Climate and monthly weather forecastWilliston, ND
Climate and monthly weather forecast
The climate of Williston
Williston, North Dakota, is located in a geographic domain characterized primarily by a BSk climate according to the Köppen climate classification. This classification reflects a mid-latitude steppe climate that exhibits considerable seasonal variability. Numerous weather components play a role in forming the yearly climate pattern, including temperature, humidity, rainfall, snowfall, daylight, and wind parameters.The mean high temperature ranges from 20.8°F (-6.2°C) in February to 83.1°F (28.4°C) in July, while the average low temperature has a range from 7°F (-13.9°C) in January and February to 61.3°F (16.3°C) in July. A marked variance in humidity is observed throughout the year, with the highest months being January and February (89% and 88% respectively) while the lowest is September (48%).
Rainfall averages span from 0.35" (9mm) in December to 2.05" (52mm) in June, with the corresponding rainy days numbers swinging from 2.5 days in December to 14.2 days in June. The city witnesses a considerable amount of snowfall from November to April, peaking at 3.07" (78mm) in February. On average, snowfall occurs over 12.3 days in February.
Williston enjoys daylight for around 8.4 hours per day in December, rising to about 16.0 hours in June. Sunshine hours also show variability from 4 hours per day in January and December to 11.6 hours in July. Moreover, the UV index fluctuates from 1 in the coldest months to 6 during the heart of summer.
The best time to visit Williston
Taking into account a variety of climatic elements such as temperature, rainfall, and sunshine hours, the best time to visit Williston falls between May and September. During these months, high temperatures hover between a comfortable 64.8°F (18.2°C) to 83.1°F (28.4°C), rainfall is relatively predictable, and daylight lasts for 14.3 to 16.0 hours. A noticeable feature during this period is the lowest percentage of cloud cover, thus offering clearer skies to visitors.The worst time to visit Williston
Weather conditions from November to March are less hospitable for visitors due to harsh winter conditions. Low temperatures range from 7°F (-13.9°C) to 22.5°F (-5.3°C), while the high temperatures remain between 21°F (-6.1°C) to 37.2°F (2.9°C). The relative humidity is also extremely high, rainfall decreases, and snowfall is quite significant leading to an increased number of snow days. This period also experiences the lowest daylight hours and sunshine duration, while the wind speed hikes up, causing lowered temperatures to feel even frostier.Spring weather in Williston
Spring in Williston, occurring between March and May, is characterized by a clear and distinct rise in temperatures, with highs increasing from 37.2°F (2.9°C) in March to 64.8°F (18.2°C) by the end of May. Corresponding low temperatures also increase from 22.5°F (-5.3°C) to 46.4°F (8°C). Rainfall increases significantly rising from 0.47" (12mm) in March to 1.69" (43mm) in May, while the daylight hours extend from 11.9 hours to 15.2 hours.Summer weather in Williston
From June to August, Williston experiences summer, with high temperatures fluctuating between 75°F (23.9°C) and 83.1°F (28.4°C). This period also has the highest low temperatures, varying from 55.4°F (13°C) to 61.3°F (16.3°C). The most amount of rainfall is recorded during this season, peaking at 2.05" (52mm) in June. Summer days are long, with sunshine extending up to 11.6 hours per day in July.Autumn weather in Williston
Autumn in Williston lasts from September to November. High temperatures decrease noticeably from 71.2°F (21.8°C) in September to 37.4°F (3°C) by November. The same applies to low temperatures that drop from 52.7°F (11.5°C) to 24.3°F (-4.3°C). Rainfall decreases progressively over this period from 1.61" (41mm) in September to 0.47" (12mm) in November.Winter weather in Williston
Winter months run from December through February in Williston with high temperatures plunging to a range between 21°F (-6.1°C) and 20.8°F (-6.2°C), while low temperatures drop as low as 7°F (-13.9°C). Snowfall is a prominent feature at this time, reaching up to 3.07" (78mm) in February spread over 12.3 snowfall days. Days are short with daylight duration varying from 8.4 hours to 10.3 hours.Weather in January
In Williston, North Dakota, January sets the scene for a winter wonderland. In this month, the low temperatures can get down to 7°F (-13.9°C), contributing to the accumulation of up to 2.44" (62mm) of snow. In fact, one can witness the spectacle of snowfall on 11.1 days of the month. Weather in January »Weather in February
February in Williston continues the winter narrative from January, albeit with a slight rise in temperatures. Notably, winters exhibit their full strength with snowfall on 12.3 days and accumulation leveling at 3.07" (78mm), making it the month with the highest frequency of snow days. Weather in February »Weather in March
March in Williston marks a notable transition from winter to spring. The whispering remnants of winter are perceptible, as the maximum temperatures still only reach 37.2°F (2.9°C). A melting pot of seasons, the city experiences snowfall on 7.8 days, while rainfall also makes a significant appearance of 0.47" (12mm). Weather in March »Weather in April
April in Williston sees a considerable shift towards warmer weather. The contrast to the previous month is palpable as rainfall replaces snowfall, reaching a noticeable 0.98" (25mm) over 9.8 days. Concomitantly, the daylight extends to 13.7 hours, illuminating the city with warming sunshine. Weather in April »Weather in May
May in Williston presents the first taste of summer, providing a relief from the long, cold winter months. One cannot ignore the high rainfall of 1.69" (43mm) on 13.4 days, as this month receives more precipitation. The transformation of the city is compelling with vibrant foliage and blooming flowers adorning the landscape, invigorated by the plentiful rains. Weather in May »Weather in June
June thrusts Williston into the heart of summer, replete with clear skies and abundant sunshine. The month achieves the highest UV index of 6, establishing itself as the start of the sunniest season. A sense of vibrancy is permeating the city as residents can enjoy outdoor activities in the extended daylight. Weather in June »Weather in July
July in Williston represent the apex of summer with its highest temperature of 83.1°F (28.4°C). During this time, the prominence of sunlight becomes unmissable, reaching a maximum of 11.6 hours per day. The city basks in this summer splendor, offering an ambiance ready for any outdoor pursuit. Weather in July »Weather in August
August weather in Williston exhibits similar temperature patterns to July, yet shows subtle transitional signs towards fall. Interesting to note, the maximum wind gust speeds of the year reach 13.7mph (22km/h). Moreover, the gradually shortening daylight hours and lessening humidity start to introduce the autumn feel. Weather in August »Weather in September
September in Williston serves as a gentle bridge from the high energy of summer to the serene entrance of fall. Arguably, an increase in rainfall to 1.61" (41mm) signifies a shift in seasonal patterns. As temperatures start to fall, the city embraces the first signs of autumn: crisp air, colorful leaves, and early twilight. Weather in September »Weather in October
October brings the full thrust of autumn to Williston. This period witnesses a drop in temperatures, but what's noteworthy is the month's minimal rainfall of 0.87" (22mm). The scenery throughout the city becomes a spectacle as the fall colors reach their peak. Weather in October »Weather in November
November in Williston ushers in the advent of winters with visible lower temperatures. A particular weather pattern to observe is the return of snowfall, accumulating to 2.01" (51mm). The city now falls under winter's chill, imposing a white blanket of snow on the ground. Weather in November »Weather in December
December in Williston welcomes the full arrival of winter, mirrored in the low temperatures and frequent snowfall. It stands out in the monthly weather pattern with the least rainfall of 0.35" (9mm). The snow-covered city shines under the festive lights, painting December with unmatched winter joy. Weather in December »Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the most humid month in Williston, with an average relative humidity of 89%.
In Williston, North Dakota, during the entire year, the rain falls for 94.7 days and collects up to 12.52" (318mm) of precipitation.
January through May, October through December are months with snowfall in Williston, North Dakota.
Throughout the year, in Williston, there are 53.3 snowfall days, and 13.86" (352mm) of snow is accumulated.
The coldest period in Williston tends to be February, when average temperatures fluctuate between a high of 20.8°F (-6.2°C) and a low of 7°F (-13.9°C).
February is the month with the most snowfall in Williston. Snow falls for 12.3 days and accumulates 3.07" (78mm) of snow.
February and December, with an average maximum UV index of 1, are months with the lowest UV index in Williston, North Dakota.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Williston, North Dakota, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The month with the most rainfall in Williston, North Dakota, is June, when the rain falls for 14.2 days and typically aggregates up to 2.05" (52mm) of precipitation.
June through September are months without snowfall.
With an average of 16h and 0min of daylight, June has the longest days of the year in Williston.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Williston, North Dakota.
Williston's July weather reaches an average high of 83.1°F (28.4°C) and an average low of 61.3°F (16.3°C), making it the warmest month.
July has the most sunshine of the year, with an average of 11.6h of sunshine.
The least humid month in Williston is August, with an average relative humidity of 48%.
The month with the least rainfall in Williston, North Dakota, is December, when the rain falls for 2.5 days and typically collects 0.35" (9mm) of precipitation.
With an average of 8h and 24min of daylight, December has the shortest days of the year.
With an average of 4h of sunshine, December has the least sunshine of the year in Williston, North Dakota.
Average temperature
Williston, ND
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (20.8°F).
The month with the highest average low temperature is July (61.3°F).
The coldest months (with the lowest average low temperature) are January and February (7°F).
Average pressure
Williston, ND
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.17"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Williston, ND
- Average wind speed in January:
10.1mph - Average wind speed in February:
8.9mph - Average wind speed in March:
10mph - Average wind speed in April:
11.1mph - Average wind speed in May:
10.4mph - Average wind speed in June:
10mph
- Average wind speed in July:
9.4mph - Average wind speed in August:
9.1mph - Average wind speed in September:
10mph - Average wind speed in October:
10.8mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (8.9mph).
Average humidity
Williston, ND
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (48%).
Average rainfall
Williston, ND
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.47" - Average rainfall in April:
0.98" - Average rainfall in May:
1.69" - Average rainfall in June:
2.05"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.14" - Average rainfall in September:
1.61" - Average rainfall in October:
0.87" - Average rainfall in November:
0.47" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days
Williston, ND
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
3.1 days - Average rainfall days in March:
6 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
13.4 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
10.3 days - Average rainfall days in September:
9.1 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
3.4 days - Average rainfall days in December:
2.5 days
The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is December (2.5 days).
Average snowfall
Williston, ND
- Average snowfall in January:
2.44" - Average snowfall in February:
3.07" - Average snowfall in March:
1.97" - Average snowfall in April:
1.34" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Williston, ND
- Average snowfall days in January:
11.1 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
7.8 days - Average snowfall days in April:
4 days - Average snowfall days in May:
0.6 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
2.5 days - Average snowfall days in November:
5.9 days - Average snowfall days in December:
9 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Williston, ND
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 24min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 42min - Average sunshine in March:
5h and 18min - Average sunshine in April:
7h and 42min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
10h and 48min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days
Williston, ND
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
15 days - Average sunshine days in March:
17.6 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
15.2 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
17.4 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index
Williston, ND
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Williston, ND
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 19).
Average visibility
Williston, ND
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
