NORTH ISLAND NAS   (NZY)
LAT 32 42N
LONG 117 12W
ELEV 00026(ft) 00008(m)
TYPE NAVY SMOS V3 16031995
PERIOD OF RECORD 1945-1993


GENERAL SUMMARY:

               Naval  Pacific  Meteorology  and   Oceanography    
          Facility is located on the second deck of BLDG  516,    
          NA5 North Island Operations building, which is  near    
          the center of the land area comprising North  Island    
          and  the  city  of Coronado.  North  Island  is  the    
          northern extremity of the peninsula which forms  San    
          Diego  Bay. The peninsula is approximately 13  miles    
          lonq   and   the  Coronado-North  Island   area   is    
          approximately  3  x 11 miles.  The Bay  varies  from    
          less  than 1 mile in width in the channel to over  3    
          miles  in the South Bay.  Lindbergh Field is  across    
          the Bay, 2.1 miles north of the Facility.               
                                                                  
               A  ridge  of hills 400 feet high  extends  from    
          Point  Loma,  which is 316 miles  southeast  of  the    
          facility,  northward  to  about  3.6  miles   north-    
          northwest  of  the  facility.   To  the   northeast,    
          exclusive  of  the city areas, the land  is  typical    
          desert/gully/mesa/hill  type terrain which rises  to    
          an  elevation  of 1000 feet approximately  18  miles    
          inland, thence abruptly to the laguna Mountain range    
          40  to 50 miles east of San Dieqo.  The  station  is    
          exposed  to  the Pacific Ocean  from  the  southeast    
          throuqh the southwest, approximately 2000 feet  east    
          of  the  approach end of runway 29 and  is  oriented    
          parallel  to  the centerline of the  runway  with  a    
          baseline   of  400  feet.   Semi-automatic   weather    
          station AN/GMQ-29 and UMQ-5C are located on the  pad    
          500  feet  south of runway 11/29, 300 feet  west  of    
          taxiway  8, and 400 feet east of runway 18/36.   The    
          GMQ-32 is located south of runway 29,  approximately    
          1500  feet from the east end and 500 feet  from  the    
          centerline of the runway.                               

--------------------------------------------------------------

    Percent Frequency Daily PRECIPITATION AMOUNTS

                                                                                               PERCENT  TOTAL         TOTAL
                                                                                               OF DAYS   NO.          PRECIP
                                                                                                WITH     OF          (INCHES)
                                              INCHES                                           AMOUNTS   OBS   MEAN    HI     LOW  
      NONE  TRACE    .01  <=.05  <=.10  <=.25  <=.50  <=1.0  <=2.5  <=5.0 <=10.0 <=20.0  >20.0  >=.01  

JAN   71.5    6.5    1.5    5.2    3.0    4.9    3.5    2.4    1.4     .1      0      0      0  22.0    1488   1.91   7.44      T
FEB   72.4    8.9    1.0    3.3    3.6    4.6    3.0    2.3    1.0      0      0      0      0  18.8    1344   1.46   5.25      T
MAR   68.9   10.6    1.3    4.3    3.2    5.0    3.2    2.4    1.1      0      0      0      0  20.5    1488   1.71   6.34      T
APR   75.5   12.4    1.7    3.8    1.6    2.0    1.8     .9     .2      0      0      0      0  12.1    1470    .64   2.93      0
MAY   78.8   15.8    1.5    1.6     .9    1.0     .3     .1     .1      0      0      0      0   5.5    1517    .16   1.27      0
JUN   81.0   16.1     .7    1.5     .3     .3     .1     .1      0      0      0      0      0   3.0    1470    .06    .68      0
JUL   89.1    9.9     .3     .6     .1      0      0      0      0      0      0      0      0   1.1    1519    .01    .09      0
AUG   91.2    7.8     .1     .3     .3     .1      0     .1     .1      0      0      0      0   1.1    1519    .10   1.97      0
SEP   86.5    9.7     .6    1.2     .8     .7     .3     .1     .1      0      0      0      0   3.9    1470    .15   1.40      0
OCT   83.0    9.8    1.1    2.3     .9    1.4     .8     .5      0      0      0      0      0   7.1    1456    .33   2.49      T
NOV   79.5    5.9    1.2    2.8    2.2    3.8    2.5    1.4     .6      0      0      0      0  14.6    1468   1.10   5.74      0
DEC   75.7    7.5    1.2    3.0    2.7    4.4    3.2    1.6     .7     .1      0      0      0  16.8    1517   1.39   5.59      T
ANN   79.5   10.1    1.0    2.5    1.6    2.3    1.6    1.0     .4      *      0      0      0  10.4   17728   9.02  19.89   2.56


* = PERCENT < .05  
T = ZERO PRECIP, SNOWFALL OR SNOW DEPTH MEASURED BUT A TRACE WAS NOTED
+ = ANNUAL HI AND LOW VALUES ARE DERIVED FROM ANNUAL TOTALS
# = EXCESSIVE MISSING DATA - VALUE NOT COMPUTED


    Cumulative Percent Frequency Daily MINIMUM TEMPERATURES


Temp(F)  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  ANN

   >=75    0    0    0    0    0    0    0   .2   .5   .1    0    0   .1
   >=70    0    0    0    0    0   .1  5.5 12.8  7.0   .4    0    0  2.2
   >=65    0    0    0   .7  1.8  7.8 50.8 73.3 51.4 13.3   .4    0 16.9
   >=60  1.1   .4  1.7 10.0 35.9 73.8 97.9 99.5 94.7 60.4 10.2  1.1 41.0
   >=55 11.7 15.4 30.6 66.0 92.2 99.9  100  100 99.9 91.8 44.6 11.4 64.0
   >=50 42.5 57.5 78.2 95.3 99.9  100  100  100  100 99.3 83.7 47.0 83.8
   >=45 79.6 89.2 97.6 99.9  100  100  100  100  100 99.9 99.2 88.5 96.2
   >=40 97.2 99.0  100  100  100  100  100  100  100  100  100 99.1 99.6
   >=35 99.8 99.8  100  100  100  100  100  100  100  100  100  100  100
   >=30  100  100  100  100  100  100  100  100  100  100  100  100  100
   MEAN 48.6 50.0 52.3 55.5 58.4 61.1 64.8 66.2 64.7 60.2 53.8 49.3 57.2
   STDV  4.8  4.3  3.7  3.3  2.7  2.4  2.8  2.8  3.3  3.9  4.2  4.2  7.1
   #OBS 1488 1344 1488 1470 1517 1470 1519 1519 1470 1458 1468 151717728


* = PERCENT < .05  
# = EXCESSIVE MISSING DATA - VALUE NOT COMPUTED


    Cumulative Percent Frequency Daily MAXIMUM TEMPERATURES 


Temp(F)  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  ANN

  >=105    0    0    0    0    0    0    0    0   .1   .2    0    0    *
  >=100    0    0    0    0    0   .1    0    0   .5   .3    0    0   .1
   >=95    0    0   .1   .1   .1   .3    0    0  1.2   .6   .1    0   .2
   >=90    0    0   .1   .3   .3   .7   .4   .5  2.4  2.2   .1    0   .6
   >=85   .4   .2   .4  1.2  1.1  1.4  1.7  2.5  6.1  5.3  1.8   .1  1.9
   >=80  2.1  2.8  1.7  4.4  1.8  2.7  7.6 12.0 15.6 11.0  6.6  1.3  5.8
   >=75  7.3  7.7  5.0  9.7  5.2  8.8 37.2 52.3 43.3 24.3 16.5  6.9 18.8
   >=70 15.9 17.0 13.7 20.0 21.6 45.4 86.1 97.1 90.5 64.5 33.9 17.9 43.9
   >=65 34.2 37.6 38.4 55.8 76.6 95.1 99.9  100  100 96.6 73.1 41.1 71.0
   >=60 72.2 79.2 85.6 95.4 99.4  100  100  100  100 99.7 97.8 81.5 92.7
   >=55 96.2 97.9 99.7  100  100  100  100  100  100  100  100 99.1 99.4
   >=50 99.7 99.9  100  100  100  100  100  100  100  100  100  100  100
   >=45  100  100  100  100  100  100  100  100  100  100  100  100  100
   MEAN 63.4 64.1 64.3 66.3 67.3 69.6 73.7 75.2 74.9 72.2 68.4 64.4 68.7
   STDV  6.3  6.1  5.1  5.6  4.3  4.3  4.0  3.7  5.4  6.1  6.1  5.7  6.8
   #OBS 1488 1344 1488 1470 1517 1470 1519 1519 1470 1458 1468 151717728


* = PERCENT < .05  
# = EXCESSIVE MISSING DATA - VALUE NOT COMPUTED