------------------INTERNATIONAL STATION METEOROLOGICAL CLIMATE SUMMARY------------------- :STA 722974 | KNZJ | EL TORO MCAS ,CA,US :LAT 33 40N :LONG 117 44W :ELEV 00383(ft) 00117(m) :TYPE NAVY SMOS V3 16031995 44 - ISMCS Station Climatic Narrative POR defined in data tables Marine Corps Air Station El Toro, California is located in the southern section of an area known as the "Los Angeles Basin". The air station is screened on 3 sides by mountain barriers. Land in the immediate vicinity of the station is cleared and cultivated and under extensive urbanization. The region in which the air station is located enjoys one of the most equable climates in North America. The summer begins in April and lasts through October. Increased stability in the form of haze, fog and stratus. The prevailing wind direction is west at about 5 knots. The dry easterly winds (Santa Ana) that sometimes blow for several days at a time, bring temperatures in the 90's, and at times over 100 degrees F. Since September 1949, this station has recorded a total of 25 days which were under the influence of the "Santa Ana" winds. The "Santa Ana" wind that is experienced at this station may occur in almost any month of the year; however, it is predominately a winter phenomenon. Precipitation at this station is primarily a winter phenomenon. The average rainfall is approximately 12 inches and the major portion of it usually falls during winter storms. Snow has been observed at this station upon rare occasions and the accumulation has been negligible. ------------------INTERNATIONAL STATION METEOROLOGICAL CLIMATE SUMMARY------------------- :STA 722974 | KNZJ | EL TORO MCAS ,CA,US :LAT 33 40N :LONG 117 44W :ELEV 00383(ft) 00117(m) :TYPE NAVY SMOS V3 16031995 37 - STATION CLIMATIC SUMMARY POR: (HOURLY): 1945-1993 TEMPERATURE (DEG F)| PRECIPITATION (INCHES) (^) |REL HUM|VAP|DEW| PR |WIND (KTS) | | MEAN NO. OF DAYS WITH (&) MEANS |EXTREME| PRECIP. |SNOWFALL (@)|PERCENT|PR |PT.| ALT| |SKY|PRECIP.|SNOW- | | | TEMP (DEG F) | | | | | | | |24H| | |24H| (LST) |IN.|(F)| FT.|PREVAIL|MAX|CVR|INCHES |FALL(")|TH |FOG|MAX|MAX|MIN|MIN MAX|MIN|AVG|MAX|MIN| MEAN| MAX| MIN|MAX|MEAN|MAX|MAX| AM| PM|HG.| | $ |DIR|SPD|GST| + | >=| >=| >=| >=|STM| * | >=| >=| <=| <= | 07| 16| |.01|.50|.10|1.5| | 90| 70| 32| 10 JAN 65 45 55 93 25 2.5 12.6 0 5.2 T 1 1 68 54 .24 39 60 E 4 62 SCT 6 2 # 0 1 11 # 8 # 0 FEB 67 46 57 94 30 2.4 11.7 T 3.0 0 0 0 72 55 .27 42 60 E 4 65 SCT 5 2 0 0 # 11 # 9 # 0 MAR 67 47 57 96 32 2.4 10.2 T 3.7 0 0 0 79 57 .30 45 65 W 6 53 BRK 7 1 0 0 1 11 # 10 # 0 APR 71 50 61 101 33 1.0 5.4 0 2.2 0 0 0 77 54 .33 48 60 W 6 51 SCT 4 1 0 0 # 10 1 15 0 0 MAY 73 54 63 101 39 .2 1.2 0 .9 0 0 0 78 57 .38 51 55 W 6 70 OVR 2 # 0 0 # 12 1 21 0 0 JUN 77 57 67 107 44 0 .3 0 .3 0 0 0 81 57 .44 55 60 W 6 35 OVR 1 0 0 0 # 16 1 27 0 0 JUL 82 61 72 110 48 T .3 0 .3 0 0 0 82 53 .50 59 55 W 6 47 CLR # 0 0 0 # 18 3 31 0 0 AUG 83 62 73 104 47 .1 .8 0 .6 0 0 0 83 55 .52 60 60 W 6 36 CLR 1 # 0 0 # 19 4 31 0 0 SEP 82 60 71 116 45 .3 2.2 0 1.3 0 0 0 79 54 .48 57 65 W 6 43 CLR 1 # 0 0 # 17 5 29 0 0 OCT 77 56 67 108 38 .3 1.7 T 1.2 0 0 0 74 55 .38 52 60 W 6 45 SCT 2 # 0 0 1 15 3 27 0 0 NOV 71 50 61 99 35 1.4 6.7 0 2.8 0 0 0 66 52 .28 43 60 E 4 63 SCT 4 1 0 0 # 12 # 16 0 0 DEC 66 46 56 93 28 1.8 5.5 T 2.8 0 0 0 65 53 .24 39 60 E 4 71 SCT 5 1 0 0 # 11 # 9 # 0 ANN 73 53 63 116 25 12.4 31.4 3.9 5.2 T 1 1 75 55 .35 49 65 W 5 71 SCT 38 8 # 0 3 163 17 232 1 0 POR 49 49 49 49 49 49 49 49 49 48 48 48 49 49 48 48 47 48 48 46 47 49 49 48 48 40 40 49 49 49 49 T = TRACE AMOUNTS ( < .05 < .5 INCHES # = MEAN NO. DAYS < .5 DAYS $ = PRESSURE ALTITUDE IN TENS OF FEET (I.E. 50 = 500 FEET) @ = NAVY STATIONS REPORT HAIL AS SNOWFALL; ALSO NWS FROM JULY,1948 - DEC.,1955 + = THE PREDOMINANT SKY CONDITION * = VISIBILITY IS NOT CONSIDERED & = ANN TOTALS MAY NOT EQUAL SUM OF MONTHLY VALUES DUE TO ROUNDING ^ = 24 HR MAX PRECIP AND SNOWFALL ARE DAILY TOTALS (MID-NIGHT TO MID-NIGHT) I = EXCESSIVE MISSING DATA - VALUE NOT COMPUTED " = INCHES MEAN NO. OF DAYS WITH (&) | PRECIPITATION | OBSTR TO VISION | |FRZ | |HAIL| |SMOK|BLOW|DUST| OBS| R/DZ|R/DZ|SNOW|/SLT|PRCP|HAZE|SNOW|SAND| VIS| JAN 8 0 # # 8 13 0 # 17 FEB 8 0 0 # 8 12 0 0 15 MAR 9 0 0 # 9 11 0 # 15 APR 8 0 0 # 8 12 0 0 14 MAY 9 0 0 0 9 14 0 # 17 JUN 6 0 0 0 6 18 0 0 21 JUL 3 0 0 0 3 22 0 # 24 AUG 3 0 0 0 3 22 0 # 24 SEP 5 0 0 0 5 21 0 0 23 OCT 7 0 0 # 7 20 0 # 21 NOV 6 0 0 # 6 14 0 # 17 DEC 7 0 0 # 7 14 0 # 17 ANN 79 0 # # 79 193 0 1 225 POR 40 40 40 40 40 40 40 40 40 & = ANN TOTALS MAY NOT EQUAL SUM OF MONTHLY VALUES DUE TO ROUNDING I = EXCESSIVE MISSING DATA - VALUE NOT COMPUTED # = MEAN NO. DAYS < .5 DAYS
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