137  
CDUS41 KLWX 110533  
CLIBWI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
133 AM EDT MON SEP 11 2023  
   
...............................
 
 
   
..THE BALTIMORE MD CLIMATE SUMMARY FOR SEPTEMBER 10 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 82 2:26 PM 98 1983 82 0 83  
MINIMUM 69 1:55 AM 41 1956 61 8 60  
AVERAGE 76 71 5 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 3.72 1968 0.14 -0.08 T  
MONTH TO DATE 1.78 1.39 0.39 1.53  
SINCE SEP 1 1.78 1.39 0.39 1.53  
SINCE JAN 1 26.68 31.17 -4.49 33.46  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 11 7 4 7  
MONTH TO DATE 155 79 76 105  
SINCE SEP 1 155 79 76 105  
SINCE JAN 1 1342 1213 129 1455    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 AM  
LOWEST 67 5:00 PM  
AVERAGE 80  
   
......................................................
 
 
THE BALTIMORE MD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 100 1983  
MINIMUM TEMPERATURE (F) 61 43 1917  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2023.....SUNRISE 6:44 AM EDT SUNSET 7:22 PM EDT  
SEPTEMBER 12 2023.....SUNRISE 6:45 AM EDT SUNSET 7:20 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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