Climatological Report (Daily)
Issued by NWS

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645
CDUS46 KBOI 210121
CLIONO

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
721 PM MDT SUN SEP 20 2026

...................................

...THE ONTARIO OR CLIMATE SUMMARY FOR SEPTEMBER 20 2026...
VALID TODAY AS OF 0700 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         81    518 PM  94    1967  81      0       89
  MINIMUM         46    558 AM  27    1978  48     -2       47
  AVERAGE         64                        64      0       68

PRECIPITATION (IN)
  TODAY            0.00          1.00 2008   0.01  -0.01     0.00
  MONTH TO DATE    0.41                      0.15   0.26     0.03
  SINCE OCT 1     10.11                      9.34   0.77    12.57
  SINCE JAN 1      6.57                      6.43   0.14     7.40

DEGREE DAYS
 HEATING
  TODAY            1                         3     -2        0
  MONTH TO DATE   63                        31     32        4
  SINCE SEP 1     63                        31     32        4
  SINCE JUL 1     65                        37     28        4

 COOLING
  TODAY            0                         2     -2        3
  MONTH TO DATE   20                        85    -65      107
  SINCE SEP 1     20                        85    -65      107
  SINCE JAN 1   1042                      1083    -41     1154
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     E (90)
  AVERAGE WIND SPEED     1.9


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           600 AM
 LOWEST     29           500 PM
 AVERAGE    58

..........................................................


THE ONTARIO OR CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81        97      1966
 MINIMUM TEMPERATURE (F)   48        25      1983


SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE   733 AM MDT   SUNSET   749 PM MDT
SEPTEMBER 21 2026.....SUNRISE   734 AM MDT   SUNSET   747 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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