December 5th, fall of rain 1-16th of an inch.
{lviii} Meteorological Register {lix} for the Month of JANUARY, 1820
| Day of Month | MORNING | MID-DAY | EVENING | Mean Temp. | Mean Temp. at Germantown | REMARKS | BAROMETER | MODIFICATIONS AND COURSES OF CLOUDS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Morning | Mid-Day | Evening | ||||||||||||||||
| Temperature | Wind | Temperature | Wind | Temperature | Wind | Morning | Noon | Evening | Clouds | Courses | Clouds | Courses | Clouds | Courses | ||||
| 1 | 16 | N.W. | 22 | N.W. | 20 | N.W. | 19 | 12 | Little snow fell to-day | 28.58 | 28.77 | 28.87 | Ns. | — | Ns. | — | Cs. | — |
| 2 | 13 | N.W. | 24 | N.W. | 18 | N.W. | 18 | 21 | 29.00 | 28.91 | 29.00 | Ns, | — | C, | N.W. | Cs, | — | |
| 3 | 4 | S.E. | 35 | S.E. | 28 | N.W. | 22 | — | Mild and fair | 28.98 | 28.76 | 28.87 | C, | N.W. | C, | N.W. | Fair | — |
| 4 | 13 | N.E. | 31 | N.W. | 21 | N.W. | 21 | 26 | 29.04 | 28.97 | 29.03 | Cs. | — | Cs. | — | C, | W. | |
| 5 | 0 | S.E. | 24 | S.E. | 19 | S.E. | 14 | 25 | Fresh winds | 29.19 | 29.02 | 29.04 | C, | N.W. | Fair | — | Fair | — |
| 6 | 20 | S.E. | 32 | S.E. | 28 | S.E. | 26 | 18 | A little snow at evening | 28.88 | 28.74 | 28.66 | Cs. | N. | Ns. | — | Ns. | — |
| 7 | 16 | N.W. | 40 | Calm | 35 | N.W. | 30 | 23 | Thawing | 28.60 | 28.44 | 28.57 | Cs, | — | C, | — | Cs, | — |
| 8 | 24 | N.W. | 32 | N.N.E. | 27 | N.W. | 27 | 35 | Snow in flakes at evening | 28.80 | 28.74 | 28.85 | Cs. | — | Ns. | N.E. | Ns. | — |
| 9 | 7 | N.N.W. | 14 | N.W. | 14 | N.W. | 11 | 35 | Windy. Snow ½ inch last night | 29.14 | 29.04 | 29.10 | Ns. | — | Ns. | — | Ns. | — |
| 10 | -8 | N.W. | 3 | N.W. | -3 | N.W. | -3 | 27 | Windy. Slight snow last night | 29.15 | 29.12 | 29.21 | Fair | — | Fair | — | Fair | — |
| 11 | -16 | N.W. | -2 | N.W. | -3 | N.W. | -7 | 29 | Moderate wind | 29.48 | 29.27 | 29.21 | Fair | — | Fair | — | Fair | — |
| 12 | 7 | S.E. | 32 | S.E. | 36 | N.W. | 25 | 22 | Strong wind, A.M. Little rain and snow, P.M. | 28.63 | 28.58 | 28.62 | Ns. | W.N.W. | Ns. | — | Ns. | — |
| 13 | 10 | N.W. | 17 | N.W. | 13 | N.W. | 13 | 17 | Snow, P.M. | 28.77 | 28.75 | 28.78 | Ns | N.W. | Ns. | — | Ns. | — |
| 14 | 2 | N.W. | 21 | N.W. | -1 | N.W. | 8 | 26 | Fresh wd. Snow 6 inches last night | 28.97 | 28.97 | 29.13 | Ns. | — | Ns. | — | C, | — |
| 15 | -14 | N.W. | -5 | N. | -5 | N. | -8 | 31 | Fresh wind | 29.40 | 29.40 | 29.40 | Ns. | — | Ns. | — | Ns. | — |
| 16 | -9 | N.W. | 4 | N.W. | 1 | N.W. | -1 | 25 | 29.22 | 28.98 | 28.96 | Ns. | — | Cml. | — | — | — | |
| 17 | -9 | S.E. | 11 | S.E. | 11 | Sy. | -4 | 35 | Snow ¼ inch at night | 28.82 | 28.76 | 28.86 | Cs, | — | Ns. | — | Ns. | — |
| 18 | -13 | N.W. | 9 | N.W. | 1 | N.W. | -1 | 25 | Light wind | 29.06 | 28.93 | 28.90 | Fair | — | Fair | — | Hazy | — |
| 19 | 1 | N.N.E. | 9½ | N.E. | 2 | N.W. | 4 | 27 | Snow 1 inch last night | 28.83 | 28.83 | 28.86 | Ns. | — | Ns. | — | Cs. | — |
| 20 | -5 | S.E. | 9 | S.E. | 11 | S.E. | -5 | 22 | Windy. Snow storm from 9 A.M. | 28.70 | 28.59 | 28.60 | Ns. | — | Ns. | — | Ns. | — |
| 21 | 10 | N.W. | 13 | N.W. | 1 | N.W. | 8 | 25 | Snow till 3 P.M. Snow 5 inches on 19th & 20th | 28.85 | 28.99 | 29.15 | Ns. | — | Ns. | — | Cml, | — |
| 22 | -15 | N.W. | 11 | N.W. | -8 | N.W. | -4 | 33 | Light winds | 29.33 | 29.27 | 29.26 | Fair | — | Fair | — | Fair | — |
| 23 | -9 | S.E. | 11 | S.E. | 12 | S.E. | 5 | 29 | Windy. Thermom. at 17°, P.M. | 29.05 | 28.95 | 28.96 | Cs, | W.N.W. | Cml, | — | Cs, | W.N.W. |
| 24 | 19 | N.W. | 34 | N.W. | 19 | N.W. | 20 | 20 | 29.19 | 29.15 | 29.19 | Cs. | — | Cs. | — | Cs. | W. | |
| 25 | -5 | S.E. | 23 | S.E. | 23 | S.E. | 13 | 30 | Windy | 29.08 | 28.95 | 28.84 | Ns. | S.W. | Cml, | S.S.W. | Cml, | S.S.W. |
| 26 | 26 | N.W. | 33 | N.W. | 21 | N.W. | 26 | 23 | Snow last night 4½ inches | 28.42 | 28.42 | 28.61 | Ns. | — | Cs. | — | Cs. | — |
| 27 | 19 | N.W. | 23 | N.W. | 4 | N.W. | 15 | 32 | Light breezes. Snow | 28.78 | 28.85 | 28.96 | Ns. | — | Ns. | — | Cs, | — |
| 28 | -15 | S.E. | 9 | S.E. | 5 | S.E. | 0 | 36 | Windy | 28.90 | 28.77 | 28.80 | C, | S.W. | C, | S.W. | Cs, | — |
| 29 | 6 | S.E. | 12 | N.W. | -3 | N.W. | 5 | 21 | Windy. A lit. snow, A.M. | 28.75 | 28.71 | 28.95 | Cml, | S.E. | Cs, | N. | Cs, | — |
| 30 | -26 | S.E. | -2 | S.E. | 0 | N.W. | -9 | 32 | 29.07 | 28.95 | 28.93 | C, | — | C, | — | Cs, | — | |
| 31 | -2 | N.W. | -3 | N.W. | -11 | N.W. | -5 | 30 | Windy, A.M. | 29.30 | 29.38 | 29.41 | Cs, | W.N.W. | Cs. | — | Cs. | — |
Remarkable Phenomena.—January 18th. This morning a parhelion appeared around the sun as he rose, consisting of a mock sun, or image of the sun on each side of him in a horizontal line. From the image northward of the sun there issued a cone of light, the vertex of which was directed from the sun. There was no halo, and the mock suns were not well defined by any outline, though the morning was fair, and the sun shone bright. At eight o'clock the distance of the mock suns from each other, measured by a sextant, was found to be 44° 40´. At half past eight they had assumed the appearance of extended planes perpendicular to the horizon, and about 5° or 6° in length; breadth a little more than sun's diameter; soon after which they disappeared. N. B. See Remarkable Phenomena continued, on page lxviii [our page [288]], at the conclusion of the Meteorological Register.
{xlviii} Meteorological Register {lxi} for the Month of FEBRUARY, 1820
| Day of Month | MORNING | MID-DAY | EVENING | Mean Temp. | Mean Temp. at Germantown | REMARKS | BAROMETER | MODIFICATIONS AND COURSES OF CLOUDS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Morning | Mid-Day | Evening | ||||||||||||||||
| Temperature | Wind | Temperature | Wind | Temperature | Wind | Morning | Noon | Evening | Clouds | Courses | Clouds | Courses | Clouds | Courses | ||||
| 1 | -12 | S.E. | -3 | S.E. | -3 | S.E. | -6 | 8 | A little snow, A.M. and windy | 29.06 | 28.87 | 28.81 | Ns. | — | Cs, | — | Cs. | — |
| 2 | 0 | N.W. | 7 | N.W. | -2 | N.W. | 2 | 21 | Fresh winds | 28.80 | 28.77 | 28.88 | Cs. | — | Cml, | — | Fair | — |
| 3 | -5 | S.E. | 13 | S.E. | 20 | S.E. | 9 | 33 | Windy | 28.85 | 28.69 | 28.67 | C, | N.W. | Cs, | — | Cs, | — |
| 4 | 4 | S.E. | 30 | S.E. | 33 | S.E. | 22 | 28 | Windy. Thermom. 34°, P.M. Snow melting | 28.84 | 28.65 | 28.60 | C, | N.W. | C, | W.N.W. | C, | W.N.W. |
| 5 | 39 | S.E. | 45 | S.E. | 19 | N.W. | 34 | 24 | Thawing at noon | 28.32 | 28.22 | 28.72 | Cs, | W. | Cs, | — | Cml, | — |
| 6 | 7 | S.E. | 35 | S.E. | 29 | S.E. | 23 | 40 | Fresh wind. Thawing | 29.00 | 28.87 | 28.72 | Cs, | — | Cs. | — | Cml, | W.S.W. |
| 7 | 4 | S.E. | 33 | S.E. | 34 | S.E. | 23 | 32 | Damp & foggy. Light winds. | 28.95 | 28.76 | 28.83 | C, | — | Fair | — | C, | — |
| 8 | 21 | N.W. | 33 | N.E. | 31 | N.W. | 28 | 35 | Damp and foggy. Icy particles falling all day | 28.75 | 28.60 | 28.69 | Ns. S. | — | Ns. | — | Ns. | — |
| 9 | 23 | S.E. | 41 | S.E. | 31 | S.E. | 31 | 31 | Snow and ice melting | 28.86 | 28.83 | 28.79 | Ns. | — | Ns. | — | Ns. | — |
| 10 | 12 | S.E. | 31 | S.E. | 38 | S.E. | 27 | 22 | Snow and ice melting | 28.84 | 28.58 | 28.66 | C, | — | C, | N.W. | Fair | — |
| 11 | 31 | S.E. | 44 | W.N.W. | 34 | N.N.W. | 36 | 31 | Snow and ice melting | 28.60 | 28.33 | 28.50 | C, | — | C, | — | C, | — |
| 12 | 26 | N.W. | 35 | S.E. | 31 | S.E. | 30 | 33 | Little rain and snow | 28.80 | 28.50 | 28.60 | Cs. | — | Fair | — | C, | — |
| 13 | 33 | S.E. | 46 | S.E. | S.E. | 49 | Rain & hail last night. Windy and warm to-day | 28.33 | 28.16 | Cs, | — | C, | — | C, | — | |||
| 14 | 34 | N.W. | 35 | N.W. | 37 | N.W. | 35 | 42 | Violent wind all day with a little snow | 28.24 | 28.26 | 28.33 | Cs, | — | Ns. | — | Ns. | — |
| 15 | 33 | S.E. | 39 | S.E. | 44 | S.E. | 38 | 51 | Snow chiefly melted A little snow fell | 28.24 | 28.00 | 27.80 | Cs, Cml, | SSW, SSE | Ns. | S.S.E. | Cm, | — |
| 16 | 32 | N.W. | 33 | N.W. | 29 | N.W. | 34 | 41 | Violent wind last night & to-day, with some snow | 27.96 | 28.21 | 28.43 | Ns. | N.N.W. | Ns. | — | Cs, | — |
| 17 | 20 | N.W. | 34 | S.E. | 31 | S.E. | 28 | 49 | Moderate winds | 28.76 | 28.55 | 28.66 | Fair | — | C, | — | C, | — |
| 18 | 27 | S.E. | 30 | S.E. | 30 | S.E. | 29 | 38 | Windy | 28.86 | 28.73 | 28.55 | Cs. | N.N.W. | Cs, | — | Cs. | — |
| 19 | 26 | N.W. | 23 | N.W. | 25 | N.W. | 24 | 29 | Violent wind last nt. | 28.44 | 28.69 | 28.89 | Ns. | — | Cml, | N.N.W. | C, | — |
| 20 | 20 | N.W. | 34 | N.W. | 30 | N.W. | 28 | 37 | Moderate wind | 28.96 | 28.86 | 28.87 | Fair | — | Fair | — | Fair | — |
| 21 | 33 | S.E. | 51 | S.E. | 47 | S.E. | 43 | 32 | Thermometer at 55° Ice rapidly melting | 28.74 | 28.50 | 28.42 | Fair | — | Fair | — | Fair | — |
| 22 | 35 | N.W. | 45 | S.E. | 37 | S.E. | 39 | 39 | Fresh brs. Ice melting | 28.53 | 28.47 | 28.49 | C, | — | C, | N.W. | C, | N.W. |
| 23 | 33 | N.W. | 47 | N.W. | 38 | N.W. | 39 | 44 | Windy and squally Geese flying north | 28.16 | 28.19 | 28.40 | Cs, | — | Cms, | — | Fair | — |
| 24 | 30 | S.E. | 54 | S.E. | 39 | N.W. | 41 | 53 | Light breezes. Geese passing northwardly | 28.30 | 28.07 | 28.08 | Cs. | W.N.W. | Cs. | W.N.W. | C, Cs, | — |
| 25 | 33 | N.W. | 44 | N.W. | 35 | N.W. | 37 | 45 | Light breezes. Ducks passing down river | 28.11 | 27.96 | 28.05 | Cs, | — | Cs, Cml, | S.W., N.W. | Ns, | — |
| 26 | 25 | N.W. | 39 | N.W. | 35 | N.W. | 33 | 48 | Snow last night ⅛th inch | 28.21 | 28.25 | 28.38 | Ns, | N.W. | Cs, Cml, | W., NNW. | Cs, | — |
| 27 | 21 | N.W. | 44 | N.W. | 40 | N.W. | 35 | 51 | Frost last night | 28.67 | 28.58 | 28.63 | C, | — | Cs, | — | C, | — |
| 28 | 34 | Calm | 57 | S.E. | 49 | W.N.W. | 46 | 41 | Frost last night | 28.87 | 28.73 | 28.73 | Fair | — | C, | — | Fair | — |
| 29 | 22 | N.W. | 60 | S.E. | 55 | W.N.W. | 45 | 32 | Frost abundant. River begins to open | 28.90 | 28.65 | 28.57 | Fair | — | Fair | — | Fair | — |
Remarkable Phenomena.—15th, Lightning in N.E. this evening between 7 and 8 o'clock—clear sky—fresh S.E. wind. During the violent wind to-day the rain gauge was blown from its station and broken.