How much rain fell in Knoxville, TN 37938 in the last 24 hours?

No measurable rain fell in Knoxville, TN 37938 over the last 24 hours (radar-measured, NOAA MRMS). The last measurable rain was on August 4, 2026.

How much rain has fallen in Knoxville, TN 37938 this year?

Knoxville, TN 37938 has recorded 37.35″ of rain year-to-date in 2026.

How much rain has Knoxville, TN 37938 had in the past 30 days?

Knoxville, TN 37938 has received 6.60″ of rain in the past 30 days (radar-measured).

When did it last rain in Knoxville, TN 37938?

The last measurable rain in Knoxville, TN 37938 was on August 4, 2026.

Rainfall · Last 24 hours

Knoxville, TN 37938

0.00″

NOAA MRMS radar in the last 24 hours

No measurable rain fell in ZIP 37938 over the last 24 hours (NOAA MRMS radar). The last measurable rain was on August 4, 2026.

0.00″

Past 24 hours

1.19″

Past 7 days

6.60″

Past 30 days

Rainfall this year

August so far

1.11″

Year to date 2026

37.35″

August so far: 1.11″ of the 5.21″ monthly normal, about 21% of typical. Last measurable rain: August 4, 2026.

Monthly rainfall trailing 12 months

Aug 2026 1.11″3 wet

Jul 2026 5.88″17 wet

Jun 2026 7.03″9 wet

May 2026 5.47″13 wet

Apr 2026 3.47″7 wet

Mar 2026 3.35″9 wet

Feb 2026 5.67″10 wet

Jan 2026 5.37″9 wet

Nov 2025 3.76″14 wet

Live rainfall tracking on your iPhone

Track rainfall totals at Knoxville, TN 37938.

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Nearby Knoxville ZIP codes

Full Knoxville rainfall history All Knox County ZIPs 37901 37902 37909 37912 37914 37915 37916 37917 37918 37919 37920 37921 37922 37923 37924 37927 37928 37929 37930 37931 37932 37933 37934 37939

With the GrayCloud app

Radar-measured rain for your exact spot in Knoxville, TN, no rain gauge needed
Alerts when rain is about to start
Live radar with a 60-minute outlook
Live Activities and home screen widgets
Monthly and year-to-date rain tracking

Source: NOAA MRMS radar-estimated precipitation and GHCN-Daily station OAK RIDGE ATDD. ZIP-code locations from GeoNames postal data (CC BY 4.0). Radar windows are point-scoped to the ZIP centroid; monthly and year-to-date totals blend the nearest reporting station with radar analysis.