The weather in August in Jamestown

It's pleasantly warm in August in Jamestown with an average temperature of 20°C. Temperatures this month range from a low of 18°C to a high of 22°C. At night, you can expect temperatures between 12°C and 14°C.

Looking for great weather? August is a good time to be in Jamestown. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Jamestown, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 30°C in 2016, Jamestown reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 14°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 17°C.

Rainfall amount

According to weather history, there is only 8,5 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in August for Jamestown

Click on any day in August to get detailed info about the usual weather on that day in Jamestown. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Jamestown New York
Average temperature 20°C 30°C
Max. temperature 22°C 31°C
Min. temperature 12°C -5°C
Total precipitation 8,5 mm 79 mm
Rainy days 3 days 13 days

Start of August

The month of August starts in Jamestown with mild temps, averaging around 20°C during the day and nights around 14°C.

Mid August

By mid-August, daytime temps rise to around 21°C, with nights around 14°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of August

By the end of August, the average daytime temperature in Jamestown is around 20°C, while nighttime temps are about 13°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

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UV index

The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Jamestown for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in Jamestown, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Jamestown

Temperature in August in Jamestown over the years

Precipitation charts

These charts show the average amount of precipitation in August in Jamestown, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in Jamestown

Total precipitation in August in Jamestown over the years

Daily UV index in August in Jamestown

This chart shows the average daily UV index in August in Jamestown, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in August in Jamestown

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Average weather in Jamestown by month

Click on a month below to see detailed weather info for Jamestown. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.