Template:Climate
This template uses TemplateStyles: 
To have common look throughout all articles, this legacy template transforms into {{Climate chart}}. Similarly, also {{Weather box}} results in the same result and allows simple adding of wikipedia data.
As of now, only precipitation, snowfall and low/high air temperatures are shown in the graph. Both imperial and metric units are supported. If precipitation is too high and mangles the graph, add 'maxprecip' argument to clamp it down.
Quick howto
At a minimum, this template should be used to display average high and low temperatures. There's really no place where travellers wouldn't want to know the average temperatures. Here's what the climate chart for Dallol, Ethiopia, the hottest inhabited place on Earth, would look like:
Climate  

Climate chart (explanation)  
 

If they're relevant, precipitation (which is technically defined as all forms of water: rain, snow, etc.) and snowfall can be shown too.
Of those, precipitation is often nice to have, and snowfall is useful in places with a lot of snow, especially in ski resorts and other places where people go to find snow.
Usage
Autogenerating
For U.S. destinations, http://mountaininterval.org/wikivoyage/climate.html can be used to automatically generate {{climate}} templates populated with data from the NOAA monthly normal dataset (19812010) that can then be copied into Wikivoyage articles.
Manual entry
Template parameters:
 title
 Table title. If the parameter is omitted, the article name will be displayed as the table title. If the parameter is included, but with no value, no title will be displayed.
 units
 Either "metric" or "imperial". Set units = Metric if the table is using Metric units (Celsius and centimeters) or to units = Imperial for Imperial units (Fahrenheit and inches). Please use units of measure appropriate to the location the page describes (Imperial in USA but Metric almost everywhere else) per Project:Measurements.
 align
 Either "right", "left", "center" or "none". Default is "right". A value of "none" will display the table inline.
 xxxhigh
 The average high temperature for the month, in °C (metric) or °F (imperial).
 xxxlow
 The average low temperature for the month, in °C (metric) or °F (imperial).
 xxxprecip
 The average rainfall amount for the month, in millimeters (metric) or inches (imperial).
 description
 maxprecip
 Maximum rainfall of any months  used to clamp the graph in case of extreme values that don't fit.
 Optional text that will be displayed at the bottom of the climate table. This field is often used to include the {{forecastNOAA}} daily forecast or other information related to the climate data.
Temperatures should be populated for every month, but for the other values (precipitation, snowfall), instead of 0 you can put a hyphen () to make it visually clearer that "there is no precipitation/snowfall this month". (See the example for McMurdo Station, Antarctica, above.)
Copy and paste the below wiki markup into a page and give values to as many of the parameters as you wish to use (empty parameters will be gracefully ignored by the template).
{{Climate units = Metric
 janhigh =
 febhigh =
 marhigh =
 aprhigh =
 mayhigh =
 junhigh =
 julhigh =
 aughigh =
 sephigh =
 octhigh =
 novhigh =
 dechigh =
 janlow =
 feblow =
 marlow =
 aprlow =
 maylow =
 junlow =
 jullow =
 auglow =
 seplow =
 octlow =
 novlow =
 declow =
 janprecip =
 febprecip =
 marprecip =
 aprprecip =
 mayprecip =
 junprecip =
 julprecip =
 augprecip =
 sepprecip =
 octprecip =
 novprecip =
 decprecip =
 jansnow =
 febsnow =
 marsnow =
 aprsnow =
 maysnow =
 junsnow =
 julsnow =
 augsnow =
 sepsnow =
 octsnow =
 novsnow =
 decsnow =
 description = '''Here''' type some descriptive text about the location's climate. No literal line breaks are permitted in this text but <br/> and other correctly formatted HTML is okay. See [[Template talk:ClimateDev1#Note]] if an '''equal sign''' is needed in the text.
}}
Related templates
 {{forecast/US}}  Given a latitude and longitude, this template will provide a link to a National Weather Service website that provides an uptodate weather forecast for the specified locale. This feature is only available for U.S. locales.
 {{forecast/AU}}  the same as {{forecast/US}}, but works for Australian locales instead.
 {{forecastNOAA}}  the same as {{forecast/US}}, but it is for inline use and only generates the link to the NOAA forecast.
Template data
This template formats simple climate info. Give it Metric or Imperial units of measure depending which is appropriate for the location you describe. Note: For US destinations http://mountaininterval.org/wikivoyage/climate.html can be used to automatically generate {{climate}} templates populated with data from the NOAA monthly normal dataset (19812010) that can then be copied into Wikivoyage articles.
Parameter  Description  Type  Status  

Location title  title  Optional field. By default, the article name will be displayed location of where the information in this template pertains to. If this field is set, it will replace the the article name with what is specified in this field.
 Unknown  optional 
Template alignment  align  Alignment of where the template will be displayed relative the text of of the article. Either "right", "left", "center" or "none". Default is "right". A value of "none" will display the table inline.
 String  optional 
Units of measurement  units  Specify "metric" or "imperial". If set to "metric" the template will indicate the temperature units of measure are in Celsius (C), and rain and snow units of measurement are in millimeters (mm). If set to "imperial" the template will indicate the temperature units of measure are in Fahrenheit (F), and rain and snow units of measurement are in inches.
 String  required 
Description  description  For identifying the source of the data in this template and for linking to forecasts. This field is often used to include the {{forecastNOAA}} daily forecast or other information related to the climate data.
 String  required 
Jan average high temp  janhigh  Average daily high temperature during January. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Feb average high temp  febhigh  Average daily high temperature during February. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Mar average high temp  marhigh  Average daily high temperature during March. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Apr average high temp  aprhigh  Average daily high temperature during April. Average daily high temperature during April. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
May average high temp  mayhigh  Average daily high temperature during May. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Jun average high temp  junhigh  Average daily high temperature during June. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Jul average high temp  julhigh  Average daily high temperature during July. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Aug average high temp  aughigh  Average daily high temperature during August. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Sep average high temp  sephigh  Average daily high temperature during September. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Oct average high temp  octhigh  Average daily high temperature during October. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Nov average high temp  novhigh  Average daily high temperature during November. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Dec average high temp  dechigh  Average daily high temperature during December. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Jan average low temp  janlow  Average daily low temperature during January. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Feb average low temp  feblow  Average daily low temperature during February. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Mar average low temp  marlow  Average daily low temperature during Marh. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Apr average low temp  aprlow  Average daily low temperature during April. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
May average low temp  maylow  Average daily low temperature during May. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Jun average low temp  junlow  Average daily low temperature during June. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Jul average low temp  jullow  Average daily low temperature during July. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Aug average low temp  auglow  Average daily low temperature during August. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Sep average low temp  seplow  Average daily low temperature during September. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Oct average low temp  octlow  Average daily low temperature during October. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Nov average low temp  novlow  Average daily low temperature during November. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Dec average low temp  declow  Average daily low temperature during December. If the units of measurement are metric, this value is in Celcius (C). If the units of measurement are imperial, this value is in Fahrenheit (F).
 Number  suggested 
Jan average rain  janprecip  Average total rain for January. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Feb average rain  febprecip  Average total rain for February. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Mar average rain  marprecip  Average total rain for March. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Apr average rain  aprprecip  Average total rain for April. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
May average rain  mayprecip  Average total rain for May. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Jun average rain  junprecip  Average total rain for June. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Jul average rain  julprecip  Average total rain for July. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Aug average rain  augprecip  Average total rain for August. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Sep average rain  sepprecip  Average total rain for September. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Oct average rain  octprecip  Average total rain for October. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Nov average rain  novprecip  Average total rain for November. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Dec average rain  decprecip  Average total rain for December. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  suggested 
Jan average snowfall  jansnow  Average total snowfall for January. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Feb average snowfall  febsnow  Average total snowfall for February. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Mar average snowfall  marsnow  Average total snowfall for March. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Apr average snowfall  aprsnow  Average total snowfall for April. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
May average snowfall  maysnow  Average total snowfall for May. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Jun average snowfall  junsnow  Average total snowfall for June. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Jul average snowfall  julsnow  Average total snowfall for July. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Aug average snowfall  augsnow  Average total snowfall for August. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Sep average snowfall  sepsnow  Average total snowfall for September. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Oct average snowfall  octsnow  Average total snowfall for October. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Nov average snowfall  novsnow  Average total snowfall for November. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Dec average snowfall  decsnow  Average total snowfall for December. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 
Maximum Monthly Precipitation  maxprecip  Useful in case the graph is mangled, to clamp down the bars. If the units of measurement are metric, this value is in millimetres (mm). If the units of measurement are imperial, this value is in inches (in).
 Number  optional 