Expand
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, the same as December, in Williamstown, Missouri, is another subzero cold winter month, with an average temperature varying between 18.9°F (-7.3°C) and 31.6°F (-0.2°C). January, recording an average high temperature of 31.6°F (-0.2°C) and a low temperature of 18.9°F (-7.3°C), is Williamstown's 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 varying between 36.1°F (2.3°C) and 22.6°F (-5.2°C). February registers an average high-temperature of a wintry 36.1°F (2.3°C), slightly varied from January's 31.6°F (-0.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Williamstown, Missouri, with an average temperature varying between 49.6°F (9.8°C) and 34.5°F (1.4°C). The shift from February to March sees an increase in the average high-temperature, transitioning from a cold 36.1°F (2.3°C) to a frosty 49.6°F (9.8°C). Weather in March »
Weather in April
April in Williamstown, Missouri, is a comfortable spring month, with an average temperature fluctuating between 44.2°F (6.8°C) and 61.9°F (16.6°C). In April, the meteorological conditions change with the average high-temperature moving from a chilly 49.6°F (9.8°C) in March to a refreshing 61.9°F (16.6°C). Weather in April »
Weather in May
May, the last month of the spring in Williamstown, is an agreeable month, with an average temperature ranging between min 54.3°F (12.4°C) and max 71.2°F (21.8°C). May sees a temperature increase, moving from a comfortable 61.9°F (16.6°C) in April to a pleasant 71.2°F (21.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Williamstown, Missouri, with an average temperature ranging between max 80.8°F (27.1°C) and min 63.7°F (17.6°C). As Williamstown enters June, the average high-temperature increases from the an agreeable 71.2°F (21.8°C) of May to a moderately hot 80.8°F (27.1°C). Weather in June »
Weather in July
July, like June, in Williamstown, Missouri, is a moderately hot summer month, with temperature in the range of an average low of 66.6°F (19.2°C) and an average high of 83.3°F (28.5°C). Temperature records mark July as the warmest month, with highs averaging 83.3°F (28.5°C) and lows at 66.6°F (19.2°C). For most parts of July, the heat index is computed to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Williamstown, is also a moderately hot month, with an average temperature ranging between max 82.8°F (28.2°C) and min 64°F (17.8°C). August denotes a minimal variation in the average high-temperature to a still warm 82.8°F (28.2°C) from July's 83.3°F (28.5°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 ranging between min 57.6°F (14.2°C) and max 77.4°F (25.2°C). The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 82.8°F (28.2°C) in August to a still warm 77.4°F (25.2°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Williamstown, Missouri, with an average temperature fluctuating between 63.3°F (17.4°C) and 46°F (7.8°C). The arrival of October corresponds with a shift in temperature, down from a warm 77.4°F (25.2°C) in September to a refreshing 63.3°F (17.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Williamstown, is also a frosty month, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 49.5°F (9.7°C). In November, the average high-temperature goes from a comfortable 63.3°F (17.4°C) in October to a frosty 49.5°F (9.7°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Williamstown, Missouri, with an average temperature varying between 37.6°F (3.1°C) and 25.7°F (-3.5°C). A subtle decrease in the average high-temperature marks December, falling from November's chilly 49.5°F (9.7°C) to an icy 37.6°F (3.1°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Williamstown?
January is the month when Williamstown, Missouri, sees the average lowest temperatures, with a high of 31.6°F (-0.2°C) and a low of 18.9°F (-7.3°C).
What is the driest month in Williamstown?
The month with the least rainfall in Williamstown is January, when the rain falls for 4.8 days and typically collects 1.22" (31mm) of precipitation.
How much does it rain in Williamstown?
In Williamstown, Missouri, during the entire year, the rain falls for 134.4 days and collects up to 27.44" (697mm) of precipitation.
When does it snow in Williamstown?
Months with snowfall are January through April, October through December.
What is the snowiest month in Williamstown?
January is the month with the most snowfall in Williamstown, Missouri. Snow falls for 7.4 days and accumulates 3.98" (101mm) of snow.
How many days does it snow in Williamstown?
Throughout the year, in Williamstown, Missouri, there are 24.7 snowfall days, and 11.69" (297mm) of snow is accumulated.
What is the month with the least sunshine in Williamstown?
With an average of 4.3h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Williamstown?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Williamstown, Missouri.
When is Daylight Saving Time (DST) in Williamstown?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Williamstown, Missouri, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Williamstown?
May is the month with the most rainfall in Williamstown, Missouri. Rain falls for 17.6 days and accumulates 3.7" (94mm) of precipitation.
When it does not snow in Williamstown?
In Williamstown, snow does not fall in May through September.
What is the most humid month in Williamstown?
June and July, with an average relative humidity of 81%, are most humid months.
When are the longest days in Williamstown?
With an average of 15h and 0min of daylight, June has the longest days of the year.
When is the highest UV index in Williamstown?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year in Williamstown?
July is the warmest month in Williamstown, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 66.6°F (19.2°C).
What month has the most sunshine in Williamstown?
With an average of 10.4h of sunshine, July has the most sunshine of the year in Williamstown, Missouri.
What is the least humid month in Williamstown?
October is the least humid month in Williamstown, with an average relative humidity of 71%.
What is the month with the shortest days in Williamstown?
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Williamstown, MO
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.6°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Williamstown, MO
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Williamstown, MO
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity
Williamstown, MO
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Williamstown, MO
- Average rainfall in January:
1.22" - Average rainfall in February:
1.3" - Average rainfall in March:
2.17" - Average rainfall in April:
3.15" - Average rainfall in May:
3.7" - Average rainfall in June:
3.58"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days
Williamstown, MO
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
9 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (4.7 days).
Average snowfall
Williamstown, MO
The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Williamstown, MO
- Average snowfall days in January:
7.4 days - Average snowfall days in February:
6.5 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.5 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:
0.4 days - Average snowfall days in November:
1 days - Average snowfall days in December:
5.1 days
The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Williamstown, MO
- 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 2min - Average daylight in June:
15h and 0min
- 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 0min - Average daylight in December:
9h and 2min
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 24min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Williamstown, MO
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
16.4 days - Average sunshine days in September:
17 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Williamstown, MO
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, MO
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Williamstown, MO
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).
Williamstown, Missouri, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
