Grenfell, Canada experiences average highs of 9°C (48°F) and lows of -1°C (30°F) throughout the year. The climate is relatively dry, with only 7 rainy days per month on average. Sunshine is abundant, averaging about 9 hours per day. Average highs have cooled by 1.4°C (2.5°F) across the available records.
Grenfell, Canada Weather & Climate 2026
Monthly climate averages for Grenfell, Canada. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.6/10
Best: June, July, August, September
UV Index
4
Low
Temperature 9°C / -1°C
Feels Like 6°C / -5°C
Rainy Days 7
Rainfall 40 mm
Sunshine 9 h
Humidity 69%
Wind Speed 22 km/h
Dew Point -1°C
Snow Days 8 days
Frost Days 20 days
Hottest Month
26°C
July
Avg Low15°C
Rain9days
Coldest Month
-17°C
February
Avg High-7°C
Rain4days
Driest Month
4days
January
Avg High-7°C
Avg Low-16°C
Windiest Month
24 km/h
April (Gusts 45)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures.
Sun Position
Sunrise 04:41
Daylight 16.4h
Sunset 21:06
Live conditions—
Grenfell on the map · live conditions
Grenfell, Canada
- Continent
- Americas
- Country
- Canada
- City
- Grenfell
- Population
- 997
- Coordinates
- 50.42°, -102.93°
Seasonal Breakdown
Spring
Mar–May
Avg High 10°C
Avg Low -2°C
Rain 7 days/mo
Summer
Jun–Aug
Avg High 25°C
Avg Low 13°C
Rain 9 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 11°C
Avg Low 2°C
Rain 6 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -7°C
Avg Low -16°C
Rain 5 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -7°C / -16°C . Feb: -7°C / -17°C . Mar: 1°C / -9°C . Apr: 9°C / -3°C . May: 19°C / 6°C . Jun: 23°C / 12°C . Jul: 26°C / 15°C . Aug: 25°C / 14°C . Sep: 21°C / 10°C . Oct: 10°C / 2°C . Nov: 1°C / -6°C . Dec: -6°C / -14°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 16 mm. Feb: 13 mm. Mar: 24 mm. Apr: 35 mm. May: 60 mm. Jun: 88 mm. Jul: 60 mm. Aug: 54 mm. Sep: 47 mm. Oct: 37 mm. Nov: 26 mm. Dec: 24 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 80%. Feb: 76%. Mar: 73%. Apr: 62%. May: 58%. Jun: 63%. Jul: 67%. Aug: 64%. Sep: 62%. Oct: 68%. Nov: 76%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 21 km/h . Mar: 22 km/h . Apr: 24 km/h . May: 22 km/h . Jun: 23 km/h . Jul: 20 km/h . Aug: 20 km/h . Sep: 22 km/h . Oct: 22 km/h . Nov: 21 km/h . Dec: 21 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 7h. Mar: 8h. Apr: 10h. May: 12h. Jun: 12h. Jul: 13h. Aug: 12h. Sep: 9h. Oct: 7h. Nov: 5h. Dec: 4h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 11 days. Feb: 10 days. Mar: 9 days. Apr: 6 days. May: 1 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 5 days. Nov: 11 days. Dec: 11 days.
Climate Trends
Average highs have cooled by 1.4°C (2.5°F) across the available records. Average rainfall is trending drier by about 12 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 25°C | Jul · 26°C |
| Coldest month | Feb 2025 · -22°C | Feb · -17°C |
| Wettest month | Aug 2025 · 75 mm | Jun · 88 mm |
| Windiest month | Oct 2025 · 25 km/h | Apr · 24 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Poor November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -7°C / -16°C | -13°C / -22°C | 4days (16 mm) Good | 5h Fair | 80% Humid | 1.9 Low | Poor | View Details |
| February | -7°C / -17°C | -12°C / -23°C | 4days (13 mm) Good | 7.2h Good | 76% Humid | 3.2 Moderate | Poor | View Details |
| March | 1°C / -9°C | -4°C / -15°C | 5days (24 mm) Good | 8.4h Good | 73% Muggy | 4.9 Moderate | Poor | View Details |
| April | 9°C / -3°C | 5°C / -8°C | 6days (35 mm) Good | 10.2h Excellent | 62% Muggy | 5.4 High | Poor | View Details |
| May | 19°C / 6°C | 16°C / 2°C | 9days (60 mm) Wet | 11.6h Excellent | 58% Moderate | 5.9 High | Fair | View Details |
| June best | 23°C / 12°C | 21°C / 10°C | 11days (88 mm) Wet | 12.3h Excellent | 63% Muggy | 6.6 High | Excellent | View Details |
| July best | 26°C / 15°C | 26°C / 13°C | 9days (60 mm) Wet | 12.9h Excellent | 67% Muggy | 6.8 High | Excellent | View Details |
| August best | 25°C / 14°C | 24°C / 12°C | 8days (54 mm) Wet | 11.7h Excellent | 64% Muggy | 5.9 High | Excellent | View Details |
| September best | 21°C / 10°C | 18°C / 7°C | 7days (47 mm) Good | 9h Good | 62% Muggy | 4.7 Moderate | Excellent | View Details |
| October | 10°C / 2°C | 6°C / -3°C | 6days (37 mm) Good | 6.8h Fair | 68% Muggy | 2.9 Moderate | Poor | View Details |
| November | 1°C / -6°C | -4°C / -12°C | 6days (26 mm) Good | 5h Fair | 76% Humid | 1.9 Low | Poor | View Details |
| December | -6°C / -14°C | -11°C / -20°C | 6days (24 mm) Good | 4.4h Fair | 79% Humid | 1.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Grenfell are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Grenfell, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Grenfell is July, with average daytime highs of 26°C (78°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Grenfell is February, with average overnight lows of -17°C (1°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Grenfell is June, averaging 88mm of precipitation across 11 rainy days. An umbrella or waterproof jacket is essential.
Grenfell receives approximately 105 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Grenfell.
The least favorable months to visit Grenfell are January, February, November, December, primarily due to very cold temperatures. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Grenfell is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Grenfell is 69%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Grenfell receives snow. Months with snowfall average 8 snow days and 11 cm (4 in) of accumulation, with about 20 frost days during winter.
Average wind speeds in Grenfell are 22 km/h (14 mph). The windiest month is April with peak winds reaching 24 km/h (15 mph) (gusts up to 45 km/h / 28 mph).
Grenfell averages 4 clear-sky days per month with overall cloud cover around 59%. The clearest skies occur in July.
The annual average dew point in Grenfell is -1°C (30°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Grenfell has a Warm-Summer Continental climate, classified as Dfb under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Grenfell ranges from -5°C (23°F) to 6°C (43°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Grenfell. It earns a climate score of 7.9/10 with Excellent.
For June in Grenfell, pack Warm evening layer, Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses. With average highs of 23°C (73°F) and 11 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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