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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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