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Weather on May 21

Madison, WI

55 Years of Data

Avg High
72°F
Avg Low
47°F
Warmest
1975
75°F avg
Coldest
2002
42°F avg

About This Date

May 21st in Madison, WI typically brings pleasant spring weather, with average highs around 72°F and lows near 47°F — a 25°F daily swing. Over 56 years of records, the warmest May 21st was in 1975 (75°F average), while the coldest was 2002 (42°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 25% of May 21st dates historically, with the wettest May 21st recording 3.12" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for May 21st in Madison, WI? Great weather for outdoor activities.

Cooling Trend
0.9°F per decade on this date
YearHighLowAvgPrecipSnow
202663°43°53°
202547°42°44°1.4"
202468°53°61°1.78"
202375°44°60°
202264°46°55°
202180°69°75°
202072°52°62°
201959°45°52°0.03"
201858°47°52°0.2"
201757°46°52°1.93"
201672°42°57°
201556°38°47°
201485°56°70°0.18"
201381°62°71°
201282°48°65°
201178°57°68°
201078°52°65°0.76"
200983°59°71°
200865°35°50°
200759°44°52°
200675°42°59°
200571°47°59°0.13"
200485°53°69°
200362°36°49°
2002coldest54°31°42°
200177°59°68°3.12"
200067°42°54°
199970°52°61°
199872°42°57°
199759°28°44°
199668°49°58°1.14"
199571°44°58°
199484°45°64°
199360°37°49°
199288°48°68°
199180°43°61°
199050°43°46°
198976°41°58°
198884°45°64°
198773°57°65°1.3"
198664°35°50°
198569°44°57°
198480°51°66°
198370°50°60°0.05"
198267°43°55°
198181°44°62°
198041°
197972°36°54°
197874°44°59°
197792°58°75°0.23"
197684°43°63°0.05"
1975warmest87°63°75°
197475°56°65°
197372°47°59°
197288°54°71°
197165°44°54°
56 years of data from UW ARBORETUM - MADISON

Madison, WI Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

0°20°40°60°80°JFMAMJJASOND
Avg high Avg low

Madison, WI Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"6"11.9"JFMAMJJASOND1.7"0"
Rain (in) Snow (in)

Madison, WI Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Madison, WI

Madison, WI has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

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