Knoxville, TN All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Knoxville, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 105°F (41°C) | June 30, 2012 and July 1, 2012 |
| Record Low | -23.9°F (-31°C) | January 21, 1985 |
| Lowest High | 10.9°F (-12°C) | January 8, 1970 |
| Highest Low | 80°F (27°C) | July 25, 2010 |
| Highest Mean | 90°F (32°C) | July 1, 2012 |
| Lowest Mean | -6.0°F (-21°C) | January 21, 1985 |
| Precipitation | ||
| Max in One Calendar Day | 5.75" (146.1 mm) | March 27, 1994 |
| Max in One Month | 13.08" (332.3 mm) | February 2019 |
| Least in One Month | 0.00" (0.0 mm) | October 2000 |
| Max in One Year | 69.39" (1762.4 mm) | 2013 |
| Least in One Year | 32.49" (825.2 mm) | 1986 |
| Snowfall | ||
| Max in One Calendar Day | 11.1" (28.2 cm) | March 13, 1993 |
| Max in One Month | 18.5" (46.9 cm) | February 1979 |
| Max in One Season | 24.6" (62.6 cm) | 1970-71 |
| Max in One Year | 23.8" (60.5 cm) | 1970 |
| Earliest Snow | 0.2" (0.5 cm) | November 8, 1991 |
| Earliest Measurable Snow | 0.2" (0.5 cm) | November 8, 1991 |
| Latest Snow | 2.0" (5.1 cm) | April 18, 1983 |
| Latest Measurable Snow | 2.0" (5.1 cm) | April 18, 1983 |
| Period of Record | ||
| Temperature | January 1, 1970 – August 1, 2026 | |
| Precipitation | January 1, 1970 – August 1, 2026 | |
| Snowfall | January 1, 1970 – August 1, 2026 | |
Note: Records compiled from NOAA GHCN-Daily observations at KNOXVILLE AP (16 mi from Knoxville, TN). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in Knoxville, TN?
The all-time record high in Knoxville, TN is 105°F (41°C), set on June 30, 2012 and July 1, 2012.
What is the coldest temperature ever recorded in Knoxville, TN?
The all-time record low in Knoxville, TN is -23.9°F (-31°C), set on January 21, 1985.
What is the most rain Knoxville, TN has ever had in one day?
The most precipitation recorded in one calendar day near Knoxville, TN is 5.75 inches, on March 27, 1994.
What is the biggest snowfall ever recorded in Knoxville, TN?
The most snow recorded in one calendar day near Knoxville, TN is 11.1 inches, on March 13, 1993.
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Knoxville Weather History
Monthly averages, records, and climate data for Knoxville
Tennessee Weather Extremes
Statewide records and extremes for other Tennessee cities