Bizz Johnson Trail 50K

Susanville, CA, USA · October 10, 2027·
partly-cloudy-day49°·64° high·Breezy·Dry
9
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Bizz Johnson Trail 50K race day weather

partly-cloudy-day
49°at start
67° high
Breezy
Dry
Your goal
0:00:00

Cool start — fast day potential, big temp swing

A cool 49°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 67°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 318 days
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About the Bizz Johnson Trail 50K

The Bizz Johnson Trail 50K starts at Mason Station near Westwood with a long out and back on McCoy Road before joining the Bizz Johnson Trail in Lassen National Forest. The trail follows the old Fernley and Lassen Branch Line railroad grade, climbing gently to Westwood Junction and then running downhill all the way to Susanville. In the Susan River Canyon runners pass orange cliffs, cross the river ten times on wooden railroad bridges and go through two former railroad tunnels near the end. It is a point-to-point course that finishes at Hobo Camp.

Race weekend

Bizz Johnson Trail 50K FAQ

When is the 2027 Bizz Johnson Trail 50K?

The 2027 Bizz Johnson Trail 50K will be held on Sunday October 10, 2027.

What is the time limit for the Bizz Johnson Trail 50K?

The time limit for the Bizz Johnson Trail 50K is 8 hours.

What will the weather be like for the 2027 Bizz Johnson Trail 50K?

The forecast calls for a high of 72°F and a low of 45°F with a 2% chance of rain. Check our detailed hourly forecast above for the best 50K race plan.

What is the weather usually like for the Bizz Johnson Trail 50K?

Over the 6 years racecast.io has race-day weather for (2021 to 2026), it averaged 48°F at the start and 69°F by a typical finish. Rain fell during race hours in 2 of those years (2024 and 2025).

What was the hottest Bizz Johnson Trail 50K?

Of the 6 years on record, 2022 was the warmest, reaching 92°F during race hours. The coldest start was 2026, at 33°F.

What was the windiest Bizz Johnson Trail 50K?

Of the 6 years on record, 2026 was the windiest, with wind averaging 8 mph during race hours. The calmest was 2023, at 0 mph.

Bizz Johnson Trail 50K weather history

Based on 6 years of data
Avg Temp
60°F
L:48° H:69°
RunScore
8
Conditions
Rain Freq
33%
2 of 6 yrs
Wind5mph
Dew33°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
33°/57°-
9
2025
partly-cloudy-day
38°/49°Light
10
2024
partly-cloudy-day
47°/62°Light
9
2023
clear-day
47°/72°-
7
2022
clear-day
68°/92°-
4
2021
clear-day
54°/84°-
7