PRISM Long-Term Average Climate Dataset Norm81m (OREGONSTATE/PRISM/Norm81m)

The PRISM daily and monthly datasets are gridded climate datasets for the conterminous United States, produced by the PRISM Climate Group at Oregon State University.

Grids are developed using PRISM (Parameter-elevation Regressions on Independent Slopes Model). PRISM interpolation routines simulate how weather and climate vary with elevation, and account for coastal effects, temperature inversions, and terrain barriers that can cause rain shadows. Station data are assimilated from many networks across the country. For more information, see the Descriptions of PRISM Spatial Climate Datasets.

NameDescriptionGee Unit
ppt30 Year average of monthly total precipitation (including rain and melted snow)mm
tmean30 Year average of monthly mean temperature (calculated as (tmin+tmax)/2)°C
tmin30 Year average of monthly minimum temperature°C
tmax30 Year average of monthly maximum temperature°C
tdmean30 Year average of monthly mean dew point temperature°C
vpdmin30 Year average of monthly minimum vapor pressure deficithPa
vpdmax30 Year average of monthly maximum vapor pressure deficithPa


PRISM / OREGONSTATE (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords 30-Year, PRISM, climate, geophysical, monthly, oregonstate, precipitation, pressure, temperature, vapor, weather
License proprietary
Temporal Extent 12/31/1980, 4:00:00 PM - 12/31/2000, 4:00:00 PM
Citation [Daly, C., Halbleib, M., Smith, J.I., Gibson, W.P., Doggett, M.K., Taylor, G.H., Curtis, J., and Pasteris, P.A. 2008. Physiographically-sensitive mapping of temperature and precipitation across the conterminous United States. International Journal of Climatology, 28: 2031-2064](
Type image_collection
GSD arc minutesm
gee:climatological_interval month
Asset schema {"name":"PRISM_CREATION_DATE","description":"List of original creation dates for each band, e.g: the first element is for the first band \"ppt\", the second element is for the second band \"tmean\"","type":"STRING_LIST"},{"name":"PRISM_DATASET","description":"List of dataset types per-band","type":"STRING_LIST"},{"name":"PRISM_VERSION","description":"List of code versions per-band","type":"STRING_LIST"},{"name":"PRISM_FILENAME","description":"List of original filenames per-band","type":"STRING_LIST"}