Cloud Cover in the USVI

Cloud Cover in the Virgin Islands


the Virgin Islands Cloud Cover
Percent Frequencies by Type of Cloud Cover
MonthClearScatteredBrokenOvercast
January Float % Float % Float % Float %
February Float % Float % Float % Float %
March Float % Float % Float % Float %
April Float % Float % Float % Float %
May Float % Float % Float % Float %
June Float % Float % Float % Float %
July Float % Float % Float % Float %
August Float % Float % Float % Float %
September Float % Float % Float % Float %
October Float % Float % Float % Float %
November Float % Float % Float % Float %
December Float % Float % Float % Float %
Annual Float % Float % Float % Float %


the Virgin Islands Clear Skies by Time of Day
Percent Frequencies by Type of Cloud Cover
MonthEarly
Morning
Late
Morning
Early
Afternoon
Late
Afternoon
Early
Evening
Overall
January 6.4 % 2.7 % 2.7 % 4.9 % 17.5 % 7.1
February 3.6 % 4.0 % 3.3 % 6.7 % 14.1 % 6.4
March 3.4 % 1.8 % 1.9 % 6.0 % 14.0 % 5.7
April 1.6 % 1.7 % 2.9 % 2.7 % 10.0 % 4.2
May 0.9 % 0.4 % 0.2 % 0.4 % 4.7 % 1.8
June 0.9 % 0.4 % 0.5 % 0.4 % 2.5 % 1.0
July 1.3 % 0.2 % 0.4 % 0.0 % 3.3 % 1.2
August 1.4 % 0.0 % 0.0 % 0.2 % 2.9 % 1.1
September 2.3 % 0.2 % 0.6 % 0.7 % 4.5 % 2.0
October 3.1 % 0.4 % 0.6 % 1.1 % 5.5 % 2.3
November 2.7 % 1.2 % 0.7 % 1.6 % 6.3 % 2.6
December 5.8 % 4.2 % 2.1 % 2.4 % 13.8 % 5.8
Annual 2.8 % 1.4 % 1.3 % 2.2 % 8.2 % 3.4

the Virgin Islands Scattered Cloud Cover by Time of Day
Percent Frequencies by Type of Cloud Cover
MonthEarly
Morning
Late
Morning
Early
Afternoon
Late
Afternoon
Early
Evening
Overall
January 72.6 % 73.7 % 72.9 % 74.2 % 69.4 % Float %
February 72.8 % 72.7 % 71.5 % 69.5 % 71.1 % Float %
March 73.6 % 75.3 % 77.2 % 70.0 % 69.0 % Float %
April 67.6 % 67.2 % 67.3 % 66.9 % 67.8 % Float %
May 54.4 % 56.8 % 57.5 % 50.3 % 60.0 % Float %
June 63.3 % 63.6 % 59.7 % 57.7 % 64.4 % Float %
July 69.8 % 67.9 % 65.1 % 61.2 % 70.4 % Float %
August 71.5 % 73.9 % 67.6 % 64.4 % 71.7 % Float %
September 69.3 % 68.5 % 59.7 % 57.0 % 62.6 % Float %
October 66.6 % 69.5 % 63.7 % 59.2 % 66.4 % Float %
November 70.8 % 70.7 % 64.6 % 63.7 % 71.7 % Float %
December 69.0 % 70.3 % 69.1 % 70.1 % 71.0 % Float %
Annual 68.5 % 69.2 % 66.3 % 63.7 % 67.9 % Float %


the Virgin Islands Broken Cloud Cover by Time of Day
Percent Frequencies by Type of Cloud Cover
MonthEarly
Morning
Late
Morning
Early
Afternoon
Late
Afternoon
Early
Evening
Overall
January 18.9 % 19.6 % 20.6 % 18.1 % 10.6 % Float %
February 19.7 % 18.8 % 21.2 % 20.2 % 10.6 % Float %
March 19.1 % 18.9 % 15.7 % 18.5 % 10.7 % Float %
April 23.8 % 23.9 % 22.6 % 23.3 % 15.8 % Float %
May 30.8 % 30.0 % 27.1 % 33.9 % 23.2 % Float %
June 24.5 % 24.8 % 27.7 % 28.1 % 22.2 % Float %
July 18.4 % 22.6 % 23.4 % 27.0 % 18.7 % Float %
August 21.4 % 19.6 % 22.7 % 25.2 % 16.0 % Float %
September 18.4 % 21.7 % 29.6 % 28.8 % 22.3 % Float %
October 21.3 % 22.0 % 26.4 % 27.1 % 17.0 % Float %
November 17.6 % 19.3 % 25.6 % 24.8 % 11.3 % Float %
December 19.5 % 20.3 % 24.5 % 21.8 % 11.3 % Float %
Annual 21.1 % 21.8 % 23.9 % 24.7 % 15.9 % Float %

the Virgin Islands Overcast Cloud Cover by Time of Day
Percent Frequencies by Type of Cloud Cover
MonthEarly
Morning
Late
Morning
Early
Afternoon
Late
Afternoon
Early
Evening
Overall
January 2.1 % 4.1 % 3.8 % 2.9 % 2.5 % Float %
February 3.9 % 4.4 % 4.1 % 3.6 % 4.2 % Float %
March 3.9 % 4.0 % 5.2 % 5.5 % 6.4 % Float %
April 6.9 % 7.2 % 7.2 % 7.1 % 6.4 % Float %
May 13.7 % 12.8 % 15.2 % 15.5 % 12.1 % Float %
June 11.3 % 11.2 % 12.0 % 13.9 % 10.9 % Float %
July 10.5 % 9.3 % 11.2 % 11.8 % 7.6 % Float %
August 5.7 % 6.5 % 9.7 % 10.2 % 9.4 % Float %
September 9.9 % 9.6 % 10.2 % 13.6 % 10.5 % Float %
October 9.0 % 8.2 % 9.4 % 12.6 % 11.1 % Float %
November 8.9 % 8.7 % 9.2 % 9.9 % 10.7 % Float %
December 5.8 % 5.2 % 4.3 % 5.8 % 3.9 % Float %
Annual 7.6 % 7.6 % 8.5 % 9.4 % 8.0 % Float %


 

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