Garfield County climate

Garfield County Weather in May

NOAA 1991-2020 normals for Pomeroy, 5.1 km from Garfield County

Average highs run from 63°F on May 1 to 71°F on May 31, and lows from 40°F to 47°F. Normal precipitation for the month is 1.60 in over about 9 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 Garfield County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
67°F
Average low
44°F
Precipitation
1.60 in
Record high
100°FMay 29, 1983
Record low
23°FMay 1, 1954
Chance of a freeze
54%
Daylight
14 h 24 min to 15 h 33 min
Cloud cover
62%
Humidity
67%
Dew point
42°F
Wind
7.8 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 163°F40°F87°F 199823°F 195428%0%
May 263°F41°F87°F 196628°F 195428%0%
May 364°F41°F91°F 196632°F 196928%0%
May 464°F41°F93°F 196633°F 194928%0%
May 564°F41°F96°F 196632°F 198228%0%
May 665°F42°F92°F 202133°F 195028%0%
May 765°F42°F93°F 198733°F 200328%0%
May 865°F42°F93°F 200734°F 199928%0%
May 966°F42°F90°F 198733°F 195528%0%
May 1066°F43°F93°F 201333°F 199929%0%
May 1166°F43°F94°F 199334°F 198329%0%
May 1267°F43°F96°F 198831°F 198529%0%
May 1367°F43°F89°F 197332°F 195529%0%
May 1467°F44°F94°F 197332°F 195529%0%
May 1567°F44°F95°F 200636°F 197430%0%
May 1668°F44°F96°F 200634°F 198330%0%
May 1768°F44°F97°F 200637°F 197430%0%
May 1868°F45°F97°F 200634°F 196530%0%
May 1968°F45°F92°F 202337°F 195130%0%
May 2069°F45°F95°F 202339°F 196030%0%
May 2169°F45°F91°F 195835°F 196030%0%
May 2269°F45°F93°F 195832°F 196030%0%
May 2369°F46°F96°F 198534°F 196430%0%
May 2469°F46°F93°F 200337°F 195030%0%
May 2570°F46°F93°F 199235°F 195530%0%
May 2670°F46°F95°F 195839°F 196729%0%
May 2770°F46°F95°F 195838°F 197329%0%
May 2870°F47°F98°F 198337°F 195529%0%
May 2970°F47°F100°F 198335°F 195129%0%
May 3070°F47°F99°F 198632°F 195128%0%
May 3171°F47°F98°F 198634°F 195128%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Garfield County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 5:36 AM, sunset 8:00 PM
May 31
sunrise 5:02 AM, sunset 8:35 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00456610 (Pomeroy), public domain. Records: NOAA GHCN-Daily, station USW00024149, 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.