Penryn climate

Penryn Weather in May

NOAA 1991-2020 normals for Auburn, 9.6 km from Penryn

Average highs run from 72°F on May 1 to 81°F on May 31, and lows from 48°F to 55°F. Normal precipitation for the month is 1.65 in over about 5 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 Penryn, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
77°F
Average low
52°F
Precipitation
1.65 in
Record high
102°FMay 31, 1910
Record low
25°FMay 8, 1933
Chance of a freeze
0%
Days of 90°F or more
2.2
Daylight
13 h 50 min to 14 h 42 min
Cloud cover
49%
Humidity
61%
Dew point
48°F
Wind
6.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 172°F48°F90°F 198134°F 195120%
May 273°F48°F95°F 194735°F 196419%
May 373°F49°F95°F 194735°F 196419%
May 473°F49°F93°F 191835°F 197519%
May 574°F49°F90°F 199034°F 192419%
May 674°F49°F91°F 194732°F 191218%
May 774°F50°F95°F 198734°F 195018%
May 875°F50°F96°F 193125°F 193318%
May 975°F50°F92°F 200132°F 195318%
May 1075°F50°F94°F 193430°F 202217%
May 1176°F51°F94°F 193429°F 202217%
May 1276°F51°F92°F 198736°F 202217%
May 1376°F51°F96°F 192735°F 191217%
May 1476°F51°F97°F 192737°F 195516%
May 1577°F52°F98°F 192739°F 191716%
May 1677°F52°F100°F 200838°F 191716%
May 1777°F52°F100°F 200838°F 197116%
May 1878°F52°F96°F 200935°F 197416%
May 1978°F52°F97°F 200837°F 197415%
May 2078°F53°F98°F 194738°F 192715%
May 2178°F53°F100°F 194738°F 192715%
May 2279°F53°F99°F 194738°F 201014%
May 2379°F53°F97°F 194342°F 191414%
May 2479°F53°F98°F 194336°F 201014%
May 2580°F53°F99°F 198238°F 192313%
May 2680°F54°F96°F 195135°F 191113%
May 2780°F54°F96°F 195139°F 190513%
May 2880°F54°F97°F 191935°F 201912%
May 2981°F54°F101°F 198440°F 192712%
May 3081°F54°F100°F 195039°F 192312%
May 3181°F55°F102°F 191039°F 201111%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Penryn, in percent.051015201102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:07 AM, sunset 7:57 PM
May 31
sunrise 5:42 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 USC00040383 (Auburn), public domain. Records: NOAA GHCN-Daily, station USC00040383, 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.