The best times to visit New Haven for ideal weather are

April 30th to July 15th

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

 

 


Other New Haven Travel Info

Weather in New Haven

Temperature

Average temperatures in New Haven 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 22nd 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 New Haven, 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 86.8°F (30.4°C) with temperatures rarely dropping below 63°F (17.2°C) at night.

New Haven Temperatures (Fahrenheit)

Key
High
Average
Low

New Haven 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.

New Haven Perceived Temperature (F)

Key
High
Average
Low

New Haven Perceived Temperature (C)

Key
High
Average
Low

 

Average New Haven 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 33.5 24.3 15.4
Feb 34.3 24.6 15.5
Mar 51.4 38.9 28.3
Apr 64.9 50.5 37.8
May 77 63.1 49.7
Jun 84.3 71.4 59.7
Jul 85.9 73.7 61.4
Aug 84.2 71.5 59.4
Sep 78.8 64.7 52.5
Oct 67.2 53.2 41.6
Nov 52.5 41 30.8
Dec 40.4 31.6 23.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.8 -4.3 -9.2
Feb 1.3 -4.1 -9.2
Mar 10.8 3.8 -2.1
Apr 18.3 10.3 3.2
May 25 17.3 9.8
Jun 29.1 21.9 15.4
Jul 29.9 23.2 16.3
Aug 29 21.9 15.2
Sep 26 18.2 11.4
Oct 19.6 11.8 5.3
Nov 11.4 5 -0.7
Dec 4.7 -0.2 -4.6

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in New Haven are January, November, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late August to early September. For example, on the week of August 27th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late April with an average of 3 days of significant precipitation the week of April 23rd.

When can you find snow in New Haven? Weather stations report a good amount of seasonal snow likely to be deepest around February, especially close to early February. The best time to ski (if at all) in New Haven is often around around December 17th when fresh powder is deepest. 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 New Haven.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in New Haven (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 18% 2.6 2.5
Feb 19% 3.2 2.6
Mar 21% 2.4 3.2
Apr 28% 1.2 4.1
May 25% 0 4.4
Jun 30% 0 5.4
Jul 20% 0 3.6
Aug 19% 0 4.7
Sep 21% 0 3
Oct 19% 0 2.6
Nov 19% 1.7 3
Dec 24% 2.1 3.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 18 6.6 6.4
Feb 19 8.1 6.6
Mar 21 6.1 8.1
Apr 28 3 10.4
May 25 0 11.2
Jun 30 0 13.7
Jul 20 0 9.1
Aug 19 0 11.9
Sep 21 0 7.6
Oct 19 0 6.6
Nov 19 4.3 7.6
Dec 24 5.3 8.1

 

Humidity and Wind

New Haven has some very humid months, with other comfortably humid months. The least humid month is April (54% relative humidity), and the most humid month is December (72.6%).

Wind in New Haven is usually moderate. The windiest month is April, followed by January and February. April’s average wind speed of around 9.6 knots (11 MPH or 17.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid April where average top sustained speeds reach 18.2 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 9.6 Gentle breeze 16.4 Significant breeze
Feb 9 Gentle breeze 16 Significant breeze
Mar 8.7 Gentle breeze 15.4 Significant breeze
Apr 9.6 Gentle breeze 17.5 Strong breeze
May 7.7 Gentle breeze 15.1 Significant breeze
Jun 6.9 Light breeze 15 Significant breeze
Jul 5.6 Light breeze 12.4 Significant breeze
Aug 4.8 Light breeze 11.3 Significant breeze
Sep 5.6 Light breeze 11.8 Significant breeze
Oct 7.4 Gentle breeze 13.9 Significant breeze
Nov 8.4 Gentle breeze 15 Significant breeze
Dec 8.8 Gentle breeze 15.4 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 68.8%
Feb 67.5%
Mar 60%
Apr 54%
May 55.4%
Jun 59.9%
Jul 60.3%
Aug 65.2%
Sep 63.4%
Oct 59.4%
Nov 62.9%
Dec 72.6%

 

Is it Safe to Travel to New Haven?

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 New Haven, IN, US is July, followed by June and May. 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 New Haven 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 extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 44.5 in November means 44.5% of the tourists vs. July.

 

 

Overall New Haven Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 82.1°F (27.8°C) and 37.9°F (3.3°C) with far warmer temperatures in the later months. Rain is somewhat common with 7 to 8 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 quite warm. These months see moderate precipitation with 6 to 9 days of precipitation per month. June – August is the busiest season for tourism in New Haven, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 82.6°F (28.1°C) and 45.8°F (7.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: approximately 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 New Haven to be enjoyable for warm weather travelers. The average high during this season is between 40.9°F (4.9°C) and 31.5°F (-0.3°C). On average, it rains or snows a fair amount: 5 to 8 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel› the United States › New Haven, IN, US