Climate and monthly weather forecast
Westlawn, IN

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The climate of Westlawn

Situated in the heart of the American Midwest, Westlawn, Indiana is characterized by a Dfa Köppen climate classification, also known as a humid continental climate showcasing a hot summer and no dry season. Shared by a substantial portion of the mid-latitudes of the northern hemisphere, this classification results from its geographical position.

Throughout the year, Westlawn experiences variations in climate parameters. High temperature ranges between 30.9°F (-0.6°C) in January and 81.1°F (27.3°C) in July while low temperature fluctuates from a chilly 19.4°F (-7°C) in January to a more comfortable 64°F (17.8°C) in July. The humidity stays relatively high throughout the year, with the peak reaching up to 83% in January, February and December.

A look at the rainfall pattern reveals that the area receives quite evenly distributed precipitation, varying from 0.79" (20mm) in February to 1.89" (48mm) in May. The number of rainfall days is also intriguing, as it reaches its zenith at 15.5 days in May.

Snow in Westlawn is typical for the winter months, with January measuring at 1.3" (33mm) and December at 0.87" (22mm). The unique aspects of this climate include a robust visibility of 6 miles throughout the year and the pressure maintains a narrow range from 29.93 in to 30.11 in.

The best time to visit Westlawn

Optimally, the best time to visit Westlawn would be from late spring to early summer. During these months the weather hovers between a high of 58.3°F (14.6°C) in April to a peak of 81.1°F (27.3°C) in July. The summer period is associated with the highest humidity level, but it also is the brightest season with up to 10 hours of sunshine per day in July. The daylight lasts between 13.3 hours in April and peaks at 15.1 hours in June. Overall, this period of the year provides pleasant weather conditions suitable for outdoor activities.

The worst time to visit Westlawn

The winter period from December to February may challenge the comfort of visitors, featuring low temperatures ranging from 19.4°F (-7°C) to 22.5°F (-5.3°C) and high temperatures only reaching from 30.9°F (-0.6°C) to 34.7°F (1.5°C). The winter months also record the highest snowfall - particularly in January with 1.3" (33mm). Limited daylight during winter, with only 9.3 hours in December and 9.6 hours in January, combined with cold temperatures make this period less suitable for visitors.

Spring weather in Westlawn

Spring in Westlawn heralds the end of the frigid winter temperatures. As the season progresses from March till May, the high temperature rises from 46.4°F (8°C) to 70.5°F (21.4°C), and the low temperature also increases from 31.8°F (-0.1°C) to 53.2°F (11.8°C). This surge in temperature is accompanied by an increase in rainfall, peaking at 1.89" (48mm) in May. The changes in weather parameters also include an extension in daylight hours from 12 hours in March to 14.5 hours in May.

Summer weather in Westlawn

During the summer months (June, July, and August), Westlawn experiences the warmest weather of the year. The temperature peaks in July, boasting a high of 81.1°F (27.3°C) and a low of 64°F (17.8°C). Although the rainfall levels drop compared to the spring months, the humidity stays fairly high. The daylight reaches its peak in June with 15.1 hours, making for long, sunny days with up to 10 hours of sunshine in July.

Autumn weather in Westlawn

In autumn (September to November), the climate in Westlawn starts to cool down. The high temperature decreases gradually from 73.9°F (23.3°C) in September to 47.5°F (8.6°C) in November. The low temperature also drops from 55.8°F (13.2°C) to 34.7°F (1.5°C) in the same period. The rainfall decreases from 1.1" (28mm) in September to 0.98" (25mm) in November, and the daylight hours shorten from 12.5 hours in September to 9.9 hours in November.

Winter weather in Westlawn

Winters in Westlawn (December to February) can be quite chilly with high temperatures dropping from 36.5°F (2.5°C) in December to 30.9°F (-0.6°C) in January, and low temperatures fluctuating between 27°F (-2.8°C) in December and 19.4°F (-7°C) in January. December and January also see the highest snowfall levels, with 0.87" (22mm) and 1.3" (33mm) respectively. The shorter daylight hours, ranging from 9.3 hours in December to 9.6 hours in January, underscore the arrival of winter.

Weather in January

January in Westlawn, Indiana, presents with it a rather chilly weather, given its position as the first month of the year. This period distinguishes itself as a winter month, with the day's average high temperature peeking at 30.9°F (-0.6°C) and dipping to as low as 19.4°F (-7°C). Weather in January »

Weather in February

The cold spell introduced in January continues in February, albeit with a slightly warmer climate. Westlawn, Indiana in February sees an interesting blend of winter's tail end, coupled with occasional hints of spring. Although the cold winter weather slightly tapers off, the winter elements remain present. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Westlawn, Indiana, with an average temperature ranging between min 31.8°F (-0.1°C) and max 46.4°F (8°C). March sees a temperature increase, moving from a wintry 34.7°F (1.5°C) in February to a frosty 46.4°F (8°C). Weather in March »

Weather in April

April in Westlawn, Indiana is a month that is much warmer and wetter than its predecessor March. The transition from winter to spring is fully realized, presenting a significant change in the weather pattern. Less snow is experienced during this month, signaling a departure from the winter season. Weather in April »

Weather in May

May in Westlawn, Indiana, serves as a proper introduction to summer with significant rises in temperature. The consistent increase in temperature, coupled with the relative humidity at 77%, highlights a change in seasons. The warmer weather invites residents to undertake more outdoor activities. Weather in May »

Weather in June

June ushers in the fullness of summer in Westlawn, Indiana, registering the longest daylight hours of the year. This period brings about longer, brighter, and warmer days. Sunscreen is a must-have as the UV index reaches 6, indicating a higher level of UV radiation. Weather in June »

Weather in July

Westlawn, Indiana, experiences the peak of summer in July, with temperatures reaching a high of 81.1°F (27.3°C). Casual attire and air conditioning become necessities for many residents during this month. Unsurprisingly, the city's parks and recreational spots often bustle with activity as residents seek to make the most of the summer weather. Weather in July »

Weather in August

August continues the warmth of summer in Westlawn, Indiana, yet it does indicate a slight taming of July's peak temperature. These subtropical conditions endure throughout the month, marking a blend of long sunny days and balmy nights. Weather in August »

Weather in September

September in Westlawn, Indiana, marks the transition from summer to autumn. The month stands out with a noticeable decrease in temperature and a decreasing humidity level of 79%. Although remnants of hot summer days still linger, the arrival of cooler nights signals the encroaching change of seasons. Weather in September »

Weather in October

October in Westlawn, Indiana, welcomes the full onset of fall, with significant reductions in temperature. The wearing of layers becomes a common trend among the residents as they respond to the cooler weather. The transformation of foliage into a mirage of red, orange, and yellow hints at the progression of fall. Weather in October »

Weather in November

November in Westlawn, Indiana, initiates the transition into winter, dramatically shedding the last vestiges of the autumn warmth. The decreasing temperatures necessitate the wearing of heavier clothing, from knitted sweaters to thermal jackets. Weather in November »

Weather in December

Come December, Westlawn, Indiana, embraces winter with the average high temperature dropping to 36.5°F (2.5°C). As the coldest month, more than warm coats and gloves become necessary to combat the chill. The festive atmosphere of the holiday season, though, seems to blend perfectly with the crisp weather, providing a picture-perfect backdrop for the twinkling Christmas lights. Weather in December »

Frequently asked questions

What is the coldest month?

In Westlawn, January is known for its average lowest temperatures, reaching a high of 30.9°F (-0.6°C) and a low of 19.4°F (-7°C).

What are the most humid months?

The months with the highest humidity in Westlawn are January, February and December, with an average relative humidity of 83%.

How much does it rain?

In Westlawn, during the entire year, the rain falls for 128.5 days and collects up to 15" (381mm) of precipitation.

When does it snow?

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

How much does it snow?

In Westlawn, during the entire year, snow falls for 32.5 days and aggregates up to 6.42" (163mm) of snow.

What is the month with the least sunshine?

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

What is the driest month?

February is the month with the least rainfall. Rain falls for 5.6 days and accumulates 0.79" (20mm) of precipitation.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 7.4 days and accumulates 2.05" (52mm) 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?

The month with the most rainfall is May, when the rain falls for 15.5 days and typically aggregates up to 1.89" (48mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days?

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

What is the month with the highest UV index?

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

What is the warmest month?

In Westlawn, the peak temperatures are generally noted in July, averaging a high of 81.1°F (27.3°C) and a low of 64°F (17.8°C).

What month has the most sunshine?

July has the most sunshine of the year in Westlawn, with an average of 10h of sunshine.

What is the least humid month?

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

What is the month with the shortest days in Westlawn?

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

When is the lowest UV index?

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

Average temperature
Westlawn, IN

Average temperature - Westlawn, 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 (30.9°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure
Westlawn, IN

Average pressure - Westlawn, 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).

Average wind speed
Westlawn, IN

Average wind speed - Westlawn, IN

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity
Westlawn, IN

Average humidity - Westlawn, IN

The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall
Westlawn, IN

Average rainfall - Westlawn, IN

The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days
Westlawn, IN

Average rainfall days - Westlawn, IN

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.4 days).

Average snowfall
Westlawn, IN

Average snowfall - Westlawn, IN

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Westlawn, IN

Average snowfall days - Westlawn, IN

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Westlawn, IN

Average daylight / Average sunshine - Westlawn, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days
Westlawn, IN

Average sunshine days - Westlawn, IN

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (12.5 days).

Average visibility
Westlawn, IN

Average visibility - Westlawn, IN

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

Westlawn, Indiana, USA

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