Explore NOAA SSOD Daily Weather Stations

Discover NOAA/NCEI SSODv2 stations worldwide and compare UTC-day temperature, wind, pressure, visibility, and precipitation summaries.

NOAA SSODv2 overview

Climate Explorer provides an independent interface for the NOAA/NCEI SSODv2 global daily archive. Climate Explorer is not affiliated with NOAA. SSODv2 provides meteorological summaries for stations in the United States, Canada, and countries worldwide, including UTC-aligned temperature, wind, and precipitation.

NOAA/NCEI maintains and publishes SSODv2 summaries assembled from contributed synoptic reports. Climate Explorer retrieves, parses, and presents those records; NOAA/NCEI remains the authoritative source for the archive, summary definitions, and documentation.

Pro Tip

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Dataset facts

Official source

NOAA NCEI SSODv2.

Coverage

Many thousands of stations worldwide, with station-specific periods of record that can extend across many decades.

Update frequency

NOAA updates the archive daily.

Licence

CC0 1.0 Universal Public Domain Dedication; retain NOAA/NCEI attribution and source metadata.

Important limitation

SSOD’s UTC day may differ from a station’s local reporting day. NOAA also cautions that precipitation can be underreported in synoptic messages and that reported daily maximum and minimum temperatures may not capture the true daily extremes.

What you can discover

Use the map and station catalog to discover where SSODv2 records are available, then compare selected daily summaries in the Dashboard. Depending on the contributing reports, a station may provide mean, maximum and minimum temperature; dew point; sea-level or station pressure; visibility; wind; precipitation; snow depth; and weather indicators.

One shared definition of a day

SSOD aligns summaries to one UTC calendar day (00:00–23:59 UTC). That common interval helps with cross-station screening, but it can span parts of two local calendar dates. Read what an SSOD date means across time zones before treating a result as a local-day value.

Best use

The Explorer is best for discovering stations, tracing event sequences, and screening daily conditions on a consistent UTC basis. For an official rainfall total, temperature extreme, or record claim, verify the value against the responsible national meteorological service or a suitable daily climate product.

Try a documented example

A short station sequence is more informative than an abstract feature list:

  1. Open the Central Park SSOD view for 1–23 July 2026.
  2. Confirm the station identifier, USW00094728, before reading the series.
  3. Inspect maximum temperature for 1–4 July and open Data to check the displayed rows and gaps.
  4. Read the Central Park heatwave case study to see how the principal value was checked against an official local report.

For exact instructions, exports, parameter definitions, completeness checks, and troubleshooting, use the SSOD task guide.

Interpret the display responsibly

  • Confirm identity: record the station name and identifier; nearby stations are not interchangeable.
  • Keep the time basis explicit: every displayed date is an SSOD UTC summary day, not automatically a local climatological day.
  • Treat blanks as unavailable: a missing value is not zero. Measurement counts can describe how many reports contributed, but do not certify a complete extreme or total.
  • Match the variable to the question: mean, maximum, and minimum temperature describe different properties of the day.
  • Verify consequential claims: NOAA cautions that precipitation may be underreported and that SSOD maximum and minimum temperature may not capture true daily extremes.

To place a daily sequence in climate context, use a matched station, variable, and calendar period in the WMO Normals Explorer. A normal is a reference, not a forecast or a complete explanation of an event.

Data source

Frequently Asked Questions

What is the SSOD dataset?

SSOD stands for Synoptic Summary of the Day. It is a comprehensive database maintained by NOAA providing daily weather observations aligned to UTC.

Why is UTC alignment important?

It aligns all aggregations to a UTC calendar day (00:00 to 23:59 UTC) rather than local climatological days, supporting consistent comparisons between stations in different time zones.

Does SSOD include daily weather observations for the United States and Canada?

Yes. Choose United States or Canada in the country filter to find available NOAA SSOD station records. The explorer provides UTC-day summaries, while record length and available variables differ by station and period.

Can SSOD alone confirm an official daily record?

No. SSOD is useful for screening and reconstructing UTC-day sequences, but NOAA notes that synoptic precipitation may be underreported and that maximum or minimum temperature may not capture the true daily extreme. Verify record claims with the responsible national meteorological service or an appropriate daily climate product.

Does Climate Explorer produce the SSOD summaries?

No. Climate Explorer is an independent interface and is not affiliated with NOAA. NOAA/NCEI maintains and publishes SSODv2 summaries assembled from contributed synoptic reports; Climate Explorer retrieves, parses, and presents those records.