Climatological Report (Monthly)
Issued by NWS Boston, MA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13
000
CXUS51 KBOX 011145
CLMBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
745 AM EDT THU JUN 01 2023

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

...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             97   05/26/1880
 LOW              31   05/03/1882
HIGHEST           86   05/28                          89
LOWEST            42   05/18                          41
AVG. MAXIMUM    69.3               66.5     2.8
AVG. MINIMUM    51.0               50.3     0.7
MEAN            60.1               58.4     1.7
DAYS MAX >= 90     0                0.6    -0.6
DAYS MAX <= 32     0                0.0     0.0
DAYS MIN <= 32     0                0.0     0.0
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       13.38   1954
 MINIMUM        0.25   1944
TOTALS          2.25               3.25   -1.00
DAILY AVG.      0.07               0.10   -0.03
DAYS >= .01        9               11.8    -2.8
DAYS >= .10        3                6.8    -3.8
DAYS >= .50        1                2.0    -1.0
DAYS >= 1.00       1                0.5     0.5
GREATEST
 24 HR. TOTAL   1.94   05/20 TO 05/21

SNOWFALL (INCHES)
RECORDS
 MAXIMUM         0.9   1938
 MINIMUM         0.0   MULTI-YEARS
TOTALS           0.0                0.0     0.0
 LIQUID EQUIV   0.00
SINCE 7/1       12.4               49.2   -36.8
DAYS >= TRACE      0                0.0     0.0
DAYS >= 1.0        0                0.0     0.0
GREATEST
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    183                234     -51
 SINCE 7/1      4667               5494    -827
COOLING TOTAL     39                 29      10
 SINCE 1/1        44                 33      11
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.3
RESULTANT WIND SPEED/DIRECTION   2/270
HIGHEST WIND SPEED/DIRECTION    31/350    DATE  05/11
HIGHEST GUST SPEED/DIRECTION    41/240    DATE  05/01
                                41/330          05/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.45
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.