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<br />WEST[llr-J BOut-mAIlY WATH BULLETIN 1%5 INTERr-JATION"L BOUNDAR'I AND WATER COoWYllSSION <br /> <br />GENERAL HYDROLOGIC CONDITIONS FOR 1965 <br /> <br />San Pedro Riyer <br /> <br />Dur~.il \965, the ;werage Il.TJlUa:. terl1p(:raWre ""'I<~ bt:low Durmal. Tne annual preClplr.lltion, liS me;15Ured a, Coronado <br />National Munumem Headquaners, was lle% of the 1961.19ti5 mean "r 19.93 U1ches. The stream flow at the lmernatJonal <br />bounduywa5 10,565 acre-feet, ..5% of U'" 1951-1965 nonnal. <br /> <br />Santa Cruz: River <br /> <br />During 196~, the a"crllgc IUlnual temperal1Jre (/Ver the warerllhetl wolt; 50mewhat bel....... nonnnl ami the annual preclpi- <br />tauCJll wa~ about 114% of the 27-ye;u 19;19- 1~65 mellJl. Runoff mea5ured ilt the N~ale5 GagIng S13uon wher" the 5trelll11 <br />re-enters the United 51l1te5 was 23,938 acre-feet. The rota! fllI10lf for the )'ear m"asur...d al the gagl"g 5Lauon /lCar Lo- <br />cruel, Anzuna, where the stream enters MelLico (rom the Unltcd SLates .....as 1,416 aCI"e-leet. Therefore, neglecting stream <br />now depletJ0Il5 m Meltlco, we records mUlcate a cOIltnbut.ivn (,r abouI 22, 522 acre-f~et from the loop (If the rP.-er IYJ11g In <br />Me;.Jco, Or approumately 9~% 01 !he now~ reaching Ute Nogale! st.ltlan. <br /> <br />Alamo and New Rivera <br /> <br />Dunng 19b5, the average lInnual ternperaturl" over !he dr;1lnlge area.'\: 01 the A1i1llhl OIlld New Rlvo:rs, Be I"ecorded 81 <br />El Cenrro, Califorrua, and at MeJJcali, B3Ja California, Wa5 71 and 72 degree.s, re5pectJvely, 1.7 Ol!ld 2.0 de!l'ree~ below <br />the respe.:t.ive normals. <br /> <br />At El Centro. the preclplliltJon "'311 about 121% of the long-reml nlcan and In Me'IJcnll we annual preClplUltlc," "'IS <br />tol% ot the 40-year avcrage. The rOl:al flo.... of the New River at the International boundary J11 196'; ",as I] I, 319 lIcr,,-feer <br />",hicll was about 166'if,oftlle 1943-/965 normal. <br /> <br />Salton Sea <br /> <br />DurLng 1965, tho: averagc aJUlual temperatUIearound the Sallon Sea ",as about 97%1)/ tho: long-term a""rllgo: whLie the <br />Illnua] preClpltauon recorded at Bra"'ley, Caltforrua, ....as llpprOlilmately 1~9% of the lon!(-term mean of 1.2b In.;:h"s, The <br />water surface 01 the Salton Sea lo....er-ed IIpproX!lllately 0,2 (OOt dunng thc year. The maxlmum stllge, 2>2.J Jeet beluw <br />mea.n sea level, wa5 recorded on several days durmg Apnl and May 19to~. The mInimum ~tage, 231.3 feet bt:low mean <br />sea level, w.s recorded on so:veral days dunng Septel11ber and October 1965. <br /> <br />