Climate and monthly weather forecast
Fairfax, IN

Weather in January

January, the same as December, in Fairfax, Indiana, is a freezing cold winter month, with an average temperature varying between 30.7°F (-0.7°C) and 19.2°F (-7.1°C). With an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 19.2°F (-7.1°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Fairfax, is a cold month, with an average temperature ranging between max 34.3°F (1.3°C) and min 22.3°F (-5.4°C). In February, the average high-temperature is relatively the same as in January - a cold 34.3°F (1.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Fairfax, Indiana, with an average temperature fluctuating between 31.6°F (-0.2°C) and 46°F (7.8°C). In March, the average high-temperature increases from a wintry 34.3°F (1.3°C) in February to a frosty 46°F (7.8°C). Weather in March »

Weather in April

April is a moderate spring month in Fairfax, Indiana, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.3°F (14.6°C). In Fairfax, the average high-temperature in April increases from a chilly 46°F (7.8°C) in March to a mild 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 ranging between max 70.3°F (21.3°C) and min 53.1°F (11.7°C). In May, the average high-temperature rises from a mild 58.3°F (14.6°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »

Weather in June

June, the first month of the summer in Fairfax, is a warm month, with an average temperature varying between 61°F (16.1°C) and 78.1°F (25.6°C). In June, the average high-temperature marginally rises 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, like June, in Fairfax, Indiana, is a moderately hot summer month, with an average temperature fluctuating between 81.1°F (27.3°C) and 63.9°F (17.7°C). July is the warmest month, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 63.9°F (17.7°C). In July, the average heat index is appraised at a tropical 86.7°F (30.4°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Fairfax, Indiana, with an average temperature ranging between min 61.3°F (16.3°C) and max 79.3°F (26.3°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 79.3°F (26.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Fairfax, is also a moderately hot month, with an average temperature ranging between max 73.9°F (23.3°C) and min 55.4°F (13°C). In September, the average high-temperature marginally drops from a moderately hot 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, like September, in Fairfax, Indiana, is another enjoyable autumn month, with an average temperature ranging between min 45.5°F (7.5°C) and max 61.3°F (16.3°C). In Fairfax, Indiana, the average high-temperature in October decreases from a warm 73.9°F (23.3°C) in September to an enjoyable 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 varying between 34.7°F (1.5°C) and 47.5°F (8.6°C). In November, the average high-temperature decreases from an enjoyable 61.3°F (16.3°C) in October to a chilly 47.5°F (8.6°C). Weather in November »

Weather in December

December, the first month of the winter in Fairfax, is still a cold month, with an average temperature fluctuating between 27°F (-2.8°C) and 36.5°F (2.5°C). In Fairfax, the average high-temperature in December drops from a chilly 47.5°F (8.6°C) in November to a wintry 36.5°F (2.5°C). Weather in December »
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FAQ

What is the coldest month in Fairfax?

With an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 19.2°F (-7.1°C), January is the coldest month in Fairfax.

What is the most humid month in Fairfax?

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

How many days does it rain in Fairfax?

Throughout the year, there are 151.9 rainfall days, and 23.39" (594mm) of precipitation is accumulated.

When does it snow in Fairfax?

January through May, October through December are months with snowfall in Fairfax, Indiana.

How many days does it snow in Fairfax?

In Fairfax, 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?

The month with the least rainfall is February, when the rain falls for 6.8 days and typically collects 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 13. 2022, at 2:00 am, Daylight Saving Time starts in Fairfax, Indiana, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month in Fairfax?

The month with the most rainfall in Fairfax is April, when the rain falls for 15.6 days and typically aggregates up to 2.95" (75mm) of precipitation.

When it does not snow in Fairfax?

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

When are the longest days in Fairfax?

June has the longest days of the year in Fairfax, with an average of 15h and 5min of daylight.

When is the highest UV index in Fairfax?

With an average maximum UV index of 6, June is the month with the highest UV index in Fairfax.

What is the warmest month in Fairfax?

The warmest month is July, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 63.9°F (17.7°C).

What month has the most sunshine in Fairfax?

With an average of 10.1h of sunshine, July has the most sunshine of the year.

What is the least humid month in Fairfax?

October is the least humid month in Fairfax, Indiana, 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 17min of daylight.

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

The month with the lowest UV index is December, 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 5min).
The month with the shortest days is December (Average daylight: 9h and 17min).

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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