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Meteorology of Jacksonville

The Semi-Tropical

1877

Table showing daily and monthly means of barometer and thermometer, mean daily humidity, velocity and prevailing direction of wind, number of rainy and cloudy days, amount of rainfall, etc., at Jacksonville, Fla., for the month of May, 1877. Observations made by Fred. Z. Gosewisch, Observer, Signal Service, United States Army.

Day of Month
Telegraphic Observations
Local Observations
Prevailing Direction of Wind
Thermometer
Mean daily Barometer
Mean Daily Thermometer
Mean Daily Humidity
Rainfall, in Inches
A.M.
P.M.
Midnight
1 62 71 55 30.027 62.0 37.7 ... NW
2 62 76 61 30.062 66.5 39.3 ... NW
3 63 81 67 30.004 70.7 44.7 ... SW
4 71 80 70 29.869 74.2 57.7 .01 S
5 74 87 74 29.797 77.2 64.3 .14 SW
6 71 76 69 29.870 74.7 68.7 .43 SW
7 69 78 70 29.740 72.2 79.3 .35 S
8 70 77 64 29.801 69.2 46.0 ... W
9 62 76 63 29.954 66.7 55.0 ... NW
10 66 76 67 30.065 70.5 53.0 ... E
11 75 74 68 30.184 70.0 66.7 ... NE
12 75 73 65 30.185 69.7 62.3 ... NE
13 74 79 70 30.195 73.2 67.0 ... E
14 75 77 69 30.244 73.0 67.7 ... E
15 75 76 68 30.288 72.7 57.3 ... NE
16 74 75 66 30.225 72.0 58.0 ... NE
17 72 75 71 30.147 72.2 57.3 ... NE
18 73 74 73 30.090 73.2 86.7 .11 NE
19 74 78 75 30.044 76.5 81.7 .06 NE
20 75 82 75 29.962 77.2 82.0 .05 E
21 77 81 75 29.905 78.5 80.0 .10 S
22 78 90 79 29.863 82.0 64.0 ... SW
23 80 95 83 29.820 85.5 59.0 ... W
24 77 78 71 29.856 75.0 59.3 ... NE
25 75 73 71 29.911 76.0 68.7 .09 NE
26 68 73 68 30.049 69.5 64.0 ... NE
27 72 7 67 30.045 70.2 69.7 .02 W
28 70 69 71 30.084 70.0 80.0 .94 NE
29 75 73 69 30.094 72.0 69.0 .18 NE
30 70 75 68 30.049 70.7 73.7 ... NE
31 74 79 69 30.079 74.0 69.0 ... NE

   Barometer—Highest, 30.316; lowest, 29.637; monthly range, 679; monthly means, a.m., 30.027; p.m., 29.979; midnight, 30.029; mean daily, 30.016
   Thermometer&mdashHighest, 96°; lowest 48°; monthly mean, 72.8°; monthly mean, a.m., 74.9°; p.m., 77.3°; midnight, 60.4° monthly range, 48°; greatest daily range, 29°; mean of maximum temperatures, 80.1°; mean of minimum, 64.4°; mean daily range, 15.7°.
   Wind—Prevailing, NE; number of miles traveled, 6,311; maximum velocity, 36.
   Rainfall—Total, 2.48 inches; number of days on which rain fell, 12; number of cloudy days, other than those on which rain fell, I.
   Mean daily Humidity, 64.1.
   Number of Auroras, none.
   Number of Solar Halos, none.
   Number of Lunar Halos, none.

Source:
Excerpt from "Meteorology of Jacksonville" The Semi-Tropical, July, 1877, p. 445.

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