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Duluth, MN Weather on August 17
August 17th in Duluth, MN typically brings pleasant summer weather, with average highs around 74°F and lows near 58°F. Over 55 years of records, the warmest August 17th was in 2021 (78°F average), while the coldest was 1994 (54°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 15% of August 17th dates historically, with the wettest August 17th recording 1.04" of rain. The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
What to Expect on August 17
Planning for August 17th in Duluth, MN? Great weather for outdoor activities.
August 17 Weather Records for Duluth
- •The all-time record high for August 17th in Duluth, MN is 91°F, set in 2021.
- •The coldest August 17th on record dropped to 34°F in 2002.
- •Temperatures have reached 90°F or higher on August 17th in 3 of the last 55 years.
Frequently Asked Questions
What was the warmest August 17 ever in Duluth?
The warmest August 17 in Duluth, MN reached 91°F in 2021. That is 17°F above the long-term average high of 74°F.
What was the coldest August 17 ever in Duluth?
The coldest August 17 in Duluth, MN dropped to 34°F in 2002. That is 24°F below the long-term average low of 58°F.
What is the average temperature on August 17 in Duluth?
On August 17, Duluth averages a high of 74°F and a low of 58°F based on 55 years of NOAA weather observations from DULUTH HARBOR STN.
How many years of weather data are available for August 17 in Duluth?
We have 55 years of weather records for August 17 in Duluth, MN, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 17 Weather History in Duluth
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 66°F | 61°F | 0" | -- |
| 2024 | 75°F | 65°F | 0" | -- |
| 2023 | 74°F | 60°F | 0" | -- |
| 2022 | 77°F | 59°F | 0.54" | -- |
| 2021 | 91°F | 65°F | 0" | -- |
| 2020 | 75°F | 61°F | 0" | -- |
| 2019 | 85°F | 59°F | 0" | -- |
| 2018 | 76°F | 58°F | 0" | -- |
| 2017 | 67°F | 61°F | 0.53" | -- |
| 2016 | 86°F | 62°F | 0" | -- |
| 2015 | 75°F | 63°F | 0" | -- |
| 2014 | 65°F | 58°F | 0.8" | -- |
| 2013 | 83°F | 56°F | 0" | -- |
| 2012 | 70°F | 55°F | 0" | -- |
| 2011 | 80°F | 61°F | 0" | -- |
| 2010 | 75°F | 52°F | 0" | -- |
| 2009 | 78°F | 56°F | 0" | -- |
| 2008 | 91°F | 62°F | 0" | -- |
| 2007 | 72°F | 48°F | 0" | -- |
| 2006 | 79°F | 65°F | 0" | -- |
| 2005 | 64°F | 59°F | 0" | -- |
| 2004 | 69°F | 60°F | -- | -- |
| 2003 | 91°F | 52°F | -- | -- |
| 2002 | 80°F | 34°F | -- | -- |
| 2001 | 72°F | 59°F | -- | -- |
| 2000 | 66°F | 59°F | -- | -- |
| 1999 | 80°F | 57°F | -- | -- |
| 1998 | 83°F | 63°F | -- | -- |
| 1997 | 60°F | 55°F | -- | -- |
| 1996 | 78°F | 58°F | -- | -- |
| 1995 | 70°F | 62°F | -- | -- |
| 1994 | 57°F | 52°F | -- | -- |
| 1993 | 68°F | 53°F | 0" | -- |
| 1992 | 76°F | 60°F | 0" | -- |
| 1991 | 79°F | 65°F | 0" | -- |
| 1990 | 76°F | 64°F | 0" | -- |
| 1989 | 67°F | 58°F | 0" | -- |
| 1988 | 75°F | 62°F | 0" | -- |
| 1987 | 74°F | 60°F | 0" | -- |
| 1986 | 76°F | 63°F | 0" | -- |
| 1985 | 76°F | 43°F | 0.14" | -- |
| 1984 | 77°F | 58°F | 0" | -- |
| 1983 | 72°F | 67°F | 0" | -- |
| 1982 | 75°F | 64°F | 0" | -- |
| 1981 | 72°F | 56°F | 0" | -- |
| 1980 | 63°F | 58°F | 0.39" | -- |
| 1979 | 60°F | 54°F | 0" | -- |
| 1978 | 74°F | 60°F | 0.1" | -- |
| 1977 | 63°F | 49°F | 0" | -- |
| 1976 | 70°F | 53°F | 0" | -- |
| 1975 | 68°F | 56°F | 0" | -- |
| 1974 | 78°F | 61°F | 0.01" | -- |
| 1973 | 69°F | 62°F | 0" | -- |
| 1972 | 89°F | 58°F | 0" | -- |
| 1971 | 77°F | 56°F | 1.04" | -- |
Based on 55 years of data from NOAA station: DULUTH HARBOR STN
Monthly Climate Averages
Historical temperature and precipitation averages for Duluth, MN, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.