ClimateAverages

Marysville Climate

Washington, United States of America · population 66,773 · 570 weather stations within 200 km · records 1837 to 2025

Average annual daytime high
14.9°C
Warmest month · July
23.7°C
Typical daytime high
Coldest month · January
-0.3°C
Typical overnight low

Marysville has an average annual daytime high of 14.9°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 23.7°C, and its coldest is January, with overnight lows near -0.3°C.

Month by month averages

MonthAvg highAvg low
January6.0°C-0.3°CColdest
February9.0°C1.1°C
March10.9°C1.6°C
April14.6°C3.7°C
May18.4°C6.7°C
June20.6°C9.2°C
July23.7°C10.4°CWarmest
August23.5°C10.6°C
September20.7°C8.8°C
October15.2°C5.6°C
November9.8°C2.6°C
December7.0°C1.1°C

Temperature range across the year

-2°5°12°19°26°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2014
+2.2°C vs. 1951–1980
Coldest year on record
1837
-1.7°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Marysville getting hotter?

Since 1900, Marysville's average temperature has risen by +1.4°C. Compared to the earliest station records that begin in 1837, warming totals +1.7°C.

9.4°9.9°10.4°10.9°11.4°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
May to October

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Marysville?

Marysville's average annual daytime high is 14.9°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 23.7°C, and the coldest is January, with lows averaging -0.3°C.

What is the warmest month in Marysville?

July is the warmest month in Marysville, with typical daytime highs of 23.7°C.

What is the hottest year on record for Marysville?

2014 is the hottest year on record for Marysville, running +2.2°C above the 1951 to 1980 baseline.

Is Marysville getting hotter?

Yes. Since 1900, Marysville has warmed by roughly +1.4°C.

When is the best time to visit Marysville?

May to October typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.