Groton climate

Groton Weather in June

NOAA 1991-2020 normals for Nashua Cwsu, 15.7 km from Groton

Average highs run from 74°F on June 1 to 83°F on June 30, and lows from 51°F to 60°F. Normal precipitation for the month is 4.19 in.

June day by day

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

Normal daily high and low temperature at Groton, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

June at a glance

Average high
79°F
Average low
56°F
Precipitation
4.19 in
Record high
100°FJun 24, 2025
Record low
36°FJun 1, 2009
Chance of a freeze
0%
Days of 90°F or more
3.0
Daylight
15 h 07 min to 15 h 16 min
Cloud cover
63%
Humidity
79%
Dew point
58°F
Wind
4.5 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
Jun 174°F51°F93°F 201336°F 20090%
Jun 274°F52°F94°F 202339°F 20200%
Jun 374°F52°F86°F 201442°F 20030%
Jun 475°F52°F88°F 202039°F 20020%
Jun 575°F53°F94°F 202543°F 20110%
Jun 675°F53°F93°F 202145°F 20000%
Jun 776°F53°F97°F 199942°F 20070%
Jun 876°F54°F95°F 202141°F 20020%
Jun 976°F54°F96°F 200847°F 20100%
Jun 1077°F54°F99°F 200845°F 19990%
Jun 1177°F55°F94°F 201744°F 20040%
Jun 1278°F55°F97°F 201745°F 20040%
Jun 1378°F55°F95°F 201748°F 20000%
Jun 1478°F56°F89°F 200148°F 20190%
Jun 1579°F56°F91°F 200147°F 20070%
Jun 1679°F56°F89°F 201144°F 19990%
Jun 1779°F57°F90°F 200046°F 20090%
Jun 1880°F57°F95°F 202450°F 19990%
Jun 1980°F57°F97°F 202448°F 19990%
Jun 2080°F57°F98°F 201246°F 20040%
Jun 2181°F58°F96°F 201246°F 20220%
Jun 2281°F58°F94°F 201249°F 20230%
Jun 2381°F58°F97°F 202547°F 20050%
Jun 2482°F59°F100°F 202548°F 20210%
Jun 2582°F59°F94°F 200349°F 20020%
Jun 2682°F59°F95°F 200546°F 20180%
Jun 2783°F59°F94°F 199950°F 20040%
Jun 2883°F60°F94°F 202147°F 20240%
Jun 2983°F60°F96°F 202153°F 20150%
Jun 3083°F60°F96°F 202154°F 20100%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Groton, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

June 1
sunrise 5:11 AM, sunset 8:18 PM
June 30
sunrise 5:12 AM, sunset 8:28 PM

Every day of June: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00275703 (Nashua Cwsu), public domain. Records: NOAA GHCN-Daily, station USW00004780, 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.