1 
METEOROLOGICAL OBSERVATIONS. 
711 
1827 
l^ec. 
19 
31 
1828 
1 
31 
l^eb. 
1 
4 
Situation. 
Latitude. 
North. 
liong. 
West. 
0 0 
Port Sa n Bias, 
Mexico. 
^ar. 
10 
u 
12 
13 
19 
20 
21 
22 
23 
San 
Coast 
San 
Bias. 
20 
to 
15 
m 
15 
to 
10 
m 
10 
5 
7 i 
5 
to 
0 
of 
Bias. 
108 
to 
100 
104 
Temperature of the Air. 
Maxi- 
mum. 
0 
j-79 
1 80 
Mini- 
mum. 
0 
68 
75 
77 
82 
81 
SOI 
82 
100 
to 
98 
99 
98 
98 
98 
to 
100 
2J- 
South. 
0 
to 
2 \ 
5 
10 
74 
99 
83 
89 
83 
83 
83 
67 
Mean. 
0 
73.02 
72.83 
68 
7H 
7o 
764 
7U 
78 
79 
784 
80 
80 
89 78 
82 
83 
80 
80 
83 
80 
82 
83 
81 
81 
791 
80' 
78 
78 
83 
78 
72,15 
74.04 
77.87 
78.09 
77-18 
(U 0) 
S'a 
(u g 
^ CC rt 
cj u 
55 .£3 
O'tS 
Humidity of the Atmosphere. 
0 
74.63 
73.69 
72.40 
76.79 
80.41 
82.87 
81.29 
81.41 
81.54 
8150 
80.79 
81.25 
77.25 
81.66 
81.00 
80.33 
Dew 
Point. 
0 
73.8 
j :: 
Qhi 
= g . 
ti) * .3 
e 
0 
2.3 
72.0 
80.06 
82.83 
83.41 
83 83 
83.08 
82.50 
83.13 
81, .33 
81.16 
81.02 
81.33 
81. .50 
79.62 
79.75 
80.55 
100 
to 
102 
101 
102 
106 
104 
84 
80 
84 
80 
80 
77 
77 
77, V 
84 77 
804 
80' 
79 
78 
804 i 78 
81.83 
78.95 
78.83 
79.12 
79.68 
79.58 
79.04 
79.31 
8124 
82.41 
83.08 
80.41 
80.83 
72.0 
72.2 
76.0 
78.2 
74.6 
78.0 
76.0 
77-0 
77.0 
79.0 
77-6 
2.9 
5.0 
4.5 
8.5 
7-0 
3.7 
59 
5.5 
8.0 
6.0’ 
40 
78.0 
810 
79.5 
81.68 
83.58 
81.33 
80.66 
80 16 
81.43 
80.16 
79,41 
79.78 
80.0 
78.0 
78.7 
79.0 
5.9 
3.5 
1.5 
2.5 
3.0 
50 
1.7 
3.0 
to 3 * 
0.2 ti 
W o >, 
.9317 
.9093 
-3 p- 
.875 
.8552 
.8644 
.7520 
.8055 
.8745 
.8241 
.8354 
.7813 
!83]3 
.8847 
.8332 
.819 
.713 
.822 
.826 
.936 
1.000 
.896 
grams. 
2.6278 
7.7300 
9.5557 
.997 
.930 
.966 
1.028 
.984 
.8745 
.9406 
.9075 
78 9 
80.0 
80.0 
79.6 
79.6 
770 
77.5 
77.2 
3.2 
3.5 
1.0 
'2.0 
2.2 
3.5 
4.5 
4.0 
,9122 
.8482 
.9698 
9121 
.997 
1.093 
1.045 
1.060 
10.4437 
11.9670 
11.2945 
11.2690 
.997 |10,6020 
1.020 il 1.0000 
1.028 10.9600 
.9106 1020 10.9577 
.9122 
.9698 
!9405 
.9408 
.8978 
.8560 
8769 
1060 11.2690 
1.060 ill. 3100 
1.028 ^10.9800 
1.049 
.966 
.921 
.943 
11.1863 
10,32.50 
98530 
10.0890 
Clouds. 
Winds and Weather. 
> Clear str. 
Thick fog 
^ N.N.w. and N.N.E. light winds 
1 and fine, mod. and thick. 
3 Cum. cir. 
str. 
^ w.N.w. and n.w. light winds, 
^ moderate and rain. 
Lofty 
' cir. cum. 
& cir. str. 
f w.N.w. and n.n.w. light airs 
C and fine. 
' Cir. str. & 
cum. str. 
Cir. cum. 
Cir. str. 
w.N.w. moderate and fine. 
Westerly, do. do. 
Do. do. do. 
N.N.E. and w. do. do. 
Cir. and 
cir. str. 
w.s.w. light winds and fine. 
N.w. by N. calm. 
s.s.E. light airs and fine. 
K. by N. moderate and fine. 
E.N.E. do. do. 
Cir. 
Cum. 
N.B. by E. moderate and fine. 
E.N.E. light winds. 
Cir. str. 
cloudy. 
Cir. 
v.B. light winds. 
.E. liglit winds. 
Easterly, cloudy. 
Oo. moderate and fine. 
Cir. str. s 
nimb. 5 
Cum. j 
Str. s 
E. light airs and fine. j 
Variable, heavy rain. j 
Easterly, fr. breezes & squalls. I 
.E, by s. mod occasional squalls.| 
Cir. s 
Str. 1 
.E. fresh breezes and fine. | 
..s.B. do. do. 1 
