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February 2012 Climate Report for Puerto Rico and the U.S. Virgin Islands

February 2012 Highlights

New Records for February 2012

Saint Croix 

Date	New Record	Old Record
February 5th	A daily maximum rainfall of 0.19".	This breaks the old record of 0.18" set in 1988.

 

Other notable temperatures and precipitation amounts

Notable February 2012 High's	Notable February 2012 Low's
90°F   February 11th   Gurabo Substation	44°F   February 13th   Adjuntas AES
90°F   February 22nd   Lajas  Substation	51°F   February 22nd   Cerro Maravilla

	Puerto Rico	Virgin Islands
Highest 24 hr Precip Total	4.12" Feb.14th Morovis	0.90" Feb.14th Christiansted Airport
Highest Weekly Rainfall Accum.	5.39" Feb.11th-17th Morovis	1.01" Feb.11th-17th Christiansted Airport

February 2012 Statistics

 Average February Temperatures/Precipitation (NCDC 1981-2010 averages):

	San Juan	Saint Thomas	Saint Croix
High	83.7°F	85.1°F	84.0°F
Low	72.0°F	72.5°F	72.3°F
Avg. T	77.9°F	78.8°F	78.2°F
Pcpn.	2.39’’	1.43’’	1.65’’

  February 2012 Observations:

	San Juan	Saint Thomas	Saint Croix
High	83.3°F(-0.4°F)	83.9°F(-1.2°F)	Missing
Low	72.2°F(+0.2°F)	72.6°F(+0.1°F)	Missing
Avg. T	77.8°F(-0.1°F)	78.2°F(-0.6°F)	Missing
Pcpn.	1.97"(-0.42")	1.00"(-0.43")	1.59"(-0.06")

 February 2012 extremes:

	San Juan	Saint Thomas	Saint Croix
High	88°F February 11th	86°F February 29th, 27th and 25th	86°F February 25th
Low	69°F February 20th	71°F February 20th, 19th and 16th	66°F February 18th

 Monthly Summary 

          A generally fair and mainly dry weather pattern prevailed across the local islands during the first two weeks of February with just passing showers along the north and east coast of Puerto Rico as well as over the U.S. Virgin Islands. This pattern of limited low level moisture and stable conditions helped to suppress significant afternoon convection across Puerto Rico. By mid-February, afternoon showers were noted each day across the interior and west sections of Puerto Rico due to diurnal heating combined with an increase in low level moisture and enough upper level dynamics. The remainder of February was dominated by a return to high pressure ridge and its associated fair weather pattern across the local islands.

Rainfall Accumulations Year to Date (YTD)    

 

  Figure A – Graphical Display of February 2012 precipitation across Puerto Rico and the U.S. Virgin Islands derived from a combination of rain gage and radar data.

 

Figure B – Graphical Display of YTD precipitation across Puerto Rico and the U.S. Virgin Islands derived from a combination of rain gage and radar data  

      

 

Sector	Rain YTD	Normal YTD	PON YTD
X North Coast	7.31	6.91	119%
X South Coast	1.96	1.87	114%
X North Slopes	6.20	5.98	115%
X South Slopes	2.71	4.12	73%
X East Interior	7.46	8.42	97%
X West Interior	7.64	6.32	136%
Puerto Rico Average	5.55	5.60	109%
X U.S. Virgin Islands	4.03	4.09	109%

PON= Percent of Normal YTD= Year to Date   

  Figure C – Display of YTD precipitation by climate sectors derived from rain gage data.

February Historical Statistics              

Highest February Temperatures on record:

San Juan	Saint Thomas	Saint Croix
96°F February 2nd 1983	93°F February 24th 1996	93°F February 10th 2005
93°F February 25th 2010	93°F February 9th 1993	91°F February 21th 1973
93°F February 11th 1992	93°F February 1st 1993	91°F February 19th 1973

Lowest  February Temperatures on record:

San Juan	Saint Thomas	Saint Croix
62°F February 7th 1968	64°F February 27th 1972	61°F February 5th 1979
62°F February 6th 1968	64°F February 26th 1972	62°F February 24th 1981
62°F February 5th 1968	65°F February 6th 1990	63°F February 23rd 1981

Wettest Februarys: 

San Juan	Saint Thomas	Saint Croix
7.90" February 1950	3.96" February 1954	4.23" February 1995
7.84" February 1918	3.79" February 1956	3.59" February 1988
7.34" February 1954	3.31" February 1983	3.54" February 1956

Driest Februarys:

San Juan	Saint Thomas	Saint Croix
0.05" February 1941	0.42" February 1987	0.11" February 2005
0.09" February 1902	0.47" February 1993	0.18" February 1983
0.20" February 1983	0.52" February 2010	0.30" February 1986

Decadal February Observations for San Juan, Puerto Rico

	2010-2012	2000’s	1990’s	1980’s	1970’s	1960’s
High	84.4°F	83.0°F	84.1°F	84.3°F	83.6°F	81.3°F
Low	72.6°F	71.1°F	70.9°F	71.0°F	71.7°F	68.9°F
Avg. T	78.5°F	77.1°F	77.5°F	77.6°F	77.7°F	76.0°F
Pcpn.	1.75"	1.91’’	2.57’’	2.75’’	1.60’’	2.13’’

Looking ahead toward the month of March

Average March Temperatures/Precipitation (NCDC 1981-2010 averages):

 

	San Juan	Saint Thomas	Saint Croix
High	84.9°F	85.9°F	84.6°F
Low	72.9°F	72.8°F	72.5°F
Avg. T	78.9°F	79.4°F	78.6°F
Pcpn.	1.95’’	1.42’’	1.56’’

 

 Moon/Sun/Tide Data for the Month of March 2012   

Sunrise/sunset data, phase of the moon, as well as tide data can all be found by going to the climate portion of the National Weather Service San Juan Climate homepage and then clicking on the astronomical tab.  

Click here to return to NWS San Juan Local Climate Web Page