Climate averages 1991–2020

New Westminster weather
in April.

A cool, wet month: the 7th warmest and the 6th driest of the year.

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

Average high 12.6°C Daytime mean, April
Average low 3.5°C Night-time mean, April
Rainfall 175 mm 17 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in New Westminster · average highYear overview

April is a cool month in New Westminster: daytime highs average 12.6°C and nights cool to about 3.5°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 175 mm of rain on roughly 17 days, which makes April a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 41 min on an average April day.

The nearest other city in this atlas is Burnaby (7 km away). In April its highs average 12.3°C, about as warm as New Westminster, with 175 mm of rain.

Among the 86 cities listed in Canada, New Westminster ranks 8th of 86 for the warmest April highs and joint 81st of 86 for the driest April (rainfall, lowest first). The mean April high of those 86 cities is 10.3°C; New Westminster is 2.2°C warmer than that mean.

From April to May, average highs rise by 4.0°C to 16.6°C, and monthly rainfall falls from 175 mm to 117 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. -50510152025 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 3500

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

Every month, side by side

New Westminster climate table

1991–2020
Monthly climate averages for New Westminster, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 5.0°C-0.5°C-0.5°C31619.08.79 h
February 6.8°C-0.4°C-0.4°C19115.610.110 h
March 9.2°C1.2°C1.2°C25219.211.912 h
April, selected 12.6°C3.5°C3.5°C17516.913.714 h
May 16.6°C7.1°C7.1°C11712.515.315 h
June 18.9°C10.3°C10.3°C9411.516.216 h
July 22.4°C13.1°C13.1°C536.615.816 h
August 22.6°C13.4°C13.4°C737.414.414 h
September 19.3°C10.7°C10.7°C12510.212.713 h
October 13.2°C6.5°C6.5°C24616.310.811 h
November 7.9°C2.4°C2.4°C34919.99.29 h
December 4.6°C-0.4°C-0.4°C30719.48.38 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

April in nearby cities

Distance from New Westminster

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

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