Climate and monthly weather forecastDeadhorse, AK
Climate and monthly weather forecast
The climate of Deadhorse
Located in the upper northern reaches of Alaska, USA, Deadhorse is predominantly a subarctic, subalpine climate, as per the Köppen climate classification (Dsc). Distinctly noted for its long, brutally cold winters and short, cool summers, which contribute to a climate landscape characterised by large swings in temperature, low evaporation rates, and high humidity.Throughout the year, temperature ranges from a low of -16.6°F (-27°C) in the colder months of winter, to a high of 51.4°F (10.8°C) in the peak of summer. Polar in its nature, the temperature in Deadhorse rarely crosses the freezing point during the cold months. Relative humidity remains fairly high throughout the year, fluctuating between 76% in the warmer months and 93% during the cooler months.
Rainfall is relatively low with a monthly average from 0.16" (4mm) to 0.83" (21mm) but increases substantially from June to August. Snowfall graces the region extensively from October to April, with the highest snowfall of 1.81" (46mm) happening in November. At its peak, Deadhorse experiences up to 17.5 snowfall days in a single month.
The wind speed varies from 9.8mph (15.8km/h) in the warm seasons to 11.9mph (19.2km/h) in the colder months. The visibility in the region remains relatively stable with averages of 4 miles during cold months and 6 miles during the warm seasons.
The best time to visit Deadhorse
The brief but beautiful summer, July and August, would be the most amiable time to visit Deadhorse. During this period, temperatures reach a lively peak of 51.4°F (10.8°C) and the precipitation takes a back seat, averaging 0.55" (14mm) to 0.83" (21mm). The daylight hours also delight, with the sun gracing the region with an impressive 23.8 hours per day in July, a phenomenon commonly known as the 'Midnight Sun'.The worst time to visit Deadhorse
The challenging weather conditions of Deadhorse recommend avoiding the peak winter months of December, January and February. Temperatures drop dramatically to lows of -16.6°F (-27°C), and there are frequent appearances of snow lasting on average 13.9 days in February with snowfall of 0.91" (23mm). The little available daylight, as low as 0 hours in December, and reduced sunshine averaging 0.4 hours in December do not favor outdoor activities thus significantly reducing the chances of an enjoyable visit.Spring weather in Deadhorse
Spring in Deadhorse, embraced in the months of March, April and May, is characterized by slowly rising temperatures and increasing daylight hours. Although the temperature continues to linger below the freezing point in March and April, it takes a respite in May, reaching a high of 30°F (-1.1°C). Rainfall is moderate, averaging 0.16" (4mm) in March to 0.24" (6mm) in May, and snowfall begins to reduce from 0.71" (18mm) in March to 0.87" (22mm) in May.Summer weather in Deadhorse
The short summer of Deadhorse, spanning from June to August, brings mild temperatures and the much-awaited midnight sun. Temperature ranges from 43.9°F (6.6°C) in June to a pleasing 51.4°F (10.8°C) in July. Rainfall escalates, peaking at 0.83" (21mm) in August. Snowfall becomes an unfamiliar scene during these months as daylight hours peak at 24 hours per day in June.Autumn weather in Deadhorse
Autumn in Deadhorse is noticed in September and October. As the transition from summer to winter takes place, temperatures begin a downward trajectory from 39.2°F (4°C) in September to a chilling 26.6°F (-3°C) in October. Rainfall averages at 0.31" (8mm) in September, rising to 0.35" (9mm) in October, while snowfall begins to make a reentry with 0.87" (22mm) in September, increasing to 1.69" (43mm) in October.Winter weather in Deadhorse
Winter in Deadhorse, encapsulated in the months of November, December and January, is ruthlessly cold and sun-deprived. The temperature oscillates between -4.2°F (-20.1°C) to -7.1°F (-21.7°C) and snowfall dominates the region with 1.81" (46mm) in November and 1.02" (26mm) in December. Daylight hours dwindle, reaching a veritable nil in December, returning only toward the end of January.Weather in January
January in Deadhorse, Alaska, bears the brunt of the winter season with harsh, frigid weather. Conditions include frosty temperatures that dip to minus 16.6°F (-8.6°C) and rarely exceed minus 7.1°F (-13.8°C). Blankets of snow dominate the floors and rooftops, providing a picturesque white landscape. Weather in January »Weather in February
Moving into February, Deadhorse experiences incrementally less severe cold in comparison to January, though it still maintains a robust winter atmosphere. The coldest nights ease slightly in this month, and temperatures range from minus 13.4°F (-10.3°C) to minus 3.1°F (-16.1°C). Weather in February »Weather in March
The transition from winter to spring in March often witnesses a noticeable shift in weather patterns. Weather remains chilly, with temperatures shifting between minus 13°F (-10.6°C) and minus 1.1°F (-17.2°C). March also experiences a heightened number of precipitation days, contributing to typically muddy conditions. Weather in March »Weather in April
In April, the weather begins to soften, affirming the arrival of spring. Temperature swings from a minimum of 0.7°F (-17.4°C) to a maximum of 13.5°F (-10.3°C) provide respite from the freezing winter conditions. As the ice thaws, the city witnesses an increase in rainfall, superseding the prevalent snowfall of the prior months. Weather in April »Weather in May
The weather in May in Deadhorse, Alaska, transitions consistently into warmer conditions. It is during May that the mercury rises and fluctuates between 21.6°F (-5.8°C) and 30°F (-1.1°C). Suns out for longer durations, and more clear skies add a spark to the city's charm. Weather in May »Weather in June
June marks the arrival of summer in Deadhorse, with temperatures peaking for the year at a high of 43.9°F (6.6°C). A significant shift in weather is noticeable, featuring fewer extreme conditions. Fair and balmy weather accompanies extended daylight hours, providing ample opportunity for outdoor pursuits. Weather in June »Weather in July
July, the peak of the summer season, sustains the warming trend noted in June. Highest temperatures soar to 51.4°F (10.8°C), making it the warmest month of the year. Delightful weather conditions make this a highly attractive time for outdoor activities. Weather in July »Weather in August
The weather in August gives hints of the inevitable march towards autumn. Temperatures begin to retreat, ranging from 38.5°F (3.6°C) to 46.9°F (8.3°C). Rainfall records a significant increase, resulting in historically the wettest month of the year. Weather in August »Weather in September
September in Deadhorse, Alaska, often witnesses a rapid transition towards cooler temperatures. The mercury ranges from 33.1°F (0.6°C) to a bearable 39.2°F (4°C), heralding the impending arrival of fall. Less rainfall and more snowfall indicate the return of the colder months. Weather in September »Weather in October
October represents the shift to cooler temperatures as the fall season becomes more pronounced. Maximum temperatures plummet to 26.6°F (-3°C), while lows touch 21.4°F (-5.9°C). Instances of snowfall rise significantly, contrasted by decreased rainfall, reminding locals of the imminent winter. Weather in October »Weather in November
By November, Deadhorse relapses into full winter mode, with distinct drops in temperature, ranging from a low of 0.3°F (-17.6°C) to a high of 7.9°F (-13.4°C). Snowfall becomes a regular feature, covering the city's landscape. Weather in November »Weather in December
December, the final chapter, remains within the grip of stern winter conditions. Deadhorse experiences a frigid climate with temperatures dawdling between minus 13.4°F (-10.3°C) and minus 4.2°F (-15.4°C). Snowfall covers the cityscape completely, creating a white Christmas stereotype. Weather in December »Updated: Aug 28, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, with its average high-temperature of -7.1°F (-21.7°C) and an average low-temperature of -16.6°F (-27°C), holds the record as the coldest month.
The months with the highest humidity are January through March and December, with an average relative humidity of 93%.
January, April and December are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 0.16" (4mm) of rain.
In Deadhorse, during the entire year, the rain falls for 52.1 days and collects up to 3.62" (92mm) of precipitation.
January through June, August through December are months with snowfall in Deadhorse.
In Deadhorse, during the entire year, snow falls for 122.8 days and aggregates up to 10.24" (260mm) of snow.
The months with the coldest seawater are January through May, November and December, with an average ocean temperature of 28.4°F (-2°C).
The months with the lowest UV index are February through April, August through December, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from AKDT to AKST.
The months with the shortest days are June and December, with an average of 0h and 0min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 3.
The warmest period in Deadhorse is July, when temperatures fluctuate between an average high of 51.4°F (10.8°C) and a low of 40.6°F (4.8°C).
With an average relative humidity of 76%, July is the least humid month.
The only month without snowfall is July.
The month with the most rainfall in Deadhorse is August, when the rain falls for 11.8 days and typically aggregates up to 0.83" (21mm) of precipitation.
August and September, with an average ocean temperature of 35.6°F (2°C), are months with the warmest seawater.
The month with the longest days is August, with an average of 18h and 12min of daylight.
The month with the most sunshine is August, with an average of 6.6h of sunshine.
The month with the most snowfall is November, when snow falls for 17.5 days and typically aggregates up to 1.81" (46mm) of snow.
With an average of 0.4h of sunshine, December has the least sunshine of the year.
Average temperature
Deadhorse, AK
The warmest month (with the highest average high temperature) is July (51.4°F).
The month with the lowest average high temperature is January (-7.1°F).
The month with the highest average low temperature is July (40.6°F).
The coldest month (with the lowest average low temperature) is January (-16.6°F).
Average pressure
Deadhorse, AK
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
30.06"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.87"Hg - Average pressure in September:
29.84"Hg - Average pressure in October:
29.88"Hg - Average pressure in November:
29.93"Hg - Average pressure in December:
29.98"Hg
The month with the highest atmospheric pressure is March (30.07"Hg).
The month with the lowest atmospheric pressure is September (29.84"Hg).
Average wind speed
Deadhorse, AK
- Average wind speed in January:
10.6mph - Average wind speed in February:
11mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.8mph - Average wind speed in June:
11.1mph
- Average wind speed in July:
10.3mph - Average wind speed in August:
10.7mph - Average wind speed in September:
11.2mph - Average wind speed in October:
11.9mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is October (11.9mph).
The calmest month (with the lowest average wind speed) is May (9.8mph).
Average humidity
Deadhorse, AK
The months with the highest relative humidity are January, February, March and December (93%).
The month with the lowest relative humidity is July (76%).
Average rainfall
Deadhorse, AK
- Average rainfall in January:
0.16" - Average rainfall in February:
0.2" - Average rainfall in March:
0.2" - Average rainfall in April:
0.16" - Average rainfall in May:
0.24" - Average rainfall in June:
0.2"
- Average rainfall in July:
0.55" - Average rainfall in August:
0.83" - Average rainfall in September:
0.31" - Average rainfall in October:
0.35" - Average rainfall in November:
0.28" - Average rainfall in December:
0.16"
The wettest month (with the highest rainfall) is August (0.83").
The driest months (with the least rainfall) are January, April and December (0.16").
Average rainfall days
Deadhorse, AK
- Average rainfall days in January:
1.3 days - Average rainfall days in February:
0.7 days - Average rainfall days in March:
2.5 days - Average rainfall days in April:
3.8 days - Average rainfall days in May:
4 days - Average rainfall days in June:
5.1 days
- Average rainfall days in July:
10.2 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
7 days - Average rainfall days in October:
4.1 days - Average rainfall days in November:
0.8 days - Average rainfall days in December:
0.8 days
The month with the highest number of rainy days is August (11.8 days).
The month with the least rainy days is February (0.7 days).
Average snowfall
Deadhorse, AK
- Average snowfall in January:
0.79" - Average snowfall in February:
0.91" - Average snowfall in March:
0.71" - Average snowfall in April:
0.83" - Average snowfall in May:
0.87" - Average snowfall in June:
0.35"
The month with the highest snowfall is November (1.81").
The month with the least snowfall is July (0").
Average snowfall days
Deadhorse, AK
- Average snowfall days in January:
13.1 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
13.9 days - Average snowfall days in April:
12.8 days - Average snowfall days in May:
9.6 days - Average snowfall days in June:
2.4 days
- Average snowfall days in July:
0.2 days - Average snowfall days in August:
2.1 days - Average snowfall days in September:
8.5 days - Average snowfall days in October:
15.5 days - Average snowfall days in November:
17.5 days - Average snowfall days in December:
14.4 days
The month with the highest number of snowfall days is November (17.5 days).
The month with the least snowfall days is July (0.2 days).
Average sea temperature
Deadhorse, AK
The best months for swimming (with the highest average sea temperature) are August and September (36°F).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May, November and December (28°F).
Average daylight / Average sunshine
Deadhorse, AK
- Average daylight in January:
1h and 30min - Average daylight in February:
7h and 18min - Average daylight in March:
11h and 48min - Average daylight in April:
16h and 24min - Average daylight in May:
9h and 24min - Average daylight in June:
0h and 0min
- Average daylight in July:
2h and 54min - Average daylight in August:
18h and 12min - Average daylight in September:
13h and 18min - Average daylight in October:
8h and 48min - Average daylight in November:
3h and 6min - Average daylight in December:
0h and 0min
The month with the longest days is August (Average daylight: 18h and 12min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in January:
0h and 48min - Average sunshine in February:
2h and 6min - Average sunshine in March:
3h and 30min - Average sunshine in April:
6h and 18min - Average sunshine in May:
2h and 42min - Average sunshine in June:
0h and 42min
- Average sunshine in July:
0h and 54min - Average sunshine in August:
6h and 36min - Average sunshine in September:
4h and 18min - Average sunshine in October:
3h and 6min - Average sunshine in November:
1h and 6min - Average sunshine in December:
0h and 24min
The month with the most sunshine is August (Average sunshine: 6h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days
Deadhorse, AK
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
20 days - Average sunshine days in April:
19.1 days - Average sunshine days in May:
18.7 days - Average sunshine days in June:
21 days
- Average sunshine days in July:
17.9 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
14 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
15 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is June (21 days).
The month with the least sunshine days is September (14 days).
Average UV index
Deadhorse, AK
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are February, March, April, August, September, October, November and December (UV index 1).
Average cloud cover
Deadhorse, AK
The months with the most cloud cover are November and December (Cloud cover 76).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility
Deadhorse, AK
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, March and December (4mi).
