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Weather & Climate
Stephenville, Newfoundland and Labrador, Canada
Overview
Climate data and monthly weather averages for Stephenville.
Key Metrics
Annual Avg
4.8°C
Summer Avg
14.5°C
Winter Avg
-4.2°C
Record High
26.7°C
Record Low
-18.9°C
Annual Precipitation
1224.2 mm
Avg Humidity
86%
Summer Humidity
85%
Winter Humidity
90%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 10° | -5° | -17.6° | 109.1 | 91% | 25 | 60.9 |
| Feb | 8.1° | -5.7° | -18.9° | 101.1 | 92% | 40 | 66.5 |
| Mar | 6.9° | -3.7° | -17.9° | 83.1 | 87% | 84 | 67.2 |
| Apr | 14.4° | 0.9° | -11.3° | 83.7 | 84% | 120 | 55 |
| May | 20.9° | 5.9° | -4° | 88.4 | 83% | 158 | 49.4 |
| Jun | 24.7° | 10.8° | 0.3° | 90.6 | 84% | 163 | 45.3 |
| Jul | 24.4° | 15.8° | 6.1° | 96.4 | 85% | 162 | 35.2 |
| Aug | 26.7° | 17° | 6.6° | 103.2 | 85% | 143 | 43.9 |
| Sep | 24.1° | 13.1° | 3° | 116.7 | 84% | 101 | 57.3 |
| Oct | 20.2° | 7.8° | -1.8° | 111.9 | 85% | 65 | 49.2 |
| Nov | 14.8° | 2.7° | -8° | 119.4 | 86% | 31 | 58.9 |
| Dec | 12° | -1.8° | -13.2° | 120.6 | 88% | 20 | 58.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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