Old Saybrook climate

Old Saybrook Weather in March

NOAA 1991-2020 normals for Groton, 29 km from Old Saybrook

Average highs run from 44°F on March 1 to 51°F on March 31, and lows from 28°F to 36°F. Normal precipitation for the month is 4.92 in over about 12 wet days.

March day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Old Saybrook, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
47°F
Average low
32°F
Precipitation
4.92 in
Snowfall
3.9 in
Record high
79°FMar 22, 2012
Record low
-1°FMar 7, 2003
Chance of a freeze
100%
Daylight
11 h 16 min to 12 h 40 min
Cloud cover
62%
Humidity
82%
Dew point
30°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Mar 144°F28°F61°F 20181°F 201536%8%
Mar 244°F28°F64°F 200414°F 202636%8%
Mar 344°F28°F66°F 20246°F 201536%8%
Mar 444°F28°F62°F 20241°F 200936%8%
Mar 545°F29°F58°F 20257°F 200936%7%
Mar 645°F29°F60°F 20227°F 200736%7%
Mar 745°F29°F65°F 2000-1°F 200336%7%
Mar 845°F29°F66°F 20126°F 200736%7%
Mar 946°F30°F74°F 20167°F 200736%7%
Mar 1046°F30°F75°F 20166°F 200536%6%
Mar 1146°F30°F70°F 20268°F 200337%6%
Mar 1246°F30°F72°F 201210°F 201737%6%
Mar 1346°F31°F68°F 202010°F 201737%6%
Mar 1447°F31°F70°F 202415°F 201437%6%
Mar 1547°F31°F68°F 202417°F 201737%6%
Mar 1647°F32°F66°F 202520°F 201737%6%
Mar 1747°F32°F70°F 200314°F 201737%5%
Mar 1848°F32°F75°F 201115°F 201438%5%
Mar 1948°F32°F76°F 201214°F 201538%5%
Mar 2048°F33°F75°F 201218°F 200438%5%
Mar 2149°F33°F74°F 201218°F 200638%5%
Mar 2249°F33°F79°F 201217°F 200238%4%
Mar 2349°F33°F73°F 201212°F 200438%4%
Mar 2449°F34°F70°F 200017°F 201438%4%
Mar 2550°F34°F69°F 202113°F 201438%4%
Mar 2650°F34°F78°F 202120°F 201138%4%
Mar 2750°F35°F70°F 200718°F 200138%3%
Mar 2851°F35°F63°F 200921°F 200138%3%
Mar 2951°F35°F69°F 200320°F 202639%3%
Mar 3051°F36°F69°F 200618°F 200839%3%
Mar 3151°F36°F78°F 202621°F 202339%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Old Saybrook, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

March 1
sunrise 6:24 AM, sunset 5:40 PM
March 31
sunrise 6:34 AM, sunset 7:14 PM

Every day of March: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00063207 (Groton), public domain. Records: NOAA GHCN-Daily, station USW00054788, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.