Tropical Storm Francine is forecast to strengthen into a hurricane before reaching the northwestern Gulf coast Wednesday. Life-threatening storm surge, strong winds and heavy rainfall is expected along the Upper Texas and Louisiana coastlines. Heavy showers and gusty winds are likely across Guam through Wednesday night as a result of Tropical Depression Bebinca. Read More >
Western Region Headquarters
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| Unit of Measurement | Number of Hours to Retrieve | Page Headers | See Chart | Gather Historical Data | Observation Type | Show Only Hourly Data | Font Size | Precip. View |
|---|---|---|---|---|---|---|---|---|
| Standard (w/mph) Metric Standard (w/kts) | Standard Minimal None | On Off | On | Tabular METARs (NWS/FAA Only) | Yes No | Full Standard Measured | Apply Settings |
By default, this page will load with all station data collected in the last 72 hours, with the station identifier as the "site" variable in the URL Example: https://www.weather.gov/wrh/timeseries?site=kslc If the station reports Temperature, Relative Humidity, or Dew Point Temperature, a chart will be available with those elements to examine. Below the chart, a table will appear with 72 hours worth of data from that station. Hovering over certain headings will reveal a "magnifying glass" cursor. That means that if you click on that heading, data for that element will load into the chart. Note: Data availability varies by station. Pages With and Without Chart
To view charts for additional elements, using a mouse, move the cursor over the element headings. If a "magnifying glass" cursor appears, it means that if you click on that heading, data for that element will load into the chart. See image below.
The following weather elements are available for viewing in a chart. Note: Data availability varies by station.
Mouse over Chart Headings to reveal Magnifying Glass, Then Click for Chart
Clicking the "Settings" icon will open an area where you can select different viewing parameters.
Hourly ASOS data with "Special" Observations
Cloud height sensors can measure clouds up to 12,000 feet above the ground, when the cloud is directly above the sensor.
This limitation can result in "Clear" conditions being reported, when clouds are above 12,000 feet.
At major airports, this information can be augmented by a trained observer, who can also determine heights greater than 12,000 feet.
Decoding Cloud Data
Precipitation (precip) can be measured 2 different ways: Using a weighing mechanism, or by using a tipper.
Precipitation is reported in 5, 10, 15, 30, or 1 hour increments. Values for 3, 6, or 24 hour precipitation are extrapolated from those reports, and are displayed hourly, or every 3, 6, or 12 hours (for 24 hour precip).
If a station reports precipitation, the "top line" of data will always include precip over the last 1, 3, 6, and 24 hours, relative to that time.
Explanation of 1, 3, 6 and 24 hour Totals
Snow depth is generally measured by probes mounted above a surface. They measure the distance between the probe and a surface. As snow accumulates or melts/blows away, that measurement will change.
"Snowfall" calculations are made by taking the snow depth measurement at a given time, and subtracting the snow depth from 3, 6, or 24 hours previous to time the current snow depth value was recorded. Negative values are not recorded.
If a station reports snow depth, the "top line" of data will always include snowfall over the last 1, 3, 6, and 24 hours, relative to that time.
Explanation of 3, 6 and 24 Hour Snowfall
Data can be downloaded by clicking the 3 lines in hte upper right corner of the chart, and clicking "Download CSV or Download XLS"
Example of Downloading Data
If you notice data inconsistencies, or errors with this page, do not report those to us. Data is provided to this page through many different entities, and the maintainers of this page are not in contact with those entities. Your best course of action with regard to data accuracy may be to contact the local NWS office where this station lies. In some cases, they MAY be able to contact the responsible party. Refer to the image below. The NWS office under which the station is installed is available by clicking the 3 letter identifier, and finding their contact information.
Aside from issues referenced above, please provide feedback, or report issues with this page by sending email to wr.web.support@noaa.gov
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