Mean Monthly and Annual Number of Clear Days

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.

* = less than 1/2 day

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

Arizona California Colorado Hawaii & Pacific Islands Idaho Montana Nevada New Mexico Oregon Utah Washington Wyoming

                           MEAN MONTHLY AND ANNUAL NUMBER OF CLEAR DAYS


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

ALASKA

ANCHORAGE             7    7    8    6    4    3    3    3    4    5    6    6     61
ANNETTE               4    3    4    4    4    3    3    4    4    2    3    3     40
BARROW                6m  12   14   11    3    3    4    1    1    2    6m   4m    66m
BETHEL                8   10    9    6    4    2    2    1    2    4    6    8     62
BETTLES              15   10    9    7    7    4    2    2    7    5    9    9     86
BIG DELTA             
COLD BAY              2    2    2    1    1    *    *    *    *    1    1    2     12
FAIRBANKS             9    8   10    7    4    3    3    3    4    4    7    7     69
GULKANA              15    6    9    5    3    2    4    3    6    3    5    7     67
HOMER                 8    7    6    5    4    4    3    5    5    5    6    7     65
JUNEAU                5    4    4    4    4    3    3    4    3    2    3    3     43
KING SALMON           8    7    7    4    3    1    1    1    2    4    6    6     50
KODIAK                5    6    6    4    3    3    3    4    4    6    7    6     59
KOTZEBUE             11   12   12   10    8    6    4    3    6    8    9   11    100
MCGRATH               9    9    9    7    4    2    2    2    4    4    6    8     66
NOME                 10   12   11    9    7    6    4    3    5    7    8   10     91
ST. PAUL ISLAND       2    3    3    2    1    1    1    1    1    1    1    2     18
TALKEETNA             6    8    9    5    6    1    5    3    5    6    8    5     67
VALDEZ                5    7    7    6    4    3    3    4    4    5    6    5     59
YAKUTAT               5    4    4    4    2    2    2    3    3    3    4    4     40


ARIZONA

FLAGSTAFF            12   11   12   12   15   18    9   10   16   17   15   14    162
PHOENIX              14   13   14   17   21   23   17   18   22   20   18   15    211
TUCSON               14   13   15   17   20   21   10   12   19   20   18   15    193
WINSLOW              12   12   13   15   17   20   11   12   18   19   16   14    177
YUMA                 15   15   17   21   24   25   20   22   24   23   19   17    242



CALIFORNIA

BAKERSFIELD           7    7   10   12   18   23   26   26   24   19   12    8    191
BISHOP               11   11   13   14   15   20   22   23   23   20   15   14    201
BLUE CANYON           9    8    9   10   12   18   26   25   22   17   10    9    174
EUREKA                6    5    6    6    6    7    7    6    9    8    6    6     78
FRESNO                5    8   11   14   18   23   27   26   24   20   12    7    194
LONG BEACH           12   10   11   12   10   12   18   19   15   13   13   13    159
LOS ANGELES AP       12   11   12   11   10   10   13   14   13   13   15   13    147
LOS ANGELES CITY     14   12   13   12   11   14   21   22   18   16   16   15    186
MT SHASTA CITY        9    8    8   10   12   16   25   24   21   14    9    7    164
OAKLAND               9    8   10   11   12   15   17   15   16   14   11    9    147
REDDING               8    8    8    8   11   17   25   25   22   18   11   10    172
RED BLUFF             8    8    9   11   15   19   27   25   23   16   10    7    178
SACRAMENTO            7    8   10   12   17   22   27   26   24   19   10    8    188
SANDBERG             12   10   11   13   17   23   25   26   24   20   15   12    208
SAN DIEGO            12   10   11   10    8    9   13   15   15   14   15   14    146
SAN FRANCISCO AP      9    8   10   11   14   16   21   19   18   16   11    9    160
SAN FRANCISCO CI      
SANTA BARBARA         
SANTA MARIA          13   12   13   13   14   15   17   17   16   17   15   14    176
STOCKTON              5    7   10   12   17   22   27   26   23   19    9    7    184


COLORADO

ALAMOSA              13   11   10   10    9   14    9   11   15   17   14   14    148
COLORADO SPRINGS     12    9    9    8    7   10    9   10   14   15   12   12    127
DENVER               10    8    8    7    6   10    9   10   13   13   10   11    115
GRAND JUNCTION        9    8    8    8   10   15   14   13   16   15   11   10    136
PUEBLO               12   10   10    9    9   12   11   12   15   15   12   12    139


HAWAII & PACIFIC ISLANDS

HILO                  6    5    3    1    1    2    1    2    3    3    3    5     36
HONOLULU              9    8    8    6    7    6    7    8    8    7    7    8     90
KAHULUI              13   11   11    8   10   11   11   12   12   11   11   12    131
LIHUE                 8    7    5    3    3    3    3    4    5    5    4    6     56

GUAM                  3    2    3    1    1    1    *    0    *    *    2    3     16
JOHNSTON             13   11   11    7    6    7    7    6    6    7    7   11     99
KOROR                 *    *    1    1    1    *    *    *    *    1    *    *      4
KWAJALEIN             2    3    2    2    1    1    1    1    1    1    1    2     18
MAJURO                1    1    1    1    1    *    0    1    1    1    0    1      8
PAGO PAGO             1    0    1    1    1    2    2    2    2    1    1    1     14
PONAPE                *    *    *    *    *    *    0    1    1    0    *    *      2
TRUK (CHUUK)          *    *    *    *    *    *    *    *    *    *    *    *      *
WAKE                 12   12   12   11   10   10    7    6    7    8   12   14    121
YAP                   1    1    1    1    1    *    0    *    *    0    *    1      5


IDAHO

BOISE                 4    5    6    6    8   12   20   19   17   12    6    5    120
LEWISTON              3    3    4    5    6    8   18   16   13    9    3    3     91
POCATELLO             3    4    5    6    7   12   17   16   15   12    5    3    106


MONTANA

BILLINGS              6    4    4    4    6    7   13   14   10    9    6    6     89
GLASGOW               5    5    5    5    6    7   12   12    9    8    6    5     86
GREAT FALLS           5    4    4    4    5    5   13   12   10    7    5    5     79
HAVRE                 4    5    5    4    6    6   15   14    9    8    5    5     86
HELENA                5    4    4    4    5    6   14   13   11    8    5    4     82
KALISPELL             2    2    3    4    5    6   14   12   10    6    2    2     70
MILES CITY            6    5    5    5    6    8   15   15   10   12    7    7    101
MISSOULA              2    3    3    4    5    6   15   14   10    7    2    2     75


NEVADA

ELKO                  7    6    6    6    8   13   17   18   18   14    8    8    130
ELY                   9    7    7    7    7   13   15   15   17   14   10    9    131
LAS VEGAS            14   12   14   16   18   22   20   22   22   20   16   15    210
RENO                  8    7    8    8   12   16   22   22   21   16    9    8    158
WINNEMUCCA            7    6    7    6    9   14   20   19   18   14    8    8    138


NEW MEXICO

ALBUQUERQUE          13   11   11   13   14   17   12   13   17   17   15   14    167
CLAYTON              13   11   11   12   11   13   12   15   17   18   15   14    162
ROSWELL              11   12   14   14   13   17   11   13   13   18   16   15    168


OREGON

ASTORIA               3    3    3    3    3    3    6    6    8    5    3    3     38
BURNS                 5    6    6    5    9   12   19   20   16   12    6    5    120
EUGENE                2    3    3    4    6    8   16   14   12    5    2    1     75
MEACHAM               3    3    3    4    6    9   20   18   13    8    4    3     94
MEDFORD               3    4    5    6    9   13   23   22   18   10    3    2    117
PENDLETON             2    3    5    5    8   10   19   18   15   10    4    3    101
PORTLAND              3    3    3    3    5    6   13   11   10    5    3    2     68
SALEM                 3    3    4    4    6    7   15   14   11    6    3    2     77
SEXTON SUMMIT         5    4    5    6    9   13   23   21   17   11    6    5    126


UTAH

MILFORD               9    8    9   10   11   17   16   16   18   17   11   10    151
SALT LAKE CITY        6    5    7    7    9   14   17   16   16   14    8    6    125
WENDOVER             10    9    9    8    9   14   20   19   19   16    9   10    152


WASHINGTON

OLYMPIA               2    2    3    3    4    5   10    9    8    3    2    2     52
QUILLAYUTE            3    4    4    3    3    4    6    6    8    5    3    4     51
SEATTLE-TACOMA AP     3    3    3    3    4    5   10    9    8    4    2    2     58
SEATTLE URBAN SITE    3    3    4    5    7    7   12   10    9    5    3    3     71
SPOKANE               3    3    5    4    6    7   16   15   12    8    3    3     86
STAMPEDE PASS         2    2    3    3    4    6   13   12   10    6    3    2     66
WALLA WALLA           2    4    6    8   10   12   21   21   15   11    4    2    116
YAKIMA                4    4    6    6    8   10   19   18   15    9    5    4    109


WYOMING

CASPER                7    6    6    5    6   10   14   13   13   11    7    8    107
CHEYENNE              9    7    7    6    5    9   10   10   13   13   10    9    106
LANDER                8    7    7    6    6   10   14   13   14   12    8   10    114
SHERIDAN              6    5    5    5    6    8   13   14   12   10    6    7     95