Climate and monthly weather forecast
Fairfax, IN

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Weather in January

January, like December, is a freezing cold winter month in Fairfax, Indiana, with temperature in the range of an average low of 19.2°F (-7.1°C) and an average high of 30.7°F (-0.7°C). January proves to be the coldest month, recording an average maximum temperature of 30.7°F (-0.7°C) and a minimum temperature of 19.2°F (-7.1°C). Weather in January »

Weather in February

February, the last month of the winter in Fairfax, is a wintry month, with an average temperature varying between 34.3°F (1.3°C) and 22.3°F (-5.4°C). During February, Fairfax observes a subtle ascent to a wintry 34.3°F (1.3°C) from January's 30.7°F (-0.7°C) in the average high-temperature. Weather in February »

Weather in March

March, the first month of the spring in Fairfax, is a frosty month, with an average temperature varying between 31.6°F (-0.2°C) and 46°F (7.8°C). The onset of March brings a rise in the average high-temperature, elevating from an icy 34.3°F (1.3°C) in February to a frosty 46°F (7.8°C). Weather in March »

Weather in April

April in Fairfax, Indiana, is a mild spring month, with an average temperature ranging between max 58.3°F (14.6°C) and min 41.7°F (5.4°C). As Fairfax transitions into April, the average high-temperature is observed to rise from a frosty 46°F (7.8°C) in March to a refreshing 58.3°F (14.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Fairfax, Indiana, with an average temperature varying between 53.1°F (11.7°C) and 70.3°F (21.3°C). As May arrives, Fairfax's weather shows an increase in high-temperatures, moving from April's refreshing 58.3°F (14.6°C) to an agreeable 70.3°F (21.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Fairfax, Indiana, with an average temperature ranging between max 78.1°F (25.6°C) and min 61°F (16.1°C). The start of June is characterized by a subtle increase in the average high-temperature, transitioning from a pleasant 70.3°F (21.3°C) in May to a moderately hot 78.1°F (25.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Fairfax, Indiana, with an average temperature ranging between min 63.9°F (17.7°C) and max 81.1°F (27.3°C). July registers as the month with the highest average temperatures, reaching 81.1°F (27.3°C) at its peak and 63.9°F (17.7°C) at the lowest. July's mean heat index is appraised at a hot 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Fairfax, Indiana, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 79.3°F (26.3°C). August's arrival shows an average high-temperature of a still warm 79.3°F (26.3°C), hardly different from the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Fairfax, is still a warm month, with an average temperature varying between 55.4°F (13°C) and 73.9°F (23.3°C). September sees a slight reduction in average high-temperature, with a shift from 79.3°F (26.3°C) in August to a still warm 73.9°F (23.3°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Fairfax, Indiana, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 61.3°F (16.3°C). A moderate decline in the average high-temperature is seen during October, decreasing from a moderately hot 73.9°F (23.3°C) in September to a comfortable 61.3°F (16.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Fairfax, is also a frosty month, with an average temperature fluctuating between 34.7°F (1.5°C) and 47.5°F (8.6°C). November comes with a drop in the average high-temperature, falling from October's enjoyable 61.3°F (16.3°C) to a chilly 47.5°F (8.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Fairfax, Indiana, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 36.5°F (2.5°C). Fairfax's transition into December involves a shift in temperature, receding from a frosty 47.5°F (8.6°C) in November to a wintry 36.5°F (2.5°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Fairfax?

In Fairfax, January is known for its average lowest temperatures, reaching a high of 30.7°F (-0.7°C) and a low of 19.2°F (-7.1°C).

What is the most humid month in Fairfax?

January and February, with an average relative humidity of 84%, are most humid months in Fairfax.

How many days does it rain in Fairfax?

In Fairfax, during the entire year, the rain falls for 151.9 days and collects up to 23.39" (594mm) of precipitation.

When does it snow in Fairfax?

January through May, October through December are months with snowfall.

How much does it snow in Fairfax?

In Fairfax, Indiana, during the entire year, snow falls for 50 days and aggregates up to 12.68" (322mm) of snow.

What is the month with the least sunshine in Fairfax?

January has the least sunshine of the year in Fairfax, with an average of 3.3h of sunshine.

What is the driest month in Fairfax?

February is the month with the least rainfall in Fairfax. Rain falls for 6.8 days and accumulates 1.38" (35mm) of precipitation.

What is the snowiest month in Fairfax?

The month with the most snowfall in Fairfax, Indiana, is February, when snow falls for 12.7 days and typically aggregates up to 3.58" (91mm) of snow.

When is Daylight Saving Time (DST) in Fairfax?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Fairfax, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month in Fairfax?

April is the month with the most rainfall in Fairfax, Indiana. Rain falls for 15.6 days and accumulates 2.95" (75mm) of precipitation.

When it does not snow in Fairfax?

In Fairfax, snow does not fall in June through September.

When are the longest days in Fairfax?

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

What is the month with the highest UV index in Fairfax?

The month with the highest UV index is June, with an average maximum UV index of 6.

What are the warmest months in Fairfax?

In Fairfax, the peak temperatures are generally noted in July, averaging a high of 81.1°F (27.3°C) and a low of 63.9°F (17.7°C).

What month has the most sunshine in Fairfax?

The month with the most sunshine in Fairfax is July, with an average of 10.1h of sunshine.

What is the least humid month in Fairfax?

October is the least humid month, with an average relative humidity of 75%.

What is the month with the shortest days in Fairfax?

December has the shortest days of the year in Fairfax, Indiana, with an average of 9h and 18min of daylight.

When is the lowest UV index in Fairfax?

December is the month with the lowest UV index in Fairfax, Indiana, with an average maximum UV index of 1.

Average temperature
Fairfax, IN

Average temperature - Fairfax, IN

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.7°F).

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure
Fairfax, IN

Average pressure - Fairfax, IN

The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Fairfax, IN

Average wind speed - Fairfax, IN

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity
Fairfax, IN

Average humidity - Fairfax, IN

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).

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Average rainfall
Fairfax, IN

Average rainfall - Fairfax, IN

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.38").

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Average rainfall days
Fairfax, IN

Average rainfall days - Fairfax, IN

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall
Fairfax, IN

Average snowfall - Fairfax, IN

The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Fairfax, IN

Average snowfall days - Fairfax, IN

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Fairfax, IN

Average daylight / Average sunshine - Fairfax, IN

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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days
Fairfax, IN

Average sunshine days - Fairfax, IN

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (10.4 days).

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Average visibility
Fairfax, IN

Average visibility - Fairfax, IN

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

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Fairfax, Indiana, USA

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