New Haven Weather in August
Average highs run from 86°F on August 1 to 84°F on August 31, and lows from 65°F to 62°F. Normal precipitation for the month is 4.09 in over about 8 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 85°F
- Average low
- 64°F
- Precipitation
- 4.09 in
- Record high
- 105°FAug 20, 1983
- Record low
- 43°FAug 13, 1964
- Chance of a freeze
- 0%
- Days of 90°F or more
- 7.3
- Daylight
- 14 h 05 min to 13 h 01 min
- Cloud cover
- 50%
- Humidity
- 69%
- Dew point
- 65°F
- Wind
- 5.4 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 86°F | 65°F | 99°F 1954 | 53°F 1971 | 28% | 0% |
| Aug 2 | 86°F | 65°F | 97°F 1991 | 54°F 1977 | 28% | 0% |
| Aug 3 | 86°F | 65°F | 99°F 1952 | 49°F 1965 | 28% | 0% |
| Aug 4 | 86°F | 65°F | 99°F 2002 | 51°F 1976 | 28% | 0% |
| Aug 5 | 86°F | 65°F | 98°F 1981 | 51°F 2017 | 28% | 0% |
| Aug 6 | 86°F | 65°F | 98°F 1981 | 51°F 1957 | 28% | 0% |
| Aug 7 | 86°F | 65°F | 96°F 1980 | 49°F 1957 | 28% | 0% |
| Aug 8 | 86°F | 65°F | 98°F 1980 | 49°F 1989 | 28% | 0% |
| Aug 9 | 86°F | 65°F | 100°F 1980 | 49°F 1989 | 28% | 0% |
| Aug 10 | 86°F | 65°F | 98°F 1980 | 51°F 1972 | 28% | 0% |
| Aug 11 | 86°F | 65°F | 99°F 1980 | 50°F 1962 | 28% | 0% |
| Aug 12 | 86°F | 65°F | 96°F 1984 | 46°F 2012 | 28% | 0% |
| Aug 13 | 86°F | 65°F | 97°F 1999 | 43°F 1964 | 28% | 0% |
| Aug 14 | 86°F | 65°F | 95°F 1965 | 48°F 2004 | 28% | 0% |
| Aug 15 | 86°F | 65°F | 101°F 2007 | 51°F 1991 | 28% | 0% |
| Aug 16 | 86°F | 65°F | 102°F 2007 | 49°F 2004 | 27% | 0% |
| Aug 17 | 86°F | 64°F | 98°F 1965 | 49°F 1979 | 27% | 0% |
| Aug 18 | 86°F | 64°F | 98°F 1954 | 53°F 1976 | 27% | 0% |
| Aug 19 | 85°F | 64°F | 100°F 1962 | 52°F 1958 | 27% | 0% |
| Aug 20 | 85°F | 64°F | 105°F 1983 | 49°F 1953 | 27% | 0% |
| Aug 21 | 85°F | 64°F | 104°F 1983 | 51°F 1953 | 27% | 0% |
| Aug 22 | 85°F | 64°F | 103°F 1983 | 49°F 1982 | 26% | 0% |
| Aug 23 | 85°F | 64°F | 98°F 1962 | 49°F 1973 | 26% | 0% |
| Aug 24 | 85°F | 64°F | 98°F 1983 | 47°F 1951 | 26% | 0% |
| Aug 25 | 85°F | 63°F | 95°F 1953 | 50°F 1951 | 26% | 0% |
| Aug 26 | 85°F | 63°F | 98°F 1983 | 49°F 1958 | 26% | 0% |
| Aug 27 | 85°F | 63°F | 98°F 1953 | 48°F 1968 | 26% | 0% |
| Aug 28 | 84°F | 63°F | 100°F 1953 | 46°F 1968 | 25% | 0% |
| Aug 29 | 84°F | 63°F | 99°F 1953 | 45°F 1965 | 25% | 0% |
| Aug 30 | 84°F | 62°F | 98°F 1953 | 51°F 1971 | 25% | 0% |
| Aug 31 | 84°F | 62°F | 102°F 1953 | 48°F 1976 | 25% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- August 1
- sunrise 6:46 AM, sunset 8:51 PM
- August 31
- sunrise 7:12 AM, sunset 8:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00152512 (Elizabethtown Wp Cs), public domain. Records: NOAA GHCN-Daily, station USC00150397, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.