Climatological Report (Monthly)
Issued by NWS

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118
CXUS55 KRIW 011650
CLMWRL

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1032 AM MDT MON JUN 01 2026

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR WORLAND MUNICIPAL AIRPORT
FOR THE MONTH OF MAY 2026...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF MAY 2026 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

...WORLAND WAS DRIER AND WARMER THAN NORMAL IN MAY...

AVERAGE TEMPERATURE FOR WORLAND IN MAY WAS 57 DEGREES WHICH IS 2.2
DEGREES ABOVE NORMAL. THE WARMEST READING OF THE MONTH WAS 96
DEGREES ON THE 13TH. THIS BROKE THE 2001 RECORD OF 92. THE 11TH HIT
90 AND BROKE 88 DEGREES FROM 1960. THE COLDEST READING FOR THE MONTH
WAS 22 DEGREES ON THE 6TH. THIS BROKE THE 1982 RECORD OF 26. THE
19TH DROPPED TO 24 DEGREES AND BROKE THE 1966 RECORD OF 29.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.65 INCHES...WHICH IS 39
PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH WAS
ON THE 21ST WHEN 0.21 INCHES FELL. NO PRECIPITATION RECORDS WERE
BROKEN THIS MONTH. THE HIGHEST WIND GUST WAS 53 MPH FROM THE
SOUTHWEST ON THE 25TH.

...THE WORLAND WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1947 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             98   05/27/1969
 LOW              20   05/09/2002
HIGHEST           96   05/13
LOWEST            22   05/06
AVG. MAXIMUM    73.2               69.6     3.6
AVG. MINIMUM    40.8               40.0     0.8
MEAN            57.0               54.8     2.2
DAYS MAX >= 90     3
DAYS MAX <= 32     0
DAYS MIN <= 32     4
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.96   2019
 MINIMUM        0.06   1960
TOTALS          0.65               1.66   -1.01     1.61
DAILY AVG.      0.02               0.05   -0.03
DAYS >= .01        6
DAYS >= .10        4
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.21   05/21 TO 05/21
 STORM TOTAL    0.21

DEGREE DAYS
HEATING TOTAL    281                325     -44
 SINCE 7/1      5959               7853   -1894
COOLING TOTAL     39                  9      30
 SINCE 1/1        39                  9      30
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
RESULTANT WIND SPEED/DIRECTION   1/330
HIGHEST WIND SPEED/DIRECTION    39/230    DATE  05/25
HIGHEST GUST SPEED/DIRECTION    53/200    DATE  05/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.22
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     45

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

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

LOOKING AHEAD TO JUNE 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 76 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 45 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 86
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 51 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.97 INCHES.

$$