Johnson City

Planning your day in Johnson City or just curious about the weather? Below you will find the most up-to-date information, forecasts, and useful weather charts to keep you informed of all changes.

The city of Johnson City, located in the USA, is characterized by a temperate climate with four distinct seasons. Travelers should expect significant temperature fluctuations throughout the year, which is typical for this region. The weather here offers a variety of conditions, allowing you to plan your trip based on your preferred activities and temperature preferences.

Winters in Johnson City are generally cool, with average January temperatures around 3.3°C and lows dipping below freezing. In contrast, summers are warm and sunny, peaking in July when the average temperature reaches 24.0°C and maximums can rise to 28.9°C. Spring and autumn are pleasant transitional seasons with mild temperatures, ideal for walking and exploring the city.

Precipitation in Johnson City is distributed fairly evenly throughout the year, without a pronounced rainy season. Monthly rainfall is low (averaging 3 to 6 mm), yet the number of days with precipitation remains relatively stable for most of the year (9 to 15 days per month). This suggests that light rain or overcast weather can be a frequent occurrence, so it is worth carrying an umbrella or raincoat regardless of the season of your visit.

Johnson City experiences a noticeable change of seasons with distinct temperature fluctuations throughout the year. The coldest month is typically January, when the average temperature is around 3.3°C, with nightly lows potentially dropping to -1.0°C and daytime highs averaging 7.7°C. Conversely, July is the hottest month, with an average temperature of 24.0°C. During this time, daytime highs often rise to 28.9°C, while nights remain warm, with temperatures around 19.1°C.

The summer months in Johnson City, especially June, July, and August, are characterized by warm and occasionally hot weather. Average daytime temperatures range from 26.4°C in June to nearly 29°C in July. Nights bring a pleasant coolness but remain warm, with temperatures from 16.5°C to 19.1°C. The difference between daytime and nighttime temperatures in the summer is about 9-10°C, providing some relief from the daytime heat. Transitional seasons, spring and autumn, offer more moderate temperatures. For example, in April the average temperature is 13.2°C, and in October it is 15.0°C, with significant daily fluctuations: April highs reach 19.0°C with lows of 7.3°C, while October highs reach 20.4°C and lows drop to 9.7°C respectively.

Winter in Johnson City is cool but not harsh. From December to February, average temperatures stay in the range of 3.3°C to 7.2°C. January is the coldest month, when nightly frosts are not uncommon. Daytime temperatures in winter usually remain above freezing, varying from 7.7°C in January to 12.1°C in February. Daily temperature variations in winter are also noticeable, averaging 8-10°C, meaning that even after a relatively mild day, nights can be quite cold.

While Johnson City does not have a clearly defined rainy season or dry period, a careful look at the statistics reveals some patterns in moisture distribution throughout the year. The highest amount of precipitation, averaging 6 mm, occurs in February, making it the wettest month. In contrast, the lowest volume of rainfall is observed from June to November—about 3 mm monthly.

Regarding the frequency of precipitation, the leaders are January, February, and July—each of these months averages about 15 days with precipitation. The "driest" month in terms of the number of such days is September, when precipitation is recorded for only about 9 days. Given the generally small average monthly volumes, we can speak of predominantly moderate or light precipitation throughout the year.

The nature of precipitation in Johnson City changes noticeably depending on the season. In winter, especially in January (with an average minimum temperature of -1.0°C) and December (average minimum temperature of +1.2°C), there is a high probability of snow. In February (average minimum temperature of +2.3°C) and November (average minimum temperature of +3.6°C), snowfall is also possible, especially during cold snaps, but more often precipitation here falls as rain or sleet. During the other, warmer months of the year, precipitation is predominantly in the form of rain.

When preparing for a trip to Johnson City, it is worth considering its changeable weather and being ready for variations at any time of year. A key tip is to dress in layers! This will allow you to easily adjust to temperature fluctuations throughout the day, which is especially relevant for the transitional seasons of spring and autumn. Although the total amount of precipitation is low (averaging 3-6 mm per month), the number of days with precipitation is quite significant—from 9 to 15 per month. Therefore, a light raincoat or a compact umbrella should definitely find a place in your suitcase. And, of course, don't forget comfortable walking shoes, as Johnson City and its surroundings are perfect for exploring on foot.

Summer in Johnson City (June-August) brings pleasant warmth: average temperatures range from 21°C to 24°C. During this period, you will need light, breathable clothing (T-shirts, shorts, dresses), sunscreen, sunglasses, and a hat. Evenings can be cooler, so bring a light sweater or jacket. Winters (December-February) are cool here, with an average temperature of about 3-7°C, and nightly lows can drop to -1°C. A warm jacket, sweaters, a hat, gloves, and a scarf will be absolutely necessary. Spring (March-May) and autumn (September-November) are transitional seasons with a wide range of temperatures: from a pleasant 20°C in September to a cooler 8-9°C in March or November. Accordingly, your wardrobe should be adaptable: from mid-weight clothing, such as jeans and long-sleeved shirts, to warmer sweaters and jackets, depending on the specific month of your journey.