Newtown Weather in May
Average highs run from 80°F on May 1 to 82°F on May 31, and lows from 67°F to 69°F. Normal precipitation for the month is 4.91 in over about 20 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 81°F
- Average low
- 68°F
- Precipitation
- 4.91 in
- Record high
- 93°FMay 31, 1988
- Record low
- 60°FMay 2, 1989
- Chance of a freeze
- 0%
- Daylight
- 12 h 56 min to 13 h 21 min
- Cloud cover
- 48%
- Humidity
- 74%
- Dew point
- 67°F
- Wind
- 13.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 80°F | 67°F | 88°F 2025 | 62°F 1989 | 67% |
| May 2 | 80°F | 67°F | 89°F 1978 | 60°F 1989 | 66% |
| May 3 | 80°F | 67°F | 88°F 2017 | 60°F 1989 | 66% |
| May 4 | 80°F | 67°F | 88°F 1974 | 63°F 1946 | 66% |
| May 5 | 80°F | 67°F | 90°F 2005 | 62°F 1981 | 66% |
| May 6 | 80°F | 67°F | 89°F 1970 | 65°F 1996 | 66% |
| May 7 | 80°F | 67°F | 88°F 1970 | 64°F 1954 | 66% |
| May 8 | 80°F | 67°F | 89°F 1996 | 64°F 1957 | 66% |
| May 9 | 80°F | 67°F | 89°F 1979 | 62°F 1992 | 66% |
| May 10 | 80°F | 67°F | 89°F 2005 | 61°F 1987 | 66% |
| May 11 | 80°F | 67°F | 90°F 2005 | 62°F 1987 | 66% |
| May 12 | 80°F | 67°F | 90°F 1979 | 63°F 1987 | 66% |
| May 13 | 80°F | 67°F | 89°F 2005 | 64°F 1952 | 66% |
| May 14 | 80°F | 68°F | 90°F 1996 | 63°F 1987 | 66% |
| May 15 | 81°F | 68°F | 89°F 1987 | 63°F 1952 | 66% |
| May 16 | 81°F | 68°F | 89°F 2014 | 62°F 2006 | 66% |
| May 17 | 81°F | 68°F | 89°F 1988 | 65°F 2006 | 66% |
| May 18 | 81°F | 68°F | 90°F 1988 | 64°F 1985 | 66% |
| May 19 | 81°F | 68°F | 89°F 1945 | 64°F 1985 | 66% |
| May 20 | 81°F | 68°F | 90°F 1996 | 60°F 1985 | 66% |
| May 21 | 81°F | 68°F | 90°F 1968 | 64°F 1985 | 67% |
| May 22 | 81°F | 68°F | 91°F 1968 | 64°F 1983 | 67% |
| May 23 | 81°F | 68°F | 91°F 1995 | 65°F 1979 | 67% |
| May 24 | 81°F | 68°F | 90°F 1966 | 65°F 1959 | 67% |
| May 25 | 81°F | 68°F | 91°F 2019 | 65°F 1944 | 67% |
| May 26 | 82°F | 69°F | 90°F 1992 | 65°F 1972 | 67% |
| May 27 | 82°F | 69°F | 89°F 1989 | 65°F 1973 | 68% |
| May 28 | 82°F | 69°F | 90°F 2005 | 65°F 1964 | 68% |
| May 29 | 82°F | 69°F | 92°F 1987 | 65°F 1964 | 68% |
| May 30 | 82°F | 69°F | 92°F 1992 | 65°F 1964 | 69% |
| May 31 | 82°F | 69°F | 93°F 1988 | 65°F 1982 | 69% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (HST).
- May 1
- sunrise 6:01 AM, sunset 6:57 PM
- May 31
- sunrise 5:49 AM, sunset 7:10 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00519281 (Waihee 837.5), public domain. Records: NOAA GHCN-Daily, station USW00022521, 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.