INDIA METEOROLOGICAL DEPARTMENT

MINISTRY OF EARTH SCIENCES

NORMAL AND EXTREME CLIMATE DATA


Information on extremes and normal of climate parameters for major cities and Pan India.


  Normal Climate Data.This page gives the information on normal climate data for temperature and rainfall for major cities of India.

  Extreme Climate Data.This page gives the information on month wise extremes values for temperature and rainfall and also extreme Indices for major cities of India.

  Pan India Data.This page gives the spatial climate maps of Inida for Rainfall, Maximum & Minimum Temperature for every months.

EXTREME INDICES.

I D
Indicator Name & Definitions
Units
R 10
Heavy rainfall days, Annual count PRCP >= 10 mm
Days
R 20
Very Heavy rainfall days, Annual count PRCP >= 20 mm
Days
R50
Very Heavy rainfall days, Rainfall > 50 mm
Days
SDII
Intensity Index Annual Rainfall / wet days PRCP>=1.0
CDD
Maximum length of Consecutive dry days with rainfall < 1 mm
Days
CWD
Maximum length of Consecutive wet days with rainfall >= 1 mm
Days
PRCPTOT
Annual total rainfall in wet days ( R/F > 1 MM )
MM
R95p
Annual total rainfall when R/F > 95th percentile
MM
R99p
Annual total rainfall when R/F > 99th percentile
MM
RX1
1 day rainfall heaviest in mm
MM
RX5
5 day rainfall heaviest in mm
MM
Tn10p
10th percentile value of minimum temperature
Deg Cel
Tx90p
90th percentile value of maximum temperature
Deg Cel