Climate and monthly weather forecastMercerville, OH
Climate and monthly weather forecast
Weather in January
January, like December, in Mercerville, Ohio, is an icy winter month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 37.9°F (3.3°C). January, with its average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 24.3°F (-4.3°C), holds the record as the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Mercerville, Ohio, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 27.9°F (-2.3°C). The start of February sees the average high-temperature at a still icy 42.4°F (5.8°C), showing little difference from January's 37.9°F (3.3°C). Weather in February »Weather in March
March, the first month of the spring in Mercerville, is a cool month, with an average temperature ranging between min 35.8°F (2.1°C) and max 52.5°F (11.4°C). March's arrival brings a temperature shift, moving from a cold 42.4°F (5.8°C) in February to a fresh 52.5°F (11.4°C). Weather in March »Weather in April
April is a refreshing spring month in Mercerville, Ohio, with an average temperature ranging between min 44.8°F (7.1°C) and max 64.9°F (18.3°C). April's arrival signals a temperature shift, moving from a cool 52.5°F (11.4°C) in March to a comfortable 64.9°F (18.3°C). Weather in April »Weather in May
May, the last month of the spring in Mercerville, is a moderately hot month, with an average temperature fluctuating between 54.5°F (12.5°C) and 75.4°F (24.1°C). May marks a rise in the average high-temperature, moving from April's comfortable 64.9°F (18.3°C) to a warm 75.4°F (24.1°C). Weather in May »Weather in June
June, the first month of the summer in Mercerville, is also a moderately hot month, with an average temperature varying between 82.9°F (28.3°C) and 60.6°F (15.9°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from a moderately hot 75.4°F (24.1°C) to a still warm 82.9°F (28.3°C). Weather in June »Weather in July
July in Mercerville, Ohio, is a hot summer month, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 86.5°F (30.3°C). July is the warmest month, exhibiting average temperatures of 86.5°F (30.3°C) at the peak and 64.4°F (18°C) at the base. The average heat index in July is calculated to be a fiery hot 98.6°F (37°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Mercerville, Ohio, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 62.6°F (17°C). August's arrival shows an average high-temperature of a warm 85.3°F (29.6°C), hardly different from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Mercerville, Ohio, with an average temperature ranging between max 79°F (26.1°C) and min 57.7°F (14.3°C). A mild shift in the average high-temperature occurs in September, reducing from a warm 85.3°F (29.6°C) in August to a still moderately hot 79°F (26.1°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Mercerville, Ohio, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.8°F (18.8°C). Mercerville's progression into October includes a drop in the average high-temperature, from a moderately hot 79°F (26.1°C) in September to a refreshing 65.8°F (18.8°C). Weather in October »Weather in November
November, the last month of the autumn in Mercerville, is another cool month, with temperature in the range of an average high of 52.5°F (11.4°C) and an average low of 36.7°F (2.6°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a fresh 52.5°F (11.4°C) from an enjoyable 65.8°F (18.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Mercerville, Ohio, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 31.3°F (-0.4°C). The transition into December involves a decrease in the average high-temperature, falling from a cool 52.5°F (11.4°C) in November to a chilly 43.2°F (6.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mercerville, OH
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Mercerville, OH
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Mercerville, OH
- Average wind speed in January:
6.9mph - Average wind speed in February:
7mph - Average wind speed in March:
6.7mph - Average wind speed in April:
6.8mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.4mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.6mph - Average wind speed in November:
6mph - Average wind speed in December:
6.5mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity
Mercerville, OH
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Mercerville, OH
- Average rainfall in January:
1.02" - Average rainfall in February:
1.46" - Average rainfall in March:
1.26" - Average rainfall in April:
1.65" - Average rainfall in May:
1.93" - Average rainfall in June:
1.65"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days
Mercerville, OH
- Average rainfall days in January:
10.2 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
13 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Mercerville, OH
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Mercerville, OH
- Average snowfall days in January:
10.8 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
0.8 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:
0.2 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mercerville, OH
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Mercerville, OH
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
12.2 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
19 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.3 days).
Average UV index
Mercerville, OH
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Mercerville, OH
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Mercerville, OH
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).





