Climate and monthly weather forecastDeath Valley National Park, CA

The climate of Death Valley National Park

Death Valley National Park, situated in eastern California, USA, experiences an extreme desert climate. According to the Köppen climate classification, the climate type of this area is determined as BWk, known as mid-latitude desert. This means the area remains extremely arid and hot for the majority of the year, with minimal annual rainfall.

Throughout the year, temperatures fluctuate sharply between temperatures as low as 40°F (4.4°C) and as high as 116.5°F (46.9°C). The lowest temperatures are typically observed in the winter months, whereas the summertime brings sizzling highs, particularly between June and August. Daylight hours also change due to the seasonal transition, ranging from 9.7 hours in December, and up to 14.6 hours in June. During summer, the park enjoys up to 14 hours of sunlight, whereas winter days get six hours of sun exposure, typically.

Considerable variability is also seen in the rainfall patterns. Monthly rainfall is generally minimal, ranging from no rainfall in May to 0.5" (13mm) in February. A similar observation is found in the number of rainfall days per month, which range from zero days to a maximum of three days. Despite its desert classification, the region does exhibit some unique weather attributes. For instance, the ultraviolet index reaches its zenith of 10 during the peak of summer.

The best time to visit Death Valley National Park

The optimal time for visiting Death Valley National Park usually coincides with the onset of spring. During this period, temperatures typically hover around a pleasant 66.9°F (19.4°C) to 90.5°F (32.5°C), which is relatively mild compared to the scorching summer highs. Additionally, daylight hours gradually increase, starting from 10 hours per day in March to 13.2 hours by April. Visitors can also anticipate longer sunlight exposure, ranging from 7 to 11 hours daily.

The worst time to visit Death Valley National Park

Visitors are strongly advised to avoid the sweltering summer season, as the temperatures can easily escalate to a blistering 116.5°F (46.9°C) during these months. Moreover, the period from June to August signifies the longest days of the year, with daylight hours extending to a maximum of 14.6 hours per day, and sum of sunshine hours reaching an impressive 13.

Spring weather in Death Valley National Park

In terms of atmospheric conditions, springtime in Death Valley National Park comes across as a mild and glorious period. Temperature values faintly escalate from 66.9°F (19.4°C) to 90.5°F (32.5°C), daylight hours reach up to 13.2 hours, and sunny conditions prevail for 7 to 11 hours daily. Furthermore, there occurs a steady decline in rainfall from 0.5" (13mm) in February to 0.1" (3mm) by April.

Summer weather in Death Valley National Park

Death Valley National Park is infamous for its unrelenting summer heat. The months of June to August are exceptionally hot, with average temperatures soaring between 100.5°F (38.1°C) and 116.5°F (46.9°C). Daylight hours are elongated, with sunshine prevailing for 12 to 13 hours a day. Rainfall during this period is almost negligible, marking this dry phase as the epitome of the desert climate in this region.

Autumn weather in Death Valley National Park

Autumn denotes the onset of a gentle descent in temperatures, with ranges from 106.5°F (41.4°C) in September to a comfortable 77.1°F (25.1°C) by November. Daylight hours gradually shorten, and rainfall remains minimal, with recorded values ranging from 0.1" (3mm) to 0.2" (5mm).

Winter weather in Death Valley National Park

The winter season brings much-needed relief from the untouched summer heat. The temperatures fluctuate from 65.2°F (18.4°C) to 40°F (4.4°C), making it the coldest time of the year. Daylight hours are the shortest, ranging from 9.7 hours to 10.2 hours and rainfall increases, albeit slightly, recording up to 0.3" (8mm) during December. This presents a stark contrast to the traditionally arid impressions of Death Valley National Park.

Weather in January

Despite being the start of the year, January weather in Death Valley National Park tends to be quite mild, with pleasant daytime temperatures. Nonetheless, UV index reaches a low point at just 2 units, indicating that the sun's rays are least intense during this month. Weather in January »

Weather in February

As Death Valley National Park dips into February, a slight hike in temperatures becomes notable, deviating from January's milder conditions. High temperatures climb to approximately 73.3°F (22.9°C) and the low hovers around 46.3°F (7.9°C). Weather in February »

Weather in March

As the year progresses into March, spring begins to make its presence felt in Death Valley National Park. Noticeably longer daylight hours, now approximately 12 hours, contribute to an increase in temperatures, rising to a warm high of 82.1°F (27.8°C). Weather in March »

Weather in April

April’s weather signals a decisive departure from early spring to the doorway of summer in Death Valley National Park. The weather warms up considerably, with the temperature climbing to a scorching high of 90.5°F (32.5°C). However, the nights remain relatively cool, offering a respite from the day's heat. Weather in April »

Weather in May

May in Death Valley National Park is best described by two words, hot and dry. Daytime temperature peaks significantly, hitting a high of around 100.5°F (38.1°C), demonstrating the park's transition into summer. The UV index also rises to reach a high level of 9. Weather in May »

Weather in June

June signifies the start of summer in Death Valley National Park, bringing with it blistering heat. The month grapples with some of the highest temperatures, reaching a soaring high of around 109.9°F (43.3°C). With an almost non-existent chance of rainfall and a high UV index, precautions to avoid sunburn are a must. Weather in June »

Weather in July

July in Death Valley National Park is often recognized as the pinnacle of summer. The scalding conditions of this month push the limits, with the park experiencing its highest temperatures of the year, hitting a high of 116.5°F (46.9°C). Weather in July »

Weather in August

August in Death Valley National Park holds on to July's red-hot weather, but with a subtle dip in temperature. The maximum temperature recedes slightly to 114.7°F (45.9°C), a marginal relief amid an otherwise melting summer. The contrast between the daytime heat and nighttime low temperature, which stands at 85.7°F (29.8°C), becomes a bit more pronounced. Weather in August »

Weather in September

As Death Valley National Park steps into September, relief from the searing summer heat begins to materialize. While the daytime temperatures remain high at 106.5°F (41.4°C), it's a considerable decline from the peak summer heights. Weather in September »

Weather in October

October marks a significant change in Death Valley National Park's weather as autumn truly takes hold. The maximum temperature drops down to more tolerable levels, averaging around 92.8°F (33.8°C). Significantly, the UV index experiences another dip, reflecting a decrease in the sun's intensity. Weather in October »

Weather in November

Once November arrives in Death Valley National Park, the chill of winter starts to become evident. A significant drop in temperature kicks in, bringing the maximum temperature down to a mild 77.1°F (25.1°C). Coinciding with this increased chill is a drop in the UV index to a level of 3. Weather in November »

Weather in December

Closing off the year, December in Death Valley National Park introduces a winter chill, with temperatures plummeting to their lowest levels. The tail end of the year sees temperatures drop to an annual low of 38.3°F (3.5°C). Weather in December »