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Marathon Pace Bands

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Best Boston Marathon Qualifiers

Best Boston Marathon Qualifiers

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Historical Race Day Weather for the California International Marathon

Check out the 2024 California International Marathon Weather Tracker.
Plug in your Goal Time to see what the weather will be when you reach parts of the course (temps, headwinds, tailwinds, etc.).

Weather Averages for Last 17 Years

Race Day Temperatures	High: 58°F (14°C) Low: 42°F (6°C)
Race Start Conditions	44°F (7°C) Humidity: 85% Clear N 5 mph
PR Score	94.2
Course Score	94.48

December 8, 2024

Race Day Temperatures	High: 64°F (18°C) Low: 49°F (9°C)
Race Start Conditions	52°F (11°C) Humidity: 68% Partially cloudy NNW 3 mph
PR Score (Normal Score)	0.00 (100.38)
Course Score	0.00

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December 3, 2023

Race Day Temperatures	High: 64°F (18°C) Low: 52°F (11°C)
Race Start Conditions	52°F (11°C) Humidity: 86% Clear SE 4 mph
PR Score (Normal Score)	99.42 (100.38)
Course Score	100.38

December 4, 2022

Race Day Temperatures	High: 58°F (14°C) Low: 42°F (6°C)
Race Start Conditions	47°F (8°C) Humidity: 90% Cloudy S 7 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 5, 2021

Race Day Temperatures	High: 60°F (16°C) Low: 38°F (3°C)
Race Start Conditions	40°F (4°C) Humidity: 100% Partly Cloudy W 5 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 8, 2019

Race Day Temperatures	High: 62°F (17°C) Low: 51°F (11°C)
Race Start Conditions	53°F (12°C) Humidity: 94% Possible Drizzle SSE 8 mph
PR Score (Normal Score)	99.21 (100.38)
Course Score	100.38

December 2, 2018

Race Day Temperatures	High: 53°F (12°C) Low: 39°F (4°C)
Race Start Conditions	39°F (4°C) Humidity: 90% Partly Cloudy N 4 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 3, 2017

Race Day Temperatures	High: 58°F (14°C) Low: 44°F (7°C)
Race Start Conditions	44°F (7°C) Humidity: 83% Clear SW 2 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 4, 2016

Race Day Temperatures	High: 59°F (15°C) Low: 38°F (3°C)
Race Start Conditions	38°F (3°C) Humidity: 96% Mostly Clear SE 2 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 6, 2015

Race Day Temperatures	High: 58°F (14°C) Low: 46°F (8°C)
Race Start Conditions	49°F (9°C) Humidity: 83% Mostly Cloudy S 8 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 7, 2014

Race Day Temperatures	High: 63°F (17°C) Low: 52°F (11°C)
Race Start Conditions	52°F (11°C) Humidity: 96% Mostly Cloudy NE 2 mph
PR Score (Normal Score)	99.71 (100.38)
Course Score	100.38

December 8, 2013

Race Day Temperatures	High: 45°F (7°C) Low: 30°F (-1°C)
Race Start Conditions	30°F (-1°C) Humidity: 96% Mostly Clear N 4 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 2, 2012

Race Day Temperatures	High: 62°F (17°C) Low: 55°F (13°C)
Race Start Conditions	59°F (15°C) Humidity: 87% Rain SSE 20 mph
PR Score (Normal Score)	99.28 (100.38)
Course Score	100.38

December 4, 2011

Race Day Temperatures	High: 58°F (14°C) Low: 31°F (-1°C)
Race Start Conditions	32°F (0°C) Humidity: 75% Clear No Wind
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

December 5, 2010

Race Day Temperatures	High: 58°F (14°C) Low: 46°F (8°C)
Race Start Conditions	48°F (9°C) Humidity: 93% Scattered Clouds No Wind
PR Score (Normal Score)	99.63 (100.38)
Course Score	100.38

2009

Race Day Temperatures	High: 51°F (11°C) Low: 27°F (-3°C)
Race Start Conditions	30°F (-1°C) Humidity: 70% Clear SE 8 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

2008

Race Day Temperatures	High: 45°F (7°C) Low: 41°F (5°C)
Race Start Conditions	42°F (6°C) Humidity: 89% Overcast No Wind
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38

2007

Race Day Temperatures	High: 60°F (16°C) Low: 41°F (5°C)
Race Start Conditions	43°F (6°C) Humidity: 56% Scattered Clouds SE 3 mph
PR Score (Normal Score)	100.38 (100.38)
Course Score	100.38