Climatological Report (Monthly)
Issued by NWS

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 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
000
CXUS52 KKEY 021610 CCA
CLMMTH

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE KEY WEST, FL
525 PM EDT THU OCT 1 2020

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

...THE MARATHON CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1950 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   09/25/1988
                        09/27/1987
                        09/24/1987
 LOW               66   09/22/1959
                        09/28/1954
                        09/04/1953
HIGHEST            93   09/23                         93  09/10
                        09/04                             09/07
                        09/02
LOWEST             74   09/12                         76  09/27
                                                          09/21
AVG. MAXIMUM     89.8              89.4     0.4     90.0
AVG. MINIMUM     79.8              78.5     1.3     79.5
MEAN             84.8              83.9     0.9     84.8
DAYS MAX >= 90     19              12.7     6.3       20
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        19.59   1959
 MINIMUM         0.22   1961
TOTALS          10.20              7.73    2.47     2.92
DAILY AVG.       0.34              0.26    0.08     0.10
DAYS >= .01        15                                 15
DAYS >= .10         6                                  9
DAYS >= .50         2                                  1
DAYS >= 1.00        1                                  0
GREATEST
 24 HR. TOTAL    8.13   09/12 TO 09/12

SNOWFALL (INCHES)
TOTALS            0.0                 0       0      0.0
SINCE 7/1         0.0                 0       0      0.0

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     600               568      32      599
 SINCE 1/1       4508              3954     554     4885
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.5
HIGHEST WIND SPEED/DIRECTION    29/050    DATE  09/21
HIGHEST GUST SPEED/DIRECTION    39/050    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP                0
HEAVY RAIN               12     RAIN                        8
LIGHT RAIN               18     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        0
LIGHT SNOW                0     SLEET                       0
FOG                       9     FOG W/VIS <= 1/4 MILE       1
HAZE                      3

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

$$

MARATHON DAILY RECORDS, SEPTEMBER 2020 AND YEAR-TO-DATE

RECORD                    SEP 2020   2020 YTD
======                    ========   ========
MAXIMUM TEMPERATURE           1         21
COOL MAXIMUM TEMPERATURE      1          1
WARM MINIMUM TEMPERATURE      0         25
MINIMUM TEMPERATURE           0          0
RAINFALL                      1          6


TOP 10 WARMEST MONTHLY AVERAGE TEMPERATURES FOR SEPTEMBER

RANKING    YEAR    AVERAGE (DEG F)
=======    ====    ===============
   1       1987         86.0
   2       2002         85.7
   3       2000         85.4
   4       2011         85.1
   5       1989         85.0
   6       1998         84.9
   7       2020         84.8
           2019         84.8
           2018         84.8
           2006         84.8


TOP 10 WETTEST SEPTEMBERS ON RECORD

RANKING    YEAR    TOTAL (INCHES)
=======    ====    ==============
   1       1959        19.59
   2       2010        13.71
   3       1994        13.47
   4       1953        13.16
   5       2007        12.08
   6       1956        11.88
   7       1965        10.28
   8       2020        10.20
   9       1963         9.50
  10       1991         9.40


CORRECTED MONTHLY RECORD HIGH AND LOW TEMPERATURES.

SDR/ROSS


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.
  • National Weather Service
  • WSO Pago Pago Weather Service Office
  • Pago Pago, AS
  • (684) 699-9130
  • Page Author: PPG Webmaster
  • Incorrect Region Format!
  • Web Master's E-mail:
  • Page last modified: Mar 10th, 2020 21:02 UTC