The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.

IEM Daily Feature

Hours Below Zero


Posted: 15 Feb 2019 05:33 AM, Views: 1415
Some parts of Iowa enjoyed a brief warmup for Valentine's Day before a cold front swept the state clean of the warm air and blew around the snow again causing travel troubles. The wind and cold temperatures combined to produce sub zero wind chills again. The featured chart presents stats on the frequency of having sub zero wind chills during the Dec, Jan, Feb winter season for Des Moines. Of course while this February is only half done, the totals this year aren't too bad when compared with other previous winters and even less than last winter. The brutal winters of 1978 and 1979 are noticeable on this chart. The current forecast indicates we will add to our totals with not much significant warmth for the rest of this month.
Rate Feature

Previous Years' Features
NWS Snowfall Reports:
Marion, IA Webcam:
News Items  

ASOS/Metar Download Improvements
Posted: 13 Feb 11:12 AM

mesonet-nexrad service outage/change
Posted: 07 Jan 04:01 PM

23 Nov: NWS Data Outage [resolved]
Posted: 23 Nov 11:55 AM

Dr Ray Arritt Obituary
Posted: 19 Nov 02:37 PM

ISUSM Station Move Adel to Ames
Posted: 16 Nov 08:37 AM

Sign up for the Daily Bulletin

Current Website Performance:
Bandwidth: 8.5 MB/s
Requests/Second: 1,852

Soil Temperatures

Data from the Iowa State Soil Moisture Network is found on this website and daily soil temperature averages are used to produce the highlighted analysis.

Precipitation

Besides point observations of precipitation, the IEM also processes gridded rainfall products made available by NOAA. This information is archived and made available in GIS ready formats.

Download Precipitation for GIS »

Current Data

The IEM combines data from participating networks into products like maps shown above and web applications to analyze the data.

More current products »

Partners:

ISU Agronomy
IIHR - University of Iowa
DOT
NWS