Etna climate

Etna Weather in May

NOAA 1991-2020 normals for Callahan, 14.5 km from Etna

Average highs run from 69°F on May 1 to 77°F on May 31, and lows from 38°F to 43°F. Normal precipitation for the month is 1.55 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 Etna, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
73°F
Average low
40°F
Precipitation
1.55 in
Record high
98°FMay 16, 2008
Record low
19°FMay 1, 2008
Chance of a freeze
89%
Days of 90°F or more
0.6
Daylight
14 h 02 min to 14 h 57 min
Cloud cover
52%
Humidity
77%
Dew point
42°F
Wind
3.8 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 169°F38°F87°F 201419°F 200830%0%
May 269°F38°F84°F 200429°F 201929%0%
May 369°F38°F85°F 201727°F 202229%0%
May 470°F38°F85°F 201729°F 201029%0%
May 570°F38°F88°F 202129°F 200329%0%
May 670°F39°F85°F 202623°F 201028%0%
May 771°F39°F89°F 200129°F 195028%0%
May 871°F39°F90°F 202024°F 202228%0%
May 971°F39°F92°F 202028°F 200228%0%
May 1072°F39°F87°F 194929°F 201128%0%
May 1172°F40°F92°F 200124°F 202227%0%
May 1272°F40°F89°F 202130°F 200827%0%
May 1372°F40°F89°F 201231°F 200727%0%
May 1473°F40°F92°F 201431°F 195127%0%
May 1573°F40°F94°F 200831°F 202527%0%
May 1673°F41°F98°F 200833°F 200227%0%
May 1773°F41°F96°F 200829°F 201726%0%
May 1874°F41°F94°F 200830°F 201726%0%
May 1974°F41°F93°F 200832°F 195026%0%
May 2074°F41°F93°F 202331°F 201026%0%
May 2174°F41°F92°F 200133°F 201626%0%
May 2275°F41°F95°F 200125°F 201325%0%
May 2375°F42°F94°F 200128°F 201025%0%
May 2475°F42°F92°F 200130°F 201125%0%
May 2575°F42°F92°F 194933°F 201324%0%
May 2676°F42°F91°F 195131°F 201024%0%
May 2776°F42°F95°F 202033°F 201224%0%
May 2876°F42°F98°F 202031°F 201123%0%
May 2976°F42°F95°F 202030°F 201023%0%
May 3076°F42°F94°F 202534°F 202222%0%
May 3177°F43°F97°F 202135°F 202222%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Etna, 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 6:08 AM, sunset 8:10 PM
May 31
sunrise 5:41 AM, sunset 8:38 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041316 (Callahan), public domain. Records: NOAA GHCN-Daily, station USW00024259, 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.