Devon climate

Devon Weather in July

NOAA 1991-2020 normals for Norristown, 10.3 km from Devon

Average highs run from 88°F on July 1 to 88°F on July 31, and lows from 66°F to 66°F. Normal precipitation for the month is 4.70 in over about 11 wet days.

July day by day

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

Normal daily high and low temperature at Devon, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
89°F
Average low
67°F
Precipitation
4.70 in
Record high
105°FJul 4, 1966
Record low
45°FJul 9, 1984
Chance of a freeze
0%
Days of 90°F or more
15.0
Daylight
14 h 58 min to 14 h 18 min
Cloud cover
57%
Humidity
70%
Dew point
64°F
Wind
4.3 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
Jul 188°F66°F101°F 196448°F 194335%0%
Jul 288°F66°F100°F 190147°F 198235%0%
Jul 389°F66°F101°F 196646°F 200135%0%
Jul 489°F66°F105°F 196650°F 198634%0%
Jul 589°F66°F103°F 196648°F 197134%0%
Jul 689°F66°F97°F 201051°F 197934%0%
Jul 789°F67°F102°F 201047°F 200134%0%
Jul 889°F67°F100°F 198648°F 198435%0%
Jul 989°F67°F103°F 193645°F 198435%0%
Jul 1089°F67°F105°F 193648°F 198335%0%
Jul 1189°F67°F103°F 198850°F 198335%0%
Jul 1289°F67°F100°F 198848°F 197835%0%
Jul 1389°F67°F97°F 196650°F 200135%0%
Jul 1489°F67°F99°F 195450°F 200935%0%
Jul 1589°F67°F96°F 198851°F 197135%0%
Jul 1689°F67°F97°F 190053°F 192935%0%
Jul 1789°F67°F101°F 198853°F 197435%0%
Jul 1889°F67°F100°F 198851°F 197635%0%
Jul 1989°F67°F98°F 193051°F 192435%0%
Jul 2089°F67°F99°F 195752°F 194136%0%
Jul 2189°F67°F104°F 195750°F 200136%0%
Jul 2289°F67°F103°F 195551°F 193636%0%
Jul 2389°F67°F104°F 201150°F 197736%0%
Jul 2489°F67°F100°F 201150°F 198536%0%
Jul 2589°F67°F97°F 201153°F 201437%0%
Jul 2689°F67°F97°F 194047°F 197637%0%
Jul 2788°F67°F98°F 194049°F 197737%0%
Jul 2888°F67°F98°F 194150°F 197737%0%
Jul 2988°F67°F98°F 196352°F 198437%0%
Jul 3088°F67°F98°F 200251°F 197137%0%
Jul 3188°F66°F102°F 195452°F 189537%0%

Chance of rain

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

July 1
sunrise 5:37 AM, sunset 8:35 PM
July 31
sunrise 5:59 AM, sunset 8:17 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00366370 (Norristown), public domain. Records: NOAA GHCN-Daily, station USC00369464, 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.