Climate and monthly weather forecastMarion, OH
Climate and monthly weather forecast
The climate of Marion
Marion, Ohio, USA, operates under the Köppen climate classification of Dfa - a category that represents a humid continental climate with no dry season and a hot summer. The location provides a dynamic weather landscape as the year progresses, which is reflective of the different meteorological parameters of each month.Temperature maxima for Marion fly through an annual range, peaking at 80.1°F (26.7°C) in July and plunging to its low of 31.3°F (-0.4°C) in January. While highs in summer can impress, keep in mind that the temperature can fall to as low as 19.8°F (-6.8°C) in the winter months. Similarly, the frequency of days experiencing rainfall appears to be highest during the spring months, reaching up to 18.9 rainy days in May and diminishing to approximately half the amount, 8.8 days, in January.
Marion is not immune to the charm of winter as it sees an appreciable amount of snowfall with peaks in the snow-laden seasons of January and February, reporting 3.58" (91mm) and 3.98" (101mm) respectively. Patterns in wind speed are marginally less definitive, with wind gust speeds peaking at 15mph (24.1km/h) in December and January and at their slowest, 9.6mph (15.4km/h), in July and August.
The best time to visit Marion
Depending on one's affinity for particular weather conditions, the period between late spring and early fall can be considered the most favorable time to visit Marion. During this time, temperatures reach their annual highs with readings from 58.8°F (14.9°C) to 80.1°F (26.7°C). This period also boasts the highest levels of daylight, spanning from 13.3 hours in April to 15 hours in June, offering ample time to explore the local attractions.The worst time to visit Marion
While beauty often lies in the eyes of the beholder, statistically, the coldest months of January and February might be considered the least favorable to visit Marion. During these months, the temperatures can dip as low as 19.8°F (-6.8°C) and 22.6°F (-5.2°C) respectively, coupled with the highest snowfall throughout the year - potentially not welcoming weather conditions for many visitors.Spring weather in Marion
Spring in Marion, Ohio presents a gradual increase in temperature, climbing from March's high of 46.9°F (8.3°C) to May's 70.3°F (21.3°C). Rainfall also increases during the spring, with the number of rainy days peaking in May at 18.9 days. Daylight hours significantly grow throughout spring, starting from 12 hours in March to 14.5 hours in May, providing a pleasant setting for outdoor activities.Summer weather in Marion
During summer, Marion experiences its peak temperatures with July topping at a high of 80.1°F (26.7°C) and relatively high humidity levels around 81%. Despite this, Marion's summer is relatively wet with a low probability of extended dry spells. The months of June through August average rainfall amounts from 2.52" (64mm) to 3.39" (86mm).Autumn weather in Marion
Autumn in Marion welcomes a cooling period, with temperatures receding from the summer highs. September sets the tone with a temperature high of 73.4°F (23°C), falling to a milder 61.3°F (16.3°C) in October and finally, 47.8°F (8.8°C) in November. The duration of daylight gradually decreases albeit maintaining a respectable span of over 10 hours through to November.Winter weather in Marion
Winter in Marion transforms the landscape into a spectacle of snow and chill. Cold temperatures are prevalent with the lowest being 19.8°F (-6.8°C) in January. December and January also bring the highest incidences of snowfall, with 3.19" (81mm) and 3.58" (91mm) respectively, offering a wintry landscape for those who appreciate colder climates.Weather in January
Weather in Marion, Ohio begins the year with a wintry display, January emerges with cold and mostly cloudy conditions. A noticeable fact sets the tone: average snowfall stands at 3.58in, marking January as one of the peak snowfall months. Weather in January »Weather in February
As Marion moves into February, the weather endures its winter streak. It's slightly warmer than January but still considerably cold. February sees a slight increase in daylight hours, a harbinger of the approaching spring. Despite recording a diminished snowfall, with an average of 3.98in, this month remains a time for winter coats and snow boots. Weather in February »Weather in March
March brings relief to Marion with a substantial rise in temperatures, it signals the onset of spring. It's a shift from the frozen confines of the preceding months. The snowfall takes a backseat, reduced to an average of 2.01in, paving the way for clearer skies. Weather in March »Weather in April
April in Marion marks a distinctive switch towards spring, the weather during this month undergoes a significant transformation. Floras start to bloom, boosted by an increased average rainfall of 3.27in. The unpredictability of snowfall fades to almost non-existent levels. Weather in April »Weather in May
In May, Marion witnesses the full onset of spring and the approach of summer. This period is characterized by a marked rise in temperatures and daylight hours. The probability of rainfall also escalates, reaching an average of 3.62in, making it a relatively wet month. Weather in May »Weather in June
June brings the warmth of summer to Marion, creating more opportunities for outdoor activities. It's a contrast to May, with heightened temperatures and extended daylight hours. Balmy nights are another highlight of this month, making it an ideal time for evening walks or stargazing. Weather in June »Weather in July
July underscores the summer season in Marion, with hot temperatures and abundant sunshine. This month sees the mercury soar to an astounding average of 80.1°F (26.7°C), the highest for the year. The city also experiences long daylight hours, prompting a surge in outdoor recreational activities. Weather in July »Weather in August
August continues the summer galore in Marion, with high temperatures and prolonged sunshine hours. It's slightly less intense than July yet the weather remains distinctly summer-like. This month confirms its summery nature with low wind speeds, nurturing an atmosphere of calm and serenity. Weather in August »Weather in September
September in Marion denotes the transition from the heat of summer to the slightly cooler temperatures of autumn. A downward trend in temperatures signals the initial stage of this transformation. While summer showers become scarcer, with an average rainfall of 1.93in, one of the lowest in the year. Weather in September »Weather in October
October fully welcomes autumn in Marion, incorporating lower temperatures and a shift in landscape aesthetics. It's noticeably cooler compared to September, with temperatures dropping further. This month brings the falling leaves into focus, casting a different hue over the city. Weather in October »Weather in November
November nudges Marion closer to winter with a noticeable decrease in temperature from the preceding month. It's a period of shorter days and chilly nights. The trees stand bare, having shed their leaves in anticipation of the cold. Weather in November »Weather in December
December brings full winter to Marion, with cold temperatures and renewed chances of snowfall. The landscape turns into a winter wonderland, as the city receives an average snowfall of 3.19in. It's a stark variance from the mild weather witnessed in November. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Marion, OH
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Marion, OH
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"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:
30.04"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Marion, OH
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.5mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Marion, OH
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall
Marion, OH
- Average rainfall in January:
2.32" - Average rainfall in February:
2.09" - Average rainfall in March:
2.68" - Average rainfall in April:
3.27" - Average rainfall in May:
3.62" - Average rainfall in June:
3.39"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days
Marion, OH
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
17.7 days - Average rainfall days in May:
18.9 days - Average rainfall days in June:
17 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
14.6 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
12 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.8 days).
Average snowfall
Marion, OH
- Average snowfall in January:
3.58" - Average snowfall in February:
3.98" - Average snowfall in March:
2.01" - Average snowfall in April:
0.71" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Marion, OH
- Average snowfall days in January:
14.8 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.1 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:
0.6 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
10.6 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Marion, OH
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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 18min).
- Average sunshine in January:
3h and 18min - Average sunshine in February:
4h and 12min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 0min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 12min - Average sunshine in December:
3h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days
Marion, OH
- Average sunshine days in January:
10.1 days - Average sunshine days in February:
9.2 days - Average sunshine days in March:
11.4 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
9.6 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
13.6 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
15.2 days - Average sunshine days in December:
12.1 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (9.2 days).
Average UV index
Marion, OH
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
Marion, OH
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Marion, OH
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).








