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 Climate Information of FAIZABAD

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        The center receives an average annual rainfall of 920 mm in 41 rainy days. The rainy season starts during 1st week of July and ends in 2nd week of October with duration of 14 weeks. The average monsoon seasonal rainfall (June to September) is 805 mm and can vary from 389 mm to 1338 mm. Peak rainfall occurs during 2nd week of July. Daytime temperature varies from 20.4o C (3rd week of January) to 39.6o C (last week of May), while the nighttime temperature varies from 6.7o C (3rd week of January) to 26.3o C (2nd week of June).

 

Average Weekly Weather Data 

WEEK MAXT (°C)  MINT (°C)  RH-I   (%)  RH-II (%)  WS (kmph)  RF (mm/week)  SSH   (hrs)  EVP (mm/week)
1 20.9 7.4 91 60 2.0 2.3 4.6 11.4
2 21.0 7.6 91 60 2.1 4.2 4.4 12.4
3 20.4 6.7 91 57 2.5 4.9 5.9 13.5
4 22.6 7.0 89 49 2.9 0.7 7.7 18.2
5 23.6 8.2 89 52 2.5 2.3 7.6 16.0
6 24.7 9.1 90 51 2.7 4.1 7.6 18.8
7 25.7 9.7 89 48 2.7 2.3 8.5 21.6
8 26.3 10.2 86 44 3.5 3.3 9.3 25.3
9 27.5 11.3 83 40 3.6 2.4 8.6 26.1
10 29.7 12.2 82 39 4.0 0.9 9.0 30.1
11 31.3 13.9 80 39 4.6 1.2 8.6 37.1
12 32.5 14.8 77 35 5.1 1.8 9.0 37.2
13 33.9 15.8 71 34 4.9 19.0 9.4 40.8
14 35.5 16.8 66 29 5.5 0.6 9.2 46.6
15 37.1 18.9 59 29 6.1 0.4 9.3 54.1
16 38.5 20.0 61 30 6.0 0.4 9.3 58.2
17 38.8 21.9 62 33 6.7 0.3 9.9 62.9
18 38.9 23.2 65 34 6.0 1.9 10.1 60.4
19 39.0 23.5 62 35 7.0 2.3 9.8 64.3
20 38.5 24.1 63 37 7.0 5.6 9.5 60.6
21 39.6 25.2 63 36 7.1 2.5 9.2 61.5
22 39.6 25.3 66 40 6.6 8.6 9.0 58.9
23 38.9 25.7 67 41 7.6 19.3 8.4 51.6
24 37.8 26.3 74 49 7.0 16.3 8.0 51.2
25 35.8 25.9 79 59 5.7 37.0 6.0 42.2
26 34.8 26.3 82 64 4.8 51.6 6.1 38.1
27 34.9 26.1 83 65 4.3 34.4 6.5 38.9
28 33.0 25.7 86 72 3.7 94.0 5.7 34.4
29 32.8 25.7 87 72 4.5 53.9 6.3 33.9
30 33.0 25.7 86 71 3.8 53.2 6.4 31.5
31 32.7 25.7 87 71 3.9 52.7 6.7 31.3
32 32.8 25.6 88 73 4.0 61.2 5.7 28.8
33 32.3 25.3 90 76 3.0 73.3 4.5 29.4
34 32.4 25.3 89 76 3.4 46.3 4.7 31.7
35 32.7 25.1 88 74 3.1 37.3 5.1 33.4
36 32.1 24.8 90 76 3.4 65.7 4.0 28.6
37 32.0 24.7 90 75 3.1 67.9 5.4 29.5
38 32.6 24.4 90 72 2.9 29.3 6.3 29.5
39 32.4 23.7 89 67 2.7 9.0 6.5 28.4
40 32.3 22.4 89 66 2.5 17.4 6.6 28.6
41 32.5 21.2 87 60 1.9 13.1 8.1 30.0
42 31.9 18.8 88 55 1.8 11.3 8.4 29.6
43 31.5 17.3 87 52 1.7 0.8 7.5 26.8
44 30.8 16.0 85 48 1.7 0.6 8.2 25.7
45 29.9 14.9 87 50 1.7 1.1 8.1 24.5
46 28.9 13.4 85 48 1.6 0.4 7.8 22.3
47 27.7 12.1 88 45 1.4 1.4 6.5 19.4
48 26.4 10.4 87 49 1.5 0.7 6.6 17.4
49 25.5 8.9 87 46 1.5 0.4 7.1 16.3
50 24.5 8.2 88 47 1.8 0.5 7.8 17.2
51 24.0 7.8 90 48 1.8 3.3 6.8 14.7
52 23.1 7.9 91 54 1.8 1.1 6.0 13.2

     

    Rainfall Statistics (Database 1986-2000)

Monthly and Annual Rainfall Normals (mm)

Parameter

 Jan Feb Mar Apr May June Jul Aug Sep Oct Nov Dec

Annual

Average

 11.4 11.4 7.8 24.1 14.3 121.1 260.1 244.9 178.9 38.5 1.9 5.3 919.7

Lowest

0 0  0.0  0.0  0.0 33 2 47 56 0 0 0 611

Highest

 68 31 25 315 44 252 527 486 351 172 18 51 1540

SD

 18.1 10.9 9.3 83.8 15.4 68.8 168.1 114.8 90.7 50.7 4.8 13.8 287.4

CV (%)

 158.6 95.7 119.0 348.1 107.9 56.8 64.6 46.9 50.7 131.7 258.5 260.9 31.3

Seasonal Rainfall Normals (mm)

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

Average

 805.1 45.6 22.9 46.1

Lowest

389 0 2 0

Highest

 1338 190 99 335

SD

 254.1 55.1 24.5 85.6

CV (%)

 31.6 120.8 107.3 185.5

Normal Rainy Days

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

ANNUAL (Jan-Dec)

Average

 35.0 1.0 1.8 2.0 41.0

Lowest

25 0 0 0 28

Highest

 45 5 5 6 53

SD

 7.4 1.7 1.4 2.2 10.1

CV

 21.0 168.5 79.7 111.8 24.6

 

 Weekly Rainfall Probability (%) for different amounts

WEEK Upto 10mm 20mm 30mm 40mm 50mm 75mm 100mm >100mm
1 14 7 0 0 0 0 0 0
2 21 21 0 0 0 0 0 0
3 14 7 7 7 7 7 0 0
4 0 0 0 0 0 0 0 0
5 14 7 0 0 0 0 0 0
6 28 21 7 0 0 0 0 0
7 14 7 0 0 0 0 0 0
8 14 7 7 0 0 0 0 0
9 35 14 0 0 0 0 0 0
10 21 0 0 0 0 0 0 0
11 14 7 0 0 0 0 0 0
12 28 7 0 0 0 0 0 0
13 21 14 7 7 7 7 7 7
14 7 0 0 0 0 0 0 0
15 0 0 0 0 0 0 0 0
16 0 0 0 0 0 0 0 0
17 0 0 0 0 0 0 0 0
18 7 0 0 0 0 0 0 0
19 14 7 7 7 0 0 0 0
20 35 21 7 0 0 0 0 0
21 14 14 14 0 0 0 0 0
22 28 28 7 0 0 0 0 0
23 42 28 14 14 14 14 14 14
24 57 57 42 21 14 7 0 0
25 78 64 42 42 35 21 14 0
26 85 85 50 42 35 28 14 14
27 71 57 50 35 28 28 14 14
28 92 78 71 71 64 64 64 42
29 71 71 64 64 64 57 35 7
30 85 85 71 57 57 50 28 21
31 85 78 78 71 35 35 28 21
32 100 92 78 64 50 42 21 21
33 92 85 85 78 78 71 57 35
34 92 92 71 57 50 42 35 0
35 85 64 57 42 35 28 7 0
36 85 64 57 50 42 42 28 21
37 92 85 64 64 57 57 35 35
38 64 57 28 28 28 14 7 0
39 35 14 14 14 7 7 0 0
40 35 28 28 21 21 21 7 7
41 28 14 14 7 7 7 7 7
42 21 14 7 7 7 0 0 0
43 0 0 0 0 0 0 0 0
44 0 0 0 0 0 0 0 0
45 7 0 0 0 0 0 0 0
46 0 0 0 0 0 0 0 0
47 7 7 0 0 0 0 0 0
48 0 0 0 0 0 0 0 0
49 7 0 0 0 0 0 0 0
50 0 0 0 0 0 0 0 0
51 7 7 7 7 7 7 0 0
52 7 7 0 0 0 0 0 0

 

 Weekly Rainfall values at different Probability levels

 WEEK

PRECIPITATION (mm) FOR THE PROBABILITIES(%)
90 75 50 25 10
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ANN          

 

  Crop Season Rainfall Characteristics

Mean start, end, duration and rainfall during the season

 MEAN START = 27*

As Early As = 25*

As Late As = 31*

 STD.DEV = 1.7

 MEAN END = 42*

As Early As = 37*

As Late As = 52*

STD.DEV = 4.9

 MEAN DUR = 15*

MIN DUR = 6*

MAX DUR = 26*

STD.DEV = 5.2

MEAN CSR** = 774mm

MIN CSR** = 420mm

MAX CSR** = 1280mm

STD.DEV = 254.6mm

                    * Standard Meteorological Week          

                    ** Crop Season Rainfall (CSR)

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