The Iowa Environmental Mesonet (IEM) collects environmental data from cooperating members with observing networks. The data are stored and made available on this website.
January Temperature Range
Posted: 17 Jan 2025 05:30 AM, Views: 1103
Temperatures warmed nicely on Thursday and with the slightly lengthening days, perhaps some of you were starting to dream of spring! Of course, we very much have a majority of the winter season yet to come and the near term forecast has the coldest air of the season arriving this very weekend. Today's featured chart checks in on the observed temperature range during January for Ames. The top panel shows the yearly maximum high temperature, middle panel presents the minimum low temperature, and finally the bottom panel shows the difference between the two (the range). Each dataset is fit with a simple average and a trailing 30 year average. Thanks to the lack of significant warmth and cold this year, the range is currently near the lowest of what has been observed on record. January is only half over, so there is plenty of time for each extreme to be exceeded and the range increased.
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Previous Years' Features
2024: '23-'24 Winter Storm #9
2023: '22-'23 Winter Storm #13
2022: Tonga wave passage #4
2021: January Dew Points
2018: Recent Dry Januaries
2017: Warmest Since Christmas
2016: Near Top of Range
2015: Wind Advisories
2012: Been warm up north too
2010: Fog, Fog, and more fog
2009: 3+ days below zero
2007: Wind roses
2005: Half as deep
2004: Weather Caucus
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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.