Roseburg review. [volume] (Roseburg, Or.) 1885-1920, 1886-07-30

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The extremes Of heat and cold at Rosebure
are modified by IFS proximity to the Pacific
ocean and its Japan gulf stream; its mean an.
nual temperature is higher than other rlaces
having the same latitude, yet its extremes
! OF heat and cold are considerably less. Ii is
rare occasion thatthc temperature rises above
go ard rarely falls below TO-; the highest
mean temperature for single day was
ST.2 July 26th, 1879, the lowest
1910, 23d, December 1879. No matter how
warm the day may be the nights are pleasant
for sleeping; during the summer the tempera-
ture may rise to So in the afternoon while at
night it falls below CO..
HUMIDITY.
The mean annual humidity is 1873 per cent
OF saturation-full saturation is considered 4,
100 per cent; the nights show a greater per
cent of saturation, beng greatest about A. NJ.
from which time there is steady decrease
until about q p. NJ. whca sataration again in.
creases. Saturation or 100 per cent of humid.
ity could be represented by 10, then at a A. ".
1t would be 8, at A. NJ. 2, at IL noon s, Ar.
NJ. and p. NJ. 6. December shows the air as
containing the greatest amount of moisture.
becoming more dry up to August, when it
steadily increases again.
PRECIPITATION.
The amount of percipation, monthly, follows
the humidity or amount of moisture. The
greatest amount falling in December the least
IN August. The seasons Of wet and dry. hv
reason OF the trade winds of the Pacific, are
well defined. The months from Nav TO
October have a small amount of rainfall. or il
may be said the dry season begins Nav 1st
the wet season October 18th. December has
an avcsage rainfall of 6.33 inches, August az
OF an inch. The greatest rainfall in any one
month was II.6o in, in January 1881, the least
90 in August 1882 and 1885. The average
seasonal rainfall is 34.73 inches of which
r4.6r in. falls from July Ist to January rst,
and 7o I2ln from January to July, with the
greatest rainfallin December, January and Feb
ruary, in which time there is an AVERAGE of
IIoo in, or half the rainfall of the season falls
IN the three months. The greatest amount
falling in any one season WAS 43 81 in, in ~,
rs the least 1897 in, in 1928.
Snow.
snow is OF ra &c occurrence, and when il
loes tall ii generally, mets as it falls or soon
'fter i, has fallen. ITS greatest depth in the
last 9 years was 3 inches and this lasted but
short time.
Dew.
Dew often forms with sufficient copiousness
S to insure good crops, though no rain may
all when 1t would be of benefit to crops. It
most often observed 10 June, July and August.
Foe
fog Is rare in summer and more common in
winter, even then it seldom Lasts long; NOV
ng in from the ocean during the carly morning
md generally dissipating by noon or P. NJ. /
'og patches are occasionally seen on the low
rounds, especially along the course of the
lver IN the carly morning in summer.
CLOUDS.
Situated as this part of the country IS and |
oartaking the nature of both marine and
ontinental climate, the amount Of cIoudiness
not so great after taking an extended period
nto consideration. The average number ofI
lear days during the year is 100, fair days
81, cloudy days III, days on which rain fell
22. Kain may fail on clear, fair or cloudy
ay, hence the sum Of all the days will make
core than sos, because one day NAV be
lear day and so counted, rain may also fall
n that day, hence it is counted twice. An.
ust is the clearest month, Demcember pre-.
ents the most clouds.
WINDS.
The winds are generally light and variable.
nth north and northwesterly winds from Mayto
December and southwest to east winds from |,
December 10 May, principally southwest, the
outhw est winds in winter modify the climate.
'hich, otherwise would be rigorous. The
lghest velocity with which the wind moved
Ias IL miles per hour on August and 1884,
uring thunderstorm: il is rare occurrencel
nat it has velocity OF over 20 miles Der
our. The wind has such a light velocity
hat the oscillations of the vane FREQUENTLY
over 90. Rain generally accompanies the
outhwesterly and southerly winds, especially
a the winter months. If rain accompanies
r occurs during the prevalence Of northerly
ind, at any time Of the year, its continuance E |