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United States release article

United States CPI Inflation – Sep 11, 2026: 3.4

Official release row with the realised value, prior value, forecast field, exact announcement timestamp, and series chart in one canonical workspace.

Open CPI series API reference Release calendar
Actual
3.4
Previous
3.4
Forecast
3.36

FXMacroData Blended Forecast

Surprise
+0.04
Release time
2026-09-11 08:30 America/New_York

2026-09-11 12:30 UTC

Last updated:

USD CPI release chart

A release-date view of the official series, capped at the selected announcement so the chart matches the page timestamp.

United States CPI chart through 2026-08-31
USD CPI readings through 2026-08-31. Latest: 3.4.

USD CPI release context

The official Consumer Price Index inflation row printed 3.4 for 2026-08-31. The previous value was 3.4 and the forecast field was 3.36.

Use the chart above to compare this release with the recent series path, then use the API endpoint below for point-in-time event studies and model features keyed to the stable release ID.

Release data snapshot

The values below are the machine-readable citation fields for this announcement. The local and UTC timestamps are kept visible because event studies and trading systems need the exact public release moment, not just the date.

Public release ID usd_inflation_2026-09-11
API announcement ID usd_inflation_2026-08-31
Release time
2026-09-11 12:30 UTC
Reference period 2026-08-31
Actual value 3.4
Previous value 3.4
Forecast 3.36 FXMacroData Blended Forecast
Surprise +0.04
Announcement timestamp 1789129800

More USD CPI releases

Move through adjacent announcement records for the same inflation series.

Older release

2026-08-12 08:30 America/New_York · 3.4

Common questions about this release

The value, its publication time, the next scheduled date, and the official publisher for United States CPI inflation.

What did United States Inflation Rate (CPI/HICP) come in at, and how did it compare with the forecast and the previous reading?

United States Inflation Rate (CPI/HICP) was 3.4% year on year in August 2026. The forecast field was 3.36%. The previous reading was 3.4%. That is a surprise of +0.04 percentage points versus forecast.

When was this United States Inflation Rate (CPI/HICP) release published?

This release was published on Sep 11, 2026 at 08:30 America/New_York.

When is the next United States Inflation Rate (CPI/HICP) release?

The next United States Inflation Rate (CPI/HICP) release is scheduled for Oct 14, 2026 at 08:30 America/New_York.

What is the official source for United States Inflation Rate (CPI/HICP)?

BLS publishes the official Inflation Rate (CPI/HICP) series. FXMacroData stores every release with its announcement timestamp and serves it from the announcements endpoint for this series.

Raw announcement payload

Field names are preserved for traceability and downstream testing.

{
  "announcement_datetime": 1789129800,
  "announcement_datetime_local": "2026-09-11T08:30:00-04:00",
  "announcement_id": "usd_inflation_2026-08-31",
  "capture_time_basis": "first_fresh_fetch_completed",
  "change_from_previous": 0.0,
  "collected_at_iso": "2026-09-11T12:30:06.674742Z",
  "collected_at_ns": 1789129806674741407,
  "collected_at_ns_string": "1789129806674741407",
  "date": "2026-08-31",
  "forecast": 3.36,
  "forecast_source_label": "FXMacroData Blended Forecast",
  "ingestion_latency_ms": 6674.741,
  "ingestion_latency_reference": "official_planned_release_datetime",
  "observation_id": "usd_inflation_canonical_yoy_nsa_not_annualized_monthly_2026-08-31",
  "observed_at_ns": 1789129806674741407,
  "observed_at_ns_string": "1789129806674741407",
  "official_planned_release_datetime": 1789129800,
  "official_planned_release_datetime_local": "2026-09-11T08:30:00-04:00",
  "pct_change_from_previous": 0.0,
  "prediction_type": "fxmacrodata",
  "previous_announcement_datetime": 1786537800,
  "previous_date": "2026-07-31",
  "previous_value": 3.4,
  "publication_time_precision": "unknown",
  "publication_time_status": "unknown",
  "revisions": [
    {
      "capture_time_basis": "first_fresh_fetch_completed",
      "is_first_release": false,
      "observed_at_ns": 1789129806674741407,
      "observed_at_ns_string": "1789129806674741407",
      "publication_time_precision": "unknown",
      "publication_time_status": "unknown",
      "val": 3.4,
      "vintage_status": "captured_snapshot"
    },
    {
      "capture_time_basis": "first_fresh_fetch_completed",
      "is_first_release": false,
      "observed_at_ns": 1789129806819099577,
      "observed_at_ns_string": "1789129806819099577",
      "publication_time_precision": "unknown",
      "publication_time_status": "unknown",
      "val": 3.4,
      "vintage_status": "captured_snapshot"
    },
    {
      "capture_time_basis": "first_fresh_fetch_completed",
      "epoch": 1789129800,
      "is_first_release": false,
      "observed_at_ns": 1789137024147366938,
      "observed_at_ns_string": "1789137024147366938",
      "val": 3.4,
      "vintage_status": "captured_snapshot"
    }
  ],
  "source": "BLS",
  "source_url": "https://www.bls.gov/news.release/archives/cpi_09112026.htm",
  "source_url_scope": "release",
  "val": 3.4,
  "val_mom": 0.4,
  "vintage_status": "captured_snapshot"
}