Mount Monadnock

Mountain Isolated granite summit popular for day hikes and panoramas

A frequently climbed New Hampshire summit, Mount Monadnock offers exposed granite ledges, short steep trails and wide summit views; hikers come for day trips and seasonal foliage.

Main image

Mount Monadnock is a prominent monadnock in southwestern New Hampshire, United States, with a summit elevation of 965 meters (3,165 feet). It is known for its isolated, treeless summit and extensive hiking use.

The mountain features a variety of trails from gentle to steep that reach rocky summit ledges offering broad 360-degree views on clear days. Its accessibility from nearby towns such as Jaffrey and Dublin, and a long history of outdoor recreation, have made it a classic regional hiking destination.

Geologically it is an exposed summit of hard rock shaped by glacial erosion and long-term weathering; culturally it has been written about by New England naturalists and conservationists. Mount Monadnock sits in Cheshire County amid rural hills of southwestern New Hampshire.

  • Elevation and summit views: Summit elevation is 965 meters (3,165 feet); the peak is noted for its bare granite summit and long-distance views across southern New Hampshire and into neighboring states.
  • Trails and popularity: A dense network of well-marked trails and managed trailheads make it one of the most frequently climbed mountains in the northeastern United States.

How to Get to Mount Monadnock #

Monadnock State Park is accessed from Jaffrey, New Hampshire. From main routes, follow signs to Monadnock State Park; parking and trailheads are at the park entrance. The nearest larger towns are Keene and Peterborough; public transit options are limited.

Tips for Visiting Mount Monadnock #

  • Use the White Dot or White Cross trails for the clearest paths and easiest navigation; these are well-marked.
  • Go on weekdays or very early on weekend mornings to avoid heavy local-hiker traffic.
  • Expect exposed granite near the summit - bring sun protection and know that winter conditions make some approaches icy and hazardous.

Best Time to Visit Mount Monadnock #

Spring through autumn for hiking and views; winter for snow sports if prepared for icy conditions.

Late spring to early autumn
May-October · Day 10-25°C (varies widely), cooler at night
Trails are clear, and summit views are expansive; summer sees the most visitors.
Winter
December-March · Cold with snow and ice on the summit
Snowshoeing and winter climbing are popular but require proper gear.

Weather & Climate near Mount Monadnock #

Climate

Mount Monadnock's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -13°C to 24°C. Abundant rainfall (1399 mm/year), wettest in November, distributed fairly evenly throughout the year.

Temperature & Rainfall
Temperature Range
24°
Warmest Month
-13°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -3°C and lows of -13°C. Significant rainfall (105 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-13° -3°

Weather

105 mm
Rainfall
4.9 m/s
Wind
Light Breeze

February

February is freezing with highs of -2°C and lows of -13°C. Significant rainfall (107 mm).

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-13° -2°

Weather

107 mm
Rainfall
5.1 m/s
Wind
Light Breeze

March

March is freezing with highs of 3°C and lows of -7°C. Significant rainfall (112 mm).

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-7°

Weather

112 mm
Rainfall
5.1 m/s
Wind
Light Breeze

April

April is cold with highs of 9°C and lows of -2°C. Significant rainfall (118 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

118 mm
Rainfall
4.8 m/s
Wind
Light Breeze

May

May is cool with highs of 17°C and lows of 4°C. Significant rainfall (121 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
17°

Weather

121 mm
Rainfall
4.1 m/s
Wind
Light Breeze

June

June is cool with highs of 21°C and lows of 10°C. Significant rainfall (117 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 21°

Weather

117 mm
Rainfall
3.6 m/s
Wind
Light Breeze

July

July is the warmest month with highs of 24°C and lows of 12°C. Significant rainfall (111 mm).

Comfort

18°
Feels Like Mild
18°C
Temperature
12° 24°

Weather

111 mm
Rainfall
3.4 m/s
Wind
Light Breeze

August

August is cool with highs of 23°C and lows of 12°C. Significant rainfall (123 mm).

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 23°

Weather

123 mm
Rainfall
3.0 m/s
Wind
Light Breeze

September

September is cool with highs of 19°C and lows of 8°C. Significant rainfall (104 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
19°

Weather

104 mm
Rainfall
3.4 m/s
Wind
Light Breeze

October

October is cold with highs of 13°C and lows of 2°C. Significant rainfall (115 mm).

Comfort

Feels Like Cold
C
Temperature
13°

Weather

115 mm
Rainfall
4.0 m/s
Wind
Light Breeze

November

November is cold with highs of 6°C and lows of -3°C. The wettest month with heavy rain (139 mm).

Comfort

Feels Like Cold
C
Temperature
-3°

Weather

139 mm
Rainfall
4.5 m/s
Wind
Light Breeze

December

December is freezing with highs of 0°C and lows of -10°C. Significant rainfall (127 mm).

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-10°

Weather

127 mm
Rainfall
4.7 m/s
Wind
Light Breeze

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