Sumner climate

Sumner Weather in May

NOAA 1991-2020 normals for Hartford, 9.9 km from Sumner

Average highs run from 59°F on May 1 to 68°F on May 31, and lows from 37°F to 47°F. Normal precipitation for the month is 3.86 in over about 14 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 Sumner, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
64°F
Average low
42°F
Precipitation
3.86 in
Snowfall
0.3 in
Record high
101°FMay 22, 1911
Record low
26°FMay 5, 1966
Chance of a freeze
71%
Daylight
14 h 14 min to 15 h 17 min
Cloud cover
69%
Humidity
80%
Dew point
44°F
Wind
4.7 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 159°F37°F82°F 189928°F 192243%4%
May 260°F37°F89°F 200128°F 190343%3%
May 360°F38°F91°F 200128°F 196643%3%
May 460°F38°F87°F 189531°F 189943%3%
May 561°F39°F86°F 194426°F 196643%3%
May 661°F39°F86°F 193027°F 197143%2%
May 762°F39°F92°F 189529°F 196743%2%
May 862°F40°F89°F 189529°F 195043%2%
May 962°F40°F96°F 197930°F 195644%2%
May 1063°F40°F92°F 189529°F 199744%2%
May 1163°F41°F91°F 189529°F 190044%2%
May 1263°F41°F89°F 191130°F 190044%1%
May 1364°F41°F82°F 199132°F 193944%1%
May 1464°F42°F86°F 196134°F 189544%1%
May 1564°F42°F87°F 190032°F 194744%1%
May 1664°F42°F93°F 193230°F 193645%1%
May 1765°F43°F89°F 196934°F 193945%1%
May 1865°F43°F90°F 190335°F 198345%1%
May 1965°F43°F91°F 196234°F 195145%1%
May 2066°F44°F90°F 197533°F 200245%1%
May 2166°F44°F94°F 199235°F 190045%1%
May 2266°F44°F101°F 191134°F 193645%0%
May 2366°F44°F95°F 199234°F 190745%0%
May 2466°F45°F92°F 196434°F 193245%0%
May 2567°F45°F89°F 198131°F 195645%0%
May 2667°F45°F90°F 191435°F 195645%0%
May 2767°F46°F89°F 198134°F 196946%0%
May 2867°F46°F92°F 191136°F 199446%0%
May 2968°F46°F93°F 192938°F 190746%0%
May 3068°F47°F93°F 192938°F 191546%0%
May 3168°F47°F93°F 193736°F 196146%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sumner, 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 5:32 AM, sunset 7:46 PM
May 31
sunrise 5:01 AM, sunset 8:18 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00173570 (Hartford), public domain. Records: NOAA GHCN-Daily, station USC00174566, 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.