Climate and monthly weather forecast
Franklin, IN

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The climate of Franklin

Positioned comfortably within the Midwest of the United States, Franklin belongs to the Humid subtropical, or Cfa, Köppen climate classification. As there is no dry season, humidity remains a constant companion throughout the year. Monthly relative humidity ranges from 74% to 82%. With clouds covering a percentage of sky varying between 31% and 59%, reliable precipitation falls all year round, with the highest rainfall of 3.7" (94mm) observed in May.

The town enjoys temperatures that span the full spectrum from quite mild to pleasantly warm, with recorded low temperatures fluctuating from a chilling 21.9°F (-5.6°C) in January, and climbing to a high of 82.6°F (28.1°C) in the month of July. Furthermore, Franklin does see its fair share of snow, but only towards the beginning and the end of a year - from December to February and a slight incidence in November. The rest of the year remains snow-free.

The wind is quite steady throughout the year ranging from 5.5mph (8.9km/h) to 9.5mph (15.3km/h), and visibility remains clear, at 6 miles all year-round, reducing slightly to 5 miles in July and August.

The best time to visit Franklin

For those who favor warm weather and ample daylight, look no further than the summer months. From June to August, temperatures remain comfortably perched between 79.9°F (26.6°C) to 82.6°F (28.1°C). During this time the town basks under maximum daylight, ranging from 14.4 hours in June, slightly dipping to 13.7 hours in August, providing travelers with ample opportunities to explore. With less rainfall compared to spring and more than 10 hours of sunshine each day this is the time to enjoy the outdoor beauty that Franklin has to offer.

The worst time to visit Franklin

Despite the presence of the festive season, winter can be a challenging time to visit Franklin. The months from December to February see temperatures oscillating between a low of 21.9°F (-5.6°C) and a high of 39.2°F (4°C). These colder months also bring along snowfall; reaching its peak in December with 2.24" (57mm). Furthermore, the amount of daylight is at its least, significantly reducing the number of daylight hours for exploration.

Spring weather in Franklin

Spring in Franklin is marked by warmer temperatures, with averages rising from 50.9°F (10.5°C) in March, up to a friendlier 72.1°F (22.3°C) by end of May. A notable spring feature is an increase in rainfall, peaking at 3.7" (94mm) in May. The installment of more daylight hours, from 12 hours in March to 14.4 hours in May, bring forth blooming flowers and lush greenery, transforming the town into a serene and vibrant landscape.

Summer weather in Franklin

Sun-soaked summer days boast an average temperature ranging from 76.1°F (24.5°C) to 82.6°F (28.1°C). June is the wettest of all summer months receiving about 3.07" (78mm) of rainfall. The town enjoys ample sunshine of 10 hours a day and extended daylight hours, encouraging a host of outdoor activities and relaxing evenings.

Autumn weather in Franklin

Autumn brings a brisk change in the air with temperatures plummeting from 76.1°F (24.5°C) in September, to a mild 50.2°F (10.1°C) in November. The days grow shorter as well, with daylight hours dwindling from 12.4 hours in September, to 10 hours by November. It's the perfect time to witness the fiery blaze of changing foliage and savor the tranquility of the season.

Winter weather in Franklin

With cold winds sweeping through the town, winter records the lowest temperatures of the year. The mercury hovers between 21.9°F (-5.6°C) to 39.2°F (4°C) from December to February. Snowfall, although not overwhelming, is a common feature, reaching a high of 2.24" (57mm) in December. Short daytime hours and reduced sunshine make it a less desirable time for travel. Winter in Franklin calls for cozy indoor activities, with the occasional venture out into the winter wonderland.

Weather in January

Franklin, Indiana fights through the classic Midwest chill as the new year unfolds. The temperatures oscillating between a low of 21.9°F (-5.6°C) at night to an average daytime high of 34.3°F (1.3°C), keep the environment quite frigid. Weather in January »

Weather in February

Unlike the preceding month, February hosts a slight uptick in temperatures, a trend that signifies the slow but steady transition towards spring. The average temperature extends from 25.5°F (-3.6°C) to 39.2°F (4°C), still cold, but somewhat less brutal. Weather in February »

Weather in March

In March, Franklin, Indiana finds itself striding more confidently towards spring. The monthly average temperatures, climbing from 35.2°F (1.8°C) to 50.9°F (10.5°C), bring a hint of warmth back to the landscape. Rainfall replaces snowfall as the primary precipitation form, serving as a clear herald of the shifting climate. Weather in March »

Weather in April

Prospering in the heart of spring, April witnesses a significant warm-up with temperatures leaping from 45.9°F (7.7°C) to 62.2°F (16.8°C). This period triggers growth and bloom throughout the local flora, painting the city with an array of lush colors. Weather in April »

Weather in May

The agreeable climate of May invites residents of Franklin, Indiana outdoors to bask in the typical springtime temps ranging from 55.8°F (13.2°C) to 72.1°F (22.3°C). The prevalence of sunnier, longer days encourages a plethora of outdoor activities while the moderate rainfall nurtures the verdant environment. Weather in May »

Weather in June

June acts as a threshold into summer, bringing along a considerable rise in mercury levels, which fluctuate between 63.5°F (17.5°C) to 79.9°F (26.6°C). The robust daylight hours, extending up to 14.9 hours, facilitate the indulgence in outdoor summer activities. Weather in June »

Weather in July

In the embrace of summer, July unfolds as the warmest month in Franklin, with the mercury soaring to a peak of 82.6°F (28.1°C) while dipping to a comfortable 65.3°F (18.5°C) on cooler days. Despite the continual summer brightness, an increased occurrence of rainfall gives residents a welcome respite. Weather in July »

Weather in August

In August, Franklin continues riding the wave of summer warmth with temperatures holding steady within the range of 63.5°F (17.5°C) to 81.5°F (27.5°C). The ample daylight hours and persistent sunshine illuminate the many facets of late-summer life in the city. Weather in August »

Weather in September

With September brings hints of nippy breezes interrupting the summer warmth with temperatures oscillating from 58.1°F (14.5°C) to 76.1°F (24.5°C). The landscape dresses in brilliant autumn hues, whilst daylight hours begin to shrink steadily. Weather in September »

Weather in October

October showcases the typical crisp, cool autumn climate of Franklin, Indiana with temperatures sliding between 47.3°F (8.5°C) to 63.7°F (17.6°C). The change in weather is accompanied by an illustrious display of fall foliage spreading a scenic charm across the city. Weather in October »

Weather in November

In November, residents of Franklin, Indiana prepare for the upcoming winter as a perceptible chill invades the air and temperatures fluctuate from 36.3°F (2.4°C) to 50.2°F (10.1°C). Gone are the bright autumn hues, replaced now by the stark, bare beauty of approaching winter. Weather in November »

Weather in December

December marks the return of significant winter cold, with Franklin, Indiana enduring temperatures ranging from 28.8°F (-1.8°C) to 39.7°F (4.3°C). The frequent snowfall, amounting to around 2.24" (57mm) over approximately 7.6 days, blankets the city in a typical winter landscape. Weather in December »
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January is the month when Franklin, Indiana, experiences its coldest temperatures, averaging a high of 34.3°F (1.3°C) and a low of 21.9°F (-5.6°C).

How much does it rain?

Throughout the year, there are 156.3 rainfall days, and 30.16" (766mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through April, October through December.

How many days does it snow?

In Franklin, during the entire year, snow falls for 34.2 days and aggregates up to 9.29" (236mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4h of sunshine.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.

What is the driest month?

February is the month with the least rainfall. Rain falls for 7.9 days and accumulates 1.85" (47mm) of precipitation.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 8 days and accumulates 2.28" (58mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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?

May is the month with the most rainfall. Rain falls for 17.9 days and accumulates 3.7" (94mm) of precipitation.

When it does not snow?

In Franklin, snow does not fall in May through September.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10h of sunshine.

What is the warmest month?

Temperature readings reach their annual highs in July, averaging 82.6°F (28.1°C) and a minimum average of 65.3°F (18.5°C).

What is the most humid month?

The months with the highest humidity are July and December, with an average relative humidity of 82%.

What is the least humid month?

With an average relative humidity of 74%, October is the least humid month in Franklin.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Franklin, IN

Average temperature - Franklin, IN

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure
Franklin, IN

Average pressure - Franklin, IN

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Franklin, IN

Average wind speed - Franklin, IN

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity
Franklin, IN

Average humidity - Franklin, IN

The months with the highest relative humidity are July and December (82%).
The month with the lowest relative humidity is October (74%).

Average rainfall
Franklin, IN

Average rainfall - Franklin, IN

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is February (1.85").

Average rainfall days
Franklin, IN

Average rainfall days - Franklin, IN

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7.9 days).

Average snowfall
Franklin, IN

Average snowfall - Franklin, IN

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Franklin, IN

Average snowfall days - Franklin, IN

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Franklin, IN

Average daylight / Average sunshine - Franklin, IN

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The months with the most sunshine are June and July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).

Average sunshine days
Franklin, IN

Average sunshine days - Franklin, IN

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (10.7 days).

Average UV index
Franklin, IN

Average UV index - Franklin, IN

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, October, November and December (UV index 2).

Average visibility
Franklin, IN

Average visibility - Franklin, IN

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

Franklin, Indiana, USA

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