National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS55 KBOI 011728
CLMBOI

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
1128 AM MDT SUN OCT 01 2023

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

...THE BOISE ID CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1875 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
HIGHEST           93   09/11
                       09/16
LOWEST            42   09/28
AVG. MAXIMUM    81.0               80.0     1.0
AVG. MINIMUM    55.4               52.6     2.8
MEAN            68.2               66.3     1.9
DAYS MAX >= 90     5
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.93   1986
TOTALS          0.45               0.43    0.02
DAYS >= .01        6
DAYS >= .10        2
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.23   09/30 TO 09/30

DEGREE DAYS
HEATING TOTAL     49                 80     -31       13
 SINCE 7/1        49                 94     -45
COOLING TOTAL    156                119      37      206
 SINCE 1/1      1322               1034     288
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    28/240    DATE  09/06
HIGHEST GUST SPEED/DIRECTION    40/220    DATE  09/06

AVERAGE RH (PERCENT)     41


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

$$