Climate averages 1991–2020

Plymouth, United States weather
in May.

A mild, wet month: the 5th warmest and the 11th driest of the year.

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

Average high 19.2°C Daytime mean, May
Average low 9.6°C Night-time mean, May
Rainfall 108 mm 12 days with ≥1 mm
Daylight 15 h Sunrise to sunset, per day
Every month in Plymouth · average highYear overview

May is a mild month in Plymouth, United States: daytime highs average 19.2°C and nights cool to about 9.6°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 108 mm of rain on roughly 12 days, which makes May a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 49 min on an average May day.

The nearest other city in this atlas is Brooklyn Park (12 km away). In May its highs average 19.4°C, about as warm as Plymouth, United States, with 110 mm of rain.

Among the 498 cities listed in the United States, Plymouth, United States ranks joint 436th of 498 for the warmest May highs and joint 395th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Plymouth, United States is 4.6°C cooler than that mean.

From May to June, average highs rise by 5.4°C to 24.6°C, and monthly rainfall rises from 108 mm to 111 mm.

The annual picture

May 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. -20-15-10-5051015202530 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 1500

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

Every month, side by side

Plymouth, United States climate table

1991–2020
Monthly climate averages for Plymouth, United States, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -5.5°C-13.6°C-13.6°C245.89.29 h
February -2.6°C-11.3°C-11.3°C264.910.410 h
March 4.6°C-4.8°C-4.8°C517.811.912 h
April 12.3°C2.3°C2.3°C8110.413.513 h
May, selected 19.2°C9.6°C9.6°C10812.014.815 h
June 24.6°C15.7°C15.7°C11112.315.516 h
July 27.1°C18.5°C18.5°C9010.315.215 h
August 25.9°C17.5°C17.5°C999.814.114 h
September 21.5°C13.3°C13.3°C829.612.613 h
October 13.4°C5.9°C5.9°C668.711.011 h
November 4.6°C-2.0°C-2.0°C486.99.610 h
December -2.5°C-9.6°C-9.6°C346.18.89 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

May in nearby cities

Distance from Plymouth

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 Plymouth) is explained once on the Plymouth, United States year overview and on the Sources, method and limits page.