Climate and monthly weather forecastSundance, WY
Climate and monthly weather forecast
The climate of Sundance
Rooted within the Humid Continental climate group, Sundance, Wyoming follows the Dfb classification of the Köppen climate model. This suggests no dry season in Sundance with summers tending to be warm. An array of weather conditions is usually observed in this region throughout the year, with specific patterns emerging in the temperature, humidity, rainfall, and snowfall statistics.Weather variance is one of the defining characters of Sundance, with temperature fluctuating from a dip of 10.8°F (-11.8°C) in February to a high of 79.2°F (26.2°C) in July. Humidity levels follow suit, ranging from 53% in August to 84% in February. Noteworthy is the absence of a definite precipitation-free month, with rainfall amounts varying from 2.68" (68mm) in June and July to 0.67" (17mm) in December. While rainfall is a constant possibility throughout the year, snowfall generally confines itself to months from November to April with peak inches of 8.82 in April.
Unique to Sundance climate are its daylight and sunshine hours. The city experiences the longest daylight hours (about 15.5 hours) in June and the shortest (around 8.9 hours) in December. Similarly, sunshine duration alters from a high of 11.8 hours in August to a low of 5.8 hours in January and December.
The best time to visit Sundance
Planning a visit to Sundance commands an understanding of its diverse climate. June, with its comfortable average high temperature of 70.9°F (21.6°C), stands as the most pleasant month in terms of temperature. June also brings the maximum daylight hours, welcoming tourists to make the most out of their outdoor exploring hours. Simultaneously, those enthusiastic about experiencing minimum rainfall should plan their visit during December or February, both receiving less than an inch of rainfall.The worst time to visit Sundance
Considering the city's hostile temperature lows, January and February could stand as less favorable months to visit Sundance. Temperatures plunge to 10.8°F (-11.8°C) in February, while January experiences similar cold conditions with temperatures falling to 12.2°F (-11°C). Moreover, these months exhibit maximum humid conditions, with February reaching up to 84% relative humidity. This combination of low temperature and high humidity may result in uncomfortable conditions for visitors.Spring weather in Sundance
Spring in Sundance arrives with a steady rise in temperatures. March sees a low of 23°F (-5°C), escalating to 39.6°F (4.2°C) by May. With the welcome departure of harsh winter chills, Spring also brings a surge in rainfall, recording up to 2.56" (65mm) in May. Snowfall, though decreasing, still prevails in Spring, gathering up to 8.82" (224mm) in April. A moderate increase in daylight hours from 12 in March to 14.8 in May brightens up the Spring season.Summer weather in Sundance
The Summer soul of Sundance expresses itself with highs soaring to 79.2°F (26.2°C) in July. Not only does the temperature increase, but a soft decline in the humidity rate from 69% in May to 55% in July also adds comfort to the season. Despite the warm conditions, rainfall is not in short supply during the summer months, with both June and July recording about 2.68" (68mm).Autumn weather in Sundance
Autumn in Sundance undergoes a slow cool-down in temperature, falling from a pleasant 68.5°F (20.3°C) in September to a brisk 38.1°F (3.4°C) in November. While humidity remains unchanged from the summer months, rainfall records a substantial decrease to 1.26" (32mm) in September, providing a clear respite from the consistent summer rains.Winter weather in Sundance
Winter presents the coldest phase of the annual weather cycle in Sundance. Temperature lows set an icy stage from December to February, dropping to 11.7°F (-11.3°C) in December and recovering slightly to 12.2°F (-11°C) in January. Snowfall records its height in winter, gathering 4.61" (117mm) in February. The minimal daylight duration of 8.9 hours in December further intensifies the winter severity, often marking it as a demanding season to endure.Weather in January
January in Sundance, Wyoming, carries a winter chill, setting this month up as one of the coldest in the year. The low temperatures of January, including the lowest temperature of 12.2°F (-11°C), pave the way for a significant amount of snowfall, turning the town into a picturesque winter wonderland. Weather in January »Weather in February
As the winter season in Sundance continues into February, there is little reprieve from the previous month's cold. Despite the noticeable increase in daylight hours, temperatures remain firmly rooted in winter. Comparatively, compared to the following month of March, the overall weather situation remains largely the same. Weather in February »Weather in March
March signals the onset of spring in Sundance, the cold grip of winter gradually loosening. Yet, with an average low temperature of 23°F (-5°C), March still remains a month of transition rather than complete relief. The anticipated arrival of April brings hope of warmer times amidst the lingering chill. Weather in March »Weather in April
April in Sundance signifies an evident transformation into spring, the weather trends steadily warming. The cold nights of the previous month give way to warmer nights with an average minimum temperature of 29.5°F (-1.4°C). As the month progresses towards May, Snow gradually gives way to rain, the landscape transforming under the onslaught of April showers. Weather in April »Weather in May
May brings with it a taste of summer amidst spring's full bloom in Sundance. Consuming 14.8 hours of the day, daylight illuminates the scenery, highlighting the lush landscapes birthed from April's sustained rainfall, which peaks at 2.56" (65mm). Weather in May »Weather in June
June brings the joy of summer to Sundance, complete with typically agreeable weather accompaniments. Daylight hours, the highest amongst the year, allow for outdoor activities and ample enjoyment of the summer scenery. In contrast to the weather in May, rainfall in June slightly increases, totaling 2.68" (68mm), promising the occasional summer shower. Weather in June »Weather in July
July is heart of the summer season in Sundance, often characterized by clear skies and warm temperatures. The thermometer peaks with a high average of 79.2°F (26.2°C), establishing July as the hottest month of the year. The weather transition from July to August shows minimal changes, with August mirroring its predecessor in most measures. Weather in July »Weather in August
August continues the trend set by July, the warm weather prevailing in Sundance. With little variation from the previous month, the weather remains conducive for outdoor experiences. As September approaches, subtle changes begin creeping into the weather patterns, notably the gradual shortening of days. Weather in August »Weather in September
September in Sundance introduces the soft melodies of fall, the warm hues replacing the vibrant shades of summer. A notable shift from the 77.2°F (25.1°C) average high experienced in August, September presents a cooler facade. Weather in September »Weather in October
October brings with it the full force of the fall season in Sundance. The bright hues of summer having faded, October homes the vibrancy of autumn's color palette. There is a sense of anticipation in the air for November, known to introduce the initial whispers of winter. Weather in October »Weather in November
The last month of the autumn, November, is cold month in Sundance, Wyoming, with an average temperature ranging between min 22.3°F (-5.4°C) and max 38.1°F (3.4°C). The start of November involves a temperature drop, moving from a cool 50°F (10°C) in October to a wintry 38.1°F (3.4°C). Weather in November »Weather in December
December in Sundance paints a picture straight out of a winter postcard. Historically, December matches January's weather trends, characterized by an average minimum temperature of 11.7°F (-11.3°C). The increased snowfall makes way for a host of winter activities, the town reveling in its winter coat. Weather in December »Updated: Feb 14, 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
In Sundance, during the entire year, the rain falls for 123.2 days and collects up to 19.37" (492mm) of precipitation.
January through June, September through December are months with snowfall.
Throughout the year, in Sundance, Wyoming, there are 80.3 snowfall days, and 41.73" (1060mm) of snow is accumulated.
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
February is the most humid month in Sundance, with an average relative humidity of 84%.
With an average of 5.6h of sunshine, February has the least sunshine of the year.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most snowfall in Sundance is April, when snow falls for 10.6 days and typically aggregates up to 8.82" (224mm) of snow.
The wettest months are June and July, with an average 2.68" (68mm) of rainfall.
With an average of 15h and 30min of daylight, June has the longest days of the year in Sundance.
The months with the highest UV index are June through August, with an average maximum UV index of 5.
July is the month that records the highest temperatures in Sundance, with averages ranging from a high of 79.2°F (26.2°C) to a low of 57.7°F (14.3°C).
July and August are months without snowfall in Sundance.
The months with the lowest humidity are August and September, with an average relative humidity of 53%.
The month with the most sunshine is August, with an average of 11.8h of sunshine.
In Sundance, December is known for its average lowest temperatures, reaching a high of 26.2°F (-3.2°C) and a low of 11.7°F (-11.3°C).
The month with the least rainfall in Sundance is December, when the rain falls for 4.3 days and typically collects 0.67" (17mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Sundance, WY
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.2°F).
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (10.8°F).
Average pressure
Sundance, WY
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.13"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Sundance, WY
- Average wind speed in January:
8.7mph - Average wind speed in February:
8.5mph - Average wind speed in March:
9.1mph - Average wind speed in April:
10.3mph - Average wind speed in May:
9.6mph - Average wind speed in June:
9.1mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
7.8mph - Average wind speed in September:
8.6mph - Average wind speed in October:
9.6mph - Average wind speed in November:
8.7mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity
Sundance, WY
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (53%).
Average rainfall
Sundance, WY
- Average rainfall in January:
0.75" - Average rainfall in February:
0.71" - Average rainfall in March:
1.22" - Average rainfall in April:
2.09" - Average rainfall in May:
2.56" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.6" - Average rainfall in September:
1.26" - Average rainfall in October:
1.46" - Average rainfall in November:
0.71" - Average rainfall in December:
0.67"
The wettest months (with the highest rainfall) are June and July (2.68").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days
Sundance, WY
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
7.6 days - Average rainfall days in April:
12.7 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
10 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
4.3 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (3.7 days).
Average snowfall
Sundance, WY
- Average snowfall in January:
4.33" - Average snowfall in February:
4.61" - Average snowfall in March:
5.91" - Average snowfall in April:
8.82" - Average snowfall in May:
3.86" - Average snowfall in June:
0.12"
The month with the highest snowfall is April (8.82").
The months with the least snowfall are July and August (0").
Average snowfall days
Sundance, WY
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
12.4 days - Average snowfall days in March:
10.3 days - Average snowfall days in April:
10.6 days - Average snowfall days in May:
4 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.8 days - Average snowfall days in October:
8.3 days - Average snowfall days in November:
9.3 days - Average snowfall days in December:
11.7 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Sundance, WY
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
5h and 36min - Average sunshine in March:
7h and 42min - Average sunshine in April:
9h and 12min - Average sunshine in May:
10h and 6min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 24min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 24min - Average sunshine in December:
5h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days
Sundance, WY
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
10.6 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
9.7 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
10 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.7 days).
Average UV index
Sundance, WY
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover
Sundance, WY
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility
Sundance, WY
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
