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Contents
- The climate of Rolla
- The best time to visit Rolla
- The worst time to visit Rolla
- Spring weather in Rolla
- Summer weather in Rolla
- Autumn weather in Rolla
- Winter weather in Rolla
- 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 Rolla
Occupying a geographical space in the large territory of the United States, Rolla, Missouri, sits in the interesting climatic zone identified as Cfa under the Köppen Climate classification. This translates into a prominent humid subtropical climate, characterized by no dry season. Throughout the year, the temperature can reach a high point of 89.1°F (31.7°C) in the sweltering months of summer while it dives to a chilly 24.4°F (-4.2°C) in the cold grip of winter.
The humidity levels generally range from 72% during the island's driest months to 77% when the wetter months roll around. Rainfall also varies greatly, reaching its peak in May at 3.98" (101mm) and falling to its lowest at 1.65" (42mm) in November. The number of rainfall days insignificantly waver from 7.4 days in January to as much as 17.8 in May. Snowfall is most significant from December to February, with January on average experiencing snowfall measuring 3.46" (88mm) over 6.8 days.
The daylight hours stretch between 9.6 hours a day in December to as much 14.8 hours a day during June. Correspondingly, the amount of sunshine varies too - visitors can enjoy as much as 10.6 hours of sunshine during June, and the darkest month, December, brings in around 5 hours of sunshine. Throughout the year, Rolla sees a mix of climatic expressions that combine to form a unique blend of weather conditions.
The humidity levels generally range from 72% during the island's driest months to 77% when the wetter months roll around. Rainfall also varies greatly, reaching its peak in May at 3.98" (101mm) and falling to its lowest at 1.65" (42mm) in November. The number of rainfall days insignificantly waver from 7.4 days in January to as much as 17.8 in May. Snowfall is most significant from December to February, with January on average experiencing snowfall measuring 3.46" (88mm) over 6.8 days.
The daylight hours stretch between 9.6 hours a day in December to as much 14.8 hours a day during June. Correspondingly, the amount of sunshine varies too - visitors can enjoy as much as 10.6 hours of sunshine during June, and the darkest month, December, brings in around 5 hours of sunshine. Throughout the year, Rolla sees a mix of climatic expressions that combine to form a unique blend of weather conditions.
The best time to visit Rolla
For those who prefer a warmer climate and extended daylight hours, June would serve as the best time to visit Rolla. With the highest temperatures of the year, ranging from 66.2°F (19°C) to 89.1°F (31.7°C), June offers a balmy and comfortable climate. The increased sunshine hours, stretching up to an average of 10.6 hours per day, allows ample time to explore and enjoy. The humidity is quite favorable at 74%, maintaining a comfortable balance.
The worst time to visit Rolla
Contrastingly, the chill of January potentially marks it as the least favored month for visiting Rolla. The temperatures plunge from 24.4°F (-4.2°C) to 39.2°F (4°C), accompanied by an average of 3.35" (85mm) of snowfall over a period of 7.4 days. The daylight is sparse, limited to 9.9 hours making it not very conducive to tourism.
Spring weather in Rolla
Spring in Rolla is marked by steadily rising temperatures as the remnants of winter recede. March, the start of spring, begins with slight chill temperatures varying from 37.9°F (3.3°C) to 55°F (12.8°C). As months proceed, April brings in warmer temperatures that range from 47.1°F (8.4°C) to 66.2°F (19°C), and the rainfall is usually around 3.82" (97mm). In May, the temperatures rise considerably, ranging from 55.9°F (13.3°C) to 76.3°F (24.6°C). The rainfall inches up to its highest for the year at 3.98" (101mm) over 17.8 days.
Summer weather in Rolla
Rolla's summer, which spans from June to August, is characterized by high heat and a pronounced humidity level of 74-75%. The mercury column in the thermometers can soar up to 89.1°F (31.7°C) in July but cool off to a comfortable average low of 65.3°F (18.5°C) to 67.8°F (19.9°C). Rainfall dips to a comfortable level of 3.03" (77mm) to 3.43" (87mm) contributing to a generally agreeable summer atmosphere.
Autumn weather in Rolla
Autumn ushers in a gradual decline in temperatures and shortened daylight hours. September retains mild heat with temperatures resting between 59°F (15°C) and 80.4°F (26.9°C). Rainfall slightly cools to 1.93" (49mm). October welcomes the chill in the air with temperatures falling to a range from 48°F (8.9°C) to 66°F (18.9°C) and rainfall at 2.4" (61mm). November sees temperatures dropping to 37.2°F (2.9°C) to 53.6°F (12°C) inviting the first hints of winter.
Winter weather in Rolla
Winter in Rolla extends from December to February with December temperatures dropping down to a biting 29.3°F (-1.5°C), reaching an average high of 43.2°F (6.2°C). Snowfall makes a significant surge in January, reaching a high of 3.46" (88mm) over 6.8 snowfall days. The temperatures continue to remain low in February from 28°F (-2.2°C) to 43.5°F (6.4°C), with daylight hours slowly increasing from the winter solstice. The winter season wraps up with a significant decrease in snowfall, standing just at 1.22" (31mm) in February.
Weather in January
January in Rolla, Missouri exhibits the wintery characteristics typical of the season, with crisp, cold temperatures as the norm. The humidity levels tend to rise, a factor that contributes to the frequent snowfalls this month. Weather in January »
Weather in February
Moving into February, the citizens of Rolla can expect slight improvements in the temperature, although it still remains cold. The snow continues to feature, albeit with less intensity than the previous month. The rain makes an appearance too, indicating a shift towards spring-like conditions, even as the frosty winter hangs on. Weather in February »
Weather in March
The cold grip of winter loosens in March, giving way to more varied weather conditions in Rolla. Occasional snow days could still occur, although these are fewer and are often succeeded by more rainfall. With improved temperatures, the daylight hours continue to increase, promising forthcoming blooms in the parks and gardens of the city. Weather in March »
Weather in April
Spring unfolds itself fully in April, with the weather in Rolla turning more pleasant. There's a significant increase in the length of days and sunshine hours, lifting the spirits of the community after the long winter. Showers are not uncommon, but they do not deter outdoor activities, with the fauna and flora of the city coming to life. Weather in April »
Weather in May
May marks the steady transition from spring to early summer in Rolla. As temperatures continue to rise, more outdoor activities become viable, with parks and picnic spots being filled with activity. Sunshine dominates, with a significant drop in cloud coverage compared to the earlier months. Weather in May »
Weather in June
Rolla embraces summer in June, with longer days favored by an increasing number of sunshine hours. June weather paints a picture of warm, sunny days perfect for outdoor activities like swimming, hiking, or barbecues in the park. Occasionally, the clouds form and showers grace the city, but they are few and far between. Weather in June »
Weather in July
July is the hottest month of the year in Rolla, offering the perfect place for sun lovers. Longer, sun-drenched days continue, providing ample opportunities for residents to enjoy summer activities. While rainfall is still a possibility, the hot weather is the most prominent feature of this month. Weather in July »
Weather in August
August continues with the prevailing hot weather pattern, although the heat gradually wanes as the month progresses. The longer days and lesser cloud coverage also contribute to the prevailing high temperatures. However, by the end of the month, the impending transition to fall can be felt in the air as daylight hours begin to shorten. Weather in August »
Weather in September
In September, Rolla begins the transition from summer to fall. There's a notable decrease in the length of the day, signaling the approaching season. The temperature also starts to fall, resulting in more comfortable weather. While sunshine still is prominent, rainfall becomes more frequent, providing precious hydration to the greening landscapes. Weather in September »
Weather in October
October brings the beautiful fall season to Rolla, colorizing the city with an array of warm colors. With the decreasing temperatures, longer nights, and an increase in rainfall, the conditions are ripe for a vibrant display of fall foliage that draws many admirers. Weather in October »
Weather in November
In November, Rolla residents witness the ending of fall and the beginning of winter manifesting in colder nights and shorter days. The vibrancy of the fall foliage begins to fade, leading to leaf fall that prepares trees for the winter. Weather in November »
Weather in December
December heralds the arrival of winter in Rolla. The temperatures continue to drop, captivating the city in a chilly grip. Rainfall becomes less, but snowfall drastically increases, frosting the city in sparkling white. December turns Rolla into a winter wonderland, paving the way for winter activities like sledding and snowman building. Weather in December »
Updated: Aug 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
What month is the coldest?
January, with its high-temperature average of 39.2°F (4°C) and a low-temperature average of 24.4°F (-4.2°C), is the coldest month.
How much does it rain?
In Rolla, during the entire year, the rain falls for 147.2 days and collects up to 31.02" (788mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow in Rolla?
In Rolla, during the entire year, snow falls for 24.7 days and aggregates up to 11.1" (282mm) of snow.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 6.8 days and accumulates 3.46" (88mm) of snow.
What is the month with the least sunshine?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
What is the most humid month?
March and May, with an average relative humidity of 77%, are most humid months.
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 May, when the rain falls for 17.8 days and typically aggregates up to 3.98" (101mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
What are the months with the highest UV index in Rolla?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Rolla?
June has the longest days of the year, with an average of 14h and 48min of daylight.
What month has the most sunshine?
June has the most sunshine of the year in Rolla, with an average of 10.6h of sunshine.
What time of the year is the hottest?
The month of July sees the average highest temperatures in Rolla, reaching 89.1°F (31.7°C) at the peak and 67.8°F (19.9°C) at the low.
What is the least humid month?
With an average relative humidity of 72%, October is the least humid month.
What is the driest month?
November is the month with the least rainfall. Rain falls for 9.3 days and accumulates 1.65" (42mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Rolla, MO
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (39.2°F).
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure
Rolla, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Rolla, MO
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7.3mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Rolla, MO
The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Rolla, MO
- Average rainfall in January:
1.69" - Average rainfall in February:
1.77" - Average rainfall in March:
2.72" - Average rainfall in April:
3.82" - Average rainfall in May:
3.98" - Average rainfall in June:
3.43"
- Average rainfall in July:
3.03" - Average rainfall in August:
2.68" - Average rainfall in September:
1.93" - Average rainfall in October:
2.4" - Average rainfall in November:
1.65" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days
Rolla, MO
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is December (7 days).
Average snowfall
Rolla, MO
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Rolla, MO
- Average snowfall days in January:
7.4 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.4 days - Average snowfall days in May:
0.1 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:
0.1 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rolla, MO
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Rolla, MO
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
19 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Rolla, MO
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Rolla, MO
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility
Rolla, MO
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Rolla, Missouri, USA
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