Climate and monthly weather forecast
Rolla, MO

Weather in January

January, the same as December, is another cold winter month in Rolla, Missouri, with an average temperature varying between 39.2°F (4°C) and 24.4°F (-4.2°C). The coldest month is January, with an average high-temperature of 39.2°F (4°C) and an average low-temperature of 24.4°F (-4.2°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Rolla, Missouri, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 28°F (-2.2°C). In February, the average high-temperature is almost the same as in January - a frosty 43.5°F (6.4°C). Weather in February »

Weather in March

March, the first month of the spring in Rolla, is a fresh month, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 37.9°F (3.3°C). In Rolla, Missouri, the average high-temperature in March rises from a frosty 43.5°F (6.4°C) in February to a fresh 55°F (12.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Rolla, Missouri, with an average temperature ranging between min 47.1°F (8.4°C) and max 66.2°F (19°C). In April, the average high-temperature increases from a fresh 55°F (12.8°C) in March to an enjoyable 66.2°F (19°C). Weather in April »

Weather in May

May, the last month of the spring in Rolla, is a moderately hot month, with an average temperature varying between 76.3°F (24.6°C) and 55.9°F (13.3°C). In May, the average high-temperature increases from a comfortable 66.2°F (19°C) in April to a warm 76.3°F (24.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Rolla, Missouri, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 65.3°F (18.5°C). In Rolla, Missouri, the average high-temperature in June increases from a warm 76.3°F (24.6°C) in May to a tropical 86.5°F (30.3°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Rolla, Missouri, with an average temperature varying between 89.1°F (31.7°C) and 67.8°F (19.9°C). With an average high-temperature of 89.1°F (31.7°C) and an average low-temperature of 67.8°F (19.9°C), July is the warmest month. In July, the average heat index is computed to be a blistering 105.8°F (41°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Rolla, Missouri, with an average temperature ranging between max 87.3°F (30.7°C) and min 65.8°F (18.8°C). In Rolla, the average high-temperature in August is practically the same as in July - a still tropical 87.3°F (30.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Rolla, Missouri, with an average temperature fluctuating between 59°F (15°C) and 80.4°F (26.9°C). In September, the average high-temperature slightly decreases from a tropical 87.3°F (30.7°C) in August to a moderately hot 80.4°F (26.9°C). Weather in September »

Weather in October

October, like September, in Rolla, Missouri, is another comfortable autumn month, with an average temperature varying between 66°F (18.9°C) and 48°F (8.9°C). In Rolla, the average high-temperature in October plummets from a moderately hot 80.4°F (26.9°C) in September to a comfortable 66°F (18.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Rolla, is also a fresh month, with an average temperature ranging between max 53.6°F (12°C) and min 37.2°F (2.9°C). In November, the average high-temperature drops from an enjoyable 66°F (18.9°C) in October to a fresh 53.6°F (12°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Rolla, Missouri, with an average temperature fluctuating between 43.2°F (6.2°C) and 29.3°F (-1.5°C). In December, the average high-temperature drops from a fresh 53.6°F (12°C) in November to a frosty 43.2°F (6.2°C). Weather in December »
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FAQ

What is the coldest month in Rolla?

With an average high-temperature of 39.2°F (4°C) and an average low-temperature of 24.4°F (-4.2°C), January is the coldest month.

How many days does it rain in Rolla?

Throughout the year, there are 147.2 rainfall days, and 31.02" (788mm) of precipitation is accumulated.

When does it snow in Rolla?

Months with snowfall in Rolla, Missouri, are January through April, October through December.

How much does it snow in Rolla?

Throughout the year, in Rolla, there are 24.7 snowfall days, and 11.1" (282mm) of snow is accumulated.

When is the lowest UV index in Rolla?

The months with the lowest UV index in Rolla, Missouri, are January, February, November and December, with an average maximum UV index of 2.

When does it snow the most in Rolla?

The month with the most snowfall in Rolla is February, when snow falls for 6.8 days and typically aggregates up to 3.46" (88mm) of snow.

What is the month with the least sunshine in Rolla?

With an average of 4.7h of sunshine, February has the least sunshine of the year in Rolla.

What are the most humid months in Rolla?

The months with the highest humidity in Rolla are March and May, with an average relative humidity of 77%.

When is Daylight Saving Time (DST) in Rolla?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Rolla?

May is the month with the most rainfall in Rolla, Missouri. Rain falls for 17.8 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow in Rolla?

In Rolla, Missouri, snow does not fall in May through September.

When is 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?

The month with the longest days in Rolla is June, with an average of 14h and 45min of daylight.

What month has the most sunshine in Rolla?

June has the most sunshine of the year in Rolla, with an average of 10.6h of sunshine.

What is the warmest month in Rolla?

July is the warmest month, with an average high-temperature of 89.1°F (31.7°C) and an average low-temperature of 67.8°F (19.9°C).

What is the least humid month in Rolla?

With an average relative humidity of 72%, October is the least humid month in Rolla, Missouri.

What is the driest month in Rolla?

November is the month with the least rainfall in Rolla, Missouri. Rain falls for 9.3 days and accumulates 1.65" (42mm) of precipitation.

What is the month with the shortest days in Rolla?

December has the shortest days of the year in Rolla, Missouri, with an average of 9h and 35min of daylight.

Average pressure
Rolla, MO

Average pressure - Rolla, MO

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Rolla, MO

Average wind speed - Rolla, MO

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).

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Average humidity
Rolla, MO

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%).

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Average rainfall
Rolla, MO

Average rainfall - Rolla, MO

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is November (1.65").

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Average rainfall days
Rolla, MO

Average rainfall days - Rolla, MO

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).

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Average snowfall
Rolla, MO

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").

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Average snowfall days
Rolla, MO

Average snowfall days - Rolla, MO

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).

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Average daylight / Average sunshine
Rolla, MO

Average daylight / Average sunshine - Rolla, MO

The month with the longest days is June (Average daylight: 14h and 45min).
The month with the shortest days is December (Average daylight: 9h and 35min).

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).

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Average sunshine days
Rolla, MO

Average sunshine days - Rolla, MO

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index
Rolla, MO

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).

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Average visibility
Rolla, MO

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).

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