Union Star
Missouri, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Union Star, MO

January, like December, in Union Star, Missouri, is a wintry winter month, with average temperature fluctuating between 34.2°F (1.2°C) and 20.3°F (-6.5°C). The coldest month is January, with an average high-temperature of 34.2°F (1.2°C) and an average low-temperature of 20.3°F (-6.5°C). Weather in January »

The last month of the winter, February, is another cold month in Union Star, Missouri, with average temperature fluctuating between 23.5°F (-4.7°C) and 38.3°F (3.5°C). In Union Star, the average high-temperature is practically the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

The first month of the spring, March, is a cool month in Union Star, Missouri, with average temperature varying between 52°F (11.1°C) and 35.2°F (1.8°C). In March, the average high-temperature rises, from a wintry 38.3°F (3.5°C) in February, to a cool 52°F (11.1°C). Weather in March »

April is a comfortable spring month in Union Star, Missouri, with temperature in the range of an average high of 62.8°F (17.1°C) and an average low of 44.4°F (6.9°C). In Union Star, Missouri, the average high-temperature in April increases, from a cool 52°F (11.1°C) in March, to an enjoyable 62.8°F (17.1°C). Weather in April »

May, the last month of the spring, in Union Star, is an agreeable month, with average temperature ranging between min 55.2°F (12.9°C) and max 72.1°F (22.3°C). In May, the average high-temperature rises, from a comfortable 62.8°F (17.1°C) in April, to a pleasant 72.1°F (22.3°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Union Star, Missouri, with average temperature fluctuating between 64.9°F (18.3°C) and 82.6°F (28.1°C). In June, the average high-temperature rises, from a pleasant 72.1°F (22.3°C) in May, to a warm 82.6°F (28.1°C). Weather in June »

July, the same as June, is a moderately hot summer month in Union Star, Missouri, with average temperature ranging between min 67.6°F (19.8°C) and max 85.5°F (29.7°C). The warmest month is July, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 67.6°F (19.8°C). In July, the average heat index is appraised at a torrid 97.2°F (36.2°C). Weather in July »

The last month of the summer, August, is another warm month in Union Star, Missouri, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 64.6°F (18.1°C). In Union Star, Missouri, the average high-temperature in August is essentially the same as in July - a still moderately hot 83.8°F (28.8°C). Weather in August »

September, the first month of the autumn, in Union Star, is also a moderately hot month, with average temperature fluctuating between 57.9°F (14.4°C) and 77.5°F (25.3°C). In Union Star, the average high-temperature slightly decreases, from 83.8°F (28.8°C) in August, to a still warm 77.5°F (25.3°C). Weather in September »

October, the same as September, is another comfortable autumn month in Union Star, Missouri, with average temperature ranging between max 63.5°F (17.5°C) and min 46.4°F (8°C). In October, the average high-temperature decreases, from a warm 77.5°F (25.3°C) in September, to a comfortable 63.5°F (17.5°C). Weather in October »

November, the last month of the autumn, in Union Star, is also a fresh month, with temperature in the range of an average high of 50.9°F (10.5°C) and an average low of 35.1°F (1.7°C). In Union Star, Missouri, the average high-temperature in November drops, from an enjoyable 63.5°F (17.5°C) in October, to a cool 50.9°F (10.5°C). Weather in November »

The first month of the winter, December, is also a wintry month in Union Star, Missouri, with average temperature fluctuating between 25°F (-3.9°C) and 38.3°F (3.5°C). In Union Star, the average high-temperature in December drops, from a fresh 50.9°F (10.5°C) in November, to a wintry 38.3°F (3.5°C). Weather in December »

What is the coldest month in Union Star?

The coldest month in Union Star is January, with an average high-temperature of 34.2°F (1.2°C) and an average low-temperature of 20.3°F (-6.5°C).

How much does it rain in Union Star?

Throughout the year, in Union Star, Missouri, there are 132.3 rainfall days, and 27.28" (693mm) of precipitation is accumulated.

What is the driest month in Union Star?

January and February are months with the least rain when the rain falls for 3.8 days and typically aggregates up to 0.94" (24mm) of rain.

When does it snow in Union Star?

Months with snowfall in Union Star, Missouri, are January through May, October through December.

How many days does it snow in Union Star?

Throughout the year, there are 25.5 snowfall days, and 10.91" (277mm) of snow is accumulated.

When does it snow the most in Union Star?

January is the month with the most snowfall. Snow falls for 7 days and accumulates 3.43" (87mm) of snow.

What is the month with the least sunshine in Union Star?

The month with the least sunshine is January, with an average of 4.8h of sunshine.

When is the lowest UV index in Union Star?

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

What is the wettest month in Union Star?

May is the month with the most rainfall. Rain falls for 17.1 days and accumulates 4.02" (102mm) of precipitation.

What is the most humid month in Union Star?

With an average relative humidity of 79%, June is the most humid month in Union Star.

When it does not snow in Union Star?

In Union Star, Missouri, snow does not fall in June through September.

When are the longest days in Union Star?

With an average of 15h of daylight, June has the longest days of the year.

When is the highest UV index in Union Star?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the warmest month in Union Star?

The warmest month in Union Star is July, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 67.6°F (19.8°C).

What month has the most sunshine in Union Star?

July has the most sunshine of the year in Union Star, with an average of 10.3h of sunshine.

What are the least humid months in Union Star?

Months with the lowest humidity in Union Star are October and November, with an average relative humidity of 70%.

What is the month with the shortest days in Union Star?

December has the shortest days of the year in Union Star, with an average of 9.4h of daylight.
Average temperature - Union Star, MO
Average humidity - Union Star, MO
Average rainfall - Union Star, MO

The wettest month (with the highest rainfall) is May (102mm).
The driest months (with the least rainfall) are January and February (24mm).

Average rainfall days - Union Star, MO

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (3.8 days).

Average snowfall - Union Star, MO
Average snowfall days - Union Star, MO

The month with the highest number of snowfall days is February (7.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Union Star, MO

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 4.8h).

Average UV index - Union Star, MO