The best times to visit Norwich for ideal weather are

May 7th 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 Norwich Travel Info

Weather in Norwich


Average temperatures in Norwich vary drastically. 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 Norwich, 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 85.9°F (29.9°C) with temperatures rarely dropping below 64.5°F (18.1°C) at night.

Norwich Temperatures (Fahrenheit)


Norwich Temperatures (Celsius)


“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.

Norwich Perceived Temperature (F)


Norwich Perceived Temperature (C)



Average Norwich 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 37.2 27.3 18.1
Feb 38.1 27.8 18.3
Mar 48.7 37.6 27.6
Apr 61.7 49.4 37.8
May 73.1 60.1 48.4
Jun 78.6 67.2 56.9
Jul 84.3 73.5 63.5
Aug 82.2 70.8 60.2
Sep 76.6 64.4 53.5
Oct 65.1 53.3 43
Nov 53.7 42.5 32.8
Dec 44.2 34.8 26.1

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 2.9 -2.6 -7.7
Feb 3.4 -2.3 -7.6
Mar 9.3 3.1 -2.4
Apr 16.5 9.7 3.2
May 22.8 15.6 9.1
Jun 25.9 19.6 13.8
Jul 29.1 23.1 17.5
Aug 27.9 21.6 15.7
Sep 24.8 18 11.9
Oct 18.4 11.8 6.1
Nov 12.1 5.8 0.4
Dec 6.8 1.6 -3.3



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Norwich are August, January, 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 mid to late September. For example, on the week of September 17th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late July with an average of 2 days of significant precipitation the week of July 23rd.

When can you find snow in Norwich? 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 Norwich.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 19% 0 2.5
Feb 23% 0 3
Mar 21% 0 4
Apr 23% 0 4.1
May 22% 0 2.9
Jun 25% 0 5.1
Jul 23% 0 3.7
Aug 19% 0 3.8
Sep 20% 0 4.1
Oct 22% 0 3.4
Nov 22% 0 3.3
Dec 24% 0 4.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 19 0 6.4
Feb 23 0 7.6
Mar 21 0 10.2
Apr 23 0 10.4
May 22 0 7.4
Jun 25 0 13
Jul 23 0 9.4
Aug 19 0 9.7
Sep 20 0 10.4
Oct 22 0 8.6
Nov 22 0 8.4
Dec 24 0 11.2


Humidity and Wind

Norwich has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (46.6% relative humidity), and the most humid month is September (65.5%).

Wind in Norwich is usually calm. The windiest month is March, followed by April and February. March’s average wind speed of around 5.8 knots (6.6 MPH or 10.7 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 March where average top sustained speeds reach 13.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

Avg. Relative Humidity


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

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 11.4 Significant breeze
Feb 5.2 Light breeze 12.4 Significant breeze
Mar 5.8 Light breeze 13 Significant breeze
Apr 5.7 Light breeze 13 Significant breeze
May 4.8 Light breeze 11.8 Significant breeze
Jun 4 Light breeze 10.7 Gentle breeze
Jul 3.8 Barely noticeable 10.3 Significant breeze
Aug 3.3 Barely noticeable 9.6 Gentle breeze
Sep 3.6 Barely noticeable 9.9 Significant breeze
Oct 4.2 Light breeze 10.9 Gentle breeze
Nov 4.4 Light breeze 10.9 Significant breeze
Dec 4.8 Light breeze 11.1 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 53.2%
Feb 50.1%
Mar 47.3%
Apr 46.6%
May 55.4%
Jun 63.7%
Jul 63.9%
Aug 64.7%
Sep 65.5%
Oct 63.6%
Nov 57.5%
Dec 60.4%


Is it Safe to Travel to Norwich?

Our best data indicates this area is generally safe. As of Oct 07, 2019 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 Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Norwich, CT, US is July, followed by June and August. 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 Norwich in January. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 51.4 in January means 51.4% of the tourists vs. July.



Overall Norwich Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 77.9°F (25.5°C) and 39.4°F (4.1°C) with far warmer temperatures in the later months. Rain is somewhat common with roughly 7 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in Norwich, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 81.3°F (27.4°C) and 48.7°F (9.3°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 to 7 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 Norwich to be enjoyable for warm weather travelers. The average high during this season is between 45.5°F (7.5°C) and 33.4°F (0.8°C). On average, it rains or snows a fair amount: 6 to 8 times per month. These times of year are fairly slow with tourists.


Best Times to Travelthe United States › Norwich, CT, US