Diffuse radiation. Daily sums, monthly sums and means.

USA (Region WMO IV: North America)

FORT PECK
SAND POINT
GREAT FALLS
SEATTLE
CARIBOU
BISMARCK
SIOUX FALLS
BOISE
MADISON
LANDER / HUNT
OMAHA
SALT LAKE CITY
ROCKSPRINGS / PENN STATE
PITTSBURGH
BOULDER / TABLE MOUNTAIN
BONDVILLE
SOLAR RADIATION RESEARCH LAB.
ELY / YELLAND
GRAND JUNCTION / WALKER FIELD
STERLING
COLUMBIA
DODGE CITY
BLUEFIELD STATE COLLEGE
FRESNO
MERCURY / DESERT ROCK
SAN JOAQUIN VALLEY
ELIZABETH CITY STATE UNIV.
NASHVILLE / METROPOLITAN
LAS VEGAS / MCCARRAN
OAK RIDGE
RALEIGH
ALBUQUERQUE
GOODWIN CREEK
MISSISSIPPI VALLEY STATE UNIV
SOUTH CAROLINA STATE UNIV.
PHOENIX / SKY HARBOR
SAVANNAH STATE COLLEGE
TALLAHASSEE
BETHUNE-COOKMAN COLLEGE