Mount Hermon climate

Mount Hermon Weather in May

NOAA 1991-2020 normals for Ben Lomond #4, 4.3 km from Mount Hermon

Average highs run from 77°F on May 1 to 83°F on May 31, and lows from 44°F to 47°F. Normal precipitation for the month is 1.24 in over about 4 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 Mount Hermon, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
80°F
Average low
46°F
Precipitation
1.24 in
Record high
97°FMay 14, 2014
Record low
36°FMay 10, 2022
Chance of a freeze
2%
Days of 90°F or more
3.8
Daylight
13 h 44 min to 14 h 32 min
Cloud cover
33%
Humidity
76%
Dew point
48°F
Wind
6.3 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
May 177°F44°F89°F 201440°F 200818%0%
May 277°F44°F91°F 200441°F 200117%0%
May 377°F44°F85°F 201340°F 200717%0%
May 478°F44°F85°F 201141°F 200217%0%
May 578°F44°F82°F 201139°F 202416%0%
May 678°F44°F80°F 201240°F 202416%0%
May 778°F45°F90°F 200143°F 200216%0%
May 878°F45°F87°F 200140°F 200215%0%
May 978°F45°F81°F 202538°F 202215%0%
May 1078°F45°F80°F 202536°F 202215%0%
May 1179°F45°F83°F 201437°F 202214%0%
May 1279°F45°F83°F 201440°F 202214%0%
May 1379°F45°F96°F 201440°F 201714%0%
May 1479°F46°F97°F 201442°F 199914%0%
May 1579°F46°F95°F 201438°F 199913%0%
May 1680°F46°F97°F 200844°F 199913%0%
May 1780°F46°F83°F 200841°F 201913%0%
May 1880°F46°F84°F 202642°F 201913%0%
May 1980°F46°F84°F 202644°F 200312%0%
May 2080°F46°F84°F 200338°F 202112%0%
May 2180°F47°F95°F 200043°F 200812%0%
May 2281°F47°F85°F 200038°F 201011%0%
May 2381°F47°F79°F 201240°F 201011%0%
May 2481°F47°F88°F 202242°F 200711%0%
May 2581°F47°F90°F 202043°F 201311%0%
May 2682°F47°F85°F 202044°F 201110%0%
May 2782°F47°F86°F 200344°F 200610%0%
May 2882°F47°F92°F 200343°F 200110%0%
May 2982°F47°F86°F 200243°F 20119%0%
May 3082°F47°F82°F 202545°F 20139%0%
May 3183°F47°F81°F 200040°F 20229%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mount Hermon, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:14 AM, sunset 7:58 PM
May 31
sunrise 5:50 AM, sunset 8:22 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00040673 (Ben Lomond #4), public domain. Records: NOAA GHCN-Daily, station USW00023277, 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.