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State-wise Seasonal and Annual Rainfall, 2021, 2022, 2023 and 2024:

(in mm)

2024

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

101.9

581.5

1200.3

281.4

2192.8

Assam

29.2

421.5

1206.8

190.7

1858.5

Manipur

27.8

394.1

712.1

168.1

1303.9

Meghalaya

23.5

670.8

2470.0

282.2

3446.4

Mizoram

23.9

400.7

1343.4

118.5

1886.5

Nagaland

47.3

374.9

759.2

111.5

1362.3

Sikkim

87.9

439.6

2039.9

226.7

2799.2

Tripura

47.2

508.8

1578.3

148.6

2282.9

All India

26.9

126.6

935.9

117.3

1206.6

2023

States

Winter

Pre-Monsoon

SW-Monsoon

Post-Monsoon

Annual

Arunachal Pradesh

109.4

446.9

1491.9

201.2

2249.3

Assam

26.6

335.1

1205.9

149.0

1716.7

Manipur

0.8

122.0

563.1

112.7

798.6

Meghalaya

7.5

387.0

2349.8

278.3

3022.6

Mizoram

0.0

302.6

1169.9

241.9

1714.4

Nagaland

2.2

225.8

963.9

122.2

1299.2

Sikkim

99.9

655.5

1752.4

303.4

2811.1

Tripura

0.0

263.8

1232.6

253.9

1750.3

All India

22.4

147.9

821.6

110.7

1102.8

2022

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

132.8

838.2

1430.3

359.4

2810.6

Assam

75.8

760.9

1340.5

198.5

2375.7

Manipur

60.8

441.9

544.7

177.9

1225.2

Meghalaya

74.3

1433.8

2477.2

319.5

4216.1

Mizoram

23.6

393.5

1264.1

152.1

1833.3

Nagaland

78.0

405.2

899.1

115.6

1456.0

Sikkim

175.3

829.9

1995.0

300.5

3300.7

Tripura

31.2

455.8

1058.2

227.5

1772.8

All India

58.5

130.2

924.8

144.1

1257.0

2021

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

41.8

581.5

1294

157.2

2083.8

Assam

41.8

581.5

1294

157.2

2083.8

Manipur

10.1

225.7

560.9

116.9

913.6

Meghalaya

1.2

699.6

2257.6

213.6

3171.9

Mizoram

2.9

185

1271.3

193.9

1653.1

Nagaland

7.4

211.1

841.1

93.5

1153.1

Sikkim

68.9

828.8

1798

347.7

3043.3

Tripura

7.5

274.1

1246.1

233.3

1761.1

All India

27.8

155.6

874.5

177.9

1236.4

Source: Rainfall Statistics of India 2021, 2022, 2023 and 2024

 

Percentage Departure of State-wise Seasonal and Annual Rainfall, 2021, 2022, 2023 and 2024:

2024

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

-23%

-23%

-28%

17%

-22%

Assam

-34%

-22%

-18%

23%

-16%

Manipur

-27%

9%

-31%

-8%

-20%

Meghalaya

-32%

-6%

-8%

-8%

-8%

Mizoram

-15%

-29%

-17%

-52%

-23%

Nagaland

46%

10%

-27%

-24%

-13%

Sikkim

-13%

-28%

22%

23%

9%

Tripura

54%

-23%

13%

-27%

0%

All India

-32%

-3%

8%

-3%

4%

2023

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

-18%

-41%

-11%

-17%

-20%

Assam

-40%

-38%

-18%

-4%

-23%

Manipur

-98%

-66%

-46%

-38%

-51%

Meghalaya

-78%

-46%

-13%

-9%

-19%

Mizoram

-100%

-46%

-28%

-2%

-30%

Nagaland

-93%

-34%

-7%

-16%

-17%

Sikkim

-1%

7%

5%

65%

9%

Tripura

-100%

-60%

-11%

25%

-24%

All India

-44%

13%

-5%

-9%

-5%

2022

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

0%

11%

-15%

49%

0%

Assam

70%

40%

-9%

28%

7%

Manipur

59%

22%

-48%

-3%

-25%

Meghalaya

116%

100%

-8%

4%

12%

Mizoram

-16%

-30%

-22%

-39%

-26%

Nagaland

140%

19%

-13%

-21%

-6%

Sikkim

73%

36%

19%

63%

28%

Tripura

2%

-31%

-24%

12%

-23%

All India

47%

0%

6%

19%

8%

2021

States

Winter

Pre- Monsoon

SW-Monsoon

Post- Monsoon

Annual

Arunachal Pradesh

-72%

-25%

-25%

-41%

-28%

Assam

-71%

-39%

-23%

-16%

-28%

Manipur

-76%

-37%

-60%

-48%

-55%

Meghalaya

-97%

-7%

-21%

-35%

-20%

Mizoram

-91%

-68%

-23%

-27%

-35%

Nagaland

-82%

-44%

-26%

-42%

-33%

Sikkim

-36%

36%

12%

61%

20%

Tripura

-79%

-60%

-15%

5%

-26%

All India

-32%

18%

-1%

44%

5%

Source: Rainfall Statistics of India 2021, 2022, 2023 and 2024

 

State-wise Monthly Rainfall, 2021, 2022, 2023 and 2024:

(in mm)

2024

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

9.3

92.6

107.7

263.0

225.8

435.5

365.4

255.2

144.2

256.4

11.7

6.7

Assam

1.2

28.0

47.7

120.1

253.7

466.2

350.3

240.0

150.2

178.3

9.2

1.9

Manipur

0.0

27.8

36.2

64.2

299.7

110.5

193.4

300.3

108.9

142.8

24.9

0.3

Meghalaya

1.2

22.3

53.8

41.9

575.1

940.4

735.0

584.5

210.0

274.9

7.3

0.0

Mizoram

2.2

21.7

18.2

64.5

317.9

264.3

309.2

504.9

265.0

78.7

29.0

10.9

Nagaland

0.7

46.6

42.7

159.7

172.5

197.9

245.4

190.8

125.9

92.3

5.0

0.0

Sikkim

22.8

65.0

116.3

166.5

156.9

727.0

531.2

376.7

405.0

205.6

7.7

13.4

Tripura

0.3

46.9

76.1

70.3

362.4

444.9

275.8

696.9

160.7

126.5

20.7

1.4

All India

7.2

19.7

28.6

32.1

66.4

147.3

304.6

293.5

187.7

75.9

13.4

27.6

2023

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

10.9

98.5

114.4

110.6

222.0

382.8

492.0

438.1

179.0

167.3

14.0

19.9

Assam

0.5

26.1

88.7

108.5

138.0

455.4

281.4

316.8

152.4

114.5

17.3

17.2

Manipur

0.0

0.8

36.1

37.6

48.4

176.3

114.1

164.2

108.5

43.4

39.0

30.3

Meghalaya

0.1

7.4

133.4

81.1

172.5

892.4

598.6

581.5

277.4

237.9

15.3

25.0

Mizoram

0.0

0.0

56.8

109.4

136.4

288.8

266.4

377.8

236.8

113.1

58.9

69.9

Nagaland

0.3

2.1

45.0

62.2

118.6

231.1

298.5

300.3

134.0

64.4

25.7

32.1

Sikkim

0.7

99.1

196.3

200.9

258.2

514.2

506.5

536.3

195.3

276.9

18.2

8.4

Tripura

0.0

0.0

72.5

94.3

97.0

356.8

271.9

386.3

217.6

92.2

117.4

44.3

All India

14.8

7.5

37.6

42.3

67.9

152.9

316.5

162.9

189.9

50.6

34.7

25.5

2022

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

47.0

85.8

77.4

432.9

327.9

599.3

322.3

177.9

330.7

335.5

0.9

23.0

Assam

23.5

52.3

44.3

318.1

398.5

673.7

273.9

207.0

185.9

193.2

0.1

5.3

Manipur

29.7

31.1

64.1

98.3

279.4

234.3

134.9

91.7

83.8

164.1

1.4

12.4

Meghalaya

24.4

49.4

57.6

428.7

947.5

1495.8

353.5

250.1

377.8

315.4

1.0

3.2

Mizoram

6.5

17.1

14.1

50.5

328.8

313.9

392.9

350.7

206.6

144.1

0.7

7.4

Nagaland

32.2

45.8

11.5

181.3

212.4

245.4

244.4

191.3

218.0

103.2

0.5

11.9

Sikkim

54.3

121.0

115.4

345.3

369.2

628.4

332.3

459.1

575.2

291.5

4.5

4.5

Tripura

12.7

18.5

32.2

64.1

359.5

373.0

189.1

245.6

250.6

221.5

0.0

6.0

All India

39.5

19.1

8.9

38.2

83.2

152.2

327.2

264.0

181.4

111.8

18.6

13.6

2021

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

29.1

12.7

98.4

183.7

296.5

377.3

266.8

508.7

141.2

124.6

13.9

16.8

Assam

11.1

2.8

40.7

76.6

220.7

379.8

305.6

296.1

168.5

120.2

3.9

10.9

Manipur

8.5

1.6

37.6

57

131.1

174.2

132.8

170

83.9

74.2

4.2

38.5

Meghalaya

0.5

0.7

53.4

190.1

456

721.3

496.8

865.9

173.6

203.4

0

10.3

Mizoram

2.9

0

26.6

37.5

120.8

284.5

348.6

337.9

300.3

105.7

22.4

65.8

Nagaland

5.5

1.8

37.9

36.5

136.7

230.7

231.5

239.4

139.5

74.6

2.1

16.8

Sikkim

22.4

46.5

182.2

237.1

409.5

489.5

515

519.3

274.1

301.6

16.5

29.6

Tripura

7.5

0

51.5

31.3

191.2

283.4

393.7

335

234

104.6

12.2

116.5

Source: Rainfall Statistics of India 2021, 2022, 2023 and 2024

 

Percentage Departure of State-wise Monthly Rainfall, 2021, 2022, 2023 and 2024:

2024

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

-80%

6%

-37%

-13%

-21%

-4%

-7%

28%

-49%

-1%

-66%

-34%

Assam

-91%

-8%

-34%

-34%

-12%

12%

-37%

-6%

-46%

-6%

-22%

60%

Manipur

-100%

-2%

-38%

-47%

64%

-63%

-61%

-34%

-47%

-64%

-25%

194%

Meghalaya

-90%

1%

-32%

-82%

42%

30%

-34%

0%

-43%

-7%

-63%

181%

Mizoram

-79%

23%

-73%

-56%

-9%

-38%

-37%

-10%

-35%

-42%

38%

585%

Nagaland

-95%

144%

-8%

36%

-2%

-24%

-2%

13%

-36%

-42%

4%

235%

Sikkim

-35%

-2%

-11%

-13%

-46%

66%

7%

28%

-43%

98%

-35%

-48%

Tripura

-96%

95%

14%

-64%

-10%

4%

-28%

17%

-15%

-42%

269%

282%

All India

-58%

-13%

-4%

-18%

8%

-11%

9%

15%

12%

1%

-55%

74%

2023

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

-76%

13%

-33%

-63%

-22%

-16%

-7%

28%

-49%

-1%

-66%

-34%

Assam

-96%

-14%

22%

-40%

-52%

10%

-37%

-6%

-46%

-6%

-22%

60%

Manipur

-100%

-97%

-38%

-69%

-74%

-40%

-61%

-34%

-47%

-64%

-25%

194%

Meghalaya

-99%

-66%

68%

-65%

-57%

24%

-34%

0%

-43%

-7%

-63%

181%

Mizoram

-100%

-100%

-15%

-25%

-61%

-32%

-37%

-10%

-35%

-42%

38%

585%

Nagaland

-98%

-89%

-3%

-47%

-33%

-12%

-2%

13%

-36%

-42%

4%

235%

Sikkim

-98%

50%

50%

5%

-11%

17%

7%

28%

-43%

98%

-35%

-48%

Tripura

-100%

-100%

9%

-52%

-76%

-16%

-28%

17%

-15%

-42%

269%

282%

All India

-67%

-67%

26%

8%

11%

-7%

13%

-36%

13%

-33%

17%

60%

2022

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

3%

-2%

-55%

44%

15%

32%

-39%

-48%

-5%

98%

-98%

-24%

Assam

66%

73%

-39%

76%

38%

62%

-39%

-39%

-34%

58%

-99%

-51%

Manipur

200%

10%

10%

-19%

53%

-21%

-53%

-63%

-59%

36%

-97%

20%

Meghalaya

96%

125%

-28%

85%

134%

107%

-61%

-57%

-22%

24%

-98%

-64%

Mizoram

-37%

-4%

-79%

-65%

-6%

-26%

-7%

-16%

-43%

-26%

-98%

-27%

Nagaland

140%

140%

-75%

55%

20%

-6%

-20%

-28%

5%

-8%

-98%

24%

Sikkim

55%

82%

-12%

81%

28%

43%

-30%

10%

68%

108%

-84%

-72%

Tripura

89%

-23%

-52%

-67%

-11%

-12%

-50%

-26%

-2%

39%

-99%

-48%

All India

131%

-16%

-70%

-3%

35%

-8%

17%

4%

8%

48%

-37%

-14%

2021

States

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Arunachal Pradesh

-38%

-87%

-46%

-39%

3%

-23%

-49%

41%

-60%

-33%

-69%

-55%

Assam

-28%

-92%

-46%

-58%

-23%

-9%

-32%

-15%

-38%

-6%

-83%

3%

Manipur

-33%

-95%

-32%

-54%

-27%

-59%

-65%

-50%

-68%

-54%

-92%

199%

Meghalaya

-97%

-97%

-37%

-21%

6%

-9%

-49%

41%

-63%

-24%

-100%

-11%

Mizoram

-73%

-99%

-66%

-75%

-65%

-35%

-20%

-19%

-18%

-48%

-55%

453%

Nagaland

-65%

-93%

-31%

-72%

-28%

-18%

-32%

-20%

-37%

-37%

-93%

60%

Sikkim

-35%

-36%

36%

23%

44%

15%

12%

28%

-13%

81%

-46%

54%

Tripura

-5%

-100%

-35%

-85%

-51%

-38%

-2%

-2%

-8%

-39%

-69%

905%

Source: Rainfall Statistics of India 2021, 2022 and 2024

 

State/Season-wise Actual and Normal Rainfall, 2024-2025:

(In Millimetre)

States/UTs

Meteorological Sub-Division

Pre-Monsoon Season (March-May, 2024)

Monsoon Season (June-September, 2024)

Post-Monsoon Season (October-December, 2024)

Winter Season (January-February, 2025)

Actual

Normal

Departure (In %age)

Actual

Normal

Departure (In %age)

Actual

Normal

Departure (In %age)

Actual

Normal

Departure (In %age)

Arunachal Pradesh

Arunachal Pradesh

571.1

757.3

-25

1200

1675.1

-28

285.6

241.5

18

133.7

133.1

0

Assam

Assam & Meghalaya

477.5

582.6

-18

1483.4

1762.2

-16

211.9

190.1

11

30.6

42.1

-27

Nagaland

Nagaland, Manipur, Mizoram & Tripura

391.4

477

-18

1061.6

1301.7

-18

139

199.1

-30

4.3

31.9

-87

India

 

125.9

130.6

-4

934.8

868.6

8

117.4

121

-3

20.9

39.8

-47

Source : Indiastat.com

 

State/Season-wise Actual and Normal Rainfall, 2025-2026:

(upto July 2025)

(In Millimetre)

States/UTs

Meteorological Sub-Division

Pre-Monsoon Season (March-May, 2025)

Monsoon Season (June-September, 2025)

Actual

Normal

Departure (In %age)

Actual

Normal

Departure (In %age)

Arunachal Pradesh

Arunachal Pradesh

573.4

757.3

-24

548.8

983.9

-44

Assam

Assam & Meghalaya

636.4

582.6

9

556.1

1038.9

-46

Nagaland

Nagaland, Manipur, Mizoram & Tripura

392.7

477

-18

668.1

707.4

-6

India

 

185.8

130.6

42

474.3

445.8

6

Note : 1 : Upto July 2025.

Source : Indiastat.com

 

State/Season-wise Annual Rainfall in NER, 2024:

(In Millimeter)

States/UTs

Winter (January-February)

Pre-Monsoon (March-May)

Southwest Monsoon (June-September)

Post-Monsoon (October-December)

Annual

Arunachal Pradesh

101.9

571.1

1200

285.6

2158.6

Assam

28.9

420.3

1202.3

190.7

1842.2

Manipur

27.8

395.4

714.3

168.1

1305.6

Meghalaya

23.5

669.9

2430.2

282.2

3405.8

Mizoram

23.9

400.7

1343.2

118.3

1886.1

Nagaland

48.5

308.6

701.3

112

1170.4

Sikkim

84

436.2

2040.8

226.2

2787.2

Tripura

47.2

508.1

1578.4

148.6

2282.3

India

27

125.9

934.8

117.4

1205.1

Source : Indiastat.com

 

State/Station-wise Maximum and Minimum Temperature, 2024:

States

Stations

Minimum Temperature (°C)

Date (Month/Date)

Maximum Temperature (°C)

Date (Month/Date)

Highest 24 Hour Rainfall (In mm)

Date (Month/Date)

Arunachal Pradesh

Passighat

10.6

Jan-13

39.7

Jul-26

192.2

Jun-30

Assam

Dibrugarh AP

7

01-Aug

39.5

Sep-23

82.4

Jul-15

Guwahati AP

8.6

Jan-23

40.1

May-25

70

Jun-17

Tezpur

10.9

Jan-20

39.5

May-23

88.6

10-Jan

Manipur

Imphal

2.6

Jan-22

34.6

Sep-20

91.6

08-Jun

Meghalaya

Cherrapunji

4.5

Jan-18

33.1

Sep-22

634

May-30

Shillong

3

Jan-18

29.9

Sep-22

242.4

May-28

Sikkim

Gangtok

3.9

Jan-27

33.8

Jun-27

106.6

Sep-28

Tripura

Agartala AP

8.8

Jan-28

39.2

May-25

233

Aug-22

Source : Ministry of Earth Sciences, Govt. of India

 

State-wise Number of Earthquakes Occurred in NER, 2020 to 2025:

States/UTs

2020

2021

2022

2023

2024

2025-upto 22.03.2025

Arunachal Pradesh

33

33

19

32

34

5

Assam

52

113

24

61

77

10

Manipur

43

40

26

52

44

15

Meghalaya

24

16

15

41

43

7

Mizoram

22

7

7

8

3

1

Nagaland

18

3

-

7

10

-

Sikkim

7

10

3

3

9

1

Tripura

-

-

-

2

3

-

India

576

521

405

605

575

86

Source : Indiastat.com

 

State-wise Number of Seismological Observatories Installed in NER, 2021 to 2024:

States/UTs

Total Seismological Observatory

2021

2022

2023

2024

Arunachal Pradesh

8

2

-

1

1

Assam

7

-

-

-

-

Manipur

1

-

-

-

-

Meghalaya

2

-

-

-

-

Mizoram

3

1

-

-

-

Nagaland

2

-

-

-

-

Sikkim

1

-

-

-

-

Tripura

2

-

-

-

-

India

166

38

2

2

7

Source : Indiastat.com

 

State-wise Cropped Area Damaged Due to Hailstorm/Heavy Rain/Flood during Monsoon Season in NER, (w.e.f. 01.04.2025 to 14.07.2025):

States/UTs

Affected Crop Area (In Hectare)

Arunachal Pradesh

1706.67

Assam

35024

Manipur

439.78

Meghalaya

6372.3

Nagaland

11

Sikkim

5.66

India

158651.08

Source : Indiastat.com

 

State-wise Damages Due to Hydro meteorological Disasters in NER, As on 27.11.2024:

States/UTs

Human Lives Lost (In Number)

Cattle Lost (In Number)

Houses/Huts Damaged (In Number)

Cropped Area Affected (In Lakh Hectare)

Arunachal Pradesh

12

175

771

-

Assam

128

16207

156691

1.38

Manipur

11

233

29639

0.01

Meghalaya

43

241

4028

-

Mizoram

44

7

440

0.21

Nagaland

27

1

2229

0.03

Sikkim

13

4241

1668

-

Tripura

78

15

67487

-

India

2803

58835

347770

10.23

Note : Figures are Provisional.

Source : Indiastat.com

 

State-wise Cropped Area Affected Due to Hydro Meteorological Calamities in NER, 2023-24:

(upto 26.07.2023)

States/UTs

Crops Area Affected (In Hectare)

Arunachal Pradesh

1.54

Assam

28386

Manipur

-

Meghalaya

82

Mizoram

-

Nagaland

24

Sikkim

138

Tripura

-

India

404676.54

Note : Figures are provisional.

Source : Indiastat.com

 

State-wise Average Number of Cold Wave Days Reported in NER, 1971-79, 1980-89, 1990-99, 2000-09 and 2010 to 2024:

States/UTs

1971-79

1980-89

1990-99

2000-09

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

Assam

3

2

0

0

0

0

1

2

1

1

0

1

0

1

0

0

4

0

1

Sikkim

1

12

0

1

0

0

0

0

0

0

0

0

0

0

1

0

0

0

0

Tripura

6

2

3

1

0

0

2

7

2

2

0

1

0

0

2

0

0

0

0

Source : Indiastat.com