SUMMARY FOR THE MONTH OF 
FtB 1910 
19 
Data for pressure, dry and wet thermometers, dew-point, “t.midi^por^ure. andmeau cloudiness are in 75th meridian time. All other data are m 
Mean. 
Highest. 
W 
Date. 
Lowest. 
(*) 
Date. 
Absolute 
range. 
8 a. m. 
8 p. m. 
Monthly. 
(?) 
#Lfo 
So. obi 
(L If- 
7^ l 3S' 
/ 03 “2 
Corrected mean- 
MS?# 
PRESSURE. — * i j 
(Correction to reduce to a 24-hour mean ih-‘-L) 
STATION. 
REDUCED. 
Mean. 
Highest. 
(A) 
Date. 
Lowest. 
(h) 
Date. 
Absolute 
range. 
8 a. m. 
8 p. m. 
Monthly. 
( 9) 
*2?,/a! 
l> // 
{£ 
/ O (f* 
Corrected mean- 
Bo. 
3,500-ft_ 
10,000-ft_ 
TEMPERATURE. 
MEAN. 
Mean Cloudiness. 
Sunshine. 
Number of Days. 
Number of Days with Precipitation (Mid. to Mid.). 
8 a. m. 
8 p. m. 
Monthly. 
(0 
Percentage of 
possible. 
Clear. 
Partly cloudy. 
Cloudy. 
Clear. 
(«) 
Partly cloudy. 
(“) 
Cloudy. 
(«> 
- 
ST?- . 
(C2^C> 
/ & 
r 
/J 
n 
<c2> 
Dry. 
Wet. 
Max. 
Min. 
Monthly. 
(?) 
8 a. m. 
8 p. m. 
(8+8)-t-2 
(9) 
8 a. m. 
8 p. m. 
Monthly. 
(?) 
n f 
/Mi, 
Lv ^ - 
Cr 
}t>; 3 
tif 
—r 
Dew-point. 
Relative Humidity. 
Vapor Pressure. 
8 a. m. 
8 p. m. 
Monthly. 
(g) 
8 a. m. 
8 p. m. 
Monthly. 
(?) 
8 a. m. 
8 p. m. 
Monthly. 
(?) 
- 
✓ 
- 
- 
3 ?7 
C 
< 
High- 
est. 
(i) 
Date. 
( i) 
Lowest. 
(<) 
Date. 
(0 
Absolute 
range. 
Greatest 
daily range. 
(i) 
Date. 
to 
Least daily 
range. 
<0 
Date. 
(i) 
Sea- 
level. 
3,500- 
ft. 
10,000- 
ft. 
(?) 
JT7 
/s~ 
-// 
2 c? 
<3 v 
u 
-y 
/ 
/ 
NUMBER OF DAYS WITH—(j) 
Maximum. 
32° 
or below. 
/ 3 
90° 
or above. 
Minimum. 
32° 
or below. 
Zero 
or below. 
^5 
WIND. 
Total movement 
(mid. to mid.). 
Average 
hourly 
velocity. 
^ 2 
Prevailing 
direction. 
(p) 
ML 
Maximum 
velocity. 
(r) 
Direction. 
(r) 
Number of Times Wind Observed from the 
N. 
NE. 
E. 
0 
SE. 
3)^ 
sw. 
*7 
WEATHER. 
w. 
NW. 
Calm. 
a 
MISCELLANEOUS PHENOMENA. 
DATES OF—(MIDNIGHT TO MIDNIGHT) 
Frosts. 
Light. 
Heavy. 
Killing. 
Thunderstorms. 
(*) 
WlNDS. 
(40 miles or over.) 
Solar 
Halos. 
/7-^fO-Le^ 
Lunar 
Halos. 
J9 " 
Fog. 
Haze. 
Smoke. 
Hail. 
Aurora. 
Light. 
Dense. 
Light. 
Dense. 
Light. 
Dense. 
ts- 
PRECIPITATION (in inches and hundredths), (jn) 
TOTAL 
AMOUNT. 
Greatest 
Amount in 24 
Consecutive 
Hours. 
Am’t. 
Date. 
(*) 
/•/ 7 
°,l*7 
'UT 
EXCESSIVE. 
2.50 Inches in 24 Hours, j 
( l ) * 
Am’t. 
Duration. 
h. in. 
Date. 
(k) 
— „ 
1 Inch per Hour. 
(0 
Am’t. 
Duration. 
h. m. 
Date. 
(*) 
NUMBER OF DAYS WITH— (Mid. to Mid.). 
Trace. 
.01 
or more. 
.04 
or more. 
.25 
or more. 
1.00 
or more. 
Total. 
<5~ 
o 
7^ 
a 
SNOW. 
Snow. 
Tot a l 
Depth. 
(«) 
Average 
Depth at 
End of 
Month. 
Trace 
or 
more. 
.01 or 
more 
melted. 
a 
3.C 
( w) Maximum precipitation in 5 minutes — -_j5L^r_, date -- JL - 
30 minutes _, date--; 1 hour . 
• 10 minutesdate .- 7----. ; 15 minutes . date.- 
-Lt .-._; 2 hours_1 date 
excessive. 
Date. 
' V ~*L 
Total Duration. 
From— 
To— 
Total 
am’t of 
precipi¬ 
tation. 
Excessive Kate. 
Began— 
Ended— 
Am’t 
before 
excess¬ 
ive 
began. 
Accumulated Depths during Excessive Rate, for Consecutive Periods of Time indicated below. 
20 
min. 
60 
min. 
80 
min. 
100 
min. 
120 
min. 
*The duration is the time precipitation.was actually recorded. 
8-154 
Prepared by. 
AD 
sXJq&UsA kAi , Weather Bureau. 
