Climatological Report (Monthly)
Issued by NWS Boise, ID

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CXUS55 KBOI 011721
CLMBOI

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
1120 AM MDT FRI JUL 1 2016

JUNE 2016 WAS THE FOURTH WARMEST AT THE BOISE AIRPORT, BUT IT WAS 4
DEGREES COOLER THAN JUNE 2015, THE WARMEST ON RECORD. LIKE JUNE
2015, IT RANKED AMONG THE DRIEST 20 PERCENT.

NEW RECORD HIGHS WERE SET ON THE 5TH WITH 97 AND THE 8TH WITH 101.
RECORD HIGH MINIMUMS WERE SET ON THE 6TH WITH 68 AND THE 8TH WITH
69. THE LOW OF 68 ON THE 7TH TIED THE RECORD LAST EQUALED IN 1977.

THE WARMEST TIMES OF THE MONTH WERE THE FIRST 10 DAYS AND THE LAST 5
DAYS, WHEN A VERY WARM UPPER LEVEL HIGH PRESSURE RIDGE CENTERED OVER
THE SOUTHWESTERN AND CENTRAL U.S. EXTENDED ITS INFLUENCE TO OUR AREA.
BETWEEN THESE TWO WARM SPELLS, THE RIDGE COMPETED WITH A SERIES OF
THREE COLD BUT RELATIVELY DRY UPPER LEVEL TROUGHS.

THE FIRST TROUGH ARRIVED OVER THE WASHINGTON COAST FROM THE GULF OF
ALASKA ON THE 10TH, BUT IT WAS SHUNTED BY THE RIDGE INTO CANADA ON
THE 11TH AND 12TH. IT BROUGHT COOLER AIR AND GUSTY NORTHWEST WINDS
TO THE BOISE AREA, BUT SKIES REMAINED MOSTLY CLEAR.

THE SECOND TROUGH, WHICH ORIGINATED OVER THE BERING SEA, PROVIDED
BOISE WITH THE ONLY MEASURABLE PRECIPITATION OF THE MONTH ON THE
14TH, 15TH, AND 16TH. SETTLING OVER THE PACIFIC NORTHWEST COAST, IT
AFFECTED THE WEATHER AS FAR SOUTH AS NORTHERN CALIFORNIA BEFORE
FINALLY MOVING INLAND AND DISSIPATING OVER NORTHERN IDAHO ON THE
21ST.

AFTER A BRIEF INTERLUDE OF ABOVE-NORMAL TEMPERATURES, THE LAST
TROUGH, ALSO FROM THE BERING SEA, SPED ACROSS WASHINGTON AND
NORTHERN IDAHO ON THE 24TH, GIVING BOISE A BREEZY DAY WITH MOSTLY
SUNNY SKIES AND AFTERNOON TEMPERATURES IN THE LOWER 70S.

THE RIDGE RAPIDLY REBUILT OVER THE NORTHERN INTERMOUNTAIN REGION,
AND TEMPERATURES REBOUNDED, WITH HIGHS AT BOISE REACHING TRIPLE
DIGITS FROM THE 27TH THROUGH THE 29TH.

BY THE 29TH THE SOUTHWEST MONSOON WAS ALREADY UNDER WAY, AND SOME OF
THIS MOISTURE DRIFTED NORTH AND FED INTO AN UPPER LEVEL DISTURBANCE
CROSSING SOUTHEAST OREGON AND SOUTHWEST IDAHO.

DURING THE EVENING OF THE 29TH, A ROGUE THUNDERSTORM FORMED OVER
EAST-CENTRAL MALHEUR COUNTY. THE STORM CROSSED THE OWYHEES AND
DESCENDED ON THE LOWER TREASURE VALLEY, AND AROUND MIDNIGHT STRONG
GUSTY OUTFLOW WINDS BLEW INTO BOISE FROM THE WEST. A GUST OF 47 MPH
WAS MEASURED AT THE AIRPORT.

...................................

...THE BOISE ID CLIMATE SUMMARY FOR THE MONTH OF JUNE 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1875 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
HIGHEST           102   06/29
LOWEST             43   06/19
AVG. MAXIMUM     86.5              81.3     5.2
AVG. MINIMUM     57.1              53.7     3.4
MEAN             71.8              67.5     4.3
DAYS MAX >= 90     13
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.41   1941
TOTALS           0.18              0.69   -0.51
DAYS >= .01         3
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.14   06/15 TO 06/16

DEGREE_DAYS
HEATING TOTAL      37                64     -27        2
 SINCE 7/1       4713              5514    -801
COOLING TOTAL     247               139     108      338
 SINCE 1/1        278               183      95
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
RESULTANT WIND SPEED/DIRECTION   3/317
HIGHEST WIND SPEED/DIRECTION    33/260    DATE  06/29
HIGHEST GUST SPEED/DIRECTION    47/250    DATE  06/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

AVERAGE RH (PERCENT)     35


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.