St. Stephen, New Brunswick Climate Data

St. Stephen, New Brunswick climate data is summarized below. Average annual temperatures range from 34.1 °F (low) to 53.5 °F (high). Annual precipitation averages 37.6 Inches. St. Stephen is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.

Avg Annual High53.5 °F
Avg Annual Low34.1 °F
Annual Precipitation37.6 in.
Hardiness ZoneZone 5b
Growing Season: Last frost around May 11 - May 20 — First frost around Sep. 21 - Sep. 30 — Approximately 150-180 Days frost days per year.

Monthly Average Climate Data for St. Stephen, New Brunswick

Average monthly temperatures and precipitation Switch to Celsius / Metric
MonthAvg. LowAvg. HighAvg. Precip
January-24.8 °F-19.1 °F635 in.
February-24.4 °F-18.5 °F762 in.
March-21.7 °F-15.6 °F1778 in.
April-17.9 °F-11.7 °F2387.6 in.
May-14.7 °F-8.3 °F2438.4 in.
June-12 °F-5.7 °F2133.6 in.
July-10 °F-3.6 °F2108.2 in.
August-10.4 °F-3.9 °F1981.2 in.
September-12.9 °F-6.4 °F1879.6 in.
October-15.8 °F-10.1 °F2895.6 in.
November-18.7 °F-13.7 °F2895.6 in.
December-22.2 °F-17.3 °F2387.6 in.
Annual34.1 °F53.5 °F37.64 in.

Additional Climate Conditions

Feels Like High-5.2|-4.29|1.33|9.45|16.7|21.84|26.3|25.71|20.73|13.15|5.94|-1.49 °F
Feels Like Low-16.82|-16.14|-10.65|-2.31|4.45|9.99|13.92|13.29|8.45|2.65|-3.48|-11.45 °F
Avg Humidity76.5|76|70|70.01|73|76.03|78.5|80.5|81.02|82.51|81|83.02%
Avg Wind Speed9.34|10.14|10.54|10.16|8.95|7.44|6.61|6.31|6.82|7.74|8.2|8.77 mph
Cloud Cover63.09|68.59|66.04|65.02|67|62.02|56.02|51.48|51.5|59.54|63.04|68.59%
Days of Precipitation11|12|12|12|14|12|11|10|9|12|10|14 days/yr
Annual Snowfall56|62|39|9|0|0|0|0|0|1|5|49 in.

Climate Zone Data for St. Stephen, New Brunswick

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness ZoneZone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
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