|
|
|
|
|
|
|
|
|
|
|
|
|
|
FT. SNELLING MN |
|
|
|
|
|
|
|
|
|
|
|
|
|
YEAR: 1881 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PARAMETER |
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
YEAR |
Average Monthly Temp (Fixed Time) |
4.9 |
14.1 |
27.3 |
42.7 |
64.1 |
66.8 |
72.3 |
72.8 |
58.8 |
47.1 |
27.6 |
26.3 |
43.7 |
Average of Daily 1400 Hour Obs (F) |
10.8 |
19.8 |
34.2 |
50.7 |
72.3 |
74.6 |
81.4 |
81.3 |
65.7 |
52.9 |
32.1 |
33.4 |
50.8 |
Average of daily 0700 Hour Obs (F) |
0.0 |
9.3 |
20.7 |
36.0 |
58.8 |
63.2 |
68.4 |
66.9 |
54.2 |
42.5 |
24.7 |
21.2 |
38.8 |
Extreme Maximum (Fixed Time) |
32 |
39 |
47 |
77 |
85 |
87 |
90 |
95 |
89 |
73 |
54 |
46 |
95 |
Extreme Minimum (Fixed Time) |
-24 |
-14 |
4 |
9 |
40 |
53 |
58 |
56 |
39 |
25 |
-2 |
-1 |
-24 |
Average Monthly Temp (Max/Min) |
-- |
-- |
-- |
43.5 |
63.9 |
66.5 |
72.4 |
73.6 |
59.6 |
47.8 |
28.5 |
26.5 |
-- |
Average Daily Maximum (F) |
-- |
-- |
-- |
54.4 |
75.0 |
76.5 |
84.0 |
84.2 |
68.8 |
56.0 |
36.0 |
36.2 |
-- |
Average Daily Minimum (F) |
-- |
-- |
-- |
32.5 |
52.8 |
56.6 |
60.8 |
63.0 |
50.3 |
39.7 |
21.1 |
16.8 |
-- |
True Monthly Maximum (F) |
-- |
-- |
-- |
79 |
87 |
88 |
92 |
96 |
91 |
75 |
59 |
52 |
96 |
True Monthly Minimum (F) |
-- |
-- |
-- |
15 |
33 |
47 |
47 |
51 |
33 |
22 |
-3 |
-2 |
-- |
Total Monthly Precipitation (In) |
-- |
-- |
-- |
0.60 |
6.39 |
3.73 |
1.64 |
4.36 |
10.54 |
3.32 |
1.34 |
-- |
-- |
Greatest Daily Precipitation (In) |
-- |
-- |
-- |
0.44 |
2.20 |
0.90 |
0.40 |
0.84 |
2.26 |
1.00 |
0.92 |
-- |
2.26 |
Monthly Mean Cloudiness |
5.6 |
5.2 |
5.2 |
4.8 |
5.1 |
4.9 |
3.8 |
4.3 |
5.6 |
5.5 |
5.4 |
4.4 |
5.0 |
Total Monthly Snowfall (In) |
-- |
-- |
-- |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
-- |
-- |
-- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ANNUAL CLIMATOLOGICAL SUMMARY |
|
|
|
|
|
|
|
|
|
|
|
|
|
FT. SNELLING MN |
|
|
|
|
|
|
|
|
|
|
|
|
|
YEAR: 1881 |
|
|
|
|
|
|
|
|
|
|
|
|
|
REMARKS --- |
|
|
|
|
|
|
|
|
|
|
|
|
|
Unless otherwise noted, all January-March 1881 data are from fixed time observations taken daily at the Ft. Snelling |
|
|
|
|
|
|
|
|
|
|
|
|
|
post hospital station at 0700, 1400 and 2100 hours local time. So far as can be determined, the station was |
|
|
|
|
|
|
|
|
|
|
|
|
|
not equipped with self-registering maximum-minimum thermometers during the first three months of 1881. |
|
|
|
|
|
|
|
|
|
|
|
|
|
In addition to the tri-daily fixed time readings, Ft. Snelling observers took readings from self-registering |
|
|
|
|
|
|
|
|
|
|
|
|
|
maximum-minimum thermometers, beginning 1 April 1881 and continuing through the remainder of the year. |
|
|
|
|
|
|
|
|
|
|
|
|
|
The April-December portion of the 1881 record, accordingly, includes averages and extremes taken BOTH from |
|
|
|
|
|
|
|
|
|
|
|
|
|
the fixed time record and the maximum-minimum record. Monthly averages derived from the fixed time record were |
|
|
|
|
|
|
|
|
|
|
|
|
|
calculated in the same manner as were corresponding averages for the years 1877-1880. None of the foregoing |
|
|
|
|
|
|
|
|
|
|
|
|
|
average temperatures have been adjusted to the standard NWS 2400-2400 hour observation day. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Monthly mean cloudiness values are the averages based on visual sky cover observations taken daily at 0700, |
|
|
|
|
|
|
|
|
|
|
|
|
|
1400 and 2100 hours local time. A cloudiness value of zero (0) indicates a totally clear sky: a value of five indicates |
|
|
|
|
|
|
|
|
|
|
|
|
|
50 percent cloud cover, etc. Greatest daily precipitation recorded on 29 September. Lowest 1881 temperature |
|
|
|
|
|
|
|
|
|
|
|
|
|
recorded at 0700 hours on 9 January. January-March and December 1881 precipitation record is missing/incomplete. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Highest 1881 temperature recorded on 11 August. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|