119
CXUS55 KBOI 011817
CLMBOI
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOISE ID
1129 AM MDT THU MAY 01 2025
...............................
APRIL 2025 IN BOISE, IDAHO, SAW RELATIVELY MILD SPRING WEATHER, WITH
TEMPERATURES SLIGHTLY ABOVE THE HISTORICAL AVERAGE. THE HIGHEST
RECORDED TEMPERATURE WAS 81°F ON APRIL 10, MARKING A BRIEF WARM
SPELL DURING THE MONTH. HOWEVER, THE MONTH BEGAN WITH COOLER
CONDITIONS, AS THE LOWEST TEMPERATURE REACHED 30°F ON BOTH APRIL 3
AND APRIL 4. THE AVERAGE MAXIMUM TEMPERATURE FOR THE MONTH WAS
64.6°F, WHILE THE AVERAGE MINIMUM TEMPERATURE WAS 39.8°F, INDICATING
THAT NIGHTS REMAINED COOL, THOUGH NOT EXTREME. OVERALL, BOISE
EXPERIENCED A MEAN TEMPERATURE OF 52.2°F, WHICH WAS ABOUT 1.3°F
HIGHER THAN THE 1991–2020 AVERAGE FOR THE REGION, REFLECTING A
SLIGHTLY WARMER-THAN-USUAL SPRING.
PRECIPITATION WAS SIGNIFICANTLY BELOW NORMAL FOR THE MONTH, WITH
ONLY 0.43 INCHES RECORDED. THIS WAS A DEPARTURE OF 0.80 INCHES LESS
THAN THE TYPICAL PRECIPITATION FOR BOISE IN APRIL, INDICATING THAT
THE AREA EXPERIENCED A DRIER-THAN-USUAL SPRING. THE NUMBER OF DAYS
WITH MEASURABLE PRECIPITATION WAS RELATIVELY LOW, WITH ONLY SIX DAYS
REPORTING RAIN. OF THESE, ONLY TWO DAYS SAW RAINFALL AMOUNTS GREATER
THAN 0.10 INCHES. THE GREATEST 24-HOUR RAINFALL OCCURRED FROM MARCH
31 TO APRIL 1, WHEN BOISE RECORDED 0.28 INCHES OF RAIN. SNOWFALL WAS
ALMOST NONEXISTENT, WITH ONLY A TRACE AMOUNT REPORTED THROUGHOUT THE
MONTH, AND THERE WERE NO DAYS WITH MEASURABLE SNOW. THIS IS
CONSISTENT WITH THE SEASONAL TRANSITION FROM WINTER TO SPRING, WHERE
SNOW TYPICALLY BECOMES LESS FREQUENT.
...............................
..THE BOISE ID CLIMATE SUMMARY FOR THE MONTH OF APRIL 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 81 04/10
LOWEST 30 04/03
04/04
AVG. MAXIMUM 64.6 62.3 2.3
AVG. MINIMUM 39.8 39.6 0.2
MEAN 52.2 50.9 1.3
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 3
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.73 1869
TOTALS 0.43 1.23 -0.80
DAYS >= .01 6
DAYS >= .10 2
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.28 03/31 TO 04/01
SNOWFALL (INCHES)
TOTALS TR
SINCE 7/1 13.6
GREATEST
SNOW DEPTH 0
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 376 424 -48 391
SINCE 7/1 4732 5057 -325
COOLING TOTAL 0 3 -3 2
SINCE 1/1 0 3 -3
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 7.6
HIGHEST WIND SPEED/DIRECTION 32/320 DATE 04/17
HIGHEST GUST SPEED/DIRECTION 44/320 DATE 04/17
AVERAGE RH (PERCENT) 48
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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