West Mifflin

Planning your day in West Mifflin or just curious? Here you'll find the latest weather information, including detailed forecasts and visual charts.

The climate in West Mifflin, USA, is characterized as humid continental with four distinct seasons. Visitors should expect significant temperature fluctuations throughout the year, which is typical for this climate zone. The city experiences both warm summer months and cold winters, which is important to consider when planning your trip.

Summer in West Mifflin, especially in July and August, is warm and pleasant, with average temperatures hovering around 23-24°C and maximums reaching 27-28°C. In contrast, winters are cold: in January, the average temperature drops to -0.3°C, and nightly frosts of -4°C are not uncommon. Spring (March-May) and autumn (September-November) are transitional seasons with gradual temperature changes, offering moderate weather for walking and exploring the city.

As for precipitation, it is distributed fairly evenly throughout the year in West Mifflin. A small amount of precipitation falls every month, averaging 3-5 mm. At the same time, the number of days with precipitation varies from 11 to 16 per month, indicating a likelihood of frequent but generally not too intense rain or snow during the winter. There is no clearly defined rainy or dry season here.

The climate in West Mifflin is characterized by pronounced seasonal temperature fluctuations throughout the year. The hottest month is typically July, with an average temperature of 23.8°C and daytime highs reaching up to 28.5°C. On the other hand, January is the coldest month, with an average temperature of about -0.3°C and nightly lows dropping to an average of -4.0°C. Thus, the annual temperature range in West Mifflin is quite significant, showing a transition from freezing winters to warm, and sometimes hot, summers.

The summer months, from June to August, bring predominantly warm weather to West Mifflin. In June, the average temperature stays at 21.0°C, rising to 23.8°C in July and slightly decreasing to 22.8°C in August. Daytime temperatures during this period often exceed 25°C, especially in July (up to 28.5°C) and August (up to 27.5°C). Nights also remain fairly warm, with minimum temperatures ranging from 16.2°C in June to 19.1°C in July, creating comfortable conditions, although humidity can sometimes be felt.

The winter period in West Mifflin, spanning December, January, and February, is characterized by cool and occasionally freezing weather. Average monthly temperatures range from -0.3°C in January to 2.4°C in February and 2.6°C in December. At night, air temperatures regularly drop below freezing, especially in January (averaging -4.0°C) and February (-2.2°C). During the day, the thermometer usually shows between 3.4°C and 6.9°C. Daily temperature fluctuations are noticeable throughout the year: the difference between average maximum and minimum temperatures within a month is approximately 7°C to 10°C, which is typical for the region.

While West Mifflin does not have a pronounced rainy or dry season, indicating a fairly even distribution of moisture throughout the year, the precipitation pattern has its own nuances. A relatively small amount of precipitation falls monthly, ranging from 3 to 5 mm. This suggests that precipitation, whether rain or snow, is likely to be frequent but not particularly intense in volume at any one time.

The nature of precipitation changes significantly depending on the time of year. In winter, especially in January (average temperature -0.3°C) and February (average temperature 2.4°C), when minimum temperatures drop well below freezing, precipitation often falls as snow. December is also a cold month with a high probability of snowfall. With the arrival of spring, starting around March and lasting until late autumn (November), precipitation is predominantly rain. Even in summer, despite the warm temperatures, rain is not uncommon, maintaining the overall humidity levels.

In terms of frequency, the number of days with precipitation remains fairly high for most of the year. May and August stand out as the months with the highest number of wet days—16 days each. The highest volume of precipitation (5 mm) occurs in May. The "driest" months by total precipitation (only 3 mm) are March, August, November, and December. However, judging by the fewest days with precipitation, those are September and November (11 days each). Overall, you can expect precipitation roughly every two to three days for much of the year, so an umbrella or raincoat will be a useful companion during your visit to West Mifflin.

When planning a trip to West Mifflin, keep in mind that precipitation is quite frequent throughout the year, with 11 to 16 rainy days each month. Therefore, regardless of the season, an umbrella or a light raincoat is a must-have in your luggage. Also, don't forget comfortable, preferably waterproof, shoes, as you'll likely want to explore the city on foot, and frequent precipitation can make walks less comfortable without the right footwear.

Winter months (December-February) in West Mifflin are quite chilly, with average temperatures around 0°C and minimums dropping below freezing. You'll need warm, layered clothing: thermal base layers, sweaters, an insulated jacket, a hat, gloves, and a scarf. In summer (June-August), the weather is warm, with average temperatures ranging from 21-24°C, and maximums reaching up to 28.5°C. For this time of year, light breathable fabrics, T-shirts, shorts, and sundresses are suitable, along with sunscreen, sunglasses, and a hat. A light sweater or windbreaker will come in handy for evening strolls or in case of a sudden cold snap.

Spring (March-May) and autumn (September-November) are characterized by changeable weather and gradual temperature changes, from a cool 6°C in March to a comfortable 20°C in September. During these shoulder seasons, layering is the best strategy. Combine T-shirts or long-sleeved shirts with sweaters, fleeces, and a mid-season jacket (perhaps windproof) that can be easily put on or taken off. This will allow you to adapt to any changes in temperature and precipitation levels, keeping you comfortable during your journey to West Mifflin.