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 Climate Information of Kanpur 

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       The center receives an average annual rainfall of 898 mm in 43 rainy days. The rainy season starts during 1st week of July and ends in 3rd week of October with duration of 15 weeks. The average monsoon seasonal rainfall (June to September) is 782 mm and can vary from 245 mm to 1874 mm. Peak rainfall occurs during 2nd week of September. Daytime temperature varies from 20.3° C (1st and 2nd weeks of January) to 41.1° C (last week of May), while the nighttime temperature varies from 6.8° C (1st week of January) to 27.7° C (2nd week 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 20.3 6.8 84 61 2.8 2.8 NA 11.9
2 20.3 7.3 85 60 2.8 2.9 NA 12.1
3 20.5 6.9 84 60 3.7 1.3 NA 12.6
4 22.0 8.1 82 57 3.7 3.7 NA 15.3
5 22.3 8.6 80 56 3.8 2.8 NA 16.5
6 22.9 8.5 80 55 3.7 5.0 NA 18.9
7 24.8 10.4 77 54 3.9 2.9 NA 20.3
8 25.7 10.9 74 51 4.3 2.8 NA 24.9
9 26.7 11.9 71 49 4.4 3.4 NA 29.2
10 28.7 13.1 69 46 4.1 2.5 NA 30.7
11 30.3 14.7 67 46 4.6 2.4 NA 35.5
12 32.1 15.7 64 44 4.9 2.3 NA 40.7
13 33.7 17.3 61 40 4.8 2.3 NA 45.7
14 35.4 18.4 54 36 4.8 1.5 NA 50.6
15 37.1 20.2 52 33 5.0 1.0 NA 56.5
16 37.7 21.6 50 33 5.7 1.2 NA 58.5
17 39.5 23.4 50 33 5.6 0.3 NA 64.1
18 39.9 24.1 50 34 5.9 1.7 NA 65.5
19 39.8 25.0 52 35 6.6 3.4 NA 66.7
20 40.3 25.6 52 35 6.6 3.5 NA 70.2
21 40.6 26.5 53 36 6.5 2.5 NA 69.6
22 41.1 27.2 52 35 7.1 4.0 NA 72.5
23 40.2 27.4 55 41 7.1 7.6 NA 69.3
24 39.2 27.7 61 46 7.4 7.0 NA 64.8
25 38.0 27.6 69 56 6.9 28.4 NA 57.4
26 35.9 27.1 76 61 6.6 36.0 NA 48.9
27 35.4 27.2 76 64 6.7 47.9 NA 45.7
28 33.8 26.6 83 73 6.1 66.1 NA 36.3
29 32.9 26.3 84 74 6.1 52.5 NA 31.9
30 32.9 26.3 85 75 6.4 61.4 NA 30.4
31 32.8 26.2 86 77 5.5 58.3 NA 30.6
32 32.2 26.0 88 79 5.1 68.3 NA 29.6
33 32.4 25.8 86 77 5.1 69.6 NA 29.4
34 32.5 25.8 86 76 4.9 56.7 NA 28.8
35 32.7 25.8 83 73 4.8 41.6 NA 28.8
36 32.4 25.1 84 75 4.8 56.5 NA 27.4
37 32.1 24.6 85 75 4.6 60.4 NA 27.0
38 32.6 24.3 82 70 3.9 21.9 NA 28.1
39 32.9 23.3 80 66 3.2 23.6 NA 26.7
40 32.7 22.0 77 63 2.7 18.8 NA 27.2
41 32.7 21.0 75 58 2.6 19.5 NA 25.3
42 32.3 19.1 71 55 2.2 7.5 NA 24.3
43 31.5 17.4 70 55 2.0 0.0 NA 23.0
44 30.7 15.6 69 53 1.7 0.9 NA 19.5
45 29.4 14.0 68 52 1.9 1.8 NA 19.2
46 28.4 12.9 71 53 1.8 0.8 NA 17.8
47 27.1 11.9 72 53 2.0 1.5 NA 17.0
48 25.4 10.4 73 54 2.4 3.4 NA 15.0
49 24.3 9.1 76 55 2.2 2.4 NA 13.6
50 23.7 8.6 78 57 2.3 1.5 NA 13.4
51 22.7 8.2 81 56 2.3 0.8 NA 12.3
52 21.7 7.7 83 58 2.5 3.7 NA 13.2

 

    Rainfall Statistics (Database 1973-2002)

Monthly and Annual Rainfall Normals (mm)

Parameter

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

Annual

Average

 10.8 11.8 15.0 2.9 16.5 73.0 250.0 266.3 193.0 44.7 8.2 6.2 898.4

Lowest

0.0 0.0 0.0 0.0 0.0 0.0 4.0 30.0 26.0 0.0 0.0 0.0 383

Highest

 39.0 57.0 189.0 20.0 58.0 208.0 807.0 659.0 407.0 369.0 86.0 38.0 1985.0

SD

 11.2 16.5 38.2 5.0 17.7 62.8 193.3 155.6 128.3 81.0 19.8 8.9 337.4

CV (%)

 103.4 140.0 254.5 174.8 107.3 86.1 77.3 58.4 66.4 181.1 241.5 143.4 37.5

Seasonal Rainfall Normals (mm)

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

Average

 782.3 59.1 22.6 34.4

Lowest

245.0 0.0 0.0 1.0

Highest

 1874.0 369.0 69.0 192.0

SD

 322.1 79.4 20.5 39.4

CV (%)

 41.2 134.3 90.8 114.6

Normal Rainy Days

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

ANNUAL (Jan-Dec)

Average

 34.0 3.0 2.2 3.0 43.0

Lowest

18.0 0.0 0.0 0.0 25.0

Highest

 52.0 18.0 5.0 32.0 81.0

SD

 7.4 3.7 1.6 6.6 14.1

CV

 21.7 124.9 71.6 220.7 32.7

 

 Weekly Rainfall Probability (%) for different amounts

WEEK Upto 10mm 20mm 30mm 40mm 50mm 75mm 100mm >100mm
1 12 4 0 0 0 0 0 0
2 20 12 4 0 0 0 0 0
3 20 8 0 0 0 0 0 0
4 25 16 8 4 0 0 0 0
5 25 4 0 0 0 0 0 0
6 20 12 4 4 4 0 0 0
7 25 8 4 4 0 0 0 0
8 20 12 4 4 0 0 0 0
9 25 20 4 0 0 0 0 0
10 25 8 4 4 0 0 0 0
11 16 12 4 4 4 0 0 0
12 16 8 4 4 4 0 0 0
13 20 12 4 4 0 0 0 0
14 8 0 0 0 0 0 0 0
15 4 0 0 0 0 0 0 0
16 20 4 0 0 0 0 0 0
17 4 0 0 0 0 0 0 0
18 12 12 4 0 0 0 0 0
19 25 16 4 4 4 4 0 0
20 41 8 8 4 0 0 0 0
21 33 8 4 0 0 0 0 0
22 33 16 8 0 0 0 0 0
23 33 20 8 4 4 4 4 4
24 37 16 12 4 4 0 0 0
25 62 58 37 33 25 20 8 8
26 83 75 45 45 33 25 12 12
27 79 66 62 41 29 20 4 4
28 87 83 70 66 62 62 37 16
29 91 79 75 58 54 37 20 16
30 91 75 70 66 62 58 33 16
31 95 91 83 70 54 54 33 16
32 100 79 66 54 54 50 29 25
33 95 83 70 58 54 50 45 29
34 87 75 70 70 54 45 37 16
35 79 62 41 41 37 33 20 8
36 79 70 66 58 41 37 29 25
37 91 83 58 50 45 41 33 20
38 58 45 25 25 25 25 12 8
39 50 33 25 20 20 20 16 12
40 33 25 25 20 16 16 4 4
41 33 20 16 16 16 12 12 8
42 8 8 4 4 4 4 4 0
43 0 0 0 0 0 0 0 0
44 12 4 0 0 0 0 0 0
45 12 8 8 4 0 0 0 0
46 8 4 4 0 0 0 0 0
47 8 8 0 0 0 0 0 0
48 16 8 4 4 4 0 0 0
49 8 0 0 0 0 0 0 0
50 4 0 0 0 0 0 0 0
51 12 0 0 0 0 0 0 0
52 29 16 8 4 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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 Crop Season Rainfall Characteristics

Mean start, end, duration and rainfall during the season

 MEAN START = 28*

As Early As = 25*

As Late As = 31*

 STD.DEV = 1.7

 MEAN END = 43*

As Early As = 36*

As Late As = 52*

STD.DEV = 5.3

 MEAN DUR = 15*

MIN DUR = 6*

MAX DUR = 26*

STD.DEV = 5.1

MEAN CSR** = 782mm

MIN CSR** = 247mm

MAX CSR** = 1923mm

STD.DEV = 347.7mm

                    * Standard Meteorological Week          

                    ** Crop Season Rainfall (CSR)

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