ANNUAL CLIMATOLOGICAL SUMMARY

 

 

 

 

 

 

 

 

 

 

 

 

 

FT. SNELLING MN

 

 

 

 

 

 

 

 

 

 

 

 

 

YEAR: 1867

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PARAMETER

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

YEAR

Average Monthly Temperature (F)

--

--

--

42.2

50.2

70.4

73.3

73.9

62.7

49.7

35.6

15.7

--

Average of Daily 0700 Hour Obs (F)

--

--

--

38.8

47.1

66.7

68.7

68.7

57.1

42.1

30.0

11.4

--

Average of Daily 1400 Hour Obs (F)

--

--

--

49.6

55.9

76.9

80.1

82.2

68.9

57.5

42.3

21.0

--

Average of daily 2100 Hour Obs (F)

--

--

--

40.1

48.8

69.1

72.2

72.3

62.4

49.6

35.0

15.2

--

Extreme Monthly Maximum (Observd)

--

--

--

65

74

89

90

93

85

79

66

36

93

Extreme Monthly Minimum (Observd)

--

--

--

18

32

51

58

54

42

27

-6

-13

--

Total Monthly Precipitation (In)

--

--

--

1.59

2.42

7.72

3.22

2.16

5.39

0.76

--

0.15

--

Greatest Daily Precipitation (In)

--

--

--

0.56

0.88

1.75

0.80

1.70

2.50

0.35

0.20

0.05

--

Monthly Mean Force of Wind

--

--

--

--

2.6

2.6

2.0

1.6

2.1

2.5

0.8

2.6

--

Total Monthly Snowfall (In)

--

--

--

--

0.0

0.0

0.0

0.0

0.0

--

--

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANNUAL CLIMATOLOGICAL SUMMARY

 

 

 

 

 

 

 

 

 

 

 

 

 

FT. SNELLING MN

 

 

 

 

 

 

 

 

 

 

 

 

 

YEAR: 1867

 

 

 

 

 

 

 

 

 

 

 

 

 

REMARKS ---

 

 

 

 

 

 

 

 

 

 

 

 

 

Unless otherwise noted, all 1867 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 at any time during 1867.

 

 

 

 

 

 

 

 

 

 

 

 

 

Average monthly temperatures were calculated by taking the sum of the daily 0700 hour and 1400 hour readings

 

 

 

 

 

 

 

 

 

 

 

 

 

plus twice the sum of the 2100 hour readings and dividing the resulting sum by four. Ft. Snelling station re-established

 

 

 

 

 

 

 

 

 

 

 

 

 

on 1 April 1867 (Station previously closed when fort was temporarily decommissioned in April 1858: extant evidence

 

 

 

 

 

 

 

 

 

 

 

 

 

indicates, however, that unofficial records were maintained at the fort site during some portion of the intervening period.

 

 

 

 

 

 

 

 

 

 

 

 

 

So far as can be determined, any such records have been lost / destroyed).

 

 

 

 

 

 

 

 

 

 

 

 

 

Extreme maxima and extreme minima are the highest and lowest values OBSERVED at the Ft. Snelling station

 

 

 

 

 

 

 

 

 

 

 

 

 

during the month indicated. Monthly average temperatures have NOT been adjusted to the NWS 2400-2400 hour

 

 

 

 

 

 

 

 

 

 

 

 

 

observation day. Highest 1867 observed temperature was recorded at 1400 hours on 7 August.

 

 

 

 

 

 

 

 

 

 

 

 

 

Monthly mean force of wind values are the averages of visual air movement observations taken daily at 0700,

 

 

 

 

 

 

 

 

 

 

 

 

 

1400 and 2100 hours local time. So far as can be determined, wind force values were obtained from the Beaufort scale

 

 

 

 

 

 

 

 

 

 

 

 

 

(or a modified Beaufort scale adapted for Army use). Greatest daily precipitation recorded on 15 September.

 

 

 

 

 

 

 

 

 

 

 

 

 

Force 8 winds at 1400 hours on 1 May. 1.75 inches of rain on 2 June. "Slight frost" noted on 27-28 August.

 

 

 

 

 

 

 

 

 

 

 

 

 

"Snowstorm" on 29 October. 60 F at 1400 hours on 22 November.

 

 

 

 

 

 

 

 

 

 

 

 

 

When they appear in the foregoing tables, ITALICS indicate estimated / derived values.