Folsom

Planning your trip or just curious about the weather in Folsom? In this section, you'll find the latest information on weather conditions, along with forecasts and helpful charts.

The climate in Folsom, USA, can be described as Mediterranean, with distinct seasons. The city enjoys warm, and sometimes hot, dry summers and mild, wetter winters. Overall, the annual rainfall is very low, making it an attractive destination for sun-seekers.

The summer months, particularly from June to September, are characterized by high temperatures often exceeding 30°C and almost no rainfall. This is the perfect time for outdoor activities. Winter, from December to February, brings cooler weather with average temperatures around 9-10°C and the majority of the annual precipitation, though it remains light. Spring and autumn are pleasant transitional seasons with comfortable temperatures and few rainy days.

The climate in Folsom is characterized by notable seasonal temperature fluctuations throughout the year. The hottest months are typically July and August. In July, the average temperature is 27.0°C, with highs reaching 36.0°C, while in August, the average temperature stays around 26.5°C with highs up to 35.0°C. Conversely, the coolest months are December (average temperature 9.5°C, low 4.9°C) and January (average temperature 9.9°C, low 5.3°C). Thus, the annual temperature cycle shows distinct summers and winters, with smooth transitions through spring and autumn.

The summer months in Folsom, especially from June to August, feature hot and mostly dry weather. Average maximum temperatures during this period consistently rise above 30°C, peaking in July (36.0°C) and August (35.0°C). A characteristic feature of the summer is the significant daily temperature range. For example, in July, the difference between the daytime high (36.0°C) and the nighttime low (18.1°C) can be nearly 18°C, meaning hot days and noticeably cooler nights. Precipitation is almost nonexistent during the summer months, particularly in July and August.

Winter in Folsom, spanning from December to February, is characterized by mild and cool weather, without severe frosts. Average temperatures during these months hover around 9.5°C - 10.3°C, and nightly lows typically stay above 4°C. Unlike the dry summers, winter brings some precipitation. Daily temperature fluctuations are still present, though less pronounced than in summer; for instance, in December, the difference between the average high (14.1°C) and the low (4.9°C) is about 9°C. Transitional seasons, such as April and October, also show noticeable temperature shifts between day and night, which is typical for Folsom's climate.

The city of Folsom experiences a clear seasonality in its precipitation distribution throughout the year. There is a distinct dry summer period and a wetter autumn-winter-spring season. Summer, especially the months from June to September, is characterized by minimal precipitation, and often none at all.

The highest rainfall occurs during the winter months and early spring. Thus, January, March, and December are the wettest, each seeing an average of about 5 mm of precipitation. March stands out with the highest number of rainy days—averaging 13. January and December see about 11 rainy days each, while February and November have around 8. Given the temperature range, precipitation in Folsom primarily falls as rain.

In contrast, the summer months are very dry. June, July, August, and September see almost no precipitation, with amounts totaling 0 mm. No rainy days are recorded in July and August, making them completely dry months. Even in transitional months like May (1 mm of precipitation, 4 rainy days) and October (1 mm of precipitation, 2 rainy days), the amount of rainfall remains insignificant.

When planning a trip to Folsom, it's important to choose the right wardrobe to stay comfortable in any weather. Summers here, especially in July and August, are hot and dry, with average highs reaching 35-36°C. Therefore, be sure to bring light, breathable clothing made from natural fabrics, sunscreen, a hat, and sunglasses. Evenings can be a bit cooler, but overall, summer attire will be most appropriate. There is virtually no rainfall in the summer months, so you're unlikely to need an umbrella.

Winter in Folsom (December–February) is significantly cooler, with average temperatures around 9-10°C and lows dropping to 4-5°C. This period sees more precipitation, and the number of rainy days increases. It's recommended to pack warm clothing: sweaters, fleeces, and a mid-season jacket or coat. A waterproof jacket or an umbrella will also come in handy. The shoulder seasons (spring and autumn) feature a gradual transition in temperatures. Spring (March–May) gets warmer, while in autumn (September–October), the heat of summer gradually fades. During these times, layering is the best approach: a light jacket, cardigan, or sweater that can be easily added or removed as the weather changes. Rainfall in the shoulder seasons is moderate, but an umbrella or a light waterproof jacket might be useful, especially in spring.

Regardless of the season, you'll need comfortable shoes for exploring Folsom and its surroundings. Given the temperature shifts between day and night, especially in transitional seasons, layered clothing is your best choice. This will allow you to adapt easily to changing conditions and enjoy your trip in comfort.