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Contents
- The climate of Portage
- The best time to visit Portage
- The worst time to visit Portage
- Spring weather in Portage
- Summer weather in Portage
- Autumn weather in Portage
- Winter weather in Portage
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Portage
Portage, the city located in Indiana, USA, falls within the Dfa or Humid continental zone of the Köppen climate classification. This classification implies a pattern of no dry season, and a hot summer, which can be seen in its climatic data. Observing the climate around the year, a distinct fluctuation in temperature from a low of 19.8°F (-6.8°C) in January to a high of 79.2°F (26.2°C) in July becomes evident. Similarly, the relative humidity follows a pattern with lowest values of 73% in October climbing as high as around 83% in February.
The city’s climate is characterized by high precipitation levels, with rainfall peaking at around 3.19" (81mm) in June and dropping to about 1.18" (30mm) in February. The number of rainfall days on average also reaches a maximum in June with 16.8 days, while December records the lowest with 9.6 days. The occurrence of snowfall is limited mainly to the winter months from December to April with a maximum snowfall of about 3.27" (83mm) in January.
There is a notable fluctuation in daylight hours from a low of approximately 9.6 hours in January to a peak of nearly 15.1 hours in June. A clear shift in the average sunshine hours during the year is also evident, starting from a minimum of about 3.5 hours in January and escalating to roughly 10.2 hours in June. The annual pattern observed in sunshine days is slightly divergent with November recording the maximum number of sunshine days at 15.7, December displaying the minimum at 13.2.
The city’s climate is characterized by high precipitation levels, with rainfall peaking at around 3.19" (81mm) in June and dropping to about 1.18" (30mm) in February. The number of rainfall days on average also reaches a maximum in June with 16.8 days, while December records the lowest with 9.6 days. The occurrence of snowfall is limited mainly to the winter months from December to April with a maximum snowfall of about 3.27" (83mm) in January.
There is a notable fluctuation in daylight hours from a low of approximately 9.6 hours in January to a peak of nearly 15.1 hours in June. A clear shift in the average sunshine hours during the year is also evident, starting from a minimum of about 3.5 hours in January and escalating to roughly 10.2 hours in June. The annual pattern observed in sunshine days is slightly divergent with November recording the maximum number of sunshine days at 15.7, December displaying the minimum at 13.2.
The best time to visit Portage
To make the most of your visit to Portage, you should consider the city's weather patterns throughout the year. The months between May and September arguably offer the best time to visit Portage. During this period, temperature averages range from a comfortable 54.7°F (12.6°C) to 79.2°F (26.2°C) and rainfall is fairly spread out across these months, with June experiencing the highest at 3.19" (81mm) across 16.8 days on average. The extended daylight hours, which reach a maximum in June with 15.1 hours, accompanied by substantial sunshine hours, peaking at 10.2 hours in June, enhance the overall visitor experience during these months.
The worst time to visit Portage
On the contrary, the least favorable time for visiting Portage tends to be between December and February. During this period, the temperature hits a low from 19.8°F (-6.8°C) to 33.3°F (0.7°C), and the city experiences snowfall up to 3.27" (83mm) in January across 13.5 days. The short daylight hours, reaching a minimum in December with about 9.2 hours, and meager sunshine hours, dropping to 3.9 hours in December, prove a hurdle for various outdoor activities.
Spring weather in Portage
Springtime in Portage unfolds from March to May, when the city witnesses a swift upsurge in temperature from 44.2°F (6.8°C) to 66°F (18.9°C). Similarly, the frequency of rainfall also increases significantly from 1.38" (35mm) across 12.3 days in March to nearly 2.99" (76mm) over 16.8 days in May. Nevertheless, the increase in daylight and sunshine hours from approximately 12 and 6 hours in March to about 14.5 and 8.7 hours in May, respectively, offers promising circumstances for a plethora of outdoor activities.
Summer weather in Portage
Summertime in Portage spans the months from June to August. During this period, the city enjoys warm temperatures oscillating from 75.2°F (24°C) to 79.2°F (26.2°C), and the rainfall remains relatively constant, slightly decreasing from 3.19" (81mm) in June to around 2.64" (67mm) across 16.8 to 16.2 days. The extended daylight hours, hitting a high of 15.1 hours, coupled with average sunshine hours of around 10, make summer an attractive time for various outdoor pursuits.
Autumn weather in Portage
In autumn—from September to November—the temperature in Portage undergoes a steady decrease from 73°F (22.8°C) to 46.8°F (8.2°C). Comparatively, rainfall levels drop from 2.4" (61mm) spread across 15.8 days in September to about 1.3" (33mm) over 10.7 days in November. Yet, the decrease in daylight and sunshine hours from nearly 14.5 and 8.7 hours in September to about 9.9 and 5 hours in November, respectively, indicates the onset of winter.
Winter weather in Portage
Winter in Portage—encompassing the months from December to February—brings with it typically cold temperatures, dipping from 36.1°F (2.3°C) in December to 19.8°F (-6.8°C) in January. Furthermore, a notable increase in average snowfall from 0.91" (23mm) to 3.27" (83mm) across 4.2 to 13.5 days is observed. The decrease in daylight and sunshine hours to a low of 9.2 and 3.5 hours, respectively, in January, characterizes the gloomy, cold weather during these months.
Weather in January
January weather in Portage, Indiana presents the coldest conditions of the year, with the mercury often plunging to 19.8°F (-6.8°C) at night. The chilly start to the year also carries the highest humidity and significant cloud cover, resulting in fewer hours of daylight and sunshine. Weather in January »
Weather in February
By February, it is evident that the grasp of winter is beginning to loosen in Portage. Despite the increase in temperature, the city still experiences colder periods, and snowfall still prevails, albeit reduced from the previous month down to 2.56" (65mm). Weather in February »
Weather in March
As March comes along, signs of spring are evident in Portage with temperatures beginning to rise drastically. While the snowfall continues to decrease, rain begins to dot the monthly forecast introducing an element of wetness to the weather. Weather in March »
Weather in April
April in Portage, Indiana brings the true onset of spring, following suit with significant increases in temperature from preceding months. The transition from winter to spring sees a key shift from snowfall to rainfall, accentuating the smell of bloom in the air. Weather in April »
Weather in May
The arrival of May is marked by a noticeable leap in temperatures as the residents start gearing up for summer. The month is characterized by ample sunshine and UV exposure, nurturing thriving greenery across the city. Portage experiences substantial rainfall during this month, providing much needed hydration for local ecosystems. Weather in May »
Weather in June
June introduces the peak of summer, offering warmth and long sunny days to enjoy outdoor activities. As the average temperatures rise, the humidity follows suit, creating a typical midwestern summer. Despite being one of the rainiest months, the frequency of sunny days is highest compared to other summer months. Weather in June »
Weather in July
July arrives in Portage, Indiana with the highest temperatures throughout the year. With the welcome of full-blown summer, the season is celebrated with open blue skies, extended hours of sunlight and high UV indices. The typically high humidity helps to intensify the heat, making it necessary to stay well hydrated. Weather in July »
Weather in August
August continues the warmth of summer in Portage, with temperatures barely dropping from July's peak. While not as hot as July, the moderate heat allows for the pursuit of outdoor activities such as picnics and fishing trips. Despite being a relatively dry month, occasional rain showers can be expected. Weather in August »
Weather in September
September brings the transition from summer to fall, with temperatures beginning to drop considerably across Portage. The month offers a splash of color as the leaves change, making it a picturesque period to visit local parks. Weather in September »
Weather in October
October comes with an even more noticeable dip in Portage, Indiana's temperatures, signaling the onset of fall. With less sunshine compared to the summer months, the air carries a refreshing chill. Rainfall is moderate during the month, fostering fungi and fall blooms throughout the city. Weather in October »
Weather in November
November brings a crisp chill to the air in Portage, as the autumn leaves continue their vibrant display. As the daylight hours decrease, the chill of winter starts to make a slight appearance. The area experiences storms, which often bring rain, but the first traces of snow are not far behind. Weather in November »
Weather in December
December welcomes winter back to Portage, Indiana, as temperatures drop distinctly below those of the previous month. The winter chill is accompanied by increased cloud cover and shortened sunlight hours, establishing a winter weather pattern. Weather in December »
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
Portage reaches its average lowest temperatures in January, measuring 30.2°F (-1°C) at the peak and 19.8°F (-6.8°C) at the lowest.
How many days does it rain in Portage?
Throughout the year, there are 157.4 rainfall days, and 23.9" (607mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
What is the snowiest month?
January is the month with the most snowfall in Portage. Snow falls for 13.5 days and accumulates 3.27" (83mm) of snow.
How many days does it snow?
In Portage, during the entire year, snow falls for 47 days and aggregates up to 10.75" (273mm) of snow.
What is the month with the least sunshine in Portage?
January has the least sunshine of the year, with an average of 3.5h of sunshine.
What is the month with the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the most humid month?
February is the most humid month, with an average relative humidity of 83%.
What is the driest month?
The month with the least rainfall is February, when the rain falls for 7.8 days and typically collects 1.18" (30mm) 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 CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
When it does not snow?
In Portage, snow does not fall in May through October.
What is the rainiest month?
The month with the most rainfall in Portage, Indiana, is June, when the rain falls for 16.8 days and typically aggregates up to 3.19" (81mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
When is the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What are the warmest months?
The month of July sees the average highest temperatures, reaching 79.2°F (26.2°C) at the peak and 65.3°F (18.5°C) at the low.
What month has the most sunshine?
With an average of 10.3h of sunshine, August has the most sunshine of the year.
What is the least humid month?
The least humid month is October, with an average relative humidity of 73%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Portage, IN
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.2°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 (19.8°F).
Average pressure
Portage, IN
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Portage, IN
- Average wind speed in January:
11.4mph - Average wind speed in February:
10.9mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.9mph - Average wind speed in September:
8.1mph - Average wind speed in October:
10.1mph - Average wind speed in November:
10.9mph - Average wind speed in December:
10.7mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity
Portage, IN
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Portage, IN
- Average rainfall in January:
1.22" - Average rainfall in February:
1.18" - Average rainfall in March:
1.38" - Average rainfall in April:
2.4" - Average rainfall in May:
2.99" - Average rainfall in June:
3.19"
- Average rainfall in July:
2.91" - Average rainfall in August:
2.64" - Average rainfall in September:
1.65" - Average rainfall in October:
1.81" - Average rainfall in November:
1.3" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days
Portage, IN
- Average rainfall days in January:
7.2 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall
Portage, IN
The month with the highest snowfall is January (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Portage, IN
- Average snowfall days in January:
13.5 days - Average snowfall days in February:
10.4 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
2.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
10.4 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Portage, IN
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 12min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Portage, IN
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
10.8 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
10.4 days - Average sunshine days in September:
12.9 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
15.7 days - Average sunshine days in December:
13.2 days
The month with the most sunshine days is November (15.7 days).
The months with the least sunshine days are June and August (10.4 days).
Average UV index
Portage, IN
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Portage, IN
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Portage, IN
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).
Portage, Indiana, USA
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