Average Number of Cloudy Days - Western Regional Climate Center (WRCC)
This data is based on daylight hours only.  A clear day denotes zero to 3/10 average
sky cover.  Partly cloudy is 4/10 to 7/10 tenths.  Cloudy is 8/10 to 10/10 tenths.
There is no table for partly cloudy.  Simply add number of clear days with cloudy days
and subtract from total days in the month to get number of partly cloudy days.  Annual 
totals may differ from the 12 month totals due to rounding.

(m) - In Barrow, the sun sets below the horizon on November 18 and does not rise again
until January 24.  Data is incomplete between these dates.

For more information click here on Western States, Alaska  or Hawaii and Pacific Islands


Click on a State: Arizona, California, Colorado, Hawaii & Pacific Islands, Idaho, Montana,
Nevada, New Mexico, Oregon, Utah, Washington, Wyoming


                          MEAN MONTHLY AND ANNUAL NUMBER OF CLOUDY DAYS


                    JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC   ANNUAL
ALASKA

ANCHORAGE            19   18   18   18   20   20   22   21   21   21   20   21    239
ANNETTE              23   21   23   21   21   21   21   21   21   25   24   24    265
BARROW                3m  11   10   12   23   21   21   26   26   25   11m   0m   187m
BETHEL               18   14   16   17   20   21   24   26   23   22   19   18    239
BETTLES              11   14   16   13   13   13   19   21   16   21   14   15    187
BIG DELTA             
COLD BAY             23   22   23   26   27   27   28   29   26   25   23   24    304
FAIRBANKS            16   14   14   16   15   17   19   21   20   22   18   18    210
GULKANA               
HOMER                19   17   19   18   20   18   19   18   18   21   19   18    225
JUNEAU               23   21   23   22   23   22   23   22   24   27   24   25    280
KING SALMON          18   16   18   20   22   24   25   25   22   20   19   19    245
KODIAK               20   18   18   19   22   21   22   20   19   17   16   19    232
KOTZEBUE             16   13   13   13   14   14   19   21   19   19   17   16    193
MCGRATH              17   15   15   15   19   19   21   23   22   22   19   19    226
NOME                 17   13   14   14   16   15   20   22   20   18   18   17    205
ST. PAUL ISLAND      23   20   21   22   26   26   28   28   24   23   22   24    287
TALKEETNA            21   16   18   18   19   17   19   17   19   20   19   22    225
VALDEZ               22   20   19   19   21   21   23   21   22   23   20   24    254
YAKUTAT              22   21   22   21   24   24   25   24   24   25   23   24    278


ARIZONA

FLAGSTAFF            12   11   12    9    7    4    9    8    5    7    8   11    102
PHOENIX              10    9    8    6    3    2    4    4    3    4    6    9     70
TUCSON               10    9    9    6    4    3    9    7    4    5    6   10     81
WINSLOW              12   10    9    7    5    4    8    6    4    6    8   10     89
YUMA                  9    6    6    4    2    1    3    3    2    3    5    8     52



CALIFORNIA

BAKERSFIELD          17   13   12    9    5    2    1    1    2    5   10   16     93
BISHOP               12   10    9    7    6    3    2    2    2    5    7    9     75
BLUE CANYON          17   15   17   13   11    6    1    2    3    9   15   17    126
EUREKA               19   17   18   16   15   13   14   15   13   14   17   18    188
FRESNO               19   13   12    8    5    2    1    1    2    5   11   18     98
LONG BEACH           11   11   11    8    8    6    2    2    4    7    8   10     87
LOS ANGELES AP       11   11   11    9   10    9    5    5    6    8    8   10    103
LOS ANGELES CITY      9    9    9    8    8    6    1    1    3    6    6    8     73
MT SHASTA CITY       16   13   15   10   10    7    2    2    4    9   13   16    118
OAKLAND              15   13   12    9    8    5    3    3    4    8   11   14    105
REDDING              18   14   17   13   10    5    1    2    3    6   11   16    116
RED BLUFF            17   15   15   11    9    5    1    2    3    8   15   18    119
SACRAMENTO           19   13   12    8    5    2    1    1    2    6   12   17    100
SANDBERG             11   11   11    8    6    2    1    1    2    5    8   12     78
SAN DIEGO            11   10   11   10   11    9    5    4    6    8    7   10    102
SAN FRANCISCO AP     15   13   13   10    8    5    3    3    4    7   11   14    105
SAN FRANCISCO CI      
SANTA BARBARA         
SANTA MARIA          11   10   10    8    7    4    2    2    4    5    8   10     80
STOCKTON             19   15   13   10    5    3    1    1    2    6   12   18    104


COLORADO

ALAMOSA               8    7    9    8    8    4    6    6    5    6    7    7     81
COLORADO SPRINGS     11   11   13   12   12    8    7    8    7    8   10   11    118
DENVER               11   11   13   13   13    8    6    8    8    9   10   10    120
GRAND JUNCTION       15   13   15   13   11    6    6    6    5    8   12   13    122
PUEBLO               10   11   12   11   11    7    5    7    6    8    9   10    107


HAWAII & PACIFIC ISLANDS

HILO                 13   13   18   20   19   17   18   17   15   16   17   15    197
HONOLULU              9    8    9   10    9    6    5    6    6    8    9    9     94
KAHULUI               8    7    9   10    8    6    5    5    6    8    8    8     90
LIHUE                10    9   12   13   11    9   10    9    7   10   12   11    125

GUAM                 16   17   14   15   15   19   23   26   23   21   15   16    219
JOHNSTON              4    4    6   11   12    8    9   11   11   12   12    7    107
KOROR                24   22   22   20   22   25   26   26   24   23   22   25    283
KWAJALEIN            22   20   22   24   25   24   25   24   24   26   23   24    282
MAJURO               24   20   23   23   24   23   24   22   23   23   23   24    276
PAGO PAGO            21   19   19   18   17   15   15   14   13   17   19   20    206
PONAPE               26   23   26   25   26   25   24   24   24   24   23   25    296
TRUK (CHUUK)         27   25   27   26   27   26   27   27   26   27   26   28    319
WAKE                  5    5    5    6    6    7   13   14   12   10    5    4     94
YAP                  23   20   22   20   20   24   26   28   25   24   22   22    275


IDAHO

BOISE                22   17   18   15   13    8    3    4    6   11   18   20    155
LEWISTON             24   21   21   19   16   13    6    7    9   15   22   24    196
POCATELLO            22   18   18   16   14    9    5    5    7   11   18   21    162


MONTANA

BILLINGS             18   16   18   17   15   11    6    7   10   13   17   17    164
GLASGOW              18   16   17   16   15   11    7    8   11   15   17   18    168
GREAT FALLS          19   18   18   18   17   14    6    8   11   15   18   18    180
HAVRE                20   17   18   17   15   13    6    7   13   16   18   19    179
HELENA               20   17   19   18   16   13    6    7   11   14   18   20    179
KALISPELL            25   21   21   20   17   14    7    9   12   18   23   26    214
MILES CITY           17   15   18   17   15   12    4    5   10   11   16   16    156
MISSOULA             24   21   22   20   17   14    6    8   11   17   23   25    208


NEVADA

ELKO                 17   15   17   15   13    7    4    4    5    9   15   16    136
ELY                  15   14   15   13   12    6    5    5    5    9   12   14    125
LAS VEGAS            11    9    9    7    5    3    3    3    2    4    7   10     73
RENO                 16   14   14   12   10    6    3    3    4    8   13   15    114
WINNEMUCCA           18   16   17   14   12    8    4    4    5    9   15   16    138


NEW MEXICO

ALBUQUERQUE          10   10   10    8    7    4    5    5    6    6    7   10     87
CLAYTON              12   10   11   10   10    6    7    6    7    7    9   10    104
ROSWELL              11    8    8    7    6    3    5    6    9    7    7    7     84


OREGON

ASTORIA              24   22   23   21   20   19   15   15   14   19   22   24    239
BURNS                18   17   18   15   12    9    5    3    6   12   17   18    151
EUGENE               25   21   22   19   17   14    7    8    9   17   23   26    209
MEACHAM              25   22   22   20   17   13    5    7   10   17   22   24    204
MEDFORD              24   19   19   16   13    9    3    4    6   12   21   25    169
PENDLETON            24   20   19   15   13   10    4    5    7   13   20   24    173
PORTLAND             24   21   23   21   19   16   10   10   12   18   23   26    222
SALEM                24   21   21   19   18   15    8    9   10   17   22   25    208
SEXTON SUMMIT        21   20   21   17   14   10    3    4    7   14   20   22    172


UTAH

MILFORD              14   12   13   11    9    5    5    5    4    7   11   13    111
SALT LAKE CITY       19   16   16   14   12    6    4    4    5    9   15   18    139
WENDOVER             15   12   13   14   11    7    4    4    5    8   15   13    121


WASHINGTON

OLYMPIA              25   22   22   20   18   16   11   12   13   20   23   26    228
QUILLAYUTE           24   21   22   21   20   20   16   16   14   19   22   24    239
SEATTLE-TACOMA AP    24   21   22   20   18   17   11   12   13   19   23   25    226
SEATTLE URBAN SITE   23   19   19   16   14   15    9   11   13   18   21   23    201
SPOKANE              24   20   19   17   15   12    6    7    9   15   22   24    191
STAMPEDE PASS        26   23   24   22   20   19   10   11   14   20   25   27    241
WALLA WALLA          23   19   16   13   11    8    3    4    7   13   20   25    162
YAKIMA               22   18   17   14   12   10    4    6    7   13   19   22    164


WYOMING

CASPER               16   14   16   16   15    9    6    7    8   12   14   15    147
CHEYENNE             13   12   14   14   14    9    7    8    9    9   11   13    133
LANDER               13   12   14   14   14    9    6    6    8   10   12   12    129
SHERIDAN             17   15   17   16   15   11    6    6    9   12   16   17    157