Dunellen climate

Dunellen Weather in May

NOAA 1991-2020 normals for Plainfield, 6.1 km from Dunellen

Average highs run from 71°F on May 1 to 79°F on May 31, and lows from 47°F to 55°F. Normal precipitation for the month is 4.01 in over about 11 wet days.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Dunellen, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
75°F
Average low
51°F
Precipitation
4.01 in
Record high
96°FMay 19, 2026
Record low
29°FMay 21, 2002
Chance of a freeze
5%
Days of 90°F or more
1.9
Daylight
13 h 57 min to 14 h 52 min
Cloud cover
65%
Humidity
79%
Dew point
52°F
Wind
6.3 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 171°F47°F92°F 201030°F 200837%0%
May 272°F47°F89°F 200133°F 200537%0%
May 372°F48°F91°F 200131°F 200537%0%
May 472°F48°F92°F 200131°F 200237%0%
May 572°F48°F85°F 200033°F 200537%0%
May 673°F49°F88°F 200033°F 201137%0%
May 773°F49°F91°F 200035°F 200636%0%
May 873°F49°F91°F 200036°F 200736%0%
May 973°F50°F90°F 200033°F 202036%0%
May 1074°F50°F84°F 201430°F 202036%0%
May 1174°F50°F88°F 200431°F 201036%0%
May 1274°F50°F90°F 200438°F 200936%0%
May 1374°F51°F88°F 200431°F 202036%0%
May 1474°F51°F82°F 201031°F 201336%0%
May 1575°F51°F88°F 200435°F 201936%0%
May 1675°F51°F85°F 200733°F 201636%0%
May 1775°F52°F91°F 201737°F 202336%0%
May 1875°F52°F94°F 202632°F 202336%0%
May 1976°F52°F96°F 202631°F 200236%0%
May 2076°F52°F93°F 202632°F 200236%0%
May 2176°F53°F93°F 202229°F 200236%0%
May 2276°F53°F91°F 202232°F 200236%0%
May 2377°F53°F91°F 202136°F 200236%0%
May 2477°F53°F89°F 200437°F 201536%0%
May 2577°F54°F89°F 200742°F 200836%0%
May 2677°F54°F93°F 201042°F 202336%0%
May 2778°F54°F89°F 201536°F 201336%0%
May 2878°F55°F91°F 201244°F 200836%0%
May 2978°F55°F92°F 200638°F 200836%0%
May 3078°F55°F92°F 201338°F 200436%0%
May 3179°F55°F95°F 202238°F 202636%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Dunellen, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 5:57 AM, sunset 7:54 PM
May 31
sunrise 5:30 AM, sunset 8:22 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00287079 (Plainfield), public domain. Records: NOAA GHCN-Daily, station USW00054785, 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.