Rainfall totals Knoxville, TN
Through Oct 7, 2026, Knoxville has received 36.35 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 40.62 inches. The normal figure is what the city would typically have seen by this point in the calendar. This reading comes from the station gauge at KNOXVILLE MUNICIPAL in the National Weather Service's daily climate report.
as of
Data from Knoxville Airport, with records back to 1910. Across the record from 1910, 100 percent of days have a reading, with 100 percent in 2025.
Most recent rainfall
1.79 inches of rain fell on Oct 3, 2026, the latest measurable rainfall this year.
KNOXVILLE MUNICIPAL saw no measurable rain on Oct 7, 2026, according to the National Weather Service daily climate report.
Official rainfall report for Oct 7, 2026
| Measured | Normal | vs normal | |
|---|---|---|---|
| Rain on Oct 7, 2026 | 0.00 inches | 0.10 inches | -0.10 inches |
| Last 48 hours | 0.00 inches | ||
| Last 72 hours | 0.00 inches | ||
| Last 7 days | 1.87 inches | ||
| Month to date | 1.87 inches | 0.71 inches | +1.16 inches (+163%) |
| Year to date | 36.35 inches | 40.62 inches | -4.27 inches (-11%) |
| Record for Oct 7 | 2.39 inches | 2021 |
Source: National Weather Service daily climate report for KNOXVILLE MUNICIPAL, issued the morning after Oct 7, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.
How much rain did Knoxville get?
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Oct 3, 2026 | 1.79 inches |
| Oct 2, 2026 | 0.08 inches |
| Sep 24, 2026 | 0.02 inches |
| Sep 23, 2026 | 1.18 inches |
| Sep 22, 2026 | 0.27 inches |
| Sep 20, 2026 | 0.01 inches |
| Sep 12, 2026 | 0.30 inches |
| Sep 7, 2026 | 0.15 inches |
| Sep 5, 2026 | 0.06 inches |
| Aug 21, 2026 | 0.58 inches |
| Aug 20, 2026 | 0.25 inches |
| Aug 17, 2026 | 1.69 inches |
| Aug 11, 2026 | 0.52 inches |
| Aug 8, 2026 | 0.01 inches |
| Aug 7, 2026 | 0.80 inches |
| Aug 5, 2026 | 0.01 inches |
| Aug 4, 2026 | 0.03 inches |
| Aug 3, 2026 | 0.04 inches |
| Aug 2, 2026 | 0.78 inches |
| Aug 1, 2026 | 0.68 inches |
| Jul 28, 2026 | 0.12 inches |
| Jul 27, 2026 | 0.01 inches |
| Jul 24, 2026 | 0.17 inches |
| Jul 23, 2026 | 0.63 inches |
| Jul 22, 2026 | 1.47 inches |
| Jul 17, 2026 | 0.07 inches |
| Jul 13, 2026 | 0.03 inches |
| Jul 12, 2026 | 1.88 inches |
| Jul 11, 2026 | 0.08 inches |
| Jul 10, 2026 | 0.01 inches |
With 1.99 inches on Jun 28, 2026, this is the 218th wettest of the 14,849 measurable rain days in the Knoxville Airport record, which begins in 1910.
Through Oct 3, 2026, the GHCN-Daily station record shows 36.35 inches of measurable rain so far this year, falling over a 93-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
Knoxville rainfall by month, 2026
| Month | Rainfall | Normal | vs normal |
|---|---|---|---|
| January | 3.87 inches | 4.76 inches | -0.89 inches (-19%) |
| February | 3.74 inches | 4.81 inches | -1.07 inches (-22%) |
| March | 3.27 inches | 4.89 inches | -1.62 inches (-33%) |
| April | 3.00 inches | 4.71 inches | -1.71 inches (-36%) |
| May | 4.67 inches | 4.13 inches | +0.54 inches (+13%) |
| June | 4.01 inches | 4.24 inches | -0.23 inches (-5%) |
| July | 4.54 inches | 5.25 inches | -0.71 inches (-14%) |
| August | 5.39 inches | 3.63 inches | +1.76 inches (+48%) |
| September | 1.99 inches | 3.49 inches | -1.50 inches (-43%) |
| October | 1.87 inches | 2.81 inches |
October is still in progress; figures run through Oct 3, 2026. Averages are 1991-2020 normals from NCEI.
Rainfall days at each threshold in Knoxville
| Year | 0.5+ in. | 1+ in. | 2+ in. | 3+ in. |
|---|---|---|---|---|
| 2025 | 37 | 11 | 1 | 0 |
| 2024 | 42 | 15 | 2 | 0 |
| 2023 | 34 | 11 | 4 | 0 |
| 2022 | 40 | 17 | 0 | 0 |
| 2021 | 31 | 13 | 2 | 0 |
| 2020 | 45 | 19 | 6 | 1 |
| 2019 | 41 | 17 | 4 | 2 |
| 2018 | 46 | 14 | 3 | 0 |
| 2017 | 36 | 12 | 3 | 0 |
| 2016 | 32 | 13 | 1 | 1 |
| Average | 33.8 | 12.1 | 1.9 | 0.4 |
A day counts when its rainfall total meets or passes the column amount, from Knoxville Airport records in GHCN-Daily. Every complete year starting with 1910 counts toward the average, 116 years in total.
Past rainfall years in Knoxville
All-time rainfall records
| Wettest day | 6.14 inches | Jul 16, 1917 |
|---|---|---|
| Wettest year | 69.35 inches | 2013 |
| Driest year | 32.48 inches | 1986 |
| Average year | 48.21 inches | 116 complete years on record |
| Rain days a year | 127 | average, 0.01 inch or more |
| Record begins | 1910 | 42,613 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 4.76 | 4.81 | 4.89 | 4.71 | 4.13 | 4.24 | 5.25 | 3.63 | 3.49 | 2.81 | 4.21 | 5.00 | 51.93 |
Averages are 1991-2020 normals from NCEI.
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.