Climate averages 1991–2020

Lynn weather
in March.

A cold, wet month: the 9th warmest and the 11th driest of the year.

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

Average high 5.9°C Daytime mean, March
Average low -1.3°C Night-time mean, March
Rainfall 115 mm 11 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Lynn · average highYear overview

March is a cold month in Lynn: daytime highs average 5.9°C and nights cool to about -1.3°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 115 mm of rain on roughly 11 days, which makes March a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average March day.

The nearest other city in this atlas is Boston (15 km away). In March its highs average 6.7°C, 0.8°C warmer than Lynn, with 116 mm of rain.

Among the 498 cities listed in the United States, Lynn ranks joint 471st of 498 for the warmest March highs and joint 446th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Lynn is 9.0°C cooler than that mean.

From March to April, average highs rise by 5.5°C to 11.4°C, and monthly rainfall falls from 115 mm to 103 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. -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

Lynn climate table

1991–2020
Monthly climate averages for Lynn, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 1.6°C-5.4°C-5.4°C9210.09.59 h
February 2.7°C-4.8°C-4.8°C849.110.511 h
March, selected 5.9°C-1.3°C-1.3°C11511.311.912 h
April 11.4°C4.2°C4.2°C10310.713.313 h
May 16.7°C9.6°C9.6°C8410.714.615 h
June 21.8°C15.0°C15.0°C8810.315.215 h
July 25.2°C18.6°C18.6°C749.915.015 h
August 24.6°C18.3°C18.3°C859.013.914 h
September 21.0°C14.8°C14.8°C878.212.513 h
October 15.2°C9.1°C9.1°C10910.111.111 h
November 9.6°C3.6°C3.6°C969.69.810 h
December 4.6°C-1.5°C-1.5°C11610.69.19 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

March in nearby cities

Distance from Lynn

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