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HOME > Monitoring and Data > U.S. Climate Data > Precipitation & Temperature > Daily Temperature Analyses > Temperature Analyses

Select a date, type of image, and range of days, then click "DISPLAY!" to display the images below.
Release schedule of maps :
Daily Update - 1500Z
mean, maximum / minimum - 1 day ago

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Stations Used in Latest Daily Analyses

To access final, quality controlled data, visit NCEI . These plots use preliminary real-time data.

About the Analyses

DATA SOURCE: Climate Assessment Data Base (CADB) ~1500 stations per day. Climatologies used to calculate the anomalies were updated to use the 1991-2020 climatology dataset as of June 29, 2021.

RESOLUTION: 0.5 degree x 0.5 degree

DOMAIN: 20N - 60N; 140W - 60W

FORMAT: The format is sequential 32-bit IEEE floating point created on a big_endian platform (e.g. cray, sun, sgi and hp). The undefined (missing) value is 9999.

WINDOW: Day 1 analysis is valid for the window from 06Z on day 0 to 06Z on day 1

ANALYSIS SCHEME: Shepard algorithm

QUALITY CONTROL: Climatological standard deviation check. If a reported value is more than 4 standard deviations removed from the historical distribution, the value is omitted from the analysis.


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