Climate and monthly weather forecast
Brighton, IA

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Weather in January

January, the same as December, in Brighton, Iowa, is a freezing cold winter month, with an average temperature varying between 28.8°F (-1.8°C) and 16.5°F (-8.6°C). In Brighton, the month of January is known for its lowest average temperatures, reaching a high of 28.8°F (-1.8°C) and a low of 16.5°F (-8.6°C). Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Brighton, Iowa, with an average temperature varying between 33.3°F (0.7°C) and 19.9°F (-6.7°C). In February, Brighton experiences a minor shift in meteorological conditions with average high-temperatures marked at a cold 33.3°F (0.7°C), closely mirroring the climate in January. Weather in February »

Weather in March

March, the first month of the spring in Brighton, is a frosty month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 47.5°F (8.6°C). The onset of March brings a temperature shift, with the average high-temperature moving from an icy 33.3°F (0.7°C) in February to a frosty 47.5°F (8.6°C). Weather in March »

Weather in April

April in Brighton, Iowa, is a mild spring month, with an average temperature fluctuating between 59.5°F (15.3°C) and 43°F (6.1°C). The start of April brings a rise in the average high-temperature, moving from a chilly 47.5°F (8.6°C) in March to a moderate 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in Brighton, is a pleasant month, with an average temperature ranging between min 53.8°F (12.1°C) and max 70.2°F (21.2°C). Brighton's transition into May is marked by a temperature shift, moving from a mild 59.5°F (15.3°C) in April to an agreeable 70.2°F (21.2°C). Weather in May »

Weather in June

June, the first month of the summer in Brighton, is a warm month, with an average temperature fluctuating between 79.5°F (26.4°C) and 63.1°F (17.3°C). Brighton, Iowa, in June sees a temperature change, with average high-temperatures moving from a pleasant 70.2°F (21.2°C) in May to a moderately hot 79.5°F (26.4°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Brighton, Iowa, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 82°F (27.8°C). The warmest time of the year is July, with temperatures averaging a high of 82°F (27.8°C) and a low of 65.1°F (18.4°C). The heat index value during July is calculated to be a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Brighton, is also a moderately hot month, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 81.1°F (27.3°C). Brighton's entry into August measures an average high-temperature of a still moderately hot 81.1°F (27.3°C), closely parallel to the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Brighton, Iowa, with an average temperature varying between 75.6°F (24.2°C) and 56.3°F (13.5°C). With the commencement of September, Brighton records a moderate temperature decline, with the average high easing from August's 81.1°F (27.3°C) to a still warm 75.6°F (24.2°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Brighton, Iowa, with an average temperature ranging between max 61.5°F (16.4°C) and min 45.3°F (7.4°C). In October, the average high-temperature goes from a warm 75.6°F (24.2°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Brighton, is also a frosty month, with an average temperature ranging between min 33.6°F (0.9°C) and max 47.3°F (8.5°C). The arrival of November signals a shift in temperature, down from a comfortable 61.5°F (16.4°C) in October to a frosty 47.3°F (8.5°C). Weather in November »

Weather in December

December, the first month of the winter in Brighton, is also a wintry month, with temperature in the range of an average high of 34.9°F (1.6°C) and an average low of 24.1°F (-4.4°C). Brighton's weather changes with the onset of December, slightly falling from a chilly 47.3°F (8.5°C) in November to a wintry 34.9°F (1.6°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Brighton?

The coldest period in Brighton, Iowa, is January, when temperatures fluctuate between an average high of 28.8°F (-1.8°C) and a low of 16.5°F (-8.6°C).

What are the most humid months in Brighton?

January and July, with an average relative humidity of 83%, are most humid months.

How many days does it rain in Brighton?

Throughout the year, there are 123.7 rainfall days, and 18.94" (481mm) of precipitation is accumulated.

When does it snow in Brighton?

January through April, October through December are months with snowfall in Brighton.

What is the snowiest month in Brighton?

January is the month with the most snowfall in Brighton. Snow falls for 8.9 days and accumulates 2.52" (64mm) of snow.

How much does it snow in Brighton?

In Brighton, Iowa, during the entire year, snow falls for 29.8 days and aggregates up to 7.99" (203mm) of snow.

What is the month with the least sunshine in Brighton?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

What is the month with the lowest UV index in Brighton?

January is the month with the lowest UV index, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Brighton?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Brighton, Iowa, 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 rainiest month in Brighton?

May is the month with the most rainfall in Brighton. Rain falls for 17 days and accumulates 2.91" (74mm) of precipitation.

When it does not snow in Brighton?

In Brighton, Iowa, snow does not fall in May through September.

When are the longest days in Brighton?

With an average of 15h and 6min of daylight, June has the longest days of the year in Brighton.

When is the highest UV index in Brighton?

The months with the highest UV index in Brighton are June and July, with an average maximum UV index of 6.

What month is the hottest in Brighton?

Brighton, Iowa, experiences its average highest temperatures in July, reaching a peak of 82°F (27.8°C) and a minimum of 65.1°F (18.4°C).

What month has the most sunshine in Brighton?

With an average of 10.2h of sunshine, July has the most sunshine of the year.

What is the least humid month in Brighton?

October is the least humid month in Brighton, with an average relative humidity of 72%.

What is the driest month in Brighton?

December is the month with the least rainfall. Rain falls for 5.8 days and accumulates 0.71" (18mm) of precipitation.

What is the month with the shortest days in Brighton?

The month with the shortest days in Brighton, Iowa, is December, with an average of 9h and 18min of daylight.

Average temperature
Brighton, IA

Average temperature - Brighton, IA

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.8°F).

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure
Brighton, IA

Average pressure - Brighton, IA

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Brighton, IA

Average wind speed - Brighton, IA

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity
Brighton, IA

Average humidity - Brighton, IA

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall
Brighton, IA

Average rainfall - Brighton, IA

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days
Brighton, IA

Average rainfall days - Brighton, IA

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.2 days).

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Average snowfall
Brighton, IA

Average snowfall - Brighton, IA

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Brighton, IA

Average snowfall days - Brighton, IA

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Brighton, IA

Average daylight / Average sunshine - Brighton, IA

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days
Brighton, IA

Average sunshine days - Brighton, IA

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (10.9 days).

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Average visibility
Brighton, IA

Average visibility - Brighton, IA

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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Brighton, Iowa, USA

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