All Variables

Below is a library of all variables available within ClimateData.ca. Use the filter to limit your search to specific types of data.

This is the largest precipitation total on a single day. For more information about the source data and figures, click here.

Number of days with daily precipitation totals greater than 1 mm. For more information about the source data and figures, click here.

Number of days with daily precipitation totals greater than 10 mm. For more information about the source data and figures, click here.

Number of days with daily precipitation totals greater than 20 mm. For more information about the source data and figures, click here.

The maximum number of consecutive days with precipitation below 1mm/day, within the selected time period.

The number of periods with 5 or more consecutive days with precipitation below 1mm/day, within the selected time period.

This is the total precipitation (rain and snow) for a given time period. For more information about the source data and figures, click here.

The maximum total precipitation that falls over a consecutive 5-day period.

The Standardised Precipitation Evapotranspiration Index (SPEI) is a drought index based on the difference between precipitation (P) and potential evapotranspiration (PET). The inclusion of PET means that the SPEI can account for the effects of increased temperatures on water demand. Negative (positive) values indicate water deficit (surplus).

SPEI-3 corresponds to the SPEI of one month and the previous 2 months. For example, to look at SPEI values for summer (June, July and August), select August in the drop-down menu. The SPEI values displayed are for August and the previous 2 months, so June to August

The Standardised Precipitation Evapotranspiration Index (SPEI) is a drought index based on the difference between precipitation (P) and potential evapotranspiration (PET). The inclusion of PET means that the SPEI can account for the effects of increased temperatures on water demand. Negative (positive) values indicate water deficit (surplus).

SPEI-12 corresponds to the SPEI of one month and the previous 11 months. For example, to look at SPEI values for the year, select December in the drop-down menu. The SPEI values displayed are for December and the previous 11 months, so January to December.