Climate and monthly weather forecast
Westfield, IN

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The climate of Westfield

Located in the Midwestern United States, Westfield, Indiana features a blend of hot summers and cold, snowy winters, typical of the humid continental climate without the dry season. This climate is classified as 'Dfa' under the Köppen climate classification. The presence of the Great Lakes to the north influences the weather features noticeably.

The average monthly temperatures fluctuate from 20.5°F (-6.4°C) to 81.5°F (27.5°C), a considerable range reflecting the four distinct seasons experienced in Westfield. Summer months, especially from June to August, are consistently warm, with temperatures peaking at 81.5°F (27.5°C) in July. The winter months witness temperatures plummeting to lows of 20.5°F (-6.4°C) in January.

Westfield receives an abundance of rainfall throughout the year, with the most significant precipitation recorded from April to June. On average, the city experiences between 16.8 and 13.8 rainfall days during these months. Consistent with most continental climates, winter months see a mixture of precipitation types, including snow. An average snowfall of 1.22" (31mm) in January and 1.38" (35mm) in December can be expected.

The sunlight hours vary considerably throughout the year too. As the Earth tilts on its Axis, daylight hours range from 9.4 hours in December to a generous 15 hours in June. Similarly, the mean monthly sunshine hours fluctuate from 4.1 hours in December, while it peaks to 10.1 hours in June and July, giving the locals and visitors ample daylight to enjoy outdoor activities.

The best time to visit Westfield

Given the diversity of the climate in Westfield, the best time to visit would depend on the activities one wishes to engage in. However, June to August tend to be the most favored period due to comfortable temperatures, ample daylight, and relatively lower humidity. You can expect average temperatures to range from 79.9°F (26.6°C) to 81.5°F (27.5°C), with daylight extending up to 15 hours, allowing abundant time for outdoor pursuits.

Moreover, during this period, Westfield experiences the maximum sunlight hours, averaging 10.1 a day. This is also the period with the lowest percentage of cloud cover, promoting clear, bright skies and making it ideal for outdoor enthusiasts and tourists who wish to explore the green spaces and recreational spots that Westfield boasts of.

The worst time to visit Westfield

January and February are considered the least favorable months to visit Westfield. This is when the city experiences its coldest temperatures, averaging between 20.5°F (-6.4°C) and 24.4°F (-4.2°C) respectively. In addition to the frigid temperatures, these months also witness light snowfall, with January receiving an average snowfall of 1.22" (31mm).

This season also provides fewer daylight hours, with an average of 9.7 hours in January and 10.7 hours in February. Therefore, these winter months may be less enticing for travelers, particularly for those not interested in winter sports.

Spring weather in Westfield

Spring is quite a pleasant season in Westfield, characterized by a moderate increase in temperatures and an abundance of rainfall. Temperatures in Spring (from March to May) steadily rise, ranging from 49.1°F (9.5°C) to 71.6°F (22°C).

A relatively high occurrence of rainfall days is observed, especially in May when you'll experience rain for approximately 16.8 days. So while the landscapes turn green and lush, it's wise to keep an umbrella at hand. The daylight hours also increase during spring, offering around 13.3 hours of daylight in May.

Summer weather in Westfield

Summers in Westfield (June to August) are warm and moderately humid, with temperatures usually ranging between 79.9°F (26.6°C) and 81.5°F (27.5°C). These months are marked by extended daylight hours that can go up to a generous 15 hours in June. This period also sees the maximum sunshine duration, with up to 10.1 hours of sunlight per day, enabling prolonged outdoor activities.

Despite summer being generally hot, Westfield witnesses a fair amount of rain during this period, with rainfall averaging between 1.89" (48mm) in June, tapering to 1.18" (30mm) in August.

Autumn weather in Westfield

Autumn, spanning from September to November, sees a gradual dip in temperatures and daylight hours in Westfield. Average temperatures decrease from 75.4°F (24.1°C) in September to 48.9°F (9.4°C) in November. Daylight hours also reduce from 12.4 hours in September to 10 hours in November.

Autumn rainfall is relatively lower than in the summer, with November recording an average of 0.83" (21mm). This season is also marked by the foliage turning into vibrant shades of yellow, orange, and red, enhancing the city's scenic beauty.

Winter weather in Westfield

Winter sets in from December, lasting through to February. During this period, the temperatures drop significantly, with the lower limit reaching 20.5°F (-6.4°C) in January. Unique to this season is the snowfall which the city experiences, with an average of 1.22" (31mm) in January and 1.38" (35mm) in December.

Daylight hours are limited during the winter months, with a minimum of 9.4 hours in December. However, despite the cold and reduced daylight, Westfield brims wondrously with festive spirit during these months.

Weather in January

In comparison to the balmy December, January in Westfield, Indiana sees a drop in temperatures. The noticeable chill is accompanied by a relative humidity of 83%, bringing with it a sensation of brisk cold. A layer of snow up to 1.22" (31mm) thick can be expected, making it the month with the second heaviest snowfall. Weather in January »

Weather in February

Following the chill of January, February brings with it a marginal rise in temperatures in Westfield. A consistent weather pattern of high relative humidity at 82% persists, driving the sensation of coldness. February witnesses a small decline in snowfall to 1.02" (26mm), indicating the early signs of the upcoming spring season. Weather in February »

Weather in March

March marks the transition into spring for Westfield, and with this transition, the weather changes quite noticeably. A significant increase in average temperatures heralds the clear onset of spring. The rain gauge typically reads 1.14" (29mm) in March, demonstrating an increased prevalence of rain showers. Weather in March »

Weather in April

Dawning the warmth of the spring season, April offers a refreshing change from the chilly first quarter of the year in Westfield. Temperatures continue their upward trend, and alongside, the weather becomes considerably wetter. With rainfall increasing to an average of 1.65" (42mm), April is visibly more rain-drenched than the preceding months. Weather in April »

Weather in May

As Westfield transitions to late spring, May brings with it warmer temperatures. Weather conditions take a decisive turn, with consistent rainfall of 1.85" (47mm), making it the month with the third-highest rainfall. Meanwhile, the level of sunshine increases substantially, giving locals more time to enjoy the outdoors. Weather in May »

Weather in June

June in Westfield signifies the full swing of summer with prolonged daylight and increased heat. The conditions transformed drastically from May, with rainfall slightly increasing to 1.89" (48mm), the highest for the year. Residents experience elevated temperatures, abundant sunshine, and longer days, making this month an ideal season to dive into outdoor activities. Weather in June »

Weather in July

July takes the summer heat up a notch in Westfield, making it the warmest month of the year. A slight drop in rainfall to 1.38" (35mm) occurs, whilst the sun shines most brightly, further intensifying the summer heat. At the same time, wind speeds tumble down, making the weather feel even warmer than the thermostat reads. Weather in July »

Weather in August

With the arrival of August, Westfield's summer weather persists, albeit with a small drop in temperature from the peak of July. Despite the decline, the weather remains as warm, consistently sunny, and suitable for outdoor activities. Weather in August »

Weather in September

Ana usher in the fall season, September emerges with a noticeably cooler climate as compared to August in Westfield. The shift in seasons is evident, as rainfall continues to decline to 1.02" (26mm) and the warm summer temperatures cool off. Weather in September »

Weather in October

October in Westfield is characterised by its vibrant fall landscape with crisp, cool weather accompanying the changing foliage. There's a significant change from September, with temperatures falling even further, setting the stage for autumn's full bloom. Weather in October »

Weather in November

In Westfield, November acts as a transitionary period from fall to winter, often bringing chilly weather and shorter days. A drastic drop in temperature from October ushers in the early onset of winter. Rainfall recedes further to 0.83" (21mm), marking the month as the driest in the year. Weather in November »

Weather in December

December marks the culmination of the year with the arrival of winter in Westfield. The weather undergoes a significant transformation from November, with an increase in snowfall to 1.38" (35mm), the highest in the year. Throughout December, the cold intensifies, and the days continue to shorten, leading to longer, colder nights. Weather in December »
Updated: Jul 8, 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 Westfield's coldest month, registering average high temperatures of 32.2°F (0.1°C) and lows of 20.5°F (-6.4°C).

What are the most humid months?

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

How much does it rain?

Throughout the year, there are 128.2 rainfall days, and 14.61" (371mm) of precipitation is accumulated.

When does it snow?

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

How many days does it snow?

Throughout the year, there are 28.1 snowfall days, and 4.88" (124mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 3.9h of sunshine, January has the least sunshine of the year.

What is the driest month in Westfield?

February is the month with the least rainfall. Rain falls for 5.9 days and accumulates 0.79" (20mm) of precipitation.

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.

When it does not snow?

May through September are months without snowfall.

What is the wettest month?

The month with the most rainfall is June, when the rain falls for 13.8 days and typically aggregates up to 1.89" (48mm) of precipitation.

When are the longest days?

The month with the longest days is June, with an average of 15h and 0min of daylight.

What is the month with the most sunshine?

June and July, with an average of 10.1h of sunshine, are months with the most sunshine.

When is the highest UV index?

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

What month is the hottest?

Westfield reaches its average highest temperatures in July, measuring 81.5°F (27.5°C) at the peak and 65.5°F (18.6°C) at the lowest.

What is the least humid month?

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

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 5.9 days and accumulates 1.38" (35mm) of snow.

What is the month with the shortest days?

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

What is the month with the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.
Today
Tomorrow
Long-term
YearJFMAMJJASOND

Average temperature
Westfield, IN

Average temperature - Westfield, IN

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.2°F).

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure
Westfield, IN

Average pressure - Westfield, IN

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Westfield, IN

Average wind speed - Westfield, IN

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity
Westfield, IN

Average humidity - Westfield, IN

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

Average rainfall
Westfield, IN

Average rainfall - Westfield, IN

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

Average rainfall days
Westfield, IN

Average rainfall days - Westfield, IN

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.9 days).

Average snowfall
Westfield, IN

Average snowfall - Westfield, IN

The month with the highest snowfall is December (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Westfield, IN

Average snowfall days - Westfield, IN

The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Westfield, IN

Average daylight / Average sunshine - Westfield, IN

The month with the longest days is June (Average daylight: 15h and 0min).
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 and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days
Westfield, IN

Average sunshine days - Westfield, IN

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).

Average UV index
Westfield, IN

Average UV index - Westfield, IN

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover
Westfield, IN

Average cloud cover - Westfield, IN

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility
Westfield, IN

Average visibility - Westfield, 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).

Westfield, Indiana, USA

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