WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA

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104
CXUS51 KLWX 260815
CF6DCA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON NATIONAL DC
                                          MONTH:     APRIL
                                          YEAR:      2025
                                          LATITUDE:   38 50 N
                                          LONGITUDE:  77  2 W

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  61  46  54   1  11   0    T  0.0    M 13.0 31 330   M    M   3        43 330
 2  61  46  54   1  11   0 0.00  0.0    0 10.1 20 130   M    M   8        26 130
 3  81  55  68  14   0   3    T  0.0    M 10.0 24 220   M    M   9 1      35 220
 4  77  64  71  17   0   6 0.04  0.0    0  8.1 21 360   M    M  10 3      33 320
 5  81  60  71  17   0   6    T  0.0    0  6.7 16  50   M    M   9        19  40
 6  65  55  60   5   5   0 0.01  0.0    0  8.3 23 360   M    M   9 8      30 330
 7  56  46  51  -4  14   0 0.79  0.0    0  9.1 21  30   M    M  10 1      26  40
 8  51  38  45 -11  20   0 0.00  0.0    0 15.6 28 310   M    M   4        46 330
 9  55  34  45 -11  20   0 0.00  0.0    0  8.0 16 160   M    M   2        19 170
10  61  47  54  -2  11   0    T  0.0    0 11.2 20 170   M    M  10        26 180
11  50  48  49  -8  16   0 1.42  0.0    0 12.9 20 360   M    M  10 1      27  30
12  55  46  51  -6  14   0 0.09  0.0    0 13.3 21 350   M    M  10        27 350
13  64  49  57   0   8   0 0.00  0.0    0 11.4 22 330   M    M   6        29 320
14  74  50  62   4   3   0 0.07  0.0    0  6.4 13 190   M    M   8 3      16 190
15  71  53  62   4   3   0 0.01  0.0    0 14.7 37 320   M    M   8        52 320
16  63  49  56  -2   9   0 0.00  0.0    0 13.9 25 270   M    M   5        37 300
17  67  44  56  -3   9   0 0.00  0.0    0  6.8 17 330   M    M   2        30 300
18  81  49  65   6   0   0 0.00  0.0    0 13.2 25 200   M    M   6        37 200
19  83  67  75  15   0  10 0.00  0.0    M 11.8 20 210   M    M   9        28 220
20  78  62  70  10   0   5 0.00  0.0    M  8.6 20 320   M    M   9        26 330
21  77  59  68   8   0   3    T  0.0    0  6.0 14 140   M    M   8        17 140
22  83  63  73  12   0   8 0.00  0.0    0  7.4 17 340   M    M   8        23 340
23  80  56  68   7   0   3 0.00  0.0    0  6.0 15  30   M    M   6        24  30
24  79  56  68   7   0   3 0.00  0.0    0  7.6 13 170   M    M   7        18 140
25  80  57  69   7   0   4 0.04  0.0    0  8.3 15 180   M    M   7        22 180
================================================================================
SM 1734 1299       154  51  2.47  0.0    248.4          M      183
================================================================================
AV 69.4 52.0                               9.9 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->    37 320                 52 320
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:   WASHINGTON NATIONAL DC
                                          MONTH:     APRIL
                                          YEAR:      2025
                                          LATITUDE:   38 50 N
                                          LONGITUDE:  77  2 W

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16

AVERAGE MONTHLY: 60.7   TOTAL FOR MONTH:   2.47    1 = FOG OR MIST
DPTR FM NORMAL:   3.3   DPTR FM NORMAL:   -0.15    2 = FOG REDUCING VISIBILITY
HIGHEST:    83 ON 22,19  GRTST 24HR  1.51 ON 11-12      TO 1/4 MILE OR LESS
LOWEST:     34 ON  9                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   0.0 INCH    5 = HAIL
                        GRTST 24HR  0.0            6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  0            7 = DUSTSTORM OR SANDSTORM:
                                                       VSBY 1/2 MILE OR LESS
                                                   8 = SMOKE OR HAZE
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW
                                                   X = TORNADO
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:   8
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   154    CLEAR  (SCALE 0-3)   3
DPTR FM NORMAL   -61    PTCLDY (SCALE 4-7)   9
TOTAL FM JUL 1  3245    CLOUDY (SCALE 8-10) 13
DPTR FM NORMAL  -437

[CDD (BASE 65) ]
TOTAL THIS MO.    51
DPTR FM NORMAL    29    [PRESSURE DATA]
TOTAL FM JAN 1    76    HIGHEST SLP M ON M
DPTR FM NORMAL    51    LOWEST  SLP 29.57 ON 15

[REMARKS]