Seasonal distribution of thunderstorms Airport (1948-present).Forecasters had warned that most of the 5 to 8 inches expected in the Chicago area from a storm system that’s blanketed much of the Midwest would fall before 3 a.m.Annual number of thunderstorm days at Airport (1948-present).Madison and Dane County Lake Level Data.Long-term variations in Modified Growing Degree Day UnitsĮxtreme Years for Temperature and Precipitation.(modified, base 50☏/ceiling 86☏ season runs 1 Jan - 31 Dec) Cumulative Freezing Degree Day Units for the winter seasons:.Cumulative Cooling Degrees Days for the Seasonįreezing Degree Days (base 32☏ season runs 1 July - 30 June).Heating Degree Days (base 65☏ season runs 1 July - 30 June)Ĭooling Degree Days (base 65☏ season runs 1 January - 31 December) Frequency of occurrence of a White Christmas (1 inch or more of snow cover at 6 am on 25 December) at the Madison Airport (1951-2020).Seasonal distribution of monthly average snow depth Airport (1981-2010).Number of days per season with four inches or greater snow cover on the ground at.Madison Period of Record -City & Airport (1904/05-present).Madison Airport Office (1940/41-present).Maximum depth of snow cover on the ground at.Number of days per season with one inch or greater snow cover on.Madison Airport Office (1939/40-present).Number of days per season with one inch or greater snowfall at Madison:.NOTE: Greatest calendar-day snowfall totals (based upon local midnight) at this station may not necessarily correspond with greatest 24-hour snowfall totals obtained from the hourly records.

Greatest daily snowfall total by snow season at Madison.Long-term seasonal snowfall since 1884/85.Daily Cumulative Snowfall (not snow depth).Precipitation Frequency Distribution for Madison Number of Days per year with one inch or greater precipitation at.Number of Days per year with measurable precipitation (0.01 inches or greater) at.NOTE: Greatest calendar-day precipitation totals (based upon local midnight) at this station may not necessarily correspond with greatest 24-hour precipitation totals obtained from the hourly precipitation records.Greatest daily precipitation total by year at.Long-term and Seasonal Precipitation ( explanation):.(commencing on 1 Oct for Water Year) 2001 Seasonal and Annual Mean Dew Point at Madison Airport Office (1948-present).Length of frost-free season (32☏ base) at.Period of record for Madison City & Airport (1869-present).Dates of last spring and first autumn occurrence of 32 degrees Fahrenheit or lower at.Number of Days per season with minimum temperature of 70 degrees Fahrenheit or higher at.Number of Days per season with maximum temperature of 90 degrees Fahrenheit or higher at.Madison Airport Office (1940/41-present seasons).Number of Days per season with minimum temperature of zero degrees Fahrenheit or lower at.Long-term and Seasonal High, Low, and Mean Temperature ( explanation): Spring, Summer, Autumn, Winter, and Annual.Daily High and Low Temperatures ( explanation).Hourly Weather Data (three-day history).Recent Months, Daily Normals, and Records.Comparison of Current (1971-2000) Normals with Past Normals.Average Hourly Dew Point Temperatures ( explanation).Average Hourly Temperatures ( explanation).Climatograph (temperature and precipitation) - What is a climatograph?.Normals for 1981-2010 from Midwestern Regional Climate Center.Monthly Normals for temperature, degree days, precipitation, snow and growing season generated by NCEI: Temperature and Precipitation Data from 1869 By Location Other Climate Data Links & MapsĬlimate Change Climate News Climate Education & Outreach Wisconsin Climate Watch Wisconsin Seasons Wisconsin Climate History Your climate information resource for Wisconsin John Young, Director Emeritus & Professor Emeritus Hopkins, PhD, Assistant State Climatologist Steve Vavrus, PhD, Director & State ClimatologistĮdward J. Wisconsin State Climatology Office - Madison Climate

Chicago snow totals by day 2017