The best times to visit Littleton for ideal weather are
May 21st to September 16th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Littleton Travel Guide
Other Littleton Travel Info
Weather in Littleton
Temperature
Average temperatures in Littleton vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 25th 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 Littleton, 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 79.2°F (26.2°C) with temperatures rarely dropping below 55.7°F (13.2°C) at night.
Littleton Temperatures (Fahrenheit)
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Littleton Temperatures (Celsius)
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“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.
Littleton Perceived Temperature (F)
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Littleton Perceived Temperature (C)
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Average Littleton 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 | 26.4 | 15.8 | 5 |
| Feb | 27.9 | 16.8 | 6.2 |
| Mar | 39.2 | 27.6 | 16.9 |
| Apr | 53.9 | 42 | 31 |
| May | 67.4 | 54.7 | 41.9 |
| Jun | 72.9 | 61.7 | 50.8 |
| Jul | 78.3 | 66.8 | 55.5 |
| Aug | 75.9 | 64.2 | 53.1 |
| Sep | 70 | 57 | 45.7 |
| Oct | 56.7 | 46 | 36.7 |
| Nov | 44.5 | 34 | 25.6 |
| Dec | 32.6 | 24.4 | 16.4 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | -3.1 | -9 | -15 |
| Feb | -2.3 | -8.4 | -14.3 |
| Mar | 4 | -2.4 | -8.4 |
| Apr | 12.2 | 5.6 | -0.6 |
| May | 19.7 | 12.6 | 5.5 |
| Jun | 22.7 | 16.5 | 10.4 |
| Jul | 25.7 | 19.3 | 13.1 |
| Aug | 24.4 | 17.9 | 11.7 |
| Sep | 21.1 | 13.9 | 7.6 |
| Oct | 13.7 | 7.8 | 2.6 |
| Nov | 6.9 | 1.1 | -3.6 |
| Dec | 0.3 | -4.2 | -8.7 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Littleton are January, February, and then March. 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. For example, on the week of January 22nd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid July with an average of 3 days of significant precipitation the week of July 16th.
When can you find snow in Littleton? 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 Littleton.
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Snow on the Ground
The graph below shows the average snow on the ground in Littleton (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 13% | 0 | 1.4 |
| Feb | 16% | 0 | 1.6 |
| Mar | 17% | 0 | 2.1 |
| Apr | 28% | 0 | 3 |
| May | 28% | 0 | 4 |
| Jun | 37% | 0 | 4.9 |
| Jul | 36% | 0 | 5 |
| Aug | 28% | 0 | 4.6 |
| Sep | 23% | 0 | 3.2 |
| Oct | 28% | 0 | 4.1 |
| Nov | 19% | 0 | 2.4 |
| Dec | 27% | 0 | 3.1 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 13 | 0 | 3.6 |
| Feb | 16 | 0 | 4.1 |
| Mar | 17 | 0 | 5.3 |
| Apr | 28 | 0 | 7.6 |
| May | 28 | 0 | 10.2 |
| Jun | 37 | 0 | 12.4 |
| Jul | 36 | 0 | 12.7 |
| Aug | 28 | 0 | 11.7 |
| Sep | 23 | 0 | 8.1 |
| Oct | 28 | 0 | 10.4 |
| Nov | 19 | 0 | 6.1 |
| Dec | 27 | 0 | 7.9 |
Humidity and Wind
Littleton has some very humid months, with other comfortably humid months. The least humid month is April (51.6% relative humidity), and the most humid month is December (70.8%).
Wind in Littleton is usually extremely calm. The windiest month is April, followed by March and February. April’s average wind speed of around 4.6 knots (5.3 MPH or 8.6 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 April where average top sustained speeds reach 12.8 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Littleton.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | 3.3 | Barely noticeable | 10.2 | Gentle breeze |
| Feb | 3.7 | Barely noticeable | 11 | Significant breeze |
| Mar | 4.4 | Light breeze | 11.6 | Gentle breeze |
| Apr | 4.6 | Light breeze | 12.4 | Significant breeze |
| May | 3.6 | Barely noticeable | 11 | Gentle breeze |
| Jun | 2.9 | Barely noticeable | 9.6 | Gentle breeze |
| Jul | 2.5 | Barely noticeable | 9.1 | Gentle breeze |
| Aug | 2.1 | Barely noticeable | 8.5 | Gentle breeze |
| Sep | 2.1 | Barely noticeable | 8.2 | Gentle breeze |
| Oct | 3.1 | Barely noticeable | 9.8 | Gentle breeze |
| Nov | 3 | Barely noticeable | 9.4 | Gentle breeze |
| Dec | 3.2 | Barely noticeable | 9.9 | Gentle breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 63.6% |
| Feb | 59.1% |
| Mar | 54.1% |
| Apr | 51.6% |
| May | 55.8% |
| Jun | 65.7% |
| Jul | 67.6% |
| Aug | 70.1% |
| Sep | 70.4% |
| Oct | 67.7% |
| Nov | 65.3% |
| Dec | 70.8% |
Is it Safe to Travel to Littleton?
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 Littleton, 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 Littleton 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
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Overall Littleton Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 71°F (21.7°C) and 31°F (-0.6°C) with far warmer temperatures in the later months. Rain is somewhat common with 5 to 9 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 comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 9 to 11 days of precipitation per month. June – August is the busiest season for tourism in Littleton, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 74.4°F (23.6°C) and 38.9°F (3.8°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 to 9 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 Littleton to be enjoyable for warm weather travelers. The average high during this season is between 34.5°F (1.4°C) and 22.9°F (-5.1°C). On average, it rains or snows a fair amount: 4 to 8 times per month. These times of year are the second busiest with tourists.
Best Times to Travel› the United States › Littleton, NH, US