Smithfield climate

Smithfield Weather in September

NOAA 1991-2020 normals for Grays Landing, 9.5 km from Smithfield

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 58°F to 49°F. Normal precipitation for the month is 3.44 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 Smithfield, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
54°F
Precipitation
3.44 in
Record high
102°FSep 3, 1953
Record low
30°FSep 24, 1983
Chance of a freeze
0%
Days of 90°F or more
1.4
Daylight
13 h 03 min to 11 h 48 min
Cloud cover
56%
Humidity
69%
Dew point
53°F
Wind
3.6 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 181°F58°F97°F 195346°F 196731%0%
Sep 281°F58°F99°F 195343°F 194930%0%
Sep 381°F57°F102°F 195345°F 194630%0%
Sep 480°F57°F95°F 195342°F 199730%0%
Sep 580°F57°F93°F 195440°F 197430%0%
Sep 680°F57°F95°F 199843°F 196230%0%
Sep 780°F56°F92°F 200741°F 198830%0%
Sep 880°F56°F94°F 201540°F 195130%0%
Sep 979°F56°F94°F 195941°F 194930%0%
Sep 1079°F55°F93°F 201638°F 195630%0%
Sep 1179°F55°F93°F 195239°F 196930%0%
Sep 1278°F55°F95°F 195240°F 196930%0%
Sep 1378°F55°F94°F 195239°F 198530%0%
Sep 1478°F54°F95°F 199834°F 196430%0%
Sep 1577°F54°F91°F 199838°F 198530%0%
Sep 1677°F54°F91°F 195535°F 196630%0%
Sep 1777°F53°F93°F 195537°F 198430%0%
Sep 1876°F53°F89°F 195533°F 195930%0%
Sep 1976°F53°F91°F 196539°F 195631%0%
Sep 2076°F52°F89°F 196536°F 195631%0%
Sep 2175°F52°F90°F 196531°F 195631%0%
Sep 2275°F52°F91°F 196536°F 199931%0%
Sep 2375°F51°F91°F 201632°F 194732%0%
Sep 2474°F51°F89°F 197030°F 198332%0%
Sep 2574°F51°F89°F 195935°F 194932%0%
Sep 2673°F50°F89°F 195937°F 196532%0%
Sep 2773°F50°F88°F 194633°F 194733%0%
Sep 2873°F50°F90°F 195934°F 195733%0%
Sep 2972°F49°F91°F 195333°F 195133%0%
Sep 3072°F49°F91°F 195333°F 189233%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Smithfield, 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).

September 1
sunrise 6:47 AM, sunset 7:50 PM
September 30
sunrise 7:15 AM, sunset 7:03 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00363451 (Grays Landing), public domain. Records: NOAA GHCN-Daily, station USW00013736, 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.