Climate and monthly weather forecast
Troy, MI


The climate of Troy

Situated in Michigan, USA, Troy experiences a Dfb or Humid Continental climate, according to the Köppen Climate Classification. This signifies a lack of dry season, with warm summers and often cold winters. Shifts in weather conditions throughout the year are fairly predictable, with marked seasonal changes.

Throughout the year, temperature swings from lows of 18°F (-7.8°C) in January and February to highs nearing 80.6°F (27°C) in July. This indicates a typical pattern of cold winters and warm summers. Rainfall measures slightly vary, ranging from just 0.87" (22mm) in December to 2.17" (55mm) in May. Months with the highest relative humidity are January and February with 85%, while the least humid months being the majority of the spring and summer months, at 74%.

It is worthwhile to note that snowfall occurs chiefly between December and February, with 13.7 snowfall days in January, while in July and August events are virtually non-existent.

The Best Time to Visit Troy

When considering factors such as mild temperatures, low rain, and long sunny days, June through August make the most favourable time to visit Troy. During these months, temperatures remain consistent, with highs between 66.9°F (19.4°C) to 80.6°F (27°C) and lows between 57.7°F (14.3°C) to 63.5°F (17.5°C). Rainfall measurements show this period to be not particularly dry, varying from 1.69" (43mm) to 1.73" (44mm). However, these months offer the most sunshine, averaging from 10.1 hours to 10.5 hours per day.

The Worst Time to Visit Troy

For visitors who prefer avoiding particularly cold conditions, January and February should be bypassed. During these months, temperatures dip to 18°F (-7.8°C), even though the highest temperatures oscillate around 28°F (-2.2°C) to 31.1°F (-0.5°C). Additionally, it is the period with the most days of snowfall, over 12 days per month on average.

Spring Weather in Troy

Spring ushers in warmer weather to Troy after a chilly winter, with temperatures escalating from a low of 28°F (-2.2°C) in March to a high reaching 66.9°F (19.4°C) in May. This transition to warmer months faces a surge in rainfall peaking at 2.17" (55mm) in May. Sunshine hours also increase, reaching 8.7 hours per day in May.

Summer Weather in Troy

Between June and August, Troy experiences its highest temperatures. Maximum temperatures achieve 80.6°F (27°C) in July, while minimum nighttime temperatures stay between 57.7°F (14.3°C) to 63.5°F (17.5°C). Despite this, the summer months witness comparatively less rainfall, ranging from 1.69" (43mm) to 1.73" (44mm). Sunlight is abundant, with daylight ranging from 14.9 hours to 15.3 hours, and sunshine hours hovering around 10 per day.

Autumn Weather in Troy

Autumn brings on more temperate weather from September to November. Temperatures start to fall from a maximum of 72.1°F (22.3°C) in September to a low of 34.2°F (1.2°C) come November. While rainfall decreases to 1.1" (28mm) by November, a gradual increase in cloud cover and lower sunshine hours, down to 4.7 in November, herald the arrival of cooler times.

Winter Weather in Troy

Troy’s winter months, December through February, demonstrate a cold climate. January and February present the coldest averages, with temperatures remaining between 18°F (-7.8°C) up to 31.1°F (-0.5°C) as the highest. Snow is a common feature with the snowfall peak of 3.19" (81mm) in February, making these months not ideal for visitors desiring mild weather.

Weather in January

Troy, Michigan weather in January presents one of the coldest periods of the year. Snowfall is the norm with an average of 2.68" (68mm) - January possessing one of the highest rates of snowy days. The high relative humidity of 85% results in a distinctive wind chill, causing temperatures to feel cooler than they actually are. Weather in January »

Weather in February

February follows January's trend, with a slight increase in temperature yet retaining the cold ambiance of winter. The monthly snowfall slightly rises to 3.19" (81mm), alongside slightly longer daylight hours. Despite the cold, the number of snowy days decreases compared to January, hinting at the approaching spring. Weather in February »

Weather in March

In March, a hint of spring breathes mild air into Troy's weather. A notable rise in temperature is apparent, with less snowfall at 0.91" (23mm) and an increase in rainfall. Signs of thawing become clearer as the snowfall rate drops dramatically. Weather in March »

Weather in April

April in Troy, Michigan, unveils a substantial change in weather conditions. The temperature continues to escalate while snowfall dwindles further to a mere 0.67" (17mm). The city's green landscape starts to thrive, aided by increased rainfall. Weather in April »

Weather in May

May in Troy manifests a complete transformation from its winter demeanor, unveiling Michigan's pleasant spring. With warmer temperatures, the snowfall drops to a neglected 0.39" (10mm). This month radiates sunshine with more hours of higher UV index ratings. Weather in May »

Weather in June

June ushers in the beginning of summer in Troy. A significant change is a complete lack of snowfall. With the highest UV index for the year coupled with temperature highs, longer daylight hours and increased sunshine spell out perfect conditions for outdoor activities. Weather in June »

Weather in July

July is the peak of summer in Troy with its highest temperature - a high of 80.6°F (27°C) and low of 63.5°F (17.5°C). It’s the hottest month of the year with longer daylight hours and sustained sunshine. The city pulsates with life as July heat encourages outdoor activities, picnics, and barbecues. Weather in July »

Weather in August

August carries forward the hot summer weather from July in Troy. The temperature remains quite similar and constant to the previous month. Yet, the minor decrease in temperature accompanied by fewer daylight hours hints at the approaching fall. Weather in August »

Weather in September

September in Troy signifies the transition from hot summer days to cooler autumn nights. With no snowfall, the focus is on the changing colors of the city's foliage. The decrease in daylight hours and cooling temperatures suggests the end of summer, making way for fall. Weather in September »

Weather in October

October brings noticeable changes to Troy's weather. The drop in temperatures signifies the city's full transition into the fall season. Leaf-peeping becomes a popular activity as the city gets covered by a colorful quilt of autumn leaves. Weather in October »

Weather in November

November in Troy is markedly cooler, hinting at the incoming winter. The first snowflakes of the season may be observed with a snowfall rise to 1.3" (33mm). This month experiences the least hours of daylight, causing temperatures to drop consistently. Weather in November »

Weather in December

December confirms the onset of winter in Troy, Michigan. Average minimum temperatures drop to 26.2°F (-3.2°C), and snowfall increases to 1.38" (35mm). The shortened daylight hours and the increased cloud cover contribute to December's chill. Weather in December »
Updated: Feb 12, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the coldest month in Troy?

Troy's January weather, marked by an average high temperature of 28°F (-2.2°C) and an average low temperature of 18°F (-7.8°C), is the coldest in the year.

What are the most humid months in Troy?

The months with the highest humidity are January and February, with an average relative humidity of 85%.

How many days does it rain in Troy?

In Troy, during the entire year, the rain falls for 136 days and collects up to 16.57" (421mm) of precipitation.

When does it snow in Troy?

January through May, October through December are months with snowfall in Troy, Michigan.

How much does it snow in Troy?

Throughout the year, there are 52.3 snowfall days, and 10.59" (269mm) of snow is accumulated.

What is the month with the least sunshine in Troy?

January has the least sunshine of the year, with an average of 3.1h of sunshine.

What is the driest month in Troy?

February is the month with the least rainfall. Rain falls for 5.4 days and accumulates 0.83" (21mm) of precipitation.

What is the snowiest month in Troy?

The month with the most snowfall is February, when snow falls for 12.3 days and typically aggregates up to 3.19" (81mm) of snow.

When is Daylight Saving Time (DST) in Troy?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Troy, 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 least humid month in Troy?

April, July and August, with an average relative humidity of 74%, are the least humid months in Troy, Michigan.

What is the wettest month in Troy?

May is the month with the most rainfall in Troy. Rain falls for 16.3 days and accumulates 2.17" (55mm) of precipitation.

When it does not snow in Troy?

In Troy, Michigan, snow does not fall in June through September.

When are the longest days in Troy?

The month with the longest days in Troy is June, with an average of 15h and 18min of daylight.

What are the warmest months in Troy?

With an average high-temperature of 80.6°F (27°C) and an average low-temperature of 63.5°F (17.5°C), July is the warmest month.

What month has the most sunshine in Troy?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

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

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

What is the month with the shortest days in Troy?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Troy, Michigan.

When is the lowest UV index in Troy?

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

Average pressure
Troy, MI

Average pressure - Troy, MI

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Troy, MI

Average wind speed - Troy, MI

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity
Troy, MI

Average humidity - Troy, MI

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (74%).

Average rainfall
Troy, MI

Average rainfall - Troy, MI

The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is February (0.83").

Average rainfall days
Troy, MI

Average rainfall days - Troy, MI

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall
Troy, MI

Average snowfall - Troy, MI

The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Troy, MI

Average snowfall days - Troy, MI

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Troy, MI

Average daylight / Average sunshine - Troy, MI

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days
Troy, MI

Average sunshine days - Troy, MI

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (12.3 days).

Average visibility
Troy, MI

Average visibility - Troy, MI

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

Troy, Michigan, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location