276
CXUS55 KBOI 011740
CLMBOI

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
1140 AM MDT WED OCT 01 2025

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

...THE BOISE ID CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1875 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
HIGHEST          101   09/01
LOWEST            48   09/27
AVG. MAXIMUM    83.9               80.0     3.9
AVG. MINIMUM    57.5               52.6     4.9
MEAN            70.7               66.3     4.4
DAYS MAX >= 90     5
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.93   1986
TOTALS          0.76               0.43    0.33
DAYS >= .01        4
DAYS >= .10        1
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.68   09/29 TO 09/30

DEGREE DAYS
HEATING TOTAL      7                 80     -73       38
 SINCE 7/1         7                 94     -87
COOLING TOTAL    185                119      66      191
 SINCE 1/1      1248               1034     214
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    32/220    DATE  09/10
HIGHEST GUST SPEED/DIRECTION    44/210    DATE  09/10

AVERAGE RH (PERCENT)     41


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

$$