Waterbury climate

Waterbury Weather in May

NOAA 1991-2020 normals for Meriden Markham Muni AP, 19.3 km from Waterbury

Average highs run from 66°F on May 1 to 74°F on May 31, and lows from 43°F to 53°F. Normal precipitation for the month is 3.48 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 Waterbury, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
70°F
Average low
48°F
Precipitation
3.48 in
Record high
90°FMay 29, 2012
Record low
31°FMay 1, 2012
Chance of a freeze
33%
Days of 90°F or more
0.8
Daylight
14 h 01 min to 14 h 58 min
Cloud cover
63%
Humidity
78%
Dew point
50°F
Wind
4.5 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 166°F43°F88°F 201831°F 201239%
May 267°F43°F68°F 201140°F 201639%
May 367°F44°F75°F 201736°F 201339%
May 467°F44°F75°F 201536°F 201739%
May 568°F44°F81°F 201538°F 201740%
May 668°F45°F79°F 201534°F 201140%
May 768°F45°F76°F 201541°F 201440%
May 869°F45°F80°F 201538°F 201740%
May 969°F46°F84°F 201535°F 201141%
May 1069°F46°F75°F 201835°F 201341%0%
May 1169°F46°F83°F 201536°F 201741%0%
May 1270°F47°F87°F 201538°F 201242%0%
May 1370°F47°F85°F 201535°F 201342%0%
May 1470°F47°F81°F 201235°F 201342%0%
May 1570°F48°F81°F 201234°F 201342%0%
May 1671°F48°F78°F 201336°F 201342%0%
May 1771°F48°F82°F 201343°F 201543%0%
May 1871°F49°F88°F 201742°F 201443%0%
May 1971°F49°F71°F 201342°F 201243%0%
May 2071°F49°F80°F 201243°F 201443%0%
May 2172°F49°F82°F 201842°F 201443%0%
May 2272°F50°F87°F 201346°F 201543%0%
May 2372°F50°F76°F 201346°F 201543%0%
May 2472°F50°F80°F 201843°F 201543%0%
May 2573°F51°F81°F 201843°F 201343%0%
May 2673°F51°F86°F 201843°F 201343%0%
May 2773°F51°F89°F 201849°F 201343%0%
May 2873°F52°F83°F 201144°F 201343%0%
May 2974°F52°F90°F 201243°F 201443%0%
May 3074°F52°F88°F 201247°F 201443%0%
May 3174°F53°F89°F 201346°F 201443%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Waterbury, 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 5:49 AM, sunset 7:50 PM
May 31
sunrise 5:21 AM, sunset 8:19 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00054788 (Meriden Markham Muni AP), public domain. Records: NOAA GHCN-Daily, station USC00060128, 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.