As part of the University of Wisconsin–Madison’s Rural Partnerships Institute, the SCO collects, analyzes, and shares climate information.
Univ. of Wisconsin-Madison
Joined March 2023
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Wisconsin State Climatology Office retweeted
Just in: El Nino looms large over U.S. Winter Outlook
Expected impacts include warmer North, wetter South and East
--> News release + map images at noaa.gov/news-release/el-nin…
Via @NWS @NWSCPC
#WinterOutlook #ElNino
High chances of frost Friday night, as most of the state will see temperatures fall below 36° with light winds. #wiwx
The Wisconsin Frost/Freeze Decision Support page is a great way to evaluate local frost & freeze probabilities. weather.gov/mkx/FrostFreezeP…
Wisconsin State Climatology Office retweeted
37 degree temperature range from northern Wisconsin (Bayfield) to southern Wisconsin (Yorkville)!
These 80-degree temps feel a lot more like August than October! 🥵 Some cities broke daily high-temperature records over the weekend, but no monthly records have fallen yet.
The state's hottest October temperature was 96ºF on October 3, 1938, in Mondovi! #wiwx
Northern WI is now experiencing the largest exceptional drought in state record.
This year is very unique, as people in southern WI might think "What drought?" Drought has been confined to the northern, as opposed to 2023 when dryness was widespread. #wiwx
We're already waving goodbye to September! ☀️
After a burst of warmth early in the month, temperatures turned cooler than average. Central and southern Wisconsin were doused with rain, but unfortunately the driest areas in the north missed out. #wiwx
See what's in store for October in the outlook posted on our website! 🎃
climatology.nelson.wisc.edu/…
Wisconsin State Climatology Office retweeted
Have you taken the time to explore our newly revised Climate Summary Tables for your Midwestern city?
Now including dynamic updates that capture extreme precipitation & temps once records are broken 🌡️
Climate Summary Tables ➡️ mrcc.purdue.edu/mw_climate/c…
ALT Climate Summary Table for Lafayette maximum and minimum records for each month in th eperiod of record
ALT Climate Summary Table for Lafayette detailing number of days at extreme thresholds for each month
ALT Climate Summary Table detailing normals for Lafayette
Since June 1, much of northwest Wisconsin has received less than half the normal rainfall.
Exceptional drought now covers parts of Douglas, Bayfield, Ashland, and Iron counties.
This is only the 2nd time this level of drought has impacted WI since monitoring began in 2000 #wiwx
Wisconsin State Climatology Office retweeted
Happy Fall #Equinox (or Spring Equinox for our friends in the Southern Hemisphere)! Here is @NOAASatellites #GOESWest ABI every satellite sunrise (~15 UTC) "CIMSS Natural Color" composite image from equinox to equinox (Mar 20, 2026 to Sep 22, 2026).
Wisconsin State Climatology Office retweeted
That's a freeze times two!
Maple got down to 32 today and Knight hit 29!
The autumnal equinox hits at 7:05 pm tonight, and the weather is certainly reflecting it!
Wisconsin State Climatology Office retweeted
Fall arrives today at 8:05 pm ET! 🍂
Today’s Fall Equinox marks the start of astronomical fall in the Northern Hemisphere and is the moment when the Sun is directly over Earth’s equator. From now through the Winter Solstice on December 21, the Northern Hemisphere will receive increasingly less direct sunlight as Earth continues along its tilted orbit around the Sun.
Wisconsin State Climatology Office retweeted
We're excited to say that 4 weeks from tomorrow is the 3rd Annual Wisconsin Weather Festival at @uwenergy!
Join us, the @WI_ClimateSCO, @NWSMilwaukee, @WISCTV_News3, and more to learn about weather and climate in Wisconsin!
wisconet.wisc.edu/events/wea…
For some parts of northwest Wisconsin, last night brought the first half-inch of rain in over 8 weeks! It's not much to dent the drought, but every bit is beneficial. #wiwx
Next week's forecast is looking a lot like fall! ☕
Here's when many locations in Wisconsin typically see their first cool fall day and first very chilly morning.
Last year, central Wisconsin got an early taste of fall while the southern region had an extended summer! #wiwx
Wisconsin State Climatology Office retweeted
El Niño is strengthening, with a greater than 90% chance of a very strong event during the Northern Hemisphere fall and winter 2026-27. An #ElNino Advisory remains in effect. #ENSO cpc.ncep.noaa.gov/products/a…
ALT A bar chart showing the chance of El Niño (red bars), ENSO-Neutral (grey bars), and La Niña (blue bars) provided for 9 upcoming, overlapping 3-month seasons (each letter represents a month, for example, F = February). The color shading within the bars indicates the chances of different categories of El Niño or La Niña strength (weak, moderate, strong, and very strong). Alternatively, the table at the internet address below presents the percent chances of each strength category in numerical form. https://cpc.ncep.noaa.gov/products/analysis_monitoring/enso/roni/strengths/
Wisconsin State Climatology Office retweeted
The new Drought Monitor is out. There isn't a significant change from last week, but a little bit more of southern Wisconsin has been added to the Abnormally Dry category.
Most of the state received less than an inch of rain in the past week and soils continue to dry out.
August was a quieter weather month for Wisconsin, though the lack of rain allowed drought to steadily expand in the north. #wiwx
See what's ahead for September and the fall season on our website! 🌾
