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Contents
- 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
Weather in January
January, like December, is a freezing cold winter month in Williamstown, Ohio, with an average temperature fluctuating between 31.1°F (-0.5°C) and 19.8°F (-6.8°C). January, known for its average high temperature of 31.1°F (-0.5°C) and an average low temperature of 19.8°F (-6.8°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Williamstown, is a cold month, with an average temperature fluctuating between 23°F (-5°C) and 35.2°F (1.8°C). Williamstown experiences a subtle adjustment in high-temperatures to a wintry 35.2°F (1.8°C) with the onset of February, maintaining near parity with January's 31.1°F (-0.5°C). Weather in February »
Weather in March
March, the first month of the spring in Williamstown, is a frosty month, with an average temperature fluctuating between 46.6°F (8.1°C) and 31.8°F (-0.1°C). The start of March signals an increase in the average high-temperature, moving from an icy 35.2°F (1.8°C) in February to a frosty 46.6°F (8.1°C). Weather in March »
Weather in April
April is a refreshing spring month in Williamstown, Ohio, with an average temperature fluctuating between 58.6°F (14.8°C) and 41.7°F (5.4°C). The rise of average high-temperatures is seen in April, with an increase from a frosty 46.6°F (8.1°C) in March to a mild 58.6°F (14.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Williamstown, Ohio, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 70.3°F (21.3°C). With the onset of May, the average high-temperature slightly shifts from April's refreshing 58.6°F (14.8°C) to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
June, the first month of the summer in Williamstown, is a moderately hot month, with an average temperature fluctuating between 60.4°F (15.8°C) and 77.5°F (25.3°C). June witnesses a minor rise in the average high-temperature, transitioning from a pleasant 70.3°F (21.3°C) in May to a moderately hot 77.5°F (25.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Williamstown, Ohio, with an average temperature varying between 63.7°F (17.6°C) and 80.2°F (26.8°C). The month of July, characterized by an average high of 80.2°F (26.8°C) and a low of 63.7°F (17.6°C), is recognized as the warmest. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Williamstown, Ohio, with an average temperature fluctuating between 78.6°F (25.9°C) and 60.8°F (16°C). August welcomes an average high-temperature of a still warm 78.6°F (25.9°C), not much different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Williamstown, is also a moderately hot month, with an average temperature varying between 73.4°F (23°C) and 55.4°F (13°C). During September, Williamstown records an average high-temperature of a still moderately hot 73.4°F (23°C), marking a slight divergence from August's 78.6°F (25.9°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Williamstown, Ohio, with an average temperature varying between 61.5°F (16.4°C) and 46°F (7.8°C). The arrival of October corresponds with a shift in temperature, down from a moderately hot 73.4°F (23°C) in September to a refreshing 61.5°F (16.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Williamstown, is also a frosty month, with an average temperature varying between 35.1°F (1.7°C) and 48°F (8.9°C). With November's arrival, Williamstown's weather changes as the average high-temperature falls from a refreshing 61.5°F (16.4°C) in October to a chilly 48°F (8.9°C). Weather in November »
Weather in December
December, the first month of the winter in Williamstown, is also an icy month, with an average temperature fluctuating between 27.5°F (-2.5°C) and 37°F (2.8°C). In Williamstown, the average high-temperature in December decreases from a chilly 48°F (8.9°C) in November to an icy 37°F (2.8°C). Weather in December »
Updated: Jul 2, 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 is the coldest time of year?
During the coldest month in Williamstown, January, temperatures average a high of 31.1°F (-0.5°C) and a low of 19.8°F (-6.8°C).
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 84%.
How much does it rain?
In Williamstown, during the entire year, the rain falls for 168.7 days and collects up to 29.72" (755mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow?
In Williamstown, during the entire year, snow falls for 48.9 days and aggregates up to 13.23" (336mm) of snow.
What is the month with the least sunshine?
With an average of 3.4h of sunshine, January has the least sunshine of the year.
What is the snowiest month?
The month with the most snowfall in Williamstown is February, when snow falls for 11.4 days and typically aggregates up to 3.74" (95mm) of snow.
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 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 wettest month?
The month with the most rainfall is June, when the rain falls for 18.8 days and typically aggregates up to 3.54" (90mm) of precipitation.
When it does not snow?
In Williamstown, snow does not fall in June through September.
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 and July, with an average maximum UV index of 6.
What time of the year is the hottest?
Williamstown's July weather, marked by an average high temperature of 80.2°F (26.8°C) and an average low temperature of 63.7°F (17.6°C), is the warmest in the year.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.1h of sunshine.
What are the least humid months?
The months with the lowest humidity are October and November, with an average relative humidity of 75%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 10.5 days and accumulates 1.81" (46mm) of precipitation.
What is the month with the shortest days in Williamstown?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
When is the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Williamstown, OH
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (31.1°F).
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Williamstown, OH
- 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:
29.96"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:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Williamstown, OH
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.4mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.6mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Williamstown, OH
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Williamstown, OH
- Average rainfall in January:
2.01" - Average rainfall in February:
1.85" - Average rainfall in March:
2.44" - Average rainfall in April:
2.99" - Average rainfall in May:
3.43" - Average rainfall in June:
3.54"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.56" - Average rainfall in September:
1.97" - Average rainfall in October:
2.32" - Average rainfall in November:
1.97" - Average rainfall in December:
1.81"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.81").
Average rainfall days
Williamstown, OH
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
19.3 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Williamstown, OH
- Average snowfall in January:
2.87" - Average snowfall in February:
3.74" - Average snowfall in March:
1.85" - Average snowfall in April:
0.51" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Williamstown, OH
- Average snowfall days in January:
13.4 days - Average snowfall days in February:
11.4 days - Average snowfall days in March:
6.6 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:
0.4 days - Average snowfall days in November:
4.4 days - Average snowfall days in December:
10.8 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Williamstown, OH
- 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 2min
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 18min).
- Average sunshine in January:
3h and 2min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
7h and 5min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 1min - Average sunshine in December:
3h and 5min
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 24min).
Average sunshine days
Williamstown, OH
- Average sunshine days in January:
10.7 days - Average sunshine days in February:
9.8 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
9.7 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
9.7 days - Average sunshine days in August:
10.9 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
16.3 days - Average sunshine days in December:
11.7 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index
Williamstown, OH
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Williamstown, OH
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Williamstown, 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).
Williamstown, Ohio, USA
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