000
CXUS46 KOTX 021428
CLMLWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
727 AM PDT TUE APR 2 2013

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

MARCH 2013 ACROSS SOUTHEAST WASHINGTON AND THE SOUTHERN IDAHO
PANHANDLE BROUGHT TYPICAL EARLY SPRING CONDITIONS WITH SEVERAL
CHANGES IN THE WEATHER.  HOWEVER MARCH WAS DRIER THAN NORMAL
ESPECIALLY IN LEWISTON.  MARCH ENDED UP BEING THE 2ND DRIEST ON
RECORD WITH 0.27 INCHES OF PRECIPITATION...JUST SHY OF THE RECORD OF
.25 INCHES.  THIS WAS A BIG CHANGE FROM A YEAR AGO WHERE SEVERAL
LOCATIONS HAD THE WETTEST MARCH ON RECORD IN MARCH OF 2012.  ON THE
6TH AND 7TH LIGHT VALLEY RAIN AND MOUNTAIN SNOW PASSED THROUGH THE
AREA. WARMER CONDITIONS THEN FOLLOWED WITH LEWISTON REACHING 65
DEGREES ON THE 14TH.  THIS WARMTH WAS SHORT LIVED AS A STRONG COLD
FRONT BROUGHT WINDY CONDITIONS ON THE 16TH AND 17TH.  SILCOTT ISLAND
REPORTED THE STRONGEST GUST AT 58 MPH...WITH 45 MPH AT LEWISTON AND
44 MPH AT PULLMAN.  SNOW SHOWERS OCCURRED BEHIND THE FRONT ON THE
17TH AND 18TH ON THE PALOUSE AND CAMAS PRAIRIE.  OVER THE TWO DAY
PERIOD WINCHESTER RECEIVED 3.5 INCHES OF SNOW.  AFTER A BRIEF WARM
UP TO NORMAL TEMPERATURES ANOTHER STRONG COLD FRONT PASSED THROUGH
ON THE 20TH.  THUNDERSTORMS DEVELOPED ALONG THE FRONT WITH STRONG
WIND GUSTS OF 50-55 MPH.  COOL TEMPERATURES AND MAINLY HIGH
ELEVATION SNOW SHOWERS DOMINATED BEHIND THE COLD FRONT THROUGH THE
24TH.  TEMPERATURES REBOUNDED AT THE END OF THE MONTH WITH
TEMPERATURES WARMING TO ABOVE NORMAL.

RECORDS WERE SET DURING THE MONTH AT THE LEWISTON AIRPORT.  ON THE
14TH THE LOW TEMPERATURE OF 48 DEGREES TIED THE WARMEST LOW
TEMPERATURE FOR THE DATE.

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              80   03/30/1923
 LOW                2   03/05/1955
HIGHEST            73   03/31        MM      MM       72  03/09
LOWEST             22   03/23        MM      MM       23  03/07
AVG. MAXIMUM     57.5              54.9     2.6     53.2
AVG. MINIMUM     36.5              35.6     0.9     35.2
MEAN             47.0              45.3     1.7     44.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32     10               8.0     2.0        8
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.07   1931
 MINIMUM         0.25   1969
TOTALS           0.27              1.15   -0.88     3.59
DAILY AVG.       0.01              0.04   -0.03     0.12
DAYS >= .01         7              11.2    -4.2       17
DAYS >= .10         1               3.7    -2.7       11
DAYS >= .50         0               0.2    -0.2        2
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.14   03/20 TO 03/20           03/25 TO 03/26


SNOWFALL (INCHES)
RECORDS
 TOTAL            9.7   1955
TOTALS            0.0               0.7    -0.7        T
SINCE 7/1         2.6              10.5    -7.9     13.5
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.2    -0.2        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   03/31 TO 03/31           03/23 TO 03/23


DEGREE_DAYS
HEATING TOTAL     551               612     -61      637
 SINCE 7/1       3990              4467    -477     4309
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
....................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
HIGHEST WIND SPEED/DIRECTION    39/290    DATE  03/20
HIGHEST GUST SPEED/DIRECTION    52/290    DATE  03/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

$$