Fredericton, New Brunswick Climate Data

Fredericton, New Brunswick climate data is summarized below. Average annual temperatures range from 33.3 °F (low) to 52 °F (high). Annual precipitation averages 34.7 Inches. Fredericton 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 High52 °F
Avg Annual Low33.3 °F
Annual Precipitation34.7 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 Fredericton, New Brunswick

Average monthly temperatures and precipitation Switch to Celsius / Metric
MonthAvg. LowAvg. HighAvg. Precip
January-25.4 °F-20 °F304.8 in.
February-25 °F-19.3 °F457.2 in.
March-22.4 °F-16.4 °F1651 in.
April-18.4 °F-12.3 °F1981.2 in.
May-14.8 °F-8.4 °F2336.8 in.
June-12 °F-5.8 °F2336.8 in.
July-9.8 °F-3.7 °F2032 in.
August-10.2 °F-4 °F2082.8 in.
September-13 °F-6.5 °F1879.6 in.
October-16 °F-10.5 °F2921 in.
November-18.9 °F-14.2 °F2819.4 in.
December-22.7 °F-18.1 °F1600.2 in.
Annual33.3 °F52 °F34.72 in.

Additional Climate Conditions

Feels Like High-8.15|-6.88|-1|7.94|16.4|21.59|26.01|25.37|20.38|12.11|4.22|-4.07 °F
Feels Like Low-20.26|-19.46|-13.86|-4.79|3.14|9.48|14.02|13.22|7.52|0.99|-5.64|-14.22 °F
Avg Humidity75.36|75.65|68.9|68.72|70.12|74.19|76.12|78.19|78.69|79.69|78.8|82.15%
Avg Wind Speed13.66|14.3|14.89|14.02|12.41|11.09|10.08|9.29|10.71|11.88|12.5|13.26 mph
Cloud Cover71|74.13|69|67.5|70|64.5|58.5|53.5|53|63.5|68|75%
Days of Precipitation10|12|13|12|13|12|12|11|9|13|11|15 days/yr
Annual Snowfall65|86|63|16|0|0|0|0|0|1|11|81 in.

Climate Zone Data for Fredericton, 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 ConditionsModerate Drought
2026 plantmaps.com