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Contents
- The climate of Casselton
- The best time to visit Casselton
- The worst time to visit Casselton
- Spring weather in Casselton
- Summer weather in Casselton
- Autumn weather in Casselton
- Winter weather in Casselton
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Casselton
Casselton, North Dakota, is subject to a Dfb (humid continental, no dry season, warm summer) climate according to the Köppen climate classification. Situated in the eastern part of the state, it experiences significant seasonal variations in the weather.
Throughout the year, the temperature typically ranges from the lowest of 3.2°F (-16°C) in the winter months to the highest of 80.8°F (27.1°C) during the summer time. Climate indicators reveal a pattern of increasing humidity levels, peaking at 91% in the winter months, then decreasing to 62% during the fall.
Rainfall is quite prevalent over the course of the year in Casselton, with cumulative totals of up to 17.91" (455mm) annually. The area experiences the highest rainfall of 3.46" (88mm) in June, while the lowest rainfall is observed in January and February, each with just 0.55 and 0.63" (16mm) respectively. The presence of snowfall extends from January to April and then resumes from October to December, leaving only the summer months without any snow.
Throughout the year, the temperature typically ranges from the lowest of 3.2°F (-16°C) in the winter months to the highest of 80.8°F (27.1°C) during the summer time. Climate indicators reveal a pattern of increasing humidity levels, peaking at 91% in the winter months, then decreasing to 62% during the fall.
Rainfall is quite prevalent over the course of the year in Casselton, with cumulative totals of up to 17.91" (455mm) annually. The area experiences the highest rainfall of 3.46" (88mm) in June, while the lowest rainfall is observed in January and February, each with just 0.55 and 0.63" (16mm) respectively. The presence of snowfall extends from January to April and then resumes from October to December, leaving only the summer months without any snow.
The best time to visit Casselton
With warm and comfortable weather, the period from June to August stands out as the best time to visit Casselton. These summer months regularly maintain an average high temperature ranging from 71.8°F (22.1°C) to 80.8°F (27.1°C). July, notably, claims the highest temperature average at 80.8°F (27.1°C).
June to August period is also delightfully marked by the longest daylight hours of the year, ranging from 14.2 hours to 15.8 hours. With up to 10.9 hours of sunshine per day in July, these months ensure delightfully long and sunny days for visitors.
June to August period is also delightfully marked by the longest daylight hours of the year, ranging from 14.2 hours to 15.8 hours. With up to 10.9 hours of sunshine per day in July, these months ensure delightfully long and sunny days for visitors.
The worst time to visit Casselton
The weather conditions from December through February create rather unfavorable conditions for visiting Casselton. This period is marked by the year’s lowest temperature averages, dipping down to the lowest point of 3.2°F (-16°C) in January. Along with the frigid temperatures, these months are also witnesses to heaviest snowfall, mount up to 3.74" (95mm) in December.
In congruence with bleak weather conditions, the shortest daylight hours of the year occur between December and February, merely ranging from 8.6 hours to 10.3 hours daily. The lack of sufficient daylight adds to the challenging weather conditions encountered during this time.
In congruence with bleak weather conditions, the shortest daylight hours of the year occur between December and February, merely ranging from 8.6 hours to 10.3 hours daily. The lack of sufficient daylight adds to the challenging weather conditions encountered during this time.
Spring weather in Casselton
Springtime in Casselton, from March to May, rekindles warmth after the winter slumber. Temperatures gradually rise from a low average of 21.9°F (-5.6°C) in March to a mild 48.6°F (9.2°C) by the end of May. While snow continues to grace the town until April, the rate declines over the course of the spring months, eventually ceasing by May. Notable increase in daylight hours, extending to about 15.1 hours by the end of May, marks a distinct transition into brighter and warmer days.
Summer weather in Casselton
Summer in Casselton runs from June to August. Humidity levels rise to about 75% in June before decreasing again, and temperatures typically hover between 65.7°F (18.7°C) in early summer and 80.8°F (27.1°C) in late summer. While rain is fairly common during the summer months, snow is completely absent, making it the only period when snow does not occur. The daylight hours are the longest of the year during summer, peaking at up to 15.8 hours in June, ensuring plenty of time to enjoy the warmth and clear skies.
Autumn weather in Casselton
Autumn, from September to November, witnesses a significant drop in temperature from the warm summer months. From a pleasant high average of 71.8°F (22.1°C) in September, the average high drops to 37.6°F (3.1°C) by the end of November. Fresh bouts of snow begin in November, announcing the arrival of winter. Despite the falling temperatures and daylight hours, autumn still introduces some enjoyable weather before the winter chill sets in.
Winter weather in Casselton
The winter season in Casselton, extending from December to February, is characterized by harsh and cold conditions. The temperature averages slide down to their annual lows, reaching as low as 3.2°F (-16°C) in January. Regular snowfall and frigid temperatures envelop the area during this period, coupled with the year’s shortest daylight hours, ranging from 8.6 hours to 10.3 hours. Consequently, winter in Casselton can be quite severe and is generally the least hospitable time for visitors.
Weather in January
The beginning of the year in Casselton, North Dakota, sees weather at its frostiest. January's arctic climate is showcased in stats indicating an average low of 3.2°F (-16°C) and a high only peaking at 16.7°F (-8.5°C). Snow, a common January vision, dainty flakes descending in hushed tranquility and frosting the environment — enhances the tranquil, wintry mood. Weather in January »
Weather in February
February's weather conditions are a slight reprieve from the severity of a typical Casselton winter. Despite the moderate relief, the weather statistics still feature frost with temperatures ranging from 6.1°F (-14.4°C) to 19.8°F (-6.8°C). Weather in February »
Weather in March
As March unfolds, the city of Casselton ushers in the much-anticipated spring season. The temperatures climb marginally, peaking at a more tolerable 35.1°F (1.7°C) and promising the gradual melting away of winter’s icy shackles. Weather in March »
Weather in April
Casselton’s meteorological identity undergoes a transformation in April, segueing from frosty winter to vivacious spring. The warmer climate, defined by temperatures that escalate to a comfortable 51.1°F (10.6°C), heralds the arrival of blooming flowers and chirping birds. Weather in April »
Weather in May
In May, Casselton basks in the newfound energy of spring. The weather, showcased by high temperatures that escalate to 65.7°F (18.7°C), sets the stage for thriving flora and fauna. With the arrival of increased daylight hours and the explosion of blossoming plants, Casselton’s natural beauty truly comes alive. Weather in May »
Weather in June
Casselton, North Dakota, gleefully embraces the summer season in June. With the mercury soaring up to 74.5°F (23.6°C), the lively energy of summer sets in, marking an end to the wintry landscape of the previous months. The days are drenched in sunlight, culminating in gentle, warm evenings perfect for family barbecues and neighborhood get-togethers. Weather in June »
Weather in July
Come July, Casselton basks in the apex of summer glory. Characterized by average temperatures peaking at 80.8°F (27.1°C), it is undeniably the warmest month of the year. The warm temperatures accompany the high UV index, necessitating the wear of appropriate sun protection for those spending time outside. Weather in July »
Weather in August
Casselton's weather remains bracing in August, with the average temperature mirroring July's peak at 80.8°F (27.1°C). With such summery conditions continuing, the citizens enjoy extended daylight hours perfect for recreational activities. Weather in August »
Weather in September
The advent of September introduces a noticeable shift in Casselton's climatic conditions. The scenic allure of fall takes effect, accompanied by a significant dip in temperature to a high of 71.8°F (22.1°C). The local parks and streets begin their annual transformation, with the greenery giving way to an array of warm, vibrant colors. Weather in September »
Weather in October
Casselton's October weather ushers in the classic autumn ambiance. The chill in the air grows more apparent, with temperatures dropping to a brisk high of 54°F (12.2°C). As the night creeps in earlier with each passing day, the vibrant fall hues paint the city in a spectacle of orange and red. Weather in October »
Weather in November
Casselton transitions into winter in November, marked by the falling leaves and the delivery of the first snowfall. The temperature sees a drastic plunge, with the high descending to 37.6°F (3.1°C). The sight of snowflakes drifting down from the increasingly cloudy sky becomes a common sight, marking the impending arrival of the harsh North Dakota winter. Weather in November »
Weather in December
In December, the city of Casselton welcomes winter in full swing. The biting winter cold becomes tangible as temperatures plummet to an average high of only 20.8°F (-6.2°C). Snowflakes decorating window panes and the sight of breath fogging up in the cold air become an everyday occurrence. Weather in December »
Updated: Aug 18, 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
What are the coldest months?
The lowest temperatures in Casselton are recorded in January, with averages reaching a high of 16.7°F (-8.5°C) and a low of 3.2°F (-16°C).
What is the most humid month?
With an average relative humidity of 91%, January is the most humid month.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 2.5 days and typically collects 0.55" (14mm) of precipitation.
How much does it rain?
Throughout the year, there are 102.6 rainfall days, and 17.8" (452mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How much does it snow?
Throughout the year, there are 67 snowfall days, and 18.03" (458mm) of snow is accumulated.
What are the months with the least sunshine in Casselton?
The months with the least sunshine are January and December, with an average of 3.5h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
What is the wettest month?
The month with the most rainfall is June, when the rain falls for 15.9 days and typically aggregates up to 3.46" (88mm) of precipitation.
When it does not snow?
In Casselton, snow does not fall in June through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 48min of daylight.
What is the month with the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What part of the year is the hottest?
The warmest period is usually observed in July and August, with the average high-temperature peaking at 80.8°F (27.1°C).
What month has the most sunshine?
With an average of 10.9h of sunshine, July has the most sunshine of the year.
What is the least humid month?
The least humid month is September, with an average relative humidity of 62%.
What is the snowiest month?
December is the month with the most snowfall in Casselton. Snow falls for 15.6 days and accumulates 3.74" (95mm) of snow.
What is the month with the shortest days?
December has the shortest days of the year in Casselton, with an average of 8h and 36min of daylight.
Average temperature
Casselton, ND
The warmest months (with the highest average high temperature) are July and August (80.8°F).
The month with the lowest average high temperature is January (16.7°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (3.2°F).
Average pressure
Casselton, ND
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.17"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed
Casselton, ND
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.4mph - Average wind speed in May:
9.8mph - Average wind speed in June:
8.8mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8.1mph - Average wind speed in September:
9.8mph - Average wind speed in October:
10.8mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity
Casselton, ND
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (62%).
Average rainfall
Casselton, ND
- Average rainfall in January:
0.55" - Average rainfall in February:
0.63" - Average rainfall in March:
0.87" - Average rainfall in April:
1.46" - Average rainfall in May:
2.2" - Average rainfall in June:
3.46"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.69" - Average rainfall in September:
1.54" - Average rainfall in October:
1.93" - Average rainfall in November:
0.63" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Casselton, ND
- Average rainfall days in January:
2.5 days - Average rainfall days in February:
1.9 days - Average rainfall days in March:
8 days - Average rainfall days in April:
10.7 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
3 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.9 days).
Average snowfall
Casselton, ND
- Average snowfall in January:
3.43" - Average snowfall in February:
3.54" - Average snowfall in March:
2.72" - Average snowfall in April:
2.17" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Casselton, ND
- Average snowfall days in January:
14.8 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
9.8 days - Average snowfall days in April:
4.8 days - Average snowfall days in May:
0.4 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 days - Average snowfall days in October:
1.3 days - Average snowfall days in November:
7.5 days - Average snowfall days in December:
15.6 days
The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Casselton, ND
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 5min - Average sunshine in March:
4h and 5min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days
Casselton, ND
- Average sunshine days in January:
15.6 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
18.1 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
15.3 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (11 days).
Average UV index
Casselton, ND
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Casselton, ND
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility
Casselton, ND
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Casselton, North Dakota, USA
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