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 Climate Information of Rakhdhiansar 

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       The center receives an average annual rainfall of 1249 mm in 53 rainy days. The rainy season starts during 2nd week of July and ends in last week of October with duration of 17 weeks. The average monsoon seasonal rainfall (June to September) is 944 mm and can vary from 514 mm to 1263 mm. Peak rainfall occurs during 3rd week of July. Daytime temperature varies from 18.3° C (3rd week of January) to 39.3° C (3rd week of May), while the nighttime temperature varies from 5.8° C (3rd week of January) to 24.6° C (3rd 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 18.9 6.2 97 74 NA 9.2 NA 5.8
2 18.7 6.4 97 78 NA 18.3 NA 6.5
3 18.3 5.8 94 72 NA 11.4 NA 7.0
4 20.1 6.4 94 65 NA 7.2 NA 8.1
5 21.1 7.3 90 56 NA 13.7 NA 9.5
6 21.2 8.4 92 69 NA 8.1 NA 9.6
7 21.8 8.2 91 54 NA 13.3 NA 11.9
8 22.0 8.4 86 49 NA 11.9 NA 12.2
9 24.2 9.2 81 49 NA 11.0 NA 17.2
10 26.9 10.8 82 51 NA 10.3 NA 19.7
11 27.0 11.6 77 45 NA 15.3 NA 21.3
12 27.2 12.6 76 41 NA 44.5 NA 22.1
13 29.3 13.7 72 43 NA 10.6 NA 24.3
14 29.0 14.0 67 40 NA 23.2 NA 25.8
15 31.6 15.8 57 39 NA 11.8 NA 28.0
16 34.5 17.1 56 34 NA 2.8 NA 34.5
17 36.2 19.2 48 33 NA 4.2 NA 41.5
18 35.9 20.3 39 25 NA 5.8 NA 53.7
19 36.5 19.8 57 35 NA 13.1 NA 46.1
20 38.4 20.6 50 29 NA 2.4 NA 52.4
21 39.0 22.2 60 38 NA 3.8 NA 52.2
22 39.3 23.3 52 31 NA 3.5 NA 59.0
23 39.1 24.0 62 42 NA 6.4 NA 60.3
24 39.2 24.5 65 43 NA 19.2 NA 57.2
25 38.6 24.6 71 53 NA 14.4 NA 49.4
26 37.0 24.2 77 60 NA 33.8 NA 49.5
27 36.7 24.1 77 59 NA 51.2 NA 40.6
28 35.2 23.1 79 62 NA 71.7 NA 39.1
29 34.0 23.3 90 73 NA 103.0 NA 34.2
30 33.6 23.6 92 75 NA 77.2 NA 33.5
31 32.9 23.3 90 75 NA 111.2 NA 26.3
32 33.6 23.3 89 71 NA 82.7 NA 34.1
33 33.6 23.3 87 68 NA 60.3 NA 32.1
34 33.8 23.1 88 68 NA 88.5 NA 31.5
35 33.8 22.6 88 71 NA 51.8 NA 29.2
36 33.5 22.1 88 69 NA 70.9 NA 25.3
37 33.0 21.2 86 63 NA 35.4 NA 22.0
38 33.3 20.9 88 65 NA 14.2 NA 22.1
39 32.8 19.5 82 62 NA 37.1 NA 20.6
40 32.7 19.0 85 55 NA 2.9 NA 21.5
41 32.4 17.2 74 43 NA 1.0 NA 20.6
42 30.9 15.7 73 45 NA 9.1 NA 20.0
43 30.6 14.8 70 47 NA 1.3 NA 18.3
44 30.1 13.6 76 52 NA 0.0 NA 17.3
45 28.7 12.1 83 50 NA 1.7 NA 15.3
46 27.9 10.8 82 41 NA 2.4 NA 14.4
47 25.9 9.5 82 44 NA 2.2 NA 11.7
48 24.2 7.8 86 43 NA 3.9 NA 10.6
49 23.4 7.4 87 42 NA 0.9 NA 8.9
50 22.2 7.4 87 45 NA 4.9 NA 7.6
51 21.2 7.0 89 50 NA 5.9 NA 6.7
52 20.2 6.8 90 46 NA 12.8 NA 6.4

 

    Rainfall Statistics (Database 1987-2000)

Monthly and Annual Rainfall Normals (mm)

Parameter

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

Annual

Average

 53.8 51.6 84.8 44.3 26.8 69.7 329.5 361.2 183.8 14.8 7.3 21.2 1248.7

Lowest

0.0 1.0 0.0 0.0 5.0 17.0 44.0 76.0 25.0 0.0 0.0 0.0 835

Highest

 156.0  114.0 425.0  255.0 135.0  185.0 644.0 829.0 380.0 65.0 40.0  136.0 1824.0

SD

 45.0 30.3 114.2 70.9 36.3 59.5 204.2 196.9 102.2 21.1 12.2 40.7 305.3

CV (%)

 83.5 58.8 134.7 159.8 135.8 85.4 62.0 54.5 55.6 142.0 168.2 192.4 24.5

Seasonal Rainfall Normals (mm)

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

Average

 944.2 43.3 105.4 155.8

Lowest

514.0 0.0 53.0 34.0

Highest

 1263.0 143.0 210.0 438.0

SD

 215.4 45.6 56.1 132.7

CV (%)

 22.8 105.4 53.2 85.1

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 2.0 7.2 9.0 53.0

Lowest

21.0 0.0 3.0 3.0 48.0

Highest

 49.0 7.0 12.0 19.0 67.0

SD

 7.6 2.4 2.9 4.7 8.4

CV

 22.4 121.5 39.8 51.7 15.8

 

Weekly Rainfall Probability (%) for different amounts

WEEK Upto 10mm 20mm 30mm 40mm 50mm 75mm 100mm >100mm
1 41 25 8 0 0 0 0 0
2 58 33 33 25 16 8 8 8
3 58 33 25 25 16 0 0 0
4 50 33 16 0 0 0 0 0
5 25 16 16 16 16 16 8 8
6 41 41 25 0 0 0 0 0
7 66 58 33 8 8 0 0 0
8 66 50 25 25 8 0 0 0
9 58 33 33 8 8 8 0 0
10 50 16 8 0 0 0 0 0
11 66 41 16 16 16 16 8 8
12 75 66 41 25 16 8 8 8
13 66 50 25 0 0 0 0 0
14 50 25 8 8 8 8 8 8
15 50 33 25 8 8 8 0 0
16 33 0 0 0 0 0 0 0
17 50 16 0 0 0 0 0 0
18 41 8 8 8 0 0 0 0
19 50 25 16 16 16 8 8 0
20 33 0 0 0 0 0 0 0
21 58 16 0 0 0 0 0 0
22 41 16 0 0 0 0 0 0
23 66 25 16 8 0 0 0 0
24 50 41 41 25 25 16 8 0
25 75 75 41 8 8 0 0 0
26 66 58 41 33 33 25 16 0
27 83 75 66 50 33 33 25 16
28 91 91 91 75 66 58 33 16
29 99 91 83 83 75 66 58 50
30 91 91 75 75 58 50 33 16
31 100 91 83 83 83 66 66 41
32 99 99 83 75 66 66 58 41
33 91 91 83 50 41 33 16 16
34 91 91 75 75 75 66 41 33
35 100 91 83 58 41 33 25 25
36 83 83 75 75 75 58 50 33
37 91 83 58 50 41 16 16 16
38 58 33 25 16 8 8 8 0
39 58 41 33 33 33 16 8 8
40 8 8 8 8 0 0 0 0
41 8 0 0 0 0 0 0 0
42 41 16 16 8 8 8 0 0
43 16 8 0 0 0 0 0 0
44 0 0 0 0 0 0 0 0
45 16 8 0 0 0 0 0 0
46 0 0 0 0 0 0 0 0
47 33 8 0 0 0 0 0 0
48 16 8 8 8 0 0 0 0
49 8 8 0 0 0 0 0 0
50 8 8 0 0 0 0 0 0
51 16 16 0 0 0 0 0 0
52 33 25 25 25 16 8 8 8

 

 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 = 26*

As Late As = 32*

 STD.DEV = 1.7

 MEAN END = 45*

As Early As = 37*

As Late As = 52*

STD.DEV = 5.6

 MEAN DUR = 17*

MIN DUR = 10*

MAX DUR = 25*

STD.DEV = 5.5

MEAN CSR** = 902mm

MIN CSR** = 447mm

MAX C SR** = 1189mm

STD.DEV = 246.9mm

                    * Standard Meteorological Week          

                    ** Crop Seasonal Rainfall (CSR)

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