619  
CDUS41 KLWX 120523  
CLIBWI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
123 AM EDT TUE SEP 12 2023  
   
...............................
 
 
   
..THE BALTIMORE MD CLIMATE SUMMARY FOR SEPTEMBER 11 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 86 1:33 PM 100 1983 82 4 79  
MINIMUM 70 11:51 PM 43 1917 61 9 70  
AVERAGE 78 71 7 75  
 
PRECIPITATION (IN)  
YESTERDAY 1.00 3.42 1971 0.15 0.85 1.12  
MONTH TO DATE 2.78 1.54 1.24 2.65  
SINCE SEP 1 2.78 1.54 1.24 2.65  
SINCE JAN 1 27.68 31.32 -3.64 34.58  
 
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 13 6 7 10  
MONTH TO DATE 168 85 83 115  
SINCE SEP 1 168 85 83 115  
SINCE JAN 1 1355 1219 136 1465    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 3.3  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 55 2:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE BALTIMORE MD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2019  
MINIMUM TEMPERATURE (F) 60 43 1967  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2023.....SUNRISE 6:45 AM EDT SUNSET 7:20 PM EDT  
SEPTEMBER 13 2023.....SUNRISE 6:46 AM EDT SUNSET 7:19 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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