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 Climate Information of Hisar 

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       The center receives an average annual rainfall of 457 mm in 27 rainy days. The rainy season starts during 3rd week of July and ends in last week of September with duration of 10 weeks. The average monsoon seasonal rainfall (June to September) is 358 mm and can vary from 63 mm to 669 mm. Peak rainfall occurs during last week of July. Daytime temperature varies from 18.9° C (3rd week of January) to 41.1° C (3rd week of May), while the nighttime temperature varies from 4.3° C (3rd week of January) to 26.6° C (1st week of July).

 

Average Weekly Weather Data 

WEEK MAXT (°C)  MINT (°C)  RH-I   (%)  RH-II (%)  WS (kmph)  RF (mm/week)  SSH   (hrs)  EVP (mm/week)
1 19.5 4.9 92 52 3.3 2.3 5.3 10.2
2 19.0 5.2 93 56 3.5 5.6 5.0 9.6
3 18.9 4.3 91 50 3.7 3.0 6.4 12.2
4 21.0 4.9 91 43 3.7 1.7 7.7 14.7
5 21.6 5.3 91 43 3.9 1.6 7.5 16.0
6 22.5 6.5 89 46 4.3 3.3 7.2 16.9
7 22.8 7.7 89 47 4.4 5.8 7.2 18.5
8 23.3 7.6 88 45 4.9 5.8 7.3 21.8
9 24.5 8.2 88 42 4.3 1.8 7.9 24.2
10 27.6 9.8 85 37 4.7 1.3 8.5 28.0
11 28.4 11.5 85 39 5.7 3.4 7.9 30.3
12 29.3 12.2 83 35 5.5 4.4 7.9 33.9
13 30.8 13.0 78 33 5.4 1.5 8.5 38.2
14 32.8 13.6 71 26 5.6 2.0 9.2 46.3
15 35.3 15.5 65 24 5.5 3.4 9.3 52.5
16 37.0 17.0 61 25 5.6 2.9 9.6 59.1
17 39.0 19.9 54 21 6.4 0.3 9.3 66.7
18 39.5 21.1 54 23 7.2 2.9 8.7 67.5
19 39.6 22.2 58 26 8.8 3.1 8.6 74.1
20 40.6 23.1 54 23 8.0 3.1 8.5 77.5
21 41.1 23.9 49 22 8.7 3.4 7.9 79.5
22 40.8 24.2 55 26 9.3 17.3 7.6 80.2
23 40.7 25.0 55 30 9.4 9.0 7.5 77.9
24 39.9 25.6 61 34 9.3 17.5 6.7 71.8
25 39.3 26.3 67 38 9.8 13.8 6.5 67.3
26 38.8 26.6 69 44 9.6 19.0 6.0 63.6
27 37.9 26.6 70 47 9.8 23.6 6.0 61.3
28 37.0 26.2 76 51 9.3 18.2 5.6 55.2
29 36.1 26.0 80 56 9.1 32.9 5.9 49.8
30 35.2 26.0 81 59 8.3 36.3 5.7 44.6
31 35.2 26.0 81 58 8.5 20.0 5.8 44.9
32 35.5 25.7 81 56 7.6 24.4 6.5 44.7
33 35.2 25.3 82 58 6.8 18.8 6.7 41.3
34 35.1 25.0 83 59 6.7 26.0 7.6 42.6
35 35.1 24.6 83 56 6.8 16.9 7.8 42.2
36 35.1 24.0 80 55 7.2 18.6 7.7 41.6
37 34.8 23.1 82 52 5.3 19.0 8.0 39.2
38 35.5 22.3 80 46 4.9 8.3 8.8 41.6
39 34.9 20.5 81 44 5.5 19.2 8.8 39.4
40 34.3 18.8 80 40 4.1 6.5 8.8 37.2
41 34.7 17.7 81 33 3.3 0.0 8.9 34.8
42 32.6 15.2 80 34 4.0 10.0 8.2 31.4
43 32.1 13.7 81 28 2.5 0.0 8.7 27.8
44 31.7 12.8 80 28 2.5 1.0 8.5 27.2
45 30.3 11.1 82 29 2.8 0.3 8.3 24.4
46 29.2 10.2 84 29 2.4 0.1 8.3 21.3
47 27.2 8.7 86 34 3.1 0.2 7.5 19.3
48 25.4 6.4 87 33 2.8 0.2 7.5 17.6
49 24.7 5.8 87 35 2.4 0.9 7.3 15.6
50 23.0 5.6 89 41 3.0 0.7 6.6 13.2
51 21.6 5.1 90 44 2.9 0.6 5.9 12.0
52 20.5 4.9 93 50 2.6 1.4 5.7 10.6

 

    Rainfall Statistics (Database 1986-2001)

Monthly and Annual Rainfall Normals (mm)

Parameter

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

Annual

Average

 14.4 16.3 11.6 9.7 24.4 60.8  124.9  104.4 68.3 17.8 0.7 3.9 457.1

Lowest

0.0 1.0 0.0 0.0 0.0 14.0 0.0 9.0 3.0 0.0 0.0 0.0 144

Highest

 48.0 43.0 57.0 46.0 103.0 166.0 252.0 257.0 314.0 140.0 5.0 32.0 781.0

SD

 14.8 12.2 15.5 13.3 30.9 41.4 77.3 74.6 81.5 42.3 1.4 8.2 197.5

CV (%)

 102.6 75.2 133.8 137.6 126.7 68.1 61.9 71.5  119.3 238.5 196.7 208.1 43.2

Seasonal Rainfall Normals (mm)

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

Average

 358.4 22.4 30.7 45.6

Lowest

63.0 0.0 12.0 4.0

Highest

 669.0 145.0 71.0 167.0

SD

 163.7 47.7 16.4 46.6

CV (%)

 45.7 213.2 53.3 102.1

Normal Rainy Days

 Parameter  

SW MONSOON (Jun-Sep)

NE MONSOON (Oct-Dec)

WINTER (Jan-Feb)

HOT WEATHER (Mar-May)

ANNUAL (Jan-Dec)

Average

 18.0 1.0 2.8 4.0 27.0

Lowest

5.0 0.0 1.0 1.0 16.0

Highest

 26.0 10.0 5.0 11.0 42.0

SD

 5.9 2.6 1.1 3.0 8.1

CV

 32.9 255.5 39.4 75.8 29.8

 

 Weekly Rainfall Probability (%) for different amounts

WEEK Upto 10mm 20mm 30mm 40mm 50mm 75mm 100mm >100mm
1 25 12 0 0 0 0 0 0
2 25 12 12 12 6 0 0 0
3 25 12 6 0 0 0 0 0
4 12 6 0 0 0 0 0 0
5 18 6 0 0 0 0 0 0
6 31 18 6 0 0 0 0 0
7 25 18 12 6 0 0 0 0
8 43 31 6 0 0 0 0 0
9 18 6 0 0 0 0 0 0
10 6 6 0 0 0 0 0 0
11 37 12 0 0 0 0 0 0
12 25 18 12 12 6 0 0 0
13 25 6 0 0 0 0 0 0
14 18 6 6 0 0 0 0 0
15 31 18 6 0 0 0 0 0
16 12 6 6 6 6 0 0 0
17 6 0 0 0 0 0 0 0
18 18 18 6 0 0 0 0 0
19 31 18 6 0 0 0 0 0
20 43 12 0 0 0 0 0 0
21 31 12 12 0 0 0 0 0
22 37 25 18 12 12 12 6 0
23 68 18 18 12 0 0 0 0
24 62 50 18 12 12 12 6 0
25 68 37 31 25 18 6 6 0
26 68 50 18 18 12 6 6 6
27 68 50 43 31 25 18 12 6
28 68 62 37 12 12 12 0 0
29 81 62 50 43 31 25 12 12
30 68 62 43 37 37 31 18 12
31 56 50 37 31 18 18 12 0
32 56 37 31 31 25 18 12 6
33 68 62 37 18 18 12 0 0
34 68 50 43 37 37 31 12 0
35 62 37 31 31 25 18 0 0
36 43 31 18 18 18 12 6 6
37 50 43 37 31 18 12 0 0
38 18 12 12 12 6 6 6 0
39 43 25 12 6 6 6 6 6
40 31 18 6 6 6 6 0 0
41 0 0 0 0 0 0 0 0
42 25 12 12 6 6 6 6 6
43 0 0 0 0 0 0 0 0
44 6 6 0 0 0 0 0 0
45 6 0 0 0 0 0 0 0
46 0 0 0 0 0 0 0 0
47 0 0 0 0 0 0 0 0
48 0 0 0 0 0 0 0 0
49 6 6 0 0 0 0 0 0
50 12 0 0 0 0 0 0 0
51 6 0 0 0 0 0 0 0
52 18 12 0 0 0 0 0 0

 

Weekly Rainfall values at different Probability levels

 WEEK

PRECIPITATION (mm) FOR THE PROBABILITIES(%)
90 75 50 25 10
1 0.2 0.8 2.6 6.3 11.7
2 0.3 0.9 2.4 4.9 8.2
3 0.2 0.9 3.3 8.5 16.1
4 0.3 0.9 2.2 4.3 7.2
5 0.3 1.2 3.8 8.6 15.5
6 0 0 2.5 8.1 12.2
7 0 0 4.2 12.3 18.7
8 0 0 7.4 29.7 49
9 0.3 0.8 2.2 4.8 8.3
10 0.2 0.9 3.1 7.8 14.9
11 0.4 0.9 2 3.6 5.6
12 0.3 1 2.5 5.3 9.1
13 0.3 0.8 2.2 4.8 8.3
14 0.4 1 2.3 4.7 7.7
15 0.3 0.7 1.7 3.4 5.6
16 0.3 0.8 1.9 3.7 6.2
17 0.4 0.8 1.7 3.1 4.9
18 0.2 0.7 1.9 4.3 7.6
19 0.2 1 3.6 9 17
20 0.2 0.8 2.7 6.6 12.3
21 0.2 0.9 2.9 6.7 12.3
22 0.4 1.1 2.5 4.9 8
23 0.4 1.3 3.8 8.6 15.2
24 0.3 1.5 5.3 13.5 25.6
25 0.5 1.9 5.7 13.1 23.6
26 0.5 2.1 7.5 19 36.1
27 0.8 3.5 12.2 30.9 58.7
28 1.2 5.1 17.3 42.7 80.1
29 1.1 4.8 16.5 41.5 78.3
30 1.6 6.4 20.3 47.9 87.5
31 1.3 5 15.2 35.2 63.8
32 1.6 6.1 18.7 43.1 78
33 1.1 5.4 20.3 53.6 104
34 0.6 3.2 12.2 32.3 63
35 0.6 3.3 12.8 34.4 67.5
36 0.3 1.9 8.9 26.7 55.6
37 0.3 2.1 9.6 28 57.3
38 0.1 1 6 20.2 44.5
39 0.1 0.9 4.6 14.1 29.6
40 0.1 0.7 3.1 8.8 17.7
41 0.2 0.6 1.8 4 7.1
42 0.2 0.6 1.7 3.5 6
43 0.1 0.5 2.3 6.7 13.6
44 0.4 0.7 1.3 2.3 3.4
45 0.2 0.6 1.4 2.7 4.3
46 0.5 0.8 1.2 1.8 2.5
47 0.3 0.7 1.3 2.3 3.5
48 0.2 0.6 1.8 3.9 6.8
49 0.4 0.7 1.4 2.2 3.3
50 0.3 0.7 1.7 3.3 5.4
51 0.3 0.8 2.2 4.7 8.2
52 0.3 0.8 2.1 4.3 7.3
ANN 242.6 322 429.3 558.2 694

 

  Crop Season Rainfall Characteristics

Mean start, end, duration and rainfall during the season

 MEAN START = 29*

As Early As = 26*

As Late As = 34*

 STD.DEV = 2.1

 MEAN END = 40*

As Early As = 35*

As Late As = 52*

STD.DEV = 5.6

 MEAN DUR = 11*

MIN DUR = 4*

MAX DUR = 25*

STD.DEV = 6.6

MEAN CSR** = 335mm

MIN CSR** = 80mm

MAX CSR** = 590mm

STD.DEV = 155.9mm

                    * Standard Meteorological Week          

                    ** Crop Season Rainfall (CSR)

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