The best times to visit Nashua for ideal weather are

April 30th to October 7th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Nashua Travel Info

Weather in Nashua

Temperature

Average temperatures in Nashua vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 32nd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Nashua, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 86.9°F (30.5°C) with temperatures rarely dropping below 63.9°F (17.7°C) at night.

Nashua Temperatures (Fahrenheit)

Key
High
Average
Low

Nashua Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Nashua Perceived Temperature (F)

Key
High
Average
Low

Nashua Perceived Temperature (C)

Key
High
Average
Low

 

Average Nashua Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 34.9 25.2 16.3
Feb 36.4 26.4 16.7
Mar 46.9 35.9 26.2
Apr 61 48.5 37.3
May 73 60.1 48
Jun 79.1 67.2 56.4
Jul 85.4 73.9 62.8
Aug 83.3 71.3 59.9
Sep 76.1 63.8 52.5
Oct 63.2 51.7 41.6
Nov 51.6 40.8 31.4
Dec 40.8 31.7 23.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 1.6 -3.8 -8.7
Feb 2.4 -3.1 -8.5
Mar 8.3 2.2 -3.2
Apr 16.1 9.2 2.9
May 22.8 15.6 8.9
Jun 26.2 19.6 13.6
Jul 29.7 23.3 17.1
Aug 28.5 21.8 15.5
Sep 24.5 17.7 11.4
Oct 17.3 10.9 5.3
Nov 10.9 4.9 -0.3
Dec 4.9 -0.2 -4.7

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Nashua are January, February, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late January and early February. For example, on the week of January 29th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 2 days of significant precipitation the week of June 11th.

When can you find snow in Nashua? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Nashua.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Nashua (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 11% 0 1.4
Feb 14% 0 1.9
Mar 16% 0 2.2
Apr 19% 0 2.9
May 19% 0 2.5
Jun 26% 0 3.3
Jul 20% 0 3.2
Aug 17% 0 3.5
Sep 15% 0 2.8
Oct 18% 0 3.1
Nov 15% 0 2.2
Dec 17% 0 2.9

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 11 0 3.6
Feb 14 0 4.8
Mar 16 0 5.6
Apr 19 0 7.4
May 19 0 6.4
Jun 26 0 8.4
Jul 20 0 8.1
Aug 17 0 8.9
Sep 15 0 7.1
Oct 18 0 7.9
Nov 15 0 5.6
Dec 17 0 7.4

 

Humidity and Wind

Nashua has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (46.2% relative humidity), and the most humid month is October (64.5%).

Wind in Nashua is usually calm. The windiest month is March, followed by April and February. March’s average wind speed of around 5.7 knots (6.5 MPH or 10.5 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid February where average top sustained speeds reach 14.3 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Nashua.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 4.7 Light breeze 12.4 Significant breeze
Feb 5.5 Light breeze 12.9 Significant breeze
Mar 5.7 Light breeze 12.6 Significant breeze
Apr 5.6 Light breeze 13.2 Significant breeze
May 4.6 Light breeze 11.2 Significant breeze
Jun 4 Light breeze 10.1 Gentle breeze
Jul 3.7 Barely noticeable 9.9 Significant breeze
Aug 3.3 Barely noticeable 9.3 Gentle breeze
Sep 3.4 Barely noticeable 9.2 Significant breeze
Oct 3.8 Barely noticeable 10.2 Gentle breeze
Nov 4.2 Light breeze 10.5 Significant breeze
Dec 4.5 Light breeze 11.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 53.8%
Feb 49.3%
Mar 46.9%
Apr 46.2%
May 52%
Jun 60.1%
Jul 60.3%
Aug 61.3%
Sep 63.9%
Oct 64.5%
Nov 58.2%
Dec 62.5%

 

Is it Safe to Travel to Nashua?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Nashua, NH, US is June, followed by August and September. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Nashua in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 56.3 in November means 56.3% of the tourists vs. June.

 

 

Overall Nashua Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 78.4°F (25.8°C) and 38.2°F (3.4°C) with far warmer temperatures in the later months. Rain is somewhat common with 5 to 6 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 5 to 8 days of precipitation per month. June – August is the busiest season for tourism in Nashua, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 81.6°F (27.6°C) and 45.8°F (7.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Nashua to be enjoyable for warm weather travelers. The average high during this season is between 42.8°F (6°C) and 31.4°F (-0.3°C). On average, it rains or snows a fair amount: 3 to 5 times per month. These times of year are the second busiest with tourists.

 

Best Times to Travel› the United States › Nashua, NH, US