Exeter Weather in September
Average highs run from 80°F on September 1 to 71°F on September 30, and lows from 58°F to 48°F. Normal precipitation for the month is 4.36 in over about 9 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 76°F
- Average low
- 53°F
- Precipitation
- 4.36 in
- Record high
- 93°FSep 7, 1983
- Record low
- 35°FSep 28, 1965
- Chance of a freeze
- 12%
- Daylight
- 13 h 07 min to 11 h 48 min
- Cloud cover
- 54%
- Humidity
- 78%
- Dew point
- 58°F
- Wind
- 7.4 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 |
|---|---|---|---|---|---|---|
| Sep 1 | 80°F | 58°F | 87°F 1961 | 50°F 1975 | 30% | 0% |
| Sep 2 | 80°F | 58°F | 90°F 1966 | 51°F 1964 | 30% | 0% |
| Sep 3 | 80°F | 57°F | 90°F 1973 | 48°F 1967 | 30% | 0% |
| Sep 4 | 79°F | 57°F | 87°F 1973 | 48°F 1967 | 30% | 0% |
| Sep 5 | 79°F | 57°F | 91°F 1961 | 50°F 1963 | 30% | 0% |
| Sep 6 | 79°F | 57°F | 85°F 1959 | 50°F 1965 | 30% | 0% |
| Sep 7 | 79°F | 56°F | 93°F 1983 | 48°F 1962 | 30% | 0% |
| Sep 8 | 78°F | 56°F | 85°F 1983 | 49°F 1978 | 30% | 0% |
| Sep 9 | 78°F | 56°F | 87°F 1959 | 42°F 1982 | 30% | 0% |
| Sep 10 | 78°F | 55°F | 89°F 1961 | 45°F 1984 | 30% | 0% |
| Sep 11 | 77°F | 55°F | 89°F 1989 | 40°F 1980 | 30% | 0% |
| Sep 12 | 77°F | 55°F | 87°F 1961 | 44°F 1967 | 30% | 0% |
| Sep 13 | 77°F | 55°F | 84°F 1961 | 39°F 1984 | 30% | 0% |
| Sep 14 | 77°F | 54°F | 81°F 1976 | 43°F 1963 | 31% | 0% |
| Sep 15 | 76°F | 54°F | 79°F 1962 | 41°F 1986 | 31% | 0% |
| Sep 16 | 76°F | 54°F | 78°F 1965 | 45°F 1964 | 31% | 0% |
| Sep 17 | 76°F | 53°F | 78°F 1979 | 45°F 1959 | 31% | 0% |
| Sep 18 | 75°F | 53°F | 81°F 1965 | 40°F 1982 | 31% | 0% |
| Sep 19 | 75°F | 52°F | 82°F 1967 | 43°F 1959 | 32% | 0% |
| Sep 20 | 75°F | 52°F | 82°F 1983 | 39°F 1979 | 32% | 0% |
| Sep 21 | 74°F | 52°F | 82°F 2000 | 40°F 1962 | 32% | 0% |
| Sep 22 | 74°F | 51°F | 88°F 1980 | 44°F 1973 | 33% | 0% |
| Sep 23 | 74°F | 51°F | 88°F 1980 | 45°F 1963 | 33% | 0% |
| Sep 24 | 73°F | 51°F | 81°F 1958 | 40°F 1963 | 33% | 0% |
| Sep 25 | 73°F | 50°F | 78°F 1979 | 40°F 1963 | 34% | 0% |
| Sep 26 | 72°F | 50°F | 81°F 1958 | 41°F 1967 | 34% | 0% |
| Sep 27 | 72°F | 49°F | 79°F 2003 | 42°F 1966 | 34% | 0% |
| Sep 28 | 72°F | 49°F | 78°F 1988 | 35°F 1965 | 35% | 0% |
| Sep 29 | 71°F | 49°F | 78°F 1959 | 39°F 1991 | 35% | 0% |
| Sep 30 | 71°F | 48°F | 78°F 1959 | 40°F 1991 | 35% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- September 1
- sunrise 6:12 AM, sunset 7:19 PM
- September 30
- sunrise 6:42 AM, sunset 6:30 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00374266 (Kingston), public domain. Records: NOAA GHCN-Daily, station USC00375215, 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.