August weather forecastColumbia, NJ
August
Weather in August
August, the last month of the summer in Columbia, is also a moderately hot month, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 80.1°F (26.7°C).Temperature
The ushering in of August brings an average high-temperature of a still warm 80.1°F (26.7°C), closely mirroring the 82.4°F (28°C) of July. August in Columbia is noted for a mean low-temperature of 59.7°F (15.4°C).Humidity
In August, the average relative humidity in Columbia is 78%.Rainfall
In Columbia, during August, the rain falls for 14.1 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 135.7 rainfall days, and 23.74" (603mm) of precipitation is accumulated.Snowfall
In Columbia, snow does not fall in June through September.Daylight
In August, the average length of the day in Columbia is 13h and 46min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:16 pm. On the last day of August, in Columbia, sunrise is at 6:26 am and sunset at 7:34 pm EDT.
Sunshine
The average sunshine in August is 9.6h.UV index
In Columbia, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during August morphs into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Columbia, NJ
- Average high temperature in August: 80.1°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 (32.9°F).
- Average low temperature in August: 59.7°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in August
Columbia, 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 (29.94"Hg).
Average wind speed in August
Columbia, NJ
- Average wind speed in August: 4.9mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in August
Columbia, NJ
- Average humidity in August: 78%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Columbia, NJ
- Average rainfall in August: 2.17"
The wettest month (with the highest rainfall) is July (2.48").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in August
Columbia, NJ
- Average rainfall days in August: 14.1 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in August
Columbia, NJ
- Average snowfall in August: 0"
The month with the highest snowfall is March (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Columbia, NJ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Columbia, NJ
- Average daylight in August: 13h and 48min
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: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in August
Columbia, NJ
- Average sunshine days in August: 14.9 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in August
Columbia, NJ
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Columbia, NJ
- Average cloud cover in August: 38
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in August
Columbia, NJ
- Average visibility in August: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





