878  
CXUS53 KOAX 091344  
CLMOFK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE OMAHA NEBRASKA  
844 AM CDT TUE OCT 9 2018  
   
...............................
 
 
   
..THE NORFOLK CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1888 TO 2018  
 
WEATHER OBSERVED NORMAL DEPART  
VALUE DATE(S) VALUE FROM  
NORMAL    
............................................
 
 
TEMPERATURE (F)  
HIGHEST 95 09/17  
LOWEST 37 09/28  
AVG. MAXIMUM 76.0 76.5 -0.5  
AVG. MINIMUM 56.1 51.1 5.0  
MEAN 66.1 63.8 2.3  
DAYS MAX >= 90 4  
DAYS MAX <= 32 0  
DAYS MIN <= 32 0  
DAYS MIN <= 0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 8.52 1901  
MINIMUM 0.10 1892  
TOTALS 3.38 2.69 0.69  
DAILY AVG. 0.11  
DAYS >= .01 9  
DAYS >= .10 7  
DAYS >= .50 1  
DAYS >= 1.00 1  
GREATEST  
24 HR. TOTAL 1.90 09/04 TO 09/04  
 
SNOWFALL (INCHES)  
RECORDS  
TOTAL 1.1 1985  
TOTALS 0.0 T  
SINCE 7/1 0.0  
SNOWDEPTH AVG. 0 MM MM  
DAYS >= 1.0 0  
GREATEST  
SNOW DEPTH 0 MM  
24 HR TOTAL 0.0 09/30 TO 09/30  
 
DEGREE_DAYS  
HEATING TOTAL 116 126 -10  
SINCE 7/1 128 142 -14  
COOLING TOTAL 157 90 67  
SINCE 1/1 1080 906 174    
.............................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 9.8  
HIGHEST WIND SPEED/DIRECTION 29/170 DATE 09/11  
HIGHEST GUST SPEED/DIRECTION 40/350 DATE 09/21  
 
SKY COVER  
AVERAGE SKY COVER 0.40  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 4 MIXED PRECIP 0  
RAIN 13 HAIL 0  
FREEZING RAIN 0 SNOW 0  
LT FREEZING RAIN 0 SLEET 0  
HEAVY SNOW 0 FOG W/VIS <= 1/4 MILE 0  
LIGHT SNOW 0 HAZE 2  
FOG 11  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
>= INDICATES GREATER THAN OR EQUAL TO.  
<= INDICATES LESS THAN OR EQUAL TO.  
 

 
 
...SEPTEMBER WAS SLIGHTLY WARMER AND WETTER THAN AVERAGE IN NORFOLK...  
 
OVERALL, TEMPERATURES WERE SLIGHTLY WARMER THAN AVERAGE, WITH A MEAN  
TEMPERATURE OF 66.1 DEGREES, OR 2.3 DEGREES ABOVE AVERAGE. THE AVERAGE HIGH  
TEMPERATURE FOR THE MONTH WAS 76.0 DEGRESS, OR 0.5 DEGREES BELOW NORMAL.  
THE AVERAGE LOW TEMPERATURE WAS 56.1 DEGREES, OR 5.0 DEGREES ABOVE NORMAL.  
 
THE MONTH BEGAN WITH A WEEK OF BELOW AVERAGE TEMPERATURES, WITH THE EXCEPTION  
OF THE 1ST OF THE MONTH WHICH WAS ABOVE AGERAGE. THE 2ND THROUGH THE 9TH SAW  
COOLER TEMPERATURES, WHILE THE 10TH THROUGH THE 20TH SAW TEMPERATURES THAT  
WERE ABOVE AVERAGE. THE MONTH ENDED WITH VARIABLE TEMPERATURES; FOR THE MOST  
PART HOWEVER, TEMPERATURES WERE SLIGHTLY BELOW AVERAGE. NO RECORDS WERE BROKEN  
IN THE MONTH OF SEPTEMBER AT NORFOLK.  
 
THIS MONTH SAW ABOVE AVERAGE RAINFALL, WITH A MAJORITY OF IT OCCURING DURING  
THE EARLY AND LATE PARTS OF THE MONTH. THE MIDDLE OF THE MONTH SAW A PERIOD  
WITH SLIGHTLY DRIER CONDITIONS. 3.38 INCHES OF RAIN FELL DURING SEPTEMBER,  
WHICH WAS 0.69 INCHES ABOVE NORMAL. FOR THE YEAR, NORFOLK HAS SEEN 26.29 INCHES,  
WHICH IS 3.07 INCHES ABOVE NORMAL.  
 
DURING SEPTEMBER, 13 DAYS HAD PRECIPITATION, AND 4 DAYS HAD THUNDER. SEVEN DAYS  
DURING THE MONTH RECORDED GREATER THAN OR EQUAL TO 0.10 INCHES OF RAIN, AND ONE  
DAY SAW RAINFAL GREATER THAN OR EQUAL TO ONE INCH. SEPTEMBER 4TH RECORDED 1.90  
INCHES OF RAIN, WHICH IS THE GREATEST AMOUNT THAT OCCURED IN 24 HOURS.  
 
THE HIGHEST WINDS IN SEPTEMBER OCCURED ON SEPTEMBER 21ST, REACHING 40 MPH.  
 
 

 
 
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