Groton climate

Groton Weather in June

NOAA 1991-2020 normals for Andover #2, 15.5 km from Groton

Average highs run from 74°F on June 1 to 80°F on June 30, and lows from 52°F to 59°F. Normal precipitation for the month is 3.92 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
77°F
Average low
56°F
Precipitation
3.92 in
Record high
100°FJun 2, 2017
Record low
37°FJun 12, 2012
Chance of a freeze
0%
Days of 90°F or more
1.6
Daylight
15 h 27 min to 15 h 38 min
Cloud cover
60%
Humidity
64%
Dew point
54°F
Wind
10.7 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°F52°F95°F 201841°F 20120%
Jun 274°F53°F100°F 201740°F 20160%
Jun 374°F53°F92°F 202145°F 20140%
Jun 475°F53°F99°F 202140°F 20250%
Jun 575°F54°F100°F 201844°F 20240%
Jun 675°F54°F94°F 201748°F 20140%
Jun 775°F54°F96°F 202142°F 20240%
Jun 876°F55°F94°F 202144°F 20140%
Jun 976°F55°F99°F 201546°F 20140%
Jun 1076°F55°F98°F 202142°F 20250%
Jun 1176°F55°F96°F 201648°F 20120%
Jun 1277°F56°F94°F 201637°F 20120%
Jun 1377°F56°F92°F 202242°F 20140%
Jun 1477°F56°F90°F 201846°F 20260%
Jun 1577°F56°F90°F 202145°F 20260%
Jun 1678°F57°F98°F 202143°F 20260%
Jun 1778°F57°F94°F 201252°F 20230%
Jun 1878°F57°F97°F 202248°F 20190%
Jun 1978°F57°F99°F 202349°F 20240%
Jun 2079°F57°F94°F 202348°F 20260%
Jun 2179°F58°F92°F 202545°F 20210%
Jun 2279°F58°F97°F 202547°F 20210%
Jun 2379°F58°F98°F 202149°F 20190%
Jun 2479°F58°F94°F 201640°F 20170%
Jun 2580°F58°F89°F 202445°F 20170%
Jun 2680°F59°F89°F 201643°F 20170%
Jun 2780°F59°F91°F 201545°F 20170%
Jun 2880°F59°F94°F 201846°F 20230%
Jun 2980°F59°F96°F 202252°F 20170%
Jun 3080°F59°F90°F 201247°F 20240%

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 (CDT).

June 1
sunrise 5:47 AM, sunset 9:14 PM
June 30
sunrise 5:47 AM, sunset 9:25 PM

Every day of June: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00390120 (Andover #2), public domain. Records: NOAA GHCN-Daily, station USC00390022, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.