Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 020005
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
533 PM MDT MON MAY 01 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR ROCK SPRINGS FOR THE
MONTH OF APRIL 2023...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 2023 WILL BE
AVAILABLE IN APPROXIMATELY 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

...ROCK SPRINGS WAS COLDER AND MUCH DRIER THAN NORMAL IN APRIL...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN APRIL WAS 36.1 DEGREES
WHICH WAS 5.1 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE
MONTH WAS 72 DEGREES ON THE 30TH. THE COLDEST TEMPERATURE WAS 11
DEGREES ON THE 5TH AND THE 7TH. THE 5TH TIED THE 1955 RECORD. THE
6TH HAD A LOW OF 12 WHICH BROKE THE 1997 RECORD OF 13.

PRECIPITATION FOR THE MONTH WAS 0.16 INCHES...WHICH WAS JUST 18
PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 2ND-3RD WITH
0.10 INCHES.  NO PRECIPITATION RECORDS WERE BROKEN THIS MONTH. THE
HIGHEST WIND GUST WAS 63 MPH FROM THE WEST ON THE 18TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             79   04/23/2012
                       04/29/2007
                       04/20/1989
 LOW               2   04/02/1975
HIGHEST           72   04/30
LOWEST            11   04/05
                       04/07
AVG. MAXIMUM    47.4               52.8    -5.4
AVG. MINIMUM    24.9               29.7    -4.8
MEAN            36.1               41.2    -5.1
DAYS MAX >= 90     0
DAYS MAX <= 32     4
DAYS MIN <= 32    25
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.74   1999
 MINIMUM           T   2013
TOTALS          0.16               0.91   -0.75     0.39
DAILY AVG.      0.01               0.03   -0.02
DAYS >= .01        5
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.10   04/02 TO 04/03
 STORM TOTAL    0.06

SNOWFALL (INCHES)
TOTALS            MM                8.8      MM
SINCE 7/1         MM               50.9      MM
SNOWDEPTH AVG.    MM
DAYS >= 1.0       MM

DEGREE DAYS
HEATING TOTAL    860                712     148
 SINCE 7/1      7987               7463     524
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              12.1
RESULTANT WIND SPEED/DIRECTION   7/260
HIGHEST WIND SPEED/DIRECTION    46/040    DATE  04/04
HIGHEST GUST SPEED/DIRECTION    63/280    DATE  04/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.32
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                3     SNOW                       6
LIGHT SNOW               10     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

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

LOOKING AHEAD TO MAY 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 57 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 43. THE AVERAGE MONTHLY
PRECIPITATION IS 1.27 INCHES.

$$


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