Broomall climate

Broomall Weather in May

NOAA 1991-2020 normals for Norristown, 14.3 km from Broomall

Average highs run from 71°F on May 1 to 79°F on May 31, and lows from 47°F to 57°F. Normal precipitation for the month is 4.25 in over about 14 wet days.

May day by day

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

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

May at a glance

Average high
75°F
Average low
52°F
Precipitation
4.25 in
Record high
98°FMay 19, 2026
Record low
28°FMay 11, 1966
Chance of a freeze
2%
Days of 90°F or more
2.5
Daylight
13 h 55 min to 14 h 49 min
Cloud cover
65%
Humidity
78%
Dew point
53°F
Wind
5.1 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
May 171°F47°F90°F 194234°F 197843%0%
May 271°F48°F90°F 202435°F 196043%0%
May 371°F48°F91°F 201835°F 196643%0%
May 472°F48°F91°F 200135°F 195743%0%
May 572°F49°F88°F 195533°F 196644%0%
May 672°F49°F90°F 198642°F 194544%0%
May 772°F49°F91°F 200035°F 197044%0%
May 873°F50°F90°F 200037°F 194744%0%
May 973°F50°F91°F 196333°F 194744%0%
May 1073°F50°F92°F 197033°F 196644%0%
May 1174°F51°F90°F 194828°F 196644%0%
May 1274°F51°F90°F 195937°F 196245%0%
May 1374°F51°F90°F 199137°F 196745%0%
May 1474°F51°F92°F 195640°F 199645%0%
May 1575°F52°F89°F 200439°F 196645%0%
May 1675°F52°F90°F 195140°F 195945%0%
May 1775°F52°F92°F 197437°F 195646%0%
May 1875°F53°F96°F 202641°F 197346%0%
May 1976°F53°F98°F 202642°F 197346%0%
May 2076°F53°F95°F 202643°F 200246%0%
May 2176°F54°F95°F 202241°F 200246%0%
May 2276°F54°F96°F 194144°F 200247%0%
May 2377°F54°F94°F 199241°F 196147%0%
May 2477°F55°F90°F 196440°F 196347%0%
May 2577°F55°F96°F 199140°F 196346%0%
May 2678°F55°F92°F 201043°F 196146%0%
May 2778°F56°F95°F 199142°F 196146%0%
May 2878°F56°F94°F 194141°F 196146%0%
May 2978°F56°F95°F 199145°F 194946%0%
May 3079°F57°F97°F 199141°F 196146%0%
May 3179°F57°F97°F 199142°F 196545%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Broomall, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 6:01 AM, sunset 7:56 PM
May 31
sunrise 5:35 AM, sunset 8:24 PM

Every day of May: 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 USW00013739, 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.