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National Current Conditions

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The Drought.gov team reformats data from multiple partners into web- and GIS-ready formats, which we use throughout Drought.gov. These data, hosted on Google Cloud Storage, are free for all to download or reference directly from their web applications.

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Statistics
Dataset Name

Percentage of the U.S. in Drought

Update Schedule
Updates Weekly
Last Update
07/15/25

Drought area percentages were ingested using U.S. Drought Monitor web services.

Source(s)
Dataset Name

Acres of Crops in Drought

Update Schedule
Updates Weekly
Last Update
07/17/25

GIS was used to identify which agricultural producing counties contained drought according to the U.S. Drought Monitor (D1 - D4). Acres were aggregated to identify the number of crop acres in drought.

This statistic includes a subset of major crops: Corn, Cotton, Hay, Haylage, Rice, Sorghum, Soybean, and Wheat. 

Data are available from the USDA National Agricultural Statistics Service's Agricultural Census, which is conducted every 5 years.

Source(s)
Dataset Name

People Affected by Drought

Update Schedule
Updates Weekly
Last Update
07/15/25

Drought population percentages were ingested using U.S. Drought Monitor web services.

Source(s)
Dataset Name

States Experiencing Drought

Update Schedule
Updates Weekly
Last Update
07/17/25

State-level U.S. Drought Monitor drought data were used to identify the number of states in (D1-D4) drought. Current weekly values are compared to the previous week and month to identify changes.

Source(s)
Map Cards
Map
Dataset Name

U.S. Drought Monitor

Update Schedule
Data Valid
Last Update
07/15/25

U.S. Drought Monitor (USDM) data from the National Drought Mitigation Center were available in a GIS format. The USDM is jointly produced by the National Drought Mitigation Center, the National Oceanic and Atmospheric Administration, and the U.S. Department of Agriculture. The map is updated weekly on Thursday mornings, with data valid through Tuesday of that week.

Source(s)
Update Schedule

The U.S. Drought Monitor map is released every Thursday morning, with data valid through Tuesday at 7 am Eastern.

Map
Dataset Name

U.S. Drought Monitor 1-Week Change Map

Update Schedule
Data Valid
Last Update
07/15/25

U.S. Drought Monitor (USDM) data from the National Drought Mitigation Center were available in a GIS format. The USDM is jointly produced by the National Drought Mitigation Center, the National Oceanic and Atmospheric Administration, and the U.S. Department of Agriculture. The map is updated weekly on Thursday mornings, with data valid through Tuesday of that week.

Current weekly U.S. Drought Monito data is compared with the previous week to identify changes.

Source(s)
Update Schedule

U.S. Drought Monitor change maps are released every Thursday morning, with data valid through Tuesday at 7 am Eastern.

Map
Dataset Name

Precipitation Conditions: Last 7 Days (gridMET, NLDAS)

Update Schedule
Data Valid
Last Update
07/19/25

The gridMET and NLDAS precipitation datasets from Climate Engine were available in raster format. Precipitation data update daily but are delayed from the current day by 3 to 4 days to allow for data collection and quality control.

Source(s)
Update Schedule

Precipitation data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Map
Dataset Name

Precipitation 30-day % of Normal (gridMET, NLDAS)

Update Schedule
Data Valid
Last Update
07/19/25

The GridMET and NLDAS precipitation datasets from Climate Engine were available in raster format.  Precipitation data update daily but are delayed from the current day by 3 to 4 days to allow for data collection and quality control.

Source(s)
Update Schedule

Precipitation data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Map
Dataset Name

Precipitation 60-day % of Normal (gridMET, NLDAS)

Update Schedule
Data Valid
Last Update
07/19/25

The GridMET and NLDAS precipitation datasets from Climate Engine were available in raster format.  Precipitation data update daily but are delayed from the current day by 3 to 4 days to allow for data collection and quality control.

Source(s)
Update Schedule

Precipitation data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Map
Dataset Name

Temperature: 7-Day Average Maximum (gridMET, PRISM)

Update Schedule
Data Valid
Last Update
07/19/25

The GridMET and PRISM temperature datasets from Climate Engine were available in raster format. Temperature data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Source(s)
Update Schedule

Temperature data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Map
Dataset Name

Maximum Temperature: 7-Day Departure from Normal (gridMET, PRISM)

Update Schedule
Data Valid
Last Update
07/19/25

The GridMET and PRISM temperature datasets from Climate Engine were available in raster format. Temperature data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Source(s)
Update Schedule

Temperature data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Map
Dataset Name

Maximum Temperature: 30-Day Departure from Normal (gridMET, PRISM)

Update Schedule
Data Valid
Last Update
07/19/25

The GridMET and PRISM temperature datasets from Climate Engine were available in raster format. Temperature data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Source(s)
Update Schedule

Temperature data are updated daily, with a delay of 3 to 4 days to allow for data collection and quality control.

Map
Dataset Name

Evaporative Demand Drought Index: 1 Week

Update Schedule
Data Valid
Last Update
07/17/25

EDDI data from NOAA's Physical Sciences Laboratory (PSL) were available in ACSII format. The ASCII data was ingested and converted raster data using GIS. EDDI data are updated daily with a 5-day lag.

EDDI is calculated from observations of the atmosphere near the land surface: temperature, humidity, windspeed, and solar radiation. EDDI doesn’t directly measure on-the-ground conditions—though EDDI values are strongly influenced by surface moisture conditions.

EDDI uses a classification scheme that is equivalent to the U.S. Drought Monitor percentile categories (D0, D1, D2, etc.).

Source(s)
Update Schedule

The Evaporative Demand Drought Index is updated daily, with a 5-day delay. This delay results from the procedures to quality control the meteorological data used to estimate evaporative demand. 

Map
Dataset Name

Evaporative Demand Drought Index: 4 Week

Update Schedule
Data Valid
Last Update
07/17/25

EDDI data from NOAA's Physical Sciences Laboratory (PSL) were available in ACSII format. The ASCII data was ingested and converted raster data using GIS. EDDI data is updated daily. 

Source(s)
Update Schedule

The Evaporative Demand Drought Index is updated daily, with a 5-day delay. This delay results from the procedures to quality control the meteorological data used to estimate evaporative demand. 

Map
Dataset Name

USGS Streamflow Conditions

Update Schedule
Data Valid
Last Update
07/22/25

Streamflow data were available in a GIS format from the U.S. Geological Survey (USGS) WaterWatch. 

Source(s)
Update Schedule

This map updates daily on Drought.gov. View the most recent real-time streamflow data via USGS.

Map
Dataset Name

USGS Streamflow Conditions: 28-Day Average

Update Schedule
Data Valid
Last Update
07/22/25

Streamflow data were available in a GIS format from the U.S. Geological Survey (USGS) WaterWatch. 

Source(s)
Update Schedule

This map updates daily on Drought.gov. View the most recent real-time streamflow data via USGS.

Map
Dataset Name

NASA SPoRT-LIS 0-100 cm Soil Moisture Percentile

Update Schedule
Data Valid
Last Update
07/22/25

NASA’s Short-term Prediction and Transition Center – Land Information System (SPoRT-LIS) provides high-resolution (about 3-km) gridded soil moisture products in real-time to support regional and local modeling and improve situational awareness. The 0–100 cm soil moisture percentile data has shown to be a utility for drought monitoring. The near-surface (0–10 cm) layer responds quickly to heavy precipitation and rapidly drying events. In deeper layers, soil moisture evolves more slowly and has demonstrated greater utility overall for drought monitoring purposes since drought evolves typically on timescales of weeks to years. 

The 0–100 cm soil moisture percentiles use a 1981–2013 soil moisture climatology.

Soil moisture data from NASA Short-term Prediction Research and Transition Center (SPoRT) were available in raster format.

Source(s)
Update Schedule

This map updates daily with data from NASA's Short-term Prediction and Transition Center – Land Information System (SPoRT-LIS).

Map
Dataset Name

Crop-CASMA: Sub-9km Soil Moisture Anomaly

Update Schedule
Data Valid
Last Update
07/17/25

Soil moisture data from Crop-CASMA were available in GeoTIFF format. GIS software used the GeoTIFF format to create the map tiles used on Drought.gov.

Source(s)

NASA, USDA, George Mason University

Update Schedule

Data are updated daily, with a 3-day delay.