Climatological Report (Monthly)
Issued by NWS

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
000
CXUS55 KRIW 031222
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
622 AM MDT FRI MAY 3 2019

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTHWEST WYOMING
REGIONAL AIRPORT NEAR ROCK SPRINGS FOR THE MONTH OF APRIL 2019...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 2019 WILL BE
AVAILABLE APPROXIMATELY IN 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...APRIL WAS SLIGHTLY WETTER THAN NORMAL IN ROCK SPRINGS...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN APRIL WAS 42.2
DEGREES...WHICH WAS JUST 0.6 DEGREES ABOVE NORMAL. THE WARMEST
READING OF THE MONTH WAS 70 DEGREES ON THE 20TH...AND THE COLDEST
READING WAS 18 DEGREES ON THE 29TH. NO TEMPERATURE RECORDS WERE
BROKEN.

TOTAL PRECIPITATION FOR THE MONTH WAS 1 INCH WHICH IS 110 PERCENT OF
NORMAL. THE WETTEST 24 HOUR PERIOD WAS ON THE 30TH WHEN 0.49 INCHES
FELL. THIS BROKE THE PREVIOUS RECORD OF 0.17 INCHES SET IN 1999. THE
HIGHEST WIND GUST WAS 56 MPH ON THE 28TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              79   04/23/2012
                        04/29/2007
                        04/20/1989
 LOW                2   04/02/1975
HIGHEST            70   04/20
LOWEST             18   04/29
AVG. MAXIMUM     52.9              53.7    -0.8
AVG. MINIMUM     31.5              29.4     2.1
MEAN             42.2              41.6     0.6
DAYS MAX >= 90      0
DAYS MAX <= 32      1
DAYS MIN <= 32     15
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.74   1999
 MINIMUM            T   2013
TOTALS           1.00              0.91    0.09
DAILY AVG.       0.03              0.03    0.00
DAYS >= .01        10
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.49   04/30 TO 04/30

DEGREE_DAYS
HEATING TOTAL     678               703     -25
 SINCE 7/1       7985              7532     453
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              12.8
RESULTANT WIND SPEED/DIRECTION   8/259
HIGHEST WIND SPEED/DIRECTION    46/260    DATE  04/28
HIGHEST GUST SPEED/DIRECTION    56/270    DATE  04/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     64

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

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

LOOKING AHEAD TO MAY 2019...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 59 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 33 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 69
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 42 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 1.21 INCHES.

$$


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