Ottawa County climate

Ottawa County Weather in May

NOAA 1991-2020 normals for Sandusky, 19.4 km from Ottawa County

Average highs run from 64°F on May 1 to 73°F on May 31, and lows from 47°F to 59°F. Normal precipitation for the month is 3.25 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 Ottawa County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
69°F
Average low
53°F
Precipitation
3.25 in
Record high
93°FMay 20, 1962
Record low
30°FMay 10, 1966
Chance of a freeze
2%
Daylight
14 h 01 min to 14 h 58 min
Cloud cover
76%
Humidity
77%
Dew point
51°F
Wind
10.5 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 164°F47°F89°F 194234°F 194345%
May 264°F48°F87°F 195934°F 197845%
May 364°F48°F88°F 195535°F 194045%
May 465°F49°F89°F 195534°F 195445%
May 565°F49°F92°F 194936°F 197644%
May 665°F49°F92°F 195934°F 196844%
May 766°F50°F89°F 193632°F 198944%
May 866°F50°F89°F 193634°F 194744%
May 966°F51°F92°F 196333°F 202044%
May 1067°F51°F89°F 197930°F 196644%
May 1167°F51°F89°F 198731°F 196944%
May 1267°F52°F89°F 197934°F 202044%
May 1368°F52°F88°F 195635°F 199644%
May 1468°F53°F91°F 196237°F 194344%
May 1568°F53°F91°F 196238°F 195944%
May 1669°F53°F89°F 196235°F 195944%0%
May 1769°F54°F91°F 199140°F 198344%0%
May 1869°F54°F92°F 196239°F 200244%0%
May 1970°F54°F89°F 199837°F 200243%0%
May 2070°F55°F93°F 196238°F 198143%0%
May 2170°F55°F93°F 194141°F 199743%0%
May 2270°F56°F93°F 197740°F 197843%0%
May 2371°F56°F90°F 193641°F 196343%0%
May 2471°F56°F89°F 196438°F 196343%0%
May 2571°F57°F89°F 201240°F 195643%0%
May 2672°F57°F93°F 194442°F 196143%0%
May 2772°F57°F90°F 194142°F 194743%0%
May 2872°F58°F93°F 194142°F 194943%0%
May 2973°F58°F92°F 194240°F 200843%0%
May 3073°F58°F93°F 194238°F 194742%0%
May 3173°F59°F93°F 193743°F 199642%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ottawa 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 (EDT).

May 1
sunrise 6:29 AM, sunset 8:30 PM
May 31
sunrise 6:01 AM, sunset 8:59 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014846 (Sandusky), public domain. Records: NOAA GHCN-Daily, station USW00014846, 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.