000
CXUS55 KRIW 111906
CLMRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1252 PM MDT SUN JUN 11 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
MAY 2023...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF MAY 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

...RIVERTON WAS WARMER AND MUCH DRIER THAN NORMAL IN MAY...

THE AVERAGE TEMPERATURE FOR RIVERTON IN MAY WAS 57 DEGREES WHICH WAS
3.8 DEGREES ABOVE NORMAL. IT WAS THE 2ND WARMEST MAY SINCE RECORDS
STARTED IN 1996. THE WARMEST READING FOR THE MONTH WAS 81 DEGREES ON
THE 22ND. THE COLDEST READING WAS 35 DEGREES ON THE 7TH AND 8TH. NO
TEMPERATURE RECORDS WERE BROKEN.

PRECIPITATION FOR THE MONTH WAS 0.32 INCHES...WHICH IS JUST 17
PERCENT OF NORMAL. IT WAS THE 3RD DRIEST MAY ON RECORD. NO
PRECIPITATION RECORDS WERE BROKEN. THE HIGHEST WIND GUST OCCURRED ON
THE 26TH WITH 59 MPH FROM THE NORTHWEST.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             93   05/29/2003
 LOW              19   05/09/2002
HIGHEST           81   05/22
LOWEST            35   05/06
                       05/07
                       05/08
AVG. MAXIMUM    71.1               66.8     4.3
AVG. MINIMUM    42.9               39.5     3.4
MEAN            57.0               53.2     3.8
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.32   2011
 MINIMUM        0.18   2006
TOTALS          0.32               1.92   -1.60     3.09
DAILY AVG.      0.01               0.06   -0.05
DAYS >= .01        8
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.09   05/30 TO 05/30
 STORM TOTAL    0.09

SNOWFALL (INCHES)
TOTALS           0.0                 MM      MM
SINCE 7/1       87.1                 MM      MM
SNOWDEPTH AVG.     0
DAYS >= 1.0        0

DEGREE DAYS
HEATING TOTAL    240                375    -135
 SINCE 7/1      9067               7812    1255
COOLING TOTAL      0                  8      -8
 SINCE 1/1         0                  8      -8
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.9
RESULTANT WIND SPEED/DIRECTION   2/320
HIGHEST WIND SPEED/DIRECTION    44/290    DATE  05/26
HIGHEST GUST SPEED/DIRECTION    59/290    DATE  05/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.28
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     53

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

LOOKING AHEAD TO JUNE 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 73 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 45 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 84
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 52. THE AVERAGE MONTHLY
PRECIPITATION IS 0.94 INCHES.

$$