Climate averages 1991–2020

Knoxville weather
in January.

A cool, wet month: the coolest and the 9th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 8.3°C Daytime mean, January

Average low -0.6°C Night-time mean, January

Rainfall 111 mm 11 days with ≥1 mm

Daylight 10 h Sunrise to sunset, per day

January is a cool month in Knoxville: daytime highs average 8.3°C and nights cool to about -0.6°C. By daytime temperature it is the coolest month of the year.

Expect about 111 mm of rain on roughly 11 days, which makes January a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 01 min on an average January day.

The nearest other city in this atlas is Asheville (130 km away). In January its highs average 7.1°C, 1.2°C cooler than Knoxville, with 96 mm of rain.

Among the 498 cities listed in the United States, Knoxville ranks joint 271st of 498 for the warmest January highs and 446th of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Knoxville is 1.1°C cooler than that mean.

From January to February, average highs rise by 2.3°C to 10.6°C, and monthly rainfall falls from 111 mm to 110 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Knoxville climate table

1991–2020

Monthly climate averages for Knoxville, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	8.3°C-0.6°C	-0.6°C	111	10.7	10.010 h
February	10.6°C0.8°C	0.8°C	110	10.9	10.911 h
March	15.0°C4.2°C	4.2°C	123	12.2	11.912 h
April	20.0°C8.8°C	8.8°C	109	10.9	13.113 h
May	24.1°C13.8°C	13.8°C	94	11.7	14.014 h
June	28.3°C18.3°C	18.3°C	93	13.2	14.615 h
July	29.8°C20.5°C	20.5°C	119	14.8	14.314 h
August	29.4°C19.9°C	19.9°C	86	11.4	13.514 h
September	26.7°C16.8°C	16.8°C	90	8.3	12.412 h
October	20.9°C10.5°C	10.5°C	74	7.7	11.311 h
November	14.6°C4.5°C	4.5°C	96	8.9	10.310 h
December	9.9°C1.2°C	1.2°C	117	10.6	9.810 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Knoxville

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Knoxville) is explained once on the Knoxville year overview and on the Sources, method and limits page.