464 
PARTIAL RESULTS OF EXPLORATION, 
Meteorological Observvations at stations on the route —Continued. 
Ill —Continued. 
Mean temperatures. 
Extreme temperatures. 
ate. 
Sunrise. 
9 a. m. 
3 p. m. 
9 p. m. 
Monthly 
mean. 
Upper. 
Day and hour. 
Lower. 
Day and hour 
Remarks. 
1854. 
o 
o 
o 
o 
o 
O 
o 
February.. 
34.17 
39. 82 
48.17 
36. 42 
43 
60 
23d, 3 p. m. 
22 
1 st, sunrise. 
There were 7. 57 inches of rain. 
One-eiglith of au inch of snow at 
sunrise on the 1st. Snow at 
intervals on the 10th. One- 
quarter inch of snow at sunrise, 
and snow at intervals, on the 
11th. Snow on the 14th. Hard 
frost four times; hoar frost 
twice. 
March .... 
35. 58 
43. 58 
54. 22 
40. 09 
46. 08 
67 
24th, 3 p. m. 
28 
31st, sunrise. 
There were 2. 89 inches of rain. 
Light showers of snow at inter¬ 
vals on the 10th. Showers of 
hail and snow on the 29th. Two 
hoar frosts and one hard frost 
during the month. 
IV. —From register kept by Mr. Geo. W. Stevens, at Olympia, Washington Territory; latitude 47° 02' 50"; approximate 
longitude 122° 53' W. Those results, in this table, which were obtained at Fort Steilacoom, have been copied, by permission, 
from a register kept by Dr. Geo. Suckley, and Dr. Richard Potts, U. S. A., for the medical department U. S. A. 
Date. 
Mean tempera¬ 
tures. 
Extreme temperatures. 
Mean quanti¬ 
ty of clouds. 
Mean course and velocity of 
clouds. 
Mean direction and force of 
wind. 
§ 
< 
2 P. M. 
05 
Monthly mean. 
Upper. 
Day and hour. 
Lower. 
Day and hour. 
7 A. M. 
s 
oli 
© i 
9 P. M. 
7 A. M. 
2. P. M. 
f; 
9 P.M. 
7 A. M. 
2 P. M. 
9 P. M. 
o 
o 
o 
o 
0 
0 
April, 1854. 
44.9 
57.1 
49.6 
50.5 
72 
15th, 2 p. m. 
34.5 
1st, 2 p. m.. 
8.3 
6.3 
4.7 
SW., 1- 
SW., 1.6 
SW., .5 
SSW., .7 
W., 1.7 
SW., .3 
FORT STEILA- 
COOM. 
56.5] 
84 
36 
61.4 
86 
10th, 3 p. m. 
44 
6tii, sunrise. 
OLYMPIA.* 
July, 1854 . 
55 
75.9 
64 
65 
89.4 
25th, 2 p. m. 
45 
2d, 7 a.m... 
2.2 
2.5 
0.4 
NW., .4 
WNW.,.5 
W., .1 
MW., 1.1 
NNW.,2 
WNW., .9 
August, 1854.... 
55.5 
74.2 
65.5 
65.1 
86.5 
14th & 15th, 
48 
22d, 7 a. m.. 
5 6 
4.4 
3 
SVVW., .8 
SW., .8 
. 
SE., 1 
NW., 2 
SW., .8 
2 p. m. 
September, 1854 
53.1 
69 
56.9 
59.7 
84.5 
20th, 2 p. in. 
44.8 
30th, 7 a. m. 
7.5 
5 
3.5 
SW., .9 
W. .9 
E., .07 
S., 1 
NW., 1.7 
SW., .6 
October, 1854... 
45.3 
60.2 
48.7 
51.4 
73 
4th, 2 p.m.. 
33 
7th, 7 a. m.. 
6.6 
5.7 
5 
SWW., .8 
SW. 1.4 
SWW.... 
SSE., .7 
NNW.,1.6 
S., .7 
* Registers for Olympia lor May and June, 1854, not received. 
REMARKS. 
•April, 1854.— ££ No rain-gauge. The whole month might be called a continuous rain-storm, though there were three or four pleasant evenings. 
Fair weather was always of very brief duration. 55 ££ There was a pretty heavy frost on the night of the 7th ; rain and hail together for 15 minutes on 
the 11th; ice, f-incli thick, formed on the night of the 20th; frost on the nights of the 21st and 25th. 55 At Fort Steilacoom, latitude 47° 10' 57" N., 
longitude 122° 33' W., the quantity of rain during the month was 12.5 inches. 
May and June , 1854.—Quantity of rain 0.88-inch. Light ££ hoar frost 55 and light frost during May. Quantity of rain in June 5.68 inches. 
July , 1854.— ££ Not a drop of rain during the whole month, except a slight sprinkle at 4£ p. m. on the 15tli. At Fort Steilacoom there was 0.35 inch 
of rain on the 16th, and on the same day there was ££ hoar frost. 55 
•August, 1854.—At Fort Steilacoom there were 3.93 inches of rain, and there were two heavy and two light frosts, during the month. 
September , 1854.—At Fort Steilacoom there were 3.46 inches of rain, and there was frost four times, during the month. 
October , 1854.—There were 3.14 inches of rain. Five frosts during the month. 
