Climate and monthly weather forecastRiverton, UT
Climate and monthly weather forecast
The climate of Riverton
Centered in the state of Utah, the city of Riverton experiences a Humid Continental climate - characterized by a Dfb Köppen climate classification. This categorization entails no dry season coupled with the presence of warm summers.Throughout the year, temperatures typically fluctuate between a low of 17.1°F (-8.3°C) and a high of 85.6°F (29.8°C). July often sees the year's highest temperatures, peaking at 85.6°F (29.8°C), while January is typically the coldest month with temperatures falling to 17.1°F (-8.3°C). Meanwhile, both temperature and humidity contrast sharply - ranging from 85% relative humidity in January to 37% in July.
Rainfall in Riverton is relatively uniformly distributed, averaging between 0.31" (8mm) in June to 1.34" (34mm) in January. Nonetheless, the city also has a fair share of dry days, particularly in the summer months. Noteworthy are June and July, with respective 4.1 and 6.2 days of rainfall.
Snowfall primarily occurs from November to April, surging to 8.27" (210mm) in January before receding to negligible levels by May.
The Best Time to Visit Riverton
The period between May and September is considered the best time to visit Riverton, Utah. During this period, visitors can expect average high temperatures ranging from 63.7°F (17.6°C) in May to 83.3°F (28.5°C) in August and average low temperatures ranging from 41°F (5°C) in May to 59.5°F (15.3°C) in July. Bright, sunny days predominate, with daylight hours peaking at 15 in June from an average of 14.5 hours in May to 12.4 hours in September. These months also bring the least amount of rainfall, with the lowest measure of 0.31" (8mm) seen in June.The Worst Time to Visit Riverton
Travelers are generally advised against visiting Riverton between November and March due to challenging weather conditions. During these months, average high temperatures range from 44.8°F (7.1°C) in November to 32.5°F (0.3°C) in January, and average low temperatures range from 28.8°F (-1.8°C) in November to 17.1°F (-8.3°C) in January. With increasing snowfall that peaks at 8.27" (210mm) in January and shorter daylight hours that dwindle from 9.9 hours in November to 9.3 hours in December, exploring the city can be quite strenuous during winter.Spring Weather in Riverton
Spring season in Riverton, which extends from March to May, sees temperatures gradually rise from an average high of 52.7°F (11.5°C) in March to 63.7°F (17.6°C) in May and average lows lift from 34.3°F (1.3°C) to 41°F (5°C) in the same period. As the season progresses, the snowfall that marked the end of winter diminishes, and by May, negligible levels are recorded. Humidity also declines gradually, dropping from 61% in March to 51% in May. The onset of May heralds an increase in daylight hours and sunshine duration, both peaking at 14.5 and 11.2 hours, respectively.Summer Weather in Riverton
Summers in Riverton are warm and dry, with high temperatures reaching 85.6°F (29.8°C) in July and low temperatures dipping only as far as 59.5°F (15.3°C) in the same month. Rainfall records its lowest levels for the year, bottoming at 0.31" (8mm) in June, and the average relative humidity drops to 40% from June to July. The season enjoys extended daylight hours, providing up to 15 hours a day in June before slowly declining to 14.7 hours by July and 13.7 hours by August.Autumn Weather in Riverton
The autumn months from September to November see a gradual decrease in temperatures. Average high temperatures decrease from 74.3°F (23.5°C) in September to 45.3°F (7.4°C) in November, while average lows range from 50.5°F (10.3°C) to 28.8°F (-1.8°C) during the same timeframe. With the passing of each month, daylight hours and sunshine duration lessen incrementally, falling from 12.4 hours in September to 9.9 hours by November.Winter Weather in Riverton
Winter in Riverton spans from December through February, characterized by a drop in temperatures, significant snowfall and short daylight hours. Average high temperatures over this period decline from 33.1°F (0.6°C) in December to 32.5°F (0.3°C) in January, and average lows dip from 18.9°F (-7.3°C) to 17.1°F (-8.3°C) in January. Substantial snowfall occurs during this period, peaking at 8.27" (210mm) in January. The three-month period is marked by decreasing daylight hours, down from 9.3 hours in December to 9.7 hours in February, alongside reduced sunshine hours.Weather in January
"Beginning of a year in Riverton, Utah brings weather conditions marked significantly dominated by cold temperatures and snow. The highs float around 32.5°F (0.3°C) and can plunge as low as 17.1°F (-8.3°C). Snowfall is a frequent spectacle, rendering the landscape a beautiful winter wonderland. Weather in January »Weather in February
February carries forth the winter charm of January but does so with a slightly warmer touch. The snow blankets that painted the city in January begin to thin, indicating the approach of spring. With lows usually still in the frosty 22.1°F (-5.5°C), Riverton residents gear up in warm attire. Weather in February »Weather in March
March, the first month of the spring in Riverton, is a frosty month, with an average temperature varying between 28.9°F (-1.7°C) and 44.8°F (7.1°C). Riverton in March shows a temperature shift, moving from an average high of a cold 35.8°F (2.1°C) in February to a chilly 44.8°F (7.1°C). Weather in March »Weather in April
The playfulness of spring makes itself heartily felt in April. The temperatures in Riverton soar to even more pleasant realms, making outdoor activities highly enjoyable. The humidity dips further, rendering the atmosphere quite comfortable. Weather in April »Weather in May
May heralds the beginning of the long-awaited summer season in Riverton, with an increase in temperatures and sunshine hours. Pleasant weather marks this month, with temperatures escalating to 63.7°F (17.6°C), a notable rise from the preceding lower temperatures. Weather in May »Weather in June
June brings the heat in Riverton, marking some of the highest temperatures of the year. As summer gets into full swing, it’s common for residents to seek shade or participate in water activities to cool off. Relative humidity plunges to a comfortable 40%, signalling optimal conditions for outdoor exploration. Weather in June »Weather in July
July stands as the pinnacle of summer with the hottest temperatures reliably reaching up to 85.6°F (29.8°C), the highest recorded temperature for the year in Riverton. Outdoor festivities and water activities are the highlights during this peak summer month. Weather in July »Weather in August
August carries with it the heat of July, maintaining summer's grasp on Riverton. Despite the slight dip in temperatures, days remain blissfully hot and ideal for outdoor recreation. Occasional cool nights offer respite from the continual warmth. Weather in August »Weather in September
September starts painting a picture of autumn, with visible changes in weather conditions from those experienced in August. The city of Riverton begins its transformation with changing foliage colors. With the highs falling around 74.3°F (23.5°C), there is a significant drop in the intense summer heat. Weather in September »Weather in October
October registers the official arrival of autumn in Riverton. One can witness the city draped in a variety of rich fall colors, creating a picturesque view. The chilly winds start creeping in, signaling that winter is just around the corner. Weather in October »Weather in November
November in Riverton brings a tangible change in the weather scenarios, it ushers in the waning light of autumn and the beginning chill of the forthcoming winter. The average highs and lows for this month range from 45.3°F (7.4°C) to 28.8°F (-1.8°C), hinting at the imminent cold. Weather in November »Weather in December
The year in Riverton wraps up with December, bringing with it the cheer of winter and festive holidays. The most defining element of December is the fall in temperature, with highs reaching 33.1°F (0.6°C) and lows plunging to 18.9°F (-7.3°C). 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
January, with an average high of 32.5°F (0.3°C) and a low of 17.1°F (-8.3°C), signifies the coldest month of the year in Riverton, Utah.
January is the most humid month in Riverton, with an average relative humidity of 85%.
Throughout the year, in Riverton, there are 69.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall in Riverton. Snow falls for 9.7 days and accumulates 8.27" (210mm) of snow.
In Riverton, during the entire year, snow falls for 37.1 days and aggregates up to 28.94" (735mm) of snow.
The month with the least sunshine in Riverton, Utah, is January, with an average of 5.4h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
February is the month with the most rainfall. Rain falls for 5.4 days and accumulates 1.38" (35mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Riverton, Utah, 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.
May through September are months without snowfall.
June is the month with the least rainfall. Rain falls for 4.1 days and accumulates 0.31" (8mm) of precipitation.
June has the longest days of the year, with an average of 15h and 0min of daylight.
July, known for its average high temperature of 85.6°F (29.8°C) and an average low temperature of 59.5°F (15.3°C), is the warmest month.
With an average relative humidity of 37%, July is the least humid month.
July is the month with the highest UV index, with an average maximum UV index of 6.
The month with the most sunshine in Riverton, Utah, is August, with an average of 12h of sunshine.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Riverton, UT
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (32.5°F).
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure
Riverton, UT
- Average pressure in January:
30.27"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.89"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.22"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Riverton, UT
- Average wind speed in January:
4.9mph - Average wind speed in February:
6mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.6mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.9mph - Average wind speed in September:
5.7mph - Average wind speed in October:
5.6mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.5mph
The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity
Riverton, UT
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (37%).
Average rainfall
Riverton, UT
- Average rainfall in January:
1.34" - Average rainfall in February:
1.38" - Average rainfall in March:
0.83" - Average rainfall in April:
0.79" - Average rainfall in May:
0.51" - Average rainfall in June:
0.31"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.35" - Average rainfall in September:
0.59" - Average rainfall in October:
0.55" - Average rainfall in November:
0.71" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.31").
Average rainfall days
Riverton, UT
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
5.4 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
8.3 days - Average rainfall days in May:
6.5 days - Average rainfall days in June:
4.1 days
- Average rainfall days in July:
6.2 days - Average rainfall days in August:
5.3 days - Average rainfall days in September:
5.4 days - Average rainfall days in October:
4.5 days - Average rainfall days in November:
4.2 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is April (8.3 days).
The month with the least rainy days is June (4.1 days).
Average snowfall
Riverton, UT
The month with the highest snowfall is January (8.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Riverton, UT
- Average snowfall days in January:
9.7 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
4.1 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.2 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 days - Average snowfall days in November:
2.9 days - Average snowfall days in December:
8.9 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Riverton, UT
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
6h and 42min - Average sunshine in March:
8h and 12min - Average sunshine in April:
10h and 6min - Average sunshine in May:
11h and 12min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 6min - Average sunshine in October:
7h and 36min - Average sunshine in November:
6h and 48min - Average sunshine in December:
5h and 42min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days
Riverton, UT
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
20.2 days - Average sunshine days in April:
19.9 days - Average sunshine days in May:
23.4 days - Average sunshine days in June:
24 days
- Average sunshine days in July:
22.8 days - Average sunshine days in August:
23.1 days - Average sunshine days in September:
23.1 days - Average sunshine days in October:
24.9 days - Average sunshine days in November:
23.8 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is October (24.9 days).
The month with the least sunshine days is February (17.3 days).
Average UV index
Riverton, UT
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Riverton, UT
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility
Riverton, UT
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
