Climate

Historical, current and forecast climate conditions around the country.

Climate Analysis
This interface allows users to view rainfall, maximum and minimum temperature climatologies and anomalies. Climatology is defined over the period 1981-2010.
This interface allows users to view rainfall, maximum and minimum temperature climatologies and anomalies. Climatology is defined over the period 1981-2010.
The Maproom explores historical daily precipitation by calculating simple seasonal statistics.
Climate Monitoring
This page displays dekadal (approximately 10-day) rainfall amounts over the country. The default map shows rainfall totals for the most recently available dekad, but totals for previous dekads can be displayed as well.
The Standardized Precipitation Index is an indicator of extreme rainfall events, whether they are drought or excess rainfall.
The Standardized Precipitation Index is an indicator of extreme rainfall events, whether they are drought or excess rainfall.
The 1-month Weighted Anomaly Standardization Precipitation (WASP) index provides a simple visual means of extreme rainfall events for the past month, whether they are drought or excess rainfall.
The 3-month Weighted Anomaly Standardization Precipitation (WASP) index provides a simple visual means of extreme rainfall events for the past season, whether they are drought or excess rainfall.
The 12-month Weighted Anomaly Standardization Precipitation (WASP) index provides a simple visual means of extreme rainfall events for the past 12 months, whether they are drought or excess rainfall.
Climate Forecast
This Maproom shows seasonal rainfall forecast on a rolling monthly basis.
This map shows the historical probability (given in percentile) of seasonal average monthly rainfall falling within the upper (wet), middle (normal), or bottom (dry) one-third ("tercile") of the 1981-2015 historical distribution in the region given the state of ENSO (El Niño, Neutral, La Niña) during that same season.
This map shows the historical probability (given in percentile) of seasonal average monthly minimum or maximum temperature falling within the upper (hot), middle (normal), or bottom (cold) one-third ("tercile") of the 1981-2013 historical distribution in the region given the state of ENSO (El Niño, Neutral, La Niña) during the same season.
This map shows the historical probability (given in percentile) of seasonal average monthly rainfall falling within the upper (wet), middle (normal), or bottom (dry) one-third ("tercile") of the 1981-2015 historical distribution in the region given the Terciles of IOD (Postive, Neutral, Negative) during that same season.
This map shows the historical probability (given in percentile) of seasonal average monthly temperature falling within the upper (hot), middle (normal), or bottom (cold) one-third ("tercile") of the 1981-2013 historical distribution in the region given the Terciles of IOD (Postive, Neutral, Negative) during that same season.