Climate and monthly weather forecast
Dinosaur National Monument, UT

Presiding in the wilderness of Utah, USA, the Dinosaur National Monument possesses a Humid Continental climate, classified as Dfb within the Köppen climate system. This classification connotes the lack of a dry season, while retaining a warm summer. The weather thrives on an annual continuum of contrasts - frigid winters give way to warm summers, defining the climatic cycle of this geographic wonderland.

With the foundational climate data on hand, it becomes evident that the weather parameters fluctuate visibly through the year. A cursory eye on temperatures reveals a fluctuation from a chilly 10.8°F (-11.8°C) in winter to a pleasant high of 90.5°F (32.5°C) in summer. Rainfall too, experiences its own rhythm, varying from a restrained 0.6" (15mm) in the cooler months to a high of 1.5" (38mm). Snowfall traces a similar path, with its presence felt only between the colder months of November to April.

Certain unique weather patterns abide in the Dinosaur National Monument. Noticeably, the park experiences its maximum rainfall in October, peaking at 1.5" (38mm). While the harsh winters introduce a heavy snowfall amounting to 9.2" (234mm) in January - making it a snow lover's paradise.

Considering the weather parameters and climatic conditions, the most favorable time to visit Dinosaur National Monument would range from June to September. This period sees the highest temperatures, stretching from 71.9°F (22.2°C) to 90.5°F (32.5°C), with a minimal rainfall restricted between 1 to 1.1" (28mm). The long daylight hours ranging from 14.5 hours to 15 hours amplify the joy of outdoor activities and exploration.

Alternatively, winter typically is considered the least ideal time for tourism in Dinosaur National Monument. The months from December to February witness lowest temperatures, dropping as low as 10.8°F (-11.8°C) in January. The weather conditions are further exacerbated by heavy snowfall, accumulating up to 6.6" (168mm) to 9.2" (234mm), hindering outdoor activities and travel.

Spring in this stunning location goes from March to May. Average temperatures swing from 33°F (0.6°C) in March, gradually heating up to reach 71.9°F (22.2°C) in May. The rainfall, comparatively nominal during this period, increases from 0.6" (15mm) in March to 1.3" (33mm) in May. Snowfall, although sparse with spring’s arrival, still marks its presence ranging from 3.5" (89mm) to 0.7" (18mm).

Summers in Dinosaur National Monument, taking over from June to August, introduce warm temperatures and extended daylight hours, attracting outdoor enthusiasts. Temperatures settling between 83.2°F (28.4°C) and 90.5°F (32.5°C) alongside rising daylight hours extending from 14.5 to 15 hours invite endless exploration. Rainfall remains contained to a comfortable capacity, promising a pleasant weather experience.

Given the broad palette of autumn colors, the months from September to November offer a unique atmosphere. Although temperatures start to drop from the 77.7°F (25.4°C) in September to a cool 45.7°F (7.6°C) in November, the aesthetic change makes this reduction bearable. Rainfall figures illustrate an increasing trend, peaking at 1.5" (38mm) in October.

Winter tightens its grip from December to February, with temperatures dropping drastically to as low as 10.8°F (-11.8°C) and average daylight hours decreasing to 9.3 hours in December. Snowfall accentuates the winter character of the climate, with high values of 8.3" (211mm) in December and inching up to 9.2" (234mm) in January. Despite the cold and heavy snowfall, winter provides an untouched and serene beauty to Dinosaur National Monument, especially for snow enthusiasts.

January ushers in the chill of winter to Dinosaur National Monument, Utah, with temperatures plunging to a crisp 10.8°F (-11.8°C) and only reaching a high of about 33°F (0.6°C). It is a period of lengthy nights with an average daylight duration of 9.7 hours and a landscape transformed by snowfall of around 9.2" (234mm). Weather in January »

In February, the weather in Dinosaur National Monument, Utah, remains within the winter horizon with a marginal increase in temperature from the previous month. Akin to January, February witnesses another 0.6" (15mm) of rainfall and snowfall seeing a decrease to 6.6" (168mm). Weather in February »

March is a transitionary month in Dinosaur National Monument, Utah, shedding the intense cold of winter to welcome the slight warmth of spring. The lower end of temperatures comes in around 25°F (-3.9°C) with snowfall reducing significantly to 5.9" (150mm). Weather in March »

April displays a definitive shift towards spring in Dinosaur National Monument, Utah, with a significant jump in temperatures from the near-freezing temperatures of the previous months. Notably, April encounters up to 1.2" (30mm) of rainfall, witnessing the spring showers that characterize this season. Weather in April »

May sees a departure from spring as the temperatures in Dinosaur National Monument, Utah, move towards the warmth of summer. It is during this month that the Monument receives the highest showers of rainfall, measuring up to 1.3" (33mm). Weather in May »

June marks the onset of the pleasant summer in Dinosaur National Monument, Utah, with balmy temperatures that promote blossoms across the landscape. Slight rainfall of 1.1" (28mm) is counterbalanced by the high temperature reaching up to 83.2°F (28.4°C). Weather in June »

July brings in the peak of summer to Dinosaur National Monument, Utah, with a soaring high temperature of 90.5°F (32.5°C). Despite these high temperatures, July averages a full inch of rainfall, providing respite. Notwithstanding the heat, the beauty of Utah's landscapes can still be enjoyed due to the longest daylight hours of 15 per day. Weather in July »

August, although part of the summer season in Dinosaur National Monument, Utah, sees a slight decrease in high temperatures from July's peak. The average rainfall for August is comparable to that of the previous month, registering an amount of 0.9" (23mm). Weather in August »

September marks a phase of transition between summer and autumn for the Dinosaur National Monument, Utah, with the high temperatures gradually giving way to truer fall weather. A unique characteristic of this month is the sharp decrease in high temperatures to around 77.7°F (25.4°C), yet with rainfall not too different from August, recording 1.2" (30mm). Weather in September »

October signals the onset of chillier temperatures in Dinosaur National Monument, Utah, as the landscape transitions more deeply into autumn. The month receives the highest rainfall at 1.5" (38mm), signifying the damp nature usually associated with the fall months. Weather in October »

November in Dinosaur National Monument, Utah, marks the advent of winter. Temperatures fluctuate from a cool 23.3°F (-4.8°C) to a moderate 45.7°F (7.6°C). This period sees a decline in rainfall to 0.8" (20mm), and a significant increase in snowfall to 4.7" (119mm). Weather in November »

December signifies the full onset of winter at Dinosaur National Monument, Utah, with the landscape engulfed by the hush of snow. A high temperature of 34.2°F (1.2°C) showcases the dominance of winter, while snowfall reaches its peak at 8.3" (211mm). Weather in December »