Green Bay Half Marathon

Mild 51°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 65°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 170 days

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Distance: 13.1mi

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About the Green Bay Half Marathon

The Green Bay Half Marathon covers 13.1 miles through the tree-lined streets of Ashwaubenon and Green Bay on the Sunday of race weekend. The route starts on Cormier Road outside the EPIC Event Center and passes Lambeau Field, home of the Green Bay Packers, on a fast, flat course with no steep climbs or descents. The course is USATF-certified.

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Race weekend

Sunday, May 16

7:00 AMMarathon (26.2 mi)

7:00 AMHalf Marathon (13.1 mi)

7:45 AM5K (3.1 mi)

Green Bay Half Marathon FAQ

When is the 2027 Green Bay Half Marathon?

The 2027 Green Bay Half Marathon will be held on Sunday May 16, 2027.

What is the time limit for the Green Bay Half Marathon?

The time limit for the Green Bay Half Marathon is 6 hours.

What will the weather be like for the 2027 Green Bay Half Marathon?

The forecast calls for a high of 66°F and a low of 48°F with a 7% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the Green Bay Half Marathon?

Over the 25 years racecast.io has race-day weather for (2000 to 2026), it averaged 53°F at the start and 58°F by a typical finish. Rain fell during race hours in 3 of those years (2004, 2005 and 2017).

What was the hottest Green Bay Half Marathon?

Of the 25 years on record, 2012 was the warmest, reaching 80°F during race hours. The coldest start was 2007, at 39°F.

What was the windiest Green Bay Half Marathon?

Of the 25 years on record, 2011 was the windiest, with wind averaging 28 mph during race hours. The calmest was 2015, at 2 mph.

Green Bay Half Marathon weather history

Based on 25 years of data

Avg Temp

55°F

L:53° H:58°

RunScore

Conditions

Rain Freq

12%

3 of 25 yrs

Wind9mph

Dew46°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Green Bay Half Marathon Partly cloudy throughout the day with rain. 2026	47°/48°	-	41°
2025 Green Bay Half Marathon Cloudy skies throughout the day. 2025	50°/50°	-	40°
2024 Green Bay Half Marathon Clear conditions throughout the day. 2024	60°/67°	-	49°
2023 Green Bay Half Marathon Clear conditions throughout the day. 2023	51°/63°	-	45°
2022 Green Bay Half Marathon Partly cloudy throughout the day. 2022	61°/70°	-	43°
2019 Green Bay Half Marathon Clear conditions throughout the day. 2019	49°/50°	-	36°
2018 Green Bay Half Marathon Partly cloudy throughout the day with morning rain. 2018	54°/55°	-	52°
2017 Green Bay Half Marathon Partly cloudy throughout the day with rain clearing later. 2017	50°/54°	Light	52°
2016 Green Bay Half Marathon Clear conditions throughout the day. 2016	58°/63°	-	51°
2015 Green Bay Half Marathon Cloudy skies throughout the day with early morning rain. 2015	49°/51°	-	49°
2014 Green Bay Half Marathon Partly cloudy throughout the day. 2014	49°/55°	-	39°
2013 Green Bay Half Marathon Clear conditions throughout the day. 2013	60°/68°	-	57°
2012 Green Bay Half Marathon Clear conditions throughout the day. 2012	70°/80°	-	59°
2011 Green Bay Half Marathon Clear conditions throughout the day. 2011	47°/48°	-	28°
2010 Green Bay Half Marathon Clear conditions throughout the day. 2010	47°/56°	-	44°
2009 Green Bay Half Marathon Clear conditions throughout the day. 2009	40°/50°	-	28°
2008 Green Bay Half Marathon Partly cloudy throughout the day with afternoon rain. 2008	46°/50°	-	35°
2007 Green Bay Half Marathon Cloudy skies throughout the day. 2007	39°/40°	-	33°
2006 Green Bay Half Marathon Clear conditions throughout the day. 2006	41°/46°	-	30°
2005 Green Bay Half Marathon Partly cloudy throughout the day with morning rain. 2005	56°/64°	Light	53°
2004 Green Bay Half Marathon Cloudy skies throughout the day with rain. 2004	49°/50°	Moderate	49°
2003 Green Bay Half Marathon Partly cloudy throughout the day. 2003	52°/57°	-	51°
2002 Green Bay Half Marathon Clear conditions throughout the day with late afternoon rain. 2002	71°/79°	-	67°
2001 Green Bay Half Marathon Clear conditions throughout the day. 2001	62°/70°	-	58°
2000 Green Bay Half Marathon Clearing in the afternoon with early morning rain. 2000	64°/71°	-	66°