Weather in Dayton

Find out what weather awaits you in Dayton. This section contains up-to-date weather reports and forecasts to help you plan your day.

Dayton, located in the USA, is characterised by a moderate continental climate with four clearly defined seasons. This means that travellers can expect significant temperature fluctuations throughout the year, which is important to consider when planning a trip.

Winters in Dayton are generally cold, with average temperatures hovering around zero degrees Celsius (January: -0.2°C), and sometimes dropping lower, especially at night. Spring brings gradual warming, transitioning from cool weather in March (average temperature 6.5°C) to pleasant and warm conditions in May (average temperature 18.1°C). Summer here is warm and sunny, with average temperatures comfortably exceeding 20°C, peaking in July (average temperature 24.3°C). Autumn is characterised by a gradual decrease in temperature, offering mild weather in September (average temperature 20.9°C), which gives way to cooler conditions by November (average temperature 6.7°C).

As for precipitation, it falls regularly in Dayton throughout the year, without a distinct rainy or dry season. The monthly amount of precipitation is low (2-4 mm), however, the number of days with precipitation varies from 7 to 14 per month. This may indicate frequent, but usually not too intense precipitation, such as drizzle, light rain, or snow during the winter months. Overall, the weather in Dayton offers variety, but with a predictable change of seasons.

The city of Dayton experiences a distinct change of seasons with noticeable temperature fluctuations throughout the year. The coldest month is typically January, when the average temperature drops to -0.2°C, and nightly lows can reach -3.8°C. Daytime highs in January rarely rise above 3.3°C. Conversely, July is the hottest month with an average temperature of 24.3°C. During this period, daytime highs often reach 28.7°C, providing true summer warmth.

The summer months in Dayton, especially June, July, and August, are characterised by warm and sometimes hot weather. Average daytime temperatures range from 27.0°C in June to 28.7°C in July, creating comfortable conditions for outdoor activities. Nights also remain warm, with minimum temperatures from 17.4°C to 19.8°C, making evening walks pleasant. The transitional spring and autumn months demonstrate a gradual change in temperatures: May delights with an average temperature of 18.1°C, and September with a comfortable 20.9°C.

Winter in Dayton brings cool, and at times frosty weather. From December to February, average temperatures range from -0.2°C to 2.8°C. At night, the thermometer regularly drops below zero, especially in January (-3.8°C) and December (-0.9°C). Daytime highs during the winter period usually fluctuate between 3.3°C and 6.5°C. Throughout the year, noticeable daily temperature fluctuations are observed, where the difference between daytime highs and nightly lows can range from 7°C to 10°C, which is particularly perceptible in transitional seasons, for example, in April (a difference of about 10.4°C).

In Dayton, precipitation is distributed relatively evenly throughout the year, and there is no clearly defined rainy season or prolonged dry period, judging by the total volume of moisture falling. However, the nature and frequency of precipitation change noticeably from month to month. In winter, especially in January, when the average temperature drops below zero (January average -0.2°C, minimum -3.8°C), precipitation mainly falls as snow. In December and February, there is also a high probability of snowfall, although rain is also possible with temperature fluctuations.

The highest, albeit moderate, amount of precipitation (about 4 mm per month) falls in February, March, April, and June. Regarding frequency, May stands out as the month with the highest number of days with precipitation – an average of 14 days. March, April, and June are also characterised by frequent precipitation, counting approximately 13 "wet" days each. In these spring and early summer months, precipitation falls mainly as rain, with the exception of early spring when snowfall is still possible.

The lowest amount of precipitation, about 2 mm per month, is usually observed in August, September, and October. September is also the month with the fewest days with precipitation – an average of just 7. Overall, given that monthly precipitation volumes are small (2-4 mm) and distributed over a sufficient number of days, it can be assumed that Dayton is characterised by frequent but not too intense precipitation, such as light or moderate rain, and snowfall during the winter period.

Planning a trip to Dayton requires preparation for diverse weather, so the right choice of clothing will make your journey more comfortable. In the summer months, from June to August, when the average temperature ranges from 22°C to 24°C and the maximum can reach 27-28°C, you will need light clothing: t-shirts, shorts, sundresses. Do not forget sunscreen, sunglasses, and a hat. Given that there are 12-13 rainy days in the summer months, a light waterproof jacket or a compact umbrella will also be very useful.

Winter in Dayton, from December to February, is quite cold: the average temperature holds around 0-2°C, and night temperatures often drop below freezing. For this season, a warm jacket or down coat, hat, gloves, and a scarf are mandatory. Warm sweaters, fleece tops, and perhaps thermal underwear will help you feel cosy, especially if you plan to spend a lot of time outdoors. Winter also counts about 11-12 days with precipitation, which may fall as snow, so waterproof and warm footwear will be an advantage.

Spring (from March to May) and autumn (from September to November) in Dayton are seasons with changeable weather. The temperature in spring rises from 6°C to 18°C, and in autumn drops from a comfortable 21°C to 7°C. At this time, the layering principle works best: combine t-shirts, long-sleeved shirts, light jumpers, and cardigans with a windbreaker or a mid-season jacket. Especially in spring, when the number of rainy days can reach 14 per month, do not forget an umbrella or raincoat. And, of course, regardless of the season, comfortable walking shoes are your main companion for exploring the city.