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1850.

1851.

1852.

1853.

1854.

1855.

1856.

1857.

1858.

1859.

1860.

1861.

1862.

1863.

1864.

1865.

1866.

1867.

1868.

1869.

1870.

1871.

1872.

1873.

1874..

1875.

1876.

1877.

1878.

1879.

1880.

1881

1882.

1883.

1884.

1885.

1886.

1887.

1888.

1889.

1890.

1891.

1892.

1893.

1894.

1895.

1896.

1897.

Year.

MONTHLY, SEASONAL, AND ANNUAL PRECIPITATION IN INCHES AND HUNDREDTHS.

Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dec. Annual.

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0.00 1.13 1.00 0.09 0.00 0.68 0.00 0.00 0.00 0.19 2.82 1.93
0.03 1.51 0.34 0.87 0.71 0.01 0.00 0.00 0.02 0.01 0.25 3.74
0.58 1.84 1.87 0.85 0.32 0.00 0.00 0.40 0.00 0.06 1.45 4.50

2.32

0.54 0.77

0.52 1.35

0.99

0.50 0.20 1.52 0.25 2.10 0.05 0.00 0.21 0.00 0.00 1.28 1.77
0.99 2.56 1.88 0.89 0.18 0.01 0.07 1.36 0.09 0.27 0.04 3.29
1.97 3.59 1.30 1.52 0.06 0.00 0.00 0.04 0.00 0.11 2.15 0.41
1.27 1.86 1.59 2.17 0.29 0.00 0.00 .0.00 0.07 0.00 1.22 1.30
0.26 1.76 0.00 0.04 0.08 0.03 0.00 0.02 0.01 0.49 2.16 1.30
1.52 0.44 1.24 0.17 0.00 0.19 0.00 0.04 0.10 0.47 0.28 3.10
0.00 1.89 0.20 0.36 0.17 0.00 0.02 0.00 0.00 0.18 1.49 1.79
0.72 1.49 0.15 0.65 0.04 0.05 0.14 0.00 0.00 0.00 2.88 2.99
0.82 0.79 0.05 0.04 0.00 0.19 0.00 0.00 1.59 0.05 1.19
3.20
5.56 1.39 0.97 1.05 0.16 0.48 0.11 0.00 0.00 0.89 0.05 0.93
0.32 1.09 0.33 0.13 0.02 0.00 0.00 0.00 0.36 0.00 0.73 0.04
0.04 2.50 0.20 0.01 1.25 0.01 0.11 0.00 0.00 0.04 2.41 1.04
1.28 3.00 0.00 0.56 0.00 0.01 1.29 0.00 0.00 0.02 0.52 0.84
5.05 3.43 1.47 0.11 0.09 0.00 0.00 0.10 0.00 0.00 0.24 1.82
0.85 7.88 0.48 0.04 0.00 0.00 0.30 0.00 0.34 0.45 3.06
3.37 1.63 0.73 1.20 0.15 0.00 0.51 0.00 0.05 0.00 2.00 1.52
2.88 1.88 1.98 0.53 0.33 0.00 0.05 0.00 0.00 0.05 2.32 0.94
0.33 0.20 0.28 0.00 0.04 0.07 0.00 1.54 0.18 0.42
0.01 0.70 0.34 0.00 0.00 0.00 0.00 0.00 1.33 1.39
2.63 0.46 0.26 0.12 0.00 0.00 0.18 0.00 0.00 0.00 1.40
0.44 4. 15 0.11 0.10 0.03 0.00 0.00 1.95 0.00 0.00 0.77 5.46
3.11 3.73 1.20 0.34 0.34 0.00 0.12 0.00 0.11 0.53 0.88 0.55
2.38
0.37 0.45 0.12
0.20 0.02 0.00 0.21 0.39 0.00 2.25 0.41
2.47 2.44 1.78 0.06 0.05 0.05 0.03 0.06 0.03 0.08 0.04 0.15
1.05 0.18 1.44 0.26 0.43 0.00 0.00 0.00 0.00 0.81 0.06 3.89
1.45 4.83 1.41 2.91 0.58 0.16 0.00 0.00 0.00 0.96 0.00 1.57
3.54 1.04 0.10 0.60 T. 0.07 0.00 0.00 0.00 0.29 2.77 6.30
0.61 1.50 1.43 1.34 0.06 0.06 0.09 0.32 0.00 0.53 0.28 4.15
0.52 0.45 1.88 1.35 0.04 0.05 0.00 0.01 0.04 0.24 0.12 0.30
4.53 2.55 1.02 0.45 0.18 0.07 0.00 T. 0.01 0.41 0.39 0.13
1.09
0.95 0.41 0.31 1.14 0.08 0.00 0.00 0.00 2.01 0.20 1.82
1.34 9.05 6.23 2.84 2.17 0.31 0.00 T. 0.07 0.35 0.11 5.12
0.35 0.02 0.78 1.20
0.61 0.06 T. 0.13 T. 0.31 1.56 0.71
1.51 3.73 1.95 0.04 0.07 T. T. 0.00 0.05 0.95 0.10
0.04 4.51 0.02 2.14 0.47 0.04 0.01 T. T. T. 2.08 1.14
1.96 1.48 2.79 0.10 0.22 0.04 0.01 T. 0.04 0.26 1.83 2.84
1.72 1.80 2.20 0.19 0.03 0.10 T. 0.04 T. 2.12 0.12 7.71
2.79 1.70 0.41 0.05 0.08 0.00 0.00 T. 0.65 0.01 0.72 1.61
Ꭲ . 0.00 0.08 0.04 T. 1.29
0.00 0.05 T. 0.22 0.94 0.69
T. 0.00 0.00 0.11 0.91 1.91
0.00 0.04 0.01 T. 0.00 2.26
0.00 0.00 0.01 0.27 1.19 0.27
T.
0.13
Ꭲ . 0.97 0.98 2.18
3.13 2.72 1.53 0.02 0.12 T. 0.01 T. T. 1.06 0.02 0.32
1.71 0.06 0.91 0.22 0.66 0.02 0.00 0.00 0.07 0.00 0.15 0.87
2.34 0.30 0.85 0.29 0.10 0.27 0.00 0.07 0.00 0.35 0.86 0.65
1.26 1.45 0.08 0.00 T. T. 0.30 1.43 0.00
0.01 0.77 0.02 T. T. 0.06 0.28 041 0.02
0.64 0.34 0.07 0.05 0.11 0.07 0.33 0.96 1.97

1

6.95

1.58

0.78

1.21 4.84 0.27 0.76 0.35 0.05
2.96 0.96 0.41 1.15 0.13
0.47 5.50 0.22 0.39 T.
0.29 0.49 1.05 0.11 0.09 0.01
1.43 0.11 0.19 0.00
1
1.27 0.02 2.89 0.25 0.03 0.01

7.33 0.53

I

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Season
of-

7.84 1849-50
7.49 1850-51
11.87 1851-52
7.88 1852-53
11.63 1853-54
11.15 1854-55
9.77 1855-56
6.15 1856-57
7.55 1857-58
6.10 1858-59
9.11 1859-60
7.92 1860-61
11.59 1861-62
3.02 1862-63
7.61
7.52 1864-65
12.31 1865-66
15.72
11.16
10.96
4.37
5.64
1870-71
6.04 1871-72
13.01 1872-73
10.91 1873-74
6.80
7.24.

1863-64

1866-67

1867-68

1868-69
1869-70

1874-75

1875-76

1876-77

1877-78

.8.12
13.87
14.71 1878-79
10.37 1879-80
5.00 1880-81
9.74 1881-82
8.01 1882-83
27.59 1883-84
5.73 1884-85
15.35 1885-86
10.45 1886-87
11.57 1887-88
16.03 1888-89
8.02 1889-90
8.99 1890-91
9.09 1891-92
10.29 1892-93
4.35 1893-94
11.33 1894-95
8.73 1895-96
8.93 1896-97
4.67 1897-98
6.08 1898-99
5.77 1899-00
9.49 1900-01

Seasonal.

8.41

9.88

10.84

10.99

12.17

9.85

4.78

7.56

6.59

6.70

7.76

15.75

3.76

5.25

9.63

11.63 13.93

11.44

11. 22 5.54

5.06

7.36

8.18

15.07

5.82

9.99

3.66

16.10

7.88

14.77

9.26

9.50

4.92

25.97

8.80

16.83

8.33

9.82 11.05 14.98 10.47

8.65 9.21 5.01 11.86 6.34 11.66 4.98 5.31

1898.

1899.

1900.

1901..

Mean

0.69 0.03 0.53
2.08 4.77 1.07

1.75

1.91 1.37

I

9.52

5.90

10.45

January

February

March

April

May

June.

1872. 1873.

1874.

1875.

1876.

1877

1878.

1879.

1880.

1881.

1882.

1883.

1884.

1885.

1886.

1887.

1888.

1889.

1890.

1891..

1892.

1893.

1894.

1895.

1896.

1897.

1898.

1899.

1900.

1901..

Month.

Greatest
Date..

Year..

Less than 0.01 0.01 to 0.10..

0.11 to 0.25.

0.26 to 0.50.

0.51 to 1.00

Over 1.00 inch

Year.

[blocks in formation]

Janu- Febru-
ary. ary.

a 1850

a 1885

a 1857

a 1864

a 1850

a 1852

19

71

31

35 20

14

1893

March. April.

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Janu- Febru-
ary. ary.

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Number
of times

66

precipita

tion has exceeded normalin 50 years.

33

30

10

16 17 20

17

14 10

GREATEST PRECIPITATION, IN INCHES AND HUNDREDTHS, IN TWENTY-FOUR HOURS.

1.20 11-12 1886

July
August

a Also in other years.

September.
October..

82

31

39

21

5

November
December

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Month.

May.

0.53

1.12

0.20

1.25

1.35

0.95

1.24 0.35 0.55 1.53 0.18 1.11

0.41

0.55

1.53

0.80

0.58
2.55

0.31 0.82

0.29

2.94

0.98

0.92

1.89

1.66

0.48

0.06

1.80

0.74

0.29 0.15 0.10 0.00 0.00 0.09 0.00 0.00 0.00
0.05 0.10 0.02 0.00 0.00 1.80 0.00 0.00 0.54
0.28 0.33 0.21 0.00 0.09 0.00 0.10 0.18 0.31
0.30 0.11 0.08 0.02 0.00 0.21 0.29 0.00 0.52
0.80 0.05 0.05 0.05 0.03 0.06 0.03 0.06 0.03
0.52 0.16 0.20 0.00 0.00 0.00
0.00 0.78 0.06
0.36 0.82 0.28 0.07 0.00 0.00 0.00 0.96 0.00
0.05 0.17 0.00 0.07 0.00 0.00 0.00 0.16 2.75
0.44 0.38
0.06 0.06
0.07 0.28 0.00 0.48 0.17 1.29
0.18
0.83 0.70 0.02
0.05 0.00
0.01 0.04 0.21 0.07 0.19
0.99 0.55 0.13 0.17 0.05 0.00 0.00 0.01
0.21 0.31 0.11
0.43 0.19
0.18
0.69 0.08 0.00 0.00 0.00 1.82 0.20 0.63
1.71 1.01 1.45 0.24 0.00
T. 0.07 0.23 0.10
0.20 0.01 0.56 0.80 0.54
0.04 Ꭲ . 0.13 0.00 0.21 0.59
1.76 0.69 1.38 1.20 0.02 0.04
T.
T. 0.00 0.05 0.74
0.04 1.96 0.02
0.94 0.44 0.04 0.01
T.
T.
0.66 1.25
0.68 0.15 0.04 0.01
0.04 0.20
0.95 1.16 0.14 0.02 0.10
T.
T.
1.04 0.35 0.03 0.04 0.00 0.00
0.37
1.35 0.17 0.55 0.34 0.05
T.
0.00
0.08
1.25 0.34 0.41 0.95 0.13 0.00 0.04 T.
2.00 0.22 0.22
Ꭲ .
T. 0.00 0.00
0.20 0.15
0.65 0.06 0.08 0.01 0.00 0.04 0.01
2.15 0.29 0.70 0.08
0.15
0.00 0.01 0.22
0.57 0.02 1.32 0.12 0.03 0.01
0.09
T. 0.64
0.55 0.02 0.04
Ꭲ .
T.
T. 0.67
0.06 0.47 0.09 0.26 0.02
0.00 0.00 0.06 0.00 0.11
0.24 0.52 0.28 0.07 0.25 0.00 0.07 0.00 0.20 0.42
0.66 0.03 0.48 0.79
1.35 0.05 0.00
T.
T. 0.20 0.52
0.74 2.39
0.53 0.01 0.52 0.02
T.
T. 0.06 0.18
2.94
2.39 2.00
1.45! 0.25 0.09 1.80 0.37
12
8-9
14-15
1
22
12 28-29
1882 1901
1884 1899 1874 1873 1890

0.75

0.60

1.04

T.
T.
0.04
T.

0.67

0.08

2.31

1.32

1.08

1.54
0.01 0.72 1.23
0.02 0.09 0.69
0.10 0.82 0.43
0.11 0.81 0.74

1.25

0.45 0.43

T. 0.00 0.59

0.00 0.00

T.
0.01

0.46 0.15
0.88 1.10
0.02 0.17

1.62 1.01

0.55

0.71

1.33

0.54

0.50

0.37

0.01
2.55
27
1879

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TOTAL NUMBER OF DAYS WITH PRECIPITATION SINCE NOVEMBER 1, 1871.

16

57

35

16

10

1

June. July. August.

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March. April. May. June. July. August.

'Greatest monthly Least monthly
precipitation. precipitation.

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Amount. Date.Amount. Date.

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Inches.

15

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!

1.29 1865

1.95

1873

1.59 1861

2.12 1889

2.88 1860
7.71 1889

11

4

0

1

Inches.
0.00

0.00

0.00

0.00

1.82
27
1883

17

0.00
0.00

September.

79120

242100

!

Octo- Novem- Decem- Greatest September. ber. ber. ber. annual.

2.75
9
1879

a 1850

a 1850

a 1850

a 1853

a 1872

a 1900

25

36

23

3

1

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Number

of times precipitation has exceeded normal in 50 years.

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Octo- Novem- December.

ber. ber.

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10

8

10

7

15

20

16

1.12

1.80

1.35

0.95

1.53

1.09

0.96

2.75

1.29

0.83

2.94

1.82

1.89

0.80

1.76

1.96

1.25

2.31

1.32

1.35

1.25 2.00

0.65 2.15 1.32

1.62

0.71

1.33

1.35

2.39

2.94 Jan. 12 1882

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DATES WHEN PRECIPITATION EQUALED OR EXCEEDED 2.50 INCHES IN ANY CONSECUTIVE TWENTY-FOUR HOURS, LOCAL TIME.

December 4, 1873, 10 p. m. 3d, during night 4th
November 9, 1879, during a. m. 9th, to 8.10 p. m. 9th..
December 27, 1879, 6 a. m. to 6 a. m. December 28..
January 12, 1882, 3.50 a. m. to 3 a. m. January 13

No snow is reported to have fallen at San Diego since the beginning of the record of observations in 1850.

Maximum rate of rainfall from recording rain gauge; record since 1893: December 28, 1896, in one minute, 0.19; in five minutes, 0.32; in ten minutes, 0.47; in one hour, 0.79.

January
February

March

April

May

June..

HIGHEST WIND VELOCITY, DIRECTION, AND DATE FOR EACH MONTH DURING THE PAST TWENTY-SEVEN YEARS.

[Record began January 1, 1873.]

a Direction and date missing.

1...

2.

3.. 4.

5..

6..

7..

8..

9.

10..

11..

12 (noon)

Months.

1...

2. 3..

4..

5..

6..

7..

8.. 9. 10... 11..

12 (midnight)

Average

A. M.

P. M.

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Inches.

2.52

2.75

2.55

2.94

2.8

3.2

4.6

7.1

6.7

8.9 8.7 9.9 10.0 10.3 10.5 10.2 10.4 9.8 9.9

9.2

9.0

8.3

8.0

8.3

6.3

7.1

4.8

5.4

3.6

4.1

3.0

5.4

5.2

Direc-
tion.

30 NW.

24

W.

28

NW.

32

NW.

32 NW.

36 NW.

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Day and year.

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Nov. Dec.

2.7 3.1
2.7
3.2
2.9
3.3
2.8. 3.2
2.9 3.4
2.9: 3.5
2.9 3.4

3.2

3.5

3.1

3.6

3.0

3.5

3.0

3.1

3.8

3.1

4.4

5.5
7.4

5.8

9.0: 7.4

9.6
9.8

8.7
9.1

8.7

9.4
8.4
H
6.8

7.6
5.7

4.8

3.9

3.5

3.2

3.0

3.1

2.6

3.1

4.8

4.6

3.6

3.8 3.9 3.9 3.9 3.9

3.9

3.8

3.9

4.0

3.9

3.4

3.9 4.9 6.4 7.6

8.3

8.0

7.0

5.5

4.3

3.8

3.8

3.8

4.7

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