February 2026 S M T W T F S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Archives
Categories
WeatherGuys Links
Category Archives: Meteorology
How is air pollution measured?
There are different sources of air pollution, including human-generated emissions from the burning of fossil fuel, as well as natural sources such as wildfires, volcanic eruptions and dust storms.
Particle pollution is referred to particulate matter (PM) and is made up of small, suspended solid or liquid particles. The amount and density of pollutants in the air are converted into an Air Quality Index (AQI). An AQI of less than 50 is considered safe, while unhealthy conditions have an AQI above 100. The chemical composition of the pollutant can also be a health concern. Continue reading
Is March weather susceptible to being unusual?
The adage about March weather coming “in like a lion, out like a lamb” was far off the mark for southern Wisconsin this year.
In Madison, it was not a particularly cold month as the average temperature was only 0.8 degrees below normal. However, we had the second-snowiest March ever — and snowiest since the record was set in 1959 — with 25.3 inches of accumulated snow. In addition, it snowed on 16 of the 31 days in the past month, so winter was unusually reluctant to loosen its grip. Continue reading
Category: Climate, Meteorology, Seasons
Comments Off on Is March weather susceptible to being unusual?
Comments Off on Is March weather susceptible to being unusual?
How did Madison get a foot of snow on Saturday?
The 12.1 inches of snow that fell over Madison in the first nine hours of Saturday morning was surely a surprise to many residents while setting the all-time monthly record. Forecasts made through the late afternoon on Friday, consistent with … Continue reading
What is the spring equinox?
The spring equinox marks the beginning of the spring season in the Northern Hemisphere. Also called the vernal equinox, it is the time of year when the sun rises due east and sets due west, no matter where you live. … Continue reading
How did this year’s winter rank?
Meteorological winter in the Northern Hemisphere is often defined as the three months of December, January and February. The just-ended winter of 2022-23 was notable in a number of ways.
First, here in Madison we started with a chilly month of December during which we averaged 0.8 degrees below normal. This was also the only month of the season in which we had a day with a high temperature below zero — minus 3 on Dec. 23. Continue reading
