Climate averages 1991–2020

Ōme weather
in March.

A cool, wet month: the 9th warmest and the 5th driest of the year.

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

Average high 11.9°C Daytime mean, March
Average low 1.8°C Night-time mean, March
Rainfall 139 mm 15 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Ōme · average highYear overview

March is a cool month in Ōme: daytime highs average 11.9°C and nights cool to about 1.8°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 139 mm of rain on roughly 15 days, which makes March a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.

The nearest other city in this atlas is Akiruno (6 km away). In March its highs average 12.1°C, about as warm as Ōme, with 139 mm of rain.

Among the 303 cities listed in Japan, Ōme ranks joint 198th of 303 for the warmest March highs and joint 237th of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Ōme is 0.4°C warmer than that mean.

From March to April, average highs rise by 5.4°C to 17.3°C, and monthly rainfall rises from 139 mm to 146 mm.

The annual picture

March 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. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall 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

Ōme climate table

1991–2020
Monthly climate averages for Ōme, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 7.4°C-2.0°C-2.0°C778.510.010 h
February 8.2°C-1.6°C-1.6°C769.710.911 h
March, selected 11.9°C1.8°C1.8°C13915.211.912 h
April 17.3°C7.3°C7.3°C14614.613.113 h
May 21.7°C12.7°C12.7°C16615.614.014 h
June 24.3°C17.2°C17.2°C22219.514.515 h
July 28.0°C21.4°C21.4°C24321.814.314 h
August 29.0°C22.5°C22.5°C20521.013.514 h
September 25.3°C19.0°C19.0°C24918.212.412 h
October 20.0°C13.1°C13.1°C24216.211.311 h
November 15.1°C6.9°C6.9°C10111.310.310 h
December 10.1°C1.4°C1.4°C688.39.810 h

Rainfall is the average of the 30 separate monthly totals. A rain 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

March in nearby cities

Distance from Ōme

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 Ōme) is explained once on the Ōme year overview and on the Sources, method and limits page.

Hachiōji, Iruma and Akiruno lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.