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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, in Williamstown, Kentucky, is a wintry winter month, with an average temperature varying between 37°F (2.8°C) and 24.6°F (-4.1°C). Temperature records mark January as the coldest month, with highs averaging 37°F (2.8°C) and lows at 24.6°F (-4.1°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Williamstown, Kentucky, with an average temperature ranging between min 27.7°F (-2.4°C) and max 42.1°F (5.6°C). Williamstown's entry into February measures an average high-temperature of a still wintry 42.1°F (5.6°C), closely parallel to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Williamstown, Kentucky, with an average temperature ranging between max 52.3°F (11.3°C) and min 35.8°F (2.1°C). March's onset witnesses a shift in the average high-temperature, moving from a cold 42.1°F (5.6°C) in February to a fresh 52.3°F (11.3°C). Weather in March »
Weather in April
April in Williamstown, Kentucky, is a refreshing spring month, with an average temperature varying between 64.8°F (18.2°C) and 45.5°F (7.5°C). With the onset of April, Williamstown's average high-temperature experiences a rise, moving from March's fresh 52.3°F (11.3°C) to an enjoyable 64.8°F (18.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Williamstown, Kentucky, with an average temperature ranging between max 74.7°F (23.7°C) and min 55.8°F (13.2°C). May signals a shift in the average high-temperature, moving from April's comfortable 64.8°F (18.2°C) to a moderately hot 74.7°F (23.7°C). Weather in May »
Weather in June
June, the first month of the summer in Williamstown, is still a warm month, with an average temperature varying between 62.4°F (16.9°C) and 82°F (27.8°C). A slight uplift of average high-temperatures is noted in June, with temperatures adjusting from 74.7°F (23.7°C) in May to a still warm 82°F (27.8°C). Weather in June »
Weather in July
July, like June, in Williamstown, Kentucky, is another warm summer month, with an average temperature ranging between min 66°F (18.9°C) and max 85.3°F (29.6°C). July is the month when Williamstown's temperatures reach their peak, with averages of 85.3°F (29.6°C) and lows of 66°F (18.9°C). The heat index value for July is estimated at a very hot 96.8°F (36°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Williamstown, Kentucky, with an average temperature ranging between max 84.6°F (29.2°C) and min 64.6°F (18.1°C). The arrival of August sees an average high-temperature of a still warm 84.6°F (29.2°C), hardly diverging from July's 85.3°F (29.6°C). Weather in August »
Weather in September
September, the first month of the autumn in Williamstown, is still a warm month, with an average temperature varying between 58.5°F (14.7°C) and 78.3°F (25.7°C). Williamstown's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 84.6°F (29.2°C) in August to a still warm 78.3°F (25.7°C). Weather in September »
Weather in October
October, like September, in Williamstown, Kentucky, is another enjoyable autumn month, with an average temperature varying between 65.5°F (18.6°C) and 47.1°F (8.4°C). October is characterized by a reduction in the average high-temperature, from a moderately hot 78.3°F (25.7°C) in September to an enjoyable 65.5°F (18.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Williamstown, is another cool month, with an average temperature ranging between max 52°F (11.1°C) and min 36.5°F (2.5°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from an enjoyable 65.5°F (18.6°C) to a cool 52°F (11.1°C). Weather in November »
Weather in December
December, the first month of the winter in Williamstown, is also a wintry month, with an average temperature ranging between max 42.4°F (5.8°C) and min 31.1°F (-0.5°C). Williamstown's December weather shows a moderate shift in high-temperatures, falling from November's cool 52°F (11.1°C) to an icy 42.4°F (5.8°C). Weather in December »
Updated: Jun 6, 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 are the coldest months?
Williamstown notes the coldest temperatures in January, with a average high of 37°F (2.8°C) and a low of 24.6°F (-4.1°C).
How many days does it rain?
In Williamstown, during the entire year, the rain falls for 169.6 days and collects up to 36.02" (915mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
How many days does it snow?
In Williamstown, during the entire year, snow falls for 37 days and aggregates up to 12.87" (327mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4h of sunshine.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The months with the highest humidity are February and December, with an average relative humidity of 81%.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 8.8 days and accumulates 3.35" (85mm) 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 rainiest month?
The month with the most rainfall is April, when the rain falls for 16.6 days and typically aggregates up to 3.82" (97mm) of precipitation.
When it does not snow?
In Williamstown, snow does not fall in May through September.
When are the longest days?
June has the longest days of the year, with an average of 14h and 48min of daylight.
What is the month with the most sunshine?
The months with the most sunshine are June and July, with an average of 10.1h of sunshine.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest?
Williamstown records the warmest temperatures in July, averaging a high of 85.3°F (29.6°C) and a low of 66°F (18.9°C).
What is the least humid month?
August is the least humid month, with an average relative humidity of 74%.
What is the driest month?
September is the month with the least rainfall. Rain falls for 13.9 days and accumulates 2.13" (54mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Williamstown, KY
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure
Williamstown, KY
- 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:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.13"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Williamstown, KY
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.9mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity
Williamstown, KY
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Williamstown, KY
- Average rainfall in January:
2.52" - Average rainfall in February:
3.11" - Average rainfall in March:
3.39" - Average rainfall in April:
3.82" - Average rainfall in May:
3.78" - Average rainfall in June:
3.03"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.72" - Average rainfall in September:
2.13" - Average rainfall in October:
2.48" - Average rainfall in November:
2.8" - Average rainfall in December:
3.07"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days
Williamstown, KY
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
11.9 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
11.9 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (10.6 days).
Average snowfall
Williamstown, KY
The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Williamstown, KY
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.9 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:
3 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Williamstown, KY
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
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:
4h and 0min - Average sunshine in February:
5h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 1min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Williamstown, KY
- Average sunshine days in January:
12.4 days - Average sunshine days in February:
10.5 days - Average sunshine days in March:
11.4 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
17 days - Average sunshine days in November:
16.8 days - Average sunshine days in December:
12.8 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is February (10.5 days).
Average UV index
Williamstown, KY
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Williamstown, KY
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Williamstown, KY
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
Williamstown, Kentucky, USA
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