Climatological Report (Monthly)
Issued by NWS Boise, ID

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771
CXUS55 KBOI 020428
CLMBOI

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
1028 PM MDT FRI MAY 1 2015

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

...THE BOISE ID CLIMATE SUMMARY FOR THE MONTH OF APRIL 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1878 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
HIGHEST            81   04/28
LOWEST             26   04/02
AVG. MAXIMUM     63.9              62.3     1.6
AVG. MINIMUM     38.4              39.3    -0.9
MEAN             51.2              50.8     0.4
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      5
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.73   1869
TOTALS           0.60              1.23   -0.63
DAYS >= .01         5
DAYS >= .10         3
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.21   04/11 TO 04/11

SNOWFALL (INCHES)
TOTALS              T
SINCE 7/1        13.3
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   04/14 TO 04/14

DEGREE_DAYS
HEATING TOTAL     407               429     -22      431
 SINCE 7/1       4469              5224    -755
COOLING TOTAL       0                 3      -3        0
 SINCE 1/1          0                 3      -3
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
RESULTANT WIND SPEED/DIRECTION   3/304
HIGHEST WIND SPEED/DIRECTION    35/300    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    45/330    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

AVERAGE RH (PERCENT)     46


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

WITH ONLY HALF OF THE AVERAGE PRECIPITATION THIS WAS THE DRIEST
APRIL SINCE 2008.

AS IS NORMAL FOR APRIL THE WEATHER WAS CHANGEABLE...BUT PACIFIC
WEATHER SYSTEMS BROUGHT ENOUGH PRECIPITATION TO MEASURE ON ONLY 5
DAYS. MOST OF THAT FELL DURING THE FIRST HALF OF THE MONTH.

SUNSHINE WAS ABUNDANT. ONLY 5 DAYS WERE MOSTLY CLOUDY.

ALTHOUGH THUNDERSTORMS DID OCCUR IN SOUTHWEST IDAHO DURING THE
MONTH...NONE WERE OBSERVED AT THE NATIONAL WEATHER SERVICE OFFICE.
NORMALLY AT BOISE THERE IS AT LEAST ONE APRIL DAY WITH
THUNDERSTORMS.

THERE WAS NO SEVERE WEATHER...BUT ON THE 14TH ICE PELLETS ACCOMPANIED
CONVECTIVE SHOWERS...AND THERE WAS A WIND GUST OF 45 MPH FROM THE
NORTHWEST.

BREEZY NORTHWEST WINDS WERE COMMON WITH GUSTS REACHING OR EXCEEDING
25 MPH ON HALF THE DAYS. THIS IS NOT UNUSUAL FOR BOISE DURING SPRING.

TEMPERATURES VARIED WIDELY FROM A LOW OF 26 ON THE 2ND TO A HIGH OF
81 ON THE 28TH. AT THE AIRPORT LOWS FELL TO FREEZING OR BELOW ON 5
NIGHTS. THE AVERAGE TEMPERATURE FOR THE MONTH WAS VERY CLOSE TO
NORMAL.

$$



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