What is the weather usually like on race day for the Ring in the New Year 5k, 10k, 15k, Half Marathon?

Based on the last 10 years of weather data for Simi Valley, CA, January race mornings typically start near 47°F and warm to around 63°F. On this calendar date it has rained in 3 of the last 10 years.

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Ring in the New Year 5k, 10k, 15k, Half Marathon

Simi Valley, CA

Sun, Jan 3, 2027

In 72 days · Sun, Jan 3, 2027

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When

Sunday, January 3rd, 2027

Where

1765 Royal Ave, Simi Valley CA

Distances

10K · 15K · Half · 5K

Typical weather

47–63°F · low rain risk

See last 10 years

On this date: rain 3 of the last 10 years

2026

55–59°F

rain

2025

49–69°F

dry

2024

47–57°F

rain

2023

47–55°F

rain

2022

36–59°F

dry

2021

44–64°F

dry

2020

52–71°F

dry

2019

47–65°F

dry

2018

61–72°F

dry

2017

44–57°F

dry

Best months to race in California →

About this race

Ring in the New Year 5k, 10k, 15k, Half Marathon takes place on January 3, 2027 in Simi Valley, CA. Visit the race website for full event details.

Course map

Train with a club

Run clubs near Simi Valley to train with before race day.

Anytime Runners

Simi Valley, CA

On Track Run Club

Simi Valley, CA

New Basin Blues Running Club

Woodland Hills, CA

Run Free Running Club LLC

Camarillo, CA

See all run clubs near Simi Valley →

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Ring in the New Year 5k, 10k, 15k, Half Marathon

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