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[Lewis and Clark] 
[Weather, August 1805]  [1]
 

        

Day of
the
month
[August]
State of
the Ther-
mometer
at Sun symbol rise

Weather
at
Sun symbol rise

Wind
at
Sun symbol rise
State of
the Ther-
mometer
at 4 P.M.

Weather
at
4 P.M.

Wind
at
4 P.M.
State of the River
raised             Inches
or                     and
fallen    Feet    parts
1st
54 a
f
S W
91 a
f
S. W.
f                      ½
2nd
48 a
f
N. W.
81 a
f
N. W.
f                      ½
3rd
50 a
f
N. E.
86 a
f
N. E.
f                      ½
4th
48 a
f
S
92 a
f
S
f                      ½
5th
49 a
f
S. E.
79 a
f
S E
f                      ¼
6th
52 a
f
S. W.
71 a
c
S W
 
7th
54 a
c. a. r
S. W.
80 a
c
S. W.
 
8th
54 a
f. a. r
S W.
82 a
c a f
S W
 
9th
58 a
f
N. E.
78 a
c
S. W.
 
10th
60 a
C. a. r. f
& L
S W
68 a
T L & r
S W
 
11th
58 a
c. a. r. & h
N E
70 a
f
S W.
 
12th
58 a
f a r & h
W.
72 a
f. a. r
a h
N W
 
13th
52 a
c. a. f.
N. W.
70 a
f a r
N W
 
14th
51 a
f. a. r
N W.
76 a
f
N W
 
15th
      43 a  [2]
f
S E
74 a
f
S W
 
16th
48 a
f
S W.
70 a
f
S W.
 
17th
42 a
f
N. E.
76 a
f
S W
 
18th
45 a
C
S. W.
78 a
r
S W.
 
19th
30 a
f. a. r
S W
71 a
f. a. r
S W
 
20th
32 a
     f. a. r.  [3]
S W.
74 a
f
S W.
 
21st
19 a
f
S E
78 a
f
E
 
22nd
22 a
f
E.
70 a
f.
E.
 
23rd
35 a
f
E.
72 a
f
S E
 
24th
40 a
f
S. E.
76 a
f. a. r
S E
 
25th
32 a
f a r
S. E
65 a
C
S E
 
26th
31 a
f
S. E.
45 a
f
S. E
 
27th
32 a
f
S E
56 a
f
S E
 
28th
35 a
f
S W.
66 a
f
S W.
 
29th
32 a
f
S W.
68 a
f
S W
 
30th
34 a
C
N E
59 a
C
N E
 
31st
38 a
C. a. r
N E
58 a
c a r & h
N. E.
 

 

        

[Remarks]  [4]

[August] 1st Left the party and proceeded on a head
  6th Rejoin the party at 11 A M
  7th Thunder shower last evening from the N W.  [5] The river
which we are now ascending is so inconsiderable and the
curant So much on a Stand that I relinguished paying
further attention to it's State.
  8th a thunder Shower last evening.
  9th Encamped below the Forks Jeffersons River    Set out on
a party of discovery
  10th rain Commenced at 6 P. M and continued Showery
through out the night. Musqueters bad.
  11th heavy Dew last evening    killed a long tailed grouse.
  12th Saw a Snake Indian in Snake Indian Cove at 1 OC. P.M.  [6]
  13th very cold last night.    passed the dividing ridge to the
waters of Columbia river
  14th met with the Snake Indians, visit their camp  [7]
  15th remarkably cold this morning
  16th Capt Lewis Join with the Snake Indians at the forks  [8]
  18th Capt. Clark sets out with the Indians and 11 men
  19th ice on Standing water ⅛ of an inch thick.
  20th hard frost last night.  [9]
  21st ice ½ an inch thick on standing water.  [10] Most astonish-
ing difference between the hight of the Murcury at Sun symbol
rise and at 4 P. M. today    there was 59° and this in the
Space of 8 hours, yet we experience this wonderfull
transicion without feeling it near so Sensibly as I should
have expected.
  22nd Snow yet appears on the summits of the mountains.
the Indians arrive at 12 OC
  23rd white frost this morning
  24th Set out with the Indians and pack horses for the Colum-
bia river
  25th white frost this morning  [11]
  26th hard white frost and some ice on standing water this
morning    arrived with baggage and party on the Co-
lumbia river at 5 P. M.
  27th hard frost white this morning.  [12]
  29th Capt. Clalark joins me at the upper Indian village  [13]
  30th Set out with the party by land at 2 P. M.  [14]




 

1. Lewis has weather data for this month in Codex Fe and Codex P; Clark's is in Codex I. This table follows Codex Fe. (Return to text.)

 

2. Clark has "52 a." (Return to text.)

 

3. Clark has only "f." (Return to text.)

 

4. Lewis (Codices Fe and P) and Clark (Codex I) both have extensive marginal remarks for this month, many of which do not refer to the weather, but to the movements of the two captains and their respective parties. Some of the remarks in Lewis's journals appear to be in Clark's handwriting. Clark's substantive differences with Lewis's remarks are noted. (Return to text.)

 

5. The remainder of his entry is from a separate remark in Codices Fe and P. (Return to text.)

 

6. This actually occurred on August 11, as Clark notes in his weather remarks in Codex I. Even there a line points the remark to August 12. (Return to text.)

 

7. Clark in Codex I says, "Capt Lewis arrived at the Snake Indian camp on C[olumbia]." A line points the remark of August 13 to August 14. (Return to text.)

 

8. Clark's remark in Codex I. (Return to text.)

 

9. Clark adds, "I arrive at the Snake Indian village on the waters of Columbia River." (Return to text.)

 

10. The remainder of this entry is from a separate remark in Codices Fe and P. (Return to text.)

 

11. Clark writes, "I proceeded down the river 70 miles & Set out on my return." (Return to text.)

 

12. Clark says simply, "on the Columbian waters." (Return to text.)

 

13. Clark's version is, "I rejoin the party at the Snake Indian village & purchase horses." (Return to text.)

 

14. Clark has, "Set out with the party from Snake Indian village." (Return to text.)












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