Climate and monthly weather forecastPort Huron, MI
Climate and monthly weather forecast
The climate of Port Huron
Situated in close proximity to immense bodies of water, the climate of Port Huron in eastern Michigan, USA is classified within the Humid Continental category, according to the Köppen climate system. This specific climate type, coded as Dfb, is characterized by no dry season and a generally warm summer.Throughout the year, Port Huron experiences a fair amount of variation in weather conditions. Temperatures can spike up to 78.4°F (25.8°C) in the balmy month of July and then plunge to lows of 18.5°F (-7.5°C) in frigid January. The maximum and minimum average sea temperatures follow a parallel trajectory, brushing 73.7°F (23.2°C) in late summer, dropping to 32.4°F (0.2°C) in February.
Across all twelve months, the city is blessed with a healthy level of humidity, with the average relative humidity fluctuating between 76% in April and 86% in February. From a perspective of precipitation, Port Huron witnesses widely scattered showery months, with April and May receiving the maximum average rainfall, both months garnering over 2" (51mm). The average number of rainfall days spread throughout the year, ranging from 5.7 days in February to 15.7 days in May.
The city's position on the Great Lakes' shore also influences its snowfall patterns, with January and December experiencing the most, surpassing 1.5" (38mm). This is seen in tandem with the measurable snowfall days that reach their peak in these same winter months.
The best time to visit Port Huron
Considering the city's varied climate, pivotal factors such as comfortable temperatures, reasonable amounts of rainfall, and ample daylight hours, the period from June to September emerges as the ideal time to visit Port Huron. During this period, the maximum average temperature hovers around a sunny 71.2°F (21.8°C) to 78.4°F (25.8°C), making it pleasant for outdoor activities. Simultaneously, the sea temperature ascends, peaking at 73.7°F (23.2°C) to provide enjoyable beach outings.The worst time to visit Port Huron
On the contrary, January stands out to be the most challenging month for a visit to Port Huron. The month hosts the coldest average low temperature of 18.5°F (-7.5°C) and 2.8" (71mm) of snowfall, making it harsh for outdoor activities. The seemingly endless days with a snowfall average of 14.4 days and the shortest daylight duration of 9.4 hours are not conducive to tourism either.Spring weather in Port Huron
Spring takes a gradual stride in Port Huron as temperatures slowly ascend between March and May, starting from 39.6°F (4.2°C) and reaching up to the comfortable margin of 64.4°F (18°C) in May. Amid these months, days become longer with rising daylight hours from 12 hours in March to 14.7 hours in May. Simultaneously, rainfall increases, peaking at 2.13" (54mm) in May, although the number of rainy days relatively oscillates around the monthly average of 13 to 15 days.Summer weather in Port Huron
Summers in Port Huron span from June to August and are characterized by warm, sunny days. Temperatures remain stable between 71.2°F (21.8°C) to 78.4°F (25.8°C) with sea temperatures escalating to a warm 73.7°F (23.2°C) in August. Coupled with long hours of daylight hovering between 13.9-15.3 hours and sunshine duration expanding as much as 10 hours, summers in the city are noticeably spirited.Autumn weather in Port Huron
Autumn months from September to November witness a remarkable temperature drop from 71.2°F (21.8°C) to 45.3°F (7.4°C). Rainfall slightly decreases to an average of 1.26" (32mm) in November and the average number of rainfall days remains stable around 12 to 14 days. Declining daylight and sunshine hours mark the autumn season, with days shortening to 9.7 hours by November.Winter weather in Port Huron
The winter season in Port Huron, from December through February, is markedly cold with temperatures plunging to an average low of 18.5°F (-7.5°C) in January. The snowfall reaches its peak in January, averaging 2.8" (71mm), which coincides with 14.4 snowfall days. With daylight hours limited to between 9.1 to 10.6 hours and sunshine duration reducing to a low of 3.2 hours in December, winter months are generally subdued and chilly.Weather in January
January in Port Huron, Michigan, sees the onset of winter with the year's lowest temperatures, with an average low of 18.5°F (-7.5°C) and high of 27.9°F (-2.3°C). The month also starts off with several snowfall days, resorting in a snowfall of 2.8" (71mm). Weather in January »Weather in February
Although February experiences a slight rise in temperatures compared to January, the winter chill prevails in Port Huron. February sees an increase in snowfall, accumulating up to 3.9" (99mm), making it ideal for winter sports enthusiasts. Weather in February »Weather in March
March ushers in a transient phase in Port Huron's weather calendar, marking the transition from winter to spring. With the highest temperature reaching up to 39.6°F (4.2°C), there is a noticeable decline in snowfall, standing at 1.38" (35mm). Weather in March »Weather in April
April brings a distinctive shift in Port Huron's weather as the grips of winter fully recede. The city welcomes spring with a substantial increase in temperatures, with a high of 51.3°F (10.7°C). The landscape transforms, trading the white blanket of snow for a colorful canvas of blossoming flowers. Weather in April »Weather in May
May marks the advent of early summer in Port Huron, graced with a significant increase in temperatures and rainfall. Average high temperatures ramp up to a balmy 64.4°F (18°C), indicating the departure of spring. Showers become frequent, with rainfall reaching 2.13" (54mm), rendering the city a lush green. Weather in May »Weather in June
June in Port Huron welcomes the full swing of summer. With the mercury shooting up to 72.1°F (22.3°C), the heat is palpable. The increased daylight hours allow locals and tourists alike to bask in the sunny outdoors. Despite the rise in temperatures, the humidity remains relatively constant giving a stable feel. Weather in June »Weather in July
July sees Port Huron at the pinnacle of summer, with temperatures spiking to a sweltering 78.4°F (25.8°C). It is the hottest period of the year, characterized by long, sunny days. Even though the heat is intense, the city's proximity to Lake Huron mitigates the harshness of summer, offering respite with cooling lake breezes. Weather in July »Weather in August
August signals the culmination of summer in Port Huron, with a relatively high temperature of 77.5°F (25.3°C). The warm weather persists, yet there is a subtle hint of the forthcoming fall season. Despite the warm days, evenings start to cool off, giving early signs of the change in seasons. Weather in August »Weather in September
September in Port Huron marks the beginning of autumn. There's a significant drop in temperature, descending to a high of 71.2°F (21.8°C). This period is characterized by a balance between the fading summer warmth and the steadily creeping in autumn chills. Weather in September »Weather in October
October brings true fall weather to Port Huron. The temperatures drop further, and rainfall amounts to 1.93" (49mm). The city is adorned in vibrant fall foliage, providing a scenic backdrop to the crisp, cool days. Despite the receding temperatures, the weather remains pleasant for outdoor activities. Weather in October »Weather in November
November, the last month of the autumn in Port Huron, is chilly month, with an average temperature fluctuating between 45.3°F (7.4°C) and 34.7°F (1.5°C). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from a moderate 58.3°F (14.6°C) to a chilly 45.3°F (7.4°C). Weather in November »Weather in December
December ushers in the winter season in Port Huron, with temperatures once again dipping to an average high of 34.7°F (1.5°C). The month sees the return of snowfall, marking it at 1.93" (49mm), setting the stage for a white Christmas. Weather in December »Updated: Jul 4, 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
Port Huron's coldest month, January, registers temperatures that range from a high of 27.9°F (-2.3°C) to a low of 18.5°F (-7.5°C).
In Port Huron, during the entire year, the rain falls for 140.4 days and collects up to 19.41" (493mm) of precipitation.
Months with snowfall are January through May, October through December.
In Port Huron, during the entire year, snow falls for 55.2 days and aggregates up to 12.28" (312mm) of snow.
January has the least sunshine of the year, with an average of 2.9h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
February is the most humid month, with an average relative humidity of 86%.
February is the month with the least rainfall. Rain falls for 5.7 days and accumulates 1.1" (28mm) of precipitation.
February is the month with the most snowfall. Snow falls for 12.8 days and accumulates 3.9" (99mm) of snow.
The months with the coldest seawater are February and March, with an average ocean temperature of 32.5°F (0.3°C).
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.
The months with the lowest humidity are April and May, with an average relative humidity of 76%.
The month with the most rainfall is May, when the rain falls for 15.7 days and typically aggregates up to 2.13" (54mm) of precipitation.
June through September are months without snowfall.
With an average of 15h and 18min of daylight, June has the longest days of the year.
In Port Huron, July records the average highest temperatures, peaking at 78.4°F (25.8°C) and reaching a low of 61.3°F (16.3°C).
The month with the most sunshine is July, with an average of 10.3h of sunshine.
The months with the highest UV index are July and August, with an average maximum UV index of 6.
With an average ocean temperature of 73.8°F (23.2°C), August is the month with the warmest seawater.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Port Huron, MI
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Port Huron, MI
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Port Huron, MI
- Average wind speed in January:
11.3mph - Average wind speed in February:
11mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
7.1mph - Average wind speed in September:
7.9mph - Average wind speed in October:
10mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.9mph
The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity
Port Huron, MI
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall
Port Huron, MI
- Average rainfall in January:
1.22" - Average rainfall in February:
1.1" - Average rainfall in March:
1.3" - Average rainfall in April:
2.09" - Average rainfall in May:
2.13" - Average rainfall in June:
1.89"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.89" - Average rainfall in September:
1.38" - Average rainfall in October:
1.93" - Average rainfall in November:
1.26" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days
Port Huron, MI
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
10 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
14.3 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Port Huron, MI
The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Port Huron, MI
- Average snowfall days in January:
14.4 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
8.2 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.3 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:
0.3 days - Average snowfall days in November:
4.8 days - Average snowfall days in December:
12.1 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature
Port Huron, MI
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (32.4°F).
Average daylight / Average sunshine
Port Huron, MI
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
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).
- Average sunshine in January:
2h and 54min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 12min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 24min - Average sunshine in December:
3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days
Port Huron, MI
- Average sunshine days in January:
12.1 days - Average sunshine days in February:
11.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15 days - Average sunshine days in October:
13.9 days - Average sunshine days in November:
15.2 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (11.3 days).
Average UV index
Port Huron, MI
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Port Huron, MI
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Port Huron, MI
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).
