646
CDUS45 KBOI 180931
CLITWF
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
331 AM MDT MON MAY 18 2026
...............................
..THE TWIN FALLS ID CLIMATE SUMMARY FOR MAY 17 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1997 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 56 408 PM 90 2008 69 -13 55
MINIMUM 36 339 AM 30 2011 43 -7 40
AVERAGE 46 56 -10 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.34 2019 0.05 -0.05 0.26
MONTH TO DATE T 0.79 -0.79 0.55
SINCE OCT 1 5.40 7.35 -1.95 6.13
SINCE JAN 1 3.20 4.53 -1.33 3.34
DEGREE DAYS
HEATING
YESTERDAY 19 10 9 17
MONTH TO DATE 102 202 -100 143
SINCE MAR 1 1074 1503 -429 1274
SINCE JUL 1 4689 6168 -1479 5469
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 16 0 16 16
SINCE MAR 1 17 0 17 16
SINCE JAN 1 17 0 17 16
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WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 11.9
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 59 500 AM
LOWEST 23 300 PM
AVERAGE 41
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THE TWIN FALLS ID CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 93 2009
MINIMUM TEMPERATURE (F) 43 28 2017
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 613 AM MDT SUNSET 856 PM MDT
MAY 19 2026...........SUNRISE 612 AM MDT SUNSET 857 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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