Calcutta/Dum

Vertical scale is temperature in tenths of degrees Celsius. The graph below has a vertical axis which spans -40°C to +40°C and a time scale that spans from Jan 1850 to Dec 2007. This helps put in perspective the overall climate of the place and the span of available data. The graph is linked to a zoomed in version where the vertical and horizontal scales are automatically computed by the graphing library.

Google Maps link: station 42809 location.

[ Temperatures: Calcutta/Dum, India]

Black lines are raw temperatures and red lines are adjusted temperatures. Raw temperatures are plotted over adjusted temperatures so that adjusted data are only visible when they differ from the raw temperatures.

There may be multiple (potentially overlapping) series for each station in the data set. In such cases, I averaged the temperatures from multiple series by month to come up with a single series for each WMO station identifier.

Meteorological Station Location Information (NOAA)

wmo_identifier: 42809
icao_indicator: VECC
place_name: Calcutta / Dum Dum
state:
country: India
wmo_region: 2
station_latitude: 22-39N
station_longitude: 088-27E
upper_air_latitude: 22-39N
upper_air_longitude: 088-27E
station_elevation: 4
upper_air_elevation: 6
rbsn_indicator: P

Station Information from GHCNv2 Inventory

Search for GISS Graph:
country: 207
wmo_identifier: 42809
mod: 000
name: Calcutta/Dum
latitude: 22.65
longitude: 88.45
elevation: 6
elev_interpolated: 0
population_type: Urban (population > 50,000)
population_in_thousands: 7031
topography_type: Flat
vegetation_type: No information
location_type: Not island / Not coastal / Not by lake
distance_to_coast: -9
is_at_airport: At an airport
dist_to_airport: 2
grid_vegetation: Paddylands