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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 Williamsburg, Iowa, with an average temperature varying between 15.3°F (-9.3°C) and 27.1°F (-2.7°C). With average high temperatures of 27.1°F (-2.7°C) and lows of 15.3°F (-9.3°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Williamsburg, Iowa, with temperature in the range of an average low of 18.1°F (-7.7°C) and an average high of 31.5°F (-0.3°C). Williamsburg's shift into February sets the average high-temperature at a still freezing cold 31.5°F (-0.3°C), a figure that deviates only slightly from January's 27.1°F (-2.7°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Williamsburg, Iowa, with an average temperature ranging between min 31.6°F (-0.2°C) and max 46°F (7.8°C). Williamsburg's transition into March marks a considerable rise in the average high-temperature, moving up from a subzero cold 31.5°F (-0.3°C) in February to a chilly 46°F (7.8°C). Weather in March »
Weather in April
April in Williamsburg, Iowa, is a refreshing spring month, with an average temperature ranging between min 41.5°F (5.3°C) and max 58.6°F (14.8°C). April sees a temperature increase, moving from a chilly 46°F (7.8°C) in March to a refreshing 58.6°F (14.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Williamsburg, Iowa, with an average temperature fluctuating between 69.4°F (20.8°C) and 52.3°F (11.3°C). May brings a rise in the average high-temperature, transitioning from April's mild 58.6°F (14.8°C) to an agreeable 69.4°F (20.8°C). Weather in May »
Weather in June
June, the first month of the summer in Williamsburg, is a moderately hot month, with an average temperature varying between 79°F (26.1°C) and 62.1°F (16.7°C). The shift into June is accompanied by a temperature increase, with the average high-temperature rising from an agreeable 69.4°F (20.8°C) in May to a moderately hot 79°F (26.1°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Williamsburg, Iowa, with an average temperature fluctuating between 64.8°F (18.2°C) and 81.1°F (27.3°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 81.1°F (27.3°C) and a low of 64.8°F (18.2°C). The heat index in July is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Williamsburg, Iowa, with an average temperature varying between 62.2°F (16.8°C) and 80.6°F (27°C). Shifting into August, Williamsburg records an average high-temperature of a still moderately hot 80.6°F (27°C), presenting minor fluctuations compared to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Williamsburg, Iowa, with an average temperature ranging between min 55.6°F (13.1°C) and max 74.8°F (23.8°C). In September, the meteorological conditions change slightly, with the average high-temperature moving from 80.6°F (27°C) in August to a still warm 74.8°F (23.8°C). Weather in September »
Weather in October
October, the same as September, in Williamsburg, Iowa, is a moderate autumn month, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 60.1°F (15.6°C). October signals a significant shift in the average high-temperature, falling from September's moderately hot 74.8°F (23.8°C) to a refreshing 60.1°F (15.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Williamsburg, is also a frosty month, with an average temperature varying between 46.6°F (8.1°C) and 32.4°F (0.2°C). With November's arrival, Williamsburg's weather changes as the average high-temperature falls from a refreshing 60.1°F (15.6°C) in October to a chilly 46.6°F (8.1°C). Weather in November »
Weather in December
December, the first month of the winter in Williamsburg, is still a cold month, with an average temperature ranging between max 33.6°F (0.9°C) and min 22.6°F (-5.2°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 46.6°F (8.1°C) to an icy 33.6°F (0.9°C). Weather in December »
Updated: Feb 12, 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 month in Williamsburg?
In Williamsburg, January is known for its average lowest temperatures, reaching a high of 27.1°F (-2.7°C) and a low of 15.3°F (-9.3°C).
What are the most humid months in Williamsburg?
The months with the highest humidity in Williamsburg, Iowa, are January and July, with an average relative humidity of 84%.
What is the driest month in Williamsburg?
January is the month with the least rainfall in Williamsburg, Iowa. Rain falls for 4.8 days and accumulates 1.18" (30mm) of precipitation.
How many days does it rain in Williamsburg?
In Williamsburg, Iowa, during the entire year, the rain falls for 142 days and collects up to 29.09" (739mm) of precipitation.
When does it snow in Williamsburg?
January through May, October through December are months with snowfall in Williamsburg.
When does it snow the most in Williamsburg?
January is the month with the most snowfall in Williamsburg. Snow falls for 9.6 days and accumulates 4.8" (122mm) of snow.
How much does it snow in Williamsburg?
In Williamsburg, during the entire year, snow falls for 35.1 days and aggregates up to 15.43" (392mm) of snow.
What is the month with the least sunshine in Williamsburg?
With an average of 4.1h of sunshine, January has the least sunshine of the year in Williamsburg, Iowa.
What is the month with the lowest UV index in Williamsburg?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Williamsburg, Iowa.
When is Daylight Saving Time (DST) in Williamsburg?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Williamsburg, 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 Williamsburg?
May is the month with the most rainfall in Williamsburg, Iowa. Rain falls for 18.5 days and accumulates 4.33" (110mm) of precipitation.
When it does not snow in Williamsburg?
June through September are months without snowfall in Williamsburg.
When are the longest days in Williamsburg?
June has the longest days of the year, with an average of 15h and 12min of daylight.
When is the highest UV index in Williamsburg?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest in Williamsburg?
July is the month that records the highest temperatures in Williamsburg, Iowa, with averages ranging from a high of 81.1°F (27.3°C) to a low of 64.8°F (18.2°C).
What month has the most sunshine in Williamsburg?
July has the most sunshine of the year, with an average of 10h of sunshine.
What is the least humid month in Williamsburg?
With an average relative humidity of 72%, October is the least humid month in Williamsburg, Iowa.
What is the month with the shortest days in Williamsburg?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Williamsburg, IA
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure
Williamsburg, IA
- Average pressure in January:
30.14"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:
29.89"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:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Williamsburg, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Williamsburg, IA
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Williamsburg, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.26" - Average rainfall in March:
2.01" - Average rainfall in April:
3.11" - Average rainfall in May:
4.33" - Average rainfall in June:
4.02"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Williamsburg, IA
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
18.5 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
11 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
6.4 days
The months with the highest number of rainy days are May and June (18.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Williamsburg, IA
- Average snowfall in January:
4.8" - Average snowfall in February:
4.76" - Average snowfall in March:
1.57" - Average snowfall in April:
0.63" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Williamsburg, IA
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
1.3 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:
0.5 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
6.7 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Williamsburg, IA
- 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 4min - 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 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Williamsburg, IA
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
9.7 days - Average sunshine days in June:
9.1 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
14.1 days - Average sunshine days in September:
16 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.1 days).
Average UV index
Williamsburg, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Williamsburg, IA
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Williamsburg, IA
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Williamsburg, Iowa, USA
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