Olmsted County climate

Olmsted County Weather in May

NOAA 1991-2020 normals for Rochester Intl AP, 13.2 km from Olmsted County

Average highs run from 62°F on May 1 to 74°F on May 31, and lows from 41°F to 53°F. Normal precipitation for the month is 4.35 in over about 13 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 Olmsted County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
68°F
Average low
47°F
Precipitation
4.35 in
Snowfall
0.5 in
Record high
106°FMay 31, 1934
Record low
21°FMay 3, 1910
Chance of a freeze
49%
Days of 90°F or more
0.7
Daylight
14 h 12 min to 15 h 15 min
Cloud cover
66%
Humidity
75%
Dew point
48°F
Wind
11.2 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 162°F41°F91°F 202125°F 194342%3%
May 263°F41°F90°F 195926°F 190942%3%
May 363°F42°F91°F 194921°F 191042%3%
May 463°F42°F91°F 191824°F 191042%3%
May 564°F43°F88°F 194926°F 195742%2%
May 664°F43°F94°F 193422°F 198942%2%
May 765°F43°F86°F 191624°F 192942%2%
May 865°F44°F84°F 191629°F 195542%2%
May 965°F44°F90°F 193422°F 196642%2%
May 1066°F45°F88°F 198723°F 196642%1%
May 1166°F45°F89°F 191126°F 194642%1%
May 1267°F46°F94°F 202226°F 193942%1%
May 1367°F46°F88°F 194026°F 199742%1%
May 1467°F46°F97°F 201326°F 192042%1%
May 1568°F47°F89°F 200127°F 193442%1%
May 1668°F47°F92°F 193629°F 192942%1%
May 1769°F48°F91°F 193429°F 193042%1%
May 1869°F48°F95°F 193432°F 191542%1%
May 1969°F48°F98°F 193423°F 192942%0%
May 2070°F49°F96°F 193430°F 195443%0%
May 2170°F49°F88°F 196431°F 192943%0%
May 2270°F50°F92°F 196430°F 196343%0%
May 2371°F50°F89°F 193925°F 193143%0%
May 2471°F50°F94°F 201031°F 193043%0%
May 2571°F51°F90°F 201829°F 193443%0%
May 2672°F51°F91°F 193931°F 196143%0%
May 2772°F52°F93°F 191435°F 191044%0%
May 2872°F52°F95°F 200631°F 193244%0%
May 2973°F52°F95°F 200633°F 194744%0%
May 3073°F53°F96°F 193431°F 193044%0%
May 3174°F53°F106°F 193433°F 193144%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Olmsted County, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:01 AM, sunset 8:13 PM
May 31
sunrise 5:30 AM, sunset 8:45 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014925 (Rochester Intl AP), public domain. Records: NOAA GHCN-Daily, station USW00014925, 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.