Harleysville climate

Harleysville Weather in October

NOAA 1991-2020 normals for Graterford 1 E, 6.5 km from Harleysville

Average highs run from 72°F on October 1 to 61°F on October 31, and lows from 47°F to 37°F. Normal precipitation for the month is 4.52 in over about 9 wet days.

October day by day

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

Normal daily high and low temperature at Harleysville, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
66°F
Average low
41°F
Precipitation
4.52 in
Record high
91°FOct 3, 2019
Record low
15°FOct 24, 2008
Chance of a freeze
86%
Daylight
11 h 46 min to 10 h 30 min
Cloud cover
58%
Humidity
78%
Dew point
46°F
Wind
4.7 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
Oct 172°F47°F80°F 202532°F 201227%0%
Oct 272°F46°F84°F 201929°F 199727%0%
Oct 371°F46°F91°F 201931°F 200328%0%
Oct 471°F45°F83°F 202332°F 200328%0%
Oct 571°F45°F84°F 200734°F 199628%0%
Oct 670°F45°F84°F 201333°F 200328%0%
Oct 770°F44°F86°F 199732°F 200328%0%
Oct 869°F44°F84°F 200730°F 199928%0%
Oct 969°F44°F88°F 200726°F 200128%0%
Oct 1068°F43°F86°F 200732°F 200128%0%
Oct 1168°F43°F81°F 201834°F 202428%0%
Oct 1268°F43°F78°F 201028°F 199628%0%
Oct 1367°F42°F77°F 200327°F 201228%0%
Oct 1467°F42°F79°F 202425°F 201228%0%
Oct 1567°F42°F78°F 201428°F 200628%0%
Oct 1666°F41°F81°F 202128°F 200628%0%
Oct 1766°F41°F81°F 202130°F 202428%0%
Oct 1865°F41°F80°F 199626°F 201528%0%
Oct 1965°F40°F83°F 201623°F 201528%0%
Oct 2065°F40°F83°F 201626°F 200828%0%
Oct 2164°F40°F77°F 201627°F 200828%0%
Oct 2264°F39°F81°F 202427°F 201827%0%
Oct 2364°F39°F84°F 202417°F 200827%0%
Oct 2463°F39°F78°F 202415°F 200827%0%
Oct 2563°F38°F81°F 200126°F 201327%0%
Oct 2662°F38°F77°F 202125°F 200827%0%
Oct 2762°F38°F80°F 202323°F 200827%0%
Oct 2862°F38°F75°F 202323°F 200827%0%
Oct 2961°F37°F80°F 202324°F 200127%0%
Oct 3061°F37°F70°F 199924°F 200827%0%
Oct 3161°F37°F79°F 201623°F 200727%0%

Chance of rain

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

October 1
sunrise 6:58 AM, sunset 6:44 PM
October 31
sunrise 7:30 AM, sunset 6:00 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00363437 (Graterford 1 E), public domain. Records: NOAA GHCN-Daily, station USC00367938, 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.