-30-20 -10

0 10 20 30

Tem

pera

ture

( ˚C

) 1

D

DEC JAN FEB

MAR APR MAY

JUN JUL AUG

SEP OCT NOV

J F M A M J J A S O N

10

100

1000

Prec

ipita

tion

(mm

) 20 30 40 50

0

50

0

50

0

50

0

50

0

50

0

50

0

50

0

50

Maximum Temperature (˚C)

0 10 20 30 40Temperature of Warmest Month (˚C)

-75 -60 -45 -30 -15 0Minimum Temperature (˚C)

-30 -20 -10 0 10 20Temperature of Coldest Month (˚C)

-20 -10 0 10 20Annual Temperature (˚C)

0 1 2 3 4 5 6 7Growing Degree Days on 5˚C Base X 1000

10 100 1000 10000Annual Precipitation (mm)

0.0 0.2 0.4 0.6 0.8 1.0Actual Evaporation/Potential Evaporation

Perc

ent o

f Tot

al N

umbe

r of O

ccur

renc

es o

f Tax

on

Prec

ipita

tion

(mm

)

10

1

1

1

100

1000

10

100

1000

10

100

1000

1

10

100

1000

Temperature (˚C) -30 -10 10 30 0 -30 -10 10 30 0 -30 -10 10 30 0

0 10 20 30 40 10

100

1000

10000

July Temperature (˚C)

Distribution data forCanada and United States only

Annu

al P

reci

pita

tion

(mm

)

0 10 20 30 40

-30

-20

-10

0

10

20

July Temperature (˚C)

Janu

ary

Tem

pera

ture

( ˚C

)

1 10 100 1000 1

10

100

1000

July Precipitation (mm)

Janu

ary

Prec

ipita

tion

(mm

)

0 2 4 6

Moisture IndexAE/PE: 0.85-1.0

WET

0 2 4 6

Moisture IndexAE/PE: 0.73-0.85

0 2 4 6

Moisture IndexAE/PE: 0.55-0.73

-30

-10

10

-20

0

20

30

0 2 4 6

Tem

pera

ture

of C

olde

st M

onth

( ˚C

)

Growing Degree Days on 5˚C Base X 1000

Moisture IndexAE/PE: < 0.55

DRY

Annabsentpresent

Jan

40-30 -20 -10 0 10 20 30Jul

Temperature (˚C)

Ann

Jan

1 10 100 1000 10000Jul

Precipitation (mm)

40-30 -20 -10 0 10 20 30

0 2 31 4 5 6 7Growing Degree Days on 5˚C Base X 1000

0.0 0.2 0.4 0.6 0.8 1.0

USGS Professional Paper 1650–G

Actual Evaporation/Potential Evaporation

Month

max

5%25%

median75%

95%

min

Temperature of Coldest Month (˚C)

Myrica californica Cham.

Accepted name: Morella californica (Cham.) Wilbur

Number of grid points: 70

Common name: Pacific bayberry

Primary source(s): Little (1976)