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INDEX.

CLIMATOLOGY OF CALIFORNIA
Controlling factors...........

Pressure distribution

Monthly precipitation at San Francisco (inches and hundredths)

Movement of areas of high pressure....
Movement of areas of low pressure

Storms of the West Pacific Ocean
Typhoons of the Pacific Ocean..
Low areas on the Pacific coast.

Track of Pacific storm of November 20, 1895..

Prevailing air drift and ocean effect..

Topography.....

Table of elevations exceeding 1,000 meters (3,281 feet) in California. CLIMATE OF NORTH AND CENTRAL COAST . . .

Climatology of Eureka, and weather conditions along the coast of northern California—

Mean monthly and annual temperatures
Summary of monthly mean temperature..
Weather...

Rainfall at Eureka, from January 1, 1887, to December 31, 1898 (inches and hundredths)
Dates of first and last light and killing frosts, with lowest temperature at Eureka..........

Monthly precipitation, greatest and least and dates...

Average hourly wind velocity at Eureka..............

Highest wind velocity, direction and date for each month at Eureka, from January 1, 1888.
Average humidity (per cent) at Eureka..

Number of foggy days and thunderstorms in fourteen years at Eureka

Total number of days on which precipitation has fallen at Eureka since January 1, 1887.
Greatest precipitation in twenty-four hours for each month at Eureka

Annual meteorological summary of Eureka for the years 1899, 1900
Sunshine at Eureka during the years 1898, 1899, and 1900 .

Climate of San Francisco....

Seasonal rainfall..................

Monthly mean temperatures...

Monthly mean temperatures summary

Weather....

Average temperature for each hour, seventy-fifth meridian time

Average pressure (inches and thousandths) for each hour of seventy-fifth meridian time..
Sunshine for the years 1898, 1899, and 1900......

Annual meteorological summary for the years 1899, 1900

Some maximum and minimum temperatures...

Notes from the record of G. H. Gibbons, M. D., 1847, 1848, 1849, 1850....

Total number of days on which precipitation has fallen from March 1, 1871, to March 1, 1901....
Number of high winds, September, 1881, to December 31, 1900 ....

Highest wind velocity, direction and date for each month to December 31, 1900

Average velocity of afternoon winds..............

Greatest precipitation in twenty-four hours for each month..

Greatest monthly precipitation and date

Least monthly precipitation and date

Number of times monthly precipitation has exceeded the normal for fifty years.
Average hourly wind velocity (miles per hour)..............

Monthly relative humidity (per cent)

Dates of snowfall in San Francisco since March 1, 1871

The great rainstorm of 1866 ....

Rainfall as measured by John Pettee January 1, 1865, to March 19, 1902.. 1176-Bull. L-03-18

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CLIMATE OF SOUTHERN COAST....

San Luis Obispo―

Rainfall (inches and hundredths) for the past twenty-eight years...

Precipitation in inches and hundredths

Wind velocity and direction.....

Snowfall. The only snowfall at the station, one-half inch, occurred March 3, 1896..

Mean monthly and annual temperature

Maximum and minimum temperatures...

Weather

Annual Meteorological Summary for the years 1899 and 1900

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Dates when precipitation equaled or exceeded 2.50 inches in any consecutive twenty-four hours....
No snow reported to have fallen at San Diego since beginning of record in 1850-

Highest wind velocity, direction, and date for each month during the past twenty-seven years..
Average hourly wind velocity (miles per hour) ........

Number of days with one hour or more of fogs and number of thunderstorms in eleven years.
Average pressure (in inches and thousandths) for each hour of seventy-fifth meridian time
Average temperature each hour seventy-fifth meridian time....

Sunshine for the years 1898, 1899, and 1900....

Excessive precipitation....
CLIMATOLOGY OF THE GREAT VALLEY

Red Bluff.

Monthly and annual mean temperature ....

Summary of monthly means and extremes of temperature

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CLIMATOLOGY OF THE GREAT VALLEY-Continued.

Red Bluff-Continued.

Precipitation exceeding 2.50 inches in any consecutive twenty-four hours...
Monthly and annual precipitation (inches and hundredths) ...

Greatest amount of precipitation (inches and hundredths) in twenty-four hours
Weather....

Number of days with thunderstorms....

Dates of first and last killing frosts, from 1882 to 1899, inclusive...

Annual meteorological summary for the years 1899, 1900

Sacramento.....

Mean monthly and annual temperatures.

Maximum and minimum temperatures...

Summaries of monthly means and extremes of temperatures.

Weather.

Dates of first and last light and killing frosts, with lowest temperature and snowfall, and dates of
blooming fruit trees from 1869 to 1901..

Monthly, annual, and seasonal precipitation (inches and hundredths).

Greatest precipitation (inches and hundredths) in twenty-four hours

Dates when precipitation equaled or exceeded 2.50 inches in any consecutive twenty-four hours..
Monthly extremes of precipitation......

Average hourly wind velocity (miles per hour)...

Number of days with precipitation from July 1, 1877, to December 31, 1900 .

Number of clear, partly cloudy, cloudy, rainy, and foggy days, and total number of thunderstorms and
auroras from July 1, 1877, to December 31, 1900

Number of high winds from July 1, 1877, to December 31, 1900...

Highest wind velocity, direction, and date from July 1, 1877, to April 30, 1901....

Greatest precipitation in the shortest periods of time from July, 1877, to April, 1901

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Mean relative humidity......

Total monthly wind movement (miles)

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Monthly and annual precipitation (inches and hundredths).
Greatest monthly precipitation (inches and hundredths)...

Least monthly precipitation and data (inches and hundredths)....

Number of times monthly precipitation has exceeded the normal for four years.

Total number of days with precipitation since December 1, 1894.

Foggy days and thunderstorms....

Number of high winds....

Highest wind velocity, direction, and date for each month (miles per hour).
Average velocity of afternoon winds

Average hourly velocity

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