Dearborn County climate

Dearborn County Weather in May

NOAA 1991-2020 normals for Milan 5 Ne, 7 km from Dearborn County

Average highs run from 68°F on May 1 to 76°F on May 31, and lows from 45°F to 54°F.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Dearborn County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
72°F
Average low
50°F
Record high
93°FMay 21, 1977
Record low
29°FMay 8, 1974
Chance of a freeze
44%
Daylight
13 h 52 min to 14 h 44 min
Cloud cover
65%
Humidity
80%
Dew point
56°F
Wind
5.4 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 168°F45°F87°F 200733°F 19940%
May 268°F45°F87°F 200733°F 20050%
May 369°F46°F85°F 198732°F 19780%
May 469°F46°F85°F 200131°F 19860%
May 569°F46°F86°F 198033°F 19860%
May 670°F47°F87°F 198035°F 19920%
May 770°F47°F87°F 200130°F 19740%
May 870°F47°F85°F 197929°F 19740%
May 971°F48°F89°F 197932°F 19760%
May 1071°F48°F87°F 199332°F 19760%
May 1171°F48°F89°F 197935°F 19770%
May 1271°F49°F88°F 197936°F 19760%
May 1372°F49°F90°F 198234°F 19960%
May 1472°F49°F89°F 198233°F 19960%
May 1572°F50°F90°F 198235°F 19960%
May 1672°F50°F88°F 197734°F 19970%
May 1773°F50°F89°F 197738°F 19840%
May 1873°F51°F89°F 197738°F 20090%
May 1973°F51°F91°F 199634°F 20020%
May 2073°F51°F91°F 197739°F 19810%
May 2173°F51°F93°F 197739°F 19970%
May 2274°F52°F91°F 197534°F 20020%
May 2374°F52°F89°F 197537°F 20020%
May 2474°F52°F90°F 197544°F 19990%
May 2574°F53°F93°F 197542°F 19920%
May 2675°F53°F90°F 197536°F 19830%
May 2775°F53°F89°F 197536°F 19830%
May 2875°F54°F89°F 197740°F 19830%
May 2975°F54°F92°F 197844°F 19890%
May 3075°F54°F93°F 198739°F 19840%
May 3176°F54°F91°F 200641°F 19840%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Dearborn County, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 6:41 AM, sunset 8:33 PM
May 31
sunrise 6:16 AM, sunset 9:00 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00125658 (Milan 5 Ne), public domain. Records: NOAA GHCN-Daily, station USC00331550, 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.