Climate averages 1991–2020

Yonezawa weather
in April.

A cool, wet month: the 7th warmest and the driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 13.1°C Daytime mean, April
Average low 3.2°C Night-time mean, April
Rainfall 115 mm 15 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Yonezawa · average highYear overview

April is a cool month in Yonezawa: daytime highs average 13.1°C and nights cool to about 3.2°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 115 mm of rain on roughly 15 days, which makes April a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 09 min on an average April day.

The nearest other city in this atlas is Fukushima (36 km away). In April its highs average 15.5°C, 2.4°C warmer than Yonezawa, with 99 mm of rain.

Among the 303 cities listed in Japan, Yonezawa ranks joint 278th of 303 for the warmest April highs and joint 101st of 303 for the driest April (rainfall, lowest first). The mean April high of those 303 cities is 16.7°C; Yonezawa is 3.6°C cooler than that mean.

From April to May, average highs rise by 7.0°C to 20.0°C, and monthly rainfall rises from 115 mm to 116 mm.

The annual picture

April in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Yonezawa climate table

1991–2020
Monthly climate averages for Yonezawa, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 1.7°C-4.6°C-4.6°C19024.59.910 h
February 2.7°C-4.4°C-4.4°C13820.710.811 h
March 6.2°C-1.8°C-1.8°C14619.411.912 h
April, selected 13.1°C3.2°C3.2°C11515.113.213 h
May 20.0°C9.8°C9.8°C11614.214.214 h
June 23.4°C15.0°C15.0°C15515.214.715 h
July 26.6°C19.4°C19.4°C24119.914.515 h
August 27.7°C20.6°C20.6°C18317.413.614 h
September 23.6°C16.7°C16.7°C15515.312.512 h
October 17.6°C10.1°C10.1°C13914.311.211 h
November 11.3°C3.7°C3.7°C13317.510.210 h
December 4.7°C-1.6°C-1.6°C18123.29.610 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

April in nearby cities

Distance from Yonezawa

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Yonezawa) is explained once on the Yonezawa year overview and on the Sources, method and limits page.