Bound Brook climate

Bound Brook Weather in September

NOAA 1991-2020 normals for Plainfield, 12.1 km from Bound Brook

Average highs run from 84°F on September 1 to 73°F on September 30, and lows from 62°F to 52°F. Normal precipitation for the month is 4.27 in over about 9 wet days.

September day by day

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

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

September at a glance

Average high
79°F
Average low
58°F
Precipitation
4.27 in
Record high
97°FSep 8, 2015
Record low
34°FSep 22, 2020
Chance of a freeze
0%
Days of 90°F or more
1.3
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
55%
Humidity
74%
Dew point
57°F
Wind
6.0 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
Sep 184°F62°F96°F 201049°F 200929%0%
Sep 284°F61°F96°F 201044°F 201729%0%
Sep 384°F61°F95°F 201547°F 202429%0%
Sep 484°F61°F94°F 200846°F 202429%0%
Sep 583°F61°F93°F 201846°F 201029%0%
Sep 683°F61°F95°F 201844°F 201028%0%
Sep 783°F60°F94°F 202344°F 201328%0%
Sep 882°F60°F97°F 201545°F 202428%0%
Sep 982°F60°F95°F 201540°F 202428%0%
Sep 1082°F60°F95°F 201648°F 201228%0%
Sep 1182°F59°F93°F 201344°F 201228%0%
Sep 1281°F59°F91°F 200545°F 200628%0%
Sep 1381°F59°F94°F 200543°F 200228%0%
Sep 1480°F58°F92°F 200844°F 201328%0%
Sep 1580°F58°F87°F 200540°F 201328%0%
Sep 1680°F58°F87°F 200540°F 200728%0%
Sep 1779°F57°F88°F 201541°F 200028%0%
Sep 1879°F57°F87°F 201539°F 201328%0%
Sep 1978°F57°F87°F 202437°F 202028%0%
Sep 2078°F56°F85°F 201638°F 201928%0%
Sep 2178°F56°F88°F 201635°F 202028%0%
Sep 2277°F56°F90°F 201034°F 202028%0%
Sep 2377°F55°F92°F 201938°F 201429%0%
Sep 2476°F55°F93°F 201736°F 201329%0%
Sep 2576°F54°F93°F 201738°F 201229%0%
Sep 2675°F54°F91°F 200739°F 200129%0%
Sep 2775°F54°F91°F 201740°F 200129%0%
Sep 2874°F53°F87°F 201439°F 200129%0%
Sep 2974°F53°F83°F 201536°F 200029%0%
Sep 3073°F52°F83°F 202535°F 200029%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Bound Brook, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:25 AM, sunset 7:30 PM
September 30
sunrise 6:54 AM, sunset 6:42 PM

Every day of September: 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.