August weather forecastMorristown, NJ
August
Weather in August
With the persisting summer heat, August continues the warm trend set in July, featuring highs of about 81.9°F (27.7°C). The city remains warmed under clear clouds with generous sunlight. Depicting reduced frequency, rainfall maintains balance, neither creating overly dry nor damp scenarios. Evenings become more comfortable compared to the day, promoting outdoor barbecues and evening strolls. A decrease in daylight hours indicates the gradual farewell to summer.Temperature
The shift into August in Morristown reveals an average high-temperature of a still warm 81.9°F (27.7°C), closely mirroring July's climate. Morristown, during the month of August, experiences an average low-temperature of 64.2°F (17.9°C).Heat index
The heat index in August is computed to be a tropical 87.8°F (31°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
April and August, with an average relative humidity of 74%, are the least humid months.Rainfall
In August, in Morristown, New Jersey, the rain falls for 16.3 days. Throughout August, 2.72" (69mm) of precipitation is accumulated. Throughout the year, in Morristown, there are 164.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
In Morristown, snow does not fall in June through September.Daylight
In Morristown, the average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:13 pm. On the last day of August, in Morristown, sunrise is at 6:24 am and sunset at 7:31 pm EDT.
Sunshine
In Morristown, the average sunshine in August is 10.1h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In August, a daily UV index of 6 turns into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Morristown, NJ
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in August
Morristown, NJ
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Morristown, NJ
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
Morristown, NJ
- Average humidity in August: 74%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).
Average rainfall in August
Morristown, NJ
- Average rainfall in August: 2.72"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in August
Morristown, NJ
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in August
Morristown, NJ
- Average snowfall in August: 0"
The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Morristown, NJ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Morristown, NJ
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Morristown, NJ
- Average sunshine days in August: 12.5 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in August
Morristown, NJ
- 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
Morristown, NJ
- Average cloud cover in August: 34
The months with the most cloud cover are February and March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in August
Morristown, NJ
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
