[null,null,[],[[["\u003cp\u003eThe PRISM AN81m dataset provides monthly gridded climate data for the conterminous United States from 1895 to 2024.\u003c/p\u003e\n"],["\u003cp\u003eIt includes precipitation, temperature, dew point temperature, and vapor pressure deficit data, calculated using the PRISM interpolation model.\u003c/p\u003e\n"],["\u003cp\u003eData is assimilated from various station networks, accounting for terrain and coastal effects on weather patterns.\u003c/p\u003e\n"],["\u003cp\u003eWhile freely available for use and distribution, the dataset is not suitable for century-long climate trend analysis due to inherent limitations.\u003c/p\u003e\n"],["\u003cp\u003eUsers are encouraged to attribute PRISM as the data source when utilizing this dataset.\u003c/p\u003e\n"]]],[],null,["# PRISM Monthly Spatial Climate Dataset AN81m\n\nDataset Availability\n: 1895-01-01T00:00:00Z--2025-07-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [PRISM / OREGONSTATE](https://www.prism.oregonstate.edu/)\n\nCadence\n: 1 Month\n\nTags\n:\n[climate](/earth-engine/datasets/tags/climate) [geophysical](/earth-engine/datasets/tags/geophysical) [monthly](/earth-engine/datasets/tags/monthly) [oregonstate](/earth-engine/datasets/tags/oregonstate) [precipitation](/earth-engine/datasets/tags/precipitation) [pressure](/earth-engine/datasets/tags/pressure) [prism](/earth-engine/datasets/tags/prism) [temperature](/earth-engine/datasets/tags/temperature) [vapor](/earth-engine/datasets/tags/vapor) [weather](/earth-engine/datasets/tags/weather) \n\n#### Description\n\nThe PRISM daily and monthly datasets are gridded climate\ndatasets for the conterminous United States, produced by the\nPRISM Climate Group at Oregon State University.\n\nGrids are\ndeveloped using PRISM (Parameter-elevation Regressions on Independent\nSlopes Model). PRISM interpolation routines simulate how weather\nand climate vary with elevation, and account for coastal effects,\ntemperature inversions, and terrain barriers that can cause rain\nshadows. Station data are assimilated from many networks across\nthe country. For more information, see the [Descriptions of PRISM\nSpatial Climate Datasets](https://www.prism.oregonstate.edu/documents/PRISM_datasets.pdf).\n\n**Note**\n\n- **Warning** , this dataset should not be used to calculate century-long climate trends due to non-climatic variations from to station equipment and location changes, openings and closings, varying observation times, and the use of relatively short-term networks. Please see the [dataset\n documentation](https://www.prism.oregonstate.edu/documents/PRISM_datasets.pdf) for more details.\n- It takes time for observation networks to conduct quality control and release station data. Therefore, PRISM datasets are re-modeled several times until six months have elapsed, when they are considered permanent. A [release schedule is\n available](https://www.prism.oregonstate.edu/calendar/).\n- For use of the 30 arc-second (\\~800 m) version of this dataset please contact the provider at prism-questions@nacse.org.\n\n### Bands\n\n\n**Pixel Size**\n\n4638.3 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|----------|-------|----------|-----------|------------|-------------------------------------------------------------------------|\n| `ppt` | mm | 0\\* | 2639.82\\* | meters | Monthly total precipitation (including rain and melted snow) |\n| `tmean` | °C | -30.8\\* | 41.49\\* | meters | Monthly average of daily mean temperature (calculated as (tmin+tmax)/2) |\n| `tmin` | °C | -35.11\\* | 34.72\\* | meters | Monthly minimum temperature |\n| `tmax` | °C | -29.8\\* | 49.74\\* | meters | Monthly average of daily maximum temperature |\n| `tdmean` | °C | -30.7\\* | 26.76\\* | meters | Monthly average of daily mean dew point temperature |\n| `vpdmin` | hPa | 0\\* | 44.79\\* | meters | Monthly average of daily minimum vapor pressure deficit |\n| `vpdmax` | hPa | 0.009\\* | 110.06\\* | meters | Monthly average of daily maximum vapor pressure deficit |\n\n\\* estimated min or max value\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|---------------------------|-------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| PRISM_CODE_VERSION | STRING_LIST | List of code versions per-band, e.g: the first element is for the first band \"ppt\", the second element is for the second band \"tmean\" |\n| PRISM_DATASET_CREATE_DATE | STRING_LIST | List of original creation dates per-band |\n| PRISM_DATASET_FILENAME | STRING_LIST | List of original filenames for each band |\n| PRISM_DATASET_TYPE | STRING_LIST | List of dataset types per-band |\n| PRISM_DATASET_VERSION | STRING_LIST | List of dataset versions per-band e.g: D1 or D2 for daily products; M1, M2 or M3 for monthly products. |\n| status | STRING | Data generated within 30 days of observation have the status \"early\". Data generated within 1-6 months of observation may have the status \"provisional\" and data older than 6 months are marked as \"permanent\". |\n\n### Terms of Use\n\n**Terms of Use**\n\nThese PRISM datasets are available without restriction\non use or distribution. PRISM Climate Group does request that the\nuser give proper attribution and identify PRISM, where applicable,\nas the source of the data.\n\n### Citations\n\nCitations:\n\n- [Daly, C., Halbleib, M., Smith, J.I., Gibson, W.P., Doggett, M.K.,\n Taylor, G.H., Curtis, J., and Pasteris, P.A. 2008. Physiographically-sensitive\n mapping of temperature and precipitation across the conterminous\n United States. International Journal of Climatology, 28: 2031-2064](https://www.prism.oregonstate.edu/documents/pubs/2008intjclim_physiographicMapping_daly.pdf)\n- \\[Daly, C., J.I. Smith, and K.V. Olson. 2015. Mapping atmospheric\n moisture climatologies across the conterminous United States. PloS\n ONE 10(10):e0141140.\n [doi:10.1371/journal.pone.0141140](https://doi.org/10.1371/journal.pone.0141140).\n\n### DOIs\n\n- \u003chttps://doi.org/10.1371/journal.pone.0141140\u003e\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('OREGONSTATE/PRISM/AN81m')\n .filter(ee.Filter.date('2018-07-01', '2018-07-31'));\nvar precipitation = dataset.select('ppt');\nvar precipitationVis = {\n min: 0.0,\n max: 300.0,\n palette: ['red', 'yellow', 'green', 'cyan', 'purple'],\n};\nMap.setCenter(-100.55, 40.71, 4);\nMap.addLayer(precipitation, precipitationVis, 'Precipitation');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/OREGONSTATE/OREGONSTATE_PRISM_AN81m) \n[PRISM Monthly Spatial Climate Dataset AN81m](/earth-engine/datasets/catalog/OREGONSTATE_PRISM_AN81m) \nThe 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 ... \nOREGONSTATE/PRISM/AN81m, climate,geophysical,monthly,oregonstate,precipitation,pressure,prism,temperature,vapor,weather \n1895-01-01T00:00:00Z/2025-07-01T00:00:00Z \n24 -125 50 -66 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.1371/journal.pone.0141140](https://doi.org/https://www.prism.oregonstate.edu/)\n- [https://doi.org/10.1371/journal.pone.0141140](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/OREGONSTATE_PRISM_AN81m)"]]
