August 1998

Graphs follow the text summary!


 
 TUE, SEP 1, 1998 12:01 AM EDT
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 MONTHLY SUMMARY OF CLIMATOLOGICAL DATA - PORTSMOUTH, VIRGINIA
 Portsmouth Weather Records Service
 Portsmouth, Virginia    23702-2017
 (3 miles south / West Cradock Section)
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 Monthly summary of Local Climatological Data for Portsmouth, 
 Virginia, West Cradock Section, during the month of August 1998.
 Time is EDT.
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 D HT  DN  LT  DN  MT    DN  HDD  CDD PREC WD WS  WAS    SC WXR  TYPE/REMARKS
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 1 81  -6  70  -1  75.5  -4      10.5      N  19  5.6NE  PC BREEZY LESS HUMID 
 2 81  -7  69  -1  75.0  -4      10.0      NE 23  5.8NE  PC BREEZY PLEASANT
 3 81  -7  70  -1  75.5  -4      10.5      NE 21  6.1NE  PC BREEZY PLEASANT
 4 81  -9  68  -3  74.5  -6       9.5      NE 22  5.6NE  SU BREEZY PLEASANT
 5 83  -6  64  -7  73.5  -7       8.5      NE 18  4.9NE  PC BREEZY PLEASANT
 6 81  -6  72  +1  76.5  -3      11.5      N  18  5.6N    C MORE HUMID
 7 84  -2  75  +4  79.5  +1      14.5    T NE 16  5.1NE   C HUMID -SHRA
 8 87   0  76  +6  81.5  +3      16.5      N  16  3.4NE  PC HUMID       
 9 88   0  76  +5  82.0  +3      17.0      NE 15  1.9NE  PC HUMID DST LTG
10 91  +3  73  +2  82.0  +2      17.0 0.91 S  27  3.0SW  PC HOT SHRA TSRA(2) BR   
11 87  -1  72  +1  79.5   0      14.5      SW 16  3.6NNE PC -BR -HZ HUMID
12 88  +1  74  +4  81.0  +3      16.0      N  16  3.7NNE PC -BR FROPA HZ HUMID 
13 86   0  75  +5  80.5  +2      15.5      NE 14  3.0NNE PC HZ
14 86   0  70  -1  78.0   0      13.0      NE 16  2.2NE  PC HZ
15 84  -2  73  +3  78.5  +1      13.5 0.02 NE 16  3.0NNE PC -HZ SHRA  
16 88  +1  73  +3  80.5  +2      15.5 0.16 NE 13  0.9NNE PC TSRA SHRA BR
17 93  +5  72  +1  82.5  +3      17.5      SSW23  5.1SW  PC DST LTG
18 93  +8  75  +4  84.0  +6      19.0      SW 17  4.7SSW PC BR HZ HOT
19 80  -4  69  -1  74.5  -2       9.5      N  24  7.6N   PC FROPA
20 79  -5  60  -9  69.5  -7       4.5      N  18  3.0NE  SU PLEASANT
21 88  +4  59  -9  73.5  -2       8.5      WSW16  2.3WSW SU -BR(AM) WARMER
22 93  +8  66  -1  79.5  +4      14.5      SW 14  4.3SW  SU 
23 96 +11  70  +3  83.0  +7      18.0      SSW18  5.2SW  SU HZ HOT
24 95 +10  73  +6  84.0  +8      19.0      SW 18  5.4SSW SU -HZ HOT
25 95 +10  74  +7  84.5  +8      19.5      SW 20  4.6SW  PC HOT
26 89  +3  78 +10  83.5  +7      18.5    T NE 24  3.6NE  PC -HZ SHRA
27 82  -6  72  +4  77.0  -1      12.0 1.98 NNE63  13.4NE  C +SHRA BR WINDY
							    TROP STORM BONNIE
28 87  -1  71  +2  79.0  +1      14.0 0.46 N  35  7.3N   PC BR SHRA HZ HUMID
29 93  +6  73  +3  83.0  +5      18.0 2.53 SW 30  2.8SW  PC +TSRA HZ BR HUMID
30 85  -1  73  +5  79.0  +2      14.0 0.10 N  19         PC DST LTG SHRA BR HZ HUMIE
31 89  +3  74  +6  81.5  +5      16.5    T -  12         PC HZ BR DST LTG
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 SUMMARY OF AUGUST 1998:

 TEMPERATURE:

    Monthly mean:        High =  86.9   Low =  71.3   Mean =  79.1
    Departure < Normal:  High =  +0.4   Low =  +1.8   Mean =  +1.1

    Degree Days:            Heating =   0.0    Cooling =  436.5
    Number of Days Using:   Heating =     0    Cooling =    31

    Days with maximum temperature >= 90:  8
    Days with maximum temperature <= 32:  0
    Days with minimum temperature <= 32:  0
    Days with minimum temperature <=  0:  0

 PRECIPITATION:

     Total  month =           6.16"    Departure from Normal =  + 1.13"
     Normal month (to date) = 5.03"                              or 122%
     Average daily =          0.20"        
     Normal daily =           0.16" 
     Number of days with measurable precipitation =   7
 
     Year-to-date = 38.67" Departure =  + 5.59" or 117% of normal

     Maximum for August =  15.06" in 1992      -->  (Since
     Minimum for August =   1.33" in 1995      -->  (1976)

     Number of days with 0.01" or more:  7          Snowfall
     Number of days with 0.10" or more:  6      August total =  0.00"
     Number of days with 0.50" or more:  3      August   max =  0.00" in
     Number of days with 1.00" or more:  2                     ----

  DAILY EXTREMES:   Low  temperature =  59 on the 21st
                    High temperature =  96 on the 23rd
         Maximum daily precipitation =  2.53" on the 29th     
            Maximum 24-hour rainfall =  2.63" on the 29th-30th
         Maximum barometric pressure = 30.286" on the 20th 
         Minimum barometric pressure = 29.526" on the 27th

  WIND: 
	           Maximum wind gust = NE 63 MPH on the 27th
	
    			       NUMBER OF:

 Days Cloudy:               3        Days with thunderstorms:  3
 Days Partly Cloudy:       22             # of Thunderstorms:  4
 Days Clear/Sunny:          6 Days with some type of snowfall: 0
 Days with Fog/Ground Fog: 11
 Days with Dense Fog:       0
 Days with Frost:           0
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 YEAR-TO-DATE: (through August 31st, 1998)

 Temperatures             Degree Days        Precipitation

 Mean maximum: 72.8 (+1.8) Heating: Aqueous:  38.67" (DEP +5.59") 117%
 Mean minimum: 55.8 (+3.6)  1728.0    Maximum monthly:  7.60"/FEB.
 Mean monthly: 64.3 (+2.7) Cooling:   Minimum monthly:  3.33"/JULY
                            1557.0
 Highest:      99, July 22      
				    Snowfall:           0.00"
 Lowest:       24, January 1          Maximum daily:    0.00"
 Days with max temperature >= 90: 37  Maximum monthly:  0.00"
 Days with max temperature <= 32:  0  
 Days with min temperature <= 32: 13  Days with some type of
 Days with temperature     <=  0:  0    snowfall:       2
				      Days with measurable
 Number of:                             precipitation: 85 or 34.98%
 Days using Heating:       112
 Days using Cooling:       130        Days with thunderstorms: 23
 Days Cloudy:               43        Number of thunderstorms: 26
 Days Partly Cloudy:       150   
 Days Clear/Sunny:          50        Greatest 24-hour period
 Days with fog/ground fog: 106           rainfall: 3.86"/FEB. 4th

 Wind (Highest Gust): NNE 63 miles per hour, August 27th
 Barometer:   Highest 30.667" on January 1st
	      Lowest: 29.198" on February 4th
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METAR DENOTATIONS:

BC   Patches
BL   Blowing 
BR   Fog with visibilites > 5/8 but <=6 statute miles and below
     to 5/8 mile
DU   Dust (widespread)
DS   Duststorm
DZ   Drizzle
FC   Funnel Cloud
FC+  Tornado/waterspout
FG   Fog with visibility <= 5/8 statute miles
FU   Smoke 
FZDZ Freezing drizzle
FZRA Freezing rain
FZFG Freezing fog              
GR   Hail                            
GS   Small hail                     
HZ   Haze                            
IC   Ice crystals                    
PE   Ice pellets                                                   
PY   Spray
RA   Rain
SA   Sand                              
SS   Sandstorm                              
PO   Sand or dust whirls                              
SG   Snow granules
SH   Shower                               
SHRA Shower of rain
SHSN Shower of snow
SHPE Shower of ice pellets
SHGR Shower with hail
SHGS Shower with small hail
SM   Statute miles                              
SN   Snow
SQ   Squalls
TS   Thunderstorm 
TSGR Thunderstorm with hail
TSGS Thunderstorm with small hail
TSPE Thunderstorm with ice pellets
TSRA Thunderstorm with rain
TSSN Thunderstorm with snow
UP   Unknown precipitation
VA   Volcanic ash 
VC   Vicinity
VV   Used for obscurred sky

METAR Qualifiers: (now placed in FRONT of code)

-  Light  
+  Heavy 
DR Low drifting
M  Below (as in -x.x degrees)
MI Shallow 
PR Partial  
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PWRS DENOTATIONS: SU/CL = Clear sky; PC = Partly cloudy sky; C = 
cloudy sky; NA, not available; NR, not recorded; TEMP, temperature; 
MAX, maximum; MIN, minimum; T, trace of precipitation; INOP, 
inoperative equipment; MPH, miles per hour; DN, departure from normal; 
DEP, departure; YR, year; NORM, normal; DST LTG, distant lightning; 
FROP or FROPA, frontal passage; AM morning; AFT afternoon hours; 
EVE evening hours; PM evening hours; E estimated; 
VBL, variable wind directions; TS, tropical storm
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COLUMN DENOTATIONS:
D    Date                      PREC  Precipitation
HT   High Temperature          WS  Maximum Wind Speed (Gust)
LT   Low  Temperature          WD  Direction of Maximum Wind Gust
MT   Mean Temperature          WAS Average Wind Speed & Dominant 
                                   Direction
			       HB  High Barometer Reading (Inches)
DN   Departure from Normal     LB  Low  Barometer Reading (Inches)
			       SC  Dominant Daily Sky Cover
HDD  Heating Degree Days       WXR TYPES  Observed Weather
CDD  Cooling Degree Days                  Conditions and Remarks
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NOTES: All temperatures are in degrees fahrenheit.  All precipita-
tion measurements are in inches.  All wind speeds are in miles per 
hour.
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In the graphs below, data is only shown through the 29th.

August 1998 TempGraph
August 1998 Rain/RelHumGraph
August 1998 WindGraph
August 1998 Barometer & Wind Graph

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