Grants Pass

Planning a trip or just want to know what the weather is like in Grants Pass? Here you will find the most up-to-date information on current conditions, detailed charts, and short-term forecasts.

The climate in Grants Pass can be described as temperate, with pronounced seasonal contrasts. This part of the USA typically experiences a classic division of the year into a dry, warm period and a rainy season. Travelers can expect comfortable conditions without extreme frosts in winter or stifling humid heat in summer, making the city an attractive destination for various types of recreation.

Summer here is truly sunny and hot. In July and August, daytime temperatures often reach 30°C or higher, and there is almost no precipitation, creating ideal conditions for walking and active tourism. In contrast, winter is mild but wet: average temperatures stay above freezing, but the number of rainy days in December and January can reach 16–17 per month, making an umbrella an indispensable accessory for your trip.

The transitional seasons—spring and autumn—offer a pleasant balance. In spring, nature comes alive, and by May, the air warms up to a comfortable 20°C as the rains gradually recede. September often brings a continuation of summer warmth with temperatures around 26°C before a cooler and wetter period begins in November. This weather pattern makes it easy to plan a trip, choosing between a sunny riverside holiday or the cozy atmosphere of the cool season.

The temperature regime in Grants Pass exhibits distinct seasonality with a noticeable difference between winter and summer. The coldest period of the year is traditionally December and January, when average daytime temperatures hover around 8–9°C, and can drop to 0°C at night. In contrast, the peak heat occurs in July and August: during these months, the thermometer regularly rises above 30°C during the day, creating the conditions for a truly sweltering summer.

The summer season here is characterized by dry heat; however, travelers should take into account the significant diurnal temperature fluctuations. Even in the hottest months, when the air warms up to 30–31°C during the day, the nights bring a noticeable freshness, and temperatures drop to 13–14°C. This sharp difference makes the evenings comfortable for relaxation but may require light outerwear after sunset.

Winter in the region is quite mild and rarely extremely frosty. Although nighttime temperatures in January and February often fluctuate around the freezing point (0–1°C), the air warms up steadily during the day, which excludes prolonged periods of severe cold. The transitional seasons are also pleasant: by May, warm weather is established with highs around 20°C, and September often feels like an extension of summer.

Precipitation in Grants Pass is distributed unevenly throughout the year, showing a sharp contrast between wet winters and dry summers. Travelers should note that the rainiest period occurs during the winter months. January and December lead in the frequency of inclement weather, with 16 to 17 days of precipitation per month, so waterproof clothing and an umbrella will come in very handy.

In contrast to winter, the summer season delights with stable and dry weather. The period from July to August is the driest: statistics show that in these months, the probability of precipitation is close to zero (averaging 0–1 rainy days). This is the best time for those who prefer clear skies and plan long walks in the area without the risk of getting wet.

In the transitional seasons—spring and autumn—the weather pattern gradually changes. While the number of wet days starts to rise again in November (up to 12 days), the skies clear up by May and June. Given that minimum winter temperatures can drop to freezing or slightly below (for example, around -0.0°C in February), both rain and snow or sleet are possible in the coldest months, although rain remains the predominant form of precipitation.

When packing for Grants Pass, it's important to consider the region's distinct seasonality. Summers here are hot and very dry: in July and August, temperatures often exceed 30°C, and there is almost no rain. For a trip during this time of year, be sure to bring light clothing made of natural fabrics, sunglasses, a hat, and high-SPF sunscreen, as the sun can be very intense.

In winter and early spring, the weather changes dramatically: it becomes cool and wet. From November to March, the number of rainy days is high (up to 17 days a month), and nighttime temperatures can drop to 0°C. During this period, you will definitely need a waterproof jacket or a high-quality raincoat, a sturdy umbrella, and waterproof shoes. Also, don't forget warm sweaters or fleece jackets to stay comfortable during the chilly evenings.

For traveling in spring and autumn, the best approach is layering your clothes. In April and October, daytime temperatures can be pleasant (around 13–16°C), but mornings and evenings remain cold. A combination of a t-shirt, a light sweater, and a windbreaker will allow you to easily adapt to the changing weather throughout the day. And, of course, regardless of the season, bring comfortable walking shoes to explore the city and its surroundings with ease.