Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Holliston's weather in August, with an average high-temperature of a still warm 81°F (27.2°C), subtly shifts from July's 82.4°F (28°C). An average low-temperature of 61.9°F (16.6°C) is observed in Holliston during the August nights.Heat index
The heat index value for August is appraised at a tropical 86°F (30°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
In Holliston, the average relative humidity in August is 75%.Rainfall
In Holliston, Massachusetts, during August, the rain falls for 15.2 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, in Holliston, Massachusetts, there are 157.5 rainfall days, and 29.53" (750mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Holliston.Daylight
In August, the average length of the day is 13h and 50min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:10 am and sunset at 7:20 pm EDT.
Sunshine
With an average of 10.4h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index in Holliston are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What is the temperature in August in Holliston?
What is the average humidity in August in Holliston?
How much does it rain in Holliston in August?
When it does not snow in Holliston?
What is the average length of the day in August in Holliston?
When is the sunrise / sunset in August in Holliston?
What month has the most sunshine in Holliston?
How long on average sun shines in August in Holliston?
What are the months with the highest UV index in Holliston?
What is the UV index reading in August in Holliston?
Average temperature in August
Holliston, MA
- Average high temperature in August: 81°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in August
Holliston, MA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Holliston, MA
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in August
Holliston, MA
- Average humidity in August: 75%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall in August
Holliston, MA
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is April (2.87").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in August
Holliston, MA
- Average rainfall days in August: 15.2 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in August
Holliston, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Holliston, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Holliston, MA
- Average daylight in August: 13h and 5min
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 August: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Holliston, MA
- Average sunshine days in August: 13 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11 days).
Average UV index in August
Holliston, MA
- Average UV index in August: 6
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, March, November and December (UV index 2).
Average cloud cover in August
Holliston, MA
- Average cloud cover in August: 33
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Holliston, MA
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are February, August and September (5mi).
Holliston, Massachusetts, USA
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