Alta climate

Alta Weather in May

NOAA 1991-2020 normals for Blue Canyon AP, 11.7 km from Alta

Average highs run from 56°F on May 1 to 65°F on May 31, and lows from 41°F to 50°F. Normal precipitation for the month is 4.11 in over about 8 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 Alta, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
61°F
Average low
46°F
Precipitation
4.11 in
Record high
88°FMay 28, 1984
Record low
21°FMay 3, 1950
Chance of a freeze
53%
Daylight
13 h 52 min to 14 h 44 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; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 156°F41°F79°F 194723°F 196430%1%
May 256°F42°F76°F 196623°F 195029%1%
May 357°F42°F77°F 196621°F 195029%1%
May 457°F42°F78°F 199023°F 197528%1%
May 557°F43°F77°F 198725°F 197528%1%
May 658°F43°F80°F 198722°F 196428%1%
May 758°F43°F77°F 200125°F 195027%1%
May 858°F43°F76°F 202024°F 194827%1%
May 959°F44°F74°F 202026°F 195327%1%
May 1059°F44°F77°F 200125°F 202226%0%
May 1159°F44°F77°F 197627°F 196726%0%
May 1260°F45°F82°F 197628°F 195126%0%
May 1360°F45°F81°F 197329°F 196826%0%
May 1460°F45°F78°F 197327°F 196825%0%
May 1560°F46°F79°F 200827°F 201125%0%
May 1661°F46°F81°F 200827°F 201125%0%
May 1761°F46°F83°F 200825°F 197425%0%
May 1861°F46°F81°F 195423°F 197424%0%
May 1962°F47°F81°F 200829°F 197424%0%
May 2062°F47°F80°F 200127°F 194524%0%
May 2162°F47°F81°F 196727°F 196023%0%
May 2263°F47°F82°F 196725°F 201023%0%
May 2363°F48°F82°F 200027°F 196023%0%
May 2463°F48°F80°F 198327°F 195322%0%
May 2563°F48°F83°F 195126°F 195322%0%
May 2664°F48°F82°F 198325°F 195321%0%
May 2764°F49°F86°F 198330°F 199821%0%
May 2864°F49°F88°F 198430°F 198820%0%
May 2964°F49°F84°F 195030°F 198820%0%
May 3065°F49°F88°F 202531°F 197119%0%
May 3165°F50°F86°F 195028°F 195519%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Alta, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:05 AM, sunset 7:57 PM
May 31
sunrise 5:39 AM, sunset 8:23 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00023225 (Blue Canyon AP), public domain. Records: NOAA GHCN-Daily, station USW00023225, 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.