Rainfall:

Three climatic classes are found in the State i.e. Arid, Semi-arid and humid. The mean annual rainfall varies from 400 mm. in the Eastern parts to more than 4000 mm. in the Western ghats and Coastal beach of the State. Average annual rainfall is 1139 mm. The same is received in two currents namely South-West monsoon (June-September) and North-East Monsoon (October-December). Normal rainfall for Kharif, Rabi and Summer is of the order of 930 mms, 195 mms and 14 mms, respectively.

Annual rainfall pattern analysed over a period of 39 y ears (1960-61 to 1998-99) indicates that, it was deficit in 8 years. During 1960s rainfall was deficit in two years, in 1970s only one year and was deficit for 3 years and 2 years, during 1980s and 1990s, respectively.

When the pattern was analysed for Kharif season, it was observed that the rainfall was deficit for 10 years out of 39 years. During 1960s, 1970s, 1980s and 1990s, it was deficit during 2 years, one year, 4 years and 3 years, respectively.

In case of Rabi season, it was observed that rainfall was deficit for 19 years out of 39 years. During 1960s, 1970s, 1980s and 1990s, it was deficit for 4, 5, 8 and 2 years, respectively.

Year-wise annual rainfall pattern,district-wise and month-wise normal rainfall and seasonal rainfall and Annual foodgrain production are furnished below.

 

 

SEASONAL-WISE RAINFALL AND ANNUAL FOODGRAINS PRODUCTION IN KARNATAKA

(Unit: Rainfall in mms - Foodgrain Prodn. In lakh tonnes)

Year

Kharif

Rabi

Summer

Total

Foodgrain Production

Normal Rainfall

930

195

14

1139

1960-61

1018.9

171.3

6.7

1196.9

39.30

1961-62

1471.6

205.5

14.5

1691.6

41.15

1962-63

1278

318.4

29.4

1625.8

44.52

1963-64

992.4

229.1

3.1

1224.6

47.91

1964-65

1144.4

210.5

5.5

1360.4

48.39

1965-66

760.5

79.8

14.3

854.6

35.45

1966-67

861.3

278.9

11.5

1151.7

43.93

1967-68

988.4

124.3

17.5

1130.2

39.54

1968-69

1047.1

151.8

4.3

1203.2

52.11

1969-70

1024.1

243.8

10.5

1278.4

56.79

1970-71

1224.2

244.5

7.7

1476.4

57.46

1971-72

1122.7

149.1

1.7

1273.5

60.25

1972-73

1020.6

197.3

0.7

1218.6

49.68

1973-74

1153.8

188.6

6.9

1349.3

66.43

1974-75

1240.7

159.3

24.3

1424.3

61.00

1975-76

1459.9

261.4

5.6

1726.9

70.44

1976-77

891.6

169.9

18.5

1080

48.23

1977-78

1128.4

332

11.7

1472.1

73.00

1978-79

1323.7

227.4

26.3

1577.4

72.43

1979-80

1188.8

215.4

6.1

1410.3

72.66

1980-81

1347.1

155.4

21.6

1524.1

62.02

1981-82

1318.1

156.8

1.8

1476.7

72.79

1982-83

1115.6

149.6

0.4

1265.6

60.29

1983-84

1206.4

156.3

78.5

1441.2

73.14

1984-85

1075.7

177.8

19.4

1272.9

67.84

1985-86

895.9

133.8

23.5

1053.2

57.90

1986-87

983.8

201

3.9

1188.7

73.38

1987-88

820.6

322.8

12.3

1155.7

62.80

1988-89

1212.7

69

15.8

1297.5

67.33

1989-90

926.6

103.4

7

1037

70.58

1990-91

879

166

2.5

1047.5

62.44

1991-92

1053

195

0.3

1248.3

79.01

1992-93

1070

262.3

7

1339.3

84.98

1993-94

800

316

12

1128

86.59

1994-95

950

267

17

1234

81.11

1995-96

873

169

0

1042

86.45

1996-97

963

192

26

1181

92.13

1997-98

895

279

2

1176

82.59(p)

1998-99

964

231

7

1202

99.77(p)

 

Note: p-Provisional.

 

Annual Rainfall

 

District-wise and Month-wise Normal Rainfall in Karnataka Unit – Mms.

Sl.

No.

District

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

1 Bangalore (U)

5

8

8

42

116

69

99

123

149

168

64

47

867

2 Bangalore (R)

4

6

8

42

107

68

84

112

151

158

63

13

817

3 Kolar

7

6

9

33

80

61

81

100

145

136

69

17

744

4 Tumkur

3

4

6

34

91

61

69

85

128

142

56

10

688

5 Shimoga

1

2

8

44

87

307

681

352

130

146

44

10

1813

6 Chitradurga

3

4

5

25

76

49

63

68

99

124

46

12

573

7 Davanagere

2

3

8

35

78

66

98

80

102

120

42

10

644

8 Mysore

3

6

13

66

139

65

100

76

89

152

61

13

782

9 Chamarajanagar

4

5

11

66

140

47

53

68

100

163

76

19

751

10 Mandya

3

5

8

50

123

44

45

64

112

169

62

15

700

11 Kodagu

5

6

15

74

147

486

938

529

219

202

80

19

2718

12 Hassan

3

4

8

59

109

118

250

139

98

161

65

15

1031

13 Chickmagalur

3

4

9

55

102

300

672

382

160

164

59

16

1925

14 Dakshina Kannada

5

2

10

47

172

940

1301

806

321

257

94

19

3975

15 Udupi

4

2

5

37

170

1055

1342

800

383

224

78

19

4119

16 Dharwad

1

3

7

45

85

95

152

100

112

120

42

10

772

17 Gadag

2

2

4

35

71

70

68

70

128

116

37

9

612

18 Haveri

2

2

5

40

77

96

172

103

85

122

39

11

753

19 Uttara Kannada

1

1

4

28

103

680

1006

554

248

148

49

12

2835

20 Belgaum

2

2

8

33

65

104

205

122

110

111

38

9

808

21 Bijapur

3

4

6

19

35

78

79

77

157

84

28

8

578

22 Bagalkote

2

3

5

24

48

65

73

67

141

93

33

8

562

23 Raichur

1

2

6

17

34

76

108

113

152

84

22

7

621

24 Koppal

1

0

2

23

50

60

82

91

136

100

21

7

572

25 Bellary

2

3

4

28

64

66

85

95

142

105

33

9

636

26 Gulbarga

3

4

10

19

33

108

161

144

193

81

16

5

777

27 Bidar

4

6

11

21

23

131

190

180

192

65

19

6

847

  State Average

3

4

7

37

87

182

285

190

150

134

49

12

1139

 

 

Rainfall in Karnataka

NIC-AGRI