Temperature, Precipitation, and Drought
Temperature, precipitation, and drought data and products
Alaska Temperature and Precipitation
NCDC added Alaska climate divisions to its nClimDiv dataset on Friday, March 6, 2015, coincident with the release of the February 2015 monthly monitoring report. For more information on this data, please visit the Alaska Climate Divisions FAQ.
ASOS Temperature Departure & Degree Day Maps
Daily updates of temperature and precipitation versus normal for several hundred U.S. automated stations, including Alaska and Hawaii. Users can loop these images through a multi-day animation.
Monthly U.S., Statewide, Divisional, and Regional 1-12, 18, 24, 36, 48, 60-month, and Year-to-Date Temperature, Precipitation, Degree Days, and Palmer (Drought) Rankings
National Temperature Index
Several different methodologies to estimate the temperature history of the contiguous United States, including NCDC's current operational version. Users can graph, compare and save the output from these different methods.
National Temperature and Precipitation Maps
Current, 3-Month, 6-Month, 12-Month, and Year-to-Date National, Divisional, Statewide, and Regional Temperature and Precipitation Rank Maps
Climate at a Glance: U.S. Time Series Plots
National temperature, precipitation, drought, and degree days time series
U.S. Percentage Areas (Very Warm/Cold, Very Wet/Dry)
This product shows, for each month, season and year since 1895, how much of the contiguous United States experienced extreme (top or bottom 10%) temperature and precipitation conditions.
Weekly Divisional Products
Maps of weekly temperature and precipitation anomalies, and short term Palmer drought indices are produced from CPC data.
State annual and seasonal time series and decadal average temperature maps
Global Temp & Precip Maps
Monthly, Seasonal, and Annual Global Temperature, Precipitation, and Extremes Maps
Global Surface Temperature Anomalies
Climate at a Glance: Global Time Series Plots
Global temperature anomaly time series
The Merged Land & Ocean Surface Temperature data are presented as anomalies (departures from a long-term average) on a five-degree by five-degree global grid. The period of record is January 1880 through the most recent month.
- Climate at a Glance: Global Time Series Plots
Upper Atmospheric Temperatures
Temperature history for three different layers of the atmosphere: lower troposphere, middle troposphere, and lower stratosphere. These are different parts of the atmosphere than the more familiar surface temperature.
GHCN Gridded Products
GHCN Monthly Global Gridded Temperature and Precipitation Products
Drought Termination and Amelioration
Based on Palmer drought analysis, the precipitation required to end or ameliorate drought in 6 timescales (1- to 6-months), the percent of normal precipitation this amount is, and the probability of receiving this amount of precipitation based on the historical record
Historical Palmer Drought Indices
Create year-over-year animations of various Palmer-type drought analyses.
North American Drought Monitor (NADM)
Maps, narratives, indicators, and data depicting areas of drought and abnormally dry conditions across the North American continent, compiled from national analyses prepared in the U.S., Canada, and Mexico
Weekly Palmer Drought Indices
Weekly Palmer-type maps beginning in 2005.
- National Integrated Drought Information System (NIDIS)