Slike strani
PDF
ePub

CLIMATE OF SOUTHERN COAST.

Data by Mr. JOHN R. WILLIAMS, Observer, U. S. Weather Bureau.

San Luis Obispo is situated in latitude 35° 18' north, longitude 120° 39' west. It is distant from Port Harford, or the Pacific Ocean, about 10 miles. A range of low hills intervenes between the coast and the city. The average elevation of the San Luis Range to the west is about 1,000 feet. The San Luis Valley southwest of the city has a general elevation of less than 150 feet. Directly west of the city, at a distance of about 1 mile, is a large hill (Cerro San Luis Obispo), elevation 1,292 feet. East of the city are the foothills of the Santa Lucia Range, varying in elevation from 1,700 feet 2 miles east of the city to 2,830 feet 5 miles east. The general elevation of the city is about 200 feet above sea level. The elevation of the Weather Bureau office is 201 feet.

1869-70.

1870-71.

1871-72..

1872-73..

1873-74..

1874-75..

1875-76.

1876-77.

1877-78..

1878-79.

1879-80..

1880-81.

1881-82.

1882-83.

1883-84.

1884-85.

1885-86.

1866-87.

1887-88.

1888-89.

1889-90.

1890-91.

1891-92.

1892-93..

1893-94.

1894-95..

1895-96.

a

Owing to the topography, the range of temperature is large. Daily ranges of 40° or more are not infrequent. The lowest temperature recorded is 24° and the highest 106°. The mean annual temperature is 58.9°. The mean annual rainfall, based upon Weather Bureau records covering a period of six years, is 17.22 inches.

The following table, showing the seasonal rainfall at San Luis Obispo for the past twentyeight years, is taken from the pamphlet "On the climate and wealth of San Luis Obispo County," by Myron Angel:

MONTHLY AND ANNUAL PRECIPITATION (INCHES AND HUNDREDTHS).

Season of

Aug. Sept. Oct.

T.

0.20

Nov. Dec. Jan. Feb. Mar. April. May. June. July. Total.

2.90

0.78 0.71 4.85 0.74 2.40 0.85
1.51 4.43
2.79 0.28
5.16 3.45 0.71 1.37
5.00 1.79

13.93

6.00

7.96

0.48

0.25

!

4.29 4.04 3.23 1.00
12.10 0.28 0.50
2.20 9.87 5.29 5.30 1.26
4.83 0.42 1.74
1.42 3.90 7.88 11.91 2.74 2.75
1.50 2.58 1.78 2.15 1.60 1.80
1.40. 3.03 1.75 7.23 2.36 8.78 0.52
0.48 13.35 4.71 1.90 1.40 1.85
0.25 2.00 0.85 3.40
6.75 1.73
0.69 2.95
0.44 1.50 1.60 4.88 1.10 3.85
3.56 10.57 10.21
12.41
3.39
2.17 0.13 8.85 2.25
0.94 3.15 0.10
0.04 12.90 3.67 5.78 0.79 2.37 3.75
0.25 1.25 1.06 1.10 9.60 1.29 1.56
1.40 3. 15 7.02
0.28
3.84 0.14
4.48 3.36
1.50
2.08 7.51 0.61
2.46 11.37 7.27 4.67 3.07
0.29 0.41
0.42 6.04 0.88 7.14 1.97 1.96 0.13 0.15
0.20 5.15 0.70 2.88 4.25
0.60 2.23 0.05
6.57 4.02 6.35 9.33 1.14 0.08
1.64 1.83 2.31 0.79 0.41 1.32
5.45 8.02 1.92 2.93 0.67 0.47
0.68 8.23
3.16 2.22 0.10 T.
1.44 3.02 3.04 5.22 4.40 3.17 0.18

0.84

0.68

0.82

0.27

4.28

1.16

0.75

0.40' 1.65

SAN LUIS OBISPO.

2.05 0.25

9.19

0.66

0.38

2.40

[ocr errors]

2.05

6.20

0.15 2.76 0.03 0.82 0.45 1.71 0.35 1.80 1.56

1.81

T.

T.

[ocr errors]

1896-97.

a On January 2, 1901, a minimum temperature of 22° F. occurred. Rainfall in twenty-eight years, 589.24 inches; average in twenty-eight years, 21.04 inches.

[merged small][merged small][ocr errors][merged small][merged small][merged small][merged small]

11.83

12.97

27.02

12.79

20.52

19.69

30.12

8.15

30.60

11.66

25.82

23.69

17.03

17.01

42.40

17.59

29.30

16.56

18.33

19.54

38.33

19.51

16.33

30.40

9.86

23.33

17.79

20.67

[blocks in formation]

PRECIPITATION, IN INCHES AND HUNDREDTHS-Continued.

Jan.

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

1.80

1.56 0.68

1.44: 3.02 3.04

8.05 1.82 2.44
8.23 0.00 3.16
5.22 4.40 3.17
1.37 2.20 0.91
5.56 0.28
2.13 0.16
5.09 1.48

0.67 0.47 0.00 0.00 T.
T.
2.22 0.10 T.
0.04 0.20 T.
0.18 0.04 T.
0.00 0.00 0.07 0.79 0.07 0.65
0.04" 0.00 0.00 0.20
0.39 0.08 0.64
0.10 0.92 0.00 0.00 0.00 3.92 1.94 4.51!
0.98 1.38 0.01 T.
T.
T.
1.93 8.01 0.26
0.94 0.52 0.16 T.
0.03 0.04 1.71 2.45 1.63

0.06

1.04

1.54

7.62 2.18 3.25

Veloc- Direc-
ity. tion.

WIND VELOCITY (MILES PER HOUR) AND DIRECTION.

NW.
S.

SE.

S.

W.

W.
N.

Date.

16, 1895

24, 1898

[ocr errors]

3, 1896

24, 1896
1,1897
4, 1896
8, 1899

[blocks in formation]

SNOWFALL.

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

August

September..

October
November.
December

a January.

Annual.

[blocks in formation]

MEAN MONTHLY AND ANNUAL TEMPERATURE (FAHRENHEIT).

N.
N.
NW.

Z ZZ

[blocks in formation]

Year.

1895.. 1896.

1897.

1898.

1899.

1900..

Mean (6 years)

52.3

Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct.

Nov.

62.7 56.6
62.2 56.8

49.7 54.5 52.4 55.6 58.8 63.6 65.6 65.6 64.6
52.7
54.1 56.2 56.2 51.4 58.2 63.8 67.6 66.5 64.3
54.5
51.8
51.6 50.6 59.6 61.2 62.8 65.5 65.4 64.1 59.2 56.6 51.0
47.6 56.3 52.9 59.7! 56.6 63.4 64.5 65.6 64.8 64.6 57.6 53.1
54.2 54.4 54.0 56.4 54.0 62.4 64.4 64.0 65.5 59.6 57.4 54.3
56.2
58.2 54.2 61.6 63.9 64.2 64.9
64.4 62.8 59.8 55.6
54.9 54.0 56.2 58.4 63.3 65.3 65.4 64.8 61.8 57.5 52.9

56.2

Dec. Annual.

58.5

59.3

58.3

58.9

58.4

60.2

58.9

[merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]
[blocks in formation]

Year 1900. January.. February March

April..

May.

June

July.

[blocks in formation]
[ocr errors]

8 p. m.

[ocr errors]

Mean.

Temperature.

[ocr errors]
[ocr errors]

Maximum.

O

Minimum.

[ocr errors]
[ocr errors]

1899.

In.

In.

In.

29.92 30.15 29.46 47.9 59.8 65.4 43.0 54.2 81

I

January..
February
March

29.91 30.25 29.61 47.8

89

86

April...
May..

June

64.4

92

60.0 67.6 41.1 54.4 86 29.86 30.04 29.56 48.1 57.2 63.9 44.0 54.0 1 29.80 29.98 29.65 48.5 60.6 69.1 43.6 56.4 29.82 29.94 29.72 45.3 58.3 65.8 42.2 54.0 75 29.73 29.90 29.56 52.3 68.3 75.0 49.9 62.4 90 July. 29.72 29.86 29.62 53.6 71.1 77.8 50.9 August... 29.73 29.80 29.64 54.3 67.3 75.4 52.7 I September 29.75 29.88 29.64 | 53.0 68.7 80.8 50.2 October. 29.78 30.02 29.41 50.0 63.8 71.9 47.3 November 29.83 30.00 29.55 51.0 60.3 67.3 47.5 57.4 77 December..... 29.89 30.18 29.70 47.9 59.2 65.7 42.9 54.3 70.5 46.3

64.0

65.5

59.6 96

29.81 30.25 29.41 50.0 62.9

58.4 99

[ocr errors]

Monthly.

!

Extremes.

Maximum.

[ocr errors]

Minimum.

[ocr errors][ocr errors][merged small]

Dew

point.

47

8 a. m.

29 38

[ocr errors]
[ocr errors]

48

99 44 48

46

1

3338

2543

8 p. m.

8 a. m.

O

49 52 84 59

[ocr errors]

Relative
humid-

ity.

In.

In.

In.

42 72 54 0.238

25 33 39 60 49

1

41

0.270 5.56 2.36 2.0 3.6 3.5 0.189 0.241 0.28 0.27 1.0 1.7 2.5 0.262 0.295 7.62 2.16 3.9 5.0 5.1 0.269 0.335 1.54 34 41 48 86 68 0.263 0.332 0.10 52 88 59 0.344 0.397 0.92 85 52 0.341 0.388 0.00

44 77 65 42 48 80 6-4

42

49

1.38 1.9 3.1 4.0 0.10 2.6 2.8 3.7 0.92 3.2 1.1 3.4 0.00 8.4 0.5 3.1 0.356 0.391 0.00 0.00 6.9 1.3 3.8 0.342

52

i

0.400 0.00 0.00 4.2 1.0 2.8 0.350 3.92 1.36 2.1 2.0 3.2 73 0.314 0.386 1.94 0.88 3.5 5.4 5.8 2.56 2.1 3.7 3.6 2.56 3.5 2.6 3.7

0.291 4.51. 0.287 0.340 26.39

[ocr errors]
[ocr errors]

40 45 49 83 60 0.298

8 p. m.

Pct. Pct. In.

53 86 58

52 83

36 43 48 80

[ocr errors]

48 80 60

Vapor

pressure.

8 a. m.

44 71 59 0.231

[ocr errors]

Moisture.

[ocr errors][merged small][ocr errors]
[merged small][ocr errors][merged small]

65 0.280

0.343 2.13 0.240 0.303 0.16 37 44 49 80 66 0.292 0.355 2.18

34 39 45 75 58

34 41 45 84 61 0.261

29.88 30.06 29.65 49.1 61.2 66.5 46.0 56.2 80 1.82 3.5 4.2 4.9 29.88 30.08 29.54 46.8 60.9 69.0 43.5 56.2 80 0.16 1.6 2.8 3.2 29.79 30.04 29.61 50.3 61.4 69.4 46.9 58.2 84 2.00 3.7 3.9 4.9 29.79 29.95 29.58 45.8 58.3 64.7 43.6 54.2 80 0.301 0.98 0.54 4.7 3.5 4.5 29.76 29.98 29.58 53.7 64.9 74.6 48.7 61.6 88 42 45 49 75 58 0.301 0.347 1.38 0.92 3.3 2.6 3.0 29.73 29.88 29.58 54.8 68.1 76.5 51.3 63.9 93 45 49 52 82 57 0.347 0.387 0.01 0.01 4.7 2.6 3.9 29.68 29.87 29.55 53.2 70.4 77.0 51.3 64.2 93 87 55 0.356 0.402 T. T. 6.9 1.0 3.9 I August... 29.76 29.95 29.62 57.0 68.2 75.4 54.4 64.9 106 85 60 0.391 0.404 T. 7.2 1.8 5.1 September 29.73 29.90 29.50 56.5 69.2 78.0 50.8 64.4 94 41 49 70 52 0.308 0.359 T. October.. 29.78 30.02 29.56 55.6 64.9 74.5 51.1 62.8 96 43 46 50 74 62 0.323 0.374 1.93 November 29.82 30.01 29.52 49.7 64.1 73.2 46.4 59.8 92 38 43 48 79 60 0.288 0.341 8.01 December..... 29.93 30.05 29.79 47.7 60.6 67.5 43.6 55.6 84 31 38 42 71 54 0.232 0.280 0.26 29.79 30.08 29.50 51.7 64.4 72.2 48.1 60.2 106 78 59 0.302 0.350 17.04

46 50 53
49 52 53

T.

45

T. 3.1 1.4 3.0

I

0.62 3.7 2.8 3.9 4.18 3.0 4.0 4.4 0.26 1.0 2.8 3.1 4.18 3.9 2.8 4.0

31 45 49

Year

a From observations at 8 a. m. and 8 p. m. 75th meridian time. Local mean time 3 h. 3 m. slow.

[ocr errors]

in

Maximum

24 hours.

8 a. m.

8 p. m.

Daylight.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]
[ocr errors]
[ocr errors]

December..... 5.1 N. 27

Year

W.

W.

SE.

5.0 N.

5.6 N. 25

4.9 W. 24

5.7 W. 28

6.1 W. 20

5.1

4.5 W.

5.2 W.

S.

5.1 W.

W.

5.1 W. 23

N.

4.5 N. 28 S.

N.

5.2 W. 28 S.

[ocr errors]

N.

W.

W.

W.

W.

W. 20 N.

16 20

W.

Number of days with gales.

[ocr errors]

0

0

Wind.

Number of winds, 8 a. m. and 8 p. m.

29

0 28

North.

[ocr errors]

0 19

[ocr errors]

Northeast.

0 20 0

26

0 32

[ocr errors]
[ocr errors]

13

12

20

0

1

0 6 2 3

0 23 0

0 11

0

0 25 0

[ocr errors]

1

0 !

0 27 0

0 249

0 18 0

0 11 0

0 22 0

East.

16 0

0

0 5 0

2

0 25

0

0 31 0 4 2 6

0 265

[ocr errors]

31

3 0

[ocr errors]

1 2

1 2 1 12

Southeast.

South.

9 20 18 108

11 0 3

2 43 4

[ocr errors]

0 16 0

3

0 17 0 4

34 0 0

40 0 0

0 28

3

[ocr errors][merged small][merged small][ocr errors]
[ocr errors]
[ocr errors]

0

14 0 8

3 0

1 1

2 1

14

8

Southwest.

91

Partly cloudy.

Northwest.

West.

Calm.

Clear

Cloudy.

8

13

8

7 0 13

0

0

0 12

1

1

14

[ocr errors]

16

17 10

0 33 !

15

15 7

6 6

0 10

1 15

12 0 23

8 0 31

023o

4063 1000+

9 1 27

6 0 21

12 4

1 11 1 24

1 13

0 28

0 15

1 35 1 26

1 4

1 15

0 20

0 11

0 0

8 108

11 7

6

25 13 1 19

1

5

0 9

8

10

2 6

234∞∞

2 15

18 4 9

[ocr errors]

42246

20

13

19 8 4

8

1

7

2

12
7

2

4 18 10

14

[ocr errors]
[ocr errors]

!

0

16

218

1

15

4 11 11

1 13

4 15

632

18355

1976

5

12

[merged small][ocr errors][merged small][merged small][merged small][merged small]

133

0 0

0

0 0

I

0

0 6

0

2

0

0 4

1 17 5 9 7 6 0 0 2

12

8 15

13

1 0 0 10 0

0

0

0

0

0

0

7

7

0 7 11 12 9 8

4498

30

18 4

4

1 3

9

1

11

Precipi

tation.

0.01 inch and over.

0.04 inch and over.

7

2

4

10

3

1

1

74

Number of days.

966 +

10

425

71

6

4

849

00

[blocks in formation]

Snow.

Hail.

4

1

4

5

4

0

0

0

0 0

5 206 82 17 208 95 62 47 43 0 1 87 0 10 600

[ocr errors]

0 0.

[ocr errors]
[ocr errors]

0 1

[merged small][ocr errors]

7

7

3 14

6 6 0

0 13 8 1 20 7

1 1

0

5 261 46 25 185 102 78 36 32

0

0 0 6 0

[merged small][ocr errors][merged small]

0 0

0

Minimum temperature

low 32°.

Below 32°.

Above 90°.

Fog.

1222000

0

[merged small][ocr errors][merged small]

Maxi

mum

temp.

[ocr errors]
[ocr errors][merged small]

00

0

[blocks in formation]

0

0

0

0

[ocr errors]

0 0 0

0

0

0

0 3

0 5 0 0

0 0

0

0

3 0 0 0

0 0

0

[ocr errors]

1 0 0

1

1

[ocr errors]

0

3

0

0 0 0

0

0 1 0

0 0 3 0

0 3

0

1

0 3

0 0

0 29

0

252

2 0 0 0

0

0 0 0

4

0 0

3

0 0

0 0

0

0

1

!

0 0 0

0 0 0

5

12

1

1 0 0 0

[ocr errors]

0

0

Elec

tricity.

Thunderstorms.

[ocr errors]
[ocr errors]
[ocr errors]

1

[ocr errors]
[merged small][ocr errors][merged small][ocr errors][merged small][merged small][merged small]

00

[ocr errors][merged small][merged small]

0

0 0 0

1

0

0 0

0 0

0 0

0 0 0

0 0 0

I

0 0

0

1 0

0

3

0

0

« PrejšnjaNaprej »