Quincy Weather in May
Average highs run from 69°F on May 1 to 76°F on May 31, and lows from 43°F to 51°F. Normal precipitation for the month is 0.69 in over about 5 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
- 73°F
- Average low
- 47°F
- Precipitation
- 0.69 in
- Record high
- 101°FMay 31, 1986
- Record low
- 28°FMay 8, 2002
- Chance of a freeze
- 20%
- Days of 90°F or more
- 0.9
- Daylight
- 14 h 28 min to 15 h 39 min
- Cloud cover
- 59%
- Humidity
- 56%
- Dew point
- 39°F
- Wind
- 7.2 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 | 69°F | 43°F | 90°F 1998 | 29°F 1954 | 13% |
| May 2 | 69°F | 43°F | 85°F 2014 | 30°F 1997 | 13% |
| May 3 | 69°F | 43°F | 88°F 1966 | 31°F 1949 | 13% |
| May 4 | 70°F | 44°F | 90°F 1966 | 29°F 1959 | 13% |
| May 5 | 70°F | 44°F | 96°F 1966 | 30°F 2010 | 13% |
| May 6 | 70°F | 44°F | 92°F 1992 | 30°F 2002 | 13% |
| May 7 | 71°F | 45°F | 96°F 1987 | 30°F 2003 | 14% |
| May 8 | 71°F | 45°F | 96°F 1987 | 28°F 2002 | 14% |
| May 9 | 71°F | 45°F | 94°F 1987 | 31°F 2010 | 14% |
| May 10 | 72°F | 46°F | 96°F 1969 | 32°F 1970 | 14% |
| May 11 | 72°F | 46°F | 94°F 1949 | 32°F 1985 | 14% |
| May 12 | 72°F | 46°F | 96°F 1993 | 34°F 1992 | 14% |
| May 13 | 73°F | 47°F | 92°F 1949 | 32°F 2022 | 14% |
| May 14 | 73°F | 47°F | 96°F 1973 | 32°F 1992 | 15% |
| May 15 | 73°F | 47°F | 94°F 1973 | 35°F 2003 | 15% |
| May 16 | 74°F | 47°F | 96°F 2006 | 29°F 2003 | 15% |
| May 17 | 74°F | 48°F | 96°F 2006 | 31°F 2011 | 15% |
| May 18 | 74°F | 48°F | 96°F 2006 | 36°F 1989 | 15% |
| May 19 | 74°F | 48°F | 93°F 2023 | 34°F 2003 | 15% |
| May 20 | 75°F | 48°F | 93°F 2023 | 36°F 1960 | 15% |
| May 21 | 75°F | 49°F | 93°F 1958 | 32°F 2010 | 15% |
| May 22 | 75°F | 49°F | 96°F 1958 | 31°F 1960 | 15% |
| May 23 | 75°F | 49°F | 98°F 2001 | 32°F 1964 | 15% |
| May 24 | 75°F | 49°F | 93°F 1958 | 33°F 1989 | 15% |
| May 25 | 75°F | 50°F | 96°F 1958 | 35°F 1984 | 15% |
| May 26 | 76°F | 50°F | 98°F 1958 | 38°F 1978 | 15% |
| May 27 | 76°F | 50°F | 95°F 1958 | 35°F 2011 | 15% |
| May 28 | 76°F | 50°F | 95°F 2005 | 35°F 2011 | 15% |
| May 29 | 76°F | 50°F | 97°F 1983 | 36°F 1976 | 15% |
| May 30 | 76°F | 51°F | 100°F 1986 | 38°F 1967 | 15% |
| May 31 | 76°F | 51°F | 101°F 1986 | 35°F 1984 | 15% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:43 AM, sunset 8:11 PM
- May 31
- sunrise 5:08 AM, sunset 8:47 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00456880 (Quincy), public domain. Records: NOAA GHCN-Daily, station USW00024141, 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.