Groton
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Groton Weather in July

July in Groton averages 27°C (81°F) during the day and 19°C (66°F) at night. Quite a bit of rainfall is typical this month, with around 98 mm (3.9 in) on average. An umbrella is a good idea.

Rainfall in Groton in July

Records from the past 30 years suggest around 11 days of rain, with 98 mm (3.9 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Groton in July

Groton in July has excellent weather. Days reach 27°C (81°F) and nights cool to 19°C (66°F). July is part of the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 19°C (66°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.

Sunshine in Groton in July

Expect sunny days throughout the month, with an estimated 293 hours of sunshine. This makes it a pleasant time to visit Groton.

If you're inclined towards comfortable temperatures and drier conditions, July is a good time to visit Groton.

Groton Temperature in July

Min Temperature
19°C (66°F)
Max Temperature
27°C (81°F)
Chance of Rain
37%
Precipitation
98 mm (3.9 in)
Rainy days
11 days
Humidity
68% *
Sunshine
293 hours *
Percentage Sunshine
64% *
* Data from: Hartford, the United States of America (68 KM, 42 Miles).

Groton Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Groton - and find the best time to visit.

Best Places in the United States of America in July

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Groton in July

Warm but pleasant conditions in Groton in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Groton in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    8/10
  • Outdoor sports
    7/10

Groton 3-Day Forecast

Popular in July

Where to go in July - average daytime high across popular destinations.

Bucket list

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