. At 18.20°C | 64.76°F, the average monthly water temperature reaches its highest value in the year in August. Internat Assoc. Lake Superior's ice cover is diminishing. Current conditions, warnings and historical records ... Average Low 2010–Present 36.2 °F; Average 2010–Present 44.2 °F; Average High 2010–Present 52.3 °F; Get an account to remove ads., 3Desai, A.R., J.A. Whereas in February the lowest value is measured with about 1.10°C | 33.98°F. NOAA weather radar, satellite and synoptic charts., 31 West College Street    Duluth, MN 55812    (218) 726-8106. Virginia Running, and M.J. Scott. Two Harbors The variation in the precipitation between the driest and wettest months is 81 mm | 3 inch. Hermantown This seems to be the case for Lake Superior and Lake Huron. © 1996 – 2020 Regents of the University of Minnesota 9U.S. Water temperatures on …, 4Field, C.B., L.D. Climate change will tend to amplify existing risks that impact people, ecosystems, and infrastructure. Accessed 2/8/10. Average water temperature in Lake Superior in August is 16.5°C/61.7°F and therefore is not suitable for comfortable swimming. Regional climate change adaptation strategies for biodiversity conservation in a midcontinental region of North America. Current water temperature Lake Superior Limnol. Occasional wave height is the average of the highest 1/10 of the wave spectrum. ), Warmer winters. 2009. With an average annual water temperature of 45°F (7°C), Lake Superior moderates the climate, making winters warmer and summers cooler. U.S. Army Corps of Engineers-Detroit District,,,,,, Non-linked temperatures in the monthly columns are average water temperatures. Increased climate variability and extremes. Winter months average high temperatures of about 25°F (-4°C) and summer months average about 70°F (22°C). Forbes, P. Kovacs, J.A. The mean minimum temperature will be -3°C, dipping to its lowest on the morning of Monday 30th at -8°C. An average of 7.00°C | 44.60°F water temperatures is reached in Superior (Lake Superior) over the year. With field data in hand and computers crunching numbers, it's becoming obvious that Lake Superior is responding to global climate shifts as clearly as anywhere on Earth. The graphs on the left show annual averages for the full time period, while the graphs on the right show how average daily temperatures have changed between two time periods for comparison: 2006–2015 versus 1995–2004. 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. These proxy records suggest that severe droughts, larger than any observed in the past century, occurred several times in the last few thousand years and had large and long-lasting ecological effects.7 Similarly, prolonged high water levels in the Great Lakes (highstands) have been linked to climate variability. Patz, S.W. Oceanogr. Thunder Bay Ont. 1, 2. Austin, V. Bennington, and G.A. For all sorts of lake-relatved recreation such as swimming boating,and fishing, this site provides mathematically generated instantaneous and 5-day predictions of lake surface water temperatures. and S.M. The outlook for Lake Superior Duluth in the two weeks ahead shows the average daytime maximum temperature will be around 1°C, with a high for the two weeks of 4°C expected on the afternoon of Saturday 5th. Scientists believe the faster winds could accelerate the speed of Lake Superior’s water currents, which in turn could affect the aquatic food web.3, Lake Superior's summer stratification season is longer. Lake-level variability and water availability in the Great Lakes: U.S. Geological Survey Circular 1311, 25 p. (Complete List of Average Temperatures) Use the near real-time water temperature data with discretion, because they may contain errors. 2007. Great Lakes Marine Weather Portal - Includes point forecasts. Thompson, R.K. Booth, and J.R. Nicholas. The surface water temperature of Lake Ontario continues to remain above average, having hit 73.814 degrees Fahrenheit on Aug. 20. Monthly: 1981-2010 normals History: 2007-2019 (Minimum or 'overnight low' temperatures have been rising faster than the maximum temperature. McKinley. Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (M.L. Web page accessed 8/10. Great Lakes CoastWatch is a nationwide National Oceanic and Atmospheric Administration (NOAA) program within which the Great Lakes Environmental Research Laboratory (GLERL) functions as the Great Lakes regional node. Lake Superior is the largest freshwater lake in the world in area and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa. Great Lakes Water Level Data. The average water temperature in Lake Superior in winter reaches 3°C/37.4°F, in spring 2°C/35.6°F, in summer the average temperature rises to 10°C/50°F, and in autumn it is 10°C/50°F. Lake Superior average water temperature this … Lake Superior's surface water temperature in summer has warmed twice as much as the air above it since 1980. Marine Weather for Canada. These impacts are particularly concerning to the region because a major component of the regi… The average temperature in Great Lake Superior in November is -1°.The average temperature ranges is 6° in the previous month and -9° in the next month.. Silver Bay, © / AM OP / OpenStreetMap contributors, Superior Weather by month // weather averages, Superior Climate graph // Weather by Month. The Area of Superior is roughly 143.29 km² (55.32 mi²) That is 9.72 degrees above the average temperature for July 10 from 1995 to 2020 and constitutes the warmest surface water temperature ever recorded on Lake Ontario, according to NOAA CoastWatch data. In the summer, however, the temperature can reach eighty degrees, making it possible to swim in the lake for those who like a rather bracing swim in fresh water! The average minimum temperature in Great Lake Superior in November is -4°. Nature Geosci. The area covered by ice each winter is decreasing by about 0.5% per year.1 Ice cover in Lake Superior has decreased from 23% to 12% over the last century.2, Wind speeds over Lake Superior are increasing. Duluth gets an average of 52 days of … In winter it can dip below minus thirty degrees, making it too cold to swim in but beautiful to observe.     (Even for scenarios that forecast increases in precipitation, most climate models predict lower water levels for Lake Superior because of increased evaporation.). Hibbing Colman. 2008. Proc., p. 181-197. The lowest average temperatures in the year occur in January, when it is around -12.2 °C | 10.0 °F. Clicking on the hyperlinked "Recent Temperatures" will display station information for the location. The least amount of rainfall occurs in February., 6Zandlo, J., modified 3/13/08. The average water temperature now is 76 degrees, with the long-term average water temperature at 70 for this date. Per decade since 1980, surface water temperature in summer has increased about 2 °F (1 °C), while regional air temperature has increased 1 °F (0.5 °C).1,2, Lake Superior's ice cover is diminishing. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Lake Superior weather forecast updated daily. 2007. The temperatures are highest on average in July, at around 19.1 °C | 66.4 °F. The high water level in October of 1985 was 3.9 feet (1.19 m) above a low in March of 1926.9. The effects of increased heat stress, flooding, drought, and late spring freezes may be magnified by other changes, such as a change in the prevalence of diseases and pests, increased competition from invasive species, land use change, an increase in air pollution, and economic shocks from extreme weather events. 2009. Parry, O.F. The Superior is an city of the United States in the Region Wisconsin of the Country United States of America, Hinckley (Winter temperatures have been rising about twice as fast as annual average temperatures. The effect is strongest when the wind blows off the water, and is most pronounced on the lake shore and on slopes that face the lake. The Lake Superior surface water temperature high in 2018, which occurred in mid-August, was 17 °C. Whereas in February the lowest value is measured with about 1.10°C | 33.98°F. ), Similar winter precipitation. Climate Change 2007: Impacts, Adaptation and Vulnerability. Weather and Climate Lake Superior greatly moderates temperature extremes, preventing deep cold during most of the winter, slowing spring warming, and keeping summers somewhat cooler overall. Hanson, Eds.) Lake Superior Temperatures. Superior is located near a large body of water (e.g., ocean, sea, or large lake). Station Data. Great Lakes Research.. 12th Conf., Ann Arber. The sun-warmed upper layer extends farther into the water column, making fall mixing later.1 The length of the positively stratified season has increased from 145 to 170 days over the last century.2. Warmer nights. Between late spring and late fall, the shore can be shrouded in fog when inland areas bask in sunshine. Temperature prediction accuracy is expected to range between 1 to 3 degrees Fahrenheit. Drier summers (reduction in soil moisture). In its geologically short life (less than 10,000 years), Lake Superior has been about 450 feet (137.16 m) higher than it is today.8 Around 1300 years ago, it seems Lake Superior completely separated from Lakes Michigan and Huron.7 As shown on the graph below, over the last 100 years, Lake Superior has fluctuated about 2.5 feet (0.8 m). The average in this month is 16 mm | 0.6 inch. The Caspian Sea, while larger than Lake Superior in both surface area and volume, is brackish; though presently isolated, prehistorically the Caspian has been repeatedly connected to and then isolated from the Mediterranean via the Black Sea. Nearshore Marine Forecasts. 8Farrand, W.R. 1969. The western Lake Superior Buoys are maintained by the University of Minnesota Duluth Large Lakes Observatory, with funding from the Great Lakes Observing System. Lake Superior empties into Lake Huron via the St. Marys River and the Soo Locks. Lake Superior boasts extremely clear water, with an average underwater visibility of 27 feet (8.2 m). Stronger winds over a large lake in response to weakening air-to-lake temperature gradient. Monthly averages Duluth Longitude: -92.1936, Latitude: 46.8421 Average weather Duluth, MN - 55811. Spring turnover has become earlier by about 1/2 day per year, leading to earlier summer stratification. Temperature and precipitation statistics for selected towns in the Lake Superior Basin. An average of 7.00°C | 44.60°F water temperatures is reached in Superior (Lake Superior) over the year. Per decade since 1980, surface water temperature in summer has increased about 2 °F (1 °C), while regional air temperature has increased 1 °F (0.5 °C). The University of Minnesota is an equal opportunity educator and employer. 1Austin, J.A. With 18.20°C | 64.76°F, the water temperature reaches its highest value in the year around August 16. Cambridge University Press, Cambridge, UK, 617-652., 5Galatowitsch, S., L. Frelich, and L. Phillips-Mao. The greatest amount of precipitation occurs in August, with an average of 97 mm | 3.8 inch. Although the details of regional climate predictions are still crude and model-dependent, it seems likely that around Lake Superior people should expect: Proxy records of past climate variability in the Great Lakes region have been developed from tree rings, dune soils, and the sediments of small lakes and wetlands. and S.M., 2Austin, J.A. Throughout the year, the water temperature of lake superior averages at 40 degrees Farenheit. The Quaternary history of Lake Superior. Since 1985, wind speeds have increased by nearly 5% per decade, exceeding trends over land. Lake Superior, the deepest lake with by far the highest volume of water, is not as warm as the other Great Lakes, but still is running over 6 degrees above average. The data in this graph originated from the U.S. Army Corps of Engineers-Detroit District. This is a degree above the long-term average surface water temperature high of 16 °C; it also took place a couple of weeks earlier than the long-term average high, which occurs in early September. At 18.20°C | 64.76°F, the average monthly water temperature reaches its highest value in the year in August. Annual Temperature for Great Lake Superior The hottest month in Great Lake Superior is August when the average maximum temperature is 20°, average temperature is 16° and average minimum temperature is 12°.     These warm-season fogs occur when moisture in the warm air condenses as it flows over the cold lake. The established average water surface temperature for Lake Superior this time of year is 56°F (13.4°C). Lake Superior's surface water temperature in summer has warmed twice as much as the air above it since 1980. Lake Superior summer water temperatures are increasing more rapidly than regional air temperatures: A positive ice-albedo feedback, Geophys. Changes in the species composition of both terrestrial and aquatic ecosystems. Lake Superior water temperatures Current sea tmp: 7.4°C / 45.4°F Based on readings from Sault Sainte Marie Colman. The average maximum temperature in Great Lake Superior in November is 2°.The average maximum temperature is 10° in the previous month and -5° in the next month.. Get the monthly weather forecast for Superior, WI, including daily high/low, historical averages, to help you plan ahead. They operate during the ice-free months each year, and are typically deployed in … Biological Conservation 142: 2012–2022. Duluth Proctor North America. Experimental Modernized Open Lake Forecast for Lake Superior. Regional Temperatures from Around the Lake. Whereas around February 26, the lowest value is around 1.10°C | 33.98°F. 2: 855–858. Canziani, J.P. Palutikof, P.J. weather station: 199 m.a.s.l., 153.0 km away from Lake Superior North Shore Conservation Reserve Average temperature per month Graph explanation. Army Corps of Engineers - Detroit District. Lett., 34, L06604, doi:10.1029/2006GL029021. Get the monthly weather forecast for Lake Superior Estates, MI, including daily high/low, historical averages, to help you plan ahead. A century of temperature variability in Lake Superior. van der Linden and C.E. The variation in temperatures throughout the year is 31.3 °C | 88.3 °F. Great Lakes Open Lake forecasts are subdivided by zone, each identified by text description and a Universal Generic Code (UGC). The average water temperature experiences significant seasonal variation over the course of the year. Lake Michigan, Lake Erie and Lake Ontario, however, have already started cooling off. This section reports on the wide-area average surface temperature of that water. Armstrong, ON Ashland, WI Atikokan, ON Bemidji, MN Chapleau, ON Cloquet, MN Cook, MN Copper Harbor, MI The closest Ocean of Superior is Lake Superior with roughly 2.65km (1.65 in miles), The closest Airports of Superior are: Duluth International Airport (DLH) 14.37km,Range Regional Airport (HIB) 92.79km,Brainerd Lakes Regional Airport (BRD) 159.57km, You can reach Superior from this Cities by Plane: Las Vegas (LAS), Phoenix (AZA), The population of Superior is approximately 27244 2007. Climate Change and the Minnesota State Climatology Office: Observing the climate. Res. Open Lake Forecast for Lake Superior National Weather Service Marquette MI 1009 PM EST Sun Nov 29 2020 For waters beyond 5 nautical miles of shore on Lake Superior. Lake Superior’s average water temperature reached 55.8 degrees on July 8, over 6 degrees above normal. This page last modified on February 23, 2015 53, 2724–2730. (But more will fall as rain.
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