Penryn climate

Penryn Weather in September

NOAA 1991-2020 normals for Landisville 2 Nw, 10.8 km from Penryn

Average highs run from 81°F on September 1 to 71°F on September 30, and lows from 57°F to 47°F. Normal precipitation for the month is 4.68 in over about 10 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 Penryn, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
52°F
Precipitation
4.68 in
Record high
98°FSep 4, 2023
Record low
37°FSep 29, 2000
Chance of a freeze
13%
Days of 90°F or more
2.0
Daylight
13 h 04 min to 11 h 48 min
Cloud cover
57%
Humidity
72%
Dew point
56°F
Wind
5.4 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°F57°F96°F 201049°F 200931%0%
Sep 281°F57°F95°F 201049°F 200131%0%
Sep 380°F56°F94°F 202348°F 202431%0%
Sep 480°F56°F98°F 202348°F 202431%0%
Sep 580°F56°F95°F 202349°F 200031%0%
Sep 680°F56°F96°F 202346°F 200031%0%
Sep 779°F55°F98°F 202344°F 200031%0%
Sep 879°F55°F94°F 201648°F 202431%0%
Sep 979°F55°F93°F 201544°F 202431%0%
Sep 1079°F55°F95°F 201647°F 201731%0%
Sep 1178°F54°F94°F 201345°F 201230%0%
Sep 1278°F54°F93°F 202049°F 201230%0%
Sep 1378°F54°F90°F 200546°F 200230%0%
Sep 1477°F53°F91°F 201646°F 201430%0%
Sep 1577°F53°F88°F 202142°F 201330%0%
Sep 1677°F53°F87°F 200542°F 200730%0%
Sep 1776°F52°F84°F 200542°F 200730%0%
Sep 1876°F52°F86°F 201641°F 201330%0%
Sep 1975°F51°F86°F 202441°F 202030%0%
Sep 2075°F51°F85°F 201739°F 202030%0%
Sep 2175°F51°F87°F 201938°F 202031%0%
Sep 2274°F50°F91°F 201039°F 202031%0%
Sep 2374°F50°F93°F 201942°F 199931%0%
Sep 2474°F50°F92°F 201040°F 201331%0%
Sep 2573°F49°F90°F 201739°F 201231%0%
Sep 2673°F49°F89°F 200740°F 200131%0%
Sep 2772°F48°F89°F 201740°F 200031%0%
Sep 2872°F48°F84°F 201941°F 200031%0%
Sep 2972°F48°F83°F 201937°F 200031%0%
Sep 3071°F47°F77°F 201037°F 200031%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Penryn, 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 6:33 AM, sunset 7:37 PM
September 30
sunrise 7:01 AM, sunset 6:49 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00364778 (Landisville 2 Nw), public domain. Records: NOAA GHCN-Daily, station USW00054737, 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.