Merrimack climate

Merrimack Weather in June

NOAA 1991-2020 normals for Nashua 2 Nnw, 8.3 km from Merrimack

Average highs run from 74°F on June 1 to 82°F on June 30, and lows from 51°F to 60°F. Normal precipitation for the month is 4.32 in over about 11 wet days.

June day by day

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

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

June at a glance

Average high
78°F
Average low
56°F
Precipitation
4.32 in
Record high
102°FJun 24, 2025
Record low
38°FJun 1, 1953
Chance of a freeze
0%
Days of 90°F or more
2.7
Daylight
15 h 08 min to 15 h 18 min
Cloud cover
66%
Humidity
79%
Dew point
57°F
Wind
4.0 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°F94°F 201338°F 195338%0%
Jun 274°F52°F95°F 202341°F 194938%0%
Jun 375°F52°F86°F 202443°F 200338%0%
Jun 475°F52°F89°F 200541°F 195338%0%
Jun 575°F53°F94°F 202545°F 201138%0%
Jun 676°F53°F94°F 202144°F 194838%0%
Jun 776°F53°F97°F 199943°F 200737%0%
Jun 876°F54°F96°F 200839°F 195137%0%
Jun 977°F54°F95°F 200841°F 194937%0%
Jun 1077°F54°F100°F 200844°F 195537%0%
Jun 1177°F55°F94°F 201746°F 195137%0%
Jun 1277°F55°F97°F 201743°F 195337%0%
Jun 1378°F55°F95°F 201744°F 195336%0%
Jun 1478°F56°F90°F 200144°F 195336%0%
Jun 1578°F56°F93°F 200143°F 195336%0%
Jun 1679°F56°F90°F 200146°F 202436%0%
Jun 1779°F56°F90°F 195243°F 195435%0%
Jun 1879°F57°F97°F 202441°F 195435%0%
Jun 1980°F57°F98°F 202449°F 199935%0%
Jun 2080°F57°F99°F 202448°F 202235%0%
Jun 2180°F58°F95°F 194949°F 201434%0%
Jun 2280°F58°F95°F 195450°F 201434%0%
Jun 2381°F58°F96°F 202543°F 195234%0%
Jun 2481°F58°F102°F 202548°F 200734%0%
Jun 2581°F59°F95°F 200548°F 195334%0%
Jun 2682°F59°F99°F 195252°F 201834%0%
Jun 2782°F59°F96°F 200750°F 200434%0%
Jun 2882°F59°F97°F 202151°F 194934%0%
Jun 2982°F60°F98°F 202149°F 194933%0%
Jun 3082°F60°F96°F 202148°F 201533%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Merrimack, 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).

June 1
sunrise 5:10 AM, sunset 8:18 PM
June 30
sunrise 5:11 AM, sunset 8:29 PM

Every day of June: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00275712 (Nashua 2 Nnw), public domain. Records: NOAA GHCN-Daily, station USW00014710, 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.