Watertown climate

Watertown Weather in May

NOAA 1991-2020 normals for Burlington, 26 km from Watertown

Average highs run from 66°F on May 1 to 74°F on May 31, and lows from 42°F to 52°F. Normal precipitation for the month is 4.19 in over about 12 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 Watertown, 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
47°F
Precipitation
4.19 in
Record high
90°FMay 29, 2012
Record low
31°FMay 1, 2012
Chance of a freeze
32%
Days of 90°F or more
0.9
Daylight
14 h 02 min to 14 h 59 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°F42°F88°F 201831°F 201238%0%
May 267°F42°F68°F 201140°F 201639%0%
May 367°F43°F75°F 201736°F 201339%0%
May 467°F43°F75°F 201536°F 201739%0%
May 568°F43°F81°F 201538°F 201739%0%
May 668°F44°F79°F 201534°F 201139%0%
May 768°F44°F76°F 201541°F 201439%0%
May 869°F44°F80°F 201538°F 201739%0%
May 969°F45°F84°F 201535°F 201139%0%
May 1069°F45°F75°F 201835°F 201339%0%
May 1169°F45°F83°F 201536°F 201739%0%
May 1270°F46°F87°F 201538°F 201239%0%
May 1370°F46°F85°F 201535°F 201339%0%
May 1470°F46°F81°F 201235°F 201339%0%
May 1570°F47°F81°F 201234°F 201339%0%
May 1671°F47°F78°F 201336°F 201339%0%
May 1771°F47°F82°F 201343°F 201539%0%
May 1871°F48°F88°F 201742°F 201439%0%
May 1971°F48°F71°F 201342°F 201239%0%
May 2072°F48°F80°F 201243°F 201439%0%
May 2172°F48°F82°F 201842°F 201439%0%
May 2272°F49°F87°F 201346°F 201539%0%
May 2372°F49°F76°F 201346°F 201539%0%
May 2472°F49°F80°F 201843°F 201539%0%
May 2573°F50°F81°F 201843°F 201338%0%
May 2673°F50°F86°F 201843°F 201338%0%
May 2773°F50°F89°F 201849°F 201338%0%
May 2873°F51°F83°F 201144°F 201338%0%
May 2974°F51°F90°F 201243°F 201438%0%
May 3074°F51°F88°F 201247°F 201438%0%
May 3174°F52°F89°F 201346°F 201438%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Watertown, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 5:49 AM, sunset 7:51 PM
May 31
sunrise 5:21 AM, sunset 8:20 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00060973 (Burlington), 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.