La Mesa climate

La Mesa Weather in May

NOAA 1991-2020 normals for State Univ, 18.5 km from La Mesa

Average highs run from 82°F on May 1 to 93°F on May 31, and lows from 50°F to 59°F. Normal precipitation for the month is 0.38 in over about 2 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 La Mesa, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
87°F
Average low
54°F
Precipitation
0.38 in
Record high
106°FMay 22, 2005
Record low
37°FMay 3, 2010
Chance of a freeze
0%
Days of 90°F or more
11.5
Daylight
13 h 27 min to 14 h 06 min
Cloud cover
36%
Humidity
26%
Dew point
30°F
Wind
10.1 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 182°F50°F94°F 202040°F 20105%0%
May 282°F50°F93°F 200638°F 20165%0%
May 382°F50°F92°F 202037°F 20106%0%
May 483°F51°F92°F 202041°F 20106%0%
May 583°F51°F93°F 200446°F 20116%0%
May 683°F51°F94°F 201645°F 20256%0%
May 784°F52°F97°F 200942°F 20076%0%
May 884°F52°F97°F 200939°F 20146%0%
May 984°F52°F98°F 201842°F 20146%0%
May 1085°F52°F98°F 201841°F 20156%0%
May 1185°F53°F95°F 200941°F 20116%0%
May 1285°F53°F96°F 202644°F 20116%0%
May 1386°F53°F98°F 200339°F 20106%0%
May 1486°F54°F96°F 200343°F 20147%0%
May 1587°F54°F98°F 202247°F 20147%0%
May 1687°F54°F98°F 202248°F 20087%0%
May 1787°F54°F98°F 200343°F 20177%0%
May 1888°F55°F98°F 200344°F 20087%0%
May 1988°F55°F99°F 200645°F 20167%0%
May 2089°F55°F101°F 200844°F 20117%0%
May 2189°F56°F102°F 200541°F 20197%0%
May 2289°F56°F106°F 200549°F 20117%0%
May 2390°F56°F104°F 200552°F 20077%0%
May 2490°F57°F101°F 200547°F 20198%0%
May 2591°F57°F100°F 200548°F 20108%0%
May 2691°F57°F99°F 201852°F 20158%0%
May 2791°F58°F100°F 202247°F 20168%0%
May 2892°F58°F100°F 202051°F 20128%0%
May 2992°F58°F97°F 200252°F 20198%0%
May 3093°F59°F101°F 200251°F 20198%0%
May 3193°F59°F101°F 200253°F 20128%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at La Mesa, in percent, and of at least 0.1 inch of snowfall.02468101102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

May 1
sunrise 6:21 AM, sunset 7:48 PM
May 31
sunrise 6:02 AM, sunset 8:08 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00298535 (State Univ), public domain. Records: NOAA GHCN-Daily, station USC00298127, 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.