New Haven weather in July: New Haven, Connecticut: normal highs, lows, rain and records for July
New Haven in July has a normal high of 82°F and a normal low of 66°F, a daily mean of 74°F, rising from 81°F on the 1st to 82°F by the 31st. Measurable precipitation falls on 10 days in a normal July, 3.36 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 19°C, 85 mm of precipitation in July.
- NOAA stationNew Haven Tweed Airport
- Station IDUSW00014758
- Location41.26°N 72.89°W
- Elevation3 ft (1 m)
- From the center4 miles
- Population137,562
- Jan 38° 23°
- Feb 40° 24°
- Mar 47° 30°
- Apr 58° 39°
- May 68° 49°
- Jun 76° 59°
- Jul 82° 66°
- Aug 81° 65°
- Sep 75° 57°
- Oct 64° 46°
- Nov 53° 36°
- Dec 44° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is New Haven in July?
The normal high is 82°F and the normal low 66°F, for a daily mean of 73.9°F. July is 6.0°F warmer than June and 1.0°F warmer than August. July is the warmest month of the year in New Haven and the 9th wettest. Across the month the normal high rises 1°F, from 81°F on July 1 to 82°F on July 31. From one year to the next July's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Julys in three average between 71°F and 77°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 81°F | 64°F | 35% | 19% |
| July 8 | 82°F | 65°F | 34% | 19% |
| July 15 | 82°F | 66°F | 35% | 19% |
| July 22 | 83°F | 66°F | 35% | 19% |
| July 31 | 82°F | 66°F | 35% | 20% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 19, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 81°F | 64°F | 35% | 19% | 15 h 10 min |
| July 2 | 81°F | 64°F | 35% | 19% | 15 h 10 min |
| July 3 | 81°F | 64°F | 34% | 19% | 15 h 10 min |
| July 4 | 81°F | 64°F | 34% | 19% | 15 h 10 min |
| July 5 | 81°F | 65°F | 34% | 19% | 15 h |
| July 6 | 82°F | 65°F | 34% | 19% | 15 h |
| July 7 | 82°F | 65°F | 34% | 19% | 15 h |
| July 8 | 82°F | 65°F | 34% | 19% | 15 h |
| July 9 | 82°F | 65°F | 34% | 18% | 15 h |
| July 10 | 82°F | 65°F | 34% | 18% | 15 h |
| July 11 | 82°F | 66°F | 35% | 18% | 15 h |
| July 12 | 82°F | 66°F | 35% | 18% | 15 h |
| July 13 | 82°F | 66°F | 35% | 19% | 15 h |
| July 14 | 82°F | 66°F | 35% | 19% | 14 h 50 min |
| July 15 | 82°F | 66°F | 35% | 19% | 14 h 50 min |
| July 16 | 83°F | 66°F | 35% | 19% | 14 h 50 min |
| July 17 | 83°F | 66°F | 35% | 19% | 14 h 50 min |
| July 18 | 83°F | 66°F | 35% | 19% | 14 h 50 min |
| July 19 | 83°F | 66°F | 35% | 19% | 14 h 50 min |
| July 20 | 83°F | 66°F | 35% | 19% | 14 h 50 min |
| July 21 | 83°F | 66°F | 35% | 19% | 14 h 40 min |
| July 22 | 83°F | 66°F | 35% | 19% | 14 h 40 min |
| July 23 | 83°F | 67°F | 35% | 20% | 14 h 40 min |
| July 24 | 83°F | 67°F | 35% | 20% | 14 h 40 min |
| July 25 | 83°F | 67°F | 35% | 20% | 14 h 40 min |
| July 26 | 83°F | 67°F | 35% | 20% | 14 h 40 min |
| July 27 | 83°F | 67°F | 35% | 20% | 14 h 30 min |
| July 28 | 83°F | 67°F | 35% | 20% | 14 h 30 min |
| July 29 | 83°F | 67°F | 35% | 20% | 14 h 30 min |
| July 30 | 82°F | 67°F | 35% | 20% | 14 h 30 min |
| July 31 | 82°F | 66°F | 35% | 20% | 14 h 30 min |
- Normal high
- 82°FJuly average
- Normal low
- 66°FJuly average
- Precipitation
- 3.36 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 15 h 10 min to 14 h 30 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 24
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014758; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in New Haven in July?
On a given July day the chance of 0.01 inch or more is 35% on average, highest around July 23 (35%). In all, 3.36 in falls on 10 days of a normal July, 1 of them with an inch or more.
In a normal July in New Haven, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014758.
What are the records for July in New Haven?
The warmest July temperature on this station's record (since 1948) is 101°F, on July 22, 2011; the coldest is 50°F, on July 11, 2002. The wettest July brought 8.73 in (1971).
The July mean against the 1991-2020 normal of 73.9°F: 2021 74.7°F (+0.8), 2022 78.1°F (+4.2), 2023 78.0°F (+4.1), 2024 78.3°F (+4.4), 2025 78.8°F (+4.9). 5 of 5 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.7°F | +0.8°F | 6.82 in |
| 2022 | 78.1°F | +4.2°F | 0.97 in |
| 2023 | 78.0°F | +4.1°F | 8.22 in |
| 2024 | 78.3°F | +4.4°F | 4.33 in |
| 2025 | 78.8°F | +4.9°F | 2.55 in |
Source: records: ACIS, station USW00014758; recent months: ACIS, station USW00014758. Records and recent months use complete months only.
How does July in New Haven compare across Connecticut?
Across the 13 places PlainClimate covers in Connecticut, July normal highs run from 78°F in Norfolk to 85°F in Hartford; New Haven's is 82°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.