76 Table 1. - Surface Water 
Means and 
Years January February March April May June July 
Temp. Dens. Temp. Dens. Temp. Dens. Temp. Dens. Temp. Dens. Temp. Dens. Temp. Dens. 
°C N75 °C 7s °C is °C 715 “Cc 75 °C N75 °C O75 
MANZANILLO, 
Mean 26.) 25.71 (2529 26.0 |) 24,326.11 24.5 26.2 261 2625 27. Zeit wegen 
Maximum Bi 27. Gi Bin 27.5 b 26h P70 2B" 12003. B08 278 3d 20 ee 
Mean Max, (27-9) 26.4) 29.1 26.51 26.0 26.4 26,3 26.6 27.7 26.7 28:9 2607 eo. peeee 
Mean Min, |25.1 24.9 24.2 25.5) 22.1 25.6 22.9 25.8 24.2 25.9 25.4 250% Bole eee 
Minimum 23), SPAs OF reef eS AE A Ge e2be P O020 See ee P25. 2 eee 24.0 26 “2008 
MAZATLAN, 
195361954 21.9) 26.0°° 21.7 26.0) 24.0 26.0 ° 2255 2622 1 23.9-°26.4 28°52 265 Tee 
1955=1959 |\22.2 26.0'° 20.7 26.1, 20.3°26.3 22.3 2654 25.2 26.4 28.6 26.5 Beceem 
1960-1964 | 21.3 25.6 21.0 25.8: 20V0 26.1 21.9 2671 “24293 26.6 ‘26.8 2654 Gaeeeeeee 
1965 21.1 25.8) 20.6 25.6. 20.6 25.8 22.8 25.9 24.8.26.0 27.9 26,4" Zope 
1966 232 Lb Zeid 258) Qe 2507 2307 25.9 24.9 25.9 29.226. 1 ieee 
1967 = = 2222 25. OF NIP G1 1223) 4a 24-63 26.9 “28.0 "2731 © teen eae 
1968 2220, 25.6) 23.1 25.8, 25 25.3 21.6 26.7 124.8 26.5 (25.6 26.4 see 
Mean 218 25.8! 21.3 25.9) 20.9 26.0 22.2 26.20-24.6 26.4 27.8 26.5 eae 
Maximum 26 OOS L261. . Daelh” Zo. veoh - G29) o>) AFA 28.0 Ft 28.2. Sie ee 
Mean. Max, | 23.1 26.4 ° (23.1 26.51. 23.2 26.6 24.39 °26.8 927.2 27.1 29.7727.1 Sorcerers 
Mean Min, | 20.3 25.2 19.3 25.4. 18.1 25.5 19.9 25.7 217.8 25.8 25.7 25.8 ‘a2en2watae 
Minimum 16. Bio} 25. 2-21 Ae. 23,8 “12 . 26219 25.2 123. *24.6 SZC 
TOPOLOBAMPO, 
195631959 119.6 26.6 20.7 26.8 .20.8 27.0 123.7274 26.3 27.7 "29.8 .2850 9 3 laa 
bOGOEI964 118.4 26.0 19.1 26.3) 20.6-26.7 23.0 2721 (25.9 27.6 “292292728 to0aee ae 
1965 19.3 26.4 19.1 26.3 20.3. 26.5 23.6 -=-- 25.9 27.8 28.8 27.5. ease 
1966 19.4 26.3 19.2 26.4 20.4 26.1 26.4 27.4 27.6 27.6 29.4 27.7 SOmemegmz 
Mean 19.0; 26..3--19..6-26.5° 20.6 26.7 °23..7 2753 ©12622 27.6 “2974°%27.8 VGteomeee 
Maximum 23 28.0 22 27.81 23 2555: 131 28.8 30 2065) 65 2828 38 29.6 
Meaw Max, |:2120 27.0 20.6 26.8 °22.6°27.4 26.3 28.0 ° 28.2 28.2 30.9°28.4 9S2.08¢een 
Mean Min, (17.6 25.8 »18.3 26.2) 19.1 26.2 21.4 26.6 23.8.27.0 2735°27.1 2enomeret 
Minimum 16. * 24% TS ee Sige] ele 25a Ye0l, eye eo ames 26.4. 26° “26.7 266 Seana 
GUAYMAS, 
1957-1959 118.1 26.5 19.3 26.6 20.0 26.8 23.5 2750 25.9 27-4. 2957°27.2 " Senoueeee 
UQGO=1964 15.9''25.9 17.3 (26.0! 18.6 26.3 .22.0°26,6 24.8) 26.8 .28.9%27.0 > same 
1965 16,727.28 16,6 27.3 319.4 27.5 23.8 27.4 “26:2° 27: 4a 2829 (29. 3 7) oie 
1966 AP JOP2Ge Ge 17.17 20.6) 5 2Oeb 2b? 25,0 Neat 27.7 (27, Je ea -- = 
Mean 16.8 26.8 17.9 26.4% 19.3°26.6 22.9 26.9 25.6 27.1, 2921 27 Aseeeseee 
Maximum 20 29.6 (22 296-23. A29.9° 28> -28.1-° 30. (28.3633: «28. 2 eho 
Meam Max, 18.7 26.9 2195762669 “21.90 29.1 725.5. 27.4 .27.7: 27.69 31.927.6 eee eee 
Meam Min, }14.7 25.7 ~1620/26.0, 16.8 26.2 (20.0 26.4 -22.4: 26.6-..25..8-26.,6 ) BO eee 
Minimum 12. 24.6 13 25.3 4 25.7 19 °25.5° 19 26.2 24 26.2 eee 
PUERTO PENASCO, 
26.8° 17.8 27.0 20.5 27.2 23.7 27.1 . 26. 3-27.2 9-20. cee 
ine) 
ON 
° 
Co 
= 
Wn 
™“ 
1952-1955 | 14.9 
eee A ne ae Ree. ee 
1965 US OeOew 15.6 12669 aes mi 20.1. 26.9 23.9 27.2 25.1 27.2 29pm 
*Observations for the year are incomplete; extremes are for the months shown. 
