Weather in Knoxville

Stay up to date with the latest weather conditions in Knoxville. In this section, we have gathered fresh data, forecasts, and other useful weather information for you to help you plan your day.

The climate in Knoxville is characterised as temperate, with four clearly defined seasons. The city experiences significant temperature fluctuations throughout the year, allowing tourists to choose the most comfortable time to visit depending on their preferences.

Summer in Knoxville is usually hot and sunny. Average temperatures in the summer months (June-August) range from 23-26°C, while maximum values can reach and exceed 30°C. Winters, on the other hand, are cool, with average temperatures from December to February around 4-8°C, while nighttime temperatures can drop to zero and below. Spring and autumn are pleasant transitional seasons with mild and comfortable weather.

Regarding precipitation, the provided data indicates a relatively low level throughout the year, averaging from 3 to 6 mm per month. The number of days with precipitation varies from 8 to 16 per month, suggesting periodic but, according to the data, not overly heavy rains. The highest number of days with precipitation occurs in July, and the lowest in November.

Knoxville observes a distinct change of seasons with characteristic temperature regimes. The annual temperature course shows a significant range: from cool winters to hot summers. The coldest month is typically January, when the average temperature is around 4.7°C, with the daily minimum dropping to 0.4°C, and the maximum reaching 9.1°C. Conversely, the peak heat occurs in July, with an average temperature of 26.1°C, a daily minimum of 21.4°C, and a maximum reaching 30.8°C. These data testify to a full four-season climate.

The summer months in Knoxville – June, July, and August – are characterised by consistently high temperatures. In June, the average temperature holds at 23.9°C (maximum up to 29.0°C), reaching its peak in July, as already mentioned, with highs above 30°C. August remains very warm, with an average temperature of 25.1°C and daytime peaks around 29.7°C. Nights during the summer period are also warm, with minimum temperatures rarely dropping below 18-21°C, creating the sensation of a prolonged warm season.

Winter in Knoxville, covering December, January, and February, brings noticeable cooling. In December, the average temperature is 7.1°C (minimum 2.8°C), January is the coldest, and in February, warming is already noticeable up to an average temperature of 8.6°C (minimum 3.7°C). Nighttime temperatures in the winter months often approach zero or drop slightly below, especially in January, however, daytime highs usually remain positive, fluctuating from 9°C to 13°C. The difference between day and night temperatures throughout the year is quite stable, averaging 8-11°C, which ensures noticeable but not extreme daily fluctuations. For example, in April, this difference can reach 11.2°C (from 9.1°C at night to 20.3°C during the day), which is typical for transitional seasons.

Precipitation in Knoxville is distributed relatively evenly throughout the year regarding its total amount, which remains quite low. Monthly rainfall ranges from 3 to 6 mm, indicating the absence of a clearly pronounced heavy rain season. Nevertheless, the frequency of rainy days varies by month, creating periods with more frequent, albeit not heavy, precipitation.

The highest amount of precipitation, according to monthly average data, falls in February – about 6 mm. However, in terms of the number of days with precipitation, July stands out, when rain or other types of precipitation can occur for approximately 16 days a month, bringing about 4 mm of moisture. This suggests that summer precipitation likely bears the character of frequent but light rains. Winter and early spring months, such as January, February, and March, also have quite a few days with precipitation (12-14 days), with the total amount of precipitation being 4-6 mm.

The "driest" month by the number of days with precipitation is November, when there are on average only 8 days with precipitation, bringing about 3 mm of moisture. September and October are also characterised by a lower frequency of precipitation – 9 days in each month and 3 mm of precipitation respectively. Thus, the autumn period can be considered the least rainy from the point of view of frequency. Several months, including April, May, June, as well as the mentioned autumn months, have the lowest average amount of precipitation – just 3 mm.

In winter, especially in January, when minimum temperatures approach zero (average minimum 0.4°C), precipitation may fall not only as rain but also, possibly, as wet snow or freezing rain, although the provided data does not detail the type of precipitation. However, the total amount of precipitation in the winter months (4-6 mm) remains low. This implies that even if snow falls, it is unlikely to be heavy and prolonged. The main form of precipitation throughout most of the year in Knoxville is likely rain.

When planning a trip to Knoxville, it is important to consider its distinct seasonality so that your wardrobe matches the weather. Regardless of the time of year, comfortable walking shoes will be your best friend, as the city is conducive to walking. Considering that the number of days with precipitation varies from 8 to 16 per month, although the precipitation itself is not heavy, a small folding umbrella or a light raincoat will not be out of place in your suitcase. The principle of layering in clothing is an excellent strategy for Knoxville, as it will allow you to easily adapt to temperature changes throughout the day, especially in the transitional seasons.

In summer (June-August), Knoxville can be hot, with average temperatures reaching 23-26°C, and maximums exceeding 30°C. Pack light, breathable clothing made of natural fabrics, shorts, and T-shirts. Do not forget sunscreen, a hat, and sunglasses. Despite the heat, a light jacket or cardigan may come in handy for cool evenings or air-conditioned rooms. In winter (December-February), the weather is cool, with average temperatures around 4-8°C and night frosts, especially in January. You will need warm clothes: sweaters, fleece clothing, a warm jacket, a hat, gloves, and a scarf. Waterproof outerwear may also be useful, considering the likelihood of precipitation in the form of rain or wet snow.

Spring (March-May) and autumn (September-November) in Knoxville are pleasant transitional periods with moderate temperatures. In spring, average temperatures rise from 11°C to 20°C, and in autumn, they drop from 22°C to 10°C. For these seasons, layered clothing is ideal: T-shirts, long-sleeved shirts, light sweaters or cardigans, as well as a mid-season jacket or raincoat. Jeans or comfortable trousers will be a universal choice. Such preparation will allow you to feel comfortable both in the warm daytime hours and during the cooler morning and evening periods.