weather station number     , observations since February 13, 2009
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Date / Local time
T
Po
P
Pa
U
DD
Ff
ff10
ff3
N
WW
W1
W2
Tn
Tx
Cl
Nh
H
Cm
Ch
VV
Td
RRR
tR
E
Tg
E'
sss
2025
April 18,
Friday
20
15.3
753.5
762.4
0.4
52
Wind blowing from the west-southwestLight air
(1 m/s)
  
10% or less, but not 0
    
21.2
Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.
10% or less, but not 0
1500-2000
No Altocumulus, Altostratus or Nimbostratus.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
5.5
No precipitation
12
    
19
17.0
753.2
762.1
0.3
42
Wind blowing from the south-southwestLight breeze
(2 m/s)
  
40%.
     Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.
2030%.
1500-2000
No Altocumulus, Altostratus or Nimbostratus.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
3.8
      
18
18.2
753.1
761.8
0.2
41
Wind blowing from the west-southwestLight breeze
(3 m/s)
  
40%.
     Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
40%.
1500-2000
No Altocumulus, Altostratus or Nimbostratus.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
4.5
      
17
19.5
753.1
761.8
-0.1
37
Wind blowing from the southLight breeze
(3 m/s)
  
50%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.  Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
50%.
1500-2000
No Altocumulus, Altostratus or Nimbostratus.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
4.4
      
16
21.1
752.9
761.6
-0.5
38
Wind blowing from the southLight breeze
(3 m/s)
  
40%.
     Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
2030%.
1500-2000
No Altocumulus, Altostratus or Nimbostratus.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
6.2
      
15
20.7
752.9
761.6
-0.5
37
Wind blowing from the southLight breeze
(2 m/s)
  
40%.
     Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
2030%.
1500-2000
No Altocumulus, Altostratus or Nimbostratus.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
5.6
      
14
20.6
753.2
761.9
-0.3
42
Wind blowing from the east-southeastLight breeze
(2 m/s)
  
50%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.  Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
40%.
1500-2000
Altocumulus translucidus at a single level.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
7.2
No precipitation
6
    
13
21.0
753.4
762.1
-0.1
43
Wind blowing from the southLight breeze
(3 m/s)
  
50%.
Clouds generally dissolving or becoming less developed.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.  Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
40%.
1500-2000
No Altocumulus, Altostratus or Nimbostratus.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
8.0
      
12
20.3
753.4
762.1
0.2
48
Wind blowing from the south-southeastLight breeze
(2 m/s)
  
60%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
40%.
1500-2000
Altocumulus translucidus at a single level.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
8.9
      
11
18.2
753.5
762.3
0.4
60
Wind blowing from the eastLight breeze
(2 m/s)
  
7080%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
50%.
1000-1500
Altocumulus translucidus at a single level.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
10.2
      
10
16.9
753.5
762.3
 
73
Wind blowing from the west-southwestLight breeze
(2 m/s)
  
7080%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.
50%.
1000-1500
Altocumulus translucidus at a single level.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
12.0
      
09
15.6
753.2
762.1
 
79
Wind blowing from the south-southwestLight air
(1 m/s)
  
90 or more, but not 100%
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratocumulus other than Stratocumulus cumulogenitus.
2030%.
1500-2000
Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
11.9
      
08
14.2
753.1
761.9
0.8
83
Wind blowing from the southLight air
(1 m/s)
  
60%.
State of sky on the whole unchanged.Rain.Cloud covering more than 1/2 of the sky throughout the appropriate period.
12.6
 Stratocumulus other than Stratocumulus cumulogenitus.
10% or less, but not 0
1500-2000
Altocumulus translucidus at a single level.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
11.4
14.0
12
Surface of ground moist.   
05
13.2
752.3
761.2
0.2
88
Wind blowing from the south-southwestLight air
(1 m/s)
  
100%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratocumulus other than Stratocumulus cumulogenitus.
2030%.
1000-1500
Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. 
15.0
11.3
      
02
13.0
752.1
760.9
 
98
Wind blowing from the south-southwestLight air
(1 m/s)
  
7080%.
State of sky on the whole unchanged.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratocumulus other than Stratocumulus cumulogenitus.
2030%.
1000-1500
Altocumulus translucidus at a single level.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
12.7
14.0
6
    
April 17,
Thursday
20
18.8
750.7
759.4
-1.4
58
Wind blowing from the east-southeastLight breeze
(2 m/s)
  
100%.
Rain, not freezing, continuous, slight at time of observation.Rain.Cloud covering more than 1/2 of the sky throughout the appropriate period. 
21.8
Stratocumulus other than Stratocumulus cumulogenitus.
40%.
1000-1500
Altostratus opacus or Nimbostratus. 
15.0
10.2
2.0
12
    
0