Saint John climate

Saint John Weather in May

NOAA 1991-2020 normals for Hudson, 14.4 km from Saint John

Average highs run from 73°F on May 1 to 84°F on May 31, and lows from 47°F to 59°F. Normal precipitation for the month is 4.64 in over about 7 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 Saint John, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
78°F
Average low
53°F
Precipitation
4.64 in
Record high
107°FMay 23, 1996
Record low
20°FMay 1, 1909
Chance of a freeze
13%
Days of 90°F or more
4.6
Daylight
13 h 47 min to 14 h 36 min
Cloud cover
58%
Humidity
66%
Dew point
52°F
Wind
12.1 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 173°F47°F95°F 199220°F 190923%0%
May 273°F47°F93°F 190227°F 196123%0%
May 374°F47°F97°F 195028°F 190323%0%
May 474°F48°F97°F 196329°F 190723%0%
May 574°F48°F100°F 201432°F 190723%0%
May 675°F49°F95°F 191632°F 194424%0%
May 775°F49°F98°F 191633°F 190824%0%
May 875°F49°F98°F 198931°F 198424%0%
May 976°F50°F100°F 196335°F 192324%0%
May 1076°F50°F99°F 201131°F 189724%0%
May 1176°F51°F95°F 196332°F 194624%0%
May 1277°F51°F100°F 200032°F 196024%0%
May 1377°F51°F94°F 197028°F 191424%0%
May 1478°F52°F92°F 194129°F 191424%0%
May 1578°F52°F97°F 196328°F 190724%0%
May 1678°F53°F98°F 199634°F 192324%0%
May 1779°F53°F101°F 199634°F 201424%0%
May 1879°F54°F100°F 195638°F 191024%0%
May 1979°F54°F101°F 193337°F 198324%0%
May 2080°F54°F100°F 192536°F 193124%0%
May 2180°F55°F102°F 192537°F 191524%0%
May 2281°F55°F99°F 191233°F 193124%0%
May 2381°F56°F107°F 199634°F 191324%0%
May 2481°F56°F100°F 189640°F 197924%0%
May 2582°F56°F102°F 195341°F 200224%0%
May 2682°F57°F99°F 191231°F 190724%0%
May 2783°F57°F99°F 199124°F 190724%0%
May 2883°F58°F100°F 193437°F 190724%0%
May 2983°F58°F102°F 191335°F 198424%0%
May 3084°F58°F101°F 191341°F 199224%0%
May 3184°F59°F102°F 195341°F 190124%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Saint John, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:39 AM, sunset 8:26 PM
May 31
sunrise 6:15 AM, sunset 8:51 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00143847 (Hudson), public domain. Records: NOAA GHCN-Daily, station USC00146549, 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.